[asterisk-commits] mjordan: branch 13 r431879 - /branches/13/res/res_rtp_asterisk.c

[SVN commits to the Asterisk project]

Author: mjordan
Date: Mon Feb 16 15:29:23 2015
New Revision: 431879

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=431879
Log:
res/res_rtp_asterisk: Fix crash in debug from RTCP reports without report block

When RTCP debugging was enabled, an RTCP report without a report block would
cause a crash. This was due to the verbose output not checking to see if the
report_block pointer was NULl before dereferencing it.

This patch adds the necessary check to prevent printing any verbose output
if the far side hasn't provided us the information they should have.

ASTERISK-24791 #close
Reported by: JoshE
Tested by: JoshE

Modified:
    branches/13/res/res_rtp_asterisk.c

Modified: branches/13/res/res_rtp_asterisk.c
URL: http://svnview.digium.com/svn/asterisk/branches/13/res/res_rtp_asterisk.c?view=diff&rev=431879&r1=431878&r2=431879
==============================================================================
--- branches/13/res/res_rtp_asterisk.c (original)
+++ branches/13/res/res_rtp_asterisk.c Mon Feb 16 15:29:23 2015
@@ -3056,14 +3056,16 @@
 			ast_verbose("  Sent packets: %u\n", rtcp_report->sender_information.packet_count);
 			ast_verbose("  Sent octets: %u\n", rtcp_report->sender_information.octet_count);
 		}
-		ast_verbose("  Report block:\n");
-		ast_verbose("    Their SSRC: %u\n", report_block->source_ssrc);
-		ast_verbose("    Fraction lost: %d\n", report_block->lost_count.fraction);
-		ast_verbose("    Cumulative loss: %u\n", report_block->lost_count.packets);
-		ast_verbose("    Highest seq no: %u\n", report_block->highest_seq_no);
-		ast_verbose("    IA jitter: %.4f\n", (double)report_block->ia_jitter / rate);
-		ast_verbose("    Their last SR: %u\n", report_block->lsr);
-		ast_verbose("    DLSR: %4.4f (sec)\n\n", (double)(report_block->dlsr / 65536.0));
+		if (report_block) {
+			ast_verbose("  Report block:\n");
+			ast_verbose("    Their SSRC: %u\n", report_block->source_ssrc);
+			ast_verbose("    Fraction lost: %d\n", report_block->lost_count.fraction);
+			ast_verbose("    Cumulative loss: %u\n", report_block->lost_count.packets);
+			ast_verbose("    Highest seq no: %u\n", report_block->highest_seq_no);
+			ast_verbose("    IA jitter: %.4f\n", (double)report_block->ia_jitter / rate);
+			ast_verbose("    Their last SR: %u\n", report_block->lsr);
+			ast_verbose("    DLSR: %4.4f (sec)\n\n", (double)(report_block->dlsr / 65536.0));
+		}
 	}
 
 	ast_rtp_instance_get_local_address(instance, &local_address);