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| author | Ulrich Drepper <drepper@redhat.com> | 2006-05-24 04:07:18 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-05-24 04:07:18 +0000 |
| commit | 2d571cd1258ab7c20a49e802e31870041dc10a56 (patch) | |
| tree | b211f02b858e06c3efe20a7708fe162c9df3d33c /nis/nis_domain_of_r.c | |
| parent | a17fa6100dd400cd0c64aab1803c2047c95bfd5b (diff) | |
| download | glibc-2d571cd1258ab7c20a49e802e31870041dc10a56.tar glibc-2d571cd1258ab7c20a49e802e31870041dc10a56.tar.gz glibc-2d571cd1258ab7c20a49e802e31870041dc10a56.tar.bz2 glibc-2d571cd1258ab7c20a49e802e31870041dc10a56.zip | |
* nis/nis_domain_of_r.c (nis_domain_of_r): Add missing buffer
overflow test.
Diffstat (limited to 'nis/nis_domain_of_r.c')
| -rw-r--r-- | nis/nis_domain_of_r.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nis/nis_domain_of_r.c b/nis/nis_domain_of_r.c index 1fedcfe074..e2db146038 100644 --- a/nis/nis_domain_of_r.c +++ b/nis/nis_domain_of_r.c @@ -1,4 +1,4 @@ -/* Copyright (c) 1997, 2004 Free Software Foundation, Inc. +/* Copyright (c) 1997, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -29,6 +29,7 @@ nis_domain_of_r (const_nis_name name, char *buffer, size_t buflen) if (buffer == NULL) { + erange: __set_errno (ERANGE); return NULL; } @@ -44,7 +45,11 @@ nis_domain_of_r (const_nis_name name, char *buffer, size_t buflen) cptr_len = strlen (cptr); if (cptr_len == 0) - return strcpy (buffer, "."); + { + if (buflen < 2) + goto erange; + return strcpy (buffer, "."); + } if (__builtin_expect (cptr_len >= buflen, 0)) { |