diff options
Diffstat (limited to 'src/bin/pg_config/pg_config.c')
| -rw-r--r-- | src/bin/pg_config/pg_config.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/bin/pg_config/pg_config.c b/src/bin/pg_config/pg_config.c new file mode 100644 index 0000000..62b97af --- /dev/null +++ b/src/bin/pg_config/pg_config.c @@ -0,0 +1,189 @@ +/*------------------------------------------------------------------------- + * + * pg_config.c + * + * This program reports various pieces of information about the + * installed version of PostgreSQL. Packages that interface to + * PostgreSQL can use it to configure their build. + * + * This is a C implementation of the previous shell script written by + * Peter Eisentraut <peter_e@gmx.net>, with adjustments made to + * accommodate the possibility that the installation has been relocated from + * the place originally configured. + * + * author of C translation: Andrew Dunstan mailto:andrew@dunslane.net + * + * This code is released under the terms of the PostgreSQL License. + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * + * src/bin/pg_config/pg_config.c + * + *------------------------------------------------------------------------- + */ + +#include "postgres_fe.h" + +#include "common/config_info.h" +#include "port.h" + +static const char *progname; + +/* + * Table of known information items + * + * Be careful to keep this in sync with the help() display. + */ +typedef struct +{ + const char *switchname; + const char *configname; +} InfoItem; + +static const InfoItem info_items[] = { + {"--bindir", "BINDIR"}, + {"--docdir", "DOCDIR"}, + {"--htmldir", "HTMLDIR"}, + {"--includedir", "INCLUDEDIR"}, + {"--pkgincludedir", "PKGINCLUDEDIR"}, + {"--includedir-server", "INCLUDEDIR-SERVER"}, + {"--libdir", "LIBDIR"}, + {"--pkglibdir", "PKGLIBDIR"}, + {"--localedir", "LOCALEDIR"}, + {"--mandir", "MANDIR"}, + {"--sharedir", "SHAREDIR"}, + {"--sysconfdir", "SYSCONFDIR"}, + {"--pgxs", "PGXS"}, + {"--configure", "CONFIGURE"}, + {"--cc", "CC"}, + {"--cppflags", "CPPFLAGS"}, + {"--cflags", "CFLAGS"}, + {"--cflags_sl", "CFLAGS_SL"}, + {"--ldflags", "LDFLAGS"}, + {"--ldflags_ex", "LDFLAGS_EX"}, + {"--ldflags_sl", "LDFLAGS_SL"}, + {"--libs", "LIBS"}, + {"--version", "VERSION"}, + {NULL, NULL} +}; + + +static void +help(void) +{ + printf(_("\n%s provides information about the installed version of PostgreSQL.\n\n"), progname); + printf(_("Usage:\n")); + printf(_(" %s [OPTION]...\n\n"), progname); + printf(_("Options:\n")); + printf(_(" --bindir show location of user executables\n")); + printf(_(" --docdir show location of documentation files\n")); + printf(_(" --htmldir show location of HTML documentation files\n")); + printf(_(" --includedir show location of C header files of the client\n" + " interfaces\n")); + printf(_(" --pkgincludedir show location of other C header files\n")); + printf(_(" --includedir-server show location of C header files for the server\n")); + printf(_(" --libdir show location of object code libraries\n")); + printf(_(" --pkglibdir show location of dynamically loadable modules\n")); + printf(_(" --localedir show location of locale support files\n")); + printf(_(" --mandir show location of manual pages\n")); + printf(_(" --sharedir show location of architecture-independent support files\n")); + printf(_(" --sysconfdir show location of system-wide configuration files\n")); + printf(_(" --pgxs show location of extension makefile\n")); + printf(_(" --configure show options given to \"configure\" script when\n" + " PostgreSQL was built\n")); + printf(_(" --cc show CC value used when PostgreSQL was built\n")); + printf(_(" --cppflags show CPPFLAGS value used when PostgreSQL was built\n")); + printf(_(" --cflags show CFLAGS value used when PostgreSQL was built\n")); + printf(_(" --cflags_sl show CFLAGS_SL value used when PostgreSQL was built\n")); + printf(_(" --ldflags show LDFLAGS value used when PostgreSQL was built\n")); + printf(_(" --ldflags_ex show LDFLAGS_EX value used when PostgreSQL was built\n")); + printf(_(" --ldflags_sl show LDFLAGS_SL value used when PostgreSQL was built\n")); + printf(_(" --libs show LIBS value used when PostgreSQL was built\n")); + printf(_(" --version show the PostgreSQL version\n")); + printf(_(" -?, --help show this help, then exit\n")); + printf(_("\nWith no arguments, all known items are shown.\n\n")); + printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT); + printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL); +} + +static void +advice(void) +{ + fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname); +} + +static void +show_item(const char *configname, + ConfigData *configdata, + size_t configdata_len) +{ + int i; + + for (i = 0; i < configdata_len; i++) + { + if (strcmp(configname, configdata[i].name) == 0) + printf("%s\n", configdata[i].setting); + } +} + +int +main(int argc, char **argv) +{ + ConfigData *configdata; + size_t configdata_len; + char my_exec_path[MAXPGPATH]; + int i; + int j; + + set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_config")); + + progname = get_progname(argv[0]); + + /* check for --help */ + for (i = 1; i < argc; i++) + { + if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-?") == 0) + { + help(); + exit(0); + } + } + + if (find_my_exec(argv[0], my_exec_path) < 0) + { + fprintf(stderr, _("%s: could not find own program executable\n"), progname); + exit(1); + } + + configdata = get_configdata(my_exec_path, &configdata_len); + /* no arguments -> print everything */ + if (argc < 2) + { + for (i = 0; i < configdata_len; i++) + printf("%s = %s\n", configdata[i].name, configdata[i].setting); + exit(0); + } + + /* otherwise print requested items */ + for (i = 1; i < argc; i++) + { + for (j = 0; info_items[j].switchname != NULL; j++) + { + if (strcmp(argv[i], info_items[j].switchname) == 0) + { + show_item(info_items[j].configname, + configdata, configdata_len); + break; + } + } + if (info_items[j].switchname == NULL) + { + fprintf(stderr, _("%s: invalid argument: %s\n"), + progname, argv[i]); + advice(); + exit(1); + } + } + + return 0; +} |