X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/1f5c6343e6a3d55689073f60e71fd56cab42f89d..a1b1b1da46bdc8b36cc821b3839adc13656de70b:/clientserver.c

diff --git a/clientserver.c b/clientserver.c
index 5f03226d..41b8dfa8 100644
--- a/clientserver.c
+++ b/clientserver.c
@@ -1,5 +1,6 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2000 by Andrew Tridgell
    
    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
@@ -16,7 +17,7 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-/* the socket based protocol for setting up a connection wit rsyncd */
+/* the socket based protocol for setting up a connection with rsyncd */
 
 #include "rsync.h"
 
@@ -27,6 +28,11 @@ extern int rsync_port;
 char *auth_user;
 int sanitize_paths = 0;
 
+
+/*
+ * Run a client connected to an rsyncd.  The alternative to this
+ * function for remote-shell connections is do_cmd.
+ */
 int start_socket_client(char *host, char *path, int argc, char *argv[])
 {
 	int fd, i;
@@ -36,7 +42,26 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	char *p, *user=NULL;
 	extern int remote_version;
 	extern int am_sender;
+	extern struct in_addr socket_address;
+	extern char *shell_cmd;
+
+	if (argc == 0 && !am_sender) {
+		extern int list_only;
+		list_only = 1;
+	}
 
+        /* This is just a friendliness enhancement: if the connection
+         * is to an rsyncd then there is no point specifying the -e option.
+         * Note that this is only set if the -e was explicitly specified,
+         * not if the environment variable just happens to be set.
+         * See http://lists.samba.org/pipermail/rsync/2000-September/002744.html
+         */
+        if (shell_cmd) {
+                rprintf(FERROR, "WARNING: --rsh or -e option ignored when "
+                        "connecting to rsync daemon\n");
+                /* continue */
+        }
+        
 	if (*path == '/') {
 		rprintf(FERROR,"ERROR: The remote path must start with a module name\n");
 		return -1;
@@ -52,7 +77,7 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	if (!user) user = getenv("USER");
 	if (!user) user = getenv("LOGNAME");
 
-	fd = open_socket_out(host, rsync_port);
+	fd = open_socket_out(host, rsync_port, &socket_address);
 	if (fd == -1) {
 		exit_cleanup(RERR_SOCKETIO);
 	}
@@ -100,8 +125,10 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	}
 	io_printf(fd,"\n");
 
-	if (remote_version > 17 && !am_sender)
-		io_start_multiplex_in(fd);
+	if (remote_version < 23) {
+		if (remote_version == 22 || (remote_version > 17 && !am_sender))
+			io_start_multiplex_in(fd);
+	}
 
 	return client_run(fd, fd, -1, argc, argv);
 }
@@ -162,9 +189,6 @@ static int rsync_module(int fd, int i)
 
 	module_id = i;
 
-	if (lp_read_only(i))
-		read_only = 1;
-
 	am_root = (getuid() == 0);
 
 	if (am_root) {
@@ -201,24 +225,24 @@ static int rsync_module(int fd, int i)
 	p = lp_exclude(i);
 	add_exclude_line(p);
 
-	log_open();
+	log_init();
 
 	if (use_chroot) {
 		if (chroot(lp_path(i))) {
-			rprintf(FERROR,"chroot %s failed\n", lp_path(i));
+			rsyserr(FERROR, errno, "chroot %s failed", lp_path(i));
 			io_printf(fd,"@ERROR: chroot failed\n");
 			return -1;
 		}
 
 		if (!push_dir("/", 0)) {
-			rprintf(FERROR,"chdir %s failed\n", lp_path(i));
+                        rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
 			io_printf(fd,"@ERROR: chdir failed\n");
 			return -1;
 		}
 
 	} else {
 		if (!push_dir(lp_path(i), 0)) {
-			rprintf(FERROR,"chdir %s failed\n", lp_path(i));
+			rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
 			io_printf(fd,"@ERROR: chdir failed\n");
 			return -1;
 		}
@@ -227,13 +251,13 @@ static int rsync_module(int fd, int i)
 
 	if (am_root) {
 		if (setgid(gid)) {
-			rprintf(FERROR,"setgid %d failed\n", gid);
+			rsyserr(FERROR, errno, "setgid %d failed", gid);
 			io_printf(fd,"@ERROR: setgid failed\n");
 			return -1;
 		}
 
 		if (setuid(uid)) {
-			rprintf(FERROR,"setuid %d failed\n", uid);
+			rsyserr(FERROR, errno, "setuid %d failed", uid);
 			io_printf(fd,"@ERROR: setuid failed\n");
 			return -1;
 		}
@@ -315,8 +339,10 @@ static int rsync_module(int fd, int i)
 	argp = argv + optind;
 	optind = 0;
 
-	if (remote_version > 17 && am_sender)
-		io_start_multiplex_out(fd);
+	if (remote_version < 23) {
+		if (remote_version == 22 || (remote_version > 17 && am_sender))
+			io_start_multiplex_out(fd);
+	}
 
 	if (!ret) {
 		option_error();
@@ -361,7 +387,7 @@ static int start_daemon(int fd)
 
 	set_socket_options(fd,"SO_KEEPALIVE");
 	set_socket_options(fd,lp_socket_options());
-	
+	set_nonblocking(fd);
 
 	io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION);
 
@@ -439,11 +465,10 @@ int daemon_main(void)
 	become_daemon();
 
 	if (!lp_load(config_file, 1)) {
-		fprintf(stderr,"failed to load config file %s\n", config_file);
 		exit_cleanup(RERR_SYNTAX);
 	}
 
-	log_open();
+	log_init();
 
 	rprintf(FINFO,"rsyncd version %s starting\n",VERSION);
 
@@ -455,7 +480,7 @@ int daemon_main(void)
 		if ((fd = do_open(lp_pid_file(), O_WRONLY|O_CREAT|O_TRUNC,
 					0666 & ~orig_umask)) == -1) {
 		    cleanup_set_pid(0);
-		    fprintf(stderr,"failed to create pid file %s\n", pid_file);
+		    rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
 		    exit_cleanup(RERR_FILEIO);
 		}
 		slprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);