Further modifications to the copyright comment section.
[rsync/rsync.git] / clientserver.c
index 8c42631..786c4be 100644 (file)
@@ -3,12 +3,11 @@
  *
  * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
  * Copyright (C) 2001-2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2002, 2003, 2004, 2005, 2006 Wayne Davison
+ * Copyright (C) 2002-2007 Wayne Davison
  *
  * 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.
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 extern int verbose;
 extern int quiet;
+extern int output_motd;
 extern int list_only;
 extern int am_sender;
 extern int am_server;
 extern int am_daemon;
 extern int am_root;
 extern int rsync_port;
+extern int ignore_errors;
 extern int kluge_around_eof;
 extern int daemon_over_rsh;
 extern int sanitize_paths;
@@ -109,7 +110,7 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
        return ret ? ret : client_run(fd, fd, -1, argc, argv);
 }
 
-int start_inband_exchange(char *user, char *path, int f_in, int f_out,
+int start_inband_exchange(const char *user, char *path, int f_in, int f_out,
                          int argc)
 {
        int i;
@@ -205,7 +206,10 @@ int start_inband_exchange(char *user, char *path, int f_in, int f_out,
                        return -1;
                }
 
-               rprintf(FINFO, "%s\n", line);
+               /* This might be a MOTD line or a module listing, but there is
+                * no way to differentiate it.  The manpage mentions this. */
+               if (output_motd)
+                       rprintf(FINFO, "%s\n", line);
        }
        kluge_around_eof = 0;
 
@@ -240,7 +244,9 @@ static char *finish_pre_exec(pid_t pid, int fd, char *request,
        if (wait_process(pid, &status, 0) < 0
         || !WIFEXITED(status) || WEXITSTATUS(status) != 0) {
                char *e;
-               if (asprintf(&e, "pre-xfer exec returned failure (%d)\n", status) < 0)
+               if (asprintf(&e, "pre-xfer exec returned failure (%d)%s%s\n",
+                            status, status < 0 ? ": " : "",
+                            status < 0 ? strerror(errno) : "") < 0)
                        out_of_memory("finish_pre_exec");
                return e;
        }
@@ -324,21 +330,19 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
        if (lp_read_only(i))
                read_only = 1;
 
-       if (lp_transfer_logging(i)) {
+       if (lp_transfer_logging(i) && !logfile_format)
                logfile_format = lp_log_format(i);
-               if (log_format_has(logfile_format, 'i'))
-                       logfile_format_has_i = 1;
-               if (logfile_format_has_i
-                   || log_format_has(logfile_format, 'o'))
-                       logfile_format_has_o_or_i = 1;
-       }
+       if (log_format_has(logfile_format, 'i'))
+               logfile_format_has_i = 1;
+       if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
+               logfile_format_has_o_or_i = 1;
 
        am_root = (MY_UID() == 0);
 
        if (am_root) {
                p = lp_uid(i);
                if (!name_to_uid(p, &uid)) {
-                       if (!isdigit(*(unsigned char *)p)) {
+                       if (!isDigit(p)) {
                                rprintf(FLOG, "Invalid uid %s\n", p);
                                io_printf(f_out, "@ERROR: invalid uid %s\n", p);
                                return -1;
@@ -348,7 +352,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
 
                p = lp_gid(i);
                if (!name_to_gid(p, &gid)) {
-                       if (!isdigit(*(unsigned char *)p)) {
+                       if (!isDigit(p)) {
                                rprintf(FLOG, "Invalid gid %s\n", p);
                                io_printf(f_out, "@ERROR: invalid gid %s\n", p);
                                return -1;
@@ -391,7 +395,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
        parse_rule(&server_filter_list, p, MATCHFLG_WORD_SPLIT,
                   XFLG_ABS_IF_SLASH | XFLG_OLD_PREFIXES);
 
-       log_init();
+       log_init(1);
 
 #ifdef HAVE_PUTENV
        if (*lp_prexfer_exec(i) || *lp_postxfer_exec(i)) {
@@ -420,17 +424,18 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                                return -1;
                        }
                        if (pid) {
-                               char *ret1, *ret2;
+                               if (asprintf(&p, "RSYNC_PID=%ld", (long)pid) > 0)
+                                       putenv(p);
                                if (wait_process(pid, &status, 0) < 0)
                                        status = -1;
-                               if (asprintf(&ret1, "RSYNC_RAW_STATUS=%d", status) > 0)
-                                       putenv(ret1);
+                               if (asprintf(&p, "RSYNC_RAW_STATUS=%d", status) > 0)
+                                       putenv(p);
                                if (WIFEXITED(status))
                                        status = WEXITSTATUS(status);
                                else
                                        status = -1;
-                               if (asprintf(&ret2, "RSYNC_EXIT_STATUS=%d", status) > 0)
-                                       putenv(ret2);
+                               if (asprintf(&p, "RSYNC_EXIT_STATUS=%d", status) > 0)
+                                       putenv(p);
                                system(lp_postxfer_exec(i));
                                _exit(status);
                        }
@@ -440,6 +445,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                 * send us the user's request via a pipe. */
                if (*lp_prexfer_exec(i)) {
                        int fds[2];
+                       if (asprintf(&p, "RSYNC_PID=%ld", (long)getpid()) > 0)
+                               putenv(p);
                        if (pipe(fds) < 0 || (pre_exec_pid = fork()) < 0) {
                                rsyserr(FLOG, errno, "pre-xfer exec preparation failed");
                                io_printf(f_out, "@ERROR: pre-xfer exec preparation failed\n");
@@ -453,9 +460,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                                len = read_arg_from_pipe(fds[0], buf, BIGPATHBUFLEN);
                                if (len <= 0)
                                        _exit(1);
-                               if (asprintf(&p, "RSYNC_REQUEST=%s", buf) < 0)
-                                       out_of_memory("rsync_module");
-                               putenv(p);
+                               if (asprintf(&p, "RSYNC_REQUEST=%s", buf) > 0)
+                                       putenv(p);
                                for (j = 0; ; j++) {
                                        len = read_arg_from_pipe(fds[0], buf,
                                                                 BIGPATHBUFLEN);
@@ -464,9 +470,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                                                        break;
                                                _exit(1);
                                        }
-                                       if (asprintf(&p, "RSYNC_ARG%d=%s", j, buf) < 0)
-                                               out_of_memory("rsync_module");
-                                       putenv(p);
+                                       if (asprintf(&p, "RSYNC_ARG%d=%s", j, buf) > 0)
+                                               putenv(p);
                                }
                                close(fds[0]);
                                close(STDIN_FILENO);
@@ -504,7 +509,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                        return -1;
                }
 
-               if (!push_dir("/")) {
+               if (!push_dir("/", 0)) {
                        rsyserr(FLOG, errno, "chdir %s failed\n",
                                lp_path(i));
                        io_printf(f_out, "@ERROR: chdir failed\n");
@@ -512,7 +517,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                }
 
        } else {
-               if (!push_dir(lp_path(i))) {
+               if (!push_dir(lp_path(i), 0)) {
                        rsyserr(FLOG, errno, "chdir %s failed\n",
                                lp_path(i));
                        io_printf(f_out, "@ERROR: chdir failed\n");
@@ -621,6 +626,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
        verbose = 0; /* future verbosity is controlled by client options */
        ret = parse_arguments(&argc, (const char ***) &argv, 0);
        quiet = 0; /* Don't let someone try to be tricky. */
+       if (lp_ignore_errors(module_id))
+               ignore_errors = 1;
 
        if (filesfrom_fd == 0)
                filesfrom_fd = f_in;
@@ -675,7 +682,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
 
        if (!ret || err_msg) {
                if (err_msg)
-                       rprintf(FERROR, err_msg);
+                       rwrite(FERROR, err_msg, strlen(err_msg));
                else
                        option_error();
                msleep(400);
@@ -838,7 +845,7 @@ int daemon_main(void)
        if (bind_address == NULL && *lp_bind_address())
                bind_address = lp_bind_address();
 
-       log_init();
+       log_init(0);
 
        rprintf(FLOG, "rsyncd version %s starting, listening on port %d\n",
                RSYNC_VERSION, rsync_port);