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Only clear route if we have a new one

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2832 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2004-04-30 04:05:22 +00:00
parent 93fd179b4c
commit ec6644c146
1 changed files with 8 additions and 4 deletions
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12
channels/chan_sip.c
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@@ -3699,12 +3699,9 @@ static void build_route(struct sip_pvt *p, struct sip_request *req, int backward
struct sip_route *thishop, *head, *tail;
int start = 0;
int len;
int firstpass = 1;
char *rr, *contact, *c;
if (p->route) {
free_old_route(p->route);
p->route = NULL;
}
/* We build up head, then assign it to p->route when we're done */
head = NULL; tail = head;
/* 1st we pass through all the hops in any Record-Route headers */
@@ -3712,6 +3709,13 @@ static void build_route(struct sip_pvt *p, struct sip_request *req, int backward
/* Each Record-Route header */
rr = __get_header(req, "Record-Route", &start);
if (*rr == '\0') break;
if (firstpass) {
if (p->route) {
free_old_route(p->route);
p->route = NULL;
}
firstpass = 0;
}
for (;;) {
/* Each route entry */
/* Find < */