diff options
author | Damien Miller <djm@mindrot.org> | 2001-01-30 09:19:34 +1100 |
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committer | Damien Miller <djm@mindrot.org> | 2001-01-30 09:19:34 +1100 |
commit | d83ff35d66e11978e0b821ecbfa07011ddcb8868 (patch) | |
tree | b4c757a1a9acd2a1acd074a00fce71b30ff2ee48 /canohost.c | |
parent | 5e953217f13b340d8a5fbcd771a1dbaf43354f20 (diff) | |
download | openssh-git-d83ff35d66e11978e0b821ecbfa07011ddcb8868.tar.gz |
- (djm) OpenBSD CVS Sync:
- markus@cvs.openbsd.org 2001/01/29 12:42:35
[canohost.c canohost.h channels.c clientloop.c]
add get_peer_ipaddr(socket), x11-fwd in ssh2 requires ipaddr, not DNS
Diffstat (limited to 'canohost.c')
-rw-r--r-- | canohost.c | 59 |
1 files changed, 34 insertions, 25 deletions
@@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: canohost.c,v 1.18 2001/01/21 19:05:45 markus Exp $"); +RCSID("$OpenBSD: canohost.c,v 1.19 2001/01/29 19:42:33 markus Exp $"); #include "packet.h" #include "xmalloc.h" @@ -188,46 +188,55 @@ get_canonical_hostname() } /* - * Returns the IP-address of the remote host as a string. The returned - * string must not be freed. + * Returns the remote IP-address of socket as a string. The returned + * string must be freed. */ -const char * -get_remote_ipaddr() +char * +get_peer_ipaddr(int socket) { - static char *canonical_host_ip = NULL; struct sockaddr_storage from; socklen_t fromlen; - int socket; char ntop[NI_MAXHOST]; - /* Check whether we have chached the name. */ - if (canonical_host_ip != NULL) - return canonical_host_ip; - - /* If not a socket, return UNKNOWN. */ - if (!packet_connection_is_on_socket()) { - canonical_host_ip = xstrdup("UNKNOWN"); - return canonical_host_ip; - } - /* Get client socket. */ - socket = packet_get_connection_in(); - /* Get IP address of client. */ fromlen = sizeof(from); memset(&from, 0, sizeof(from)); if (getpeername(socket, (struct sockaddr *) & from, &fromlen) < 0) { - debug("getpeername failed: %.100s", strerror(errno)); - fatal_cleanup(); + debug("get_peer_ipaddr: getpeername failed: %.100s", strerror(errno)); + return NULL; } /* Get the IP address in ascii. */ if (getnameinfo((struct sockaddr *)&from, fromlen, ntop, sizeof(ntop), - NULL, 0, NI_NUMERICHOST) != 0) - fatal("get_remote_hostname: getnameinfo NI_NUMERICHOST failed"); + NULL, 0, NI_NUMERICHOST) != 0) { + error("get_peer_ipaddr: getnameinfo NI_NUMERICHOST failed"); + return NULL; + } + return xstrdup(ntop); +} - canonical_host_ip = xstrdup(ntop); +/* + * Returns the IP-address of the remote host as a string. The returned + * string must not be freed. + */ - /* Return ip address string. */ +const char * +get_remote_ipaddr() +{ + 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_peer_ipaddr(packet_get_connection_in()); + if (canonical_host_ip == NULL) + fatal_cleanup(); + } else { + /* If not on socket, return UNKNOWN. */ + canonical_host_ip = xstrdup("UNKNOWN"); + } + } return canonical_host_ip; } |