LCOV - code coverage report
Current view: top level - src/bin/initdb - initdb.c (source / functions) Hit Total Coverage
Test: PostgreSQL 17beta1 Lines: 996 1220 81.6 %
Date: 2024-06-17 23:11:01 Functions: 60 62 96.8 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * initdb --- initialize a PostgreSQL installation
       4             :  *
       5             :  * initdb creates (initializes) a PostgreSQL database cluster (site,
       6             :  * instance, installation, whatever).  A database cluster is a
       7             :  * collection of PostgreSQL databases all managed by the same server.
       8             :  *
       9             :  * To create the database cluster, we create the directory that contains
      10             :  * all its data, create the files that hold the global tables, create
      11             :  * a few other control files for it, and create three databases: the
      12             :  * template databases "template0" and "template1", and a default user
      13             :  * database "postgres".
      14             :  *
      15             :  * The template databases are ordinary PostgreSQL databases.  template0
      16             :  * is never supposed to change after initdb, whereas template1 can be
      17             :  * changed to add site-local standard data.  Either one can be copied
      18             :  * to produce a new database.
      19             :  *
      20             :  * For largely-historical reasons, the template1 database is the one built
      21             :  * by the basic bootstrap process.  After it is complete, template0 and
      22             :  * the default database, postgres, are made just by copying template1.
      23             :  *
      24             :  * To create template1, we run the postgres (backend) program in bootstrap
      25             :  * mode and feed it data from the postgres.bki library file.  After this
      26             :  * initial bootstrap phase, some additional stuff is created by normal
      27             :  * SQL commands fed to a standalone backend.  Some of those commands are
      28             :  * just embedded into this program (yeah, it's ugly), but larger chunks
      29             :  * are taken from script files.
      30             :  *
      31             :  *
      32             :  * Note:
      33             :  *   The program has some memory leakage - it isn't worth cleaning it up.
      34             :  *
      35             :  * This is a C implementation of the previous shell script for setting up a
      36             :  * PostgreSQL cluster location, and should be highly compatible with it.
      37             :  * author of C translation: Andrew Dunstan     mailto:andrew@dunslane.net
      38             :  *
      39             :  * This code is released under the terms of the PostgreSQL License.
      40             :  *
      41             :  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
      42             :  * Portions Copyright (c) 1994, Regents of the University of California
      43             :  *
      44             :  * src/bin/initdb/initdb.c
      45             :  *
      46             :  *-------------------------------------------------------------------------
      47             :  */
      48             : 
      49             : #include "postgres_fe.h"
      50             : 
      51             : #include <dirent.h>
      52             : #include <fcntl.h>
      53             : #include <netdb.h>
      54             : #include <sys/socket.h>
      55             : #include <sys/stat.h>
      56             : #ifdef USE_ICU
      57             : #include <unicode/ucol.h>
      58             : #endif
      59             : #include <unistd.h>
      60             : #include <signal.h>
      61             : #include <time.h>
      62             : 
      63             : #ifdef HAVE_SHM_OPEN
      64             : #include "sys/mman.h"
      65             : #endif
      66             : 
      67             : #include "access/xlog_internal.h"
      68             : #include "catalog/pg_authid_d.h"
      69             : #include "catalog/pg_class_d.h" /* pgrminclude ignore */
      70             : #include "catalog/pg_collation_d.h"
      71             : #include "catalog/pg_database_d.h"    /* pgrminclude ignore */
      72             : #include "common/file_perm.h"
      73             : #include "common/file_utils.h"
      74             : #include "common/logging.h"
      75             : #include "common/pg_prng.h"
      76             : #include "common/restricted_token.h"
      77             : #include "common/string.h"
      78             : #include "common/username.h"
      79             : #include "fe_utils/option_utils.h"
      80             : #include "fe_utils/string_utils.h"
      81             : #include "getopt_long.h"
      82             : #include "mb/pg_wchar.h"
      83             : #include "miscadmin.h"
      84             : 
      85             : 
      86             : /* Ideally this would be in a .h file, but it hardly seems worth the trouble */
      87             : extern const char *select_default_timezone(const char *share_path);
      88             : 
      89             : /* simple list of strings */
      90             : typedef struct _stringlist
      91             : {
      92             :     char       *str;
      93             :     struct _stringlist *next;
      94             : } _stringlist;
      95             : 
      96             : static const char *const auth_methods_host[] = {
      97             :     "trust", "reject", "scram-sha-256", "md5", "password", "ident", "radius",
      98             : #ifdef ENABLE_GSS
      99             :     "gss",
     100             : #endif
     101             : #ifdef ENABLE_SSPI
     102             :     "sspi",
     103             : #endif
     104             : #ifdef USE_PAM
     105             :     "pam",
     106             : #endif
     107             : #ifdef USE_BSD_AUTH
     108             :     "bsd",
     109             : #endif
     110             : #ifdef USE_LDAP
     111             :     "ldap",
     112             : #endif
     113             : #ifdef USE_SSL
     114             :     "cert",
     115             : #endif
     116             :     NULL
     117             : };
     118             : static const char *const auth_methods_local[] = {
     119             :     "trust", "reject", "scram-sha-256", "md5", "password", "peer", "radius",
     120             : #ifdef USE_PAM
     121             :     "pam",
     122             : #endif
     123             : #ifdef USE_BSD_AUTH
     124             :     "bsd",
     125             : #endif
     126             : #ifdef USE_LDAP
     127             :     "ldap",
     128             : #endif
     129             :     NULL
     130             : };
     131             : 
     132             : /*
     133             :  * these values are passed in by makefile defines
     134             :  */
     135             : static char *share_path = NULL;
     136             : 
     137             : /* values to be obtained from arguments */
     138             : static char *pg_data = NULL;
     139             : static char *encoding = NULL;
     140             : static char *locale = NULL;
     141             : static char *lc_collate = NULL;
     142             : static char *lc_ctype = NULL;
     143             : static char *lc_monetary = NULL;
     144             : static char *lc_numeric = NULL;
     145             : static char *lc_time = NULL;
     146             : static char *lc_messages = NULL;
     147             : static char locale_provider = COLLPROVIDER_LIBC;
     148             : static bool builtin_locale_specified = false;
     149             : static char *datlocale = NULL;
     150             : static bool icu_locale_specified = false;
     151             : static char *icu_rules = NULL;
     152             : static const char *default_text_search_config = NULL;
     153             : static char *username = NULL;
     154             : static bool pwprompt = false;
     155             : static char *pwfilename = NULL;
     156             : static char *superuser_password = NULL;
     157             : static const char *authmethodhost = NULL;
     158             : static const char *authmethodlocal = NULL;
     159             : static _stringlist *extra_guc_names = NULL;
     160             : static _stringlist *extra_guc_values = NULL;
     161             : static bool debug = false;
     162             : static bool noclean = false;
     163             : static bool noinstructions = false;
     164             : static bool do_sync = true;
     165             : static bool sync_only = false;
     166             : static bool show_setting = false;
     167             : static bool data_checksums = false;
     168             : static char *xlog_dir = NULL;
     169             : static int  wal_segment_size_mb = (DEFAULT_XLOG_SEG_SIZE) / (1024 * 1024);
     170             : static DataDirSyncMethod sync_method = DATA_DIR_SYNC_METHOD_FSYNC;
     171             : 
     172             : 
     173             : /* internal vars */
     174             : static const char *progname;
     175             : static int  encodingid;
     176             : static char *bki_file;
     177             : static char *hba_file;
     178             : static char *ident_file;
     179             : static char *conf_file;
     180             : static char *dictionary_file;
     181             : static char *info_schema_file;
     182             : static char *features_file;
     183             : static char *system_constraints_file;
     184             : static char *system_functions_file;
     185             : static char *system_views_file;
     186             : static bool success = false;
     187             : static bool made_new_pgdata = false;
     188             : static bool found_existing_pgdata = false;
     189             : static bool made_new_xlogdir = false;
     190             : static bool found_existing_xlogdir = false;
     191             : static char infoversion[100];
     192             : static bool caught_signal = false;
     193             : static bool output_failed = false;
     194             : static int  output_errno = 0;
     195             : static char *pgdata_native;
     196             : 
     197             : /* defaults */
     198             : static int  n_connections = 10;
     199             : static int  n_buffers = 50;
     200             : static const char *dynamic_shared_memory_type = NULL;
     201             : static const char *default_timezone = NULL;
     202             : 
     203             : /*
     204             :  * Warning messages for authentication methods
     205             :  */
     206             : #define AUTHTRUST_WARNING \
     207             : "# CAUTION: Configuring the system for local \"trust\" authentication\n" \
     208             : "# allows any local user to connect as any PostgreSQL user, including\n" \
     209             : "# the database superuser.  If you do not trust all your local users,\n" \
     210             : "# use another authentication method.\n"
     211             : static bool authwarning = false;
     212             : 
     213             : /*
     214             :  * Centralized knowledge of switches to pass to backend
     215             :  *
     216             :  * Note: we run the backend with -F (fsync disabled) and then do a single
     217             :  * pass of fsync'ing at the end.  This is faster than fsync'ing each step.
     218             :  *
     219             :  * Note: in the shell-script version, we also passed PGDATA as a -D switch,
     220             :  * but here it is more convenient to pass it as an environment variable
     221             :  * (no quoting to worry about).
     222             :  */
     223             : static const char *const boot_options = "-F -c log_checkpoints=false";
     224             : static const char *const backend_options = "--single -F -O -j -c search_path=pg_catalog -c exit_on_error=true -c log_checkpoints=false";
     225             : 
     226             : /* Additional switches to pass to backend (either boot or standalone) */
     227             : static char *extra_options = "";
     228             : 
     229             : static const char *const subdirs[] = {
     230             :     "global",
     231             :     "pg_wal/archive_status",
     232             :     "pg_wal/summaries",
     233             :     "pg_commit_ts",
     234             :     "pg_dynshmem",
     235             :     "pg_notify",
     236             :     "pg_serial",
     237             :     "pg_snapshots",
     238             :     "pg_subtrans",
     239             :     "pg_twophase",
     240             :     "pg_multixact",
     241             :     "pg_multixact/members",
     242             :     "pg_multixact/offsets",
     243             :     "base",
     244             :     "base/1",
     245             :     "pg_replslot",
     246             :     "pg_tblspc",
     247             :     "pg_stat",
     248             :     "pg_stat_tmp",
     249             :     "pg_xact",
     250             :     "pg_logical",
     251             :     "pg_logical/snapshots",
     252             :     "pg_logical/mappings"
     253             : };
     254             : 
     255             : 
     256             : /* path to 'initdb' binary directory */
     257             : static char bin_path[MAXPGPATH];
     258             : static char backend_exec[MAXPGPATH];
     259             : 
     260             : static char **replace_token(char **lines,
     261             :                             const char *token, const char *replacement);
     262             : static char **replace_guc_value(char **lines,
     263             :                                 const char *guc_name, const char *guc_value,
     264             :                                 bool mark_as_comment);
     265             : static bool guc_value_requires_quotes(const char *guc_value);
     266             : static char **readfile(const char *path);
     267             : static void writefile(char *path, char **lines);
     268             : static FILE *popen_check(const char *command, const char *mode);
     269             : static char *get_id(void);
     270             : static int  get_encoding_id(const char *encoding_name);
     271             : static void set_input(char **dest, const char *filename);
     272             : static void check_input(char *path);
     273             : static void write_version_file(const char *extrapath);
     274             : static void set_null_conf(void);
     275             : static void test_config_settings(void);
     276             : static bool test_specific_config_settings(int test_conns, int test_buffs);
     277             : static void setup_config(void);
     278             : static void bootstrap_template1(void);
     279             : static void setup_auth(FILE *cmdfd);
     280             : static void get_su_pwd(void);
     281             : static void setup_depend(FILE *cmdfd);
     282             : static void setup_run_file(FILE *cmdfd, const char *filename);
     283             : static void setup_description(FILE *cmdfd);
     284             : static void setup_collation(FILE *cmdfd);
     285             : static void setup_privileges(FILE *cmdfd);
     286             : static void set_info_version(void);
     287             : static void setup_schema(FILE *cmdfd);
     288             : static void load_plpgsql(FILE *cmdfd);
     289             : static void vacuum_db(FILE *cmdfd);
     290             : static void make_template0(FILE *cmdfd);
     291             : static void make_postgres(FILE *cmdfd);
     292             : static void trapsig(SIGNAL_ARGS);
     293             : static void check_ok(void);
     294             : static char *escape_quotes(const char *src);
     295             : static char *escape_quotes_bki(const char *src);
     296             : static int  locale_date_order(const char *locale);
     297             : static void check_locale_name(int category, const char *locale,
     298             :                               char **canonname);
     299             : static bool check_locale_encoding(const char *locale, int user_enc);
     300             : static void setlocales(void);
     301             : static void usage(const char *progname);
     302             : void        setup_pgdata(void);
     303             : void        setup_bin_paths(const char *argv0);
     304             : void        setup_data_file_paths(void);
     305             : void        setup_locale_encoding(void);
     306             : void        setup_signals(void);
     307             : void        setup_text_search(void);
     308             : void        create_data_directory(void);
     309             : void        create_xlog_or_symlink(void);
     310             : void        warn_on_mount_point(int error);
     311             : void        initialize_data_directory(void);
     312             : 
     313             : /*
     314             :  * macros for running pipes to postgres
     315             :  */
     316             : #define PG_CMD_DECL     FILE *cmdfd
     317             : 
     318             : #define PG_CMD_OPEN(cmd) \
     319             : do { \
     320             :     cmdfd = popen_check(cmd, "w"); \
     321             :     if (cmdfd == NULL) \
     322             :         exit(1); /* message already printed by popen_check */ \
     323             : } while (0)
     324             : 
     325             : #define PG_CMD_CLOSE() \
     326             : do { \
     327             :     if (pclose_check(cmdfd)) \
     328             :         exit(1); /* message already printed by pclose_check */ \
     329             : } while (0)
     330             : 
     331             : #define PG_CMD_PUTS(line) \
     332             : do { \
     333             :     if (fputs(line, cmdfd) < 0 || fflush(cmdfd) < 0) \
     334             :         output_failed = true, output_errno = errno; \
     335             : } while (0)
     336             : 
     337             : #define PG_CMD_PRINTF(fmt, ...) \
     338             : do { \
     339             :     if (fprintf(cmdfd, fmt, __VA_ARGS__) < 0 || fflush(cmdfd) < 0) \
     340             :         output_failed = true, output_errno = errno; \
     341             : } while (0)
     342             : 
     343             : /*
     344             :  * Escape single quotes and backslashes, suitably for insertions into
     345             :  * configuration files or SQL E'' strings.
     346             :  */
     347             : static char *
     348         978 : escape_quotes(const char *src)
     349             : {
     350         978 :     char       *result = escape_single_quotes_ascii(src);
     351             : 
     352         978 :     if (!result)
     353           0 :         pg_fatal("out of memory");
     354         978 :     return result;
     355             : }
     356             : 
     357             : /*
     358             :  * Escape a field value to be inserted into the BKI data.
     359             :  * Run the value through escape_quotes (which will be inverted
     360             :  * by the backend's DeescapeQuotedString() function), then wrap
     361             :  * the value in single quotes, even if that isn't strictly necessary.
     362             :  */
     363             : static char *
     364         264 : escape_quotes_bki(const char *src)
     365             : {
     366             :     char       *result;
     367         264 :     char       *data = escape_quotes(src);
     368             :     char       *resultp;
     369             :     char       *datap;
     370             : 
     371         264 :     result = (char *) pg_malloc(strlen(data) + 3);
     372         264 :     resultp = result;
     373         264 :     *resultp++ = '\'';
     374        2066 :     for (datap = data; *datap; datap++)
     375        1802 :         *resultp++ = *datap;
     376         264 :     *resultp++ = '\'';
     377         264 :     *resultp = '\0';
     378             : 
     379         264 :     free(data);
     380         264 :     return result;
     381             : }
     382             : 
     383             : /*
     384             :  * Add an item at the end of a stringlist.
     385             :  */
     386             : static void
     387          20 : add_stringlist_item(_stringlist **listhead, const char *str)
     388             : {
     389          20 :     _stringlist *newentry = pg_malloc(sizeof(_stringlist));
     390             :     _stringlist *oldentry;
     391             : 
     392          20 :     newentry->str = pg_strdup(str);
     393          20 :     newentry->next = NULL;
     394          20 :     if (*listhead == NULL)
     395          12 :         *listhead = newentry;
     396             :     else
     397             :     {
     398          12 :         for (oldentry = *listhead; oldentry->next; oldentry = oldentry->next)
     399             :              /* skip */ ;
     400           8 :         oldentry->next = newentry;
     401             :     }
     402          20 : }
     403             : 
     404             : /*
     405             :  * Modify the array of lines, replacing "token" by "replacement"
     406             :  * the first time it occurs on each line.
     407             :  *
     408             :  * The array must be a malloc'd array of individually malloc'd strings.
     409             :  * We free any discarded strings.
     410             :  *
     411             :  * This does most of what sed was used for in the shell script, but
     412             :  * doesn't need any regexp stuff.
     413             :  */
     414             : static char **
     415        1230 : replace_token(char **lines, const char *token, const char *replacement)
     416             : {
     417             :     int         toklen,
     418             :                 replen,
     419             :                 diff;
     420             : 
     421        1230 :     toklen = strlen(token);
     422        1230 :     replen = strlen(replacement);
     423        1230 :     diff = replen - toklen;
     424             : 
     425    10568488 :     for (int i = 0; lines[i]; i++)
     426             :     {
     427             :         char       *where;
     428             :         char       *newline;
     429             :         int         pre;
     430             : 
     431             :         /* nothing to do if no change needed */
     432    10567258 :         if ((where = strstr(lines[i], token)) == NULL)
     433    10564470 :             continue;
     434             : 
     435             :         /* if we get here a change is needed - set up new line */
     436             : 
     437        2788 :         newline = (char *) pg_malloc(strlen(lines[i]) + diff + 1);
     438             : 
     439        2788 :         pre = where - lines[i];
     440             : 
     441        2788 :         memcpy(newline, lines[i], pre);
     442             : 
     443        2788 :         memcpy(newline + pre, replacement, replen);
     444             : 
     445        2788 :         strcpy(newline + pre + replen, lines[i] + pre + toklen);
     446             : 
     447        2788 :         free(lines[i]);
     448        2788 :         lines[i] = newline;
     449             :     }
     450             : 
     451        1230 :     return lines;
     452             : }
     453             : 
     454             : /*
     455             :  * Modify the array of lines, replacing the possibly-commented-out
     456             :  * assignment of parameter guc_name with a live assignment of guc_value.
     457             :  * The value will be suitably quoted.
     458             :  *
     459             :  * If mark_as_comment is true, the replacement line is prefixed with '#'.
     460             :  * This is used for fixing up cases where the effective default might not
     461             :  * match what is in postgresql.conf.sample.
     462             :  *
     463             :  * We assume there's at most one matching assignment.  If we find no match,
     464             :  * append a new line with the desired assignment.
     465             :  *
     466             :  * The array must be a malloc'd array of individually malloc'd strings.
     467             :  * We free any discarded strings.
     468             :  */
     469             : static char **
     470        1414 : replace_guc_value(char **lines, const char *guc_name, const char *guc_value,
     471             :                   bool mark_as_comment)
     472             : {
     473        1414 :     int         namelen = strlen(guc_name);
     474        1414 :     PQExpBuffer newline = createPQExpBuffer();
     475             :     int         i;
     476             : 
     477             :     /* prepare the replacement line, except for possible comment and newline */
     478        1414 :     if (mark_as_comment)
     479         328 :         appendPQExpBufferChar(newline, '#');
     480        1414 :     appendPQExpBuffer(newline, "%s = ", guc_name);
     481        1414 :     if (guc_value_requires_quotes(guc_value))
     482         554 :         appendPQExpBuffer(newline, "'%s'", escape_quotes(guc_value));
     483             :     else
     484         860 :         appendPQExpBufferStr(newline, guc_value);
     485             : 
     486      609314 :     for (i = 0; lines[i]; i++)
     487             :     {
     488             :         const char *where;
     489             :         const char *namestart;
     490             : 
     491             :         /*
     492             :          * Look for a line assigning to guc_name.  Typically it will be
     493             :          * preceded by '#', but that might not be the case if a -c switch
     494             :          * overrides a previous assignment.  We allow leading whitespace too,
     495             :          * although normally there wouldn't be any.
     496             :          */
     497      609312 :         where = lines[i];
     498     2575518 :         while (*where == '#' || isspace((unsigned char) *where))
     499     1966206 :             where++;
     500      609312 :         if (pg_strncasecmp(where, guc_name, namelen) != 0)
     501      607900 :             continue;
     502        1412 :         namestart = where;
     503        1412 :         where += namelen;
     504        2824 :         while (isspace((unsigned char) *where))
     505        1412 :             where++;
     506        1412 :         if (*where != '=')
     507           0 :             continue;
     508             : 
     509             :         /* found it -- let's use the canonical casing shown in the file */
     510        1412 :         memcpy(&newline->data[mark_as_comment ? 1 : 0], namestart, namelen);
     511             : 
     512             :         /* now append the original comment if any */
     513        1412 :         where = strrchr(where, '#');
     514        1412 :         if (where)
     515             :         {
     516             :             /*
     517             :              * We try to preserve original indentation, which is tedious.
     518             :              * oldindent and newindent are measured in de-tab-ified columns.
     519             :              */
     520             :             const char *ptr;
     521         918 :             int         oldindent = 0;
     522             :             int         newindent;
     523             : 
     524       23572 :             for (ptr = lines[i]; ptr < where; ptr++)
     525             :             {
     526       22654 :                 if (*ptr == '\t')
     527        2432 :                     oldindent += 8 - (oldindent % 8);
     528             :                 else
     529       20222 :                     oldindent++;
     530             :             }
     531             :             /* ignore the possibility of tabs in guc_value */
     532         918 :             newindent = newline->len;
     533             :             /* append appropriate tabs and spaces, forcing at least one */
     534         918 :             oldindent = Max(oldindent, newindent + 1);
     535        3356 :             while (newindent < oldindent)
     536             :             {
     537        2438 :                 int         newindent_if_tab = newindent + 8 - (newindent % 8);
     538             : 
     539        2438 :                 if (newindent_if_tab <= oldindent)
     540             :                 {
     541        2438 :                     appendPQExpBufferChar(newline, '\t');
     542        2438 :                     newindent = newindent_if_tab;
     543             :                 }
     544             :                 else
     545             :                 {
     546           0 :                     appendPQExpBufferChar(newline, ' ');
     547           0 :                     newindent++;
     548             :                 }
     549             :             }
     550             :             /* and finally append the old comment */
     551         918 :             appendPQExpBufferStr(newline, where);
     552             :             /* we'll have appended the original newline; don't add another */
     553             :         }
     554             :         else
     555         494 :             appendPQExpBufferChar(newline, '\n');
     556             : 
     557        1412 :         free(lines[i]);
     558        1412 :         lines[i] = newline->data;
     559             : 
     560        1412 :         break;                  /* assume there's only one match */
     561             :     }
     562             : 
     563        1414 :     if (lines[i] == NULL)
     564             :     {
     565             :         /*
     566             :          * No match, so append a new entry.  (We rely on the bootstrap server
     567             :          * to complain if it's not a valid GUC name.)
     568             :          */
     569           2 :         appendPQExpBufferChar(newline, '\n');
     570           2 :         lines = pg_realloc_array(lines, char *, i + 2);
     571           2 :         lines[i++] = newline->data;
     572           2 :         lines[i] = NULL;        /* keep the array null-terminated */
     573             :     }
     574             : 
     575        1414 :     free(newline);              /* but don't free newline->data */
     576             : 
     577        1414 :     return lines;
     578             : }
     579             : 
     580             : /*
     581             :  * Decide if we should quote a replacement GUC value.  We aren't too tense
     582             :  * here, but we'd like to avoid quoting simple identifiers and numbers
     583             :  * with units, which are common cases.
     584             :  */
     585             : static bool
     586        1414 : guc_value_requires_quotes(const char *guc_value)
     587             : {
     588             :     /* Don't use <ctype.h> macros here, they might accept too much */
     589             : #define LETTERS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
     590             : #define DIGITS  "0123456789"
     591             : 
     592        1414 :     if (*guc_value == '\0')
     593           0 :         return true;            /* empty string must be quoted */
     594        1414 :     if (strchr(LETTERS, *guc_value))
     595             :     {
     596         742 :         if (strspn(guc_value, LETTERS DIGITS) == strlen(guc_value))
     597         270 :             return false;       /* it's an identifier */
     598         472 :         return true;            /* nope */
     599             :     }
     600         672 :     if (strchr(DIGITS, *guc_value))
     601             :     {
     602             :         /* skip over digits */
     603         590 :         guc_value += strspn(guc_value, DIGITS);
     604             :         /* there can be zero or more unit letters after the digits */
     605         590 :         if (strspn(guc_value, LETTERS) == strlen(guc_value))
     606         590 :             return false;       /* it's a number, possibly with units */
     607           0 :         return true;            /* nope */
     608             :     }
     609          82 :     return true;                /* all else must be quoted */
     610             : }
     611             : 
     612             : /*
     613             :  * get the lines from a text file
     614             :  *
     615             :  * The result is a malloc'd array of individually malloc'd strings.
     616             :  */
     617             : static char **
     618         728 : readfile(const char *path)
     619             : {
     620             :     char      **result;
     621             :     FILE       *infile;
     622             :     StringInfoData line;
     623             :     int         maxlines;
     624             :     int         n;
     625             : 
     626         728 :     if ((infile = fopen(path, "r")) == NULL)
     627           0 :         pg_fatal("could not open file \"%s\" for reading: %m", path);
     628             : 
     629         728 :     initStringInfo(&line);
     630             : 
     631         728 :     maxlines = 1024;
     632         728 :     result = (char **) pg_malloc(maxlines * sizeof(char *));
     633             : 
     634         728 :     n = 0;
     635     1574062 :     while (pg_get_line_buf(infile, &line))
     636             :     {
     637             :         /* make sure there will be room for a trailing NULL pointer */
     638     1573334 :         if (n >= maxlines - 1)
     639             :         {
     640         648 :             maxlines *= 2;
     641         648 :             result = (char **) pg_realloc(result, maxlines * sizeof(char *));
     642             :         }
     643             : 
     644     1573334 :         result[n++] = pg_strdup(line.data);
     645             :     }
     646         728 :     result[n] = NULL;
     647             : 
     648         728 :     pfree(line.data);
     649             : 
     650         728 :     fclose(infile);
     651             : 
     652         728 :     return result;
     653             : }
     654             : 
     655             : /*
     656             :  * write an array of lines to a file
     657             :  *
     658             :  * "lines" must be a malloc'd array of individually malloc'd strings.
     659             :  * All that data is freed here.
     660             :  *
     661             :  * This is only used to write text files.  Use fopen "w" not PG_BINARY_W
     662             :  * so that the resulting configuration files are nicely editable on Windows.
     663             :  */
     664             : static void
     665         328 : writefile(char *path, char **lines)
     666             : {
     667             :     FILE       *out_file;
     668             :     char      **line;
     669             : 
     670         328 :     if ((out_file = fopen(path, "w")) == NULL)
     671           0 :         pg_fatal("could not open file \"%s\" for writing: %m", path);
     672       85446 :     for (line = lines; *line != NULL; line++)
     673             :     {
     674       85118 :         if (fputs(*line, out_file) < 0)
     675           0 :             pg_fatal("could not write file \"%s\": %m", path);
     676       85118 :         free(*line);
     677             :     }
     678         328 :     if (fclose(out_file))
     679           0 :         pg_fatal("could not close file \"%s\": %m", path);
     680         328 :     free(lines);
     681         328 : }
     682             : 
     683             : /*
     684             :  * Open a subcommand with suitable error messaging
     685             :  */
     686             : static FILE *
     687         162 : popen_check(const char *command, const char *mode)
     688             : {
     689             :     FILE       *cmdfd;
     690             : 
     691         162 :     fflush(NULL);
     692         162 :     errno = 0;
     693         162 :     cmdfd = popen(command, mode);
     694         162 :     if (cmdfd == NULL)
     695           0 :         pg_log_error("could not execute command \"%s\": %m", command);
     696         162 :     return cmdfd;
     697             : }
     698             : 
     699             : /*
     700             :  * clean up any files we created on failure
     701             :  * if we created the data directory remove it too
     702             :  */
     703             : static void
     704         106 : cleanup_directories_atexit(void)
     705             : {
     706         106 :     if (success)
     707          76 :         return;
     708             : 
     709          30 :     if (!noclean)
     710             :     {
     711          30 :         if (made_new_pgdata)
     712             :         {
     713          10 :             pg_log_info("removing data directory \"%s\"", pg_data);
     714          10 :             if (!rmtree(pg_data, true))
     715           0 :                 pg_log_error("failed to remove data directory");
     716             :         }
     717          20 :         else if (found_existing_pgdata)
     718             :         {
     719           0 :             pg_log_info("removing contents of data directory \"%s\"",
     720             :                         pg_data);
     721           0 :             if (!rmtree(pg_data, false))
     722           0 :                 pg_log_error("failed to remove contents of data directory");
     723             :         }
     724             : 
     725          30 :         if (made_new_xlogdir)
     726             :         {
     727           0 :             pg_log_info("removing WAL directory \"%s\"", xlog_dir);
     728           0 :             if (!rmtree(xlog_dir, true))
     729           0 :                 pg_log_error("failed to remove WAL directory");
     730             :         }
     731          30 :         else if (found_existing_xlogdir)
     732             :         {
     733           0 :             pg_log_info("removing contents of WAL directory \"%s\"", xlog_dir);
     734           0 :             if (!rmtree(xlog_dir, false))
     735           0 :                 pg_log_error("failed to remove contents of WAL directory");
     736             :         }
     737             :         /* otherwise died during startup, do nothing! */
     738             :     }
     739             :     else
     740             :     {
     741           0 :         if (made_new_pgdata || found_existing_pgdata)
     742           0 :             pg_log_info("data directory \"%s\" not removed at user's request",
     743             :                         pg_data);
     744             : 
     745           0 :         if (made_new_xlogdir || found_existing_xlogdir)
     746           0 :             pg_log_info("WAL directory \"%s\" not removed at user's request",
     747             :                         xlog_dir);
     748             :     }
     749             : }
     750             : 
     751             : /*
     752             :  * find the current user
     753             :  *
     754             :  * on unix make sure it isn't root
     755             :  */
     756             : static char *
     757         100 : get_id(void)
     758             : {
     759             :     const char *username;
     760             : 
     761             : #ifndef WIN32
     762         100 :     if (geteuid() == 0)         /* 0 is root's uid */
     763             :     {
     764           0 :         pg_log_error("cannot be run as root");
     765           0 :         pg_log_error_hint("Please log in (using, e.g., \"su\") as the (unprivileged) user that will own the server process.");
     766           0 :         exit(1);
     767             :     }
     768             : #endif
     769             : 
     770         100 :     username = get_user_name_or_exit(progname);
     771             : 
     772         100 :     return pg_strdup(username);
     773             : }
     774             : 
     775             : static char *
     776          82 : encodingid_to_string(int enc)
     777             : {
     778             :     char        result[20];
     779             : 
     780          82 :     sprintf(result, "%d", enc);
     781          82 :     return pg_strdup(result);
     782             : }
     783             : 
     784             : /*
     785             :  * get the encoding id for a given encoding name
     786             :  */
     787             : static int
     788          32 : get_encoding_id(const char *encoding_name)
     789             : {
     790             :     int         enc;
     791             : 
     792          32 :     if (encoding_name && *encoding_name)
     793             :     {
     794          32 :         if ((enc = pg_valid_server_encoding(encoding_name)) >= 0)
     795          32 :             return enc;
     796             :     }
     797           0 :     pg_fatal("\"%s\" is not a valid server encoding name",
     798             :              encoding_name ? encoding_name : "(null)");
     799             : }
     800             : 
     801             : /*
     802             :  * Support for determining the best default text search configuration.
     803             :  * We key this off the first part of LC_CTYPE (ie, the language name).
     804             :  */
     805             : struct tsearch_config_match
     806             : {
     807             :     const char *tsconfname;
     808             :     const char *langname;
     809             : };
     810             : 
     811             : static const struct tsearch_config_match tsearch_config_languages[] =
     812             : {
     813             :     {"arabic", "ar"},
     814             :     {"arabic", "Arabic"},
     815             :     {"armenian", "hy"},
     816             :     {"armenian", "Armenian"},
     817             :     {"basque", "eu"},
     818             :     {"basque", "Basque"},
     819             :     {"catalan", "ca"},
     820             :     {"catalan", "Catalan"},
     821             :     {"danish", "da"},
     822             :     {"danish", "Danish"},
     823             :     {"dutch", "nl"},
     824             :     {"dutch", "Dutch"},
     825             :     {"english", "C"},
     826             :     {"english", "POSIX"},
     827             :     {"english", "en"},
     828             :     {"english", "English"},
     829             :     {"finnish", "fi"},
     830             :     {"finnish", "Finnish"},
     831             :     {"french", "fr"},
     832             :     {"french", "French"},
     833             :     {"german", "de"},
     834             :     {"german", "German"},
     835             :     {"greek", "el"},
     836             :     {"greek", "Greek"},
     837             :     {"hindi", "hi"},
     838             :     {"hindi", "Hindi"},
     839             :     {"hungarian", "hu"},
     840             :     {"hungarian", "Hungarian"},
     841             :     {"indonesian", "id"},
     842             :     {"indonesian", "Indonesian"},
     843             :     {"irish", "ga"},
     844             :     {"irish", "Irish"},
     845             :     {"italian", "it"},
     846             :     {"italian", "Italian"},
     847             :     {"lithuanian", "lt"},
     848             :     {"lithuanian", "Lithuanian"},
     849             :     {"nepali", "ne"},
     850             :     {"nepali", "Nepali"},
     851             :     {"norwegian", "no"},
     852             :     {"norwegian", "Norwegian"},
     853             :     {"portuguese", "pt"},
     854             :     {"portuguese", "Portuguese"},
     855             :     {"romanian", "ro"},
     856             :     {"russian", "ru"},
     857             :     {"russian", "Russian"},
     858             :     {"serbian", "sr"},
     859             :     {"serbian", "Serbian"},
     860             :     {"spanish", "es"},
     861             :     {"spanish", "Spanish"},
     862             :     {"swedish", "sv"},
     863             :     {"swedish", "Swedish"},
     864             :     {"tamil", "ta"},
     865             :     {"tamil", "Tamil"},
     866             :     {"turkish", "tr"},
     867             :     {"turkish", "Turkish"},
     868             :     {"yiddish", "yi"},
     869             :     {"yiddish", "Yiddish"},
     870             :     {NULL, NULL}                /* end marker */
     871             : };
     872             : 
     873             : /*
     874             :  * Look for a text search configuration matching lc_ctype, and return its
     875             :  * name; return NULL if no match.
     876             :  */
     877             : static const char *
     878          88 : find_matching_ts_config(const char *lc_type)
     879             : {
     880             :     int         i;
     881             :     char       *langname,
     882             :                *ptr;
     883             : 
     884             :     /*
     885             :      * Convert lc_ctype to a language name by stripping everything after an
     886             :      * underscore (usual case) or a hyphen (Windows "locale name"; see
     887             :      * comments at IsoLocaleName()).
     888             :      *
     889             :      * XXX Should ' ' be a stop character?  This would select "norwegian" for
     890             :      * the Windows locale "Norwegian (Nynorsk)_Norway.1252".  If we do so, we
     891             :      * should also accept the "nn" and "nb" Unix locales.
     892             :      *
     893             :      * Just for paranoia, we also stop at '.' or '@'.
     894             :      */
     895          88 :     if (lc_type == NULL)
     896           0 :         langname = pg_strdup("");
     897             :     else
     898             :     {
     899          88 :         ptr = langname = pg_strdup(lc_type);
     900         226 :         while (*ptr &&
     901         188 :                *ptr != '_' && *ptr != '-' && *ptr != '.' && *ptr != '@')
     902         138 :             ptr++;
     903          88 :         *ptr = '\0';
     904             :     }
     905             : 
     906        1244 :     for (i = 0; tsearch_config_languages[i].tsconfname; i++)
     907             :     {
     908        1244 :         if (pg_strcasecmp(tsearch_config_languages[i].langname, langname) == 0)
     909             :         {
     910          88 :             free(langname);
     911          88 :             return tsearch_config_languages[i].tsconfname;
     912             :         }
     913             :     }
     914             : 
     915           0 :     free(langname);
     916           0 :     return NULL;
     917             : }
     918             : 
     919             : 
     920             : /*
     921             :  * set name of given input file variable under data directory
     922             :  */
     923             : static void
     924         980 : set_input(char **dest, const char *filename)
     925             : {
     926         980 :     *dest = psprintf("%s/%s", share_path, filename);
     927         980 : }
     928             : 
     929             : /*
     930             :  * check that given input file exists
     931             :  */
     932             : static void
     933         980 : check_input(char *path)
     934             : {
     935             :     struct stat statbuf;
     936             : 
     937         980 :     if (stat(path, &statbuf) != 0)
     938             :     {
     939           0 :         if (errno == ENOENT)
     940             :         {
     941           0 :             pg_log_error("file \"%s\" does not exist", path);
     942           0 :             pg_log_error_hint("This might mean you have a corrupted installation or identified the wrong directory with the invocation option -L.");
     943             :         }
     944             :         else
     945             :         {
     946           0 :             pg_log_error("could not access file \"%s\": %m", path);
     947           0 :             pg_log_error_hint("This might mean you have a corrupted installation or identified the wrong directory with the invocation option -L.");
     948             :         }
     949           0 :         exit(1);
     950             :     }
     951         980 :     if (!S_ISREG(statbuf.st_mode))
     952             :     {
     953           0 :         pg_log_error("file \"%s\" is not a regular file", path);
     954           0 :         pg_log_error_hint("This might mean you have a corrupted installation or identified the wrong directory with the invocation option -L.");
     955           0 :         exit(1);
     956             :     }
     957         980 : }
     958             : 
     959             : /*
     960             :  * write out the PG_VERSION file in the data dir, or its subdirectory
     961             :  * if extrapath is not NULL
     962             :  */
     963             : static void
     964         162 : write_version_file(const char *extrapath)
     965             : {
     966             :     FILE       *version_file;
     967             :     char       *path;
     968             : 
     969         162 :     if (extrapath == NULL)
     970          82 :         path = psprintf("%s/PG_VERSION", pg_data);
     971             :     else
     972          80 :         path = psprintf("%s/%s/PG_VERSION", pg_data, extrapath);
     973             : 
     974         162 :     if ((version_file = fopen(path, PG_BINARY_W)) == NULL)
     975           0 :         pg_fatal("could not open file \"%s\" for writing: %m", path);
     976         324 :     if (fprintf(version_file, "%s\n", PG_MAJORVERSION) < 0 ||
     977         162 :         fclose(version_file))
     978           0 :         pg_fatal("could not write file \"%s\": %m", path);
     979         162 :     free(path);
     980         162 : }
     981             : 
     982             : /*
     983             :  * set up an empty config file so we can check config settings by launching
     984             :  * a test backend
     985             :  */
     986             : static void
     987          82 : set_null_conf(void)
     988             : {
     989             :     FILE       *conf_file;
     990             :     char       *path;
     991             : 
     992          82 :     path = psprintf("%s/postgresql.conf", pg_data);
     993          82 :     conf_file = fopen(path, PG_BINARY_W);
     994          82 :     if (conf_file == NULL)
     995           0 :         pg_fatal("could not open file \"%s\" for writing: %m", path);
     996          82 :     if (fclose(conf_file))
     997           0 :         pg_fatal("could not write file \"%s\": %m", path);
     998          82 :     free(path);
     999          82 : }
    1000             : 
    1001             : /*
    1002             :  * Determine which dynamic shared memory implementation should be used on
    1003             :  * this platform.  POSIX shared memory is preferable because the default
    1004             :  * allocation limits are much higher than the limits for System V on most
    1005             :  * systems that support both, but the fact that a platform has shm_open
    1006             :  * doesn't guarantee that that call will succeed when attempted.  So, we
    1007             :  * attempt to reproduce what the postmaster will do when allocating a POSIX
    1008             :  * segment in dsm_impl.c; if it doesn't work, we assume it won't work for
    1009             :  * the postmaster either, and configure the cluster for System V shared
    1010             :  * memory instead.
    1011             :  *
    1012             :  * We avoid choosing Solaris's implementation of shm_open() by default.  It
    1013             :  * can sleep and fail spuriously under contention.
    1014             :  */
    1015             : static const char *
    1016          82 : choose_dsm_implementation(void)
    1017             : {
    1018             : #if defined(HAVE_SHM_OPEN) && !defined(__sun__)
    1019          82 :     int         ntries = 10;
    1020             :     pg_prng_state prng_state;
    1021             : 
    1022             :     /* Initialize prng; this function is its only user in this program. */
    1023          82 :     pg_prng_seed(&prng_state, (uint64) (getpid() ^ time(NULL)));
    1024             : 
    1025          82 :     while (ntries > 0)
    1026             :     {
    1027             :         uint32      handle;
    1028             :         char        name[64];
    1029             :         int         fd;
    1030             : 
    1031          82 :         handle = pg_prng_uint32(&prng_state);
    1032          82 :         snprintf(name, 64, "/PostgreSQL.%u", handle);
    1033          82 :         if ((fd = shm_open(name, O_CREAT | O_RDWR | O_EXCL, 0600)) != -1)
    1034             :         {
    1035          82 :             close(fd);
    1036          82 :             shm_unlink(name);
    1037          82 :             return "posix";
    1038             :         }
    1039           0 :         if (errno != EEXIST)
    1040           0 :             break;
    1041           0 :         --ntries;
    1042             :     }
    1043             : #endif
    1044             : 
    1045             : #ifdef WIN32
    1046             :     return "windows";
    1047             : #else
    1048           0 :     return "sysv";
    1049             : #endif
    1050             : }
    1051             : 
    1052             : /*
    1053             :  * Determine platform-specific config settings
    1054             :  *
    1055             :  * Use reasonable values if kernel will let us, else scale back.
    1056             :  */
    1057             : static void
    1058          82 : test_config_settings(void)
    1059             : {
    1060             :     /*
    1061             :      * This macro defines the minimum shared_buffers we want for a given
    1062             :      * max_connections value. The arrays show the settings to try.
    1063             :      */
    1064             : #define MIN_BUFS_FOR_CONNS(nconns)  ((nconns) * 10)
    1065             : 
    1066             :     static const int trial_conns[] = {
    1067             :         100, 50, 40, 30, 20
    1068             :     };
    1069             :     static const int trial_bufs[] = {
    1070             :         16384, 8192, 4096, 3584, 3072, 2560, 2048, 1536,
    1071             :         1000, 900, 800, 700, 600, 500,
    1072             :         400, 300, 200, 100, 50
    1073             :     };
    1074             : 
    1075          82 :     const int   connslen = sizeof(trial_conns) / sizeof(int);
    1076          82 :     const int   bufslen = sizeof(trial_bufs) / sizeof(int);
    1077             :     int         i,
    1078             :                 test_conns,
    1079             :                 test_buffs,
    1080          82 :                 ok_buffers = 0;
    1081             : 
    1082             :     /*
    1083             :      * Need to determine working DSM implementation first so that subsequent
    1084             :      * tests don't fail because DSM setting doesn't work.
    1085             :      */
    1086          82 :     printf(_("selecting dynamic shared memory implementation ... "));
    1087          82 :     fflush(stdout);
    1088          82 :     dynamic_shared_memory_type = choose_dsm_implementation();
    1089          82 :     printf("%s\n", dynamic_shared_memory_type);
    1090             : 
    1091             :     /*
    1092             :      * Probe for max_connections before shared_buffers, since it is subject to
    1093             :      * more constraints than shared_buffers.
    1094             :      */
    1095          82 :     printf(_("selecting default \"max_connections\" ... "));
    1096          82 :     fflush(stdout);
    1097             : 
    1098          92 :     for (i = 0; i < connslen; i++)
    1099             :     {
    1100          90 :         test_conns = trial_conns[i];
    1101          90 :         test_buffs = MIN_BUFS_FOR_CONNS(test_conns);
    1102             : 
    1103          90 :         if (test_specific_config_settings(test_conns, test_buffs))
    1104             :         {
    1105          80 :             ok_buffers = test_buffs;
    1106          80 :             break;
    1107             :         }
    1108             :     }
    1109          82 :     if (i >= connslen)
    1110           2 :         i = connslen - 1;
    1111          82 :     n_connections = trial_conns[i];
    1112             : 
    1113          82 :     printf("%d\n", n_connections);
    1114             : 
    1115          82 :     printf(_("selecting default \"shared_buffers\" ... "));
    1116          82 :     fflush(stdout);
    1117             : 
    1118         120 :     for (i = 0; i < bufslen; i++)
    1119             :     {
    1120             :         /* Use same amount of memory, independent of BLCKSZ */
    1121         118 :         test_buffs = (trial_bufs[i] * 8192) / BLCKSZ;
    1122         118 :         if (test_buffs <= ok_buffers)
    1123             :         {
    1124           0 :             test_buffs = ok_buffers;
    1125           0 :             break;
    1126             :         }
    1127             : 
    1128         118 :         if (test_specific_config_settings(n_connections, test_buffs))
    1129          80 :             break;
    1130             :     }
    1131          82 :     n_buffers = test_buffs;
    1132             : 
    1133          82 :     if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
    1134          80 :         printf("%dMB\n", (n_buffers * (BLCKSZ / 1024)) / 1024);
    1135             :     else
    1136           2 :         printf("%dkB\n", n_buffers * (BLCKSZ / 1024));
    1137             : 
    1138          82 :     printf(_("selecting default time zone ... "));
    1139          82 :     fflush(stdout);
    1140          82 :     default_timezone = select_default_timezone(share_path);
    1141          82 :     printf("%s\n", default_timezone ? default_timezone : "GMT");
    1142          82 : }
    1143             : 
    1144             : /*
    1145             :  * Test a specific combination of configuration settings.
    1146             :  */
    1147             : static bool
    1148         208 : test_specific_config_settings(int test_conns, int test_buffs)
    1149             : {
    1150             :     PQExpBufferData cmd;
    1151             :     _stringlist *gnames,
    1152             :                *gvalues;
    1153             :     int         status;
    1154             : 
    1155         208 :     initPQExpBuffer(&cmd);
    1156             : 
    1157             :     /* Set up the test postmaster invocation */
    1158         208 :     printfPQExpBuffer(&cmd,
    1159             :                       "\"%s\" --check %s %s "
    1160             :                       "-c max_connections=%d "
    1161             :                       "-c shared_buffers=%d "
    1162             :                       "-c dynamic_shared_memory_type=%s",
    1163             :                       backend_exec, boot_options, extra_options,
    1164             :                       test_conns, test_buffs,
    1165             :                       dynamic_shared_memory_type);
    1166             : 
    1167             :     /* Add any user-given setting overrides */
    1168         272 :     for (gnames = extra_guc_names, gvalues = extra_guc_values;
    1169             :          gnames != NULL;        /* assume lists have the same length */
    1170          64 :          gnames = gnames->next, gvalues = gvalues->next)
    1171             :     {
    1172          64 :         appendPQExpBuffer(&cmd, " -c %s=", gnames->str);
    1173          64 :         appendShellString(&cmd, gvalues->str);
    1174             :     }
    1175             : 
    1176         208 :     appendPQExpBuffer(&cmd,
    1177             :                       " < \"%s\" > \"%s\" 2>&1",
    1178             :                       DEVNULL, DEVNULL);
    1179             : 
    1180         208 :     fflush(NULL);
    1181         208 :     status = system(cmd.data);
    1182             : 
    1183         208 :     termPQExpBuffer(&cmd);
    1184             : 
    1185         208 :     return (status == 0);
    1186             : }
    1187             : 
    1188             : /*
    1189             :  * Calculate the default wal_size with a "pretty" unit.
    1190             :  */
    1191             : static char *
    1192         164 : pretty_wal_size(int segment_count)
    1193             : {
    1194         164 :     int         sz = wal_segment_size_mb * segment_count;
    1195         164 :     char       *result = pg_malloc(14);
    1196             : 
    1197         164 :     if ((sz % 1024) == 0)
    1198          72 :         snprintf(result, 14, "%dGB", sz / 1024);
    1199             :     else
    1200          92 :         snprintf(result, 14, "%dMB", sz);
    1201             : 
    1202         164 :     return result;
    1203             : }
    1204             : 
    1205             : /*
    1206             :  * set up all the config files
    1207             :  */
    1208             : static void
    1209          82 : setup_config(void)
    1210             : {
    1211             :     char      **conflines;
    1212             :     char        repltok[MAXPGPATH];
    1213             :     char        path[MAXPGPATH];
    1214             :     _stringlist *gnames,
    1215             :                *gvalues;
    1216             : 
    1217          82 :     fputs(_("creating configuration files ... "), stdout);
    1218          82 :     fflush(stdout);
    1219             : 
    1220             :     /* postgresql.conf */
    1221             : 
    1222          82 :     conflines = readfile(conf_file);
    1223             : 
    1224          82 :     snprintf(repltok, sizeof(repltok), "%d", n_connections);
    1225          82 :     conflines = replace_guc_value(conflines, "max_connections",
    1226             :                                   repltok, false);
    1227             : 
    1228          82 :     if ((n_buffers * (BLCKSZ / 1024)) % 1024 == 0)
    1229          80 :         snprintf(repltok, sizeof(repltok), "%dMB",
    1230          80 :                  (n_buffers * (BLCKSZ / 1024)) / 1024);
    1231             :     else
    1232           2 :         snprintf(repltok, sizeof(repltok), "%dkB",
    1233             :                  n_buffers * (BLCKSZ / 1024));
    1234          82 :     conflines = replace_guc_value(conflines, "shared_buffers",
    1235             :                                   repltok, false);
    1236             : 
    1237          82 :     conflines = replace_guc_value(conflines, "lc_messages",
    1238             :                                   lc_messages, false);
    1239             : 
    1240          82 :     conflines = replace_guc_value(conflines, "lc_monetary",
    1241             :                                   lc_monetary, false);
    1242             : 
    1243          82 :     conflines = replace_guc_value(conflines, "lc_numeric",
    1244             :                                   lc_numeric, false);
    1245             : 
    1246          82 :     conflines = replace_guc_value(conflines, "lc_time",
    1247             :                                   lc_time, false);
    1248             : 
    1249          82 :     switch (locale_date_order(lc_time))
    1250             :     {
    1251           0 :         case DATEORDER_YMD:
    1252           0 :             strcpy(repltok, "iso, ymd");
    1253           0 :             break;
    1254           0 :         case DATEORDER_DMY:
    1255           0 :             strcpy(repltok, "iso, dmy");
    1256           0 :             break;
    1257          82 :         case DATEORDER_MDY:
    1258             :         default:
    1259          82 :             strcpy(repltok, "iso, mdy");
    1260          82 :             break;
    1261             :     }
    1262          82 :     conflines = replace_guc_value(conflines, "datestyle",
    1263             :                                   repltok, false);
    1264             : 
    1265          82 :     snprintf(repltok, sizeof(repltok), "pg_catalog.%s",
    1266             :              default_text_search_config);
    1267          82 :     conflines = replace_guc_value(conflines, "default_text_search_config",
    1268             :                                   repltok, false);
    1269             : 
    1270          82 :     if (default_timezone)
    1271             :     {
    1272          82 :         conflines = replace_guc_value(conflines, "timezone",
    1273             :                                       default_timezone, false);
    1274          82 :         conflines = replace_guc_value(conflines, "log_timezone",
    1275             :                                       default_timezone, false);
    1276             :     }
    1277             : 
    1278          82 :     conflines = replace_guc_value(conflines, "dynamic_shared_memory_type",
    1279             :                                   dynamic_shared_memory_type, false);
    1280             : 
    1281             :     /* Caution: these depend on wal_segment_size_mb, they're not constants */
    1282          82 :     conflines = replace_guc_value(conflines, "min_wal_size",
    1283          82 :                                   pretty_wal_size(DEFAULT_MIN_WAL_SEGS), false);
    1284             : 
    1285          82 :     conflines = replace_guc_value(conflines, "max_wal_size",
    1286          82 :                                   pretty_wal_size(DEFAULT_MAX_WAL_SEGS), false);
    1287             : 
    1288             :     /*
    1289             :      * Fix up various entries to match the true compile-time defaults.  Since
    1290             :      * these are indeed defaults, keep the postgresql.conf lines commented.
    1291             :      */
    1292          82 :     conflines = replace_guc_value(conflines, "unix_socket_directories",
    1293             :                                   DEFAULT_PGSOCKET_DIR, true);
    1294             : 
    1295          82 :     conflines = replace_guc_value(conflines, "port",
    1296             :                                   DEF_PGPORT_STR, true);
    1297             : 
    1298             : #if DEFAULT_BACKEND_FLUSH_AFTER > 0
    1299             :     snprintf(repltok, sizeof(repltok), "%dkB",
    1300             :              DEFAULT_BACKEND_FLUSH_AFTER * (BLCKSZ / 1024));
    1301             :     conflines = replace_guc_value(conflines, "backend_flush_after",
    1302             :                                   repltok, true);
    1303             : #endif
    1304             : 
    1305             : #if DEFAULT_BGWRITER_FLUSH_AFTER > 0
    1306          82 :     snprintf(repltok, sizeof(repltok), "%dkB",
    1307             :              DEFAULT_BGWRITER_FLUSH_AFTER * (BLCKSZ / 1024));
    1308          82 :     conflines = replace_guc_value(conflines, "bgwriter_flush_after",
    1309             :                                   repltok, true);
    1310             : #endif
    1311             : 
    1312             : #if DEFAULT_CHECKPOINT_FLUSH_AFTER > 0
    1313          82 :     snprintf(repltok, sizeof(repltok), "%dkB",
    1314             :              DEFAULT_CHECKPOINT_FLUSH_AFTER * (BLCKSZ / 1024));
    1315          82 :     conflines = replace_guc_value(conflines, "checkpoint_flush_after",
    1316             :                                   repltok, true);
    1317             : #endif
    1318             : 
    1319             : #ifndef USE_PREFETCH
    1320             :     conflines = replace_guc_value(conflines, "effective_io_concurrency",
    1321             :                                   "0", true);
    1322             : #endif
    1323             : 
    1324             : #ifdef WIN32
    1325             :     conflines = replace_guc_value(conflines, "update_process_title",
    1326             :                                   "off", true);
    1327             : #endif
    1328             : 
    1329             :     /*
    1330             :      * Change password_encryption setting to md5 if md5 was chosen as an
    1331             :      * authentication method, unless scram-sha-256 was also chosen.
    1332             :      */
    1333          82 :     if ((strcmp(authmethodlocal, "md5") == 0 &&
    1334           0 :          strcmp(authmethodhost, "scram-sha-256") != 0) ||
    1335          82 :         (strcmp(authmethodhost, "md5") == 0 &&
    1336           0 :          strcmp(authmethodlocal, "scram-sha-256") != 0))
    1337             :     {
    1338           0 :         conflines = replace_guc_value(conflines, "password_encryption",
    1339             :                                       "md5", false);
    1340             :     }
    1341             : 
    1342             :     /*
    1343             :      * If group access has been enabled for the cluster then it makes sense to
    1344             :      * ensure that the log files also allow group access.  Otherwise a backup
    1345             :      * from a user in the group would fail if the log files were not
    1346             :      * relocated.
    1347             :      */
    1348          82 :     if (pg_dir_create_mode == PG_DIR_MODE_GROUP)
    1349             :     {
    1350          10 :         conflines = replace_guc_value(conflines, "log_file_mode",
    1351             :                                       "0640", false);
    1352             :     }
    1353             : 
    1354             :     /*
    1355             :      * Now replace anything that's overridden via -c switches.
    1356             :      */
    1357          92 :     for (gnames = extra_guc_names, gvalues = extra_guc_values;
    1358             :          gnames != NULL;        /* assume lists have the same length */
    1359          10 :          gnames = gnames->next, gvalues = gvalues->next)
    1360             :     {
    1361          10 :         conflines = replace_guc_value(conflines, gnames->str,
    1362          10 :                                       gvalues->str, false);
    1363             :     }
    1364             : 
    1365             :     /* ... and write out the finished postgresql.conf file */
    1366          82 :     snprintf(path, sizeof(path), "%s/postgresql.conf", pg_data);
    1367             : 
    1368          82 :     writefile(path, conflines);
    1369          82 :     if (chmod(path, pg_file_create_mode) != 0)
    1370           0 :         pg_fatal("could not change permissions of \"%s\": %m", path);
    1371             : 
    1372             : 
    1373             :     /* postgresql.auto.conf */
    1374             : 
    1375          82 :     conflines = pg_malloc_array(char *, 3);
    1376          82 :     conflines[0] = pg_strdup("# Do not edit this file manually!\n");
    1377          82 :     conflines[1] = pg_strdup("# It will be overwritten by the ALTER SYSTEM command.\n");
    1378          82 :     conflines[2] = NULL;
    1379             : 
    1380          82 :     sprintf(path, "%s/postgresql.auto.conf", pg_data);
    1381             : 
    1382          82 :     writefile(path, conflines);
    1383          82 :     if (chmod(path, pg_file_create_mode) != 0)
    1384           0 :         pg_fatal("could not change permissions of \"%s\": %m", path);
    1385             : 
    1386             : 
    1387             :     /* pg_hba.conf */
    1388             : 
    1389          82 :     conflines = readfile(hba_file);
    1390             : 
    1391          82 :     conflines = replace_token(conflines, "@remove-line-for-nolocal@", "");
    1392             : 
    1393             : 
    1394             :     /*
    1395             :      * Probe to see if there is really any platform support for IPv6, and
    1396             :      * comment out the relevant pg_hba line if not.  This avoids runtime
    1397             :      * warnings if getaddrinfo doesn't actually cope with IPv6.  Particularly
    1398             :      * useful on Windows, where executables built on a machine with IPv6 may
    1399             :      * have to run on a machine without.
    1400             :      */
    1401             :     {
    1402             :         struct addrinfo *gai_result;
    1403             :         struct addrinfo hints;
    1404          82 :         int         err = 0;
    1405             : 
    1406             : #ifdef WIN32
    1407             :         /* need to call WSAStartup before calling getaddrinfo */
    1408             :         WSADATA     wsaData;
    1409             : 
    1410             :         err = WSAStartup(MAKEWORD(2, 2), &wsaData);
    1411             : #endif
    1412             : 
    1413             :         /* for best results, this code should match parse_hba_line() */
    1414          82 :         hints.ai_flags = AI_NUMERICHOST;
    1415          82 :         hints.ai_family = AF_UNSPEC;
    1416          82 :         hints.ai_socktype = 0;
    1417          82 :         hints.ai_protocol = 0;
    1418          82 :         hints.ai_addrlen = 0;
    1419          82 :         hints.ai_canonname = NULL;
    1420          82 :         hints.ai_addr = NULL;
    1421          82 :         hints.ai_next = NULL;
    1422             : 
    1423         164 :         if (err != 0 ||
    1424          82 :             getaddrinfo("::1", NULL, &hints, &gai_result) != 0)
    1425             :         {
    1426           0 :             conflines = replace_token(conflines,
    1427             :                                       "host    all             all             ::1",
    1428             :                                       "#host    all             all             ::1");
    1429           0 :             conflines = replace_token(conflines,
    1430             :                                       "host    replication     all             ::1",
    1431             :                                       "#host    replication     all             ::1");
    1432             :         }
    1433             :     }
    1434             : 
    1435             :     /* Replace default authentication methods */
    1436          82 :     conflines = replace_token(conflines,
    1437             :                               "@authmethodhost@",
    1438             :                               authmethodhost);
    1439          82 :     conflines = replace_token(conflines,
    1440             :                               "@authmethodlocal@",
    1441             :                               authmethodlocal);
    1442             : 
    1443          82 :     conflines = replace_token(conflines,
    1444             :                               "@authcomment@",
    1445          82 :                               (strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
    1446             : 
    1447          82 :     snprintf(path, sizeof(path), "%s/pg_hba.conf", pg_data);
    1448             : 
    1449          82 :     writefile(path, conflines);
    1450          82 :     if (chmod(path, pg_file_create_mode) != 0)
    1451           0 :         pg_fatal("could not change permissions of \"%s\": %m", path);
    1452             : 
    1453             : 
    1454             :     /* pg_ident.conf */
    1455             : 
    1456          82 :     conflines = readfile(ident_file);
    1457             : 
    1458          82 :     snprintf(path, sizeof(path), "%s/pg_ident.conf", pg_data);
    1459             : 
    1460          82 :     writefile(path, conflines);
    1461          82 :     if (chmod(path, pg_file_create_mode) != 0)
    1462           0 :         pg_fatal("could not change permissions of \"%s\": %m", path);
    1463             : 
    1464          82 :     check_ok();
    1465          82 : }
    1466             : 
    1467             : 
    1468             : /*
    1469             :  * run the BKI script in bootstrap mode to create template1
    1470             :  */
    1471             : static void
    1472          82 : bootstrap_template1(void)
    1473             : {
    1474             :     PG_CMD_DECL;
    1475             :     PQExpBufferData cmd;
    1476             :     char      **line;
    1477             :     char      **bki_lines;
    1478             :     char        headerline[MAXPGPATH];
    1479             :     char        buf[64];
    1480             : 
    1481          82 :     printf(_("running bootstrap script ... "));
    1482          82 :     fflush(stdout);
    1483             : 
    1484          82 :     bki_lines = readfile(bki_file);
    1485             : 
    1486             :     /* Check that bki file appears to be of the right version */
    1487             : 
    1488          82 :     snprintf(headerline, sizeof(headerline), "# PostgreSQL %s\n",
    1489             :              PG_MAJORVERSION);
    1490             : 
    1491          82 :     if (strcmp(headerline, *bki_lines) != 0)
    1492             :     {
    1493           0 :         pg_log_error("input file \"%s\" does not belong to PostgreSQL %s",
    1494             :                      bki_file, PG_VERSION);
    1495           0 :         pg_log_error_hint("Specify the correct path using the option -L.");
    1496           0 :         exit(1);
    1497             :     }
    1498             : 
    1499             :     /* Substitute for various symbols used in the BKI file */
    1500             : 
    1501          82 :     sprintf(buf, "%d", NAMEDATALEN);
    1502          82 :     bki_lines = replace_token(bki_lines, "NAMEDATALEN", buf);
    1503             : 
    1504          82 :     sprintf(buf, "%d", (int) sizeof(Pointer));
    1505          82 :     bki_lines = replace_token(bki_lines, "SIZEOF_POINTER", buf);
    1506             : 
    1507          82 :     bki_lines = replace_token(bki_lines, "ALIGNOF_POINTER",
    1508             :                               (sizeof(Pointer) == 4) ? "i" : "d");
    1509             : 
    1510          82 :     bki_lines = replace_token(bki_lines, "FLOAT8PASSBYVAL",
    1511             :                               FLOAT8PASSBYVAL ? "true" : "false");
    1512             : 
    1513          82 :     bki_lines = replace_token(bki_lines, "POSTGRES",
    1514          82 :                               escape_quotes_bki(username));
    1515             : 
    1516          82 :     bki_lines = replace_token(bki_lines, "ENCODING",
    1517          82 :                               encodingid_to_string(encodingid));
    1518             : 
    1519          82 :     bki_lines = replace_token(bki_lines, "LC_COLLATE",
    1520          82 :                               escape_quotes_bki(lc_collate));
    1521             : 
    1522          82 :     bki_lines = replace_token(bki_lines, "LC_CTYPE",
    1523          82 :                               escape_quotes_bki(lc_ctype));
    1524             : 
    1525          82 :     bki_lines = replace_token(bki_lines, "DATLOCALE",
    1526          82 :                               datlocale ? escape_quotes_bki(datlocale) : "_null_");
    1527             : 
    1528          82 :     bki_lines = replace_token(bki_lines, "ICU_RULES",
    1529          82 :                               icu_rules ? escape_quotes_bki(icu_rules) : "_null_");
    1530             : 
    1531          82 :     sprintf(buf, "%c", locale_provider);
    1532          82 :     bki_lines = replace_token(bki_lines, "LOCALE_PROVIDER", buf);
    1533             : 
    1534             :     /* Also ensure backend isn't confused by this environment var: */
    1535          82 :     unsetenv("PGCLIENTENCODING");
    1536             : 
    1537          82 :     initPQExpBuffer(&cmd);
    1538             : 
    1539          82 :     printfPQExpBuffer(&cmd, "\"%s\" --boot %s %s", backend_exec, boot_options, extra_options);
    1540          82 :     appendPQExpBuffer(&cmd, " -X %d", wal_segment_size_mb * (1024 * 1024));
    1541          82 :     if (data_checksums)
    1542           2 :         appendPQExpBuffer(&cmd, " -k");
    1543          82 :     if (debug)
    1544           0 :         appendPQExpBuffer(&cmd, " -d 5");
    1545             : 
    1546             : 
    1547          82 :     PG_CMD_OPEN(cmd.data);
    1548             : 
    1549      957104 :     for (line = bki_lines; *line != NULL; line++)
    1550             :     {
    1551      957022 :         PG_CMD_PUTS(*line);
    1552      957022 :         free(*line);
    1553             :     }
    1554             : 
    1555          82 :     PG_CMD_CLOSE();
    1556             : 
    1557          80 :     termPQExpBuffer(&cmd);
    1558          80 :     free(bki_lines);
    1559             : 
    1560          80 :     check_ok();
    1561          80 : }
    1562             : 
    1563             : /*
    1564             :  * set up the shadow password table
    1565             :  */
    1566             : static void
    1567          80 : setup_auth(FILE *cmdfd)
    1568             : {
    1569             :     /*
    1570             :      * The authid table shouldn't be readable except through views, to ensure
    1571             :      * passwords are not publicly visible.
    1572             :      */
    1573          80 :     PG_CMD_PUTS("REVOKE ALL ON pg_authid FROM public;\n\n");
    1574             : 
    1575          80 :     if (superuser_password)
    1576           0 :         PG_CMD_PRINTF("ALTER USER \"%s\" WITH PASSWORD E'%s';\n\n",
    1577             :                       username, escape_quotes(superuser_password));
    1578          80 : }
    1579             : 
    1580             : /*
    1581             :  * get the superuser password if required
    1582             :  */
    1583             : static void
    1584           0 : get_su_pwd(void)
    1585             : {
    1586             :     char       *pwd1;
    1587             : 
    1588           0 :     if (pwprompt)
    1589             :     {
    1590             :         /*
    1591             :          * Read password from terminal
    1592             :          */
    1593             :         char       *pwd2;
    1594             : 
    1595           0 :         printf("\n");
    1596           0 :         fflush(stdout);
    1597           0 :         pwd1 = simple_prompt("Enter new superuser password: ", false);
    1598           0 :         pwd2 = simple_prompt("Enter it again: ", false);
    1599           0 :         if (strcmp(pwd1, pwd2) != 0)
    1600             :         {
    1601           0 :             fprintf(stderr, _("Passwords didn't match.\n"));
    1602           0 :             exit(1);
    1603             :         }
    1604           0 :         free(pwd2);
    1605             :     }
    1606             :     else
    1607             :     {
    1608             :         /*
    1609             :          * Read password from file
    1610             :          *
    1611             :          * Ideally this should insist that the file not be world-readable.
    1612             :          * However, this option is mainly intended for use on Windows where
    1613             :          * file permissions may not exist at all, so we'll skip the paranoia
    1614             :          * for now.
    1615             :          */
    1616           0 :         FILE       *pwf = fopen(pwfilename, "r");
    1617             : 
    1618           0 :         if (!pwf)
    1619           0 :             pg_fatal("could not open file \"%s\" for reading: %m",
    1620             :                      pwfilename);
    1621           0 :         pwd1 = pg_get_line(pwf, NULL);
    1622           0 :         if (!pwd1)
    1623             :         {
    1624           0 :             if (ferror(pwf))
    1625           0 :                 pg_fatal("could not read password from file \"%s\": %m",
    1626             :                          pwfilename);
    1627             :             else
    1628           0 :                 pg_fatal("password file \"%s\" is empty",
    1629             :                          pwfilename);
    1630             :         }
    1631           0 :         fclose(pwf);
    1632             : 
    1633           0 :         (void) pg_strip_crlf(pwd1);
    1634             :     }
    1635             : 
    1636           0 :     superuser_password = pwd1;
    1637           0 : }
    1638             : 
    1639             : /*
    1640             :  * set up pg_depend
    1641             :  */
    1642             : static void
    1643          80 : setup_depend(FILE *cmdfd)
    1644             : {
    1645             :     /*
    1646             :      * Advance the OID counter so that subsequently-created objects aren't
    1647             :      * pinned.
    1648             :      */
    1649          80 :     PG_CMD_PUTS("SELECT pg_stop_making_pinned_objects();\n\n");
    1650          80 : }
    1651             : 
    1652             : /*
    1653             :  * Run external file
    1654             :  */
    1655             : static void
    1656         400 : setup_run_file(FILE *cmdfd, const char *filename)
    1657             : {
    1658             :     char      **lines;
    1659             : 
    1660         400 :     lines = readfile(filename);
    1661             : 
    1662      531760 :     for (char **line = lines; *line != NULL; line++)
    1663             :     {
    1664      531360 :         PG_CMD_PUTS(*line);
    1665      531360 :         free(*line);
    1666             :     }
    1667             : 
    1668         400 :     PG_CMD_PUTS("\n\n");
    1669             : 
    1670         400 :     free(lines);
    1671         400 : }
    1672             : 
    1673             : /*
    1674             :  * fill in extra description data
    1675             :  */
    1676             : static void
    1677          80 : setup_description(FILE *cmdfd)
    1678             : {
    1679             :     /* Create default descriptions for operator implementation functions */
    1680          80 :     PG_CMD_PUTS("WITH funcdescs AS ( "
    1681             :                 "SELECT p.oid as p_oid, o.oid as o_oid, oprname "
    1682             :                 "FROM pg_proc p JOIN pg_operator o ON oprcode = p.oid ) "
    1683             :                 "INSERT INTO pg_description "
    1684             :                 "  SELECT p_oid, 'pg_proc'::regclass, 0, "
    1685             :                 "    'implementation of ' || oprname || ' operator' "
    1686             :                 "  FROM funcdescs "
    1687             :                 "  WHERE NOT EXISTS (SELECT 1 FROM pg_description "
    1688             :                 "   WHERE objoid = p_oid AND classoid = 'pg_proc'::regclass) "
    1689             :                 "  AND NOT EXISTS (SELECT 1 FROM pg_description "
    1690             :                 "   WHERE objoid = o_oid AND classoid = 'pg_operator'::regclass"
    1691             :                 "         AND description LIKE 'deprecated%');\n\n");
    1692          80 : }
    1693             : 
    1694             : /*
    1695             :  * populate pg_collation
    1696             :  */
    1697             : static void
    1698          80 : setup_collation(FILE *cmdfd)
    1699             : {
    1700             :     /*
    1701             :      * Set the collation version for collations defined in pg_collation.dat,
    1702             :      * but not the ones where we know that the collation behavior will never
    1703             :      * change.
    1704             :      */
    1705          80 :     PG_CMD_PUTS("UPDATE pg_collation SET collversion = pg_collation_actual_version(oid) WHERE collname = 'unicode';\n\n");
    1706             : 
    1707             :     /* Import all collations we can find in the operating system */
    1708          80 :     PG_CMD_PUTS("SELECT pg_import_system_collations('pg_catalog');\n\n");
    1709          80 : }
    1710             : 
    1711             : /*
    1712             :  * Set up privileges
    1713             :  *
    1714             :  * We mark most system catalogs as world-readable.  We don't currently have
    1715             :  * to touch functions, languages, or databases, because their default
    1716             :  * permissions are OK.
    1717             :  *
    1718             :  * Some objects may require different permissions by default, so we
    1719             :  * make sure we don't overwrite privilege sets that have already been
    1720             :  * set (NOT NULL).
    1721             :  *
    1722             :  * Also populate pg_init_privs to save what the privileges are at init
    1723             :  * time.  This is used by pg_dump to allow users to change privileges
    1724             :  * on catalog objects and to have those privilege changes preserved
    1725             :  * across dump/reload and pg_upgrade.
    1726             :  *
    1727             :  * Note that pg_init_privs is only for per-database objects and therefore
    1728             :  * we don't include databases or tablespaces.
    1729             :  */
    1730             : static void
    1731          80 : setup_privileges(FILE *cmdfd)
    1732             : {
    1733          80 :     PG_CMD_PRINTF("UPDATE pg_class "
    1734             :                   "  SET relacl = (SELECT array_agg(a.acl) FROM "
    1735             :                   " (SELECT E'=r/\"%s\"' as acl "
    1736             :                   "  UNION SELECT unnest(pg_catalog.acldefault("
    1737             :                   "    CASE WHEN relkind = " CppAsString2(RELKIND_SEQUENCE) " THEN 's' "
    1738             :                   "         ELSE 'r' END::\"char\"," CppAsString2(BOOTSTRAP_SUPERUSERID) "::oid))"
    1739             :                   " ) as a) "
    1740             :                   "  WHERE relkind IN (" CppAsString2(RELKIND_RELATION) ", "
    1741             :                   CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
    1742             :                   CppAsString2(RELKIND_SEQUENCE) ")"
    1743             :                   "  AND relacl IS NULL;\n\n",
    1744             :                   escape_quotes(username));
    1745          80 :     PG_CMD_PUTS("GRANT USAGE ON SCHEMA pg_catalog, public TO PUBLIC;\n\n");
    1746          80 :     PG_CMD_PUTS("REVOKE ALL ON pg_largeobject FROM PUBLIC;\n\n");
    1747          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1748             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1749             :                 "    SELECT"
    1750             :                 "        oid,"
    1751             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
    1752             :                 "        0,"
    1753             :                 "        relacl,"
    1754             :                 "        'i'"
    1755             :                 "    FROM"
    1756             :                 "        pg_class"
    1757             :                 "    WHERE"
    1758             :                 "        relacl IS NOT NULL"
    1759             :                 "        AND relkind IN (" CppAsString2(RELKIND_RELATION) ", "
    1760             :                 CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
    1761             :                 CppAsString2(RELKIND_SEQUENCE) ");\n\n");
    1762          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1763             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1764             :                 "    SELECT"
    1765             :                 "        pg_class.oid,"
    1766             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_class'),"
    1767             :                 "        pg_attribute.attnum,"
    1768             :                 "        pg_attribute.attacl,"
    1769             :                 "        'i'"
    1770             :                 "    FROM"
    1771             :                 "        pg_class"
    1772             :                 "        JOIN pg_attribute ON (pg_class.oid = pg_attribute.attrelid)"
    1773             :                 "    WHERE"
    1774             :                 "        pg_attribute.attacl IS NOT NULL"
    1775             :                 "        AND pg_class.relkind IN (" CppAsString2(RELKIND_RELATION) ", "
    1776             :                 CppAsString2(RELKIND_VIEW) ", " CppAsString2(RELKIND_MATVIEW) ", "
    1777             :                 CppAsString2(RELKIND_SEQUENCE) ");\n\n");
    1778          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1779             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1780             :                 "    SELECT"
    1781             :                 "        oid,"
    1782             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_proc'),"
    1783             :                 "        0,"
    1784             :                 "        proacl,"
    1785             :                 "        'i'"
    1786             :                 "    FROM"
    1787             :                 "        pg_proc"
    1788             :                 "    WHERE"
    1789             :                 "        proacl IS NOT NULL;\n\n");
    1790          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1791             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1792             :                 "    SELECT"
    1793             :                 "        oid,"
    1794             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_type'),"
    1795             :                 "        0,"
    1796             :                 "        typacl,"
    1797             :                 "        'i'"
    1798             :                 "    FROM"
    1799             :                 "        pg_type"
    1800             :                 "    WHERE"
    1801             :                 "        typacl IS NOT NULL;\n\n");
    1802          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1803             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1804             :                 "    SELECT"
    1805             :                 "        oid,"
    1806             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_language'),"
    1807             :                 "        0,"
    1808             :                 "        lanacl,"
    1809             :                 "        'i'"
    1810             :                 "    FROM"
    1811             :                 "        pg_language"
    1812             :                 "    WHERE"
    1813             :                 "        lanacl IS NOT NULL;\n\n");
    1814          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1815             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1816             :                 "    SELECT"
    1817             :                 "        oid,"
    1818             :                 "        (SELECT oid FROM pg_class WHERE "
    1819             :                 "         relname = 'pg_largeobject_metadata'),"
    1820             :                 "        0,"
    1821             :                 "        lomacl,"
    1822             :                 "        'i'"
    1823             :                 "    FROM"
    1824             :                 "        pg_largeobject_metadata"
    1825             :                 "    WHERE"
    1826             :                 "        lomacl IS NOT NULL;\n\n");
    1827          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1828             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1829             :                 "    SELECT"
    1830             :                 "        oid,"
    1831             :                 "        (SELECT oid FROM pg_class WHERE relname = 'pg_namespace'),"
    1832             :                 "        0,"
    1833             :                 "        nspacl,"
    1834             :                 "        'i'"
    1835             :                 "    FROM"
    1836             :                 "        pg_namespace"
    1837             :                 "    WHERE"
    1838             :                 "        nspacl IS NOT NULL;\n\n");
    1839          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1840             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1841             :                 "    SELECT"
    1842             :                 "        oid,"
    1843             :                 "        (SELECT oid FROM pg_class WHERE "
    1844             :                 "         relname = 'pg_foreign_data_wrapper'),"
    1845             :                 "        0,"
    1846             :                 "        fdwacl,"
    1847             :                 "        'i'"
    1848             :                 "    FROM"
    1849             :                 "        pg_foreign_data_wrapper"
    1850             :                 "    WHERE"
    1851             :                 "        fdwacl IS NOT NULL;\n\n");
    1852          80 :     PG_CMD_PUTS("INSERT INTO pg_init_privs "
    1853             :                 "  (objoid, classoid, objsubid, initprivs, privtype)"
    1854             :                 "    SELECT"
    1855             :                 "        oid,"
    1856             :                 "        (SELECT oid FROM pg_class "
    1857             :                 "         WHERE relname = 'pg_foreign_server'),"
    1858             :                 "        0,"
    1859             :                 "        srvacl,"
    1860             :                 "        'i'"
    1861             :                 "    FROM"
    1862             :                 "        pg_foreign_server"
    1863             :                 "    WHERE"
    1864             :                 "        srvacl IS NOT NULL;\n\n");
    1865          80 : }
    1866             : 
    1867             : /*
    1868             :  * extract the strange version of version required for information schema
    1869             :  * (09.08.0007abc)
    1870             :  */
    1871             : static void
    1872          98 : set_info_version(void)
    1873             : {
    1874             :     char       *letterversion;
    1875          98 :     long        major = 0,
    1876          98 :                 minor = 0,
    1877          98 :                 micro = 0;
    1878             :     char       *endptr;
    1879          98 :     char       *vstr = pg_strdup(PG_VERSION);
    1880             :     char       *ptr;
    1881             : 
    1882          98 :     ptr = vstr + (strlen(vstr) - 1);
    1883          98 :     while (ptr != vstr && (*ptr < '0' || *ptr > '9'))
    1884           0 :         ptr--;
    1885          98 :     letterversion = ptr + 1;
    1886          98 :     major = strtol(vstr, &endptr, 10);
    1887          98 :     if (*endptr)
    1888          98 :         minor = strtol(endptr + 1, &endptr, 10);
    1889          98 :     if (*endptr)
    1890          98 :         micro = strtol(endptr + 1, &endptr, 10);
    1891          98 :     snprintf(infoversion, sizeof(infoversion), "%02ld.%02ld.%04ld%s",
    1892             :              major, minor, micro, letterversion);
    1893          98 : }
    1894             : 
    1895             : /*
    1896             :  * load info schema and populate from features file
    1897             :  */
    1898             : static void
    1899          80 : setup_schema(FILE *cmdfd)
    1900             : {
    1901          80 :     setup_run_file(cmdfd, info_schema_file);
    1902             : 
    1903          80 :     PG_CMD_PRINTF("UPDATE information_schema.sql_implementation_info "
    1904             :                   "  SET character_value = '%s' "
    1905             :                   "  WHERE implementation_info_name = 'DBMS VERSION';\n\n",
    1906             :                   infoversion);
    1907             : 
    1908          80 :     PG_CMD_PRINTF("COPY information_schema.sql_features "
    1909             :                   "  (feature_id, feature_name, sub_feature_id, "
    1910             :                   "  sub_feature_name, is_supported, comments) "
    1911             :                   " FROM E'%s';\n\n",
    1912             :                   escape_quotes(features_file));
    1913          80 : }
    1914             : 
    1915             : /*
    1916             :  * load PL/pgSQL server-side language
    1917             :  */
    1918             : static void
    1919          80 : load_plpgsql(FILE *cmdfd)
    1920             : {
    1921          80 :     PG_CMD_PUTS("CREATE EXTENSION plpgsql;\n\n");
    1922          80 : }
    1923             : 
    1924             : /*
    1925             :  * clean everything up in template1
    1926             :  */
    1927             : static void
    1928          80 : vacuum_db(FILE *cmdfd)
    1929             : {
    1930             :     /* Run analyze before VACUUM so the statistics are frozen. */
    1931          80 :     PG_CMD_PUTS("ANALYZE;\n\nVACUUM FREEZE;\n\n");
    1932          80 : }
    1933             : 
    1934             : /*
    1935             :  * copy template1 to template0
    1936             :  */
    1937             : static void
    1938          80 : make_template0(FILE *cmdfd)
    1939             : {
    1940             :     /*
    1941             :      * pg_upgrade tries to preserve database OIDs across upgrades. It's smart
    1942             :      * enough to drop and recreate a conflicting database with the same name,
    1943             :      * but if the same OID were used for one system-created database in the
    1944             :      * old cluster and a different system-created database in the new cluster,
    1945             :      * it would fail. To avoid that, assign a fixed OID to template0 rather
    1946             :      * than letting the server choose one.
    1947             :      *
    1948             :      * (Note that, while the user could have dropped and recreated these
    1949             :      * objects in the old cluster, the problem scenario only exists if the OID
    1950             :      * that is in use in the old cluster is also used in the new cluster - and
    1951             :      * the new cluster should be the result of a fresh initdb.)
    1952             :      *
    1953             :      * We use "STRATEGY = file_copy" here because checkpoints during initdb
    1954             :      * are cheap. "STRATEGY = wal_log" would generate more WAL, which would be
    1955             :      * a little bit slower and make the new cluster a little bit bigger.
    1956             :      */
    1957          80 :     PG_CMD_PUTS("CREATE DATABASE template0 IS_TEMPLATE = true ALLOW_CONNECTIONS = false"
    1958             :                 " OID = " CppAsString2(Template0DbOid)
    1959             :                 " STRATEGY = file_copy;\n\n");
    1960             : 
    1961             :     /*
    1962             :      * template0 shouldn't have any collation-dependent objects, so unset the
    1963             :      * collation version.  This disables collation version checks when making
    1964             :      * a new database from it.
    1965             :      */
    1966          80 :     PG_CMD_PUTS("UPDATE pg_database SET datcollversion = NULL WHERE datname = 'template0';\n\n");
    1967             : 
    1968             :     /*
    1969             :      * While we are here, do set the collation version on template1.
    1970             :      */
    1971          80 :     PG_CMD_PUTS("UPDATE pg_database SET datcollversion = pg_database_collation_actual_version(oid) WHERE datname = 'template1';\n\n");
    1972             : 
    1973             :     /*
    1974             :      * Explicitly revoke public create-schema and create-temp-table privileges
    1975             :      * in template1 and template0; else the latter would be on by default
    1976             :      */
    1977          80 :     PG_CMD_PUTS("REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n\n");
    1978          80 :     PG_CMD_PUTS("REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n\n");
    1979             : 
    1980          80 :     PG_CMD_PUTS("COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n\n");
    1981             : 
    1982             :     /*
    1983             :      * Finally vacuum to clean up dead rows in pg_database
    1984             :      */
    1985          80 :     PG_CMD_PUTS("VACUUM pg_database;\n\n");
    1986          80 : }
    1987             : 
    1988             : /*
    1989             :  * copy template1 to postgres
    1990             :  */
    1991             : static void
    1992          80 : make_postgres(FILE *cmdfd)
    1993             : {
    1994             :     /*
    1995             :      * Just as we did for template0, and for the same reasons, assign a fixed
    1996             :      * OID to postgres and select the file_copy strategy.
    1997             :      */
    1998          80 :     PG_CMD_PUTS("CREATE DATABASE postgres OID = " CppAsString2(PostgresDbOid)
    1999             :                 " STRATEGY = file_copy;\n\n");
    2000          80 :     PG_CMD_PUTS("COMMENT ON DATABASE postgres IS 'default administrative connection database';\n\n");
    2001          80 : }
    2002             : 
    2003             : /*
    2004             :  * signal handler in case we are interrupted.
    2005             :  *
    2006             :  * The Windows runtime docs at
    2007             :  * https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/signal
    2008             :  * specifically forbid a number of things being done from a signal handler,
    2009             :  * including IO, memory allocation and system calls, and only allow jmpbuf
    2010             :  * if you are handling SIGFPE.
    2011             :  *
    2012             :  * I avoided doing the forbidden things by setting a flag instead of calling
    2013             :  * exit() directly.
    2014             :  *
    2015             :  * Also note the behaviour of Windows with SIGINT, which says this:
    2016             :  *  SIGINT is not supported for any Win32 application. When a CTRL+C interrupt
    2017             :  *  occurs, Win32 operating systems generate a new thread to specifically
    2018             :  *  handle that interrupt. This can cause a single-thread application, such as
    2019             :  *  one in UNIX, to become multithreaded and cause unexpected behavior.
    2020             :  *
    2021             :  * I have no idea how to handle this. (Strange they call UNIX an application!)
    2022             :  * So this will need some testing on Windows.
    2023             :  */
    2024             : static void
    2025           0 : trapsig(SIGNAL_ARGS)
    2026             : {
    2027             :     /* handle systems that reset the handler, like Windows (grr) */
    2028           0 :     pqsignal(postgres_signal_arg, trapsig);
    2029           0 :     caught_signal = true;
    2030           0 : }
    2031             : 
    2032             : /*
    2033             :  * call exit() if we got a signal, or else output "ok".
    2034             :  */
    2035             : static void
    2036         416 : check_ok(void)
    2037             : {
    2038         416 :     if (caught_signal)
    2039             :     {
    2040           0 :         printf(_("caught signal\n"));
    2041           0 :         fflush(stdout);
    2042           0 :         exit(1);
    2043             :     }
    2044         416 :     else if (output_failed)
    2045             :     {
    2046           0 :         printf(_("could not write to child process: %s\n"),
    2047             :                strerror(output_errno));
    2048           0 :         fflush(stdout);
    2049           0 :         exit(1);
    2050             :     }
    2051             :     else
    2052             :     {
    2053             :         /* all seems well */
    2054         416 :         printf(_("ok\n"));
    2055         416 :         fflush(stdout);
    2056             :     }
    2057         416 : }
    2058             : 
    2059             : /* Hack to suppress a warning about %x from some versions of gcc */
    2060             : static inline size_t
    2061          82 : my_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
    2062             : {
    2063          82 :     return strftime(s, max, fmt, tm);
    2064             : }
    2065             : 
    2066             : /*
    2067             :  * Determine likely date order from locale
    2068             :  */
    2069             : static int
    2070          82 : locale_date_order(const char *locale)
    2071             : {
    2072             :     struct tm   testtime;
    2073             :     char        buf[128];
    2074             :     char       *posD;
    2075             :     char       *posM;
    2076             :     char       *posY;
    2077             :     char       *save;
    2078             :     size_t      res;
    2079             :     int         result;
    2080             : 
    2081          82 :     result = DATEORDER_MDY;     /* default */
    2082             : 
    2083          82 :     save = setlocale(LC_TIME, NULL);
    2084          82 :     if (!save)
    2085           0 :         return result;
    2086          82 :     save = pg_strdup(save);
    2087             : 
    2088          82 :     setlocale(LC_TIME, locale);
    2089             : 
    2090          82 :     memset(&testtime, 0, sizeof(testtime));
    2091          82 :     testtime.tm_mday = 22;
    2092          82 :     testtime.tm_mon = 10;       /* November, should come out as "11" */
    2093          82 :     testtime.tm_year = 133;     /* 2033 */
    2094             : 
    2095          82 :     res = my_strftime(buf, sizeof(buf), "%x", &testtime);
    2096             : 
    2097          82 :     setlocale(LC_TIME, save);
    2098          82 :     free(save);
    2099             : 
    2100          82 :     if (res == 0)
    2101           0 :         return result;
    2102             : 
    2103          82 :     posM = strstr(buf, "11");
    2104          82 :     posD = strstr(buf, "22");
    2105          82 :     posY = strstr(buf, "33");
    2106             : 
    2107          82 :     if (!posM || !posD || !posY)
    2108           0 :         return result;
    2109             : 
    2110          82 :     if (posY < posM && posM < posD)
    2111           0 :         result = DATEORDER_YMD;
    2112          82 :     else if (posD < posM)
    2113           0 :         result = DATEORDER_DMY;
    2114             :     else
    2115          82 :         result = DATEORDER_MDY;
    2116             : 
    2117          82 :     return result;
    2118             : }
    2119             : 
    2120             : /*
    2121             :  * Verify that locale name is valid for the locale category.
    2122             :  *
    2123             :  * If successful, and canonname isn't NULL, a malloc'd copy of the locale's
    2124             :  * canonical name is stored there.  This is especially useful for figuring out
    2125             :  * what locale name "" means (ie, the environment value).  (Actually,
    2126             :  * it seems that on most implementations that's the only thing it's good for;
    2127             :  * we could wish that setlocale gave back a canonically spelled version of
    2128             :  * the locale name, but typically it doesn't.)
    2129             :  *
    2130             :  * this should match the backend's check_locale() function
    2131             :  */
    2132             : static void
    2133         588 : check_locale_name(int category, const char *locale, char **canonname)
    2134             : {
    2135             :     char       *save;
    2136             :     char       *res;
    2137             : 
    2138         588 :     if (canonname)
    2139         588 :         *canonname = NULL;      /* in case of failure */
    2140             : 
    2141         588 :     save = setlocale(category, NULL);
    2142         588 :     if (!save)
    2143           0 :         pg_fatal("setlocale() failed");
    2144             : 
    2145             :     /* save may be pointing at a modifiable scratch variable, so copy it. */
    2146         588 :     save = pg_strdup(save);
    2147             : 
    2148             :     /* for setlocale() call */
    2149         588 :     if (!locale)
    2150         368 :         locale = "";
    2151             : 
    2152             :     /* set the locale with setlocale, to see if it accepts it. */
    2153         588 :     res = setlocale(category, locale);
    2154             : 
    2155             :     /* save canonical name if requested. */
    2156         588 :     if (res && canonname)
    2157         588 :         *canonname = pg_strdup(res);
    2158             : 
    2159             :     /* restore old value. */
    2160         588 :     if (!setlocale(category, save))
    2161           0 :         pg_fatal("failed to restore old locale \"%s\"", save);
    2162         588 :     free(save);
    2163             : 
    2164             :     /* complain if locale wasn't valid */
    2165         588 :     if (res == NULL)
    2166             :     {
    2167           0 :         if (*locale)
    2168             :         {
    2169           0 :             pg_log_error("invalid locale name \"%s\"", locale);
    2170           0 :             pg_log_error_hint("If the locale name is specific to ICU, use --icu-locale.");
    2171           0 :             exit(1);
    2172             :         }
    2173             :         else
    2174             :         {
    2175             :             /*
    2176             :              * If no relevant switch was given on command line, locale is an
    2177             :              * empty string, which is not too helpful to report.  Presumably
    2178             :              * setlocale() found something it did not like in the environment.
    2179             :              * Ideally we'd report the bad environment variable, but since
    2180             :              * setlocale's behavior is implementation-specific, it's hard to
    2181             :              * be sure what it didn't like.  Print a safe generic message.
    2182             :              */
    2183           0 :             pg_fatal("invalid locale settings; check LANG and LC_* environment variables");
    2184             :         }
    2185             :     }
    2186         588 : }
    2187             : 
    2188             : /*
    2189             :  * check if the chosen encoding matches the encoding required by the locale
    2190             :  *
    2191             :  * this should match the similar check in the backend createdb() function
    2192             :  */
    2193             : static bool
    2194         184 : check_locale_encoding(const char *locale, int user_enc)
    2195             : {
    2196             :     int         locale_enc;
    2197             : 
    2198         184 :     locale_enc = pg_get_encoding_from_locale(locale, true);
    2199             : 
    2200             :     /* See notes in createdb() to understand these tests */
    2201         192 :     if (!(locale_enc == user_enc ||
    2202           8 :           locale_enc == PG_SQL_ASCII ||
    2203             :           locale_enc == -1 ||
    2204             : #ifdef WIN32
    2205             :           user_enc == PG_UTF8 ||
    2206             : #endif
    2207             :           user_enc == PG_SQL_ASCII))
    2208             :     {
    2209           0 :         pg_log_error("encoding mismatch");
    2210           0 :         pg_log_error_detail("The encoding you selected (%s) and the encoding that the "
    2211             :                             "selected locale uses (%s) do not match. This would lead to "
    2212             :                             "misbehavior in various character string processing functions.",
    2213             :                             pg_encoding_to_char(user_enc),
    2214             :                             pg_encoding_to_char(locale_enc));
    2215           0 :         pg_log_error_hint("Rerun %s and either do not specify an encoding explicitly, "
    2216             :                           "or choose a matching combination.",
    2217             :                           progname);
    2218           0 :         return false;
    2219             :     }
    2220         184 :     return true;
    2221             : }
    2222             : 
    2223             : /*
    2224             :  * check if the chosen encoding matches is supported by ICU
    2225             :  *
    2226             :  * this should match the similar check in the backend createdb() function
    2227             :  */
    2228             : static bool
    2229          12 : check_icu_locale_encoding(int user_enc)
    2230             : {
    2231          12 :     if (!(is_encoding_supported_by_icu(user_enc)))
    2232             :     {
    2233           2 :         pg_log_error("encoding mismatch");
    2234           2 :         pg_log_error_detail("The encoding you selected (%s) is not supported with the ICU provider.",
    2235             :                             pg_encoding_to_char(user_enc));
    2236           2 :         pg_log_error_hint("Rerun %s and either do not specify an encoding explicitly, "
    2237             :                           "or choose a matching combination.",
    2238             :                           progname);
    2239           2 :         return false;
    2240             :     }
    2241          10 :     return true;
    2242             : }
    2243             : 
    2244             : /*
    2245             :  * Convert to canonical BCP47 language tag. Must be consistent with
    2246             :  * icu_language_tag().
    2247             :  */
    2248             : static char *
    2249          14 : icu_language_tag(const char *loc_str)
    2250             : {
    2251             : #ifdef USE_ICU
    2252             :     UErrorCode  status;
    2253             :     char       *langtag;
    2254          14 :     size_t      buflen = 32;    /* arbitrary starting buffer size */
    2255          14 :     const bool  strict = true;
    2256             : 
    2257             :     /*
    2258             :      * A BCP47 language tag doesn't have a clearly-defined upper limit (cf.
    2259             :      * RFC5646 section 4.4). Additionally, in older ICU versions,
    2260             :      * uloc_toLanguageTag() doesn't always return the ultimate length on the
    2261             :      * first call, necessitating a loop.
    2262             :      */
    2263          14 :     langtag = pg_malloc(buflen);
    2264             :     while (true)
    2265             :     {
    2266          14 :         status = U_ZERO_ERROR;
    2267          14 :         uloc_toLanguageTag(loc_str, langtag, buflen, strict, &status);
    2268             : 
    2269             :         /* try again if the buffer is not large enough */
    2270          14 :         if (status == U_BUFFER_OVERFLOW_ERROR ||
    2271          14 :             status == U_STRING_NOT_TERMINATED_WARNING)
    2272             :         {
    2273           0 :             buflen = buflen * 2;
    2274           0 :             langtag = pg_realloc(langtag, buflen);
    2275           0 :             continue;
    2276             :         }
    2277             : 
    2278          14 :         break;
    2279             :     }
    2280             : 
    2281          14 :     if (U_FAILURE(status))
    2282             :     {
    2283           0 :         pg_free(langtag);
    2284             : 
    2285           0 :         pg_fatal("could not convert locale name \"%s\" to language tag: %s",
    2286             :                  loc_str, u_errorName(status));
    2287             :     }
    2288             : 
    2289          14 :     return langtag;
    2290             : #else
    2291             :     pg_fatal("ICU is not supported in this build");
    2292             :     return NULL;                /* keep compiler quiet */
    2293             : #endif
    2294             : }
    2295             : 
    2296             : /*
    2297             :  * Perform best-effort check that the locale is a valid one. Should be
    2298             :  * consistent with pg_locale.c, except that it doesn't need to open the
    2299             :  * collator (that will happen during post-bootstrap initialization).
    2300             :  */
    2301             : static void
    2302          14 : icu_validate_locale(const char *loc_str)
    2303             : {
    2304             : #ifdef USE_ICU
    2305             :     UErrorCode  status;
    2306             :     char        lang[ULOC_LANG_CAPACITY];
    2307          14 :     bool        found = false;
    2308             : 
    2309             :     /* validate that we can extract the language */
    2310          14 :     status = U_ZERO_ERROR;
    2311          14 :     uloc_getLanguage(loc_str, lang, ULOC_LANG_CAPACITY, &status);
    2312          14 :     if (U_FAILURE(status))
    2313             :     {
    2314           0 :         pg_fatal("could not get language from locale \"%s\": %s",
    2315             :                  loc_str, u_errorName(status));
    2316             :         return;
    2317             :     }
    2318             : 
    2319             :     /* check for special language name */
    2320          14 :     if (strcmp(lang, "") == 0 ||
    2321           8 :         strcmp(lang, "root") == 0 || strcmp(lang, "und") == 0)
    2322           6 :         found = true;
    2323             : 
    2324             :     /* search for matching language within ICU */
    2325        2364 :     for (int32_t i = 0; !found && i < uloc_countAvailable(); i++)
    2326             :     {
    2327        2350 :         const char *otherloc = uloc_getAvailable(i);
    2328             :         char        otherlang[ULOC_LANG_CAPACITY];
    2329             : 
    2330        2350 :         status = U_ZERO_ERROR;
    2331        2350 :         uloc_getLanguage(otherloc, otherlang, ULOC_LANG_CAPACITY, &status);
    2332        2350 :         if (U_FAILURE(status))
    2333           0 :             continue;
    2334             : 
    2335        2350 :         if (strcmp(lang, otherlang) == 0)
    2336           6 :             found = true;
    2337             :     }
    2338             : 
    2339          14 :     if (!found)
    2340           2 :         pg_fatal("locale \"%s\" has unknown language \"%s\"",
    2341             :                  loc_str, lang);
    2342             : #else
    2343             :     pg_fatal("ICU is not supported in this build");
    2344             : #endif
    2345             : }
    2346             : 
    2347             : /*
    2348             :  * set up the locale variables
    2349             :  *
    2350             :  * assumes we have called setlocale(LC_ALL, "") -- see set_pglocale_pgservice
    2351             :  */
    2352             : static void
    2353          98 : setlocales(void)
    2354             : {
    2355             :     char       *canonname;
    2356             : 
    2357             :     /* set empty lc_* and datlocale values to locale config if set */
    2358             : 
    2359          98 :     if (locale)
    2360             :     {
    2361          34 :         if (!lc_ctype)
    2362          30 :             lc_ctype = locale;
    2363          34 :         if (!lc_collate)
    2364          32 :             lc_collate = locale;
    2365          34 :         if (!lc_numeric)
    2366          32 :             lc_numeric = locale;
    2367          34 :         if (!lc_time)
    2368          32 :             lc_time = locale;
    2369          34 :         if (!lc_monetary)
    2370          32 :             lc_monetary = locale;
    2371          34 :         if (!lc_messages)
    2372          32 :             lc_messages = locale;
    2373          34 :         if (!datlocale && locale_provider != COLLPROVIDER_LIBC)
    2374           6 :             datlocale = locale;
    2375             :     }
    2376             : 
    2377             :     /*
    2378             :      * canonicalize locale names, and obtain any missing values from our
    2379             :      * current environment
    2380             :      */
    2381          98 :     check_locale_name(LC_CTYPE, lc_ctype, &canonname);
    2382          98 :     lc_ctype = canonname;
    2383          98 :     check_locale_name(LC_COLLATE, lc_collate, &canonname);
    2384          98 :     lc_collate = canonname;
    2385          98 :     check_locale_name(LC_NUMERIC, lc_numeric, &canonname);
    2386          98 :     lc_numeric = canonname;
    2387          98 :     check_locale_name(LC_TIME, lc_time, &canonname);
    2388          98 :     lc_time = canonname;
    2389          98 :     check_locale_name(LC_MONETARY, lc_monetary, &canonname);
    2390          98 :     lc_monetary = canonname;
    2391             : #if defined(LC_MESSAGES) && !defined(WIN32)
    2392          98 :     check_locale_name(LC_MESSAGES, lc_messages, &canonname);
    2393          98 :     lc_messages = canonname;
    2394             : #else
    2395             :     /* when LC_MESSAGES is not available, use the LC_CTYPE setting */
    2396             :     check_locale_name(LC_CTYPE, lc_messages, &canonname);
    2397             :     lc_messages = canonname;
    2398             : #endif
    2399             : 
    2400          98 :     if (locale_provider != COLLPROVIDER_LIBC && datlocale == NULL)
    2401           4 :         pg_fatal("locale must be specified if provider is %s",
    2402             :                  collprovider_name(locale_provider));
    2403             : 
    2404          94 :     if (locale_provider == COLLPROVIDER_BUILTIN)
    2405             :     {
    2406          10 :         if (strcmp(datlocale, "C") == 0)
    2407           4 :             canonname = "C";
    2408           6 :         else if (strcmp(datlocale, "C.UTF-8") == 0 ||
    2409           0 :                  strcmp(datlocale, "C.UTF8") == 0)
    2410           6 :             canonname = "C.UTF-8";
    2411             :         else
    2412           0 :             pg_fatal("invalid locale name \"%s\" for builtin provider",
    2413             :                      datlocale);
    2414             : 
    2415          10 :         datlocale = canonname;
    2416             :     }
    2417          84 :     else if (locale_provider == COLLPROVIDER_ICU)
    2418             :     {
    2419             :         char       *langtag;
    2420             : 
    2421             :         /* canonicalize to a language tag */
    2422          14 :         langtag = icu_language_tag(datlocale);
    2423          14 :         printf(_("Using language tag \"%s\" for ICU locale \"%s\".\n"),
    2424             :                langtag, datlocale);
    2425          14 :         pg_free(datlocale);
    2426          14 :         datlocale = langtag;
    2427             : 
    2428          14 :         icu_validate_locale(datlocale);
    2429             : 
    2430             :         /*
    2431             :          * In supported builds, the ICU locale ID will be opened during
    2432             :          * post-bootstrap initialization, which will perform extra checks.
    2433             :          */
    2434             : #ifndef USE_ICU
    2435             :         pg_fatal("ICU is not supported in this build");
    2436             : #endif
    2437             :     }
    2438          92 : }
    2439             : 
    2440             : /*
    2441             :  * print help text
    2442             :  */
    2443             : static void
    2444           2 : usage(const char *progname)
    2445             : {
    2446           2 :     printf(_("%s initializes a PostgreSQL database cluster.\n\n"), progname);
    2447           2 :     printf(_("Usage:\n"));
    2448           2 :     printf(_("  %s [OPTION]... [DATADIR]\n"), progname);
    2449           2 :     printf(_("\nOptions:\n"));
    2450           2 :     printf(_("  -A, --auth=METHOD         default authentication method for local connections\n"));
    2451           2 :     printf(_("      --auth-host=METHOD    default authentication method for local TCP/IP connections\n"));
    2452           2 :     printf(_("      --auth-local=METHOD   default authentication method for local-socket connections\n"));
    2453           2 :     printf(_(" [-D, --pgdata=]DATADIR     location for this database cluster\n"));
    2454           2 :     printf(_("  -E, --encoding=ENCODING   set default encoding for new databases\n"));
    2455           2 :     printf(_("  -g, --allow-group-access  allow group read/execute on data directory\n"));
    2456           2 :     printf(_("      --icu-locale=LOCALE   set ICU locale ID for new databases\n"));
    2457           2 :     printf(_("      --icu-rules=RULES     set additional ICU collation rules for new databases\n"));
    2458           2 :     printf(_("  -k, --data-checksums      use data page checksums\n"));
    2459           2 :     printf(_("      --locale=LOCALE       set default locale for new databases\n"));
    2460           2 :     printf(_("      --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
    2461             :              "      --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
    2462             :              "                            set default locale in the respective category for\n"
    2463             :              "                            new databases (default taken from environment)\n"));
    2464           2 :     printf(_("      --no-locale           equivalent to --locale=C\n"));
    2465           2 :     printf(_("      --builtin-locale=LOCALE\n"
    2466             :              "                            set builtin locale name for new databases\n"));
    2467           2 :     printf(_("      --locale-provider={builtin|libc|icu}\n"
    2468             :              "                            set default locale provider for new databases\n"));
    2469           2 :     printf(_("      --pwfile=FILE         read password for the new superuser from file\n"));
    2470           2 :     printf(_("  -T, --text-search-config=CFG\n"
    2471             :              "                            default text search configuration\n"));
    2472           2 :     printf(_("  -U, --username=NAME       database superuser name\n"));
    2473           2 :     printf(_("  -W, --pwprompt            prompt for a password for the new superuser\n"));
    2474           2 :     printf(_("  -X, --waldir=WALDIR       location for the write-ahead log directory\n"));
    2475           2 :     printf(_("      --wal-segsize=SIZE    size of WAL segments, in megabytes\n"));
    2476           2 :     printf(_("\nLess commonly used options:\n"));
    2477           2 :     printf(_("  -c, --set NAME=VALUE      override default setting for server parameter\n"));
    2478           2 :     printf(_("  -d, --debug               generate lots of debugging output\n"));
    2479           2 :     printf(_("      --discard-caches      set debug_discard_caches=1\n"));
    2480           2 :     printf(_("  -L DIRECTORY              where to find the input files\n"));
    2481           2 :     printf(_("  -n, --no-clean            do not clean up after errors\n"));
    2482           2 :     printf(_("  -N, --no-sync             do not wait for changes to be written safely to disk\n"));
    2483           2 :     printf(_("      --no-instructions     do not print instructions for next steps\n"));
    2484           2 :     printf(_("  -s, --show                show internal settings, then exit\n"));
    2485           2 :     printf(_("      --sync-method=METHOD  set method for syncing files to disk\n"));
    2486           2 :     printf(_("  -S, --sync-only           only sync database files to disk, then exit\n"));
    2487           2 :     printf(_("\nOther options:\n"));
    2488           2 :     printf(_("  -V, --version             output version information, then exit\n"));
    2489           2 :     printf(_("  -?, --help                show this help, then exit\n"));
    2490           2 :     printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
    2491             :              "is used.\n"));
    2492           2 :     printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
    2493           2 :     printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
    2494           2 : }
    2495             : 
    2496             : static void
    2497         200 : check_authmethod_unspecified(const char **authmethod)
    2498             : {
    2499         200 :     if (*authmethod == NULL)
    2500             :     {
    2501          88 :         authwarning = true;
    2502          88 :         *authmethod = "trust";
    2503             :     }
    2504         200 : }
    2505             : 
    2506             : static void
    2507         200 : check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
    2508             : {
    2509             :     const char *const *p;
    2510             : 
    2511         200 :     for (p = valid_methods; *p; p++)
    2512             :     {
    2513         200 :         if (strcmp(authmethod, *p) == 0)
    2514         200 :             return;
    2515             :     }
    2516             : 
    2517           0 :     pg_fatal("invalid authentication method \"%s\" for \"%s\" connections",
    2518             :              authmethod, conntype);
    2519             : }
    2520             : 
    2521             : static void
    2522         100 : check_need_password(const char *authmethodlocal, const char *authmethodhost)
    2523             : {
    2524         100 :     if ((strcmp(authmethodlocal, "md5") == 0 ||
    2525         100 :          strcmp(authmethodlocal, "password") == 0 ||
    2526         100 :          strcmp(authmethodlocal, "scram-sha-256") == 0) &&
    2527           0 :         (strcmp(authmethodhost, "md5") == 0 ||
    2528           0 :          strcmp(authmethodhost, "password") == 0 ||
    2529           0 :          strcmp(authmethodhost, "scram-sha-256") == 0) &&
    2530           0 :         !(pwprompt || pwfilename))
    2531           0 :         pg_fatal("must specify a password for the superuser to enable password authentication");
    2532         100 : }
    2533             : 
    2534             : 
    2535             : void
    2536         106 : setup_pgdata(void)
    2537             : {
    2538             :     char       *pgdata_get_env;
    2539             : 
    2540         106 :     if (!pg_data)
    2541             :     {
    2542           0 :         pgdata_get_env = getenv("PGDATA");
    2543           0 :         if (pgdata_get_env && strlen(pgdata_get_env))
    2544             :         {
    2545             :             /* PGDATA found */
    2546           0 :             pg_data = pg_strdup(pgdata_get_env);
    2547             :         }
    2548             :         else
    2549             :         {
    2550           0 :             pg_log_error("no data directory specified");
    2551           0 :             pg_log_error_hint("You must identify the directory where the data for this database system "
    2552             :                               "will reside.  Do this with either the invocation option -D or the "
    2553             :                               "environment variable PGDATA.");
    2554           0 :             exit(1);
    2555             :         }
    2556             :     }
    2557             : 
    2558         106 :     pgdata_native = pg_strdup(pg_data);
    2559         106 :     canonicalize_path(pg_data);
    2560             : 
    2561             :     /*
    2562             :      * we have to set PGDATA for postgres rather than pass it on the command
    2563             :      * line to avoid dumb quoting problems on Windows, and we would especially
    2564             :      * need quotes otherwise on Windows because paths there are most likely to
    2565             :      * have embedded spaces.
    2566             :      */
    2567         106 :     if (setenv("PGDATA", pg_data, 1) != 0)
    2568           0 :         pg_fatal("could not set environment");
    2569         106 : }
    2570             : 
    2571             : 
    2572             : void
    2573         100 : setup_bin_paths(const char *argv0)
    2574             : {
    2575             :     int         ret;
    2576             : 
    2577         100 :     if ((ret = find_other_exec(argv0, "postgres", PG_BACKEND_VERSIONSTR,
    2578             :                                backend_exec)) < 0)
    2579             :     {
    2580             :         char        full_path[MAXPGPATH];
    2581             : 
    2582           0 :         if (find_my_exec(argv0, full_path) < 0)
    2583           0 :             strlcpy(full_path, progname, sizeof(full_path));
    2584             : 
    2585           0 :         if (ret == -1)
    2586           0 :             pg_fatal("program \"%s\" is needed by %s but was not found in the same directory as \"%s\"",
    2587             :                      "postgres", progname, full_path);
    2588             :         else
    2589           0 :             pg_fatal("program \"%s\" was found by \"%s\" but was not the same version as %s",
    2590             :                      "postgres", full_path, progname);
    2591             :     }
    2592             : 
    2593             :     /* store binary directory */
    2594         100 :     strcpy(bin_path, backend_exec);
    2595         100 :     *last_dir_separator(bin_path) = '\0';
    2596         100 :     canonicalize_path(bin_path);
    2597             : 
    2598         100 :     if (!share_path)
    2599             :     {
    2600         100 :         share_path = pg_malloc(MAXPGPATH);
    2601         100 :         get_share_path(backend_exec, share_path);
    2602             :     }
    2603           0 :     else if (!is_absolute_path(share_path))
    2604           0 :         pg_fatal("input file location must be an absolute path");
    2605             : 
    2606         100 :     canonicalize_path(share_path);
    2607         100 : }
    2608             : 
    2609             : void
    2610          98 : setup_locale_encoding(void)
    2611             : {
    2612          98 :     setlocales();
    2613             : 
    2614          92 :     if (locale_provider == COLLPROVIDER_LIBC &&
    2615          70 :         strcmp(lc_ctype, lc_collate) == 0 &&
    2616          70 :         strcmp(lc_ctype, lc_time) == 0 &&
    2617          70 :         strcmp(lc_ctype, lc_numeric) == 0 &&
    2618          70 :         strcmp(lc_ctype, lc_monetary) == 0 &&
    2619          70 :         strcmp(lc_ctype, lc_messages) == 0 &&
    2620          28 :         (!datlocale || strcmp(lc_ctype, datlocale) == 0))
    2621          28 :         printf(_("The database cluster will be initialized with locale \"%s\".\n"), lc_ctype);
    2622             :     else
    2623             :     {
    2624          64 :         printf(_("The database cluster will be initialized with this locale configuration:\n"));
    2625          64 :         printf(_("  locale provider:   %s\n"), collprovider_name(locale_provider));
    2626          64 :         if (locale_provider != COLLPROVIDER_LIBC)
    2627          22 :             printf(_("  default collation: %s\n"), datlocale);
    2628          64 :         printf(_("  LC_COLLATE:  %s\n"
    2629             :                  "  LC_CTYPE:    %s\n"
    2630             :                  "  LC_MESSAGES: %s\n"
    2631             :                  "  LC_MONETARY: %s\n"
    2632             :                  "  LC_NUMERIC:  %s\n"
    2633             :                  "  LC_TIME:     %s\n"),
    2634             :                lc_collate,
    2635             :                lc_ctype,
    2636             :                lc_messages,
    2637             :                lc_monetary,
    2638             :                lc_numeric,
    2639             :                lc_time);
    2640             :     }
    2641             : 
    2642          92 :     if (!encoding)
    2643             :     {
    2644             :         int         ctype_enc;
    2645             : 
    2646          60 :         ctype_enc = pg_get_encoding_from_locale(lc_ctype, true);
    2647             : 
    2648             :         /*
    2649             :          * If ctype_enc=SQL_ASCII, it's compatible with any encoding. ICU does
    2650             :          * not support SQL_ASCII, so select UTF-8 instead.
    2651             :          */
    2652          60 :         if (locale_provider == COLLPROVIDER_ICU && ctype_enc == PG_SQL_ASCII)
    2653           2 :             ctype_enc = PG_UTF8;
    2654             : 
    2655          60 :         if (ctype_enc == -1)
    2656             :         {
    2657             :             /* Couldn't recognize the locale's codeset */
    2658           0 :             pg_log_error("could not find suitable encoding for locale \"%s\"",
    2659             :                          lc_ctype);
    2660           0 :             pg_log_error_hint("Rerun %s with the -E option.", progname);
    2661           0 :             pg_log_error_hint("Try \"%s --help\" for more information.", progname);
    2662           0 :             exit(1);
    2663             :         }
    2664          60 :         else if (!pg_valid_server_encoding_id(ctype_enc))
    2665             :         {
    2666             :             /*
    2667             :              * We recognized it, but it's not a legal server encoding. On
    2668             :              * Windows, UTF-8 works with any locale, so we can fall back to
    2669             :              * UTF-8.
    2670             :              */
    2671             : #ifdef WIN32
    2672             :             encodingid = PG_UTF8;
    2673             :             printf(_("Encoding \"%s\" implied by locale is not allowed as a server-side encoding.\n"
    2674             :                      "The default database encoding will be set to \"%s\" instead.\n"),
    2675             :                    pg_encoding_to_char(ctype_enc),
    2676             :                    pg_encoding_to_char(encodingid));
    2677             : #else
    2678           0 :             pg_log_error("locale \"%s\" requires unsupported encoding \"%s\"",
    2679             :                          lc_ctype, pg_encoding_to_char(ctype_enc));
    2680           0 :             pg_log_error_detail("Encoding \"%s\" is not allowed as a server-side encoding.",
    2681             :                                 pg_encoding_to_char(ctype_enc));
    2682           0 :             pg_log_error_hint("Rerun %s with a different locale selection.",
    2683             :                               progname);
    2684           0 :             exit(1);
    2685             : #endif
    2686             :         }
    2687             :         else
    2688             :         {
    2689          60 :             encodingid = ctype_enc;
    2690          60 :             printf(_("The default database encoding has accordingly been set to \"%s\".\n"),
    2691             :                    pg_encoding_to_char(encodingid));
    2692             :         }
    2693             :     }
    2694             :     else
    2695          32 :         encodingid = get_encoding_id(encoding);
    2696             : 
    2697          92 :     if (!check_locale_encoding(lc_ctype, encodingid) ||
    2698          92 :         !check_locale_encoding(lc_collate, encodingid))
    2699           0 :         exit(1);                /* check_locale_encoding printed the error */
    2700             : 
    2701          92 :     if (locale_provider == COLLPROVIDER_BUILTIN)
    2702             :     {
    2703          10 :         if (strcmp(datlocale, "C.UTF-8") == 0 && encodingid != PG_UTF8)
    2704           2 :             pg_fatal("builtin provider locale \"%s\" requires encoding \"%s\"",
    2705             :                      datlocale, "UTF-8");
    2706             :     }
    2707             : 
    2708          90 :     if (locale_provider == COLLPROVIDER_ICU &&
    2709          12 :         !check_icu_locale_encoding(encodingid))
    2710           2 :         exit(1);
    2711          88 : }
    2712             : 
    2713             : 
    2714             : void
    2715          98 : setup_data_file_paths(void)
    2716             : {
    2717          98 :     set_input(&bki_file, "postgres.bki");
    2718          98 :     set_input(&hba_file, "pg_hba.conf.sample");
    2719          98 :     set_input(&ident_file, "pg_ident.conf.sample");
    2720          98 :     set_input(&conf_file, "postgresql.conf.sample");
    2721          98 :     set_input(&dictionary_file, "snowball_create.sql");
    2722          98 :     set_input(&info_schema_file, "information_schema.sql");
    2723          98 :     set_input(&features_file, "sql_features.txt");
    2724          98 :     set_input(&system_constraints_file, "system_constraints.sql");
    2725          98 :     set_input(&system_functions_file, "system_functions.sql");
    2726          98 :     set_input(&system_views_file, "system_views.sql");
    2727             : 
    2728          98 :     if (show_setting || debug)
    2729             :     {
    2730           0 :         fprintf(stderr,
    2731             :                 "VERSION=%s\n"
    2732             :                 "PGDATA=%s\nshare_path=%s\nPGPATH=%s\n"
    2733             :                 "POSTGRES_SUPERUSERNAME=%s\nPOSTGRES_BKI=%s\n"
    2734             :                 "POSTGRESQL_CONF_SAMPLE=%s\n"
    2735             :                 "PG_HBA_SAMPLE=%s\nPG_IDENT_SAMPLE=%s\n",
    2736             :                 PG_VERSION,
    2737             :                 pg_data, share_path, bin_path,
    2738             :                 username, bki_file,
    2739             :                 conf_file,
    2740             :                 hba_file, ident_file);
    2741           0 :         if (show_setting)
    2742           0 :             exit(0);
    2743             :     }
    2744             : 
    2745          98 :     check_input(bki_file);
    2746          98 :     check_input(hba_file);
    2747          98 :     check_input(ident_file);
    2748          98 :     check_input(conf_file);
    2749          98 :     check_input(dictionary_file);
    2750          98 :     check_input(info_schema_file);
    2751          98 :     check_input(features_file);
    2752          98 :     check_input(system_constraints_file);
    2753          98 :     check_input(system_functions_file);
    2754          98 :     check_input(system_views_file);
    2755          98 : }
    2756             : 
    2757             : 
    2758             : void
    2759          88 : setup_text_search(void)
    2760             : {
    2761          88 :     if (!default_text_search_config)
    2762             :     {
    2763          86 :         default_text_search_config = find_matching_ts_config(lc_ctype);
    2764          86 :         if (!default_text_search_config)
    2765             :         {
    2766           0 :             pg_log_info("could not find suitable text search configuration for locale \"%s\"",
    2767             :                         lc_ctype);
    2768           0 :             default_text_search_config = "simple";
    2769             :         }
    2770             :     }
    2771             :     else
    2772             :     {
    2773           2 :         const char *checkmatch = find_matching_ts_config(lc_ctype);
    2774             : 
    2775           2 :         if (checkmatch == NULL)
    2776             :         {
    2777           0 :             pg_log_warning("suitable text search configuration for locale \"%s\" is unknown",
    2778             :                            lc_ctype);
    2779             :         }
    2780           2 :         else if (strcmp(checkmatch, default_text_search_config) != 0)
    2781             :         {
    2782           2 :             pg_log_warning("specified text search configuration \"%s\" might not match locale \"%s\"",
    2783             :                            default_text_search_config, lc_ctype);
    2784             :         }
    2785             :     }
    2786             : 
    2787          88 :     printf(_("The default text search configuration will be set to \"%s\".\n"),
    2788             :            default_text_search_config);
    2789          88 : }
    2790             : 
    2791             : 
    2792             : void
    2793          88 : setup_signals(void)
    2794             : {
    2795             :     /* some of these are not valid on Windows */
    2796             : #ifdef SIGHUP
    2797          88 :     pqsignal(SIGHUP, trapsig);
    2798             : #endif
    2799             : #ifdef SIGINT
    2800          88 :     pqsignal(SIGINT, trapsig);
    2801             : #endif
    2802             : #ifdef SIGQUIT
    2803          88 :     pqsignal(SIGQUIT, trapsig);
    2804             : #endif
    2805             : #ifdef SIGTERM
    2806          88 :     pqsignal(SIGTERM, trapsig);
    2807             : #endif
    2808             : 
    2809             :     /* Ignore SIGPIPE when writing to backend, so we can clean up */
    2810             : #ifdef SIGPIPE
    2811          88 :     pqsignal(SIGPIPE, SIG_IGN);
    2812             : #endif
    2813             : 
    2814             :     /* Prevent SIGSYS so we can probe for kernel calls that might not work */
    2815             : #ifdef SIGSYS
    2816          88 :     pqsignal(SIGSYS, SIG_IGN);
    2817             : #endif
    2818          88 : }
    2819             : 
    2820             : 
    2821             : void
    2822          88 : create_data_directory(void)
    2823             : {
    2824             :     int         ret;
    2825             : 
    2826          88 :     switch ((ret = pg_check_dir(pg_data)))
    2827             :     {
    2828          84 :         case 0:
    2829             :             /* PGDATA not there, must create it */
    2830          84 :             printf(_("creating directory %s ... "),
    2831             :                    pg_data);
    2832          84 :             fflush(stdout);
    2833             : 
    2834          84 :             if (pg_mkdir_p(pg_data, pg_dir_create_mode) != 0)
    2835           0 :                 pg_fatal("could not create directory \"%s\": %m", pg_data);
    2836             :             else
    2837          84 :                 check_ok();
    2838             : 
    2839          84 :             made_new_pgdata = true;
    2840          84 :             break;
    2841             : 
    2842           2 :         case 1:
    2843             :             /* Present but empty, fix permissions and use it */
    2844           2 :             printf(_("fixing permissions on existing directory %s ... "),
    2845             :                    pg_data);
    2846           2 :             fflush(stdout);
    2847             : 
    2848           2 :             if (chmod(pg_data, pg_dir_create_mode) != 0)
    2849           0 :                 pg_fatal("could not change permissions of directory \"%s\": %m",
    2850             :                          pg_data);
    2851             :             else
    2852           2 :                 check_ok();
    2853             : 
    2854           2 :             found_existing_pgdata = true;
    2855           2 :             break;
    2856             : 
    2857           2 :         case 2:
    2858             :         case 3:
    2859             :         case 4:
    2860             :             /* Present and not empty */
    2861           2 :             pg_log_error("directory \"%s\" exists but is not empty", pg_data);
    2862           2 :             if (ret != 4)
    2863           0 :                 warn_on_mount_point(ret);
    2864             :             else
    2865           2 :                 pg_log_error_hint("If you want to create a new database system, either remove or empty "
    2866             :                                   "the directory \"%s\" or run %s "
    2867             :                                   "with an argument other than \"%s\".",
    2868             :                                   pg_data, progname, pg_data);
    2869           2 :             exit(1);            /* no further message needed */
    2870             : 
    2871           0 :         default:
    2872             :             /* Trouble accessing directory */
    2873           0 :             pg_fatal("could not access directory \"%s\": %m", pg_data);
    2874             :     }
    2875          86 : }
    2876             : 
    2877             : 
    2878             : /* Create WAL directory, and symlink if required */
    2879             : void
    2880          86 : create_xlog_or_symlink(void)
    2881             : {
    2882             :     char       *subdirloc;
    2883             : 
    2884             :     /* form name of the place for the subdirectory or symlink */
    2885          86 :     subdirloc = psprintf("%s/pg_wal", pg_data);
    2886             : 
    2887          86 :     if (xlog_dir)
    2888             :     {
    2889             :         int         ret;
    2890             : 
    2891             :         /* clean up xlog directory name, check it's absolute */
    2892           6 :         canonicalize_path(xlog_dir);
    2893           6 :         if (!is_absolute_path(xlog_dir))
    2894           2 :             pg_fatal("WAL directory location must be an absolute path");
    2895             : 
    2896             :         /* check if the specified xlog directory exists/is empty */
    2897           4 :         switch ((ret = pg_check_dir(xlog_dir)))
    2898             :         {
    2899           0 :             case 0:
    2900             :                 /* xlog directory not there, must create it */
    2901           0 :                 printf(_("creating directory %s ... "),
    2902             :                        xlog_dir);
    2903           0 :                 fflush(stdout);
    2904             : 
    2905           0 :                 if (pg_mkdir_p(xlog_dir, pg_dir_create_mode) != 0)
    2906           0 :                     pg_fatal("could not create directory \"%s\": %m",
    2907             :                              xlog_dir);
    2908             :                 else
    2909           0 :                     check_ok();
    2910             : 
    2911           0 :                 made_new_xlogdir = true;
    2912           0 :                 break;
    2913             : 
    2914           2 :             case 1:
    2915             :                 /* Present but empty, fix permissions and use it */
    2916           2 :                 printf(_("fixing permissions on existing directory %s ... "),
    2917             :                        xlog_dir);
    2918           2 :                 fflush(stdout);
    2919             : 
    2920           2 :                 if (chmod(xlog_dir, pg_dir_create_mode) != 0)
    2921           0 :                     pg_fatal("could not change permissions of directory \"%s\": %m",
    2922             :                              xlog_dir);
    2923             :                 else
    2924           2 :                     check_ok();
    2925             : 
    2926           2 :                 found_existing_xlogdir = true;
    2927           2 :                 break;
    2928             : 
    2929           2 :             case 2:
    2930             :             case 3:
    2931             :             case 4:
    2932             :                 /* Present and not empty */
    2933           2 :                 pg_log_error("directory \"%s\" exists but is not empty", xlog_dir);
    2934           2 :                 if (ret != 4)
    2935           2 :                     warn_on_mount_point(ret);
    2936             :                 else
    2937           0 :                     pg_log_error_hint("If you want to store the WAL there, either remove or empty the directory \"%s\".",
    2938             :                                       xlog_dir);
    2939           2 :                 exit(1);
    2940             : 
    2941           0 :             default:
    2942             :                 /* Trouble accessing directory */
    2943           0 :                 pg_fatal("could not access directory \"%s\": %m", xlog_dir);
    2944             :         }
    2945             : 
    2946           2 :         if (symlink(xlog_dir, subdirloc) != 0)
    2947           0 :             pg_fatal("could not create symbolic link \"%s\": %m",
    2948             :                      subdirloc);
    2949             :     }
    2950             :     else
    2951             :     {
    2952             :         /* Without -X option, just make the subdirectory normally */
    2953          80 :         if (mkdir(subdirloc, pg_dir_create_mode) < 0)
    2954           0 :             pg_fatal("could not create directory \"%s\": %m",
    2955             :                      subdirloc);
    2956             :     }
    2957             : 
    2958          82 :     free(subdirloc);
    2959          82 : }
    2960             : 
    2961             : 
    2962             : void
    2963           2 : warn_on_mount_point(int error)
    2964             : {
    2965           2 :     if (error == 2)
    2966           0 :         pg_log_error_detail("It contains a dot-prefixed/invisible file, perhaps due to it being a mount point.");
    2967           2 :     else if (error == 3)
    2968           2 :         pg_log_error_detail("It contains a lost+found directory, perhaps due to it being a mount point.");
    2969             : 
    2970           2 :     pg_log_error_hint("Using a mount point directly as the data directory is not recommended.\n"
    2971             :                       "Create a subdirectory under the mount point.");
    2972           2 : }
    2973             : 
    2974             : 
    2975             : void
    2976          88 : initialize_data_directory(void)
    2977             : {
    2978             :     PG_CMD_DECL;
    2979             :     PQExpBufferData cmd;
    2980             :     int         i;
    2981             : 
    2982          88 :     setup_signals();
    2983             : 
    2984             :     /*
    2985             :      * Set mask based on requested PGDATA permissions.  pg_mode_mask, and
    2986             :      * friends like pg_dir_create_mode, are set to owner-only by default and
    2987             :      * then updated if -g is passed in by calling SetDataDirectoryCreatePerm()
    2988             :      * when parsing our options (see above).
    2989             :      */
    2990          88 :     umask(pg_mode_mask);
    2991             : 
    2992          88 :     create_data_directory();
    2993             : 
    2994          86 :     create_xlog_or_symlink();
    2995             : 
    2996             :     /* Create required subdirectories (other than pg_wal) */
    2997          82 :     printf(_("creating subdirectories ... "));
    2998          82 :     fflush(stdout);
    2999             : 
    3000        1968 :     for (i = 0; i < lengthof(subdirs); i++)
    3001             :     {
    3002             :         char       *path;
    3003             : 
    3004        1886 :         path = psprintf("%s/%s", pg_data, subdirs[i]);
    3005             : 
    3006             :         /*
    3007             :          * The parent directory already exists, so we only need mkdir() not
    3008             :          * pg_mkdir_p() here, which avoids some failure modes; cf bug #13853.
    3009             :          */
    3010        1886 :         if (mkdir(path, pg_dir_create_mode) < 0)
    3011           0 :             pg_fatal("could not create directory \"%s\": %m", path);
    3012             : 
    3013        1886 :         free(path);
    3014             :     }
    3015             : 
    3016          82 :     check_ok();
    3017             : 
    3018             :     /* Top level PG_VERSION is checked by bootstrapper, so make it first */
    3019          82 :     write_version_file(NULL);
    3020             : 
    3021             :     /* Select suitable configuration settings */
    3022          82 :     set_null_conf();
    3023          82 :     test_config_settings();
    3024             : 
    3025             :     /* Now create all the text config files */
    3026          82 :     setup_config();
    3027             : 
    3028             :     /* Bootstrap template1 */
    3029          82 :     bootstrap_template1();
    3030             : 
    3031             :     /*
    3032             :      * Make the per-database PG_VERSION for template1 only after init'ing it
    3033             :      */
    3034          80 :     write_version_file("base/1");
    3035             : 
    3036             :     /*
    3037             :      * Create the stuff we don't need to use bootstrap mode for, using a
    3038             :      * backend running in simple standalone mode.
    3039             :      */
    3040          80 :     fputs(_("performing post-bootstrap initialization ... "), stdout);
    3041          80 :     fflush(stdout);
    3042             : 
    3043          80 :     initPQExpBuffer(&cmd);
    3044          80 :     printfPQExpBuffer(&cmd, "\"%s\" %s %s template1 >%s",
    3045             :                       backend_exec, backend_options, extra_options, DEVNULL);
    3046             : 
    3047          80 :     PG_CMD_OPEN(cmd.data);
    3048             : 
    3049          80 :     setup_auth(cmdfd);
    3050             : 
    3051          80 :     setup_run_file(cmdfd, system_constraints_file);
    3052             : 
    3053          80 :     setup_run_file(cmdfd, system_functions_file);
    3054             : 
    3055          80 :     setup_depend(cmdfd);
    3056             : 
    3057             :     /*
    3058             :      * Note that no objects created after setup_depend() will be "pinned".
    3059             :      * They are all droppable at the whim of the DBA.
    3060             :      */
    3061             : 
    3062          80 :     setup_run_file(cmdfd, system_views_file);
    3063             : 
    3064          80 :     setup_description(cmdfd);
    3065             : 
    3066          80 :     setup_collation(cmdfd);
    3067             : 
    3068          80 :     setup_run_file(cmdfd, dictionary_file);
    3069             : 
    3070          80 :     setup_privileges(cmdfd);
    3071             : 
    3072          80 :     setup_schema(cmdfd);
    3073             : 
    3074          80 :     load_plpgsql(cmdfd);
    3075             : 
    3076          80 :     vacuum_db(cmdfd);
    3077             : 
    3078          80 :     make_template0(cmdfd);
    3079             : 
    3080          80 :     make_postgres(cmdfd);
    3081             : 
    3082          80 :     PG_CMD_CLOSE();
    3083          76 :     termPQExpBuffer(&cmd);
    3084             : 
    3085          76 :     check_ok();
    3086          76 : }
    3087             : 
    3088             : 
    3089             : int
    3090         140 : main(int argc, char *argv[])
    3091             : {
    3092             :     static struct option long_options[] = {
    3093             :         {"pgdata", required_argument, NULL, 'D'},
    3094             :         {"encoding", required_argument, NULL, 'E'},
    3095             :         {"locale", required_argument, NULL, 1},
    3096             :         {"lc-collate", required_argument, NULL, 2},
    3097             :         {"lc-ctype", required_argument, NULL, 3},
    3098             :         {"lc-monetary", required_argument, NULL, 4},
    3099             :         {"lc-numeric", required_argument, NULL, 5},
    3100             :         {"lc-time", required_argument, NULL, 6},
    3101             :         {"lc-messages", required_argument, NULL, 7},
    3102             :         {"no-locale", no_argument, NULL, 8},
    3103             :         {"text-search-config", required_argument, NULL, 'T'},
    3104             :         {"auth", required_argument, NULL, 'A'},
    3105             :         {"auth-local", required_argument, NULL, 10},
    3106             :         {"auth-host", required_argument, NULL, 11},
    3107             :         {"pwprompt", no_argument, NULL, 'W'},
    3108             :         {"pwfile", required_argument, NULL, 9},
    3109             :         {"username", required_argument, NULL, 'U'},
    3110             :         {"help", no_argument, NULL, '?'},
    3111             :         {"version", no_argument, NULL, 'V'},
    3112             :         {"debug", no_argument, NULL, 'd'},
    3113             :         {"show", no_argument, NULL, 's'},
    3114             :         {"noclean", no_argument, NULL, 'n'},  /* for backwards compatibility */
    3115             :         {"no-clean", no_argument, NULL, 'n'},
    3116             :         {"nosync", no_argument, NULL, 'N'}, /* for backwards compatibility */
    3117             :         {"no-sync", no_argument, NULL, 'N'},
    3118             :         {"no-instructions", no_argument, NULL, 13},
    3119             :         {"set", required_argument, NULL, 'c'},
    3120             :         {"sync-only", no_argument, NULL, 'S'},
    3121             :         {"waldir", required_argument, NULL, 'X'},
    3122             :         {"wal-segsize", required_argument, NULL, 12},
    3123             :         {"data-checksums", no_argument, NULL, 'k'},
    3124             :         {"allow-group-access", no_argument, NULL, 'g'},
    3125             :         {"discard-caches", no_argument, NULL, 14},
    3126             :         {"locale-provider", required_argument, NULL, 15},
    3127             :         {"builtin-locale", required_argument, NULL, 16},
    3128             :         {"icu-locale", required_argument, NULL, 17},
    3129             :         {"icu-rules", required_argument, NULL, 18},
    3130             :         {"sync-method", required_argument, NULL, 19},
    3131             :         {NULL, 0, NULL, 0}
    3132             :     };
    3133             : 
    3134             :     /*
    3135             :      * options with no short version return a low integer, the rest return
    3136             :      * their short version value
    3137             :      */
    3138             :     int         c;
    3139             :     int         option_index;
    3140             :     char       *effective_user;
    3141             :     PQExpBuffer start_db_cmd;
    3142             :     char        pg_ctl_path[MAXPGPATH];
    3143             : 
    3144             :     /*
    3145             :      * Ensure that buffering behavior of stdout matches what it is in
    3146             :      * interactive usage (at least on most platforms).  This prevents
    3147             :      * unexpected output ordering when, eg, output is redirected to a file.
    3148             :      * POSIX says we must do this before any other usage of these files.
    3149             :      */
    3150         140 :     setvbuf(stdout, NULL, PG_IOLBF, 0);
    3151             : 
    3152         140 :     pg_logging_init(argv[0]);
    3153         140 :     progname = get_progname(argv[0]);
    3154         140 :     set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("initdb"));
    3155             : 
    3156         140 :     if (argc > 1)
    3157             :     {
    3158         140 :         if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
    3159             :         {
    3160           2 :             usage(progname);
    3161           2 :             exit(0);
    3162             :         }
    3163         138 :         if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
    3164             :         {
    3165          22 :             puts("initdb (PostgreSQL) " PG_VERSION);
    3166          22 :             exit(0);
    3167             :         }
    3168             :     }
    3169             : 
    3170             :     /* process command-line options */
    3171             : 
    3172         548 :     while ((c = getopt_long(argc, argv, "A:c:dD:E:gkL:nNsST:U:WX:",
    3173             :                             long_options, &option_index)) != -1)
    3174             :     {
    3175         436 :         switch (c)
    3176             :         {
    3177          56 :             case 'A':
    3178          56 :                 authmethodlocal = authmethodhost = pg_strdup(optarg);
    3179             : 
    3180             :                 /*
    3181             :                  * When ident is specified, use peer for local connections.
    3182             :                  * Mirrored, when peer is specified, use ident for TCP/IP
    3183             :                  * connections.
    3184             :                  */
    3185          56 :                 if (strcmp(authmethodhost, "ident") == 0)
    3186           0 :                     authmethodlocal = "peer";
    3187          56 :                 else if (strcmp(authmethodlocal, "peer") == 0)
    3188           0 :                     authmethodhost = "ident";
    3189          56 :                 break;
    3190           0 :             case 10:
    3191           0 :                 authmethodlocal = pg_strdup(optarg);
    3192           0 :                 break;
    3193           0 :             case 11:
    3194           0 :                 authmethodhost = pg_strdup(optarg);
    3195           0 :                 break;
    3196          10 :             case 'c':
    3197             :                 {
    3198          10 :                     char       *buf = pg_strdup(optarg);
    3199          10 :                     char       *equals = strchr(buf, '=');
    3200             : 
    3201          10 :                     if (!equals)
    3202             :                     {
    3203           0 :                         pg_log_error("-c %s requires a value", buf);
    3204           0 :                         pg_log_error_hint("Try \"%s --help\" for more information.",
    3205             :                                           progname);
    3206           0 :                         exit(1);
    3207             :                     }
    3208          10 :                     *equals++ = '\0';   /* terminate variable name */
    3209          10 :                     add_stringlist_item(&extra_guc_names, buf);
    3210          10 :                     add_stringlist_item(&extra_guc_values, equals);
    3211          10 :                     pfree(buf);
    3212             :                 }
    3213          10 :                 break;
    3214          56 :             case 'D':
    3215          56 :                 pg_data = pg_strdup(optarg);
    3216          56 :                 break;
    3217          32 :             case 'E':
    3218          32 :                 encoding = pg_strdup(optarg);
    3219          32 :                 break;
    3220           0 :             case 'W':
    3221           0 :                 pwprompt = true;
    3222           0 :                 break;
    3223           8 :             case 'U':
    3224           8 :                 username = pg_strdup(optarg);
    3225           8 :                 break;
    3226           0 :             case 'd':
    3227           0 :                 debug = true;
    3228           0 :                 printf(_("Running in debug mode.\n"));
    3229           0 :                 break;
    3230           8 :             case 'n':
    3231           8 :                 noclean = true;
    3232           8 :                 printf(_("Running in no-clean mode.  Mistakes will not be cleaned up.\n"));
    3233           8 :                 break;
    3234          96 :             case 'N':
    3235          96 :                 do_sync = false;
    3236          96 :                 break;
    3237           6 :             case 'S':
    3238           6 :                 sync_only = true;
    3239           6 :                 break;
    3240           2 :             case 'k':
    3241           2 :                 data_checksums = true;
    3242           2 :                 break;
    3243           0 :             case 'L':
    3244           0 :                 share_path = pg_strdup(optarg);
    3245           0 :                 break;
    3246          30 :             case 1:
    3247          30 :                 locale = pg_strdup(optarg);
    3248          30 :                 break;
    3249           8 :             case 2:
    3250           8 :                 lc_collate = pg_strdup(optarg);
    3251           8 :                 break;
    3252          10 :             case 3:
    3253          10 :                 lc_ctype = pg_strdup(optarg);
    3254          10 :                 break;
    3255           2 :             case 4:
    3256           2 :                 lc_monetary = pg_strdup(optarg);
    3257           2 :                 break;
    3258           2 :             case 5:
    3259           2 :                 lc_numeric = pg_strdup(optarg);
    3260           2 :                 break;
    3261           2 :             case 6:
    3262           2 :                 lc_time = pg_strdup(optarg);
    3263           2 :                 break;
    3264           6 :             case 7:
    3265           6 :                 lc_messages = pg_strdup(optarg);
    3266           6 :                 break;
    3267           4 :             case 8:
    3268           4 :                 locale = "C";
    3269           4 :                 break;
    3270           0 :             case 9:
    3271           0 :                 pwfilename = pg_strdup(optarg);
    3272           0 :                 break;
    3273           0 :             case 's':
    3274           0 :                 show_setting = true;
    3275           0 :                 break;
    3276           2 :             case 'T':
    3277           2 :                 default_text_search_config = pg_strdup(optarg);
    3278           2 :                 break;
    3279           6 :             case 'X':
    3280           6 :                 xlog_dir = pg_strdup(optarg);
    3281           6 :                 break;
    3282          10 :             case 12:
    3283          10 :                 if (!option_parse_int(optarg, "--wal-segsize", 1, 1024, &wal_segment_size_mb))
    3284           0 :                     exit(1);
    3285          10 :                 break;
    3286           4 :             case 13:
    3287           4 :                 noinstructions = true;
    3288           4 :                 break;
    3289          10 :             case 'g':
    3290          10 :                 SetDataDirectoryCreatePerm(PG_DIR_MODE_GROUP);
    3291          10 :                 break;
    3292           0 :             case 14:
    3293           0 :                 extra_options = psprintf("%s %s",
    3294             :                                          extra_options,
    3295             :                                          "-c debug_discard_caches=1");
    3296           0 :                 break;
    3297          38 :             case 15:
    3298          38 :                 if (strcmp(optarg, "builtin") == 0)
    3299          16 :                     locale_provider = COLLPROVIDER_BUILTIN;
    3300          22 :                 else if (strcmp(optarg, "icu") == 0)
    3301          16 :                     locale_provider = COLLPROVIDER_ICU;
    3302           6 :                 else if (strcmp(optarg, "libc") == 0)
    3303           4 :                     locale_provider = COLLPROVIDER_LIBC;
    3304             :                 else
    3305           2 :                     pg_fatal("unrecognized locale provider: %s", optarg);
    3306          36 :                 break;
    3307           6 :             case 16:
    3308           6 :                 datlocale = pg_strdup(optarg);
    3309           6 :                 builtin_locale_specified = true;
    3310           6 :                 break;
    3311          16 :             case 17:
    3312          16 :                 datlocale = pg_strdup(optarg);
    3313          16 :                 icu_locale_specified = true;
    3314          16 :                 break;
    3315           2 :             case 18:
    3316           2 :                 icu_rules = pg_strdup(optarg);
    3317           2 :                 break;
    3318           2 :             case 19:
    3319           2 :                 if (!parse_sync_method(optarg, &sync_method))
    3320           0 :                     exit(1);
    3321           2 :                 break;
    3322           2 :             default:
    3323             :                 /* getopt_long already emitted a complaint */
    3324           2 :                 pg_log_error_hint("Try \"%s --help\" for more information.", progname);
    3325           2 :                 exit(1);
    3326             :         }
    3327             :     }
    3328             : 
    3329             : 
    3330             :     /*
    3331             :      * Non-option argument specifies data directory as long as it wasn't
    3332             :      * already specified with -D / --pgdata
    3333             :      */
    3334         112 :     if (optind < argc && !pg_data)
    3335             :     {
    3336          56 :         pg_data = pg_strdup(argv[optind]);
    3337          56 :         optind++;
    3338             :     }
    3339             : 
    3340         112 :     if (optind < argc)
    3341             :     {
    3342           0 :         pg_log_error("too many command-line arguments (first is \"%s\")",
    3343             :                      argv[optind]);
    3344           0 :         pg_log_error_hint("Try \"%s --help\" for more information.", progname);
    3345           0 :         exit(1);
    3346             :     }
    3347             : 
    3348         112 :     if (builtin_locale_specified && locale_provider != COLLPROVIDER_BUILTIN)
    3349           0 :         pg_fatal("%s cannot be specified unless locale provider \"%s\" is chosen",
    3350             :                  "--builtin-locale", "builtin");
    3351             : 
    3352         112 :     if (icu_locale_specified && locale_provider != COLLPROVIDER_ICU)
    3353           4 :         pg_fatal("%s cannot be specified unless locale provider \"%s\" is chosen",
    3354             :                  "--icu-locale", "icu");
    3355             : 
    3356         108 :     if (icu_rules && locale_provider != COLLPROVIDER_ICU)
    3357           2 :         pg_fatal("%s cannot be specified unless locale provider \"%s\" is chosen",
    3358             :                  "--icu-rules", "icu");
    3359             : 
    3360         106 :     atexit(cleanup_directories_atexit);
    3361             : 
    3362             :     /* If we only need to sync, just do it and exit */
    3363         106 :     if (sync_only)
    3364             :     {
    3365           6 :         setup_pgdata();
    3366             : 
    3367             :         /* must check that directory is readable */
    3368           6 :         if (pg_check_dir(pg_data) <= 0)
    3369           2 :             pg_fatal("could not access directory \"%s\": %m", pg_data);
    3370             : 
    3371           4 :         fputs(_("syncing data to disk ... "), stdout);
    3372           4 :         fflush(stdout);
    3373           4 :         sync_pgdata(pg_data, PG_VERSION_NUM, sync_method);
    3374           4 :         check_ok();
    3375           4 :         return 0;
    3376             :     }
    3377             : 
    3378         100 :     if (pwprompt && pwfilename)
    3379           0 :         pg_fatal("password prompt and password file cannot be specified together");
    3380             : 
    3381         100 :     check_authmethod_unspecified(&authmethodlocal);
    3382         100 :     check_authmethod_unspecified(&authmethodhost);
    3383             : 
    3384         100 :     check_authmethod_valid(authmethodlocal, auth_methods_local, "local");
    3385         100 :     check_authmethod_valid(authmethodhost, auth_methods_host, "host");
    3386             : 
    3387         100 :     check_need_password(authmethodlocal, authmethodhost);
    3388             : 
    3389         100 :     if (!IsValidWalSegSize(wal_segment_size_mb * 1024 * 1024))
    3390           0 :         pg_fatal("argument of %s must be a power of two between 1 and 1024", "--wal-segsize");
    3391             : 
    3392         100 :     get_restricted_token();
    3393             : 
    3394         100 :     setup_pgdata();
    3395             : 
    3396         100 :     setup_bin_paths(argv[0]);
    3397             : 
    3398         100 :     effective_user = get_id();
    3399         100 :     if (!username)
    3400          92 :         username = effective_user;
    3401             : 
    3402         100 :     if (strncmp(username, "pg_", 3) == 0)
    3403           2 :         pg_fatal("superuser name \"%s\" is disallowed; role names cannot begin with \"pg_\"", username);
    3404             : 
    3405          98 :     printf(_("The files belonging to this database system will be owned "
    3406             :              "by user \"%s\".\n"
    3407             :              "This user must also own the server process.\n\n"),
    3408             :            effective_user);
    3409             : 
    3410          98 :     set_info_version();
    3411             : 
    3412          98 :     setup_data_file_paths();
    3413             : 
    3414          98 :     setup_locale_encoding();
    3415             : 
    3416          88 :     setup_text_search();
    3417             : 
    3418          88 :     printf("\n");
    3419             : 
    3420          88 :     if (data_checksums)
    3421           2 :         printf(_("Data page checksums are enabled.\n"));
    3422             :     else
    3423          86 :         printf(_("Data page checksums are disabled.\n"));
    3424             : 
    3425          88 :     if (pwprompt || pwfilename)
    3426           0 :         get_su_pwd();
    3427             : 
    3428          88 :     printf("\n");
    3429             : 
    3430          88 :     initialize_data_directory();
    3431             : 
    3432          76 :     if (do_sync)
    3433             :     {
    3434           4 :         fputs(_("syncing data to disk ... "), stdout);
    3435           4 :         fflush(stdout);
    3436           4 :         sync_pgdata(pg_data, PG_VERSION_NUM, sync_method);
    3437           4 :         check_ok();
    3438             :     }
    3439             :     else
    3440          72 :         printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
    3441             : 
    3442          76 :     if (authwarning)
    3443             :     {
    3444          20 :         printf("\n");
    3445          20 :         pg_log_warning("enabling \"trust\" authentication for local connections");
    3446          20 :         pg_log_warning_hint("You can change this by editing pg_hba.conf or using the option -A, or "
    3447             :                             "--auth-local and --auth-host, the next time you run initdb.");
    3448             :     }
    3449             : 
    3450          76 :     if (!noinstructions)
    3451             :     {
    3452             :         /*
    3453             :          * Build up a shell command to tell the user how to start the server
    3454             :          */
    3455          72 :         start_db_cmd = createPQExpBuffer();
    3456             : 
    3457             :         /* Get directory specification used to start initdb ... */
    3458          72 :         strlcpy(pg_ctl_path, argv[0], sizeof(pg_ctl_path));
    3459          72 :         canonicalize_path(pg_ctl_path);
    3460          72 :         get_parent_directory(pg_ctl_path);
    3461             :         /* ... and tag on pg_ctl instead */
    3462          72 :         join_path_components(pg_ctl_path, pg_ctl_path, "pg_ctl");
    3463             : 
    3464             :         /* Convert the path to use native separators */
    3465          72 :         make_native_path(pg_ctl_path);
    3466             : 
    3467             :         /* path to pg_ctl, properly quoted */
    3468          72 :         appendShellString(start_db_cmd, pg_ctl_path);
    3469             : 
    3470             :         /* add -D switch, with properly quoted data directory */
    3471          72 :         appendPQExpBufferStr(start_db_cmd, " -D ");
    3472          72 :         appendShellString(start_db_cmd, pgdata_native);
    3473             : 
    3474             :         /* add suggested -l switch and "start" command */
    3475             :         /* translator: This is a placeholder in a shell command. */
    3476          72 :         appendPQExpBuffer(start_db_cmd, " -l %s start", _("logfile"));
    3477             : 
    3478          72 :         printf(_("\nSuccess. You can now start the database server using:\n\n"
    3479             :                  "    %s\n\n"),
    3480             :                start_db_cmd->data);
    3481             : 
    3482          72 :         destroyPQExpBuffer(start_db_cmd);
    3483             :     }
    3484             : 
    3485             : 
    3486          76 :     success = true;
    3487          76 :     return 0;
    3488             : }

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