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authorjilles <jilles@FreeBSD.org>2011-04-05 21:56:05 +0000
committerjilles <jilles@FreeBSD.org>2011-04-05 21:56:05 +0000
commitc902a38c4a1577f5b9a27832540f1a955ea78038 (patch)
tree9ba493ad554e8b08e9a294a55e6d6e571583a3e2 /lib/libc/string/strerror.c
parentbb9f2459b8a1d6a5aca6101af345c3ed3ccabc83 (diff)
downloadFreeBSD-src-c902a38c4a1577f5b9a27832540f1a955ea78038.zip
FreeBSD-src-c902a38c4a1577f5b9a27832540f1a955ea78038.tar.gz
Allow strerror(0) and strerror_r(0, ...).
Of course, strerror_r() may still fail with ERANGE. Although the POSIX specification said this could fail with EINVAL and doing this likely indicates invalid use of errno, most other implementations permitted it, various POSIX testsuites require it to work (matching the older sys_errlist array) and apparently some applications depend on it. PR: standards/151316 MFC after: 1 week
Diffstat (limited to 'lib/libc/string/strerror.c')
-rw-r--r--lib/libc/string/strerror.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c
index 890ed21..57d253d 100644
--- a/lib/libc/string/strerror.c
+++ b/lib/libc/string/strerror.c
@@ -87,7 +87,7 @@ strerror_r(int errnum, char *strerrbuf, size_t buflen)
catd = catopen("libc", NL_CAT_LOCALE);
#endif
- if (errnum < 1 || errnum >= sys_nerr) {
+ if (errnum < 0 || errnum >= sys_nerr) {
errstr(errnum,
#if defined(NLS)
catgets(catd, 1, 0xffff, UPREFIX),
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