static char NO_COPY cygterm[] = "TERM=cygwin";
myfault efault;
tmp_pathbuf tp;
- static const char *lc_arr[] = { "LC_ALL", "LC_CTYPE", "LANG", NULL };
if (efault.faulted ())
api_fatal ("internal error reading the windows environment - too many environment variables?");
/* Allocate space for environment + trailing NULL + CYGWIN env. */
lastenviron = envp = (char **) malloc ((4 + (envc = 100)) * sizeof (char *));
- /* We need the locale variables' content before we can loop through
- the whole environment, so that the wide-char to multibyte conversion
- can be done according to the $LC_ALL/$LC_CTYPE/$LANG/current_codepage
- setting, as well as the uppercasing according to the "upcaseenv"
- setting. Note that we have to reset the LC_CTYPE setting to "C"
- before calling main() for POSIX compatibility. */
- for (int lc = 0; lc_arr[lc]; ++lc)
- {
- if ((i = GetEnvironmentVariableA (lc_arr[lc], NULL, 0)))
- {
- char *buf = (char *) alloca (i);
- GetEnvironmentVariableA (lc_arr[lc], buf, i);
- if (setlocale (LC_CTYPE, buf))
- break;
- }
- }
/* We also need the CYGWIN variable early to know the value of the
CYGWIN=upcaseenv setting for the below loop. */
if ((i = GetEnvironmentVariableA ("CYGWIN", NULL, 0)))
}
static char *
-internal_setlocale (char *ret)
-{
- tmp_pathbuf tp;
+check_codepage (char *ret)
+{
+ if (!wincap.has_always_all_codepages ())
+ {
+ /* Prior to Windows Vista, many codepages are not installed by
+ default, or can be deinstalled. The following codepages require
+ that the respective conversion tables are installed into the OS.
+ So we check if they are installed and if not, setlocale should
+ fail. */
+ CPINFO cpi;
+ UINT cp = 0;
+ if (__mbtowc == __sjis_mbtowc)
+ cp = 932;
+ else if (__mbtowc == __eucjp_mbtowc)
+ cp = 20932;
+ else if (__mbtowc == __gbk_mbtowc)
+ cp = 936;
+ else if (__mbtowc == __kr_mbtowc)
+ cp = 949;
+ else if (__mbtowc == __big5_mbtowc)
+ cp = 950;
+ if (cp && !GetCPInfo (cp, &cpi)
+ && GetLastError () == ERROR_INVALID_PARAMETER)
+ return NULL;
+ }
+ return ret;
+}
- /* Each setlocale potentially changes the multibyte representation
- of the CWD. Therefore we have to reevaluate the CWD's posix path and
- store in the new charset. */
+static void
+internal_setlocale ()
+{
+ /* Each setlocale from the environment potentially changes the
+ multibyte representation of the CWD. Therefore we have to
+ reevaluate the CWD's posix path and store in the new charset.
+ Same for the PATH environment variable. */
/* FIXME: Other buffered paths might be affected as well. */
- wchar_t *w_cwd = tp.w_get ();
+ tmp_pathbuf tp;
+ wchar_t *w_path, *w_cwd;
+
+ debug_printf ("Cygwin charset changed from %s to %s",
+ cygheap->locale.charset, __locale_charset ());
+ /* Fetch CWD and PATH and convert to wchar_t in previous charset. */
+ w_path = tp.w_get ();
+ sys_mbstowcs (w_path, 32768, getenv ("PATH"));
+ w_cwd = tp.w_get ();
cwdstuff::cwd_lock.acquire ();
sys_mbstowcs (w_cwd, 32768, cygheap->cwd.get_posix ());
-
- if (*__locale_charset () == 'A')
- {
- cygheap->locale.mbtowc = __utf8_mbtowc;
- cygheap->locale.wctomb = __utf8_wctomb;
- }
- else
- {
- if (!wincap.has_always_all_codepages ())
- {
- /* Prior to Windows Vista, many codepages are not installed by
- default, or can be deinstalled. The following codepages require
- that the respective conversion tables are installed into the OS.
- So we check if they are installed and if not, setlocale should
- fail. */
- CPINFO cpi;
- UINT cp = 0;
- if (__mbtowc == __sjis_mbtowc)
- cp = 932;
- else if (__mbtowc == __eucjp_mbtowc)
- cp = 20932;
- else if (__mbtowc == __gbk_mbtowc)
- cp = 936;
- else if (__mbtowc == __kr_mbtowc)
- cp = 949;
- else if (__mbtowc == __big5_mbtowc)
- cp = 950;
- if (cp && !GetCPInfo (cp, &cpi)
- && GetLastError () == ERROR_INVALID_PARAMETER)
- return NULL;
- }
- cygheap->locale.mbtowc = __mbtowc;
- cygheap->locale.wctomb = __wctomb;
- }
+ /* Set charset for internal conversion functions. */
+ cygheap->locale.mbtowc = __mbtowc;
+ cygheap->locale.wctomb = __wctomb;
strcpy (cygheap->locale.charset, __locale_charset ());
-
- /* See above. */
+ /* Restore CWD and PATH in new charset. */
cygheap->cwd.reset_posix (w_cwd);
cwdstuff::cwd_lock.release ();
- return ret;
+ char *c_path = tp.c_get ();
+ sys_wcstombs (c_path, 32768, w_path);
+ setenv ("PATH", c_path, 1);
}
extern "C" char *
setlocale (int category, const char *locale)
{
char old[(LC_MESSAGES + 1) * (ENCODING_LEN + 1/*"/"*/ + 1)];
- if (locale && (category == LC_ALL || category == LC_CTYPE)
- && !wincap.has_always_all_codepages ())
+ if (locale && !wincap.has_always_all_codepages ())
stpcpy (old, _setlocale_r (_REENT, category, NULL));
char *ret = _setlocale_r (_REENT, category, locale);
- if (ret && locale && (category == LC_ALL || category == LC_CTYPE)
- && !(ret = internal_setlocale (ret)))
- _setlocale_r (_REENT, category, old);
+ if (ret && locale)
+ {
+ if (!(ret = check_codepage (ret)))
+ _setlocale_r (_REENT, category, old);
+ else if (!*locale && strcmp (cygheap->locale.charset,
+ __locale_charset ()) != 0)
+ internal_setlocale ();
+ }
return ret;
}
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