Fix via comparison to be case insensitive

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5938 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 1d94f8072a7a69256ff8f92b816d20abbd8f2b0e..d698e852db4031f9590419e2fb74513dc4c2c7a4 100755 (executable)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -5925,13 +5925,13 @@ static int check_via(struct sip_pvt *p, struct sip_request *req)
        if (c) {
                *c = '\0';
                c = ast_skip_blanks(c+1);
-               if (strcmp(via, "SIP/2.0/UDP")) {
+               if (strcasecmp(via, "SIP/2.0/UDP")) {
                        ast_log(LOG_WARNING, "Don't know how to respond via '%s'\n", via);
                        return -1;
                }
                pt = strchr(c, ':');
                if (pt)
-                       *pt++ = '\0';   /* remeber port pointer */
+                       *pt++ = '\0';   /* remember port pointer */
                hp = ast_gethostbyname(c, &ahp);
                if (!hp) {
                        ast_log(LOG_WARNING, "'%s' is not a valid host\n", c);
@@ -5942,7 +5942,7 @@ static int check_via(struct sip_pvt *p, struct sip_request *req)
                memcpy(&p->sa.sin_addr, hp->h_addr, sizeof(p->sa.sin_addr));
                p->sa.sin_port = htons(pt ? atoi(pt) : DEFAULT_SIP_PORT);
                c = strstr(via, ";rport");
-               if (c && (c[6] != '=')) /* XXX some special hack ? */
+               if (c && (c[6] != '=')) /* rport query, not answer */
                        ast_set_flag(p, SIP_NAT_ROUTE);
                if (sip_debug_test_pvt(p)) {
                        c = (ast_test_flag(p, SIP_NAT) & SIP_NAT_ROUTE) ? "NAT" : "non-NAT";