Changed human_num() to big_num() with an extra arg so that it can
[rsync/rsync.git] / main.c
diff --git a/main.c b/main.c
index d30350d..7344086 100644 (file)
--- a/main.c
+++ b/main.c
@@ -4,7 +4,7 @@
  * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org>
  * Copyright (C) 1996 Paul Mackerras
  * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2003-2007 Wayne Davison
+ * Copyright (C) 2003-2008 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
  */
 
 #include "rsync.h"
+#include "ifuncs.h"
 #include "io.h"
 #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H
 #include <locale.h>
 #endif
 
-extern int verbose;
 extern int dry_run;
 extern int list_only;
 extern int am_root;
@@ -36,20 +36,23 @@ extern int am_generator;
 extern int am_daemon;
 extern int inc_recurse;
 extern int blocking_io;
+extern int human_readable;
 extern int remove_source_files;
-extern int daemon_over_rsh;
+extern int output_needs_newline;
 extern int need_messages_from_generator;
 extern int kluge_around_eof;
-extern int do_stats;
-extern int log_got_error;
+extern int got_xfer_error;
 extern int module_id;
 extern int copy_links;
 extern int copy_dirlinks;
+extern int copy_unsafe_links;
 extern int keep_dirlinks;
 extern int preserve_hard_links;
 extern int protocol_version;
 extern int file_total;
 extern int recurse;
+extern int xfer_dirs;
+extern int protect_args;
 extern int relative_paths;
 extern int sanitize_paths;
 extern int curr_dir_depth;
@@ -61,20 +64,25 @@ extern int read_batch;
 extern int write_batch;
 extern int batch_fd;
 extern int filesfrom_fd;
+extern int connect_timeout;
 extern pid_t cleanup_child_pid;
+extern unsigned int module_dirlen;
 extern struct stats stats;
 extern char *filesfrom_host;
 extern char *partial_dir;
+extern char *dest_option;
 extern char *basis_dir[];
 extern char *rsync_path;
 extern char *shell_cmd;
 extern char *batch_name;
 extern char *password_file;
 extern char curr_dir[MAXPATHLEN];
-extern struct filter_list_struct server_filter_list;
+extern struct file_list *first_flist;
+extern struct filter_list_struct daemon_filter_list;
 
+uid_t our_uid;
 int local_server = 0;
-int new_root_dir = 0;
+int daemon_over_rsh = 0;
 mode_t orig_umask = 0;
 int batch_gen_fd = -1;
 
@@ -175,7 +183,7 @@ static void handle_stats(int f)
        total_read = stats.total_read;
        total_written = stats.total_written;
 
-       if (do_stats && verbose > 1) {
+       if (INFO_GTE(STATS, 3)) {
                /* These come out from every process */
                show_malloc_stats();
                show_flist_stats();
@@ -231,21 +239,21 @@ static void handle_stats(int f)
 
 static void output_summary(void)
 {
-       if (do_stats) {
+       if (INFO_GTE(STATS, 2)) {
                rprintf(FCLIENT, "\n");
                rprintf(FINFO,"Number of files: %d\n", stats.num_files);
                rprintf(FINFO,"Number of files transferred: %d\n",
                        stats.num_transferred_files);
                rprintf(FINFO,"Total file size: %s bytes\n",
-                       human_num(stats.total_size));
+                       big_num(stats.total_size, human_readable));
                rprintf(FINFO,"Total transferred file size: %s bytes\n",
-                       human_num(stats.total_transferred_size));
+                       big_num(stats.total_transferred_size, human_readable));
                rprintf(FINFO,"Literal data: %s bytes\n",
-                       human_num(stats.literal_data));
+                       big_num(stats.literal_data, human_readable));
                rprintf(FINFO,"Matched data: %s bytes\n",
-                       human_num(stats.matched_data));
+                       big_num(stats.matched_data, human_readable));
                rprintf(FINFO,"File list size: %s\n",
-                       human_num(stats.flist_size));
+                       big_num(stats.flist_size, human_readable));
                if (stats.flist_buildtime) {
                        rprintf(FINFO,
                                "File list generation time: %.3f seconds\n",
@@ -255,20 +263,22 @@ static void output_summary(void)
                                (double)stats.flist_xfertime / 1000);
                }
                rprintf(FINFO,"Total bytes sent: %s\n",
-                       human_num(total_written));
+                       big_num(total_written, human_readable));
                rprintf(FINFO,"Total bytes received: %s\n",
-                       human_num(total_read));
+                       big_num(total_read, human_readable));
        }
 
-       if (verbose || do_stats) {
+       if (INFO_GTE(STATS, 1)) {
                rprintf(FCLIENT, "\n");
                rprintf(FINFO,
                        "sent %s bytes  received %s bytes  %s bytes/sec\n",
-                       human_num(total_written), human_num(total_read),
+                       big_num(total_written, human_readable),
+                       big_num(total_read, human_readable),
                        human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2));
-               rprintf(FINFO, "total size is %s  speedup is %.2f\n",
-                       human_num(stats.total_size),
-                       (double)stats.total_size / (total_written+total_read));
+               rprintf(FINFO, "total size is %s  speedup is %.2f%s\n",
+                       big_num(stats.total_size, human_readable),
+                       (double)stats.total_size / (total_written+total_read),
+                       write_batch < 0 ? " (BATCH ONLY)" : dry_run ? " (DRY RUN)" : "");
        }
 
        fflush(stdout);
@@ -317,13 +327,12 @@ static void show_malloc_stats(void)
 
 
 /* Start the remote shell.   cmd may be NULL to use the default. */
-static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
-                   int *f_in, int *f_out)
+static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, int remote_argc,
+                   int *f_in_p, int *f_out_p)
 {
        int i, argc = 0;
        char *args[MAX_ARGS];
-       pid_t ret;
-       char *dir = NULL;
+       pid_t pid;
        int dash_l_set = 0;
 
        if (!read_batch && !local_server) {
@@ -333,7 +342,7 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
                        cmd = rsh_env;
                if (!cmd)
                        cmd = RSYNC_RSH;
-               cmd = strdup(cmd);
+               cmd = strdup(cmd); /* MEMORY LEAK */
                if (!cmd)
                        goto oom;
 
@@ -341,10 +350,8 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
                        if (*f == ' ')
                                continue;
                        /* Comparison leaves rooms for server_options(). */
-                       if (argc >= MAX_ARGS - MAX_SERVER_ARGS) {
-                               rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
-                               exit_cleanup(RERR_SYNTAX);
-                       }
+                       if (argc >= MAX_ARGS - MAX_SERVER_ARGS)
+                               goto arg_overflow;
                        args[argc++] = t;
                        while (*f != ' ' || in_quote) {
                                if (!*f) {
@@ -408,20 +415,27 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
 
                server_options(args,&argc);
 
-               if (argc >= MAX_ARGS - 2) {
-                       rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
-                       exit_cleanup(RERR_SYNTAX);
-               }
+               if (argc >= MAX_ARGS - 2)
+                       goto arg_overflow;
        }
 
        args[argc++] = ".";
 
-       if (!daemon_over_rsh && path && *path)
-               args[argc++] = path;
+       if (!daemon_over_rsh) {
+               while (remote_argc > 0) {
+                       if (argc >= MAX_ARGS - 1) {
+                         arg_overflow:
+                               rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+                       args[argc++] = *remote_argv++;
+                       remote_argc--;
+               }
+       }
 
        args[argc] = NULL;
 
-       if (verbose > 3) {
+       if (DEBUG_GTE(CMD, 2)) {
                for (i = 0; i < argc; i++)
                        rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]);
                rprintf(FCLIENT, "\n");
@@ -429,27 +443,38 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
 
        if (read_batch) {
                int from_gen_pipe[2];
+               set_allow_inc_recurse();
                if (fd_pair(from_gen_pipe) < 0) {
                        rsyserr(FERROR, errno, "pipe");
                        exit_cleanup(RERR_IPC);
                }
                batch_gen_fd = from_gen_pipe[0];
-               *f_out = from_gen_pipe[1];
-               *f_in = batch_fd;
-               ret = -1; /* no child pid */
+               *f_out_p = from_gen_pipe[1];
+               *f_in_p = batch_fd;
+               pid = (pid_t)-1; /* no child pid */
+#ifdef ICONV_CONST
+               setup_iconv();
+#endif
        } else if (local_server) {
                /* If the user didn't request --[no-]whole-file, force
                 * it on, but only if we're not batch processing. */
                if (whole_file < 0 && !write_batch)
                        whole_file = 1;
-               ret = local_child(argc, args, f_in, f_out, child_main);
-       } else
-               ret = piped_child(args,f_in,f_out);
-
-       if (dir)
-               free(dir);
+               set_allow_inc_recurse();
+               pid = local_child(argc, args, f_in_p, f_out_p, child_main);
+#ifdef ICONV_CONST
+               setup_iconv();
+#endif
+       } else {
+               pid = piped_child(args, f_in_p, f_out_p);
+#ifdef ICONV_CONST
+               setup_iconv();
+#endif
+               if (protect_args)
+                       send_protected_args(*f_out_p, args);
+       }
 
-       return ret;
+       return pid;
 
   oom:
        out_of_memory("do_cmd");
@@ -475,7 +500,7 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
        int statret;
        char *cp;
 
-       if (verbose > 2) {
+       if (DEBUG_GTE(RECV, 1)) {
                rprintf(FINFO, "get_local_name count=%d %s\n",
                        file_total, NS(dest_path));
        }
@@ -483,12 +508,29 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
        if (!dest_path || list_only)
                return NULL;
 
+       if (daemon_filter_list.head) {
+               char *slash = strrchr(dest_path, '/');
+               if (slash && (slash[1] == '\0' || (slash[1] == '.' && slash[2] == '\0')))
+                       *slash = '\0';
+               else
+                       slash = NULL;
+               if ((*dest_path != '.' || dest_path[1] != '\0')
+                && (check_filter(&daemon_filter_list, FLOG, dest_path, 0) < 0
+                 || check_filter(&daemon_filter_list, FLOG, dest_path, 1) < 0)) {
+                       rprintf(FERROR, "skipping daemon-excluded destination \"%s\"\n",
+                               dest_path);
+                       exit_cleanup(RERR_FILESELECT);
+               }
+               if (slash)
+                       *slash = '/';
+       }
+
        /* See what currently exists at the destination. */
        if ((statret = do_stat(dest_path, &st)) == 0) {
                /* If the destination is a dir, enter it and use mode 1. */
                if (S_ISDIR(st.st_mode)) {
-                       if (!push_dir(dest_path, 0)) {
-                               rsyserr(FERROR, errno, "push_dir#1 %s failed",
+                       if (!change_dir(dest_path, CD_NORMAL)) {
+                               rsyserr(FERROR, errno, "change_dir#1 %s failed",
                                        full_fname(dest_path));
                                exit_cleanup(RERR_FILESELECT);
                        }
@@ -535,9 +577,11 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
                        exit_cleanup(RERR_FILEIO);
                }
 
-               new_root_dir = 1;
+               if (flist->high >= flist->low
+                && strcmp(flist->files[flist->low]->basename, ".") == 0)
+                       flist->files[0]->flags |= FLAG_DIR_CREATED;
 
-               if (verbose)
+               if (INFO_GTE(NAME, 1))
                        rprintf(FINFO, "created directory %s\n", dest_path);
 
                if (dry_run) {
@@ -545,8 +589,8 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
                        dry_run++;
                }
 
-               if (!push_dir(dest_path, dry_run > 1)) {
-                       rsyserr(FERROR, errno, "push_dir#2 %s failed",
+               if (!change_dir(dest_path, dry_run > 1 ? CD_SKIP_CHDIR : CD_NORMAL)) {
+                       rsyserr(FERROR, errno, "change_dir#2 %s failed",
                                full_fname(dest_path));
                        exit_cleanup(RERR_FILESELECT);
                }
@@ -565,8 +609,8 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
                dest_path = "/";
 
        *cp = '\0';
-       if (!push_dir(dest_path, 0)) {
-               rsyserr(FERROR, errno, "push_dir#3 %s failed",
+       if (!change_dir(dest_path, CD_NORMAL)) {
+               rsyserr(FERROR, errno, "change_dir#3 %s failed",
                        full_fname(dest_path));
                exit_cleanup(RERR_FILESELECT);
        }
@@ -575,36 +619,41 @@ static char *get_local_name(struct file_list *flist, char *dest_path)
        return cp + 1;
 }
 
-/* Call this if the destination dir (which is assumed to be in curr_dir)
- * does not yet exist and we can't create it due to being in dry-run
- * mode.  We'll fix dirs that can be relative to the non-existent dir. */
-static void fix_basis_dirs(void)
+/* This function checks on our alternate-basis directories.  If we're in
+ * dry-run mode and the destination dir does not yet exist, we'll try to
+ * tweak any dest-relative paths to make them work for a dry-run (the
+ * destination dir must be in curr_dir[] when this function is called).
+ * We also warn about any arg that is non-existent or not a directory. */
+static void check_alt_basis_dirs(void)
 {
-       char **dir, *new, *slash;
-       int len;
-
-       if (dry_run <= 1)
-               return;
-
-       slash = strrchr(curr_dir, '/');
-
-       for (dir = basis_dir; *dir; dir++) {
-               if (**dir == '/')
-                       continue;
-               len = curr_dir_len + 1 + strlen(*dir) + 1;
-               if (!(new = new_array(char, len)))
-                       out_of_memory("fix_basis_dirs");
-               if (slash && strncmp(*dir, "../", 3) == 0) {
-                   /* We want to remove only one leading "../" prefix for
-                    * the directory we couldn't create in dry-run mode:
-                    * this ensures that any other ".." references get
-                    * evaluated the same as they would for a live copy. */
-                   *slash = '\0';
-                   pathjoin(new, len, curr_dir, *dir + 3);
-                   *slash = '/';
-               } else
-                   pathjoin(new, len, curr_dir, *dir);
-               *dir = new;
+       STRUCT_STAT st;
+       char **dir_p, *slash = strrchr(curr_dir, '/');
+
+       for (dir_p = basis_dir; *dir_p; dir_p++) {
+               if (dry_run > 1 && **dir_p != '/') {
+                       int len = curr_dir_len + 1 + strlen(*dir_p) + 1;
+                       char *new = new_array(char, len);
+                       if (!new)
+                               out_of_memory("check_alt_basis_dirs");
+                       if (slash && strncmp(*dir_p, "../", 3) == 0) {
+                           /* We want to remove only one leading "../" prefix for
+                            * the directory we couldn't create in dry-run mode:
+                            * this ensures that any other ".." references get
+                            * evaluated the same as they would for a live copy. */
+                           *slash = '\0';
+                           pathjoin(new, len, curr_dir, *dir_p + 3);
+                           *slash = '/';
+                       } else
+                           pathjoin(new, len, curr_dir, *dir_p);
+                       *dir_p = new;
+               }
+               if (do_stat(*dir_p, &st) < 0) {
+                       rprintf(FWARNING, "%s arg does not exist: %s\n",
+                               dest_option, *dir_p);
+               } else if (!S_ISDIR(st.st_mode)) {
+                       rprintf(FWARNING, "%s arg is not a dir: %s\n",
+                               dest_option, *dir_p);
+               }
        }
 }
 
@@ -634,7 +683,7 @@ static void do_server_sender(int f_in, int f_out, int argc, char *argv[])
        struct file_list *flist;
        char *dir = argv[0];
 
-       if (verbose > 2) {
+       if (DEBUG_GTE(SEND, 1)) {
                rprintf(FINFO, "server_sender starting pid=%ld\n",
                        (long)getpid());
        }
@@ -653,8 +702,8 @@ static void do_server_sender(int f_in, int f_out, int argc, char *argv[])
        }
 
        if (!relative_paths) {
-               if (!push_dir(dir, 0)) {
-                       rsyserr(FERROR, errno, "push_dir#3 %s failed",
+               if (!change_dir(dir, CD_NORMAL)) {
+                       rsyserr(FERROR, errno, "change_dir#3 %s failed",
                                full_fname(dir));
                        exit_cleanup(RERR_FILESELECT);
                }
@@ -662,7 +711,7 @@ static void do_server_sender(int f_in, int f_out, int argc, char *argv[])
        argc--;
        argv++;
 
-       if (argc == 0 && (recurse || list_only)) {
+       if (argc == 0 && (recurse || xfer_dirs || list_only)) {
                argc = 1;
                argv--;
                argv[0] = ".";
@@ -692,11 +741,11 @@ static int do_recv(int f_in, int f_out, char *local_name)
 
        /* The receiving side mustn't obey this, or an existing symlink that
         * points to an identical file won't be replaced by the referent. */
-       copy_links = copy_dirlinks = 0;
+       copy_links = copy_dirlinks = copy_unsafe_links = 0;
 
 #ifdef SUPPORT_HARD_LINKS
-       if (preserve_hard_links)
-               match_hard_links();
+       if (preserve_hard_links && !inc_recurse)
+               match_hard_links(first_flist);
 #endif
 
        if (fd_pair(error_pipe) < 0) {
@@ -727,6 +776,11 @@ static int do_recv(int f_in, int f_out, char *local_name)
                io_flush(FULL_FLUSH);
                handle_stats(f_in);
 
+               if (output_needs_newline) {
+                       fputc('\n', stdout);
+                       output_needs_newline = 0;
+               }
+
                send_msg(MSG_DONE, "", 1, 0);
                write_varlong(error_pipe[1], stats.total_read, 3);
                io_flush(FULL_FLUSH);
@@ -771,6 +825,14 @@ static int do_recv(int f_in, int f_out, char *local_name)
        set_msg_fd_in(error_pipe[0]);
        io_start_buffering_in(error_pipe[0]);
 
+#ifdef SUPPORT_HARD_LINKS
+       if (preserve_hard_links && inc_recurse) {
+               struct file_list *flist;
+               for (flist = first_flist; flist; flist = flist->next)
+                       match_hard_links(flist);
+       }
+#endif
+
        generate_files(f_out, local_name);
 
        handle_stats(-1);
@@ -792,16 +854,17 @@ static void do_server_recv(int f_in, int f_out, int argc, char *argv[])
        int exit_code;
        struct file_list *flist;
        char *local_name = NULL;
-       char *dir = NULL;
-       int save_verbose = verbose;
+       int negated_levels;
 
        if (filesfrom_fd >= 0) {
                /* We can't mix messages with files-from data on the socket,
-                * so temporarily turn off verbose messages. */
-               verbose = 0;
-       }
+                * so temporarily turn off info/debug messages. */
+               negate_output_levels();
+               negated_levels = 1;
+       } else
+               negated_levels = 0;
 
-       if (verbose > 2) {
+       if (DEBUG_GTE(RECV, 1)) {
                rprintf(FINFO, "server_recv(%d) starting pid=%ld\n",
                        argc, (long)getpid());
        }
@@ -813,11 +876,11 @@ static void do_server_recv(int f_in, int f_out, int argc, char *argv[])
        }
 
        if (argc > 0) {
-               dir = argv[0];
+               char *dir = argv[0];
                argc--;
                argv++;
-               if (!am_daemon && !push_dir(dir, 0)) {
-                       rsyserr(FERROR, errno, "push_dir#4 %s failed",
+               if (!am_daemon && !change_dir(dir, CD_NORMAL)) {
+                       rsyserr(FERROR, errno, "change_dir#4 %s failed",
                                full_fname(dir));
                        exit_cleanup(RERR_FILESELECT);
                }
@@ -846,7 +909,9 @@ static void do_server_recv(int f_in, int f_out, int argc, char *argv[])
        }
        if (inc_recurse && file_total == 1)
                recv_additional_file_list(f_in);
-       verbose = save_verbose;
+
+       if (negated_levels)
+               negate_output_levels();
 
        if (argc > 0)
                local_name = get_local_name(flist,argv[0]);
@@ -854,26 +919,27 @@ static void do_server_recv(int f_in, int f_out, int argc, char *argv[])
        /* Now that we know what our destination directory turned out to be,
         * we can sanitize the --link-/copy-/compare-dest args correctly. */
        if (sanitize_paths) {
-               char **dir;
-               for (dir = basis_dir; *dir; dir++) {
-                       *dir = sanitize_path(NULL, *dir, NULL, curr_dir_depth, NULL);
-               }
-               if (partial_dir) {
-                       partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, NULL);
-               }
+               char **dir_p;
+               for (dir_p = basis_dir; *dir_p; dir_p++)
+                       *dir_p = sanitize_path(NULL, *dir_p, NULL, curr_dir_depth, SP_DEFAULT);
+               if (partial_dir)
+                       partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, SP_DEFAULT);
        }
-       fix_basis_dirs();
+       check_alt_basis_dirs();
 
-       if (server_filter_list.head) {
-               char **dir;
-               struct filter_list_struct *elp = &server_filter_list;
+       if (daemon_filter_list.head) {
+               char **dir_p;
+               struct filter_list_struct *elp = &daemon_filter_list;
 
-               for (dir = basis_dir; *dir; dir++) {
-                       if (check_filter(elp, *dir, 1) < 0)
+               for (dir_p = basis_dir; *dir_p; dir_p++) {
+                       char *dir = *dir_p;
+                       if (*dir == '/')
+                               dir += module_dirlen;
+                       if (check_filter(elp, FLOG, dir, 1) < 0)
                                goto options_rejected;
                }
                if (partial_dir && *partial_dir == '/'
-                && check_filter(elp, partial_dir, 1) < 0) {
+                && check_filter(elp, FLOG, partial_dir + module_dirlen, 1) < 0) {
                    options_rejected:
                        rprintf(FERROR,
                                "Your options have been rejected by the server.\n");
@@ -900,9 +966,6 @@ void start_server(int f_in, int f_out, int argc, char *argv[])
 
        io_set_sock_fds(f_in, f_out);
        setup_protocol(f_out, f_in);
-#ifdef ICONV_CONST
-       setup_iconv();
-#endif
 
        if (protocol_version >= 23)
                io_start_multiplex_out();
@@ -937,9 +1000,6 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
 
        io_set_sock_fds(f_in, f_out);
        setup_protocol(f_out,f_in);
-#ifdef ICONV_CONST
-       setup_iconv();
-#endif
 
        /* We set our stderr file handle to blocking because ssh might have
         * set it to non-blocking.  This can be particularly troublesome if
@@ -967,7 +1027,7 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
                        start_write_batch(f_out);
                flist = send_file_list(f_out, argc, argv);
                set_msg_fd_in(-1);
-               if (verbose > 3)
+               if (DEBUG_GTE(FLIST, 3))
                        rprintf(FINFO,"file list sent\n");
 
                if (protocol_version >= 23)
@@ -980,7 +1040,7 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
                if (protocol_version >= 24)
                        read_final_goodbye(f_in);
                if (pid != -1) {
-                       if (verbose > 3)
+                       if (DEBUG_GTE(EXIT, 2))
                                rprintf(FINFO,"client_run waiting on %d\n", (int) pid);
                        io_flush(FULL_FLUSH);
                        wait_process_with_flush(pid, &exit_code);
@@ -997,9 +1057,6 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
                        io_start_multiplex_out();
        }
 
-       if (argc == 0)
-               list_only |= 1;
-
        send_filter_list(read_batch ? -1 : f_out);
 
        if (filesfrom_fd >= 0) {
@@ -1016,7 +1073,7 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
        if (flist && flist->used > 0) {
                local_name = get_local_name(flist, argv[0]);
 
-               fix_basis_dirs();
+               check_alt_basis_dirs();
 
                exit_code2 = do_recv(f_in, f_out, local_name);
        } else {
@@ -1025,7 +1082,7 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
        }
 
        if (pid != -1) {
-               if (verbose > 3)
+               if (DEBUG_GTE(RECV, 1))
                        rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid);
                io_flush(FULL_FLUSH);
                wait_process_with_flush(pid, &exit_code);
@@ -1060,66 +1117,67 @@ static int copy_argv(char *argv[])
  **/
 static int start_client(int argc, char *argv[])
 {
-       char *p;
-       char *shell_machine = NULL;
-       char *shell_path = NULL;
-       char *shell_user = NULL;
+       char *p, *shell_machine = NULL, *shell_user = NULL;
+       char **remote_argv;
+       int remote_argc;
+       int f_in, f_out;
        int ret;
        pid_t pid;
-       int f_in,f_out;
-       int rc;
 
        /* Don't clobber argv[] so that ps(1) can still show the right
         * command line. */
-       if ((rc = copy_argv(argv)))
-               return rc;
+       if ((ret = copy_argv(argv)) != 0)
+               return ret;
 
        if (!read_batch) { /* for read_batch, NO source is specified */
-               shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port);
-               if (shell_path) { /* source is remote */
-                       char *dummy1;
-                       int dummy2;
-                       if (--argc
-                        && check_for_hostspec(argv[argc], &dummy1, &dummy2)) {
+               char *path = check_for_hostspec(argv[0], &shell_machine, &rsync_port);
+               if (path) { /* source is remote */
+                       char *dummy_host;
+                       int dummy_port = 0;
+                       *argv = path;
+                       remote_argv = argv;
+                       remote_argc = argc;
+                       argv += argc - 1;
+                       if (argc == 1 || **argv == ':')
+                               argc = 0; /* no dest arg */
+                       else if (check_for_hostspec(*argv, &dummy_host, &dummy_port)) {
                                rprintf(FERROR,
                                        "The source and destination cannot both be remote.\n");
                                exit_cleanup(RERR_SYNTAX);
+                       } else {
+                               remote_argc--; /* don't count dest */
+                               argc = 1;
                        }
-                       argv++;
                        if (filesfrom_host && *filesfrom_host
                            && strcmp(filesfrom_host, shell_machine) != 0) {
                                rprintf(FERROR,
                                        "--files-from hostname is not the same as the transfer hostname\n");
                                exit_cleanup(RERR_SYNTAX);
                        }
-                       if (rsync_port) {
-                               if (!shell_cmd) {
-                                       return start_socket_client(shell_machine,
-                                                                  shell_path,
-                                                                  argc, argv);
-                               }
-                               daemon_over_rsh = 1;
-                       }
-
                        am_sender = 0;
+                       if (rsync_port)
+                               daemon_over_rsh = shell_cmd ? 1 : -1;
                } else { /* source is local, check dest arg */
                        am_sender = 1;
 
-                       if (argc > 1)
+                       if (argc > 1) {
                                p = argv[--argc];
-                       else {
-                               p = ".";
-                               list_only = 1;
+                               remote_argv = argv + argc;
+                       } else {
+                               static char *dotarg[1] = { "." };
+                               p = dotarg[0];
+                               remote_argv = dotarg;
                        }
+                       remote_argc = 1;
 
-                       shell_path = check_for_hostspec(p, &shell_machine, &rsync_port);
-                       if (shell_path && filesfrom_host && *filesfrom_host
+                       path = check_for_hostspec(p, &shell_machine, &rsync_port);
+                       if (path && filesfrom_host && *filesfrom_host
                            && strcmp(filesfrom_host, shell_machine) != 0) {
                                rprintf(FERROR,
                                        "--files-from hostname is not the same as the transfer hostname\n");
                                exit_cleanup(RERR_SYNTAX);
                        }
-                       if (!shell_path) { /* no hostspec found, so src & dest are local */
+                       if (!path) { /* no hostspec found, so src & dest are local */
                                local_server = 1;
                                if (filesfrom_host) {
                                        rprintf(FERROR,
@@ -1127,31 +1185,76 @@ static int start_client(int argc, char *argv[])
                                        exit_cleanup(RERR_SYNTAX);
                                }
                                shell_machine = NULL;
-                               shell_path = p;
-                       } else if (rsync_port) {
-                               if (!shell_cmd) {
-                                       return start_socket_client(shell_machine,
-                                                                  shell_path,
-                                                                  argc, argv);
-                               }
-                               daemon_over_rsh = 1;
+                       } else { /* hostspec was found, so dest is remote */
+                               argv[argc] = path;
+                               if (rsync_port)
+                                       daemon_over_rsh = shell_cmd ? 1 : -1;
                        }
                }
        } else {  /* read_batch */
                local_server = 1;
-               shell_path = argv[argc-1];
-               if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) {
+               if (check_for_hostspec(argv[argc-1], &shell_machine, &rsync_port)) {
                        rprintf(FERROR, "remote destination is not allowed with --read-batch\n");
                        exit_cleanup(RERR_SYNTAX);
                }
+               remote_argv = argv + argc - 1;
+               remote_argc = 1;
+       }
+
+       if (am_sender) {
+               char *dummy_host;
+               int dummy_port = rsync_port;
+               int i;
+               /* For local source, extra source args must not have hostspec. */
+               for (i = 1; i < argc; i++) {
+                       if (check_for_hostspec(argv[i], &dummy_host, &dummy_port)) {
+                               rprintf(FERROR, "Unexpected remote arg: %s\n", argv[i]);
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+               }
+       } else {
+               char *dummy_host;
+               int dummy_port = rsync_port;
+               int i;
+               /* For remote source, any extra source args must have either
+                * the same hostname or an empty hostname. */
+               for (i = 1; i < remote_argc; i++) {
+                       char *arg = check_for_hostspec(remote_argv[i], &dummy_host, &dummy_port);
+                       if (!arg) {
+                               rprintf(FERROR, "Unexpected local arg: %s\n", remote_argv[i]);
+                               rprintf(FERROR, "If arg is a remote file/dir, prefix it with a colon (:).\n");
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+                       if (*dummy_host && strcmp(dummy_host, shell_machine) != 0) {
+                               rprintf(FERROR, "All source args must come from the same machine.\n");
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+                       if (rsync_port != dummy_port) {
+                               if (!rsync_port || !dummy_port)
+                                       rprintf(FERROR, "All source args must use the same hostspec format.\n");
+                               else
+                                       rprintf(FERROR, "All source args must use the same port number.\n");
+                               exit_cleanup(RERR_SYNTAX);
+                       }
+                       remote_argv[i] = arg;
+               }
        }
 
+       if (daemon_over_rsh < 0)
+               return start_socket_client(shell_machine, remote_argc, remote_argv, argc, argv);
+
        if (password_file && !daemon_over_rsh) {
                rprintf(FERROR, "The --password-file option may only be "
                                "used when accessing an rsync daemon.\n");
                exit_cleanup(RERR_SYNTAX);
        }
 
+       if (connect_timeout) {
+               rprintf(FERROR, "The --contimeout option may only be "
+                               "used when connecting to an rsync daemon.\n");
+               exit_cleanup(RERR_SYNTAX);
+       }
+
        if (shell_machine) {
                p = strrchr(shell_machine,'@');
                if (p) {
@@ -1161,33 +1264,20 @@ static int start_client(int argc, char *argv[])
                }
        }
 
-       if (verbose > 3) {
+       if (DEBUG_GTE(CMD, 2)) {
                rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n",
-                       shell_cmd ? shell_cmd : "",
-                       shell_machine ? shell_machine : "",
-                       shell_user ? shell_user : "",
-                       shell_path ? shell_path : "");
+                       NS(shell_cmd), NS(shell_machine), NS(shell_user),
+                       remote_argv ? NS(remote_argv[0]) : "");
        }
 
-       /* for remote source, only single dest arg can remain ... */
-       if (!am_sender && argc > 1) {
-               usage(FERROR);
-               exit_cleanup(RERR_SYNTAX);
-       }
-
-       /* ... or no dest at all */
-       if (!am_sender && argc == 0)
-               list_only |= 1;
-
-       pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,
-                    &f_in,&f_out);
+       pid = do_cmd(shell_cmd, shell_machine, shell_user, remote_argv, remote_argc,
+                    &f_in, &f_out);
 
        /* if we're running an rsync server on the remote host over a
         * remote shell command, we need to do the RSYNCD protocol first */
        if (daemon_over_rsh) {
                int tmpret;
-               tmpret = start_inband_exchange(shell_user, shell_path,
-                                              f_in, f_out, argc);
+               tmpret = start_inband_exchange(f_in, f_out, shell_user, remote_argc, remote_argv);
                if (tmpret < 0)
                        return tmpret;
        }
@@ -1211,7 +1301,7 @@ static RETSIGTYPE sigusr2_handler(UNUSED(int val))
        if (!am_server)
                output_summary();
        close_all();
-       if (log_got_error)
+       if (got_xfer_error)
                _exit(RERR_PARTIAL);
        _exit(0);
 }
@@ -1318,7 +1408,8 @@ int main(int argc,char *argv[])
 #endif
 
        starttime = time(NULL);
-       am_root = (MY_UID() == 0);
+       our_uid = MY_UID();
+       am_root = our_uid == 0;
 
        memset(&stats, 0, sizeof(stats));
 
@@ -1335,7 +1426,7 @@ int main(int argc,char *argv[])
        setlocale(LC_CTYPE, "");
 #endif
 
-       if (!parse_arguments(&argc, (const char ***) &argv, 1)) {
+       if (!parse_arguments(&argc, (const char ***) &argv)) {
                /* FIXME: We ought to call the same error-handling
                 * code here, rather than relying on getopt. */
                option_error();
@@ -1356,11 +1447,11 @@ int main(int argc,char *argv[])
        SIGACTION(SIGXFSZ, SIG_IGN);
 #endif
 
-       /* Initialize push_dir here because on some old systems getcwd
+       /* Initialize change_dir() here because on some old systems getcwd
         * (implemented by forking "pwd" and reading its output) doesn't
         * work when there are other child processes.  Also, on all systems
         * that implement getcwd that way "pwd" can't be found after chroot. */
-       push_dir(NULL, 0);
+       change_dir(NULL, CD_NORMAL);
 
        init_flist();
 
@@ -1384,14 +1475,27 @@ int main(int argc,char *argv[])
                        read_stream_flags(batch_fd);
                else
                        write_stream_flags(batch_fd);
-
        }
        if (write_batch < 0)
                dry_run = 1;
 
-       if (am_daemon && !am_server)
+       if (am_server) {
+#ifdef ICONV_CONST
+               setup_iconv();
+#endif
+       } else if (am_daemon)
                return daemon_main();
 
+       if (am_server && protect_args) {
+               char buf[MAXPATHLEN];
+               protect_args = 2;
+               read_args(STDIN_FILENO, NULL, buf, sizeof buf, 1, &argv, &argc, NULL);
+               if (!parse_arguments(&argc, (const char ***) &argv)) {
+                       option_error();
+                       exit_cleanup(RERR_SYNTAX);
+               }
+       }
+
        if (argc < 1) {
                usage(FERROR);
                exit_cleanup(RERR_SYNTAX);