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Issue #8524, support multiple via header values (tardieu)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@49983 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Olle Johansson
2007-01-08 13:28:18 +00:00
parent be32fad9b8
commit 0f96f73768
1 changed files with 22 additions and 11 deletions
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33
channels/chan_sip.c
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@@ -5327,21 +5327,25 @@ static int copy_via_headers(struct sip_pvt *p, struct sip_request *req, const st
break;
if (!copied) { /* Only check for empty rport in topmost via header */
char *rport;
char leftmost[256], *others, *rport;
/* Only work on leftmost value */
ast_copy_string(leftmost, oh, sizeof(leftmost));
others = strchr(leftmost, ',');
if (others)
*others++ = '\0';
/* Find ;rport; (empty request) */
rport = strstr(oh, ";rport");
rport = strstr(leftmost, ";rport");
if (rport && *(rport+6) == '=')
rport = NULL; /* We already have a parameter to rport */
/* Check rport if NAT=yes or NAT=rfc3581 (which is the default setting) */
if (rport && ((ast_test_flag(&p->flags[0], SIP_NAT) == SIP_NAT_ALWAYS) || (ast_test_flag(&p->flags[0], SIP_NAT) == SIP_NAT_RFC3581))) {
/* We need to add received port - rport */
char tmp[256], *end;
char *end;
ast_copy_string(tmp, oh, sizeof(tmp));
rport = strstr(tmp, ";rport");
rport = strstr(leftmost, ";rport");
if (rport) {
end = strchr(rport + 1, ';');
@@ -5352,13 +5356,15 @@ static int copy_via_headers(struct sip_pvt *p, struct sip_request *req, const st
}
/* Add rport to first VIA header if requested */
snprintf(new, sizeof(new), "%s;received=%s;rport=%d",
tmp, ast_inet_ntoa(p->recv.sin_addr),
ntohs(p->recv.sin_port));
snprintf(new, sizeof(new), "%s;received=%s;rport=%d%s%s",
leftmost, ast_inet_ntoa(p->recv.sin_addr),
ntohs(p->recv.sin_port),
others ? "," : "", others ? others : "");
} else {
/* We should *always* add a received to the topmost via */
snprintf(new, sizeof(new), "%s;received=%s",
oh, ast_inet_ntoa(p->recv.sin_addr));
snprintf(new, sizeof(new), "%s;received=%s%s%s",
leftmost, ast_inet_ntoa(p->recv.sin_addr),
others ? "," : "", others ? others : "");
}
oh = new; /* the header to copy */
} /* else add the following via headers untouched */
@@ -8741,6 +8747,11 @@ static void check_via(struct sip_pvt *p, struct sip_request *req)
ast_copy_string(via, get_header(req, "Via"), sizeof(via));
/* Work on the leftmost value of the topmost Via header */
c = strchr(via, ',');
if (c)
*c = '\0';
/* Check for rport */
c = strstr(via, ";rport");
if (c && (c[6] != '=')) /* rport query, not answer */