Merged revisions 59357 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r59357 | russell | 2007-03-29 12:14:33 -0500 (Thu, 29 Mar 2007) | 5 lines

If an error occurs when reading from an RTP socket, and the error code does not
indicate that we should try again, then return NULL instead of a "null frame".
This will prevent Asterisk from trying over and over again, and eventually
causing the system to crash.  (issue #8285, john)

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@59358 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/rtp.c

@@ -850,10 +850,12 @@ struct ast_frame *ast_rtcp_read(struct ast_rtp *rtp)
 	rtcpheader = (unsigned int *)(rtcpdata + AST_FRIENDLY_OFFSET);
 	
 	if (res < 0) {
-		if (errno != EAGAIN)
-			ast_log(LOG_WARNING, "RTCP Read error: %s\n", strerror(errno));
 		if (errno == EBADF)
 			CRASH;
+		if (errno != EAGAIN) {
+			ast_log(LOG_WARNING, "RTCP Read error: %s.  Hanging up.\n", strerror(errno));
+			return NULL;
+		}
 		return &ast_null_frame;
 	}
 
@@ -1105,10 +1107,12 @@ struct ast_frame *ast_rtp_read(struct ast_rtp *rtp)
 
 	rtpheader = (unsigned int *)(rtp->rawdata + AST_FRIENDLY_OFFSET);
 	if (res < 0) {
-		if (errno != EAGAIN)
-			ast_log(LOG_WARNING, "RTP Read error: %s\n", strerror(errno));
 		if (errno == EBADF)
 			CRASH;
+		if (errno != EAGAIN) {
+			ast_log(LOG_WARNING, "RTP Read error: %s.  Hanging up.\n", strerror(errno));
+			return NULL;
+		}
 		return &ast_null_frame;
 	}