From 4886383e32fd4238d6e17bd52f19c67c96a6a526 Mon Sep 17 00:00:00 2001
From: prabhugithubme <100773071+prabhugithubme@users.noreply.github.com>
Date: Thu, 7 Apr 2022 17:52:25 +0530
Subject: [PATCH] [Core] Fix switch_core_media_patch_sdp parsing m=text wrongly

---
 src/switch_core_media.c | 42 ++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/src/switch_core_media.c b/src/switch_core_media.c
index fea9bcc4d7..e27b81e166 100644
--- a/src/switch_core_media.c
+++ b/src/switch_core_media.c
@@ -12207,7 +12207,7 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 				char o_line[1024] = "";
 
 				if (oe >= pe) {
-					bad = 5;
+					bad = 4;
 					goto end;
 				}
 
@@ -12263,7 +12263,7 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			p += 8;
 
 			if (p >= pe) {
-				bad = 4;
+				bad = 6;
 				goto end;
 			}
 
@@ -12271,7 +12271,7 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			q += 8;
 
 			if (q >= qe) {
-				bad = 5;
+				bad = 7;
 				goto end;
 			}
 
@@ -12280,13 +12280,13 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			q += strlen(port_buf);
 
 			if (q >= qe) {
-				bad = 6;
+				bad = 8;
 				goto end;
 			}
 
 			while (p && *p && (*p >= '0' && *p <= '9')) {
 				if (p >= pe) {
-					bad = 7;
+					bad = 9;
 					goto end;
 				}
 				p++;
@@ -12327,14 +12327,14 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			p += 8;
 
 			if (p >= pe) {
-				bad = 8;
+				bad = 10;
 				goto end;
 			}
 
 			q += 8;
 
 			if (q >= qe) {
-				bad = 9;
+				bad = 11;
 				goto end;
 			}
 
@@ -12342,14 +12342,14 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			q += strlen(vport_buf);
 
 			if (q >= qe) {
-				bad = 10;
+				bad = 12;
 				goto end;
 			}
 
 			while (p && *p && (*p >= '0' && *p <= '9')) {
 
 				if (p >= pe) {
-					bad = 11;
+					bad = 13;
 					goto end;
 				}
 
@@ -12357,7 +12357,7 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			}
 
 			has_video++;
-		} else if (!strncmp("m=text ", p, 8) && *(p + 8) != '0') {
+		} else if (!strncmp("m=text ", p, 7) && *(p + 7) != '0') {
 			if (!has_text) {
 				switch_core_media_choose_port(session, SWITCH_MEDIA_TYPE_TEXT, 1);
 				clear_pmaps(t_engine);
@@ -12386,18 +12386,18 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 				//TEXT switch_core_media_set_text_codec(session, SWITCH_FALSE);
 			}
 
-			strncpy(q, p, 8);
-			p += 8;
+			strncpy(q, p, 7);
+			p += 7;
 
 			if (p >= pe) {
-				bad = 8;
+				bad = 14;
 				goto end;
 			}
 
-			q += 8;
+			q += 7;
 
 			if (q >= qe) {
-				bad = 9;
+				bad = 15;
 				goto end;
 			}
 
@@ -12405,14 +12405,14 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 			q += strlen(tport_buf);
 
 			if (q >= qe) {
-				bad = 10;
+				bad = 16;
 				goto end;
 			}
 
 			while (p && *p && (*p >= '0' && *p <= '9')) {
 
 				if (p >= pe) {
-					bad = 11;
+					bad = 17;
 					goto end;
 				}
 
@@ -12426,12 +12426,12 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 		while (p && *p && *p != '\n') {
 
 			if (p >= pe) {
-				bad = 12;
+				bad = 18;
 				goto end;
 			}
 
 			if (q >= qe) {
-				bad = 13;
+				bad = 19;
 				goto end;
 			}
 
@@ -12439,12 +12439,12 @@ SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session)
 		}
 
 		if (p >= pe) {
-			bad = 14;
+			bad = 20;
 			goto end;
 		}
 
 		if (q >= qe) {
-			bad = 15;
+			bad = 21;
 			goto end;
 		}