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chan_sip: Check that an iostream exists before accessing. 

Before getting the file descriptor for an iostream check
that it is present.

ASTERISK-27534

Change-Id: Ie0aa1394007a37c30e337ea1176a6fb3a63bc99c
This commit is contained in:
Joshua Colp 2018-01-11 13:05:05 -05:00 committed by Corey Farrell
parent 8a6febd980
commit 6d5f4768a4
1 changed files with 1 additions and 1 deletions
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2
channels/chan_sip.c
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@ -29450,7 +29450,7 @@ static int sip_prepare_socket(struct sip_pvt *p)
return s->fd;
}
if ((s->type & (AST_TRANSPORT_TCP | AST_TRANSPORT_TLS)) &&
s->tcptls_session) {
s->tcptls_session && s->tcptls_session->stream) {
return ast_iostream_get_fd(s->tcptls_session->stream);
}
if ((s->type & (AST_TRANSPORT_WS | AST_TRANSPORT_WSS))) {