#include "rsync.h"
static const char default_name[] = "UNKNOWN";
+extern int am_daemon;
+extern int am_server;
/**
struct sockaddr_storage ss;
socklen_t length = sizeof ss;
char *ssh_client, *p;
+ int len;
static char addr_buf[100];
static int initialised;
initialised = 1;
- ssh_client = getenv("SSH_CLIENT");
- if (ssh_client != NULL) {
- strlcpy(addr_buf, ssh_client, sizeof(addr_buf));
- /* truncate SSH_CLIENT to just IP address */
- p = strchr(addr_buf, ' ');
- if (p)
- *p = '\0';
- else
- strlcpy(addr_buf, "0.0.0.0", sizeof("0.0.0.0"));
- } else
+ 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;
}
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;
strcpy(name_buf, default_name);
initialised = 1;
- if (getenv("SSH_CLIENT") != NULL) {
- /* Look up name of IP address given in $SSH_CLIENT */
+ if (am_server) {
+ /* daemon over --rsh mode */
+
+ char *addr = client_addr(fd);
#ifdef INET6
- int af = AF_INET6;
- struct sockaddr_in6 sin;
-#else
- int af = AF_INET;
- struct sockaddr_in sin;
+ 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.s6_addr);
+ sin6.sin6_family = AF_INET6;
+ } else
#endif
- socklen_t sin_len = sizeof sin;
-
- memset(&sin, 0, sin_len);
- sin.sin_family = af;
- inet_pton(af, client_addr(fd), &sin.sin_addr.s_addr);
+ {
+ ssp = (struct sockaddr_storage *) &sin;
+ ss_len = sizeof sin;
+ memset(ssp, 0, ss_len);
+ inet_pton(AF_INET, addr, &sin.sin_addr.s_addr);
+ sin.sin_family = AF_INET;
+ }
- if (!lookup_name(fd, (struct sockaddr_storage *)&sin, sin_len,
- name_buf, sizeof name_buf, port_buf, sizeof port_buf))
- check_name(fd, (struct sockaddr_storage *)&sin, name_buf);
} else {
- struct sockaddr_storage ss;
- socklen_t ss_len = sizeof ss;
+ ss_len = sizeof ss;
+ ssp = &ss;
client_sockaddr(fd, &ss, &ss_len);
- if (!lookup_name(fd, &ss, ss_len, name_buf, sizeof name_buf,
- port_buf, sizeof port_buf))
- check_name(fd, &ss, name_buf);
}
+ 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",
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 {