Support SIP uri's starting with SIP: and sip: (reported by Tony Mountfield on the mailing list. Thanks!)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@64535 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -4066,9 +4066,9 @@ static void set_destination(struct sip_pvt *p, char *uri)
 		++h;
 	else {
 		h = uri;
-		if (strncmp(h, "sip:", 4) == 0)
+		if (strncasecmp(h, "sip:", 4) == 0)
 			h += 4;
-		else if (strncmp(h, "sips:", 5) == 0)
+		else if (strncasecmp(h, "sips:", 5) == 0)
 			h += 5;
 	}
 	hn = strcspn(h, ":;>") + 1;
@@ -5243,7 +5243,7 @@ static int transmit_state_notify(struct sip_pvt *p, int state, int full, int sub
 
 	ast_copy_string(from, get_header(&p->initreq, "From"), sizeof(from));
 	c = get_in_brackets(from);
-	if (strncmp(c, "sip:", 4)) {
+	if (strncasecmp(c, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Huh?  Not a SIP header (%s)?\n", c);
 		return -1;
 	}
@@ -5253,7 +5253,7 @@ static int transmit_state_notify(struct sip_pvt *p, int state, int full, int sub
 
 	ast_copy_string(to, get_header(&p->initreq, "To"), sizeof(to));
 	c = get_in_brackets(to);
-	if (strncmp(c, "sip:", 4)) {
+	if (strncasecmp(c, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Huh?  Not a SIP header (%s)?\n", c);
 		return -1;
 	}
@@ -5751,7 +5751,7 @@ static int transmit_refer(struct sip_pvt *p, const char *dest)
 	ast_copy_string(from, of, sizeof(from));
 	of = get_in_brackets(from);
 	ast_copy_string(p->from,of,sizeof(p->from));
-	if (strncmp(of, "sip:", 4)) {
+	if (strncasecmp(of, "sip:", 4)) {
 		ast_log(LOG_NOTICE, "From address missing 'sip:', using it anyway\n");
 	} else
 		of += 4;
@@ -6613,7 +6613,7 @@ static int register_verify(struct sip_pvt *p, struct sockaddr_in *sin, struct si
 	if (name)
 		*name = '\0';
 
-	if (!strncmp(c, "sip:", 4)) {
+	if (!strncasecmp(c, "sip:", 4)) {
 		name = c + 4;
 	} else {
 		name = c;
@@ -6755,7 +6755,7 @@ static int get_rdnis(struct sip_pvt *p, struct sip_request *oreq)
 	if (ast_strlen_zero(tmp))
 		return 0;
 	c = get_in_brackets(tmp);
-	if (strncmp(c, "sip:", 4)) {
+	if (strncasecmp(c, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Huh?  Not an RDNIS SIP header (%s)?\n", c);
 		return -1;
 	}
@@ -6789,13 +6789,13 @@ static int get_destination(struct sip_pvt *p, struct sip_request *oreq)
 
 	from = get_in_brackets(tmpf);
 	
-	if (strncmp(uri, "sip:", 4)) {
+	if (strncasecmp(uri, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Huh?  Not a SIP header (%s)?\n", uri);
 		return -1;
 	}
 	uri += 4;
 	if (!ast_strlen_zero(from)) {
-		if (strncmp(from, "sip:", 4)) {
+		if (strncasecmp(from, "sip:", 4)) {
 			ast_log(LOG_WARNING, "Huh?  Not a SIP header (%s)?\n", from);
 			return -1;
 		}
@@ -6937,12 +6937,12 @@ static int get_refer_info(struct sip_pvt *sip_pvt, struct sip_request *outgoing_
 	}
 	h_contact = get_header(req, "Contact");
 	
-	if (strncmp(refer_to, "sip:", 4)) {
+	if (strncasecmp(refer_to, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Refer-to: Huh?  Not a SIP header (%s)?\n", refer_to);
 		return -1;
 	}
 
-	if (strncmp(referred_by, "sip:", 4)) {
+	if (strncasecmp(referred_by, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Referred-by: Huh?  Not a SIP header (%s) Ignoring?\n", referred_by);
 		referred_by = NULL;
 	}
@@ -7058,7 +7058,7 @@ static int get_also_info(struct sip_pvt *p, struct sip_request *oreq)
 	c = get_in_brackets(tmp);
 	
 		
-	if (strncmp(c, "sip:", 4)) {
+	if (strncasecmp(c, "sip:", 4)) {
 		ast_log(LOG_WARNING, "Huh?  Not a SIP header (%s)?\n", c);
 		return -1;
 	}
@@ -7249,7 +7249,7 @@ static int check_user_full(struct sip_pvt *p, struct sip_request *req, int sipme
 	of = get_in_brackets(from);
 	if (ast_strlen_zero(p->exten)) {
 		t = uri2;
-		if (!strncmp(t, "sip:", 4))
+		if (!strncasecmp(t, "sip:", 4))
 			t+= 4;
 		ast_copy_string(p->exten, t, sizeof(p->exten));
 		t = strchr(p->exten, '@');
@@ -7260,7 +7260,7 @@ static int check_user_full(struct sip_pvt *p, struct sip_request *req, int sipme
 	}
 	/* save the URI part of the From header */
 	ast_copy_string(p->from, of, sizeof(p->from));
-	if (strncmp(of, "sip:", 4)) {
+	if (strncasecmp(of, "sip:", 4)) {
 		ast_log(LOG_NOTICE, "From address missing 'sip:', using it anyway\n");
 	} else
 		of += 4;
@@ -13385,7 +13385,7 @@ static int sip_sipredirect(struct sip_pvt *p, const char *dest)
 			ast_log(LOG_ERROR, "Cannot retrieve the 'To' header from the original SIP request!\n");
 			return 0;
 		}
-		if ((localtmp = strstr(tmp, "sip:")) && (localtmp = strchr(localtmp, '@'))) {
+		if ((localtmp = strcasestr(tmp, "sip:")) && (localtmp = strchr(localtmp, '@'))) {
 			char lhost[80], lport[80];
 			memset(lhost, 0, sizeof(lhost));
 			memset(lport, 0, sizeof(lport));