/* -*- c-file-style: "linux"; -*-
-
- Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
- Copyright (C) 2001 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.
-*/
-
-/* the socket based protocol for setting up a connection with rsyncd */
+ *
+ * Copyright (C) 1998-2001 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
+ *
+ * The socket based protocol for setting up a connection with
+ * rsyncd.
+ **/
#include "rsync.h"
-extern int module_id;
-extern int read_only;
+extern int am_sender;
+extern int am_server;
+extern int am_daemon;
+extern int am_root;
extern int verbose;
extern int rsync_port;
+extern int kludge_around_eof;
+extern int daemon_over_rsh;
+extern int list_only;
+extern int sanitize_paths;
+extern int filesfrom_fd;
+extern int remote_protocol;
+extern int protocol_version;
+extern int io_timeout;
+extern int select_timeout;
+extern int orig_umask;
+extern int no_detach;
+extern int default_af_hint;
+extern char *bind_address;
+extern struct filter_list_struct server_filter_list;
+extern char *config_file;
+extern char *files_from;
+
char *auth_user;
-int sanitize_paths = 0;
+int read_only = 0;
+int module_id = -1;
-/*
+/* Length of lp_path() string when in daemon mode & not chrooted, else 0. */
+unsigned int module_dirlen = 0;
+
+/**
* Run a client connected to an rsyncd. The alternative to this
- * function for remote-shell connections is do_cmd.
- */
+ * function for remote-shell connections is do_cmd().
+ *
+ * After negotiating which module to use and reading the server's
+ * motd, this hands over to client_run(). Telling the server the
+ * module will cause it to chroot/setuid/etc.
+ *
+ * Instead of doing a transfer, the client may at this stage instead
+ * get a listing of remote modules and exit.
+ *
+ * @return -1 for error in startup, or the result of client_run().
+ * Either way, it eventually gets passed to exit_cleanup().
+ **/
int start_socket_client(char *host, char *path, int argc, char *argv[])
{
- int fd, i;
- char *sargs[MAX_ARGS];
- int sargc=0;
- char line[MAXPATHLEN];
- char *p, *user=NULL;
- extern int remote_version;
- extern int am_sender;
- extern char *shell_cmd;
- extern int kludge_around_eof;
- extern char *bind_address;
-
- if (argc == 0 && !am_sender) {
- extern int list_only;
- list_only = 1;
- }
+ int fd, ret;
+ char *p, *user = NULL;
- /* 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 */
- }
-
+ /* This is redundant with code in start_inband_exchange(), but this
+ * short-circuits a problem in the client before we open a socket,
+ * and the extra check won't hurt. */
if (*path == '/') {
- rprintf(FERROR,"ERROR: The remote path must start with a module name not a /\n");
+ rprintf(FERROR,
+ "ERROR: The remote path must start with a module name not a /\n");
return -1;
}
- p = strchr(host, '@');
- if (p) {
+ if ((p = strchr(host, '@')) != NULL) {
user = host;
host = p+1;
- *p = 0;
+ *p = '\0';
}
- if (!user) user = getenv("USER");
- if (!user) user = getenv("LOGNAME");
+ if (rsync_port == 0)
+ rsync_port = RSYNC_PORT;
- fd = open_socket_out_wrapped (host, rsync_port, bind_address,
- global_opts.af_hint);
- if (fd == -1) {
+ fd = open_socket_out_wrapped(host, rsync_port, bind_address,
+ default_af_hint);
+ if (fd == -1)
exit_cleanup(RERR_SOCKETIO);
- }
-
- server_options(sargs,&sargc);
- sargs[sargc++] = ".";
+ ret = start_inband_exchange(user, path, fd, fd, argc);
- if (path && *path)
- sargs[sargc++] = path;
+ return ret < 0? ret : client_run(fd, fd, -1, argc, argv);
+}
- sargs[sargc] = NULL;
+int start_inband_exchange(char *user, char *path, int f_in, int f_out,
+ int argc)
+{
+ int i;
+ char *sargs[MAX_ARGS];
+ int sargc = 0;
+ char line[MAXPATHLEN];
+ char *p;
+
+ if (argc == 0 && !am_sender)
+ list_only |= 1;
+
+ if (*path == '/') {
+ rprintf(FERROR,
+ "ERROR: The remote path must start with a module name\n");
+ return -1;
+ }
+
+ if (!user)
+ user = getenv("USER");
+ if (!user)
+ user = getenv("LOGNAME");
- io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION);
+ io_printf(f_out, "@RSYNCD: %d\n", protocol_version);
- if (!read_line(fd, line, sizeof(line)-1)) {
+ if (!read_line(f_in, line, sizeof line - 1)) {
+ rprintf(FERROR, "rsync: did not see server greeting\n");
return -1;
}
- if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) {
+ if (sscanf(line,"@RSYNCD: %d", &remote_protocol) != 1) {
+ /* note that read_line strips of \n or \r */
+ rprintf(FERROR, "rsync: server sent \"%s\" rather than greeting\n",
+ line);
return -1;
}
+ if (protocol_version > remote_protocol)
+ protocol_version = remote_protocol;
+
+ if (list_only && protocol_version >= 29)
+ list_only |= 2;
+
+ /* set daemon_over_rsh to false since we need to build the
+ * true set of args passed through the rsh/ssh connection;
+ * this is a no-op for direct-socket-connection mode */
+ daemon_over_rsh = 0;
+ server_options(sargs, &sargc);
+
+ sargs[sargc++] = ".";
+
+ if (path && *path)
+ sargs[sargc++] = path;
+
+ sargs[sargc] = NULL;
+
+ if (verbose > 1)
+ print_child_argv(sargs);
p = strchr(path,'/');
if (p) *p = 0;
- io_printf(fd,"%s\n",path);
+ io_printf(f_out, "%s\n", path);
if (p) *p = '/';
/* Old servers may just drop the connection here,
rather than sending a proper EXIT command. Yuck. */
- kludge_around_eof = remote_version < 25;
+ kludge_around_eof = list_only && (protocol_version < 25);
while (1) {
- if (!read_line(fd, line, sizeof(line)-1)) {
+ if (!read_line(f_in, line, sizeof line - 1)) {
+ rprintf(FERROR, "rsync: didn't get server startup line\n");
return -1;
}
if (strncmp(line,"@RSYNCD: AUTHREQD ",18) == 0) {
- auth_client(fd, user, line+18);
+ auth_client(f_out, user, line+18);
continue;
}
- if (strcmp(line,"@RSYNCD: OK") == 0) break;
+ if (strcmp(line,"@RSYNCD: OK") == 0)
+ break;
- if (strcmp(line,"@RSYNCD: EXIT") == 0) exit(0);
+ if (strcmp(line,"@RSYNCD: EXIT") == 0) {
+ /* This is sent by recent versions of the
+ * server to terminate the listing of modules.
+ * We don't want to go on and transfer
+ * anything; just exit. */
+ exit(0);
+ }
- rprintf(FINFO,"%s\n", line);
+ if (strncmp(line, "@ERROR", 6) == 0) {
+ rprintf(FERROR, "%s\n", line);
+ /* This is always fatal; the server will now
+ * close the socket. */
+ return RERR_STARTCLIENT;
+ } else {
+ rprintf(FINFO,"%s\n", line);
+ }
}
kludge_around_eof = False;
- for (i=0;i<sargc;i++) {
- io_printf(fd,"%s\n", sargs[i]);
+ for (i = 0; i < sargc; i++) {
+ io_printf(f_out, "%s\n", sargs[i]);
}
- io_printf(fd,"\n");
+ io_printf(f_out, "\n");
- if (remote_version < 23) {
- if (remote_version == 22 || (remote_version > 17 && !am_sender))
- io_start_multiplex_in(fd);
+ if (protocol_version < 23) {
+ if (protocol_version == 22 || !am_sender)
+ io_start_multiplex_in();
}
- return client_run(fd, fd, -1, argc, argv);
+ return 0;
}
-static int rsync_module(int fd, int i)
+static int rsync_module(int f_in, int f_out, int i)
{
- int argc=0;
- char *argv[MAX_ARGS];
+ int argc = 0;
+ int maxargs;
+ char **argv;
char **argp;
char line[MAXPATHLEN];
uid_t uid = (uid_t)-2; /* canonically "nobody" */
gid_t gid = (gid_t)-2;
char *p;
- char *addr = client_addr(fd);
- char *host = client_name(fd);
+ char *addr = client_addr(f_in);
+ char *host = client_name(f_in);
char *name = lp_name(i);
int use_chroot = lp_use_chroot(i);
- int start_glob=0;
+ int start_glob = 0;
int ret;
- char *request=NULL;
- extern int am_sender;
- extern int remote_version;
- extern int am_root;
+ char *request = NULL;
if (!allow_access(addr, host, lp_hosts_allow(i), lp_hosts_deny(i))) {
- rprintf(FERROR,"rsync denied on module %s from %s (%s)\n",
- name, client_name(fd), client_addr(fd));
- io_printf(fd,"@ERROR: access denied to %s from %s (%s)\n",
- name, client_name(fd), client_addr(fd));
+ rprintf(FLOG, "rsync denied on module %s from %s (%s)\n",
+ name, host, addr);
+ if (!lp_list(i))
+ io_printf(f_out, "@ERROR: Unknown module '%s'\n", name);
+ else {
+ io_printf(f_out,
+ "@ERROR: access denied to %s from %s (%s)\n",
+ name, host, addr);
+ }
return -1;
}
+ if (am_daemon && am_server) {
+ rprintf(FLOG, "rsync allowed access on module %s from %s (%s)\n",
+ name, host, addr);
+ }
+
if (!claim_connection(lp_lock_file(i), lp_max_connections(i))) {
if (errno) {
- rprintf(FERROR,"failed to open lock file %s : %s\n",
- lp_lock_file(i), strerror(errno));
- io_printf(fd,"@ERROR: failed to open lock file %s : %s\n",
- lp_lock_file(i), strerror(errno));
+ rsyserr(FLOG, errno, "failed to open lock file %s",
+ lp_lock_file(i));
+ io_printf(f_out, "@ERROR: failed to open lock file %s\n",
+ lp_lock_file(i));
} else {
- rprintf(FERROR,"max connections (%d) reached\n",
+ rprintf(FLOG, "max connections (%d) reached\n",
+ lp_max_connections(i));
+ io_printf(f_out, "@ERROR: max connections (%d) reached -- try again later\n",
lp_max_connections(i));
- io_printf(fd,"@ERROR: max connections (%d) reached - try again later\n", lp_max_connections(i));
}
return -1;
}
-
- auth_user = auth_server(fd, i, addr, "@RSYNCD: AUTHREQD ");
+ auth_user = auth_server(f_in, f_out, i, addr, "@RSYNCD: AUTHREQD ");
if (!auth_user) {
- rprintf(FERROR,"auth failed on module %s from %s (%s)\n",
- name, client_name(fd), client_addr(fd));
- io_printf(fd,"@ERROR: auth failed on module %s\n",name);
- return -1;
+ rprintf(FLOG, "auth failed on module %s from %s (%s)\n",
+ name, host, addr);
+ io_printf(f_out, "@ERROR: auth failed on module %s\n", name);
+ return -1;
}
module_id = i;
- am_root = (getuid() == 0);
+ if (lp_read_only(i))
+ read_only = 1;
+
+ am_root = (MY_UID() == 0);
if (am_root) {
p = lp_uid(i);
if (!name_to_uid(p, &uid)) {
- if (!isdigit(*p)) {
- rprintf(FERROR,"Invalid uid %s\n", p);
- io_printf(fd,"@ERROR: invalid uid %s\n", p);
+ if (!isdigit(*(unsigned char *)p)) {
+ rprintf(FLOG, "Invalid uid %s\n", p);
+ io_printf(f_out, "@ERROR: invalid uid %s\n", p);
return -1;
- }
+ }
uid = atoi(p);
}
p = lp_gid(i);
if (!name_to_gid(p, &gid)) {
- if (!isdigit(*p)) {
- rprintf(FERROR,"Invalid gid %s\n", p);
- io_printf(fd,"@ERROR: invalid gid %s\n", p);
+ if (!isdigit(*(unsigned char *)p)) {
+ rprintf(FLOG, "Invalid gid %s\n", p);
+ io_printf(f_out, "@ERROR: invalid gid %s\n", p);
return -1;
- }
+ }
gid = atoi(p);
}
}
-
- /* TODO: If we're not root, but the configuration requests
- * that we change to some uid other than the current one, then
- * log a warning. */
- /* TODO: Perhaps take a list of gids, and make them into the
- * supplementary groups. */
+ /* TODO: If we're not root, but the configuration requests
+ * that we change to some uid other than the current one, then
+ * log a warning. */
+
+ /* TODO: Perhaps take a list of gids, and make them into the
+ * supplementary groups. */
+
+ if (use_chroot) {
+ module_dirlen = 0;
+ set_filter_dir("/", 1);
+ } else {
+ module_dirlen = strlen(lp_path(i));
+ set_filter_dir(lp_path(i), module_dirlen);
+ }
+
+ p = lp_filter(i);
+ add_filter(&server_filter_list, p,
+ XFLG_WORD_SPLIT | XFLG_ANCHORED2ABS);
p = lp_include_from(i);
- add_exclude_file(p, 1, 1);
+ add_filter_file(&server_filter_list, p,
+ XFLG_FATAL_ERRORS | XFLG_ANCHORED2ABS | XFLG_DEF_INCLUDE);
p = lp_include(i);
- add_include_line(p);
+ add_filter(&server_filter_list, p,
+ XFLG_WORD_SPLIT | XFLG_ANCHORED2ABS | XFLG_DEF_INCLUDE);
p = lp_exclude_from(i);
- add_exclude_file(p, 1, 0);
+ add_filter_file(&server_filter_list, p,
+ XFLG_FATAL_ERRORS | XFLG_ANCHORED2ABS | XFLG_DEF_EXCLUDE);
p = lp_exclude(i);
- add_exclude_line(p);
+ add_filter(&server_filter_list, p,
+ XFLG_WORD_SPLIT | XFLG_ANCHORED2ABS | XFLG_DEF_EXCLUDE);
log_init();
* in which case we fail.
*/
if (chroot(lp_path(i))) {
- rsyserr(FERROR, errno, "chroot %s failed", lp_path(i));
- io_printf(fd,"@ERROR: chroot failed\n");
+ rsyserr(FLOG, errno, "chroot %s failed", lp_path(i));
+ io_printf(f_out, "@ERROR: chroot failed\n");
return -1;
}
- if (!push_dir("/", 0)) {
- rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
- io_printf(fd,"@ERROR: chdir failed\n");
+ if (!push_dir("/")) {
+ rsyserr(FLOG, errno, "chdir %s failed\n", lp_path(i));
+ io_printf(f_out, "@ERROR: chdir failed\n");
return -1;
}
} else {
- if (!push_dir(lp_path(i), 0)) {
- rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
- io_printf(fd,"@ERROR: chdir failed\n");
+ if (!push_dir(lp_path(i))) {
+ rsyserr(FLOG, errno, "chdir %s failed\n", lp_path(i));
+ io_printf(f_out, "@ERROR: chdir failed\n");
return -1;
}
sanitize_paths = 1;
}
if (am_root) {
+ /* XXXX: You could argue that if the daemon is started
+ * by a non-root user and they explicitly specify a
+ * gid, then we should try to change to that gid --
+ * this could be possible if it's already in their
+ * supplementary groups. */
+
+ /* TODO: Perhaps we need to document that if rsyncd is
+ * started by somebody other than root it will inherit
+ * all their supplementary groups. */
+
if (setgid(gid)) {
- rsyserr(FERROR, errno, "setgid %d failed", (int) gid);
- io_printf(fd,"@ERROR: setgid failed\n");
+ rsyserr(FLOG, errno, "setgid %d failed", (int)gid);
+ io_printf(f_out, "@ERROR: setgid failed\n");
+ return -1;
+ }
+#if HAVE_SETGROUPS
+ /* Get rid of any supplementary groups this process
+ * might have inheristed. */
+ if (setgroups(1, &gid)) {
+ rsyserr(FLOG, errno, "setgroups failed");
+ io_printf(f_out, "@ERROR: setgroups failed\n");
return -1;
}
+#endif
if (setuid(uid)) {
- rsyserr(FERROR, errno, "setuid %d failed", (int) uid);
- io_printf(fd,"@ERROR: setuid failed\n");
+ rsyserr(FLOG, errno, "setuid %d failed", (int)uid);
+ io_printf(f_out, "@ERROR: setuid failed\n");
return -1;
}
- am_root = (getuid() == 0);
+ am_root = (MY_UID() == 0);
}
- io_printf(fd,"@RSYNCD: OK\n");
+ io_printf(f_out, "@RSYNCD: OK\n");
+ maxargs = MAX_ARGS;
+ if (!(argv = new_array(char *, maxargs)))
+ out_of_memory("rsync_module");
argv[argc++] = "rsyncd";
while (1) {
- if (!read_line(fd, line, sizeof(line)-1)) {
+ if (!read_line(f_in, line, sizeof line - 1))
return -1;
- }
- if (!*line) break;
+ if (!*line)
+ break;
p = line;
- argv[argc] = strdup(p);
- if (!argv[argc]) {
- return -1;
+ if (argc == maxargs) {
+ maxargs += MAX_ARGS;
+ if (!(argv = realloc_array(argv, char *, maxargs)))
+ out_of_memory("rsync_module");
}
+ if (!(argv[argc] = strdup(p)))
+ out_of_memory("rsync_module");
if (start_glob) {
if (start_glob == 1) {
request = strdup(p);
start_glob++;
}
- glob_expand(name, argv, &argc, MAX_ARGS);
- } else {
+ glob_expand(name, &argv, &argc, &maxargs);
+ } else
argc++;
- }
- if (strcmp(line,".") == 0) {
+ if (strcmp(line, ".") == 0)
start_glob = 1;
- }
-
- if (argc == MAX_ARGS) {
- return -1;
- }
- }
-
- if (sanitize_paths) {
- /*
- * Note that this is applied to all parameters, whether or not
- * they are filenames, but no other legal parameters contain
- * the forms that need to be sanitized so it doesn't hurt;
- * it is not known at this point which parameters are files
- * and which aren't.
- */
- for (i = 1; i < argc; i++) {
- sanitize_path(argv[i], NULL);
- }
}
- argp = argv;
+ verbose = 0; /* future verbosity is controlled by client options */
+ argp = argv;
ret = parse_arguments(&argc, (const char ***) &argp, 0);
+ if (filesfrom_fd == 0)
+ filesfrom_fd = f_in;
+
if (request) {
if (*auth_user) {
- rprintf(FINFO,"rsync %s %s from %s@%s (%s)\n",
- am_sender?"on":"to",
+ rprintf(FLOG, "rsync %s %s from %s@%s (%s)\n",
+ am_sender ? "on" : "to",
request, auth_user, host, addr);
} else {
- rprintf(FINFO,"rsync %s %s from %s (%s)\n",
- am_sender?"on":"to",
+ rprintf(FLOG, "rsync %s %s from %s (%s)\n",
+ am_sender ? "on" : "to",
request, host, addr);
}
free(request);
#ifndef DEBUG
/* don't allow the logs to be flooded too fast */
- if (verbose > 1) verbose = 1;
+ if (verbose > lp_max_verbosity())
+ verbose = lp_max_verbosity();
#endif
- if (remote_version < 23) {
- if (remote_version == 22 || (remote_version > 17 && am_sender))
- io_start_multiplex_out(fd);
+ if (protocol_version < 23
+ && (protocol_version == 22 || am_sender))
+ io_start_multiplex_out();
+ else if (!ret) {
+ /* We have to get I/O multiplexing started so that we can
+ * get the error back to the client. This means getting
+ * the protocol setup finished first in later versions. */
+ setup_protocol(f_out, f_in);
+ if (files_from && !am_sender && strcmp(files_from, "-") != 0)
+ write_byte(f_out, 0);
+ io_start_multiplex_out();
}
-
- /* For later protocol versions, we don't start multiplexing
- * until we've configured nonblocking in start_server. That
- * means we're in a sticky situation now: there's no way to
- * convey errors to the client. */
-
- /* FIXME: Hold off on reporting option processing errors until
- * we've set up nonblocking and multiplexed IO and can get the
- * message back to them. */
+
if (!ret) {
- option_error();
- exit_cleanup(RERR_UNSUPPORTED);
+ option_error();
+ msleep(400);
+ exit_cleanup(RERR_UNSUPPORTED);
}
if (lp_timeout(i)) {
- extern int io_timeout;
io_timeout = lp_timeout(i);
+ if (io_timeout < select_timeout)
+ select_timeout = io_timeout;
}
- start_server(fd, fd, argc, argp);
+ start_server(f_in, f_out, argc, argp);
return 0;
}
{
int n = lp_numservices();
int i;
- extern int remote_version;
- for (i=0;i<n;i++)
+ for (i = 0; i < n; i++) {
if (lp_list(i))
- io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
+ io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
+ }
- if (remote_version >= 25)
+ if (protocol_version >= 25)
io_printf(fd,"@RSYNCD: EXIT\n");
}
-/* this is called when a socket connection is established to a client
+/* this is called when a connection is established to a client
and we want to start talking. The setup of the system is done from
here */
-static int start_daemon(int fd)
+int start_daemon(int f_in, int f_out)
{
char line[200];
char *motd;
- int i = -1;
- extern char *config_file;
- extern int remote_version;
+ int i;
+
+ io_set_sock_fds(f_in, f_out);
- if (!lp_load(config_file, 0)) {
+ if (!lp_load(config_file, 0))
exit_cleanup(RERR_SYNTAX);
- }
- set_socket_options(fd,"SO_KEEPALIVE");
- set_socket_options(fd,lp_socket_options());
- set_nonblocking(fd);
+ log_init();
+
+ if (!am_server) {
+ set_socket_options(f_in, "SO_KEEPALIVE");
+ set_socket_options(f_in, lp_socket_options());
+ set_nonblocking(f_in);
+ }
- io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION);
+ io_printf(f_out, "@RSYNCD: %d\n", protocol_version);
motd = lp_motd_file();
if (motd && *motd) {
FILE *f = fopen(motd,"r");
while (f && !feof(f)) {
- int len = fread(line, 1, sizeof(line)-1, f);
+ int len = fread(line, 1, sizeof line - 1, f);
if (len > 0) {
line[len] = 0;
- io_printf(fd,"%s", line);
+ io_printf(f_out, "%s", line);
}
}
- if (f) fclose(f);
- io_printf(fd,"\n");
+ if (f)
+ fclose(f);
+ io_printf(f_out, "\n");
}
- if (!read_line(fd, line, sizeof(line)-1)) {
+ if (!read_line(f_in, line, sizeof line - 1))
return -1;
- }
- if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) {
- io_printf(fd,"@ERROR: protocol startup error\n");
+ if (sscanf(line,"@RSYNCD: %d", &remote_protocol) != 1) {
+ io_printf(f_out, "@ERROR: protocol startup error\n");
return -1;
- }
+ }
+ if (protocol_version > remote_protocol)
+ protocol_version = remote_protocol;
- while (i == -1) {
- line[0] = 0;
- if (!read_line(fd, line, sizeof(line)-1)) {
- return -1;
- }
+ line[0] = 0;
+ if (!read_line(f_in, line, sizeof line - 1))
+ return -1;
- if (!*line || strcmp(line,"#list")==0) {
- send_listing(fd);
- return -1;
- }
+ if (!*line || strcmp(line, "#list") == 0) {
+ send_listing(f_out);
+ return -1;
+ }
- if (*line == '#') {
- /* it's some sort of command that I don't understand */
- io_printf(fd,"@ERROR: Unknown command '%s'\n", line);
- return -1;
- }
+ if (*line == '#') {
+ /* it's some sort of command that I don't understand */
+ io_printf(f_out, "@ERROR: Unknown command '%s'\n", line);
+ return -1;
+ }
- i = lp_number(line);
- if (i == -1) {
- io_printf(fd,"@ERROR: Unknown module '%s'\n", line);
- return -1;
- }
+ if ((i = lp_number(line)) < 0) {
+ char *addr = client_addr(f_in);
+ char *host = client_name(f_in);
+ rprintf(FLOG, "unknown module '%s' tried from %s (%s)\n",
+ line, host, addr);
+ io_printf(f_out, "@ERROR: Unknown module '%s'\n", line);
+ return -1;
}
- return rsync_module(fd, i);
+ return rsync_module(f_in, f_out, i);
}
int daemon_main(void)
{
- extern char *config_file;
- extern int orig_umask;
char *pid_file;
if (is_a_socket(STDIN_FILENO)) {
int i;
/* we are running via inetd - close off stdout and
- stderr so that library functions (and getopt) don't
- try to use them. Redirect them to /dev/null */
- for (i=1;i<3;i++) {
- close(i);
+ * stderr so that library functions (and getopt) don't
+ * try to use them. Redirect them to /dev/null */
+ for (i = 1; i < 3; i++) {
+ close(i);
open("/dev/null", O_RDWR);
}
- return start_daemon(STDIN_FILENO);
+ return start_daemon(STDIN_FILENO, STDIN_FILENO);
}
- become_daemon();
+ if (!no_detach)
+ become_daemon();
- if (!lp_load(config_file, 1)) {
+ if (!lp_load(config_file, 1))
exit_cleanup(RERR_SYNTAX);
- }
+
+ if (rsync_port == 0 && (rsync_port = lp_rsync_port()) == 0)
+ rsync_port = RSYNC_PORT;
+ if (bind_address == NULL && *lp_bind_address())
+ bind_address = lp_bind_address();
log_init();
- rprintf(FINFO, "rsyncd version %s starting, listening on port %d\n",
- RSYNC_VERSION,
- rsync_port);
- /* TODO: If listening on a particular address, then show that
- * address too. */
+ rprintf(FLOG, "rsyncd version %s starting, listening on port %d\n",
+ RSYNC_VERSION, rsync_port);
+ /* TODO: If listening on a particular address, then show that
+ * address too. In fact, why not just do inet_ntop on the
+ * local address??? */
if (((pid_file = lp_pid_file()) != NULL) && (*pid_file != '\0')) {
char pidbuf[16];
int fd;
- int pid = (int) getpid();
+ pid_t pid = getpid();
cleanup_set_pid(pid);
if ((fd = do_open(lp_pid_file(), O_WRONLY|O_CREAT|O_TRUNC,
0666 & ~orig_umask)) == -1) {
- cleanup_set_pid(0);
- rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
- exit_cleanup(RERR_FILEIO);
+ cleanup_set_pid(0);
+ rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
+ exit_cleanup(RERR_FILEIO);
}
- snprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
+ snprintf(pidbuf, sizeof pidbuf, "%ld\n", (long)pid);
write(fd, pidbuf, strlen(pidbuf));
close(fd);
}
start_accept_loop(rsync_port, start_daemon);
return -1;
}
-
git.samba.org / rsync.git / blobdiff