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authorUlrich Drepper <drepper@redhat.com>2000-07-28 19:52:40 +0000
committerUlrich Drepper <drepper@redhat.com>2000-07-28 19:52:40 +0000
commit5e4633932782f08412e8cee75236f4f458591a3d (patch)
tree692ccf39058d6d1df8ac1067462731b8b7d8dfb1 /posix/fnmatch.c
parenteac4282fa6325e5633bdfee7a6afd9f943b34b1a (diff)
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Update.
2000-07-27 Bruno Haible <haible@clisp.cons.org> * locale/C-ctype.c (_nl_C_LC_CTYPE): Swap the two names in _NL_CTYPE_MAP_NAMES. * locale/localeinfo.h (__TOW_toupper, __TOW_tolower): New enum values. * wctype/wcfuncs.c (towlower, towupper): Use them. * wctype/wcfuncs_l.c (__towlower_l, __towupper_l): Likewise. * wctype/wctrans.c (wctrans): Likewise. * wctype/wctrans_l.c (__wctrans_l): Likewise. 2000-07-27 Bruno Haible <haible@clisp.cons.org> * posix/fnmatch.c (is_char_class): Fix logic. Avoid buffer overrun. Use the optimized version of this function outside glibc as well.
Diffstat (limited to 'posix/fnmatch.c')
-rw-r--r--posix/fnmatch.c83
1 files changed, 49 insertions, 34 deletions
diff --git a/posix/fnmatch.c b/posix/fnmatch.c
index 62cfa5f..b6f67ae 100644
--- a/posix/fnmatch.c
+++ b/posix/fnmatch.c
@@ -224,13 +224,13 @@ __wcschrnul (s, c)
# define SUFFIX WC
# define WIDE_CHAR_VERSION 1
-
# undef IS_CHAR_CLASS
-# ifdef _LIBC
/* We have to convert the wide character string in a multibyte string. But
- we know that the character class names are ASCII strings and since the
- internal wide character encoding is UCS4 we can use a simplified method
- to convert the string to a multibyte character string. */
+ we know that the character class names consist of alphanumeric characters
+ from the portable character set, and since the wide character encoding
+ for a member of the portable character set is the same code point as
+ its single-byte encoding, we can use a simplified method to convert the
+ string to a multibyte character string. */
static wctype_t
is_char_class (const wchar_t *wcs)
{
@@ -239,47 +239,62 @@ is_char_class (const wchar_t *wcs)
do
{
- if (*wcs < 0x20 || *wcs >= 0x7f)
- return 0;
-
- *cp++ = (char) *wcs;
- }
- while (*wcs++ != L'\0');
-
- return __wctype (s);
-}
+ /* Test for a printable character from the portable character set. */
+# ifdef _LIBC
+ if (*wcs < 0x20 || *wcs > 0x7e
+ || *wcs == 0x24 || *wcs == 0x40 || *wcs == 0x60)
+ return (wctype_t) 0;
# else
-/* Since we cannot assume anything about the internal encoding we have to
- convert the string back to multibyte representation the hard way. */
-static wctype_t
-is_char_class (const wchar_t *wcs)
-{
- mbstate_t ps;
- const wchar_t *pwc;
- char *s;
- size_t n;
+ switch (*wcs)
+ {
+ case L' ': case L'!': case L'"': case L'#': case L'%':
+ case L'&': case L'\'': case L'(': case L')': case L'*':
+ case L'+': case L',': case L'-': case L'.': case L'/':
+ case L'0': case L'1': case L'2': case L'3': case L'4':
+ case L'5': case L'6': case L'7': case L'8': case L'9':
+ case L':': case L';': case L'<': case L'=': case L'>':
+ case L'?':
+ case L'A': case L'B': case L'C': case L'D': case L'E':
+ case L'F': case L'G': case L'H': case L'I': case L'J':
+ case L'K': case L'L': case L'M': case L'N': case L'O':
+ case L'P': case L'Q': case L'R': case L'S': case L'T':
+ case L'U': case L'V': case L'W': case L'X': case L'Y':
+ case L'Z':
+ case L'[': case L'\\': case L']': case L'^': case L'_':
+ case L'a': case L'b': case L'c': case L'd': case L'e':
+ case L'f': case L'g': case L'h': case L'i': case L'j':
+ case L'k': case L'l': case L'm': case L'n': case L'o':
+ case L'p': case L'q': case L'r': case L's': case L't':
+ case L'u': case L'v': case L'w': case L'x': case L'y':
+ case L'z': case L'{': case L'|': case L'}': case L'~':
+ break;
+ default:
+ return (wctype_t) 0;
+ }
+# endif
- memset (&ps, '\0', sizeof (ps));
+ /* Avoid overrunning the buffer. */
+ if (cp == s + CHAR_CLASS_MAX_LENGTH)
+ return (wctype_t) 0;
- pwc = wcs;
- n = wcsrtombs (NULL, &pwc, 0, &ps);
- if (n == (size_t) -1)
- /* Something went wrong. */
- return 0;
+ *cp++ = (char) *wcs++;
+ }
+ while (*wcs != L'\0');
- s = alloca (n + 1);
- assert (mbsinit (&ps));
- pwc = wcs;
- (void) wcsrtombs (s, &pwc, n + 1, &ps);
+ *cp = '\0';
+# ifdef _LIBC
+ return __wctype (s);
+# else
return wctype (s);
-}
# endif
+}
# define IS_CHAR_CLASS(string) is_char_class (string)
# include "fnmatch_loop.c"
# endif
+
int
fnmatch (pattern, string, flags)
const char *pattern;