#include "postgres_fe.h"
#include <unistd.h>
#include "getopt_long.h"
#include "extern.h"

Include dependency graph for ecpg.c:

Macros
#define	ECPG_GETOPT_LONG_REGRESSION 1

Functions
static void	help (const char *progname)

static void	add_include_path (char *path)

static void	add_preprocessor_define (char *define)

int	main (int argc, char *const argv[])

Variables
int	ret_value = 0

bool	autocommit = false

bool	auto_create_c = false

bool	system_includes = false

bool	force_indicator = true

bool	questionmarks = false

bool	regression_mode = false

bool	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

Macro Definition Documentation

#define ECPG_GETOPT_LONG_REGRESSION 1

Definition at line 114 of file ecpg.c.

Referenced by main().

Function Documentation

static void add_include_path ( char * path )

static

Definition at line 65 of file ecpg.c.

References include_paths, mm_alloc(), _include_path::next, NULL, and _include_path::path.

Referenced by main().

 {
     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 )

static

Definition at line 84 of file ecpg.c.

References defines, mm_alloc(), mm_strdup(), _defines::new, _defines::next, NULL, _defines::old, _defines::pertinent, and _defines::used.

Referenced by main().

 {
     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->old = define_copy;
         defines->new = ptr + 1;
     }
     else
     {
         defines->old = define_copy;
         defines->new = mm_strdup("1");
     }
     defines->pertinent = true;
     defines->used = NULL;
     defines->next = pd;
 }

static void help ( const char * progname )

static

Definition at line 33 of file ecpg.c.

References _.

Referenced by main().

 {
     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\"\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 <pgsql-bugs@postgresql.org>.\n"));
 }

int main	(	int	argc,
		char *const	argv[]
	)

Definition at line 116 of file ecpg.c.

References _, add_include_path(), add_preprocessor_define(), cursor::argsinsert, cursor::argsresult, auto_create_c, auto_prepare, autocommit, base_yyin, base_yyout, base_yyparse(), cursor::command, compat, cursor::connection, defines, ECPG_COMPAT_INFORMIX, ECPG_COMPAT_INFORMIX_SE, ECPG_GETOPT_LONG_REGRESSION, ecpg_internal_var, ECPGfree_struct_member(), ET_WARNING, find_my_exec(), force_indicator, free, get_include_path(), get_pkginclude_path(), get_progname(), getopt_long(), help(), ILLEGAL_OPTION, INFORMIX_MODE, input_filename, last_dir_separator(), lex_init(), MAXPGPATH, mm_alloc(), mm_strdup(), mmerror(), my_exec_path, cursor::name, typedefs::name, _defines::new, _include_path::next, cursor::next, typedefs::next, _defines::next, arguments::next, next, no_argument, NULL, _defines::old, cursor::opened, optarg, optind, output_filename, output_line_number(), PARSE_ERROR, _include_path::path, _defines::pertinent, PG_BINARY_R, PG_BINARY_W, PG_TEXTDOMAIN, progname, questionmarks, regression_mode, ret_value, set_pglocale_pgservice(), snprintf(), strerror(), struct_member_list, typedefs::struct_member_list, system_includes, typedefs::type, unlink(), verbose, and when_warn.

 {
     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 %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 do not place a "break;" here */
             case 'c':
                 auto_create_c = true;
                 break;
             case 'i':
                 system_includes = true;
                 break;
             case 'C':
                 if (strncmp(optarg, "INFORMIX", strlen("INFORMIX")) == 0)
                 {
                     char        pkginclude_path[MAXPGPATH];
                     char        informix_path[MAXPGPATH];
 
                     compat = (strcmp(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
                 {
                     fprintf(stderr, _("Try \"%s --help\" for more information.\n"), argv[0]);
                     return ILLEGAL_OPTION;
                 }
                 break;
             case 'r':
                 if (strcmp(optarg, "no_indicator") == 0)
                     force_indicator = false;
                 else if (strcmp(optarg, "prepare") == 0)
                     auto_prepare = true;
                 else if (strcmp(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);
                         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;
 
                 /* 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 non-pertinent old defines as well */
                 while (defines && !defines->pertinent)
                 {
                     defptr = defines;
                     defines = defines->next;
 
                     free(defptr->new);
                     free(defptr->old);
                     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->new);
                         free(this->old);
                         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);
 
             free(input_filename);
         }
     }
     return ret_value;
 }