[Asterisk-cvs] asterisk/channels chan_mgcp.c,1.79.2.12,1.79.2.13

russell at lists.digium.com russell at lists.digium.com
Wed May 11 22:16:56 CDT 2005


Update of /usr/cvsroot/asterisk/channels
In directory mongoose.digium.com:/tmp/cvs-serv13699/channels

Modified Files:
      Tag: v1-0
	chan_mgcp.c 
Log Message:
use ast_strlen_zero, also fix a codec config parsing error (bug #4169)


Index: chan_mgcp.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_mgcp.c,v
retrieving revision 1.79.2.12
retrieving revision 1.79.2.13
diff -u -d -r1.79.2.12 -r1.79.2.13
--- chan_mgcp.c	6 Apr 2005 16:39:45 -0000	1.79.2.12
+++ chan_mgcp.c	12 May 2005 02:22:56 -0000	1.79.2.13
@@ -471,7 +471,7 @@
 	ast_log(LOG_DEBUG, "Released sub %d of channel %s@%s\n", sub->id, p->name, p->parent->name);
 
 	sub->owner = NULL;
-	if (strlen(sub->cxident)) {
+	if (!ast_strlen_zero(sub->cxident)) {
 		transmit_connection_del(sub);
     }
     sub->cxident[0] = '\0';
@@ -833,7 +833,7 @@
             transmit_modify_request(sub);
         }
 
-        if (sub->next->owner && strlen(sub->next->cxident) && strlen(sub->next->callid)) {
+        if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) {
             /* try to prevent a callwait from disturbing the other connection */
             sub->next->cxmode = MGCP_CX_RECVONLY;
             transmit_modify_request(sub->next);
@@ -843,7 +843,7 @@
 		ast_setstate(ast, AST_STATE_RINGING);
 		ast_queue_control(ast, AST_CONTROL_RINGING);
 
-        if (sub->next->owner && strlen(sub->next->cxident) && strlen(sub->next->callid)) {
+        if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) {
             /* Put the connection back in sendrecv */
             sub->next->cxmode = MGCP_CX_SENDRECV;
             transmit_modify_request(sub->next);
@@ -889,7 +889,7 @@
     }
 
 	sub->owner = NULL;
-	if (strlen(sub->cxident)) {
+	if (!ast_strlen_zero(sub->cxident)) {
 		transmit_connection_del(sub);
     }
 	 sub->cxident[0] = '\0';
@@ -1273,9 +1273,9 @@
 		tmp->pvt->fixup = mgcp_fixup;
 		tmp->pvt->send_digit = mgcp_senddigit;
 		tmp->pvt->bridge = ast_rtp_bridge;
-		if (strlen(i->language))
+		if (!ast_strlen_zero(i->language))
 			strncpy(tmp->language, i->language, sizeof(tmp->language)-1);
-		if (strlen(i->accountcode))
+		if (!ast_strlen_zero(i->accountcode))
 			strncpy(tmp->accountcode, i->accountcode, sizeof(tmp->accountcode)-1);
 		if (i->amaflags)
 			tmp->amaflags = i->amaflags;
@@ -1530,7 +1530,7 @@
 #if 0
 			printf("Header: %s (%d)\n", req->header[f], strlen(req->header[f]));
 #endif			
-			if (!strlen(req->header[f])) {
+			if (ast_strlen_zero(req->header[f])) {
 				/* Line by itself means we're now in content */
 				c++;
 				break;
@@ -1547,7 +1547,7 @@
 		c++;
 	}
 	/* Check for last header */
-	if (strlen(req->header[f])) 
+	if (!ast_strlen_zero(req->header[f])) 
 		f++;
 	req->headers = f;
 	/* Now we process any mime content */
@@ -1572,7 +1572,7 @@
 		c++;
 	}
 	/* Check for last line */
-	if (strlen(req->line[f])) 
+	if (!ast_strlen_zero(req->line[f])) 
 		f++;
 	req->lines = f;
 	/* Parse up the initial header */
@@ -1627,14 +1627,14 @@
 	struct sockaddr_in sin;
 	char *codecs;
 	struct ast_hostent ahp; struct hostent *hp;
-	int codec;
+	int codec, codec_count = 0;	
 	int iterator;
-    struct mgcp_endpoint *p = sub->parent;
+	struct mgcp_endpoint *p = sub->parent;
 
 	/* Get codec and RTP info from SDP */
 	m = get_sdp(req, "m");
 	c = get_sdp(req, "c");
-	if (!strlen(m) || !strlen(c)) {
+	if (ast_strlen_zero(m) || ast_strlen_zero(c)) {
 		ast_log(LOG_WARNING, "Insufficient information for SDP (m = '%s', c = '%s')\n", m, c);
 		return -1;
 	}
@@ -1660,14 +1660,16 @@
 	printf("Peer RTP is at port %s:%d\n", ast_inet_ntoa(iabuf, sizeof(iabuf), sin.sin_addr), ntohs(sin.sin_port));
 #endif	
 	/* Scan through the RTP payload types specified in a "m=" line: */
-    ast_rtp_pt_clear(sub->rtp);
-	codecs = m + len;
-	while(strlen(codecs)) {
-		if (sscanf(codecs, "%d %n", &codec, &len) != 1) {
-			ast_log(LOG_WARNING, "Error in codec string '%s'\n", codecs);
+	ast_rtp_pt_clear(sub->rtp);
+	codecs = ast_strdupa(m + len);
+	while (codecs && !ast_strlen_zero(codecs)) {
+		if (sscanf(codecs, "%d%n", &codec, &len) != 1) {
+			if (codec_count)
+				break;	
 			return -1;
 		}
 		ast_rtp_set_m_type(sub->rtp, codec);
+		codec_count++;
 		codecs += len;
 	}
 
@@ -1926,7 +1928,7 @@
 	capability = p->capability;
 	if (codecs)
 		capability = codecs;
-	if (!strlen(sub->cxident) && rtp) {
+	if (ast_strlen_zero(sub->cxident) && rtp) {
 		/* We don't have a CXident yet, store the destination and
 		   wait a bit */
 		ast_rtp_get_peer(rtp, &sub->tmpdest);
@@ -2009,7 +2011,7 @@
             add_header(&resp, "R", (sub->rtp && (p->dtmfmode & MGCP_DTMF_INBAND)) ? "L/hu(N),L/hf(N)" : "L/hu(N),L/hf(N),D/[0-9#*](N)");
             break;
     }
-    if (strlen(tone)) {
+    if (!ast_strlen_zero(tone)) {
         add_header(&resp, "S", tone);
     }
     /* SC: fill in new fields */
@@ -2063,7 +2065,7 @@
             add_header(&resp, "R",  (sub->rtp && (p->dtmfmode & MGCP_DTMF_INBAND)) ? "L/hu(N),L/hf(N)" : "L/hu(N),L/hf(N),D/[0-9#*](N)");
             break;
     }
-    if (strlen(tone2)) {
+    if (!ast_strlen_zero(tone2)) {
         add_header(&resp, "S", tone2);
     }
     if (mgcpdebug) {
@@ -2079,8 +2081,8 @@
 static int transmit_modify_request(struct mgcp_subchannel *sub)
 {
 	struct mgcp_request resp;
-    struct mgcp_endpoint *p = sub->parent;
-	if (!strlen(sub->cxident)) {
+	struct mgcp_endpoint *p = sub->parent;
+	if (ast_strlen_zero(sub->cxident)) {
 		/* We don't have a CXident yet, store the destination and
 		   wait a bit */
 		return 0;
@@ -2304,10 +2306,10 @@
     if (resp) {
         if (req->cmd == MGCP_CMD_CRCX) {
             if ((c = get_header(resp, "I"))) {
-                if (strlen(c) && sub) {
+                if (!ast_strlen_zero(c) && sub) {
                     /* SC: if we are hanging up do not process this conn. */
                     if (sub->owner) {
-                        if (strlen(sub->cxident)) {
+                        if (!ast_strlen_zero(sub->cxident)) {
                             if (strcasecmp(c, sub->cxident)) {
                                 ast_log(LOG_WARNING, "Subchannel already has a cxident. sub->cxident: %s requested %s\n", sub->cxident, c);
                             }
@@ -2354,7 +2356,7 @@
 
             /* Try to determine the hookstate returned from an audit endpoint command */
             if ((c = get_header(resp, "ES"))) {
-                if (strlen(c)) {
+                if (!ast_strlen_zero(c)) {
                     if (strstr(c, "hu")) {
                         if (p->hookstate != MGCP_ONHOOK) {
                             /* SC: XXX cleanup if we think we are offhook XXX */
@@ -2559,7 +2561,7 @@
             timeout = firstdigittimeout;
         } else if (p->callreturn && !strcmp(exten, "*69")) {
             res = 0;
-            if (strlen(p->lastcallerid)) {
+            if (!ast_strlen_zero(p->lastcallerid)) {
                 res = ast_say_digit_str(chan, p->lastcallerid, "", chan->language);
             }
             if (!res)
@@ -2614,7 +2616,7 @@
                 ast_verbose(VERBOSE_PREFIX_3 "Parking call to '%s'\n", chan->name);
             }
             break;
-        } else if (strlen(p->lastcallerid) && !strcmp(exten, "*60")) {
+        } else if (!ast_strlen_zero(p->lastcallerid) && !strcmp(exten, "*60")) {
             if (option_verbose > 2) {
                 ast_verbose(VERBOSE_PREFIX_3 "Blacklisting number %s\n", p->lastcallerid);
             }
@@ -3161,7 +3163,7 @@
 		/* Must have at least one header */
 		return 1;
 	}
-	if (!req.identifier || !strlen(req.identifier)) {
+	if (!req.identifier || ast_strlen_zero(req.identifier)) {
 		ast_log(LOG_NOTICE, "Message from %s missing identifier\n", ast_inet_ntoa(iabuf, sizeof(iabuf), sin.sin_addr));
 		return 1;
 	}
@@ -3204,9 +3206,9 @@
                     gw->name, ident);
 		}
 	} else {
-		if (!req.endpoint || !strlen(req.endpoint) || 
-		    !req.version || !strlen(req.version) || 
-			!req.verb || !strlen(req.verb)) {
+		if (!req.endpoint || ast_strlen_zero(req.endpoint) || 
+		    !req.version || ast_strlen_zero(req.version) || 
+			!req.verb || ast_strlen_zero(req.verb)) {
 			ast_log(LOG_NOTICE, "Message must have a verb, an idenitifier, version, and endpoint\n");
 			return 1;
 		}
@@ -3360,7 +3362,7 @@
 		return NULL;
 	}
 	strncpy(tmp, dest, sizeof(tmp) - 1);
-	if (!strlen(tmp)) {
+	if (ast_strlen_zero(tmp)) {
 		ast_log(LOG_NOTICE, "MGCP Channels require an endpoint\n");
 		return NULL;
 	}
@@ -3378,7 +3380,7 @@
 	/* Must be busy */
 	if (((sub->parent->callwaiting) && ((sub->owner) && (sub->next->owner))) ||
         ((!sub->parent->callwaiting) && (sub->owner)) ||
-         (sub->parent->dnd && (!strlen(sub->parent->call_forward)))) {
+         (sub->parent->dnd && (ast_strlen_zero(sub->parent->call_forward)))) {
          if (sub->parent->hookstate == MGCP_ONHOOK) {
              if (has_voicemail(sub->parent)) {
                  transmit_notify_request(sub,"L/vmwi(+)");
@@ -3660,7 +3662,7 @@
 					strncpy(e->language, language, sizeof(e->language) - 1);
                     strncpy(e->musicclass, musicclass, sizeof(e->musicclass)-1);
                     strncpy(e->mailbox, mailbox, sizeof(e->mailbox)-1);
-                    if (strlen(mailbox)) {
+                    if (!ast_strlen_zero(mailbox)) {
                         ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, gw->name, e->name);
                     }
                     if (!ep_reload) {
@@ -3839,7 +3841,7 @@
 
     for (i = 0; i < MAX_SUBS; i++) {
         ast_mutex_lock(&sub->lock);
-        if (strlen(sub->cxident)) {
+        if (!ast_strlen_zero(sub->cxident)) {
             transmit_connection_del(sub);
         }
         if (sub->rtp) {




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