svn commit: r322368 - head/lib/libc/gen
Pedro F. Giffuni
pfg at FreeBSD.org
Thu Aug 10 15:42:27 UTC 2017
Author: pfg
Date: Thu Aug 10 15:42:25 2017
New Revision: 322368
URL: https://svnweb.freebsd.org/changeset/base/322368
Log:
fnmatch(3): improve POSIX conformance.
In a recent interpretation[1], "\\" shall return a non-zero value
(indicating either no match or an error).
The fix involves a change over r254091 and now the behavior matches the
Sun/IBM/HP closed source implementations and also likely musl libc.
Submitted by: Joerg Schilling <joerg at schily.net>
MFC after: 1 week
[1] http://austingroupbugs.net/view.php?id=806
Modified:
head/lib/libc/gen/fnmatch.c
Modified: head/lib/libc/gen/fnmatch.c
==============================================================================
--- head/lib/libc/gen/fnmatch.c Thu Aug 10 15:34:50 2017 (r322367)
+++ head/lib/libc/gen/fnmatch.c Thu Aug 10 15:42:25 2017 (r322368)
@@ -184,7 +184,8 @@ fnmatch1(const char *pattern, const char *string, cons
if (!(flags & FNM_NOESCAPE)) {
pclen = mbrtowc(&pc, pattern, MB_LEN_MAX,
&patmbs);
- if (pclen == (size_t)-1 || pclen == (size_t)-2)
+ if (pclen == 0 || pclen == (size_t)-1 ||
+ pclen == (size_t)-2)
return (FNM_NOMATCH);
pattern += pclen;
}
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