diff options
| author | Andreas Schwab <schwab@suse.de> | 2012-12-04 16:14:13 +0100 |
|---|---|---|
| committer | Andreas Schwab <schwab@suse.de> | 2013-01-10 09:59:58 +0100 |
| commit | dd31ac7a8e0d4cc24eee6815f9101caa5aa64291 (patch) | |
| tree | 084cc65c5b744f23cada0fae9bfd4c0c1cbb3ca3 /nscd/pwdcache.c | |
| parent | 3167bfc62bb38e3057f7694566b5bb157236a5a8 (diff) | |
Properly check for short writes when sending the response in nscd
* nscd/grpcache.c (cache_addgr): Properly check for short write.
* nscd/initgrcache.c (addinitgroupsX): Likewise.
* nscd/pwdcache.c (cache_addpw): Likewise.
* nscd/servicescache.c (cache_addserv): Likewise. Don't write
more than recsize.
Diffstat (limited to 'nscd/pwdcache.c')
| -rw-r--r-- | nscd/pwdcache.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c index ef492b58c1..bfc183150d 100644 --- a/nscd/pwdcache.c +++ b/nscd/pwdcache.c @@ -81,6 +81,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req, const void *key, struct passwd *pwd, uid_t owner, struct hashentry *const he, struct datahead *dh, int errval) { + bool all_written = true; ssize_t total; ssize_t written; time_t t = time (NULL); @@ -306,7 +307,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req, + db->head->data_size)); written = sendfileall (fd, db->wr_fd, (char *) &dataset->resp - - (char *) db->head, dataset->head.recsize ); + - (char *) db->head, dataset->head.recsize); # ifndef __ASSUME_SENDFILE if (written == -1 && errno == ENOSYS) goto use_write; @@ -318,6 +319,9 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req, # endif #endif written = writeall (fd, &dataset->resp, dataset->head.recsize); + + if (written != dataset->head.recsize) + all_written = false; } @@ -377,7 +381,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req, } } - if (__builtin_expect (written != total, 0) && debug_level > 0) + if (__builtin_expect (!all_written, 0) && debug_level > 0) { char buf[256]; dbg_log (_("short write in %s: %s"), __FUNCTION__, |