1122 lines
34 KiB
C
1122 lines
34 KiB
C
/* -*- c-file-style: "linux" -*-
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*
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* Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
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* Copyright (C) 2000, 2001, 2002 by Martin Pool <mbp@samba.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "rsync.h"
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#include "popt.h"
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extern int sanitize_paths;
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extern int select_timeout;
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extern struct exclude_list_struct exclude_list;
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extern struct exclude_list_struct server_exclude_list;
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int make_backups = 0;
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/**
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* If 1, send the whole file as literal data rather than trying to
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* create an incremental diff.
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*
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* If -1, then look at whether we're local or remote and go by that.
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*
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* @sa disable_deltas_p()
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**/
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int whole_file = -1;
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int archive_mode = 0;
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int keep_dirlinks = 0;
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int copy_links = 0;
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int preserve_links = 0;
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int preserve_hard_links = 0;
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int preserve_perms = 0;
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int preserve_devices = 0;
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int preserve_uid = 0;
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int preserve_gid = 0;
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int preserve_times = 0;
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int update_only = 0;
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int cvs_exclude = 0;
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int dry_run = 0;
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int local_server = 0;
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int ignore_times = 0;
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int delete_mode = 0;
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int delete_excluded = 0;
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int one_file_system = 0;
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int protocol_version = PROTOCOL_VERSION;
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int sparse_files = 0;
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int do_compression = 0;
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int am_root = 0;
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int orig_umask = 0;
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int relative_paths = -1;
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int implied_dirs = 1;
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int numeric_ids = 0;
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int force_delete = 0;
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int io_timeout = 0;
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int read_only = 0;
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int module_id = -1;
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int am_server = 0;
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int am_sender = 0;
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int am_generator = 0;
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char *files_from = NULL;
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int filesfrom_fd = -1;
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char *remote_filesfrom_file = NULL;
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int eol_nulls = 0;
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int recurse = 0;
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int am_daemon = 0;
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int daemon_over_rsh = 0;
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int do_stats = 0;
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int do_progress = 0;
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int keep_partial = 0;
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int safe_symlinks = 0;
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int copy_unsafe_links = 0;
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int size_only = 0;
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int bwlimit = 0;
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size_t bwlimit_writemax = 0;
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int delete_after = 0;
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int only_existing = 0;
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int opt_ignore_existing = 0;
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int max_delete = 0;
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int ignore_errors = 0;
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int modify_window = 0;
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int blocking_io = -1;
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int checksum_seed = 0;
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int inplace = 0;
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unsigned int block_size = 0;
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/** Network address family. **/
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#ifdef INET6
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int default_af_hint = 0; /* Any protocol */
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#else
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int default_af_hint = AF_INET; /* Must use IPv4 */
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#endif
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/** Do not go into the background when run as --daemon. Good
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* for debugging and required for running as a service on W32,
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* or under Unix process-monitors. **/
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int no_detach = 0;
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int write_batch = 0;
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int read_batch = 0;
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int backup_dir_len = 0;
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int backup_suffix_len;
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unsigned int backup_dir_remainder;
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char *backup_suffix = NULL;
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char *tmpdir = NULL;
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char *partial_dir = NULL;
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char *compare_dest = NULL;
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char *config_file = NULL;
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char *shell_cmd = NULL;
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char *log_format = NULL;
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char *password_file = NULL;
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char *rsync_path = RSYNC_PATH;
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char *backup_dir = NULL;
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char backup_dir_buf[MAXPATHLEN];
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int rsync_port = RSYNC_PORT;
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int link_dest = 0;
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int verbose = 0;
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int quiet = 0;
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int always_checksum = 0;
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int list_only = 0;
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#define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
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char *batch_name = NULL;
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static int daemon_opt; /* sets am_daemon after option error-reporting */
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static int modify_window_set;
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/** Local address to bind. As a character string because it's
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* interpreted by the IPv6 layer: should be a numeric IP4 or IP6
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* address, or a hostname. **/
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char *bind_address;
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static void print_rsync_version(enum logcode f)
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{
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char const *got_socketpair = "no ";
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char const *have_inplace = "no ";
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char const *hardlinks = "no ";
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char const *links = "no ";
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char const *ipv6 = "no ";
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STRUCT_STAT *dumstat;
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#ifdef HAVE_SOCKETPAIR
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got_socketpair = "";
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#endif
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#if HAVE_FTRUNCATE
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have_inplace = "";
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#endif
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#if SUPPORT_HARD_LINKS
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hardlinks = "";
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#endif
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#if SUPPORT_LINKS
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links = "";
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#endif
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#if INET6
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ipv6 = "";
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#endif
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rprintf(f, "%s version %s protocol version %d\n",
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RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
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rprintf(f,
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"Copyright (C) 1996-2004 by Andrew Tridgell and others\n");
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rprintf(f, "<http://rsync.samba.org/>\n");
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rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
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"%shard links, %ssymlinks, batchfiles, \n",
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(int) (sizeof (OFF_T) * 8),
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got_socketpair, hardlinks, links);
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/* Note that this field may not have type ino_t. It depends
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* on the complicated interaction between largefile feature
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* macros. */
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rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums\n",
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have_inplace, ipv6,
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(int) (sizeof dumstat->st_ino * 8),
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(int) (sizeof (uint64) * 8));
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#ifdef MAINTAINER_MODE
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rprintf(f, " panic action: \"%s\"\n",
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get_panic_action());
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#endif
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#ifdef INT64_IS_OFF_T
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if (sizeof (int64) < 8)
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rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
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#endif
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rprintf(f,
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"\n"
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"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
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"are welcome to redistribute it under certain conditions. See the GNU\n"
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"General Public Licence for details.\n"
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);
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}
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void usage(enum logcode F)
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{
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print_rsync_version(F);
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rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
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rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
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rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
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rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
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rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
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rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
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rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
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rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
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rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
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rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
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rprintf(F," sources separated by space as long as they have same top-level\n");
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rprintf(F,"\nOptions\n");
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rprintf(F," -v, --verbose increase verbosity\n");
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rprintf(F," -q, --quiet decrease verbosity\n");
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rprintf(F," -c, --checksum always checksum\n");
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rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD\n");
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rprintf(F," -r, --recursive recurse into directories\n");
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rprintf(F," -R, --relative use relative path names\n");
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rprintf(F," --no-relative turn off --relative\n");
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rprintf(F," --no-implied-dirs don't send implied dirs with -R\n");
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rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
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rprintf(F," --backup-dir make backups into this directory\n");
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rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
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rprintf(F," -u, --update update only (don't overwrite newer files)\n");
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rprintf(F," --inplace update destination files inplace (SEE MAN PAGE)\n");
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rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
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rprintf(F," -l, --links copy symlinks as symlinks\n");
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rprintf(F," -L, --copy-links copy the referent of all symlinks\n");
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rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n");
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rprintf(F," --safe-links ignore \"unsafe\" symlinks\n");
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rprintf(F," -H, --hard-links preserve hard links\n");
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rprintf(F," -p, --perms preserve permissions\n");
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rprintf(F," -o, --owner preserve owner (root only)\n");
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rprintf(F," -g, --group preserve group\n");
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rprintf(F," -D, --devices preserve devices (root only)\n");
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rprintf(F," -t, --times preserve times\n");
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rprintf(F," -S, --sparse handle sparse files efficiently\n");
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rprintf(F," -n, --dry-run show what would have been transferred\n");
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rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
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rprintf(F," --no-whole-file turn off --whole-file\n");
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rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
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rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
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rprintf(F," -e, --rsh=COMMAND specify the remote shell\n");
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rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
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rprintf(F," --existing only update files that already exist\n");
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rprintf(F," --ignore-existing ignore files that already exist on receiving side\n");
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rprintf(F," --delete delete files that don't exist on the sending side\n");
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rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
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rprintf(F," --delete-after receiver deletes after transferring, not before\n");
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rprintf(F," --ignore-errors delete even if there are I/O errors\n");
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rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
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rprintf(F," --partial keep partially transferred files\n");
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rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
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rprintf(F," --force force deletion of directories even if not empty\n");
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rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
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rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
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rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n");
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rprintf(F," --size-only ignore mod time for quick check (use size)\n");
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rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n");
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rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
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rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
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rprintf(F," --link-dest=DIR create hardlinks to DIR for unchanged files\n");
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rprintf(F," -P equivalent to --partial --progress\n");
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rprintf(F," -z, --compress compress file data\n");
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rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
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rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
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rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
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rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
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rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
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rprintf(F," --files-from=FILE read FILE for list of source-file names\n");
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rprintf(F," -0, --from0 all *-from file lists are delimited by nulls\n");
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rprintf(F," --version print version number\n");
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rprintf(F," --daemon run as an rsync daemon\n");
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rprintf(F," --no-detach do not detach from the parent\n");
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rprintf(F," --address=ADDRESS bind to the specified address\n");
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rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
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rprintf(F," --port=PORT specify alternate rsyncd port number\n");
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rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
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rprintf(F," --no-blocking-io turn off --blocking-io\n");
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rprintf(F," --stats give some file transfer stats\n");
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rprintf(F," --progress show progress during transfer\n");
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rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
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rprintf(F," --password-file=FILE get password from FILE\n");
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rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n");
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rprintf(F," --write-batch=FILE write a batch to FILE\n");
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rprintf(F," --read-batch=FILE read a batch from FILE\n");
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rprintf(F," --checksum-seed=NUM set block/file checksum seed\n");
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#ifdef INET6
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rprintf(F," -4, --ipv4 prefer IPv4\n");
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rprintf(F," -6, --ipv6 prefer IPv6\n");
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#endif
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rprintf(F," -h, --help show this help screen\n");
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rprintf(F,"\n");
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rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
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rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
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}
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enum {OPT_VERSION = 1000, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
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OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_LINK_DEST,
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OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
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OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT,
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OPT_REFUSED_BASE = 9000};
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static struct poptOption long_options[] = {
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/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
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{"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
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{"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
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{"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
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{"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
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{"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
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{"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
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{"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
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{"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 },
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{"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
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{"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 },
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{"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 },
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{"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 },
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{"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 },
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{"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 },
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{"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 },
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{"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
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{"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
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{"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
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{"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
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{"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
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{"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
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{"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
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{"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
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{"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
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{"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
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{"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
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{"inplace", 0, POPT_ARG_NONE, &inplace, 0, 0, 0 },
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{"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
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{"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 },
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{"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 },
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{"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
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{"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
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{"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 },
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{"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 },
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{"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 },
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{"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 },
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{"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 },
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{"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 },
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{"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 },
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{"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
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{"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
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{"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 },
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{"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
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{"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
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{"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 },
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{"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
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{"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
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{"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
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{"block-size", 'B', POPT_ARG_INT, &block_size, 0, 0, 0 },
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{"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
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{"timeout", 0, POPT_ARG_INT, &io_timeout, OPT_TIMEOUT, 0, 0 },
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{"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
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{"compare-dest", 0, POPT_ARG_STRING, &compare_dest, 0, 0, 0 },
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{"link-dest", 0, POPT_ARG_STRING, &compare_dest, OPT_LINK_DEST, 0, 0 },
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/* TODO: Should this take an optional int giving the compression level? */
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{"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 },
|
|
{"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
|
|
{"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 },
|
|
{"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
|
|
{"progress", 0, POPT_ARG_NONE, &do_progress, 0, 0, 0 },
|
|
{"partial", 0, POPT_ARG_NONE, &keep_partial, 0, 0, 0 },
|
|
{"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
|
|
{"ignore-errors", 0, POPT_ARG_NONE, &ignore_errors, 0, 0, 0 },
|
|
{"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
|
|
{"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
|
|
{0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
|
|
{"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
|
|
{"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
|
|
{"log-format", 0, POPT_ARG_STRING, &log_format, 0, 0, 0 },
|
|
{"bwlimit", 0, POPT_ARG_INT, &bwlimit, 0, 0, 0 },
|
|
{"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
|
|
{"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
|
|
{"hard-links", 'H', POPT_ARG_NONE, &preserve_hard_links, 0, 0, 0 },
|
|
{"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
|
|
{"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
|
|
{"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
|
|
{"from0", '0', POPT_ARG_NONE, &eol_nulls, 0, 0, 0},
|
|
{"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
|
|
{"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
|
|
{"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
|
|
#ifdef INET6
|
|
{"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
|
|
{"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
|
|
#endif
|
|
{0,0,0,0, 0, 0, 0}
|
|
};
|
|
|
|
|
|
static char err_buf[200];
|
|
|
|
|
|
/**
|
|
* Store the option error message, if any, so that we can log the
|
|
* connection attempt (which requires parsing the options), and then
|
|
* show the error later on.
|
|
**/
|
|
void option_error(void)
|
|
{
|
|
if (!err_buf[0]) {
|
|
strcpy(err_buf, "Error parsing options: "
|
|
"option may be supported on client but not on server?\n");
|
|
}
|
|
|
|
rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
|
|
}
|
|
|
|
|
|
/**
|
|
* Tweak the option table to disable all options that the rsyncd.conf
|
|
* file has told us to refuse.
|
|
**/
|
|
static void set_refuse_options(char *bp)
|
|
{
|
|
struct poptOption *op;
|
|
char *cp, shortname[2];
|
|
int is_wild, found_match;
|
|
|
|
shortname[1] = '\0';
|
|
|
|
while (1) {
|
|
while (*bp == ' ') bp++;
|
|
if (!*bp)
|
|
break;
|
|
if ((cp = strchr(bp, ' ')) != NULL)
|
|
*cp= '\0';
|
|
/* If they specify "delete", reject all delete options. */
|
|
if (strcmp(bp, "delete") == 0)
|
|
bp = "delete*";
|
|
is_wild = strpbrk(bp, "*?[") != NULL;
|
|
found_match = 0;
|
|
for (op = long_options; ; op++) {
|
|
*shortname = op->shortName;
|
|
if (!op->longName && !*shortname)
|
|
break;
|
|
if ((op->longName && wildmatch(bp, op->longName))
|
|
|| (*shortname && wildmatch(bp, shortname))) {
|
|
op->val = (op - long_options) + OPT_REFUSED_BASE;
|
|
found_match = 1;
|
|
if (!is_wild)
|
|
break;
|
|
}
|
|
}
|
|
if (!found_match) {
|
|
rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
|
|
bp);
|
|
}
|
|
if (!cp)
|
|
break;
|
|
*cp = ' ';
|
|
bp = cp + 1;
|
|
}
|
|
}
|
|
|
|
|
|
static int count_args(char const **argv)
|
|
{
|
|
int i = 0;
|
|
|
|
while (argv[i] != NULL)
|
|
i++;
|
|
|
|
return i;
|
|
}
|
|
|
|
|
|
/**
|
|
* Process command line arguments. Called on both local and remote.
|
|
*
|
|
* @retval 1 if all options are OK; with globals set to appropriate
|
|
* values
|
|
*
|
|
* @retval 0 on error, with err_buf containing an explanation
|
|
**/
|
|
int parse_arguments(int *argc, const char ***argv, int frommain)
|
|
{
|
|
int opt;
|
|
char *ref = lp_refuse_options(module_id);
|
|
const char *arg;
|
|
poptContext pc;
|
|
|
|
if (ref && *ref)
|
|
set_refuse_options(ref);
|
|
|
|
/* TODO: Call poptReadDefaultConfig; handle errors. */
|
|
|
|
/* The context leaks in case of an error, but if there's a
|
|
* problem we always exit anyhow. */
|
|
pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
|
|
|
|
while ((opt = poptGetNextOpt(pc)) != -1) {
|
|
/* most options are handled automatically by popt;
|
|
* only special cases are returned and listed here. */
|
|
|
|
switch (opt) {
|
|
case OPT_VERSION:
|
|
print_rsync_version(FINFO);
|
|
exit_cleanup(0);
|
|
|
|
case OPT_MODIFY_WINDOW:
|
|
/* The value has already been set by popt, but
|
|
* we need to remember that we're using a
|
|
* non-default setting. */
|
|
modify_window_set = 1;
|
|
break;
|
|
|
|
case OPT_DELETE_AFTER:
|
|
delete_after = 1;
|
|
delete_mode = 1;
|
|
break;
|
|
|
|
case OPT_DELETE_EXCLUDED:
|
|
delete_excluded = 1;
|
|
delete_mode = 1;
|
|
break;
|
|
|
|
case OPT_EXCLUDE:
|
|
add_exclude(&exclude_list, poptGetOptArg(pc), 0);
|
|
break;
|
|
|
|
case OPT_INCLUDE:
|
|
add_exclude(&exclude_list, poptGetOptArg(pc),
|
|
XFLG_DEF_INCLUDE);
|
|
break;
|
|
|
|
case OPT_EXCLUDE_FROM:
|
|
case OPT_INCLUDE_FROM:
|
|
arg = poptGetOptArg(pc);
|
|
if (sanitize_paths)
|
|
arg = sanitize_path(NULL, arg, NULL, 0);
|
|
if (server_exclude_list.head) {
|
|
char *cp = (char *)arg;
|
|
clean_fname(cp, 1);
|
|
if (check_exclude(&server_exclude_list, cp, 0) < 0)
|
|
goto options_rejected;
|
|
}
|
|
add_exclude_file(&exclude_list, arg, XFLG_FATAL_ERRORS
|
|
| (opt == OPT_INCLUDE_FROM
|
|
? XFLG_DEF_INCLUDE : 0));
|
|
break;
|
|
|
|
case 'h':
|
|
usage(FINFO);
|
|
exit_cleanup(0);
|
|
|
|
case 'v':
|
|
verbose++;
|
|
break;
|
|
|
|
case 'q':
|
|
if (frommain)
|
|
quiet++;
|
|
break;
|
|
|
|
case OPT_SENDER:
|
|
if (!am_server) {
|
|
usage(FERROR);
|
|
exit_cleanup(RERR_SYNTAX);
|
|
}
|
|
am_sender = 1;
|
|
break;
|
|
|
|
case 'P':
|
|
do_progress = 1;
|
|
keep_partial = 1;
|
|
break;
|
|
|
|
case OPT_WRITE_BATCH:
|
|
/* batch_name is already set */
|
|
write_batch = 1;
|
|
break;
|
|
|
|
case OPT_READ_BATCH:
|
|
/* batch_name is already set */
|
|
read_batch = 1;
|
|
break;
|
|
|
|
case OPT_TIMEOUT:
|
|
if (io_timeout && io_timeout < select_timeout)
|
|
select_timeout = io_timeout;
|
|
break;
|
|
|
|
case OPT_LINK_DEST:
|
|
#if HAVE_LINK
|
|
link_dest = 1;
|
|
break;
|
|
#else
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"hard links are not supported on this %s\n",
|
|
am_server ? "server" : "client");
|
|
return 0;
|
|
#endif
|
|
|
|
default:
|
|
/* A large opt value means that set_refuse_options()
|
|
* turned this option off (opt-BASE is its index). */
|
|
if (opt >= OPT_REFUSED_BASE) {
|
|
struct poptOption *op =
|
|
&long_options[opt-OPT_REFUSED_BASE];
|
|
int n = snprintf(err_buf, sizeof err_buf,
|
|
"This server does not support --%s\n",
|
|
op->longName) - 1;
|
|
if (op->shortName) {
|
|
snprintf(err_buf+n, sizeof err_buf-n,
|
|
" (-%c)\n", op->shortName);
|
|
}
|
|
} else {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"%s%s: %s\n",
|
|
am_server ? "on remote machine: " : "",
|
|
poptBadOption(pc, POPT_BADOPTION_NOALIAS),
|
|
poptStrerror(opt));
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
#if !SUPPORT_LINKS
|
|
if (preserve_links && !am_sender) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"symlinks are not supported on this %s\n",
|
|
am_server ? "server" : "client");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if !SUPPORT_HARD_LINKS
|
|
if (preserve_hard_links) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"hard links are not supported on this %s\n",
|
|
am_server ? "server" : "client");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
if (write_batch && read_batch) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--write-batch and --read-batch can not be used together\n");
|
|
return 0;
|
|
}
|
|
if (write_batch || read_batch) {
|
|
if (dry_run) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--%s-batch cannot be used with --dry_run (-n)\n",
|
|
write_batch ? "write" : "read");
|
|
return 0;
|
|
}
|
|
if (am_server) {
|
|
rprintf(FINFO,
|
|
"ignoring --%s-batch option sent to server\n",
|
|
write_batch ? "write" : "read");
|
|
/* We don't actually exit_cleanup(), so that we can
|
|
* still service older version clients that still send
|
|
* batch args to server. */
|
|
read_batch = write_batch = 0;
|
|
batch_name = NULL;
|
|
}
|
|
}
|
|
if (read_batch && files_from) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--read-batch cannot be used with --files-from\n");
|
|
return 0;
|
|
}
|
|
if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"the batch-file name must be %d characters or less.\n",
|
|
MAX_BATCH_NAME_LEN);
|
|
return 0;
|
|
}
|
|
|
|
if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"the --temp-dir path is WAY too long.\n");
|
|
return 0;
|
|
}
|
|
|
|
if (archive_mode) {
|
|
if (!files_from)
|
|
recurse = 1;
|
|
#if SUPPORT_LINKS
|
|
preserve_links = 1;
|
|
#endif
|
|
preserve_perms = 1;
|
|
preserve_times = 1;
|
|
preserve_gid = 1;
|
|
preserve_uid = 1;
|
|
preserve_devices = 1;
|
|
}
|
|
|
|
if (relative_paths < 0)
|
|
relative_paths = files_from? 1 : 0;
|
|
|
|
*argv = poptGetArgs(pc);
|
|
if (*argv)
|
|
*argc = count_args(*argv);
|
|
else
|
|
*argc = 0;
|
|
|
|
if (sanitize_paths) {
|
|
int i;
|
|
for (i = *argc; i-- > 0; )
|
|
(*argv)[i] = sanitize_path(NULL, (*argv)[i], "", 0);
|
|
if (tmpdir)
|
|
tmpdir = sanitize_path(NULL, tmpdir, NULL, 0);
|
|
if (partial_dir)
|
|
partial_dir = sanitize_path(NULL, partial_dir, NULL, 0);
|
|
if (compare_dest)
|
|
compare_dest = sanitize_path(NULL, compare_dest, NULL, 0);
|
|
if (backup_dir)
|
|
backup_dir = sanitize_path(NULL, backup_dir, NULL, 0);
|
|
if (files_from)
|
|
files_from = sanitize_path(NULL, files_from, NULL, 0);
|
|
}
|
|
if (server_exclude_list.head && !am_sender) {
|
|
struct exclude_list_struct *elp = &server_exclude_list;
|
|
if (tmpdir) {
|
|
clean_fname(tmpdir, 1);
|
|
if (check_exclude(elp, tmpdir, 1) < 0)
|
|
goto options_rejected;
|
|
}
|
|
if (partial_dir) {
|
|
clean_fname(partial_dir, 1);
|
|
if (check_exclude(elp, partial_dir, 1) < 0)
|
|
goto options_rejected;
|
|
}
|
|
if (compare_dest) {
|
|
clean_fname(compare_dest, 1);
|
|
if (check_exclude(elp, compare_dest, 1) < 0)
|
|
goto options_rejected;
|
|
}
|
|
if (backup_dir) {
|
|
clean_fname(backup_dir, 1);
|
|
if (check_exclude(elp, backup_dir, 1) < 0)
|
|
goto options_rejected;
|
|
}
|
|
}
|
|
if (server_exclude_list.head && files_from) {
|
|
clean_fname(files_from, 1);
|
|
if (check_exclude(&server_exclude_list, files_from, 0) < 0) {
|
|
options_rejected:
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"Your options have been rejected by the server.\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (daemon_opt) {
|
|
daemon_opt = 0;
|
|
am_daemon = 1;
|
|
return 1;
|
|
}
|
|
|
|
if (!backup_suffix)
|
|
backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
|
|
backup_suffix_len = strlen(backup_suffix);
|
|
if (strchr(backup_suffix, '/') != NULL) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--suffix cannot contain slashes: %s\n",
|
|
backup_suffix);
|
|
return 0;
|
|
}
|
|
if (backup_dir) {
|
|
backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
|
|
backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
|
|
if (backup_dir_remainder < 32) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"the --backup-dir path is WAY too long.\n");
|
|
return 0;
|
|
}
|
|
if (backup_dir_buf[backup_dir_len - 1] != '/') {
|
|
backup_dir_buf[backup_dir_len++] = '/';
|
|
backup_dir_buf[backup_dir_len] = '\0';
|
|
}
|
|
if (verbose > 1 && !am_sender)
|
|
rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf);
|
|
} else if (!backup_suffix_len && (!am_server || !am_sender)) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--suffix cannot be a null string without --backup-dir\n");
|
|
return 0;
|
|
}
|
|
|
|
if (do_progress && !verbose)
|
|
verbose = 1;
|
|
|
|
if (bwlimit) {
|
|
bwlimit_writemax = (size_t)bwlimit * 128;
|
|
if (bwlimit_writemax < 512)
|
|
bwlimit_writemax = 512;
|
|
}
|
|
|
|
if (inplace) {
|
|
#if HAVE_FTRUNCATE
|
|
if (partial_dir) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--inplace cannot be used with --partial-dir\n");
|
|
return 0;
|
|
}
|
|
keep_partial = 0;
|
|
#else
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--inplace is not supported on this %s\n",
|
|
am_server ? "server" : "client");
|
|
return 0;
|
|
#endif
|
|
if (compare_dest) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"--inplace does not yet work with %s\n",
|
|
link_dest ? "--link-dest" : "--compare-dest");
|
|
return 0;
|
|
}
|
|
} else if (partial_dir) {
|
|
if (strcmp(partial_dir, ".") == 0)
|
|
partial_dir = NULL;
|
|
keep_partial = 1;
|
|
}
|
|
|
|
if (files_from) {
|
|
char *colon;
|
|
if (*argc > 2 || (!am_daemon && *argc == 1)) {
|
|
usage(FERROR);
|
|
exit_cleanup(RERR_SYNTAX);
|
|
}
|
|
if (strcmp(files_from, "-") == 0) {
|
|
filesfrom_fd = 0;
|
|
if (am_server)
|
|
remote_filesfrom_file = "-";
|
|
}
|
|
else if ((colon = find_colon(files_from)) != 0) {
|
|
if (am_server) {
|
|
usage(FERROR);
|
|
exit_cleanup(RERR_SYNTAX);
|
|
}
|
|
remote_filesfrom_file = colon+1 + (colon[1] == ':');
|
|
if (strcmp(remote_filesfrom_file, "-") == 0) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"Invalid --files-from remote filename\n");
|
|
return 0;
|
|
}
|
|
} else {
|
|
filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
|
|
if (filesfrom_fd < 0) {
|
|
snprintf(err_buf, sizeof err_buf,
|
|
"failed to open files-from file %s: %s\n",
|
|
files_from, strerror(errno));
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
* Construct a filtered list of options to pass through from the
|
|
* client to the server.
|
|
*
|
|
* This involves setting options that will tell the server how to
|
|
* behave, and also filtering out options that are processed only
|
|
* locally.
|
|
**/
|
|
void server_options(char **args,int *argc)
|
|
{
|
|
int ac = *argc;
|
|
static char argstr[50];
|
|
char *arg;
|
|
|
|
int i, x;
|
|
|
|
if (blocking_io == -1)
|
|
blocking_io = 0;
|
|
|
|
args[ac++] = "--server";
|
|
|
|
if (daemon_over_rsh) {
|
|
args[ac++] = "--daemon";
|
|
*argc = ac;
|
|
/* if we're passing --daemon, we're done */
|
|
return;
|
|
}
|
|
|
|
if (!am_sender)
|
|
args[ac++] = "--sender";
|
|
|
|
x = 1;
|
|
argstr[0] = '-';
|
|
for (i = 0; i < verbose; i++)
|
|
argstr[x++] = 'v';
|
|
|
|
/* the -q option is intentionally left out */
|
|
if (make_backups)
|
|
argstr[x++] = 'b';
|
|
if (update_only)
|
|
argstr[x++] = 'u';
|
|
if (dry_run)
|
|
argstr[x++] = 'n';
|
|
if (preserve_links)
|
|
argstr[x++] = 'l';
|
|
if (copy_links)
|
|
argstr[x++] = 'L';
|
|
if (keep_dirlinks && am_sender)
|
|
argstr[x++] = 'K';
|
|
|
|
if (whole_file > 0)
|
|
argstr[x++] = 'W';
|
|
/* We don't need to send --no-whole-file, because it's the
|
|
* default for remote transfers, and in any case old versions
|
|
* of rsync will not understand it. */
|
|
|
|
if (preserve_hard_links)
|
|
argstr[x++] = 'H';
|
|
if (preserve_uid)
|
|
argstr[x++] = 'o';
|
|
if (preserve_gid)
|
|
argstr[x++] = 'g';
|
|
if (preserve_devices)
|
|
argstr[x++] = 'D';
|
|
if (preserve_times)
|
|
argstr[x++] = 't';
|
|
if (preserve_perms)
|
|
argstr[x++] = 'p';
|
|
if (recurse)
|
|
argstr[x++] = 'r';
|
|
if (always_checksum)
|
|
argstr[x++] = 'c';
|
|
if (cvs_exclude)
|
|
argstr[x++] = 'C';
|
|
if (ignore_times)
|
|
argstr[x++] = 'I';
|
|
if (relative_paths)
|
|
argstr[x++] = 'R';
|
|
if (one_file_system)
|
|
argstr[x++] = 'x';
|
|
if (sparse_files)
|
|
argstr[x++] = 'S';
|
|
if (do_compression)
|
|
argstr[x++] = 'z';
|
|
|
|
/* this is a complete hack - blame Rusty
|
|
|
|
this is a hack to make the list_only (remote file list)
|
|
more useful */
|
|
if (list_only && !recurse)
|
|
argstr[x++] = 'r';
|
|
|
|
argstr[x] = 0;
|
|
|
|
if (x != 1)
|
|
args[ac++] = argstr;
|
|
|
|
if (block_size) {
|
|
if (asprintf(&arg, "-B%u", block_size) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (max_delete && am_sender) {
|
|
if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (io_timeout) {
|
|
if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (bwlimit) {
|
|
if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (backup_dir) {
|
|
args[ac++] = "--backup-dir";
|
|
args[ac++] = backup_dir;
|
|
}
|
|
|
|
/* Only send --suffix if it specifies a non-default value. */
|
|
if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
|
|
/* We use the following syntax to avoid weirdness with '~'. */
|
|
if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (am_sender) {
|
|
if (delete_excluded)
|
|
args[ac++] = "--delete-excluded";
|
|
else if (delete_mode
|
|
&& (!delete_after || protocol_version < 27))
|
|
args[ac++] = "--delete";
|
|
|
|
if (delete_after)
|
|
args[ac++] = "--delete-after";
|
|
|
|
if (force_delete)
|
|
args[ac++] = "--force";
|
|
}
|
|
|
|
if (size_only)
|
|
args[ac++] = "--size-only";
|
|
|
|
if (modify_window_set) {
|
|
if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (checksum_seed) {
|
|
if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
|
|
goto oom;
|
|
args[ac++] = arg;
|
|
}
|
|
|
|
if (partial_dir && am_sender) {
|
|
args[ac++] = "--partial-dir";
|
|
args[ac++] = partial_dir;
|
|
} else if (keep_partial)
|
|
args[ac++] = "--partial";
|
|
|
|
if (ignore_errors)
|
|
args[ac++] = "--ignore-errors";
|
|
|
|
if (copy_unsafe_links)
|
|
args[ac++] = "--copy-unsafe-links";
|
|
|
|
if (safe_symlinks)
|
|
args[ac++] = "--safe-links";
|
|
|
|
if (numeric_ids)
|
|
args[ac++] = "--numeric-ids";
|
|
|
|
if (only_existing && am_sender)
|
|
args[ac++] = "--existing";
|
|
|
|
if (opt_ignore_existing && am_sender)
|
|
args[ac++] = "--ignore-existing";
|
|
|
|
if (inplace)
|
|
args[ac++] = "--inplace";
|
|
|
|
if (tmpdir) {
|
|
args[ac++] = "--temp-dir";
|
|
args[ac++] = tmpdir;
|
|
}
|
|
|
|
if (compare_dest && am_sender) {
|
|
/* the server only needs this option if it is not the sender,
|
|
* and it may be an older version that doesn't know this
|
|
* option, so don't send it if client is the sender.
|
|
*/
|
|
args[ac++] = link_dest ? "--link-dest" : "--compare-dest";
|
|
args[ac++] = compare_dest;
|
|
}
|
|
|
|
if (files_from && (!am_sender || remote_filesfrom_file)) {
|
|
if (remote_filesfrom_file) {
|
|
args[ac++] = "--files-from";
|
|
args[ac++] = remote_filesfrom_file;
|
|
if (eol_nulls)
|
|
args[ac++] = "--from0";
|
|
} else {
|
|
args[ac++] = "--files-from=-";
|
|
args[ac++] = "--from0";
|
|
}
|
|
}
|
|
|
|
*argc = ac;
|
|
return;
|
|
|
|
oom:
|
|
out_of_memory("server_options");
|
|
}
|
|
|
|
/**
|
|
* Return the position of a ':' IF it is not part of a filename (i.e. as
|
|
* long as it doesn't occur after a slash.
|
|
*/
|
|
char *find_colon(char *s)
|
|
{
|
|
char *p, *p2;
|
|
|
|
p = strchr(s,':');
|
|
if (!p)
|
|
return NULL;
|
|
|
|
/* now check to see if there is a / in the string before the : - if there is then
|
|
discard the colon on the assumption that the : is part of a filename */
|
|
p2 = strchr(s,'/');
|
|
if (p2 && p2 < p)
|
|
return NULL;
|
|
|
|
return p;
|
|
}
|