fix the return value of gettag() to only return the pointer to the provided

tag buffer if the tag was actually found.  There is code that checks to see
if this result is non-zero to determine whether the tag was found or not.
(issue #7092, mikma)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@25060 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 2d7c6cd0d2fe2431d3c06e7c06d5e6dd80124a94..c13d9a9ce0566d8ec994d20c04e6d9a1c824edd0 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -10795,8 +10795,9 @@ static const char *gettag(const struct sip_request *req, char *header, char *tag
                sep = strchr(tagbuf, ';');
                if (sep)
                        *sep = '\0';
+               return tagbuf;
        }
-       return tagbuf;
+       return NULL;
 }
 
 /*! \brief Handle incoming notifications */