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Diffstat (limited to 'src/interfaces/ecpg/preproc/ecpg.c')
-rw-r--r--src/interfaces/ecpg/preproc/ecpg.c504
1 files changed, 504 insertions, 0 deletions
diff --git a/src/interfaces/ecpg/preproc/ecpg.c b/src/interfaces/ecpg/preproc/ecpg.c
new file mode 100644
index 0000000..13e0f8c
--- /dev/null
+++ b/src/interfaces/ecpg/preproc/ecpg.c
@@ -0,0 +1,504 @@
+/* src/interfaces/ecpg/preproc/ecpg.c */
+
+/* Main for ecpg, the PostgreSQL embedded SQL precompiler. */
+/* Copyright (c) 1996-2021, PostgreSQL Global Development Group */
+
+#include "postgres_fe.h"
+
+#include <unistd.h>
+
+#include "getopt_long.h"
+
+#include "preproc_extern.h"
+
+int ret_value = 0;
+bool autocommit = false,
+ auto_create_c = false,
+ system_includes = false,
+ force_indicator = true,
+ questionmarks = false,
+ regression_mode = false,
+ auto_prepare = false;
+
+char *output_filename;
+
+enum COMPAT_MODE compat = ECPG_COMPAT_PGSQL;
+
+struct _include_path *include_paths = NULL;
+struct cursor *cur = NULL;
+struct typedefs *types = NULL;
+struct _defines *defines = NULL;
+struct declared_list *g_declared_list = NULL;
+
+static void
+help(const char *progname)
+{
+ printf(_("%s is the PostgreSQL embedded SQL preprocessor for C programs.\n\n"),
+ progname);
+ printf(_("Usage:\n"
+ " %s [OPTION]... FILE...\n\n"),
+ progname);
+ printf(_("Options:\n"));
+ printf(_(" -c automatically generate C code from embedded SQL code;\n"
+ " this affects EXEC SQL TYPE\n"));
+ printf(_(" -C MODE set compatibility mode; MODE can be one of\n"
+ " \"INFORMIX\", \"INFORMIX_SE\", \"ORACLE\"\n"));
+#ifdef YYDEBUG
+ printf(_(" -d generate parser debug output\n"));
+#endif
+ printf(_(" -D SYMBOL define SYMBOL\n"));
+ printf(_(" -h parse a header file, this option includes option \"-c\"\n"));
+ printf(_(" -i parse system include files as well\n"));
+ printf(_(" -I DIRECTORY search DIRECTORY for include files\n"));
+ printf(_(" -o OUTFILE write result to OUTFILE\n"));
+ printf(_(" -r OPTION specify run-time behavior; OPTION can be:\n"
+ " \"no_indicator\", \"prepare\", \"questionmarks\"\n"));
+ printf(_(" --regression run in regression testing mode\n"));
+ printf(_(" -t turn on autocommit of transactions\n"));
+ printf(_(" -V, --version output version information, then exit\n"));
+ printf(_(" -?, --help show this help, then exit\n"));
+ printf(_("\nIf no output file is specified, the name is formed by adding .c to the\n"
+ "input file name, after stripping off .pgc if present.\n"));
+ printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+ printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
+}
+
+static void
+add_include_path(char *path)
+{
+ struct _include_path *ip = include_paths,
+ *new;
+
+ new = mm_alloc(sizeof(struct _include_path));
+ new->path = path;
+ new->next = NULL;
+
+ if (ip == NULL)
+ include_paths = new;
+ else
+ {
+ for (; ip->next != NULL; ip = ip->next);
+ ip->next = new;
+ }
+}
+
+static void
+add_preprocessor_define(char *define)
+{
+ struct _defines *pd = defines;
+ char *ptr,
+ *define_copy = mm_strdup(define);
+
+ defines = mm_alloc(sizeof(struct _defines));
+
+ /* look for = sign */
+ ptr = strchr(define_copy, '=');
+ if (ptr != NULL)
+ {
+ char *tmp;
+
+ /* symbol has a value */
+ for (tmp = ptr - 1; *tmp == ' '; tmp--);
+ tmp[1] = '\0';
+ defines->olddef = define_copy;
+ defines->newdef = ptr + 1;
+ }
+ else
+ {
+ defines->olddef = define_copy;
+ defines->newdef = mm_strdup("1");
+ }
+ defines->pertinent = true;
+ defines->used = NULL;
+ defines->next = pd;
+}
+
+#define ECPG_GETOPT_LONG_REGRESSION 1
+int
+main(int argc, char *const argv[])
+{
+ static struct option ecpg_options[] = {
+ {"regression", no_argument, NULL, ECPG_GETOPT_LONG_REGRESSION},
+ {NULL, 0, NULL, 0}
+ };
+
+ int fnr,
+ c,
+ out_option = 0;
+ bool verbose = false,
+ header_mode = false;
+ struct _include_path *ip;
+ const char *progname;
+ char my_exec_path[MAXPGPATH];
+ char include_path[MAXPGPATH];
+
+ set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("ecpg"));
+
+ progname = get_progname(argv[0]);
+
+ if (find_my_exec(argv[0], my_exec_path) < 0)
+ {
+ fprintf(stderr, _("%s: could not locate my own executable path\n"), argv[0]);
+ return ILLEGAL_OPTION;
+ }
+
+ if (argc > 1)
+ {
+ if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
+ {
+ help(progname);
+ exit(0);
+ }
+ if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
+ {
+ printf("ecpg (PostgreSQL) %s\n", PG_VERSION);
+ exit(0);
+ }
+ }
+
+ output_filename = NULL;
+ while ((c = getopt_long(argc, argv, "vcio:I:tD:dC:r:h", ecpg_options, NULL)) != -1)
+ {
+ switch (c)
+ {
+ case ECPG_GETOPT_LONG_REGRESSION:
+ regression_mode = true;
+ break;
+ case 'o':
+ output_filename = mm_strdup(optarg);
+ if (strcmp(output_filename, "-") == 0)
+ base_yyout = stdout;
+ else
+ base_yyout = fopen(output_filename, PG_BINARY_W);
+
+ if (base_yyout == NULL)
+ {
+ fprintf(stderr, _("%s: could not open file \"%s\": %s\n"),
+ progname, output_filename, strerror(errno));
+ output_filename = NULL;
+ }
+ else
+ out_option = 1;
+ break;
+ case 'I':
+ add_include_path(optarg);
+ break;
+ case 't':
+ autocommit = true;
+ break;
+ case 'v':
+ verbose = true;
+ break;
+ case 'h':
+ header_mode = true;
+ /* this must include "-c" to make sense, so fall through */
+ /* FALLTHROUGH */
+ case 'c':
+ auto_create_c = true;
+ break;
+ case 'i':
+ system_includes = true;
+ break;
+ case 'C':
+ if (pg_strcasecmp(optarg, "INFORMIX") == 0 || pg_strcasecmp(optarg, "INFORMIX_SE") == 0)
+ {
+ char pkginclude_path[MAXPGPATH];
+ char informix_path[MAXPGPATH];
+
+ compat = (pg_strcasecmp(optarg, "INFORMIX") == 0) ? ECPG_COMPAT_INFORMIX : ECPG_COMPAT_INFORMIX_SE;
+ get_pkginclude_path(my_exec_path, pkginclude_path);
+ snprintf(informix_path, MAXPGPATH, "%s/informix/esql", pkginclude_path);
+ add_include_path(informix_path);
+ }
+ else if (pg_strcasecmp(optarg, "ORACLE") == 0)
+ {
+ compat = ECPG_COMPAT_ORACLE;
+ }
+ else
+ {
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"), argv[0]);
+ return ILLEGAL_OPTION;
+ }
+ break;
+ case 'r':
+ if (pg_strcasecmp(optarg, "no_indicator") == 0)
+ force_indicator = false;
+ else if (pg_strcasecmp(optarg, "prepare") == 0)
+ auto_prepare = true;
+ else if (pg_strcasecmp(optarg, "questionmarks") == 0)
+ questionmarks = true;
+ else
+ {
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"), argv[0]);
+ return ILLEGAL_OPTION;
+ }
+ break;
+ case 'D':
+ add_preprocessor_define(optarg);
+ break;
+ case 'd':
+#ifdef YYDEBUG
+ base_yydebug = 1;
+#else
+ fprintf(stderr, _("%s: parser debug support (-d) not available\n"),
+ progname);
+#endif
+ break;
+ default:
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"), argv[0]);
+ return ILLEGAL_OPTION;
+ }
+ }
+
+ add_include_path(".");
+ add_include_path("/usr/local/include");
+ get_include_path(my_exec_path, include_path);
+ add_include_path(include_path);
+ add_include_path("/usr/include");
+
+ if (verbose)
+ {
+ fprintf(stderr,
+ _("%s, the PostgreSQL embedded C preprocessor, version %s\n"),
+ progname, PG_VERSION);
+ fprintf(stderr, _("EXEC SQL INCLUDE ... search starts here:\n"));
+ for (ip = include_paths; ip != NULL; ip = ip->next)
+ fprintf(stderr, " %s\n", ip->path);
+ fprintf(stderr, _("end of search list\n"));
+ return 0;
+ }
+
+ if (optind >= argc) /* no files specified */
+ {
+ fprintf(stderr, _("%s: no input files specified\n"), progname);
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"), argv[0]);
+ return ILLEGAL_OPTION;
+ }
+ else
+ {
+ /* after the options there must not be anything but filenames */
+ for (fnr = optind; fnr < argc; fnr++)
+ {
+ char *ptr2ext;
+
+ /* If argv[fnr] is "-" we have to read from stdin */
+ if (strcmp(argv[fnr], "-") == 0)
+ {
+ input_filename = mm_alloc(strlen("stdin") + 1);
+ strcpy(input_filename, "stdin");
+ base_yyin = stdin;
+ }
+ else
+ {
+ input_filename = mm_alloc(strlen(argv[fnr]) + 5);
+ strcpy(input_filename, argv[fnr]);
+
+ /* take care of relative paths */
+ ptr2ext = last_dir_separator(input_filename);
+ ptr2ext = (ptr2ext ? strrchr(ptr2ext, '.') : strrchr(input_filename, '.'));
+
+ /* no extension? */
+ if (ptr2ext == NULL)
+ {
+ ptr2ext = input_filename + strlen(input_filename);
+
+ /* no extension => add .pgc or .pgh */
+ ptr2ext[0] = '.';
+ ptr2ext[1] = 'p';
+ ptr2ext[2] = 'g';
+ ptr2ext[3] = (header_mode == true) ? 'h' : 'c';
+ ptr2ext[4] = '\0';
+ }
+
+ base_yyin = fopen(input_filename, PG_BINARY_R);
+ }
+
+ if (out_option == 0) /* calculate the output name */
+ {
+ if (strcmp(input_filename, "stdin") == 0)
+ base_yyout = stdout;
+ else
+ {
+ output_filename = mm_alloc(strlen(input_filename) + 3);
+ strcpy(output_filename, input_filename);
+
+ ptr2ext = strrchr(output_filename, '.');
+ /* make extension = .c resp. .h */
+ ptr2ext[1] = (header_mode == true) ? 'h' : 'c';
+ ptr2ext[2] = '\0';
+
+ base_yyout = fopen(output_filename, PG_BINARY_W);
+ if (base_yyout == NULL)
+ {
+ fprintf(stderr, _("%s: could not open file \"%s\": %s\n"),
+ progname, output_filename, strerror(errno));
+ free(output_filename);
+ output_filename = NULL;
+ free(input_filename);
+ continue;
+ }
+ }
+ }
+
+ if (base_yyin == NULL)
+ fprintf(stderr, _("%s: could not open file \"%s\": %s\n"),
+ progname, argv[fnr], strerror(errno));
+ else
+ {
+ struct cursor *ptr;
+ struct _defines *defptr;
+ struct typedefs *typeptr;
+ struct declared_list *list;
+
+ /* remove old cursor definitions if any are still there */
+ for (ptr = cur; ptr != NULL;)
+ {
+ struct cursor *this = ptr;
+ struct arguments *l1,
+ *l2;
+
+ free(ptr->command);
+ free(ptr->connection);
+ free(ptr->name);
+ for (l1 = ptr->argsinsert; l1; l1 = l2)
+ {
+ l2 = l1->next;
+ free(l1);
+ }
+ for (l1 = ptr->argsresult; l1; l1 = l2)
+ {
+ l2 = l1->next;
+ free(l1);
+ }
+ ptr = ptr->next;
+ free(this);
+ }
+ cur = NULL;
+
+ /* remove old declared statements if any are still there */
+ for (list = g_declared_list; list != NULL;)
+ {
+ struct declared_list *this = list;
+
+ list = list->next;
+ free(this);
+ }
+
+ /* remove non-pertinent old defines as well */
+ while (defines && !defines->pertinent)
+ {
+ defptr = defines;
+ defines = defines->next;
+
+ free(defptr->newdef);
+ free(defptr->olddef);
+ free(defptr);
+ }
+
+ for (defptr = defines; defptr != NULL; defptr = defptr->next)
+ {
+ struct _defines *this = defptr->next;
+
+ if (this && !this->pertinent)
+ {
+ defptr->next = this->next;
+
+ free(this->newdef);
+ free(this->olddef);
+ free(this);
+ }
+ }
+
+ /* and old typedefs */
+ for (typeptr = types; typeptr != NULL;)
+ {
+ struct typedefs *this = typeptr;
+
+ free(typeptr->name);
+ ECPGfree_struct_member(typeptr->struct_member_list);
+ free(typeptr->type);
+ typeptr = typeptr->next;
+ free(this);
+ }
+ types = NULL;
+
+ /* initialize whenever structures */
+ memset(&when_error, 0, sizeof(struct when));
+ memset(&when_nf, 0, sizeof(struct when));
+ memset(&when_warn, 0, sizeof(struct when));
+
+ /* and structure member lists */
+ memset(struct_member_list, 0, sizeof(struct_member_list));
+
+ /*
+ * and our variable counter for out of scope cursors'
+ * variables
+ */
+ ecpg_internal_var = 0;
+
+ /* finally the actual connection */
+ connection = NULL;
+
+ /* initialize lex */
+ lex_init();
+
+ /* we need several includes */
+ /* but not if we are in header mode */
+ if (regression_mode)
+ fprintf(base_yyout, "/* Processed by ecpg (regression mode) */\n");
+ else
+ fprintf(base_yyout, "/* Processed by ecpg (%s) */\n", PG_VERSION);
+
+ if (header_mode == false)
+ {
+ fprintf(base_yyout, "/* These include files are added by the preprocessor */\n#include <ecpglib.h>\n#include <ecpgerrno.h>\n#include <sqlca.h>\n");
+
+ /* add some compatibility headers */
+ if (INFORMIX_MODE)
+ fprintf(base_yyout, "/* Needed for informix compatibility */\n#include <ecpg_informix.h>\n");
+
+ fprintf(base_yyout, "/* End of automatic include section */\n");
+ }
+
+ if (regression_mode)
+ fprintf(base_yyout, "#define ECPGdebug(X,Y) ECPGdebug((X)+100,(Y))\n");
+
+ output_line_number();
+
+ /* and parse the source */
+ base_yyparse();
+
+ /*
+ * Check whether all cursors were indeed opened. It does not
+ * really make sense to declare a cursor but not open it.
+ */
+ for (ptr = cur; ptr != NULL; ptr = ptr->next)
+ if (!(ptr->opened))
+ mmerror(PARSE_ERROR, ET_WARNING, "cursor \"%s\" has been declared but not opened", ptr->name);
+
+ if (base_yyin != NULL && base_yyin != stdin)
+ fclose(base_yyin);
+ if (out_option == 0 && base_yyout != stdout)
+ fclose(base_yyout);
+
+ /*
+ * If there was an error, delete the output file.
+ */
+ if (ret_value != 0)
+ {
+ if (strcmp(output_filename, "-") != 0 && unlink(output_filename) != 0)
+ fprintf(stderr, _("could not remove output file \"%s\"\n"), output_filename);
+ }
+ }
+
+ if (output_filename && out_option == 0)
+ {
+ free(output_filename);
+ output_filename = NULL;
+ }
+
+ free(input_filename);
+ }
+ }
+ return ret_value;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 17:17:56 +0000