Changeset 5740 for pjproject

Timestamp:

Feb 21, 2018 2:28:02 AM (7 years ago)

Author:

ming

Message:

Fixed #2092: Crash when receiving SDP with invalid fmtp attribute

File:

• pjproject/trunk/pjmedia/src/pjmedia/sdp.c (modified) (3 diffs)

pjproject/trunk/pjmedia/src/pjmedia/sdp.c

@@ -257 +257 @@
     PJ_ASSERT_RETURN(pj_strcmp2(&attr->name, "rtpmap")==0, PJ_EINVALIDOP);
 
-    PJ_ASSERT_RETURN(attr->value.slen != 0, PJMEDIA_SDP_EINATTR);
+    if (attr->value.slen == 0)
+        return PJMEDIA_SDP_EINATTR;
 
     init_sdp_parser();
@@ -345 +346 @@
     PJ_ASSERT_RETURN(pj_strcmp2(&attr->name, "fmtp")==0, PJ_EINVALIDOP);
 
+    if (attr->value.slen == 0)
+        return PJMEDIA_SDP_EINATTR;
+
     /* fmtp BNF:
      *  a=fmtp:<format> <format specific parameter>
@@ -382 +386 @@
 
     PJ_ASSERT_RETURN(pj_strcmp2(&attr->name, "rtcp")==0, PJ_EINVALIDOP);
+
+    if (attr->value.slen == 0)
+        return PJMEDIA_SDP_EINATTR;
 
     init_sdp_parser();