I'm not sure if this is useful to anyone, but I made a small patch to
include the local IP address that the user connected to in the environment
(the opposite of SSH_CLIENT). The variable is called SSH_LOCAL.
-Eric
-------------- next part --------------
*** openssh-2.9.9p2/canohost.c.bak Sun Jun 24 22:01:24 2001
--- openssh-2.9.9p2/canohost.c Fri Oct 12 16:52:09 2001
***************
*** 255,260 ****
--- 255,281 ----
return get_socket_address(socket, 0, NI_NAMEREQD);
}
+ const char *
+ get_local_ipaddr2(void)
+ {
+ static char *canonical_host_ip = NULL;
+
+ /* Check whether we have cached the ipaddr. */
+ if (canonical_host_ip == NULL) {
+ if (packet_connection_is_on_socket()) {
+ canonical_host_ip + get_local_ipaddr(packet_get_connection_out());
+ if (canonical_host_ip == NULL)
+ fatal_cleanup();
+ } else {
+ /* If not on socket, return UNKNOWN. */
+ canonical_host_ip = xstrdup("UNKNOWN");
+ }
+ }
+ return canonical_host_ip;
+ }
+
+
/*
* Returns the IP-address of the remote host as a string. The returned
* string must not be freed.
*** openssh-2.9.9p2/canohost.h.bak Tue Jul 3 21:46:57 2001
--- openssh-2.9.9p2/canohost.h Fri Oct 12 16:52:12 2001
***************
*** 14,19 ****
--- 14,20 ----
const char *get_canonical_hostname(int);
const char *get_remote_ipaddr(void);
+ const char *get_local_ipaddr2(void);
const char *get_remote_name_or_ip(u_int, int);
char *get_peer_ipaddr(int);
*** openssh-2.9.9p2/session.c.bak Sun Sep 16 15:17:15 2001
--- openssh-2.9.9p2/session.c Fri Oct 12 16:52:09 2001
***************
*** 1255,1260 ****
--- 1255,1263 ----
snprintf(buf, sizeof buf, "%.50s %d %d",
get_remote_ipaddr(), get_remote_port(), get_local_port());
child_set_env(&env, &envsize, "SSH_CLIENT", buf);
+ snprintf(buf, sizeof buf, "%.50s",
+ get_local_ipaddr2());
+ child_set_env(&env, &envsize, "SSH_LOCAL", buf);
if (s->ttyfd != -1)
child_set_env(&env, &envsize, "SSH_TTY", s->tty);
