/* -*- c-file-style: "linux" -*-
-
+
rsync -- fast file replication program
-
+
Copyright (C) 1992-2001 by Andrew Tridgell <tridge@samba.org>
Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
/**
* @file clientname.c
- *
+ *
* Functions for looking up the remote name or addr of a socket.
*
* This file is now converted to use the new-style getaddrinfo()
#include "rsync.h"
static const char default_name[] = "UNKNOWN";
+extern int am_daemon;
+extern int am_server;
/**
- * Return the IP addr of the client as a string
+ * Return the IP addr of the client as a string
**/
char *client_addr(int fd)
{
struct sockaddr_storage ss;
socklen_t length = sizeof ss;
+ char *ssh_client, *p;
+ int len;
static char addr_buf[100];
static int initialised;
- if (initialised) return addr_buf;
+ if (initialised)
+ return addr_buf;
initialised = 1;
- client_sockaddr(fd, &ss, &length);
+ if (am_server) {
+ /* daemon over --rsh mode */
+ strcpy(addr_buf, "0.0.0.0");
+ if ((ssh_client = getenv("SSH_CLIENT")) != NULL) {
+ /* truncate SSH_CLIENT to just IP address */
+ p = strchr(ssh_client, ' ');
+ if (p) {
+ len = MIN((unsigned int) (p - ssh_client),
+ sizeof addr_buf - 1);
+ strncpy(addr_buf, ssh_client, len);
+ *(addr_buf + len) = '\0';
+ }
+ }
+ } else {
+ client_sockaddr(fd, &ss, &length);
+ getnameinfo((struct sockaddr *)&ss, length,
+ addr_buf, sizeof addr_buf, NULL, 0, NI_NUMERICHOST);
+ }
- getnameinfo((struct sockaddr *)&ss, length,
- addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
-
return addr_buf;
}
**/
char *client_name(int fd)
{
- struct sockaddr_storage ss;
- socklen_t ss_len = sizeof ss;
static char name_buf[100];
static char port_buf[100];
static int initialised;
+ struct sockaddr_storage ss, *ssp;
+ struct sockaddr_in sin;
+#ifdef INET6
+ struct sockaddr_in6 sin6;
+#endif
+ socklen_t ss_len;
- if (initialised) return name_buf;
+ if (initialised)
+ return name_buf;
strcpy(name_buf, default_name);
initialised = 1;
- client_sockaddr(fd, &ss, &ss_len);
+ if (am_server) {
+ /* daemon over --rsh mode */
+
+ char *addr = client_addr(fd);
+#ifdef INET6
+ int dots = 0;
+ char *p;
+
+ for (p = addr; *p && (dots <= 3); p++) {
+ if (*p == '.')
+ dots++;
+ }
+ if (dots > 3) {
+ /* more than 4 parts to IP address, must be ipv6 */
+ ssp = (struct sockaddr_storage *) &sin6;
+ ss_len = sizeof sin6;
+ memset(ssp, 0, ss_len);
+ inet_pton(AF_INET6, addr, &sin6.sin6_addr);
+ sin6.sin6_family = AF_INET6;
+ } else
+#endif
+ {
+ ssp = (struct sockaddr_storage *) &sin;
+ ss_len = sizeof sin;
+ memset(ssp, 0, ss_len);
+ inet_pton(AF_INET, addr, &sin.sin_addr);
+ sin.sin_family = AF_INET;
+ }
- if (!lookup_name(fd, &ss, ss_len, name_buf, sizeof name_buf,
- port_buf, sizeof port_buf))
- check_name(fd, &ss, name_buf);
+ } else {
+ ss_len = sizeof ss;
+ ssp = &ss;
+
+ client_sockaddr(fd, &ss, &ss_len);
+
+ }
+
+ if (!lookup_name(fd, ssp, ss_len, name_buf, sizeof name_buf,
+ port_buf, sizeof port_buf))
+ check_name(fd, ssp, name_buf);
return name_buf;
}
struct sockaddr_storage *ss,
socklen_t *ss_len)
{
+ memset(ss, 0, sizeof *ss);
+
if (getpeername(fd, (struct sockaddr *) ss, ss_len)) {
/* FIXME: Can we really not continue? */
rprintf(FERROR, RSYNC_NAME ": getpeername on fd%d failed: %s\n",
struct sockaddr_in6 sin6;
struct sockaddr_in *sin;
- memcpy(&sin6, ss, sizeof(sin6));
+ memcpy(&sin6, ss, sizeof sin6);
sin = (struct sockaddr_in *)ss;
- memset(sin, 0, sizeof(*sin));
+ memset(sin, 0, sizeof *sin);
sin->sin_family = AF_INET;
- *ss_len = sizeof(struct sockaddr_in);
-#ifdef HAVE_SOCKADDR_LEN
+ *ss_len = sizeof (struct sockaddr_in);
+#if HAVE_SOCKADDR_IN_LEN
sin->sin_len = *ss_len;
#endif
sin->sin_port = sin6.sin6_port;
* (IN6_V4MAPPED_TO_SINADDR ?), but it does not seem
* to be present in the Linux headers. */
memcpy(&sin->sin_addr, &sin6.sin6_addr.s6_addr[12],
- sizeof(sin->sin_addr));
+ sizeof sin->sin_addr);
}
#endif
}
char *port_buf, size_t port_buf_len)
{
int name_err;
-
+
/* reverse lookup */
name_err = getnameinfo((struct sockaddr *) ss, ss_len,
name_buf, name_buf_len,
{
int ss_family = get_sockaddr_family(ss);
const char fn[] = "compare_addrinfo_sockaddr";
-
+
if (ai->ai_family != ss_family) {
rprintf(FERROR,
"%s: response family %d != %d\n",
sin1 = (const struct sockaddr_in *) ss;
sin2 = (const struct sockaddr_in *) ai->ai_addr;
-
+
return memcmp(&sin1->sin_addr, &sin2->sin_addr,
sizeof sin1->sin_addr);
}
sin1 = (const struct sockaddr_in6 *) ss;
sin2 = (const struct sockaddr_in6 *) ai->ai_addr;
-
- return memcmp(&sin1->sin6_addr, &sin2->sin6_addr,
- sizeof sin1->sin6_addr);
+
+ if (ai->ai_addrlen < sizeof (struct sockaddr_in6)) {
+ rprintf(FERROR,
+ "%s: too short sockaddr_in6; length=%d\n",
+ fn, ai->ai_addrlen);
+ return 1;
+ }
+
+ if (memcmp(&sin1->sin6_addr, &sin2->sin6_addr,
+ sizeof sin1->sin6_addr))
+ return 1;
+
+#ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
+ if (sin1->sin6_scope_id != sin2->sin6_scope_id)
+ return 1;
+#endif
+ return 0;
}
#endif /* INET6 */
else {
int error;
int ss_family = get_sockaddr_family(ss);
- memset(&hints, 0, sizeof(hints));
+ memset(&hints, 0, sizeof hints);
hints.ai_family = ss_family;
hints.ai_flags = AI_CANONNAME;
hints.ai_socktype = SOCK_STREAM;