X-Git-Url: https://git.deb.at/w?a=blobdiff_plain;f=intl%2Flocalcharset.c;h=a3e52ef37b89c142bb8d1636f37f28cf2b935070;hb=69a912c0db0ac135fff332db4f0b05ad9ed2eec6;hp=cbcdaceb69aa55959041f2d8e5f41f020d9c4394;hpb=ee5170ade20748797fdde09e370fbb07e585fc9a;p=pkg%2Fabook.git diff --git a/intl/localcharset.c b/intl/localcharset.c index cbcdace..a3e52ef 100644 --- a/intl/localcharset.c +++ b/intl/localcharset.c @@ -1,6 +1,6 @@ /* Determine a canonical name for the current locale's character encoding. - Copyright (C) 2000-2006, 2008-2010 Free Software Foundation, Inc. + Copyright (C) 2000-2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published @@ -14,51 +14,51 @@ You should have received a copy of the GNU Library General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Written by Bruno Haible . */ -#include +#ifdef HAVE_CONFIG_H +# include +#endif /* Specification. */ #include "localcharset.h" -#include -#include -#include -#include -#include +#if HAVE_STDDEF_H +# include +#endif -#if defined __APPLE__ && defined __MACH__ && HAVE_LANGINFO_CODESET -# define DARWIN7 /* Darwin 7 or newer, i.e. MacOS X 10.3 or newer */ +#include +#if HAVE_STRING_H +# include +#else +# include +#endif +#if HAVE_STDLIB_H +# include #endif #if defined _WIN32 || defined __WIN32__ -# define WIN32_NATIVE +# undef WIN32 /* avoid warning on mingw32 */ +# define WIN32 #endif #if defined __EMX__ /* Assume EMX program runs on OS/2, even if compiled under DOS. */ -# ifndef OS2 -# define OS2 -# endif +# define OS2 #endif -#if !defined WIN32_NATIVE -# include +#if !defined WIN32 # if HAVE_LANGINFO_CODESET # include # else -# if 0 /* see comment below */ +# if HAVE_SETLOCALE # include # endif # endif -# ifdef __CYGWIN__ -# define WIN32_LEAN_AND_MEAN -# include -# endif -#elif defined WIN32_NATIVE +#elif defined WIN32 # define WIN32_LEAN_AND_MEAN # include #endif @@ -73,16 +73,6 @@ # define relocate(pathname) (pathname) #endif -/* Get LIBDIR. */ -#ifndef LIBDIR -# include "configmake.h" -#endif - -/* Define O_NOFOLLOW to 0 on platforms where it does not exist. */ -#ifndef O_NOFOLLOW -# define O_NOFOLLOW 0 -#endif - #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ /* Win32, Cygwin, OS/2, DOS */ # define ISSLASH(C) ((C) == '/' || (C) == '\\') @@ -117,227 +107,159 @@ static const char * volatile charset_aliases; /* Return a pointer to the contents of the charset.alias file. */ static const char * -get_charset_aliases (void) +get_charset_aliases () { const char *cp; cp = charset_aliases; if (cp == NULL) { -#if !(defined DARWIN7 || defined VMS || defined WIN32_NATIVE || defined __CYGWIN__) +#if !(defined VMS || defined WIN32) + FILE *fp; const char *dir; const char *base = "charset.alias"; char *file_name; /* Make it possible to override the charset.alias location. This is - necessary for running the testsuite before "make install". */ + necessary for running the testsuite before "make install". */ dir = getenv ("CHARSETALIASDIR"); if (dir == NULL || dir[0] == '\0') - dir = relocate (LIBDIR); + dir = relocate (LIBDIR); /* Concatenate dir and base into freshly allocated file_name. */ { - size_t dir_len = strlen (dir); - size_t base_len = strlen (base); - int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1])); - file_name = (char *) malloc (dir_len + add_slash + base_len + 1); - if (file_name != NULL) - { - memcpy (file_name, dir, dir_len); - if (add_slash) - file_name[dir_len] = DIRECTORY_SEPARATOR; - memcpy (file_name + dir_len + add_slash, base, base_len + 1); - } + size_t dir_len = strlen (dir); + size_t base_len = strlen (base); + int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1])); + file_name = (char *) malloc (dir_len + add_slash + base_len + 1); + if (file_name != NULL) + { + memcpy (file_name, dir, dir_len); + if (add_slash) + file_name[dir_len] = DIRECTORY_SEPARATOR; + memcpy (file_name + dir_len + add_slash, base, base_len + 1); + } } - if (file_name == NULL) - /* Out of memory. Treat the file as empty. */ - cp = ""; + if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL) + /* Out of memory or file not found, treat it as empty. */ + cp = ""; else - { - int fd; - - /* Open the file. Reject symbolic links on platforms that support - O_NOFOLLOW. This is a security feature. Without it, an attacker - could retrieve parts of the contents (namely, the tail of the - first line that starts with "* ") of an arbitrary file by placing - a symbolic link to that file under the name "charset.alias" in - some writable directory and defining the environment variable - CHARSETALIASDIR to point to that directory. */ - fd = open (file_name, - O_RDONLY | (HAVE_WORKING_O_NOFOLLOW ? O_NOFOLLOW : 0)); - if (fd < 0) - /* File not found. Treat it as empty. */ - cp = ""; - else - { - FILE *fp; - - fp = fdopen (fd, "r"); - if (fp == NULL) - { - /* Out of memory. Treat the file as empty. */ - close (fd); - cp = ""; - } - else - { - /* Parse the file's contents. */ - char *res_ptr = NULL; - size_t res_size = 0; - - for (;;) - { - int c; - char buf1[50+1]; - char buf2[50+1]; - size_t l1, l2; - char *old_res_ptr; - - c = getc (fp); - if (c == EOF) - break; - if (c == '\n' || c == ' ' || c == '\t') - continue; - if (c == '#') - { - /* Skip comment, to end of line. */ - do - c = getc (fp); - while (!(c == EOF || c == '\n')); - if (c == EOF) - break; - continue; - } - ungetc (c, fp); - if (fscanf (fp, "%50s %50s", buf1, buf2) < 2) - break; - l1 = strlen (buf1); - l2 = strlen (buf2); - old_res_ptr = res_ptr; - if (res_size == 0) - { - res_size = l1 + 1 + l2 + 1; - res_ptr = (char *) malloc (res_size + 1); - } - else - { - res_size += l1 + 1 + l2 + 1; - res_ptr = (char *) realloc (res_ptr, res_size + 1); - } - if (res_ptr == NULL) - { - /* Out of memory. */ - res_size = 0; - if (old_res_ptr != NULL) - free (old_res_ptr); - break; - } - strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1); - strcpy (res_ptr + res_size - (l2 + 1), buf2); - } - fclose (fp); - if (res_size == 0) - cp = ""; - else - { - *(res_ptr + res_size) = '\0'; - cp = res_ptr; - } - } - } - - free (file_name); - } + { + /* Parse the file's contents. */ + char *res_ptr = NULL; + size_t res_size = 0; + + for (;;) + { + int c; + char buf1[50+1]; + char buf2[50+1]; + size_t l1, l2; + char *old_res_ptr; + + c = getc (fp); + if (c == EOF) + break; + if (c == '\n' || c == ' ' || c == '\t') + continue; + if (c == '#') + { + /* Skip comment, to end of line. */ + do + c = getc (fp); + while (!(c == EOF || c == '\n')); + if (c == EOF) + break; + continue; + } + ungetc (c, fp); + if (fscanf (fp, "%50s %50s", buf1, buf2) < 2) + break; + l1 = strlen (buf1); + l2 = strlen (buf2); + old_res_ptr = res_ptr; + if (res_size == 0) + { + res_size = l1 + 1 + l2 + 1; + res_ptr = (char *) malloc (res_size + 1); + } + else + { + res_size += l1 + 1 + l2 + 1; + res_ptr = (char *) realloc (res_ptr, res_size + 1); + } + if (res_ptr == NULL) + { + /* Out of memory. */ + res_size = 0; + if (old_res_ptr != NULL) + free (old_res_ptr); + break; + } + strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1); + strcpy (res_ptr + res_size - (l2 + 1), buf2); + } + fclose (fp); + if (res_size == 0) + cp = ""; + else + { + *(res_ptr + res_size) = '\0'; + cp = res_ptr; + } + } + + if (file_name != NULL) + free (file_name); #else -# if defined DARWIN7 - /* To avoid the trouble of installing a file that is shared by many - GNU packages -- many packaging systems have problems with this --, - simply inline the aliases here. */ - cp = "ISO8859-1" "\0" "ISO-8859-1" "\0" - "ISO8859-2" "\0" "ISO-8859-2" "\0" - "ISO8859-4" "\0" "ISO-8859-4" "\0" - "ISO8859-5" "\0" "ISO-8859-5" "\0" - "ISO8859-7" "\0" "ISO-8859-7" "\0" - "ISO8859-9" "\0" "ISO-8859-9" "\0" - "ISO8859-13" "\0" "ISO-8859-13" "\0" - "ISO8859-15" "\0" "ISO-8859-15" "\0" - "KOI8-R" "\0" "KOI8-R" "\0" - "KOI8-U" "\0" "KOI8-U" "\0" - "CP866" "\0" "CP866" "\0" - "CP949" "\0" "CP949" "\0" - "CP1131" "\0" "CP1131" "\0" - "CP1251" "\0" "CP1251" "\0" - "eucCN" "\0" "GB2312" "\0" - "GB2312" "\0" "GB2312" "\0" - "eucJP" "\0" "EUC-JP" "\0" - "eucKR" "\0" "EUC-KR" "\0" - "Big5" "\0" "BIG5" "\0" - "Big5HKSCS" "\0" "BIG5-HKSCS" "\0" - "GBK" "\0" "GBK" "\0" - "GB18030" "\0" "GB18030" "\0" - "SJIS" "\0" "SHIFT_JIS" "\0" - "ARMSCII-8" "\0" "ARMSCII-8" "\0" - "PT154" "\0" "PT154" "\0" - /*"ISCII-DEV" "\0" "?" "\0"*/ - "*" "\0" "UTF-8" "\0"; -# endif - # if defined VMS /* To avoid the troubles of an extra file charset.alias_vms in the - sources of many GNU packages, simply inline the aliases here. */ + sources of many GNU packages, simply inline the aliases here. */ /* The list of encodings is taken from the OpenVMS 7.3-1 documentation - "Compaq C Run-Time Library Reference Manual for OpenVMS systems" - section 10.7 "Handling Different Character Sets". */ + "Compaq C Run-Time Library Reference Manual for OpenVMS systems" + section 10.7 "Handling Different Character Sets". */ cp = "ISO8859-1" "\0" "ISO-8859-1" "\0" - "ISO8859-2" "\0" "ISO-8859-2" "\0" - "ISO8859-5" "\0" "ISO-8859-5" "\0" - "ISO8859-7" "\0" "ISO-8859-7" "\0" - "ISO8859-8" "\0" "ISO-8859-8" "\0" - "ISO8859-9" "\0" "ISO-8859-9" "\0" - /* Japanese */ - "eucJP" "\0" "EUC-JP" "\0" - "SJIS" "\0" "SHIFT_JIS" "\0" - "DECKANJI" "\0" "DEC-KANJI" "\0" - "SDECKANJI" "\0" "EUC-JP" "\0" - /* Chinese */ - "eucTW" "\0" "EUC-TW" "\0" - "DECHANYU" "\0" "DEC-HANYU" "\0" - "DECHANZI" "\0" "GB2312" "\0" - /* Korean */ - "DECKOREAN" "\0" "EUC-KR" "\0"; + "ISO8859-2" "\0" "ISO-8859-2" "\0" + "ISO8859-5" "\0" "ISO-8859-5" "\0" + "ISO8859-7" "\0" "ISO-8859-7" "\0" + "ISO8859-8" "\0" "ISO-8859-8" "\0" + "ISO8859-9" "\0" "ISO-8859-9" "\0" + /* Japanese */ + "eucJP" "\0" "EUC-JP" "\0" + "SJIS" "\0" "SHIFT_JIS" "\0" + "DECKANJI" "\0" "DEC-KANJI" "\0" + "SDECKANJI" "\0" "EUC-JP" "\0" + /* Chinese */ + "eucTW" "\0" "EUC-TW" "\0" + "DECHANYU" "\0" "DEC-HANYU" "\0" + "DECHANZI" "\0" "GB2312" "\0" + /* Korean */ + "DECKOREAN" "\0" "EUC-KR" "\0"; # endif -# if defined WIN32_NATIVE || defined __CYGWIN__ +# if defined WIN32 /* To avoid the troubles of installing a separate file in the same - directory as the DLL and of retrieving the DLL's directory at - runtime, simply inline the aliases here. */ + directory as the DLL and of retrieving the DLL's directory at + runtime, simply inline the aliases here. */ cp = "CP936" "\0" "GBK" "\0" - "CP1361" "\0" "JOHAB" "\0" - "CP20127" "\0" "ASCII" "\0" - "CP20866" "\0" "KOI8-R" "\0" - "CP20936" "\0" "GB2312" "\0" - "CP21866" "\0" "KOI8-RU" "\0" - "CP28591" "\0" "ISO-8859-1" "\0" - "CP28592" "\0" "ISO-8859-2" "\0" - "CP28593" "\0" "ISO-8859-3" "\0" - "CP28594" "\0" "ISO-8859-4" "\0" - "CP28595" "\0" "ISO-8859-5" "\0" - "CP28596" "\0" "ISO-8859-6" "\0" - "CP28597" "\0" "ISO-8859-7" "\0" - "CP28598" "\0" "ISO-8859-8" "\0" - "CP28599" "\0" "ISO-8859-9" "\0" - "CP28605" "\0" "ISO-8859-15" "\0" - "CP38598" "\0" "ISO-8859-8" "\0" - "CP51932" "\0" "EUC-JP" "\0" - "CP51936" "\0" "GB2312" "\0" - "CP51949" "\0" "EUC-KR" "\0" - "CP51950" "\0" "EUC-TW" "\0" - "CP54936" "\0" "GB18030" "\0" - "CP65001" "\0" "UTF-8" "\0"; + "CP1361" "\0" "JOHAB" "\0" + "CP20127" "\0" "ASCII" "\0" + "CP20866" "\0" "KOI8-R" "\0" + "CP21866" "\0" "KOI8-RU" "\0" + "CP28591" "\0" "ISO-8859-1" "\0" + "CP28592" "\0" "ISO-8859-2" "\0" + "CP28593" "\0" "ISO-8859-3" "\0" + "CP28594" "\0" "ISO-8859-4" "\0" + "CP28595" "\0" "ISO-8859-5" "\0" + "CP28596" "\0" "ISO-8859-6" "\0" + "CP28597" "\0" "ISO-8859-7" "\0" + "CP28598" "\0" "ISO-8859-8" "\0" + "CP28599" "\0" "ISO-8859-9" "\0" + "CP28605" "\0" "ISO-8859-15" "\0"; # endif #endif @@ -357,74 +279,18 @@ get_charset_aliases (void) STATIC #endif const char * -locale_charset (void) +locale_charset () { const char *codeset; const char *aliases; -#if !(defined WIN32_NATIVE || defined OS2) +#if !(defined WIN32 || defined OS2) # if HAVE_LANGINFO_CODESET /* Most systems support nl_langinfo (CODESET) nowadays. */ codeset = nl_langinfo (CODESET); -# ifdef __CYGWIN__ - /* Cygwin < 1.7 does not have locales. nl_langinfo (CODESET) always - returns "US-ASCII". Return the suffix of the locale name from the - environment variables (if present) or the codepage as a number. */ - if (codeset != NULL && strcmp (codeset, "US-ASCII") == 0) - { - const char *locale; - static char buf[2 + 10 + 1]; - - locale = getenv ("LC_ALL"); - if (locale == NULL || locale[0] == '\0') - { - locale = getenv ("LC_CTYPE"); - if (locale == NULL || locale[0] == '\0') - locale = getenv ("LANG"); - } - if (locale != NULL && locale[0] != '\0') - { - /* If the locale name contains an encoding after the dot, return - it. */ - const char *dot = strchr (locale, '.'); - - if (dot != NULL) - { - const char *modifier; - - dot++; - /* Look for the possible @... trailer and remove it, if any. */ - modifier = strchr (dot, '@'); - if (modifier == NULL) - return dot; - if (modifier - dot < sizeof (buf)) - { - memcpy (buf, dot, modifier - dot); - buf [modifier - dot] = '\0'; - return buf; - } - } - } - - /* Woe32 has a function returning the locale's codepage as a number: - GetACP(). This encoding is used by Cygwin, unless the user has set - the environment variable CYGWIN=codepage:oem (which very few people - do). - Output directed to console windows needs to be converted (to - GetOEMCP() if the console is using a raster font, or to - GetConsoleOutputCP() if it is using a TrueType font). Cygwin does - this conversion transparently (see winsup/cygwin/fhandler_console.cc), - converting to GetConsoleOutputCP(). This leads to correct results, - except when SetConsoleOutputCP has been called and a raster font is - in use. */ - sprintf (buf, "CP%u", GetACP ()); - codeset = buf; - } -# endif - # else /* On old systems which lack it, use setlocale or getenv. */ @@ -434,18 +300,18 @@ locale_charset (void) (like SunOS 4 or DJGPP) have only the C locale. Therefore we don't use setlocale here; it would return "C" when it doesn't support the locale name the user has set. */ -# if 0 +# if HAVE_SETLOCALE && 0 locale = setlocale (LC_CTYPE, NULL); # endif if (locale == NULL || locale[0] == '\0') { locale = getenv ("LC_ALL"); if (locale == NULL || locale[0] == '\0') - { - locale = getenv ("LC_CTYPE"); - if (locale == NULL || locale[0] == '\0') - locale = getenv ("LANG"); - } + { + locale = getenv ("LC_CTYPE"); + if (locale == NULL || locale[0] == '\0') + locale = getenv ("LANG"); + } } /* On some old systems, one used to set locale = "iso8859_1". On others, @@ -455,17 +321,11 @@ locale_charset (void) # endif -#elif defined WIN32_NATIVE +#elif defined WIN32 static char buf[2 + 10 + 1]; - /* Woe32 has a function returning the locale's codepage as a number: - GetACP(). - When the output goes to a console window, it needs to be provided in - GetOEMCP() encoding if the console is using a raster font, or in - GetConsoleOutputCP() encoding if it is using a TrueType font. - But in GUI programs and for output sent to files and pipes, GetACP() - encoding is the best bet. */ + /* Woe32 has a function returning the locale's codepage as a number. */ sprintf (buf, "CP%u", GetACP ()); codeset = buf; @@ -483,7 +343,7 @@ locale_charset (void) { locale = getenv ("LC_CTYPE"); if (locale == NULL || locale[0] == '\0') - locale = getenv ("LANG"); + locale = getenv ("LANG"); } if (locale != NULL && locale[0] != '\0') { @@ -491,21 +351,21 @@ locale_charset (void) const char *dot = strchr (locale, '.'); if (dot != NULL) - { - const char *modifier; - - dot++; - /* Look for the possible @... trailer and remove it, if any. */ - modifier = strchr (dot, '@'); - if (modifier == NULL) - return dot; - if (modifier - dot < sizeof (buf)) - { - memcpy (buf, dot, modifier - dot); - buf [modifier - dot] = '\0'; - return buf; - } - } + { + const char *modifier; + + dot++; + /* Look for the possible @... trailer and remove it, if any. */ + modifier = strchr (dot, '@'); + if (modifier == NULL) + return dot; + if (modifier - dot < sizeof (buf)) + { + memcpy (buf, dot, modifier - dot); + buf [modifier - dot] = '\0'; + return buf; + } + } /* Resolve through the charset.alias file. */ codeset = locale; @@ -514,12 +374,12 @@ locale_charset (void) { /* OS/2 has a function returning the locale's codepage as a number. */ if (DosQueryCp (sizeof (cp), cp, &cplen)) - codeset = ""; + codeset = ""; else - { - sprintf (buf, "CP%u", cp[0]); - codeset = buf; - } + { + sprintf (buf, "CP%u", cp[0]); + codeset = buf; + } } #endif @@ -533,10 +393,10 @@ locale_charset (void) *aliases != '\0'; aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1) if (strcmp (codeset, aliases) == 0 - || (aliases[0] == '*' && aliases[1] == '\0')) + || (aliases[0] == '*' && aliases[1] == '\0')) { - codeset = aliases + strlen (aliases) + 1; - break; + codeset = aliases + strlen (aliases) + 1; + break; } /* Don't return an empty string. GNU libc and GNU libiconv interpret