LCOV - code coverage report
Current view: top level - src/interfaces/ecpg/preproc - output.c (source / functions) Coverage Total Hit
Test: PostgreSQL 19devel Lines: 94.4 % 125 118
Test Date: 2026-03-03 13:15:30 Functions: 100.0 % 9 9
Legend: Lines:     hit not hit

            Line data    Source code
       1              : /* src/interfaces/ecpg/preproc/output.c */
       2              : 
       3              : #include "postgres_fe.h"
       4              : 
       5              : #include "preproc_extern.h"
       6              : 
       7              : static void output_escaped_str(const char *str, bool quoted);
       8              : 
       9              : void
      10         2598 : output_line_number(void)
      11              : {
      12         2598 :     char       *line = hashline_number();
      13              : 
      14         2598 :     fprintf(base_yyout, "%s", line);
      15         2598 : }
      16              : 
      17              : void
      18          150 : output_simple_statement(const char *stmt, int whenever_mode)
      19              : {
      20          150 :     output_escaped_str(stmt, false);
      21          150 :     if (whenever_mode)
      22           13 :         whenever_action(whenever_mode);
      23          150 :     output_line_number();
      24          150 : }
      25              : 
      26              : 
      27              : /*
      28              :  * store the whenever action here
      29              :  */
      30              : struct when when_error,
      31              :             when_nf,
      32              :             when_warn;
      33              : 
      34              : static void
      35         1039 : print_action(struct when *w)
      36              : {
      37         1039 :     switch (w->code)
      38              :     {
      39          558 :         case W_SQLPRINT:
      40          558 :             fprintf(base_yyout, "sqlprint();");
      41          558 :             break;
      42            2 :         case W_GOTO:
      43            2 :             fprintf(base_yyout, "goto %s;", w->command);
      44            2 :             break;
      45          173 :         case W_DO:
      46          173 :             fprintf(base_yyout, "%s;", w->command);
      47          173 :             break;
      48          293 :         case W_STOP:
      49          293 :             fprintf(base_yyout, "exit (1);");
      50          293 :             break;
      51           12 :         case W_BREAK:
      52           12 :             fprintf(base_yyout, "break;");
      53           12 :             break;
      54            1 :         case W_CONTINUE:
      55            1 :             fprintf(base_yyout, "continue;");
      56            1 :             break;
      57            0 :         default:
      58            0 :             fprintf(base_yyout, "{/* %d not implemented yet */}", w->code);
      59            0 :             break;
      60              :     }
      61         1039 : }
      62              : 
      63              : void
      64         1029 : whenever_action(int mode)
      65              : {
      66         1029 :     if ((mode & 1) == 1 && when_nf.code != W_NOTHING)
      67              :     {
      68           29 :         output_line_number();
      69           29 :         fprintf(base_yyout, "\nif (sqlca.sqlcode == ECPG_NOT_FOUND) ");
      70           29 :         print_action(&when_nf);
      71              :     }
      72         1029 :     if (when_warn.code != W_NOTHING)
      73              :     {
      74          144 :         output_line_number();
      75          144 :         fprintf(base_yyout, "\nif (sqlca.sqlwarn[0] == 'W') ");
      76          144 :         print_action(&when_warn);
      77              :     }
      78         1029 :     if (when_error.code != W_NOTHING)
      79              :     {
      80          866 :         output_line_number();
      81          866 :         fprintf(base_yyout, "\nif (sqlca.sqlcode < 0) ");
      82          866 :         print_action(&when_error);
      83              :     }
      84              : 
      85         1029 :     if ((mode & 2) == 2)
      86          982 :         fputc('}', base_yyout);
      87              : 
      88         1029 :     output_line_number();
      89         1029 : }
      90              : 
      91              : char *
      92         2901 : hashline_number(void)
      93              : {
      94              :     /* do not print line numbers if we are in debug mode */
      95         2901 :     if (input_filename
      96              : #ifdef YYDEBUG
      97              :         && !base_yydebug
      98              : #endif
      99              :         )
     100              :     {
     101              :         /* "* 2" here is for escaping '\' and '"' below */
     102         2901 :         char       *line = loc_alloc(strlen("\n#line %d \"%s\"\n") + sizeof(int) * CHAR_BIT * 10 / 3 + strlen(input_filename) * 2);
     103              :         char       *src,
     104              :                    *dest;
     105              : 
     106         2901 :         sprintf(line, "\n#line %d \"", base_yylineno);
     107         2901 :         src = input_filename;
     108         2901 :         dest = line + strlen(line);
     109        37653 :         while (*src)
     110              :         {
     111        34752 :             if (*src == '\\' || *src == '"')
     112            0 :                 *dest++ = '\\';
     113        34752 :             *dest++ = *src++;
     114              :         }
     115         2901 :         *dest = '\0';
     116         2901 :         strcat(dest, "\"\n");
     117              : 
     118         2901 :         return line;
     119              :     }
     120              : 
     121            0 :     return "";
     122              : }
     123              : 
     124              : static char *ecpg_statement_type_name[] = {
     125              :     "ECPGst_normal",
     126              :     "ECPGst_execute",
     127              :     "ECPGst_exec_immediate",
     128              :     "ECPGst_prepnormal",
     129              :     "ECPGst_prepare",
     130              :     "ECPGst_exec_with_exprlist"
     131              : };
     132              : 
     133              : void
     134          552 : output_statement(const char *stmt, int whenever_mode, enum ECPG_statement_type st)
     135              : {
     136          552 :     fprintf(base_yyout, "{ ECPGdo(__LINE__, %d, %d, %s, %d, ", compat, force_indicator, connection ? connection : "NULL", questionmarks);
     137              : 
     138          552 :     if (st == ECPGst_prepnormal && !auto_prepare)
     139          215 :         st = ECPGst_normal;
     140              : 
     141              :     /*
     142              :      * In following cases, stmt is CSTRING or char_variable. They must be
     143              :      * output directly. - prepared_name of EXECUTE without exprlist -
     144              :      * execstring of EXECUTE IMMEDIATE
     145              :      */
     146          552 :     fprintf(base_yyout, "%s, ", ecpg_statement_type_name[st]);
     147          552 :     if (st == ECPGst_execute || st == ECPGst_exec_immediate)
     148           31 :         fprintf(base_yyout, "%s, ", stmt);
     149              :     else
     150              :     {
     151          521 :         fputs("\"", base_yyout);
     152          521 :         output_escaped_str(stmt, false);
     153          521 :         fputs("\", ", base_yyout);
     154              :     }
     155              : 
     156              :     /* dump variables to C file */
     157          552 :     dump_variables(argsinsert, 1);
     158          552 :     argsinsert = NULL;
     159          552 :     fputs("ECPGt_EOIT, ", base_yyout);
     160          552 :     dump_variables(argsresult, 1);
     161          552 :     argsresult = NULL;
     162          552 :     fputs("ECPGt_EORT);", base_yyout);
     163              : 
     164          552 :     whenever_action(whenever_mode | 2);
     165          552 : }
     166              : 
     167              : void
     168           48 : output_prepare_statement(const char *name, const char *stmt)
     169              : {
     170           48 :     fprintf(base_yyout, "{ ECPGprepare(__LINE__, %s, %d, ", connection ? connection : "NULL", questionmarks);
     171           48 :     output_escaped_str(name, true);
     172           48 :     fputs(", ", base_yyout);
     173           48 :     output_escaped_str(stmt, true);
     174           48 :     fputs(");", base_yyout);
     175           48 :     whenever_action(2);
     176           48 : }
     177              : 
     178              : void
     179           38 : output_deallocate_prepare_statement(const char *name)
     180              : {
     181           38 :     const char *con = connection ? connection : "NULL";
     182              : 
     183           38 :     if (strcmp(name, "all") != 0)
     184              :     {
     185           37 :         fprintf(base_yyout, "{ ECPGdeallocate(__LINE__, %d, %s, ", compat, con);
     186           37 :         output_escaped_str(name, true);
     187           37 :         fputs(");", base_yyout);
     188              :     }
     189              :     else
     190            1 :         fprintf(base_yyout, "{ ECPGdeallocate_all(__LINE__, %d, %s);", compat, con);
     191              : 
     192           38 :     whenever_action(2);
     193           38 : }
     194              : 
     195              : static void
     196          804 : output_escaped_str(const char *str, bool quoted)
     197              : {
     198          804 :     int         i = 0;
     199          804 :     int         len = strlen(str);
     200              : 
     201          804 :     if (quoted && str[0] == '"' && str[len - 1] == '"') /* do not escape quotes
     202              :                                                          * at beginning and end
     203              :                                                          * if quoted string */
     204              :     {
     205           85 :         i = 1;
     206           85 :         len--;
     207           85 :         fputs("\"", base_yyout);
     208              :     }
     209              : 
     210              :     /* output this char by char as we have to filter " and \n */
     211        30255 :     for (; i < len; i++)
     212              :     {
     213        29451 :         if (str[i] == '"')
     214          100 :             fputs("\\\"", base_yyout);
     215        29351 :         else if (str[i] == '\n')
     216           20 :             fputs("\\\n", base_yyout);
     217        29331 :         else if (str[i] == '\\')
     218              :         {
     219           14 :             int         j = i;
     220              : 
     221              :             /*
     222              :              * check whether this is a continuation line if it is, do not
     223              :              * output anything because newlines are escaped anyway
     224              :              */
     225              : 
     226              :             /* accept blanks after the '\' as some other compilers do too */
     227              :             do
     228              :             {
     229           14 :                 j++;
     230           14 :             } while (str[j] == ' ' || str[j] == '\t');
     231              : 
     232           14 :             if ((str[j] != '\n') && (str[j] != '\r' || str[j + 1] != '\n')) /* not followed by a
     233              :                                                                              * newline */
     234           14 :                 fputs("\\\\", base_yyout);
     235              :         }
     236        29317 :         else if (str[i] == '\r' && str[i + 1] == '\n')
     237              :         {
     238            0 :             fputs("\\\r\n", base_yyout);
     239            0 :             i++;
     240              :         }
     241              :         else
     242        29317 :             fputc(str[i], base_yyout);
     243              :     }
     244              : 
     245          804 :     if (quoted && str[0] == '"' && str[len] == '"')
     246           85 :         fputs("\"", base_yyout);
     247          804 : }
        

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