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| author | Ulrich Drepper <drepper@redhat.com> | 2007-04-23 15:15:53 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-04-23 15:15:53 +0000 |
| commit | a15ccd8f07d7afbbd7635f350e318ede84709ac6 (patch) | |
| tree | 177281f275d54ff4e75078597a5eaee7d0ef9cb3 | |
| parent | b64a9db89be6be873d8e096e7f83833cc3925177 (diff) | |
| download | glibc-a15ccd8f07d7afbbd7635f350e318ede84709ac6.tar.gz glibc-a15ccd8f07d7afbbd7635f350e318ede84709ac6.tar.xz glibc-a15ccd8f07d7afbbd7635f350e318ede84709ac6.zip | |
(HOST_DB_LOOKUP): Ensure sufficient alignment of buffer and tmp_buffer.
| -rw-r--r-- | nss/nss_files/files-hosts.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c index 6daafdeeed..7b7aadeaab 100644 --- a/nss/nss_files/files-hosts.c +++ b/nss/nss_files/files-hosts.c @@ -1,5 +1,6 @@ /* Hosts file parser in nss_files module. - Copyright (C) 1996-2001, 2003, 2004, 2006 Free Software Foundation, Inc. + Copyright (C) 1996-2001, 2003, 2004, 2006, 2007 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -102,6 +103,10 @@ _nss_files_get##name##_r (proto, \ { \ enum nss_status status; \ \ + uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct hostent_data); \ + buffer += pad; \ + buflen = buflen > pad ? buflen - pad : 0; \ + \ __libc_lock_lock (lock); \ \ /* Reset file pointer to beginning or open file. */ \ @@ -122,7 +127,8 @@ _nss_files_get##name##_r (proto, \ { \ /* We have to get all host entries from the file. */ \ const size_t tmp_buflen = MIN (buflen, 4096); \ - char tmp_buffer[tmp_buflen]; \ + char tmp_buffer[tmp_buflen] \ + __attribute__ ((__aligned__ (__alignof__ (struct hostent_data))));\ struct hostent tmp_result_buf; \ int naddrs = 1; \ int naliases = 0; \ |