Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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..6fff9e7
--- /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) 1996-2022, 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;
+}