size_t
wcsftime_l(wchar_t *wcs, size_t maxsize,
const wchar_t *format, const struct tm *timeptr, locale_t loc)
{
char *dst, *dstp, *sformat;
size_t n, sflen;
int sverrno;
sformat = dst = NULL;
/*
* Convert the supplied format string to a multibyte representation
* for strftime(), which only handles single-byte characters.
*/
sflen = wcstombs_l(NULL, format, 0, loc);
if (sflen == (size_t)-1)
goto error;
if ((sformat = malloc(sflen + 1)) == NULL)
goto error;
wcstombs_l(sformat, format, sflen + 1, loc);
/*
* Allocate memory for longest multibyte sequence that will fit
* into the caller's buffer and call strftime() to fill it.
* Then, copy and convert the result back into wide characters in
* the caller's buffer.
*/
if (SIZE_T_MAX / MB_CUR_MAX_L(loc) <= maxsize) {
/* maxsize is preposterously large - avoid int. overflow. */
errno = EINVAL;
goto error;
}
dst = malloc(maxsize * MB_CUR_MAX_L(loc));
if (dst == NULL)
goto error;
if (strftime_l(dst, maxsize, sformat, timeptr, loc) == 0)
goto error;
dstp = dst;
n = mbstowcs_l(wcs, dstp, maxsize, loc);
if (n == (size_t)-2 || n == (size_t)-1)
goto error;
free(sformat);
free(dst);
return n;
error:
sverrno = errno;
free(sformat);
free(dst);
errno = sverrno;
return 0;
}
STATIC
#endif
const char *
locale_charset (void)
{
const char *codeset;
const char *aliases;
/* Force output encoding, particularly useful for redirected output on win32
where charset detection fails when no actual console is attached. */
const char *forced_encoding = getenv("GETTEXTIOENCODING");
if (forced_encoding)
return forced_encoding;
#if !(defined WINDOWS_NATIVE || 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;
}
}
}
/* The Windows API 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. */
const char *locale = NULL;
/* But most old systems don't have a complete set of locales. Some
(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
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");
}
}
/* On some old systems, one used to set locale = "iso8859_1". On others,
you set it to "language_COUNTRY.charset". In any case, we resolve it
through the charset.alias file. */
codeset = locale;
# endif
#elif defined WINDOWS_NATIVE
static char buf[2 + 10 + 1];
/* The Windows API has a function returning the locale's codepage as
a number, but the value doesn't change according to what the
'setlocale' call specified. So we use it as a last resort, in
case the string returned by 'setlocale' doesn't specify the
codepage. */
char *current_locale = setlocale (LC_ALL, NULL);
char *pdot;
/* If they set different locales for different categories,
'setlocale' will return a semi-colon separated list of locale
values. To make sure we use the correct one, we choose LC_CTYPE. */
if (strchr (current_locale, ';'))
current_locale = setlocale (LC_CTYPE, NULL);
pdot = strrchr (current_locale, '.');
if (pdot)
sprintf (buf, "CP%s", pdot + 1);
else
{
/* The Windows API 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. */
sprintf (buf, "CP%u", GetACP ());
}
codeset = buf;
#elif defined OS2
const char *locale;
static char buf[2 + 10 + 1];
ULONG cp[3];
ULONG cplen;
codeset = NULL;
/* Allow user to override the codeset, as set in the operating system,
with standard language environment variables. */
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;
}
}
/* For the POSIX locale, don't use the system's codepage. */
if (strcmp (locale, "C") == 0 || strcmp (locale, "POSIX") == 0)
codeset = "";
}
if (codeset == NULL)
{
/* OS/2 has a function returning the locale's codepage as a number. */
if (DosQueryCp (sizeof (cp), cp, &cplen))
codeset = "";
else
{
sprintf (buf, "CP%u", cp[0]);
codeset = buf;
}
}
#endif
if (codeset == NULL)
/* The canonical name cannot be determined. */
codeset = "";
/* Resolve alias. */
for (aliases = get_charset_aliases ();
*aliases != '\0';
aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
if (strcmp (codeset, aliases) == 0
|| (aliases[0] == '*' && aliases[1] == '\0'))
{
codeset = aliases + strlen (aliases) + 1;
break;
}
/* Don't return an empty string. GNU libc and GNU libiconv interpret
the empty string as denoting "the locale's character encoding",
thus GNU libiconv would call this function a second time. */
if (codeset[0] == '\0')
codeset = "ASCII";
#ifdef DARWIN7
/* Mac OS X sets MB_CUR_MAX to 1 when LC_ALL=C, and "UTF-8"
(the default codeset) does not work when MB_CUR_MAX is 1. */
if (strcmp (codeset, "UTF-8") == 0 && MB_CUR_MAX_L (uselocale (NULL)) <= 1)
codeset = "ASCII";
#endif
return codeset;
}
static int
__glob(const char *pattern, glob_t *pglob)
{
const char *patnext;
struct glob_limit limit = { 0, 0, 0, 0 };
Char *bufnext, *bufend, patbuf[MAXPATHLEN], prot;
mbstate_t mbs;
wchar_t wc;
size_t clen;
locale_t loc = __current_locale();
int mb_cur_max = MB_CUR_MAX_L(loc);
patnext = pattern;
if (!(pglob->gl_flags & GLOB_APPEND)) {
pglob->gl_pathc = 0;
pglob->gl_pathv = NULL;
if (!(pglob->gl_flags & GLOB_DOOFFS))
pglob->gl_offs = 0;
}
pglob->gl_matchc = 0;
bufnext = patbuf;
bufend = bufnext + MAXPATHLEN - 1;
if (pglob->gl_flags & GLOB_NOESCAPE) {
memset(&mbs, 0, sizeof(mbs));
while (bufend - bufnext >= mb_cur_max) {
clen = mbrtowc_l(&wc, patnext, MB_LEN_MAX, &mbs, loc);
if (clen == (size_t)-1 || clen == (size_t)-2)
return (GLOB_NOMATCH);
else if (clen == 0)
break;
*bufnext++ = wc;
patnext += clen;
}
} else {
/* Protect the quoted characters. */
memset(&mbs, 0, sizeof(mbs));
while (bufend - bufnext >= mb_cur_max) {
if (*patnext == QUOTE) {
if (*++patnext == EOS) {
*bufnext++ = QUOTE | M_PROTECT;
continue;
}
prot = M_PROTECT;
} else
prot = 0;
clen = mbrtowc_l(&wc, patnext, MB_LEN_MAX, &mbs, loc);
if (clen == (size_t)-1 || clen == (size_t)-2)
return (GLOB_NOMATCH);
else if (clen == 0)
break;
*bufnext++ = wc | prot;
patnext += clen;
}
}
*bufnext = EOS;
if (pglob->gl_flags & GLOB_BRACE)
return globexp1(patbuf, pglob, &limit, loc);
else
return glob0(patbuf, pglob, &limit, loc);
}
