shithub: rtmp

Info  •  Files  •  Log  •  Branches

loop: validate (and debug print) chunk size

--- a/rtmp.c

+++ b/rtmp.c

@@ -485,6 +485,12 @@

 		case PktChunkSz:

 			if(amfi32get(r->pk.data, r->pk.data+r->pk.sz, &r->chunk) == nil)

 				goto err;

+			if(r->chunk < 2){

+				werrstr("invalid chunk size: %d", r->chunk);

+				goto err;

+			}

+			if(debug)

+				fprint(2, "new chunk size: %d bytes\n", r->chunk);

 			break;

 		case PktBytesReadReport:

 		case PktControl: