[sr-dev] git:4.2:7cb9428e: tmx: check for empty result not to allocate 0 bytes

Module: kamailio Branch: 4.2 Commit: 7cb9428ec3785e42b95eb2cc30cb4ac8503e760d URL: https://github.com/kamailio/kamailio/commit/7cb9428ec3785e42b95eb2cc30cb4ac… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2015-05-19T09:29:59+02:00 tmx: check for empty result not to allocate 0 bytes - allocation of 0 size is undefined when using system malloc (cherry picked from commit 0db313f0047fc512dec2976cac168989b60d49c8) --- Modified: modules/tmx/t_mi.c --- Diff: https://github.com/kamailio/kamailio/commit/7cb9428ec3785e42b95eb2cc30cb4ac… Patch: https://github.com/kamailio/kamailio/commit/7cb9428ec3785e42b95eb2cc30cb4ac… --- diff --git a/modules/tmx/t_mi.c b/modules/tmx/t_mi.c index 97123f7..e3bff25 100644 --- a/modules/tmx/t_mi.c +++ b/modules/tmx/t_mi.c @@ -233,6 +233,10 @@ static inline char *get_hfblock( str *uri, struct hdr_field *hf, int *l, struct LM_DBG("one more hf processed\n"); } /* header loop */ + if(total_len==0) { + LM_DBG("empty result\n"); + goto error; + } /* construct a single header block now */ ret=pkg_malloc(total_len);