[Asterisk-code-review] rtp engine: Failed assertion and wrong name given for codec (asterisk[14])

[Kevin Harwell]

Kevin Harwell has uploaded a new change for review.

  https://gerrit.asterisk.org/3361

Change subject: rtp_engine: Failed assertion and wrong name given for codec
......................................................................

rtp_engine: Failed assertion and wrong name given for codec

Fixed an assert check that would trigger when the passed in value was negative.
The negative value was being cast to an unsigned value. This resulted in the
check failing.

Also fixed another problem when loading formats in the engine. When setting the
mime type the format's name was being passed in instead of the codec's name.

Change-Id: I1a201cd419ba4d8e9a40d337e36b6fbe1737192c
---
M main/rtp_engine.c
1 file changed, 8 insertions(+), 6 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/61/3361/1

diff --git a/main/rtp_engine.c b/main/rtp_engine.c
index feadda3..66b80e5 100644
--- a/main/rtp_engine.c
+++ b/main/rtp_engine.c
@@ -983,6 +983,7 @@
 		} else {
 			new_type->format = t->payload_type.format;
 		}
+
 		if (new_type->format) {
 			/* SDP parsing automatically increases the reference count */
 			new_type->format = ast_format_parse_sdp_fmtp(new_type->format, "");
@@ -2257,7 +2258,11 @@
 	int x;
 	struct ast_rtp_payload_type *type;
 
-	ast_assert(map < ARRAY_LEN(static_RTP_PT));
+	/*
+	 * ARRAY_LEN's result is cast to an int so 'map' is not autocast to a size_t,
+	 * which if negative would cause an assertion.
+	 */
+	ast_assert(map < (int)ARRAY_LEN(static_RTP_PT));
 
 	ast_rwlock_wrlock(&static_RTP_PT_lock);
 	if (map < 0) {
@@ -2268,6 +2273,7 @@
 				break;
 			}
 		}
+
 		if (map < 0) {
 			if (format) {
 				ast_log(LOG_WARNING, "No Dynamic RTP mapping available for format %s\n",
@@ -2300,14 +2306,10 @@
 
 int ast_rtp_engine_load_format(struct ast_format *format)
 {
-	char *codec_name = ast_strdupa(ast_format_get_name(format));
-
-	codec_name = ast_str_to_upper(codec_name);
-
 	set_next_mime_type(format,
 		0,
 		ast_codec_media_type2str(ast_format_get_type(format)),
-		codec_name,
+		ast_format_get_codec_name(format),
 		ast_format_get_sample_rate(format));
 	add_static_payload(-1, format, 0);
 

-- 
To view, visit https://gerrit.asterisk.org/3361
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1a201cd419ba4d8e9a40d337e36b6fbe1737192c
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: 14
Gerrit-Owner: Kevin Harwell <kharwell at digium.com>