2 Copyright (C) Andrew Tridgell 1998
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 /* the socket based protocol for setting up a connection wit rsyncd */
26 extern int rsync_port;
28 int start_socket_client(char *host, char *path, int argc, char *argv[])
31 char *sargs[MAX_ARGS];
37 fd = open_socket_out(host, rsync_port);
42 server_options(sargs,&sargc);
47 sargs[sargc++] = path;
53 io_printf(fd,"%s\n",path);
56 if (!read_line(fd, line, sizeof(line)-1)) {
60 if (sscanf(line,"@RSYNCD: %d", &version) != 1) {
65 if (!read_line(fd, line, sizeof(line)-1)) {
68 if (strcmp(line,"@RSYNCD: OK") == 0) break;
69 rprintf(FINFO,"%s\n", line);
72 for (i=0;i<sargc;i++) {
73 io_printf(fd,"%s\n", sargs[i]);
79 if (!read_line(fd, line, sizeof(line)-1)) {
82 rprintf(FINFO,"%s\n", line);
86 return client_run(fd, fd, -1, argc, argv);
91 static int rsync_module(int fd, int i)
103 rprintf(FERROR,"rsyncd starting\n");
105 if (chroot(lp_path(i))) {
106 io_printf(fd,"@ERROR: chroot failed\n");
111 io_printf(fd,"@ERROR: chdir failed\n");
115 if (setgid(lp_gid(i))) {
116 io_printf(fd,"@ERROR: setgid failed\n");
120 if (setuid(lp_uid(i))) {
121 io_printf(fd,"@ERROR: setuid failed\n");
125 io_printf(fd,"@RSYNCD: OK\n");
127 argv[argc++] = "rsyncd";
130 if (!read_line(fd, line, sizeof(line)-1)) {
136 argv[argc] = strdup(line);
142 if (argc == MAX_ARGS) {
147 parse_arguments(argc, argv);
149 /* don't allow the logs to be flooded too fast */
150 if (verbose > 1) verbose = 1;
153 argp = argv + optind;
156 start_server(fd, fd, argc, argp);
161 static void send_listing(int fd)
163 int n = lp_numservices();
168 io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
171 /* this is called when a socket connection is established to a client
172 and we want to start talking. The setup of the system is done from
174 static int start_daemon(int fd)
179 set_socket_options(fd,"SO_KEEPALIVE");
181 io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION);
183 motd = lp_motd_file();
185 FILE *f = fopen(motd,"r");
186 while (f && !feof(f)) {
187 int len = fread(line, 1, sizeof(line)-1, f);
190 io_printf(fd,"%s", line);
197 /* read a single line indicating the resource that is wanted */
202 if (!read_line(fd, line, sizeof(line)-1)) {
206 if (!*line || strcmp(line,"#list")==0) {
212 /* it's some sort of command that I don't understand */
213 io_printf(fd,"ERROR: Unknown command '%s'\n", line);
219 io_printf(fd,"ERROR: Unknown module '%s'\n", line);
223 return rsync_module(fd, i);
230 int daemon_main(void)
232 if (!lp_load(RSYNCD_CONF)) {
236 if (is_a_socket(STDIN_FILENO)) {
237 /* we are running via inetd */
238 return start_daemon(STDIN_FILENO);
243 return start_accept_loop(rsync_port, start_daemon);