source: scripts/fetch/eglibc/2.10.1/15-fnpatch.patch@ dc398928

2005-04-12  Andreas Schwab  <schwab@suse.de>

        * posix/fnmatch.c (fnmatch): If conversion to wide character
        fails fall back to single byte matching.

Index: posix/fnmatch.c
===================================================================
--- posix/fnmatch.c.orig        2007-05-18 10:40:34.000000000 +0200
+++ posix/fnmatch.c     2007-05-18 13:21:47.199478000 +0200
@@ -327,6 +327,7 @@
 # if HANDLE_MULTIBYTE
   if (__builtin_expect (MB_CUR_MAX, 1) != 1)
     {
+      const char *orig_pattern = pattern;
       mbstate_t ps;
       size_t n;
       const char *p;
@@ -378,10 +379,8 @@
          wstring = (wchar_t *) alloca ((n + 1) * sizeof (wchar_t));
          n = mbsrtowcs (wstring, &p, n + 1, &ps);
          if (__builtin_expect (n == (size_t) -1, 0))
-           /* Something wrong.
-              XXX Do we have to set `errno' to something which mbsrtows hasn't
-              already done?  */
-           return -1;
+           /* Something wrong.  Fall back to single byte matching.  */
+           goto try_singlebyte;
          if (p)
            memset (&ps, '\0', sizeof (ps));
        }
@@ -389,10 +388,8 @@
        {
          n = mbsrtowcs (NULL, &string, 0, &ps);
          if (__builtin_expect (n == (size_t) -1, 0))
-           /* Something wrong.
-              XXX Do we have to set `errno' to something which mbsrtows hasn't
-              already done?  */
-           return -1;
+           /* Something wrong.  Fall back to single byte matching.  */
+           goto try_singlebyte;
          wstring = (wchar_t *) alloca ((n + 1) * sizeof (wchar_t));
          assert (mbsinit (&ps));
          (void) mbsrtowcs (wstring, &string, n + 1, &ps);
@@ -400,6 +397,9 @@
 
       return internal_fnwmatch (wpattern, wstring, wstring + n,
                                flags & FNM_PERIOD, flags, NULL);
+
+    try_singlebyte:
+      pattern = orig_pattern;
     }
 # endif  /* mbstate_t and mbsrtowcs or _LIBC.  */