From dd31ac7a8e0d4cc24eee6815f9101caa5aa64291 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Tue, 4 Dec 2012 16:14:13 +0100 Subject: 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. --- nscd/initgrcache.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'nscd/initgrcache.c') diff --git a/nscd/initgrcache.c b/nscd/initgrcache.c index 196407c870..94b279d559 100644 --- a/nscd/initgrcache.c +++ b/nscd/initgrcache.c @@ -171,10 +171,12 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req, nip = nip->next; } + bool all_written; ssize_t total; ssize_t written; time_t timeout; out: + all_written = true; timeout = MAX_TIMEOUT_VALUE; if (!any_success) { @@ -379,6 +381,9 @@ addinitgroupsX (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; } @@ -405,7 +410,7 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req, free (groups); - 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__, -- cgit v1.2.3