fix seg fault condition

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3409 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_h323.c b/channels/chan_h323.c
index 45398ff..63030d6 100755 (executable)
--- a/channels/chan_h323.c
+++ b/channels/chan_h323.c
@@ -862,7 +862,7 @@ static struct ast_channel *oh323_request(char *type, int format, void *data)
 
        strtok_r(host, "/", &(h323id));
                
-       if (*h323id) {
+       if (h323id && !ast_strlen_zero(h323id)) {
                h323_set_id(h323id);
        }
                
@@ -877,10 +877,11 @@ static struct ast_channel *oh323_request(char *type, int format, void *data)
        p->capability = capability;
        
        if (p->dtmfmode) {
-               if (p->dtmfmode & H323_DTMF_RFC2833)
+               if (p->dtmfmode & H323_DTMF_RFC2833) {
                        p->nonCodecCapability |= AST_RTP_DTMF;
-               else
+               } else {
                        p->nonCodecCapability &= ~AST_RTP_DTMF;
+               }
        }
        /* pass on our preferred codec to the H.323 stack */
        h323_set_capability(format, dtmfmode);