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* libc/fnmatch.c: Replace with multibyte capable version from FreeBSD.

This commit is contained in:
Corinna Vinschen 2010-01-16 15:11:56 +00:00
parent 1b526b480b
commit 011560c87d
2 changed files with 149 additions and 68 deletions
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4
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,7 @@
2010-01-15 Corinna Vinschen <corinna@vinschen.de>
* libc/fnmatch.c: Replace with multibyte capable version from FreeBSD.
2010-01-15 Corinna Vinschen <corinna@vinschen.de>
* fhandler_socket.cc (fhandler_socket::accept4): Reset async flag

213
winsup/cygwin/libc/fnmatch.c
View File

@ -1,5 +1,3 @@
/* $OpenBSD: fnmatch.c,v 1.7 2000/03/23 19:13:51 millert Exp $ */
/*
* Copyright (c) 1989, 1993, 1994
* The Regents of the University of California. All rights reserved.
@ -33,57 +31,94 @@
*/
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)fnmatch.c 8.2 (Berkeley) 4/16/94";
#else
static char rcsid[] = "$OpenBSD: fnmatch.c,v 1.7 2000/03/23 19:13:51 millert Exp $";
#endif
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
#if 0
__FBSDID("$FreeBSD: src/lib/libc/gen/fnmatch.c,v 1.18 2007/01/09 00:27:53 imp Exp $");
#endif
/*
* Function fnmatch() as specified in POSIX 1003.2-1992, section B.6.
* Compares a filename or pathname to a pattern.
*/
/* Just this single line added for Cygwin. */
#include "winsup.h"
/*
* Some notes on multibyte character support:
* 1. Patterns with illegal byte sequences match nothing.
* 2. Illegal byte sequences in the "string" argument are handled by treating
* them as single-byte characters with a value of the first byte of the
* sequence cast to wchar_t.
* 3. Multibyte conversion state objects (mbstate_t) are passed around and
* used for most, but not all, conversions. Further work will be required
* to support state-dependent encodings.
*/
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <fnmatch.h>
#include <limits.h>
#include <string.h>
#include <wchar.h>
#include <wctype.h>
#include "../posix/collate.h"
#define EOS '\0'
#define RANGE_MATCH 1
#define RANGE_NOMATCH 0
#define RANGE_ERROR (-1)
#define RANGE_MATCH 1
#define RANGE_NOMATCH 0
#define RANGE_ERROR (-1)
static int rangematch __P((const char *, char, int, char **));
static int rangematch(const char *, wchar_t, int, char **, mbstate_t *);
static int fnmatch1(const char *, const char *, int, mbstate_t, mbstate_t);
int
fnmatch(const char *pattern, const char *string, int flags)
fnmatch(pattern, string, flags)
const char *pattern, *string;
int flags;
{
static const mbstate_t initial;
return (fnmatch1(pattern, string, flags, initial, initial));
}
static int
fnmatch1(pattern, string, flags, patmbs, strmbs)
const char *pattern, *string;
int flags;
mbstate_t patmbs, strmbs;
{
const char *stringstart;
char *newp;
char c, test;
char c;
wchar_t pc, sc;
size_t pclen, sclen;
for (stringstart = string;;)
switch (c = *pattern++) {
for (stringstart = string;;) {
pclen = mbrtowc(&pc, pattern, MB_LEN_MAX, &patmbs);
if (pclen == (size_t)-1 || pclen == (size_t)-2)
return (FNM_NOMATCH);
pattern += pclen;
sclen = mbrtowc(&sc, string, MB_LEN_MAX, &strmbs);
if (sclen == (size_t)-1 || sclen == (size_t)-2) {
sc = (unsigned char)*string;
sclen = 1;
memset(&strmbs, 0, sizeof(strmbs));
}
switch (pc) {
case EOS:
if ((flags & FNM_LEADING_DIR) && *string == '/')
if ((flags & FNM_LEADING_DIR) && sc == '/')
return (0);
return (*string == EOS ? 0 : FNM_NOMATCH);
return (sc == EOS ? 0 : FNM_NOMATCH);
case '?':
if (*string == EOS)
if (sc == EOS)
return (FNM_NOMATCH);
if (*string == '/' && (flags & FNM_PATHNAME))
if (sc == '/' && (flags & FNM_PATHNAME))
return (FNM_NOMATCH);
if (*string == '.' && (flags & FNM_PERIOD) &&
if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
++string;
string += sclen;
break;
case '*':
c = *pattern;
@ -91,81 +126,104 @@ fnmatch(const char *pattern, const char *string, int flags)
while (c == '*')
c = *++pattern;
if (*string == '.' && (flags & FNM_PERIOD) &&
if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
/* Optimize for pattern with * at end or before /. */
if (c == EOS) {
if (c == EOS)
if (flags & FNM_PATHNAME)
return ((flags & FNM_LEADING_DIR) ||
strchr(string, '/') == NULL ?
0 : FNM_NOMATCH);
else
return (0);
} else if (c == '/' && (flags & FNM_PATHNAME)) {
else if (c == '/' && flags & FNM_PATHNAME) {
if ((string = strchr(string, '/')) == NULL)
return (FNM_NOMATCH);
break;
}
/* General case, use recursion. */
while ((test = *string) != EOS) {
if (!fnmatch(pattern, string, flags & ~FNM_PERIOD))
while (sc != EOS) {
if (!fnmatch1(pattern, string,
flags & ~FNM_PERIOD, patmbs, strmbs))
return (0);
if (test == '/' && (flags & FNM_PATHNAME))
sclen = mbrtowc(&sc, string, MB_LEN_MAX,
&strmbs);
if (sclen == (size_t)-1 ||
sclen == (size_t)-2) {
sc = (unsigned char)*string;
sclen = 1;
memset(&strmbs, 0, sizeof(strmbs));
}
if (sc == '/' && flags & FNM_PATHNAME)
break;
++string;
string += sclen;
}
return (FNM_NOMATCH);
case '[':
if (*string == EOS)
if (sc == EOS)
return (FNM_NOMATCH);
if (*string == '/' && (flags & FNM_PATHNAME))
if (sc == '/' && (flags & FNM_PATHNAME))
return (FNM_NOMATCH);
if (*string == '.' && (flags & FNM_PERIOD) &&
if (sc == '.' && (flags & FNM_PERIOD) &&
(string == stringstart ||
((flags & FNM_PATHNAME) && *(string - 1) == '/')))
return (FNM_NOMATCH);
switch (rangematch(pattern, *string, flags, &newp)) {
switch (rangematch(pattern, sc, flags, &newp,
&patmbs)) {
case RANGE_ERROR:
/* not a good range, treat as normal text */
goto normal;
goto norm;
case RANGE_MATCH:
pattern = newp;
break;
case RANGE_NOMATCH:
return (FNM_NOMATCH);
}
++string;
string += sclen;
break;
case '\\':
if (!(flags & FNM_NOESCAPE)) {
if ((c = *pattern++) == EOS) {
c = '\\';
--pattern;
}
pclen = mbrtowc(&pc, pattern, MB_LEN_MAX,
&patmbs);
if (pclen == (size_t)-1 || pclen == (size_t)-2)
return (FNM_NOMATCH);
if (pclen == 0)
pc = '\\';
pattern += pclen;
}
/* FALLTHROUGH */
default:
normal:
if (c != *string && !((flags & FNM_CASEFOLD) &&
(tolower((unsigned char)c) ==
tolower((unsigned char)*string))))
norm:
if (pc == sc)
;
else if ((flags & FNM_CASEFOLD) &&
(towlower(pc) == towlower(sc)))
;
else
return (FNM_NOMATCH);
++string;
string += sclen;
break;
}
}
/* NOTREACHED */
}
static int
rangematch(const char *pattern, char test, int flags, char **newp)
rangematch(pattern, test, flags, newp, patmbs)
const char *pattern;
wchar_t test;
int flags;
char **newp;
mbstate_t *patmbs;
{
int negate, ok;
char c, c2;
wchar_t c, c2;
size_t pclen;
const char *origpat;
/*
* A bracket expression starting with an unquoted circumflex
@ -174,11 +232,11 @@ rangematch(const char *pattern, char test, int flags, char **newp)
* consistency with the regular expression syntax.
* J.T. Conklin (conklin@ngai.kaleida.com)
*/
if ((negate = (*pattern == '!' || *pattern == '^')))
if ( (negate = (*pattern == '!' || *pattern == '^')) )
++pattern;
if (flags & FNM_CASEFOLD)
test = tolower((unsigned char)test);
test = towlower(test);
/*
* A right bracket shall lose its special meaning and represent
@ -186,30 +244,49 @@ rangematch(const char *pattern, char test, int flags, char **newp)
* -- POSIX.2 2.8.3.2
*/
ok = 0;
c = *pattern++;
do {
if (c == '\\' && !(flags & FNM_NOESCAPE))
c = *pattern++;
if (c == EOS)
origpat = pattern;
for (;;) {
if (*pattern == ']' && pattern > origpat) {
pattern++;
break;
} else if (*pattern == '\0') {
return (RANGE_ERROR);
if (c == '/' && (flags & FNM_PATHNAME))
} else if (*pattern == '/' && (flags & FNM_PATHNAME)) {
return (RANGE_NOMATCH);
if ((flags & FNM_CASEFOLD))
c = tolower((unsigned char)c);
if (*pattern == '-'
&& (c2 = *(pattern+1)) != EOS && c2 != ']') {
pattern += 2;
if (c2 == '\\' && !(flags & FNM_NOESCAPE))
c2 = *pattern++;
} else if (*pattern == '\\' && !(flags & FNM_NOESCAPE))
pattern++;
pclen = mbrtowc(&c, pattern, MB_LEN_MAX, patmbs);
if (pclen == (size_t)-1 || pclen == (size_t)-2)
return (RANGE_NOMATCH);
pattern += pclen;
if (flags & FNM_CASEFOLD)
c = towlower(c);
if (*pattern == '-' && *(pattern + 1) != EOS &&
*(pattern + 1) != ']') {
if (*++pattern == '\\' && !(flags & FNM_NOESCAPE))
if (*pattern != EOS)
pattern++;
pclen = mbrtowc(&c2, pattern, MB_LEN_MAX, patmbs);
if (pclen == (size_t)-1 || pclen == (size_t)-2)
return (RANGE_NOMATCH);
pattern += pclen;
if (c2 == EOS)
return (RANGE_ERROR);
if (flags & FNM_CASEFOLD)
c2 = tolower((unsigned char)c2);
if (c <= test && test <= c2)
c2 = towlower(c2);
if (__collate_load_error ?
c <= test && test <= c2 :
__collate_range_cmp(c, test) <= 0
&& __collate_range_cmp(test, c2) <= 0
)
ok = 1;
} else if (c == test)
ok = 1;
} while ((c = *pattern++) != ']');
}
*newp = (char *)pattern;
return (ok == negate ? RANGE_NOMATCH : RANGE_MATCH);