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| author | Jakub Jelinek <jakub@redhat.com> | 2009-05-15 21:17:08 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-05-15 21:17:08 -0700 |
| commit | cfe1fc1013d0e7e4863c974fa0e78891cc0a2ed2 (patch) | |
| tree | 77134fa880e4dd6db41a701034607e67a4dd9be1 /nscd/nscd-client.h | |
| parent | 3b1b533bc3239ef6df1e40e0088e7270ac060be6 (diff) | |
| download | glibc-cfe1fc1013d0e7e4863c974fa0e78891cc0a2ed2.tar.gz glibc-cfe1fc1013d0e7e4863c974fa0e78891cc0a2ed2.tar.xz glibc-cfe1fc1013d0e7e4863c974fa0e78891cc0a2ed2.zip | |
Robustify libc-side nscd database reader.
The nscd database mapped in processes can change at any time. We have to be more vigilant when it comes to using that memory. Test the data entries are valid in their entire size, don't read data again from memory once we verified it, and make sure the trailing pointer is not going off the deep end.
Diffstat (limited to 'nscd/nscd-client.h')
| -rw-r--r-- | nscd/nscd-client.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/nscd/nscd-client.h b/nscd/nscd-client.h index 3c9688fd30..f66a658d2a 100644 --- a/nscd/nscd-client.h +++ b/nscd/nscd-client.h @@ -1,4 +1,4 @@ -/* Copyright (c) 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007 +/* Copyright (c) 1998, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998. @@ -329,7 +329,8 @@ static inline int __nscd_drop_map_ref (struct mapped_database *map, extern struct datahead *__nscd_cache_search (request_type type, const char *key, size_t keylen, - const struct mapped_database *mapped); + const struct mapped_database *mapped, + size_t datalen); /* Wrappers around read, readv and write that only read/write less than LEN bytes on error or EOF. */ |