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upstream: make ssh_remote_ipaddr() capable of being called after 

the ssh->state has been torn down; bz#2773

OpenBSD-Commit-ID: 167f12523613ca3d16d7716a690e7afa307dc7eb
This commit is contained in:
djm@openbsd.org 2018-06-01 04:05:29 +00:00 committed by Damien Miller
parent 3e088aaf23
commit 854ae209f9
1 changed files with 8 additions and 4 deletions
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12
packet.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: packet.c,v 1.270 2018/05/25 03:20:59 dtucker Exp $ */
/* $OpenBSD: packet.c,v 1.271 2018/06/01 04:05:29 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -418,13 +418,16 @@ ssh_packet_start_discard(struct ssh *ssh, struct sshenc *enc,
int
ssh_packet_connection_is_on_socket(struct ssh *ssh)
{
struct session_state *state = ssh->state;
struct session_state *state;
struct sockaddr_storage from, to;
socklen_t fromlen, tolen;
if (state->connection_in == -1 || state->connection_out == -1)
if (ssh == NULL || ssh->state == NULL)
return 0;
state = ssh->state;
if (state->connection_in == -1 || state->connection_out == -1)
return 0;
/* filedescriptors in and out are the same, so it's a socket */
if (state->connection_in == state->connection_out)
return 1;
@ -508,11 +511,12 @@ ssh_packet_get_connection_out(struct ssh *ssh)
const char *
ssh_remote_ipaddr(struct ssh *ssh)
{
const int sock = ssh->state->connection_in;
int sock;
/* Check whether we have cached the ipaddr. */
if (ssh->remote_ipaddr == NULL) {
if (ssh_packet_connection_is_on_socket(ssh)) {
sock = ssh->state->connection_in;
ssh->remote_ipaddr = get_peer_ipaddr(sock);
ssh->remote_port = get_peer_port(sock);
ssh->local_ipaddr = get_local_ipaddr(sock);