diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.global.in | 4 | ||||
| -rw-r--r-- | src/backend/commands/dbcommands.c | 30 | ||||
| -rw-r--r-- | src/bin/initdb/initdb.c | 268 | ||||
| -rw-r--r-- | src/include/port.h | 5 | ||||
| -rw-r--r-- | src/port/Makefile | 33 | ||||
| -rw-r--r-- | src/port/chklocale.c | 246 |
6 files changed, 347 insertions, 239 deletions
diff --git a/src/Makefile.global.in b/src/Makefile.global.in index 3f81b9e786..cbe2634091 100644 --- a/src/Makefile.global.in +++ b/src/Makefile.global.in @@ -1,5 +1,5 @@ # -*-makefile-*- -# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.238 2007/08/20 08:53:12 petere Exp $ +# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.239 2007/09/28 22:25:49 tgl Exp $ #------------------------------------------------------------------------------ # All PostgreSQL makefiles include this file and use the variables it sets, @@ -423,7 +423,7 @@ endif # # substitute implementations of C library routines (see src/port/) -LIBOBJS = @LIBOBJS@ copydir.o dirmod.o exec.o noblock.o path.o pipe.o pgsleep.o pgstrcasecmp.o qsort.o qsort_arg.o sprompt.o thread.o +LIBOBJS = @LIBOBJS@ LIBS := -lpgport $(LIBS) # add location of libpgport.a to LDFLAGS diff --git a/src/backend/commands/dbcommands.c b/src/backend/commands/dbcommands.c index f627480362..094f51b5cc 100644 --- a/src/backend/commands/dbcommands.c +++ b/src/backend/commands/dbcommands.c @@ -13,13 +13,14 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.198 2007/09/03 18:46:29 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.199 2007/09/28 22:25:49 tgl Exp $ * *------------------------------------------------------------------------- */ #include "postgres.h" #include <fcntl.h> +#include <locale.h> #include <unistd.h> #include <sys/stat.h> @@ -96,6 +97,7 @@ createdb(const CreatedbStmt *stmt) const char *dbtemplate = NULL; int encoding = -1; int dbconnlimit = -1; + int ctype_encoding; /* Extract options from the statement node tree */ foreach(option, stmt->options) @@ -254,6 +256,32 @@ createdb(const CreatedbStmt *stmt) (errcode(ERRCODE_WRONG_OBJECT_TYPE), errmsg("invalid server encoding %d", encoding))); + /* + * Check whether encoding matches server locale settings. We allow + * mismatch in two cases: + * + * 1. ctype_encoding = SQL_ASCII, which means either that the locale + * is C/POSIX which works with any encoding, or that we couldn't determine + * the locale's encoding and have to trust the user to get it right. + * + * 2. selected encoding is SQL_ASCII, but only if you're a superuser. + * This is risky but we have historically allowed it --- notably, the + * regression tests require it. + * + * Note: if you change this policy, fix initdb to match. + */ + ctype_encoding = pg_get_encoding_from_locale(NULL); + + if (!(ctype_encoding == encoding || + ctype_encoding == PG_SQL_ASCII || + (encoding == PG_SQL_ASCII && superuser()))) + ereport(ERROR, + (errmsg("encoding %s does not match server's locale %s", + pg_encoding_to_char(encoding), + setlocale(LC_CTYPE, NULL)), + errdetail("The server's LC_CTYPE setting requires encoding %s.", + pg_encoding_to_char(ctype_encoding)))); + /* Resolve default tablespace for new database */ if (dtablespacename && dtablespacename->arg) { diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c index 52f50f195b..1216bbd67c 100644 --- a/src/bin/initdb/initdb.c +++ b/src/bin/initdb/initdb.c @@ -42,7 +42,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * Portions taken from FreeBSD. * - * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.142 2007/09/28 15:25:44 tgl Exp $ + * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.143 2007/09/28 22:25:49 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -54,9 +54,6 @@ #include <unistd.h> #include <locale.h> #include <signal.h> -#ifdef HAVE_LANGINFO_H -#include <langinfo.h> -#endif #include <time.h> #include "libpq/pqsignal.h" @@ -720,197 +717,6 @@ get_encoding_id(char *encoding_name) exit(1); } -#if defined(HAVE_LANGINFO_H) && defined(CODESET) -/* - * Checks whether the encoding selected for PostgreSQL and the - * encoding used by the system locale match. - */ - -struct encoding_match -{ - enum pg_enc pg_enc_code; - const char *system_enc_name; -}; - -static const struct encoding_match encoding_match_list[] = { - {PG_EUC_JP, "EUC-JP"}, - {PG_EUC_JP, "eucJP"}, - {PG_EUC_JP, "IBM-eucJP"}, - {PG_EUC_JP, "sdeckanji"}, - - {PG_EUC_CN, "EUC-CN"}, - {PG_EUC_CN, "eucCN"}, - {PG_EUC_CN, "IBM-eucCN"}, - {PG_EUC_CN, "GB2312"}, - {PG_EUC_CN, "dechanzi"}, - - {PG_EUC_KR, "EUC-KR"}, - {PG_EUC_KR, "eucKR"}, - {PG_EUC_KR, "IBM-eucKR"}, - {PG_EUC_KR, "deckorean"}, - {PG_EUC_KR, "5601"}, - - {PG_EUC_TW, "EUC-TW"}, - {PG_EUC_TW, "eucTW"}, - {PG_EUC_TW, "IBM-eucTW"}, - {PG_EUC_TW, "cns11643"}, - -#ifdef NOT_VERIFIED - {PG_JOHAB, "???"}, -#endif - - {PG_UTF8, "UTF-8"}, - {PG_UTF8, "utf8"}, - - {PG_LATIN1, "ISO-8859-1"}, - {PG_LATIN1, "ISO8859-1"}, - {PG_LATIN1, "iso88591"}, - - {PG_LATIN2, "ISO-8859-2"}, - {PG_LATIN2, "ISO8859-2"}, - {PG_LATIN2, "iso88592"}, - - {PG_LATIN3, "ISO-8859-3"}, - {PG_LATIN3, "ISO8859-3"}, - {PG_LATIN3, "iso88593"}, - - {PG_LATIN4, "ISO-8859-4"}, - {PG_LATIN4, "ISO8859-4"}, - {PG_LATIN4, "iso88594"}, - - {PG_LATIN5, "ISO-8859-9"}, - {PG_LATIN5, "ISO8859-9"}, - {PG_LATIN5, "iso88599"}, - - {PG_LATIN6, "ISO-8859-10"}, - {PG_LATIN6, "ISO8859-10"}, - {PG_LATIN6, "iso885910"}, - - {PG_LATIN7, "ISO-8859-13"}, - {PG_LATIN7, "ISO8859-13"}, - {PG_LATIN7, "iso885913"}, - - {PG_LATIN8, "ISO-8859-14"}, - {PG_LATIN8, "ISO8859-14"}, - {PG_LATIN8, "iso885914"}, - - {PG_LATIN9, "ISO-8859-15"}, - {PG_LATIN9, "ISO8859-15"}, - {PG_LATIN9, "iso885915"}, - - {PG_LATIN10, "ISO-8859-16"}, - {PG_LATIN10, "ISO8859-16"}, - {PG_LATIN10, "iso885916"}, - - {PG_WIN1252, "CP1252"}, - {PG_WIN1253, "CP1253"}, - {PG_WIN1254, "CP1254"}, - {PG_WIN1255, "CP1255"}, - {PG_WIN1256, "CP1256"}, - {PG_WIN1257, "CP1257"}, - {PG_WIN1258, "CP1258"}, -#ifdef NOT_VERIFIED - {PG_WIN874, "???"}, -#endif - {PG_KOI8R, "KOI8-R"}, - {PG_WIN1251, "CP1251"}, - {PG_WIN866, "CP866"}, - - {PG_ISO_8859_5, "ISO-8859-5"}, - {PG_ISO_8859_5, "ISO8859-5"}, - {PG_ISO_8859_5, "iso88595"}, - - {PG_ISO_8859_6, "ISO-8859-6"}, - {PG_ISO_8859_6, "ISO8859-6"}, - {PG_ISO_8859_6, "iso88596"}, - - {PG_ISO_8859_7, "ISO-8859-7"}, - {PG_ISO_8859_7, "ISO8859-7"}, - {PG_ISO_8859_7, "iso88597"}, - - {PG_ISO_8859_8, "ISO-8859-8"}, - {PG_ISO_8859_8, "ISO8859-8"}, - {PG_ISO_8859_8, "iso88598"}, - - {PG_SQL_ASCII, NULL} /* end marker */ -}; - -static char * -get_encoding_from_locale(const char *ctype) -{ - char *save; - char *sys; - - save = setlocale(LC_CTYPE, NULL); - if (!save) - return NULL; - save = xstrdup(save); - - setlocale(LC_CTYPE, ctype); - sys = nl_langinfo(CODESET); - sys = xstrdup(sys); - - setlocale(LC_CTYPE, save); - free(save); - - return sys; -} - -static void -check_encodings_match(int pg_enc, const char *ctype) -{ - char *sys; - int i; - - sys = get_encoding_from_locale(ctype); - - for (i = 0; encoding_match_list[i].system_enc_name; i++) - { - if (pg_enc == encoding_match_list[i].pg_enc_code - && pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0) - { - free(sys); - return; - } - } - - fprintf(stderr, - _("%s: warning: encoding mismatch\n"), progname); - fprintf(stderr, - _("The encoding you selected (%s) and the encoding that the selected\n" - "locale uses (%s) are not known to match. This might lead to\n" - "misbehavior in various character string processing functions. To fix\n" - "this situation, rerun %s and either do not specify an encoding\n" - "explicitly, or choose a matching combination.\n"), - pg_encoding_to_char(pg_enc), sys, progname); - - free(sys); - return; -} - -static int -find_matching_encoding(const char *ctype) -{ - char *sys; - int i; - - sys = get_encoding_from_locale(ctype); - - for (i = 0; encoding_match_list[i].system_enc_name; i++) - { - if (pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0) - { - free(sys); - return encoding_match_list[i].pg_enc_code; - } - } - - free(sys); - return -1; -} -#endif /* HAVE_LANGINFO_H && CODESET */ - - /* * Support for determining the best default text search configuration. * We key this off LC_CTYPE, after stripping its encoding indicator if any. @@ -2909,10 +2715,6 @@ main(int argc, char *argv[]) if (strlen(username) == 0) username = effective_user; - - if (strlen(encoding)) - encodingid = get_encoding_id(encoding); - set_input(&bki_file, "postgres.bki"); set_input(&desc_file, "postgres.description"); set_input(&shdesc_file, "postgres.shdescription"); @@ -2988,32 +2790,58 @@ main(int argc, char *argv[]) lc_time); } -#if defined(HAVE_LANGINFO_H) && defined(CODESET) - if (strcmp(lc_ctype, "C") != 0 && strcmp(lc_ctype, "POSIX") != 0) + if (strlen(encoding) == 0) { - if (strlen(encoding) == 0) - { - int tmp; + int ctype_enc; - tmp = find_matching_encoding(lc_ctype); - if (tmp == -1) - { - fprintf(stderr, _("%s: could not find suitable encoding for locale \"%s\"\n"), progname, lc_ctype); - fprintf(stderr, _("Rerun %s with the -E option.\n"), progname); - fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname); - exit(1); - } - else - { - encodingid = encodingid_to_string(tmp); - printf(_("The default database encoding has accordingly been set to %s.\n"), - pg_encoding_to_char(tmp)); - } + ctype_enc = pg_get_encoding_from_locale(lc_ctype); + + if (ctype_enc == PG_SQL_ASCII && + !(pg_strcasecmp(lc_ctype, "C") == 0 || + pg_strcasecmp(lc_ctype, "POSIX") == 0)) + { + fprintf(stderr, _("%s: could not find suitable encoding for locale \"%s\"\n"), + progname, lc_ctype); + fprintf(stderr, _("Rerun %s with the -E option.\n"), progname); + fprintf(stderr, _("Try \"%s --help\" for more information.\n"), + progname); + exit(1); } else - check_encodings_match(atoi(encodingid), lc_ctype); + { + encodingid = encodingid_to_string(ctype_enc); + printf(_("The default database encoding has accordingly been set to %s.\n"), + pg_encoding_to_char(ctype_enc)); + } + } + else + { + int user_enc; + int ctype_enc; + + encodingid = get_encoding_id(encoding); + user_enc = atoi(encodingid); + + ctype_enc = pg_get_encoding_from_locale(lc_ctype); + + /* We allow selection of SQL_ASCII --- see notes in createdb() */ + if (!(ctype_enc == user_enc || + ctype_enc == PG_SQL_ASCII || + user_enc == PG_SQL_ASCII)) + { + fprintf(stderr, _("%s: encoding mismatch\n"), progname); + fprintf(stderr, + _("The encoding you selected (%s) and the encoding that the\n" + "selected locale uses (%s) do not match. This would lead to\n" + "misbehavior in various character string processing functions.\n" + "Rerun %s and either do not specify an encoding explicitly,\n" + "or choose a matching combination.\n"), + pg_encoding_to_char(user_enc), + pg_encoding_to_char(ctype_enc), + progname); + exit(1); + } } -#endif /* HAVE_LANGINFO_H && CODESET */ if (strlen(default_text_search_config) == 0) { diff --git a/src/include/port.h b/src/include/port.h index 77709d45b7..2e46f7cdbc 100644 --- a/src/include/port.h +++ b/src/include/port.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/port.h,v 1.112 2007/07/12 23:28:49 tgl Exp $ + * $PostgreSQL: pgsql/src/include/port.h,v 1.113 2007/09/28 22:25:49 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -391,4 +391,7 @@ typedef int (*qsort_arg_comparator) (const void *a, const void *b, void *arg); extern void qsort_arg(void *base, size_t nel, size_t elsize, qsort_arg_comparator cmp, void *arg); +/* port/chklocale.c */ +extern int pg_get_encoding_from_locale(const char *ctype); + #endif /* PG_PORT_H */ diff --git a/src/port/Makefile b/src/port/Makefile index 5ab4dd0a78..b1131599e3 100644 --- a/src/port/Makefile +++ b/src/port/Makefile @@ -14,8 +14,12 @@ # libpgport_srv.a - contains object files without FRONTEND defined, # for use only by the backend binaries # +# LIBOBJS is set by configure (via Makefile.global) to be the list of +# object files that are conditionally needed depending on platform. +# OBJS adds additional object files that are always compiled. +# # IDENTIFICATION -# $PostgreSQL: pgsql/src/port/Makefile,v 1.34 2007/02/09 15:56:00 petere Exp $ +# $PostgreSQL: pgsql/src/port/Makefile,v 1.35 2007/09/28 22:25:49 tgl Exp $ # #------------------------------------------------------------------------- @@ -26,8 +30,10 @@ include $(top_builddir)/src/Makefile.global override CPPFLAGS := -I$(top_builddir)/src/port -DFRONTEND $(CPPFLAGS) LIBS += $(PTHREAD_LIBS) -# Replace all object files so they use FRONTEND define -LIBOBJS_SRV = $(LIBOBJS:%.o=%_srv.o) +OBJS = $(LIBOBJS) chklocale.o copydir.o dirmod.o exec.o noblock.o path.o pipe.o pgsleep.o pgstrcasecmp.o qsort.o qsort_arg.o sprompt.o thread.o + +# foo_srv.o and foo.o are both built from foo.c, but only foo.o has -DFRONTEND +OBJS_SRV = $(OBJS:%.o=%_srv.o) all: libpgport.a libpgport_srv.a @@ -41,32 +47,29 @@ installdirs: uninstall: rm -f '$(DESTDIR)$(libdir)/libpgport.a' -libpgport.a: $(LIBOBJS) +libpgport.a: $(OBJS) $(AR) $(AROPT) $@ $^ +# thread.o needs PTHREAD_CFLAGS (but thread_srv.o does not) thread.o: thread.c $(CC) $(CFLAGS) $(CPPFLAGS) $(PTHREAD_CFLAGS) -c $< -path.o: path.c pg_config_paths.h - -path_srv.o: path.c pg_config_paths.h - # # Server versions of object files # -libpgport_srv.a: $(LIBOBJS_SRV) +libpgport_srv.a: $(OBJS_SRV) $(AR) $(AROPT) $@ $^ %_srv.o: %.c $(CC) $(CFLAGS) $(subst -DFRONTEND,, $(CPPFLAGS)) -c $< -o $@ -# No thread flags for server version -thread_srv.o: thread.c - $(CC) $(CFLAGS) $(subst -DFRONTEND,, $(CPPFLAGS)) -c $< -o $@ - # Dependency is to ensure that path changes propagate -# + +path.o: path.c pg_config_paths.h + +path_srv.o: path.c pg_config_paths.h + # We create a separate file rather than put these in pg_config.h # because many of these values come from makefiles and are not # available to configure. @@ -84,4 +87,4 @@ pg_config_paths.h: $(top_builddir)/src/Makefile.global echo "#define MANDIR \"$(mandir)\"" >>$@ clean distclean maintainer-clean: - rm -f libpgport.a libpgport_srv.a $(LIBOBJS) $(LIBOBJS_SRV) pg_config_paths.h + rm -f libpgport.a libpgport_srv.a $(OBJS) $(OBJS_SRV) pg_config_paths.h diff --git a/src/port/chklocale.c b/src/port/chklocale.c new file mode 100644 index 0000000000..399438fe77 --- /dev/null +++ b/src/port/chklocale.c @@ -0,0 +1,246 @@ +/*------------------------------------------------------------------------- + * + * chklocale.c + * Functions for handling locale-related info + * + * + * Copyright (c) 1996-2007, PostgreSQL Global Development Group + * + * + * IDENTIFICATION + * $PostgreSQL: pgsql/src/port/chklocale.c,v 1.1 2007/09/28 22:25:49 tgl Exp $ + * + *------------------------------------------------------------------------- + */ + +#ifndef FRONTEND +#include "postgres.h" +#else +#include "postgres_fe.h" +#endif + +#include <locale.h> +#ifdef HAVE_LANGINFO_H +#include <langinfo.h> +#endif + +#include "mb/pg_wchar.h" + + +#if defined(HAVE_LANGINFO_H) && defined(CODESET) + +/* + * This table needs to recognize all the CODESET spellings for supported + * backend encodings. We don't need to handle frontend-only encodings. + * Note that we search the table with pg_strcasecmp(), so variant + * capitalizations don't need their own entries. + */ +struct encoding_match +{ + enum pg_enc pg_enc_code; + const char *system_enc_name; +}; + +static const struct encoding_match encoding_match_list[] = { + {PG_EUC_JP, "EUC-JP"}, + {PG_EUC_JP, "eucJP"}, + {PG_EUC_JP, "IBM-eucJP"}, + {PG_EUC_JP, "sdeckanji"}, + + {PG_EUC_CN, "EUC-CN"}, + {PG_EUC_CN, "eucCN"}, + {PG_EUC_CN, "IBM-eucCN"}, + {PG_EUC_CN, "GB2312"}, + {PG_EUC_CN, "dechanzi"}, + + {PG_EUC_KR, "EUC-KR"}, + {PG_EUC_KR, "eucKR"}, + {PG_EUC_KR, "IBM-eucKR"}, + {PG_EUC_KR, "deckorean"}, + {PG_EUC_KR, "5601"}, + + {PG_EUC_TW, "EUC-TW"}, + {PG_EUC_TW, "eucTW"}, + {PG_EUC_TW, "IBM-eucTW"}, + {PG_EUC_TW, "cns11643"}, + + {PG_UTF8, "UTF-8"}, + {PG_UTF8, "utf8"}, + + {PG_LATIN1, "ISO-8859-1"}, + {PG_LATIN1, "ISO8859-1"}, + {PG_LATIN1, "iso88591"}, + + {PG_LATIN2, "ISO-8859-2"}, + {PG_LATIN2, "ISO8859-2"}, + {PG_LATIN2, "iso88592"}, + + {PG_LATIN3, "ISO-8859-3"}, + {PG_LATIN3, "ISO8859-3"}, + {PG_LATIN3, "iso88593"}, + + {PG_LATIN4, "ISO-8859-4"}, + {PG_LATIN4, "ISO8859-4"}, + {PG_LATIN4, "iso88594"}, + + {PG_LATIN5, "ISO-8859-9"}, + {PG_LATIN5, "ISO8859-9"}, + {PG_LATIN5, "iso88599"}, + + {PG_LATIN6, "ISO-8859-10"}, + {PG_LATIN6, "ISO8859-10"}, + {PG_LATIN6, "iso885910"}, + + {PG_LATIN7, "ISO-8859-13"}, + {PG_LATIN7, "ISO8859-13"}, + {PG_LATIN7, "iso885913"}, + + {PG_LATIN8, "ISO-8859-14"}, + {PG_LATIN8, "ISO8859-14"}, + {PG_LATIN8, "iso885914"}, + + {PG_LATIN9, "ISO-8859-15"}, + {PG_LATIN9, "ISO8859-15"}, + {PG_LATIN9, "iso885915"}, + + {PG_LATIN10, "ISO-8859-16"}, + {PG_LATIN10, "ISO8859-16"}, + {PG_LATIN10, "iso885916"}, + + {PG_KOI8R, "KOI8-R"}, + + {PG_WIN1252, "CP1252"}, + {PG_WIN1253, "CP1253"}, + {PG_WIN1254, "CP1254"}, + {PG_WIN1255, "CP1255"}, + {PG_WIN1256, "CP1256"}, + {PG_WIN1257, "CP1257"}, + {PG_WIN1258, "CP1258"}, +#ifdef NOT_VERIFIED + {PG_WIN874, "???"}, +#endif + {PG_WIN1251, "CP1251"}, + {PG_WIN866, "CP866"}, + + {PG_ISO_8859_5, "ISO-8859-5"}, + {PG_ISO_8859_5, "ISO8859-5"}, + {PG_ISO_8859_5, "iso88595"}, + + {PG_ISO_8859_6, "ISO-8859-6"}, + {PG_ISO_8859_6, "ISO8859-6"}, + {PG_ISO_8859_6, "iso88596"}, + + {PG_ISO_8859_7, "ISO-8859-7"}, + {PG_ISO_8859_7, "ISO8859-7"}, + {PG_ISO_8859_7, "iso88597"}, + + {PG_ISO_8859_8, "ISO-8859-8"}, + {PG_ISO_8859_8, "ISO8859-8"}, + {PG_ISO_8859_8, "iso88598"}, + + {PG_SQL_ASCII, NULL} /* end marker */ +}; + + +/* + * Given a setting for LC_CTYPE, return the Postgres ID of the associated + * encoding, if we can determine it. + * + * Pass in NULL to get the encoding for the current locale setting. + * + * If the result is PG_SQL_ASCII, callers should treat it as being compatible + * with any desired encoding. We return this if the locale is C/POSIX or we + * can't determine the encoding. + */ +int +pg_get_encoding_from_locale(const char *ctype) +{ + char *sys; + int i; + + if (ctype) + { + char *save; + + save = setlocale(LC_CTYPE, NULL); + if (!save) + return PG_SQL_ASCII; /* setlocale() broken? */ + /* must copy result, or it might change after setlocale */ + save = strdup(save); + if (!save) + return PG_SQL_ASCII; /* out of memory; unlikely */ + + if (!setlocale(LC_CTYPE, ctype)) + { + free(save); + return PG_SQL_ASCII; /* bogus ctype passed in? */ + } + + sys = nl_langinfo(CODESET); + if (sys) + sys = strdup(sys); + + setlocale(LC_CTYPE, save); + free(save); + } + else + { + /* much easier... */ + ctype = setlocale(LC_CTYPE, NULL); + if (!ctype) + return PG_SQL_ASCII; /* setlocale() broken? */ + sys = nl_langinfo(CODESET); + if (sys) + sys = strdup(sys); + } + + if (!sys) + return PG_SQL_ASCII; /* out of memory; unlikely */ + + if (pg_strcasecmp(ctype, "C") == 0 || pg_strcasecmp(ctype, "POSIX") == 0) + { + free(sys); + return PG_SQL_ASCII; + } + + for (i = 0; encoding_match_list[i].system_enc_name; i++) + { + if (pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0) + { + free(sys); + return encoding_match_list[i].pg_enc_code; + } + } + + /* + * We print a warning if we got a CODESET string but couldn't recognize + * it. This means we need another entry in the table. + */ +#ifdef FRONTEND + fprintf(stderr, _("could not determine encoding for locale \"%s\": codeset is \"%s\""), + ctype, sys); + /* keep newline separate so there's only one translatable string */ + fputc('\n', stderr); +#else + ereport(WARNING, + (errmsg("could not determine encoding for locale \"%s\": codeset is \"%s\"", + ctype, sys), + errdetail("Please report this to <pgsql-bugs@postgresql.org>."))); +#endif + + free(sys); + return PG_SQL_ASCII; +} + +#else /* !(HAVE_LANGINFO_H && CODESET) */ + +/* + * stub if no platform support + */ +int +pg_get_encoding_from_locale(const char *ctype) +{ + return PG_SQL_ASCII; +} + +#endif /* HAVE_LANGINFO_H && CODESET */ |