Change back to using sockaddr_storage rather than sockaddr_in. If

[rsync.git] / socket.c

diff --git a/socket.c b/socket.c
index 8e895ca8329b7cbf28c644078bdf8be700cadaa4..02a25111619ce8a220b73d8630a24b14a6cd40d4 100644 (file)
--- a/socket.c
+++ b/socket.c
@@ -162,6 +162,10 @@ int open_socket_out(char *host, int port, const char *bind_address,
        }
 
        s = -1;
+       /* Try to connect to all addresses for this machine until we get
+        * through.  It might e.g. be multi-homed, or have both IPv4 and IPv6
+        * addresses.  We need to create a socket for each record, since the
+        * address record tells us what protocol to use to try to connect. */
        for (res = res0; res; res = res->ai_next) {
                s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
                if (s < 0)
@@ -176,12 +180,16 @@ int open_socket_out(char *host, int port, const char *bind_address,
                        bhints.ai_flags = AI_PASSIVE;
                        error = getaddrinfo(bind_address, NULL, &bhints, &bres);
                        if (error) {
-                               rprintf(FERROR, RSYNC_NAME ": getaddrinfo: bind address %s <noport>: %s\n",
+                               rprintf(FERROR, RSYNC_NAME ": getaddrinfo: "
+                                       "bind address %s <noport>: %s\n",
                                        bind_address, gai_strerror(error));
                                continue;
                        }
                        if (bres->ai_next) {
-                               rprintf(FERROR, RSYNC_NAME ": getaddrinfo: bind address %s resolved to multiple hosts\n",
+                               /* I'm not at all sure that this is the right
+                                * response here... -- mbp */
+                               rprintf(FERROR, RSYNC_NAME ": getaddrinfo: "
+                                       "bind address %s resolved to multiple hosts\n",
                                        bind_address);
                                freeaddrinfo(bres);
                                continue;
@@ -372,8 +380,8 @@ void start_accept_loop(int port, int (*fn)(int ))
        while (1) {
                fd_set fds;
                int fd;
-               struct sockaddr addr;
-               int in_addrlen = sizeof(addr);
+               struct sockaddr_storage addr;
+               int addrlen = sizeof(addr);
 
                /* close log file before the potentially very long select so
                   file can be trimmed by another process instead of growing
@@ -389,7 +397,7 @@ void start_accept_loop(int port, int (*fn)(int ))
 
                if(!FD_ISSET(s, &fds)) continue;
 
-               fd = accept(s,(struct sockaddr *)&addr,&in_addrlen);
+               fd = accept(s,(struct sockaddr *)&addr,&addrlen);
 
                if (fd == -1) continue;
 
@@ -555,7 +563,7 @@ void become_daemon(void)
  **/
 char *client_addr(int fd)
 {
-       struct sockaddr ss;
+       struct sockaddr_storage ss;
        int     length = sizeof(ss);
        static char addr_buf[100];
        static int initialised;
@@ -564,11 +572,11 @@ char *client_addr(int fd)
 
        initialised = 1;
 
-       if (getpeername(fd, &ss, &length)) {
+       if (getpeername(fd, (struct sockaddr *)&ss, &length)) {
                exit_cleanup(RERR_SOCKETIO);
        }
 
-       getnameinfo(&ss, length,
+       getnameinfo((struct sockaddr *)&ss, length,
                addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
        return addr_buf;
 }
@@ -579,7 +587,7 @@ char *client_addr(int fd)
  **/
 char *client_name(int fd)
 {
-       struct sockaddr ss;
+       struct sockaddr_storage ss;
        int     length = sizeof(ss);
        static char name_buf[100];
        static char port_buf[100];
@@ -597,12 +605,12 @@ char *client_name(int fd)
        if (getpeername(fd, (struct sockaddr *)&ss, &length)) {
                /* FIXME: Can we really not continue? */
                rprintf(FERROR, RSYNC_NAME ": getpeername on fd%d failed: %s\n",
-                       strerror(errno));                       
+                       fd, strerror(errno));
                exit_cleanup(RERR_SOCKETIO);
        }
 
 #ifdef INET6
-        if (ss.sa_family == AF_INET6 && 
+        if (ss.ss_family == AF_INET6 && 
            IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)&ss)->sin6_addr)) {
                struct sockaddr_in6 sin6;
                struct sockaddr_in *sin;
@@ -646,7 +654,7 @@ char *client_name(int fd)
 
        /* XXX sin6_flowinfo and other fields */
        for (res = res0; res; res = res->ai_next) {
-               if (res->ai_family != ss.sa_family)
+               if (res->ai_family != ss.ss_family)
                        continue;
                if (res->ai_addrlen != length)
                        continue;