/* -*- c-file-style: "linux" -*- * * Copyright (C) 1998-2001 by Andrew Tridgell * Copyright (C) 2000, 2001, 2002 by Martin Pool * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "rsync.h" #include "popt.h" extern int sanitize_paths; extern int select_timeout; extern struct exclude_list_struct exclude_list; extern struct exclude_list_struct server_exclude_list; int make_backups = 0; /** * If 1, send the whole file as literal data rather than trying to * create an incremental diff. * * If -1, then look at whether we're local or remote and go by that. * * @sa disable_deltas_p() **/ int whole_file = -1; int archive_mode = 0; int keep_dirlinks = 0; int copy_links = 0; int preserve_links = 0; int preserve_hard_links = 0; int preserve_perms = 0; int preserve_devices = 0; int preserve_uid = 0; int preserve_gid = 0; int preserve_times = 0; int update_only = 0; int cvs_exclude = 0; int dry_run = 0; int local_server = 0; int ignore_times = 0; int delete_mode = 0; int delete_excluded = 0; int one_file_system = 0; int protocol_version = PROTOCOL_VERSION; int sparse_files = 0; int do_compression = 0; int am_root = 0; int orig_umask = 0; int relative_paths = -1; int implied_dirs = 1; int numeric_ids = 0; int force_delete = 0; int io_timeout = 0; int read_only = 0; int module_id = -1; int am_server = 0; int am_sender = 0; int am_generator = 0; char *files_from = NULL; int filesfrom_fd = -1; char *remote_filesfrom_file = NULL; int eol_nulls = 0; int recurse = 0; int keep_dirs = 0; int am_daemon = 0; int daemon_over_rsh = 0; int do_stats = 0; int do_progress = 0; int keep_partial = 0; int safe_symlinks = 0; int copy_unsafe_links = 0; int size_only = 0; int daemon_bwlimit = 0; int bwlimit = 0; size_t bwlimit_writemax = 0; int delete_after = 0; int only_existing = 0; int opt_ignore_existing = 0; int max_delete = 0; OFF_T max_size = 0; int ignore_errors = 0; int modify_window = 0; int blocking_io = -1; int checksum_seed = 0; int inplace = 0; long block_size = 0; /* "long" because popt can't set an int32. */ /** Network address family. **/ #ifdef INET6 int default_af_hint = 0; /* Any protocol */ #else int default_af_hint = AF_INET; /* Must use IPv4 */ #endif /** Do not go into the background when run as --daemon. Good * for debugging and required for running as a service on W32, * or under Unix process-monitors. **/ int no_detach = 0; int write_batch = 0; int read_batch = 0; int backup_dir_len = 0; int backup_suffix_len; unsigned int backup_dir_remainder; char *backup_suffix = NULL; char *tmpdir = NULL; char *partial_dir = NULL; char *basis_dir[MAX_BASIS_DIRS+1]; char *config_file = NULL; char *shell_cmd = NULL; char *log_format = NULL; char *password_file = NULL; char *rsync_path = RSYNC_PATH; char *backup_dir = NULL; char backup_dir_buf[MAXPATHLEN]; int rsync_port = 0; int compare_dest = 0; int copy_dest = 0; int link_dest = 0; int basis_dir_cnt = 0; int verbose = 0; int quiet = 0; int always_checksum = 0; int list_only = 0; #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */ char *batch_name = NULL; static int daemon_opt; /* sets am_daemon after option error-reporting */ static int modify_window_set; static char *dest_option = NULL; static char *max_size_arg; /** Local address to bind. As a character string because it's * interpreted by the IPv6 layer: should be a numeric IP4 or IP6 * address, or a hostname. **/ char *bind_address; static void print_rsync_version(enum logcode f) { char const *got_socketpair = "no "; char const *have_inplace = "no "; char const *hardlinks = "no "; char const *links = "no "; char const *ipv6 = "no "; STRUCT_STAT *dumstat; #ifdef HAVE_SOCKETPAIR got_socketpair = ""; #endif #if HAVE_FTRUNCATE have_inplace = ""; #endif #if SUPPORT_HARD_LINKS hardlinks = ""; #endif #if SUPPORT_LINKS links = ""; #endif #if INET6 ipv6 = ""; #endif rprintf(f, "%s version %s protocol version %d\n", RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION); rprintf(f, "Copyright (C) 1996-2004 by Andrew Tridgell and others\n"); rprintf(f, "\n"); rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, " "%shard links, %ssymlinks, batchfiles, \n", (int) (sizeof (OFF_T) * 8), got_socketpair, hardlinks, links); /* Note that this field may not have type ino_t. It depends * on the complicated interaction between largefile feature * macros. */ rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums\n", have_inplace, ipv6, (int) (sizeof dumstat->st_ino * 8), (int) (sizeof (int64) * 8)); #ifdef MAINTAINER_MODE rprintf(f, " panic action: \"%s\"\n", get_panic_action()); #endif #ifdef INT64_IS_OFF_T if (sizeof (int64) < 8) rprintf(f, "WARNING: no 64-bit integers on this platform!\n"); #endif rprintf(f, "\n" "rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n" "are welcome to redistribute it under certain conditions. See the GNU\n" "General Public Licence for details.\n" ); } void usage(enum logcode F) { print_rsync_version(F); rprintf(F,"\nrsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n"); rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n"); rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n"); rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n"); rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n"); rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n"); rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n"); rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n"); rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n"); rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n"); rprintf(F," sources separated by space as long as they have same top-level\n"); rprintf(F,"\nOptions\n"); rprintf(F," -v, --verbose increase verbosity\n"); rprintf(F," -q, --quiet decrease verbosity\n"); rprintf(F," -c, --checksum always checksum\n"); rprintf(F," -a, --archive archive mode, equivalent to -rlptgoD (no -H)\n"); rprintf(F," -r, --recursive recurse into directories\n"); rprintf(F," -R, --relative use relative path names\n"); rprintf(F," --no-relative turn off --relative\n"); rprintf(F," --no-implied-dirs don't send implied dirs with -R\n"); rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n"); rprintf(F," --backup-dir make backups into this directory\n"); rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX); rprintf(F," -u, --update update only (don't overwrite newer files)\n"); rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n"); rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n"); rprintf(F," -l, --links copy symlinks as symlinks\n"); rprintf(F," -L, --copy-links copy the referent of all symlinks\n"); rprintf(F," --copy-unsafe-links copy the referent of \"unsafe\" symlinks\n"); rprintf(F," --safe-links ignore \"unsafe\" symlinks\n"); rprintf(F," -H, --hard-links preserve hard links\n"); rprintf(F," -p, --perms preserve permissions\n"); rprintf(F," -o, --owner preserve owner (root only)\n"); rprintf(F," -g, --group preserve group\n"); rprintf(F," -D, --devices preserve devices (root only)\n"); rprintf(F," -t, --times preserve times\n"); rprintf(F," -S, --sparse handle sparse files efficiently\n"); rprintf(F," -n, --dry-run show what would have been transferred\n"); rprintf(F," -W, --whole-file copy whole files, no incremental checks\n"); rprintf(F," --no-whole-file turn off --whole-file\n"); rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n"); rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n"); rprintf(F," -e, --rsh=COMMAND specify the remote shell\n"); rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n"); rprintf(F," --existing only update files that already exist\n"); rprintf(F," --ignore-existing ignore files that already exist on receiving side\n"); rprintf(F," --delete delete files that don't exist on the sending side\n"); rprintf(F," --delete-excluded also delete excluded files on the receiving side\n"); rprintf(F," --delete-after receiver deletes after transferring, not before\n"); rprintf(F," --ignore-errors delete even if there are I/O errors\n"); rprintf(F," --max-delete=NUM don't delete more than NUM files\n"); rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n"); rprintf(F," --partial keep partially transferred files\n"); rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n"); rprintf(F," --force force deletion of directories even if not empty\n"); rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n"); rprintf(F," --timeout=TIME set I/O timeout in seconds\n"); rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n"); rprintf(F," --size-only ignore mod time for quick check (use size)\n"); rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n"); rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n"); rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n"); rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n"); rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n"); rprintf(F," -P equivalent to --partial --progress\n"); rprintf(F," -z, --compress compress file data\n"); rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n"); rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n"); rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n"); rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n"); rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n"); rprintf(F," --files-from=FILE read FILE for list of source-file names\n"); rprintf(F," -0, --from0 all *-from file lists are delimited by nulls\n"); rprintf(F," --version print version number\n"); rprintf(F," --port=PORT specify double-colon alternate port number\n"); rprintf(F," --blocking-io use blocking I/O for the remote shell\n"); rprintf(F," --no-blocking-io turn off --blocking-io\n"); rprintf(F," --stats give some file transfer stats\n"); rprintf(F," --progress show progress during transfer\n"); rprintf(F," --log-format=FORMAT log file transfers using specified format\n"); rprintf(F," --password-file=FILE get password from FILE\n"); rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n"); rprintf(F," --write-batch=FILE write a batch to FILE\n"); rprintf(F," --read-batch=FILE read a batch from FILE\n"); #ifdef INET6 rprintf(F," -4, --ipv4 prefer IPv4\n"); rprintf(F," -6, --ipv6 prefer IPv6\n"); #endif rprintf(F," -h, --help show this help screen\n"); rprintf(F,"\nUse \"rsync --daemon --help\" to see the daemon-mode command-line options.\n"); rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n"); rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n"); } enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM, OPT_DELETE_AFTER, OPT_DELETE_EXCLUDED, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT, OPT_MAX_SIZE, OPT_REFUSED_BASE = 9000}; static struct poptOption long_options[] = { /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ {"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0}, {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 }, {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 }, {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 }, {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 }, {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 }, {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 }, {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 }, {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 }, {"existing", 0, POPT_ARG_NONE, &only_existing, 0, 0, 0 }, {"ignore-existing", 0, POPT_ARG_NONE, &opt_ignore_existing, 0, 0, 0 }, {"delete-after", 0, POPT_ARG_NONE, 0, OPT_DELETE_AFTER, 0, 0 }, {"delete-excluded", 0, POPT_ARG_NONE, 0, OPT_DELETE_EXCLUDED, 0, 0 }, {"force", 0, POPT_ARG_NONE, &force_delete, 0, 0, 0 }, {"numeric-ids", 0, POPT_ARG_NONE, &numeric_ids, 0, 0, 0 }, {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 }, {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 }, {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 }, {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 }, {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 }, {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 }, {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 }, {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 }, {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 }, {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 }, {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 }, {"inplace", 0, POPT_ARG_NONE, &inplace, 0, 0, 0 }, {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 }, {"links", 'l', POPT_ARG_NONE, &preserve_links, 0, 0, 0 }, {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 }, {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 }, {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 }, {"copy-unsafe-links", 0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 }, {"perms", 'p', POPT_ARG_NONE, &preserve_perms, 0, 0, 0 }, {"owner", 'o', POPT_ARG_NONE, &preserve_uid, 0, 0, 0 }, {"group", 'g', POPT_ARG_NONE, &preserve_gid, 0, 0, 0 }, {"devices", 'D', POPT_ARG_NONE, &preserve_devices, 0, 0, 0 }, {"times", 't', POPT_ARG_NONE, &preserve_times, 0, 0, 0 }, {"checksum", 'c', POPT_ARG_NONE, &always_checksum, 0, 0, 0 }, {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 }, {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 }, {"archive", 'a', POPT_ARG_NONE, &archive_mode, 0, 0, 0 }, {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 }, {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 }, {"recursive", 'r', POPT_ARG_NONE, &recurse, 0, 0, 0 }, {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 }, {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 }, {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 }, {"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 }, {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 }, {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 }, {"timeout", 0, POPT_ARG_INT, &io_timeout, OPT_TIMEOUT, 0, 0 }, {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 }, {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 }, {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 }, {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 }, /* TODO: Should this take an optional int giving the compression level? */ {"compress", 'z', POPT_ARG_NONE, &do_compression, 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 }, {"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 }, {"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 /* All these options switch us into daemon-mode option-parsing. */ {"address", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 }, {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 }, {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 }, {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 }, {0,0,0,0, 0, 0, 0} }; static void daemon_usage(enum logcode F) { print_rsync_version(F); rprintf(F,"\nUsage: rsync --daemon [OPTION]...\n"); rprintf(F," --address=ADDRESS bind to the specified address\n"); rprintf(F," --bwlimit=KBPS limit I/O bandwidth, KBytes per second\n"); rprintf(F," --config=FILE specify alternate rsyncd.conf file\n"); rprintf(F," --no-detach do not detach from the parent\n"); rprintf(F," --port=PORT specify alternate rsyncd port number\n"); #ifdef INET6 rprintf(F," -4, --ipv4 prefer IPv4\n"); rprintf(F," -6, --ipv6 prefer IPv6\n"); #endif rprintf(F," -h, --help show this help screen\n"); rprintf(F,"\nIf you were not trying to invoke rsync as a daemon, avoid using any of the\n"); rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n"); } static struct poptOption long_daemon_options[] = { /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 }, {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 }, {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 }, {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 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 {"no-detach", 0, POPT_ARG_NONE, &no_detach, 0, 0, 0 }, {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 }, {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 }, {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 }, {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 }, {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(const char **argv) { int i = 0; if (argv) { 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); poptReadDefaultConfig(pc, 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_DAEMON: if (am_daemon) { strcpy(err_buf, "Attempt to hack rsync thwarted!\n"); return 0; } poptFreeContext(pc); pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_daemon_options, 0); while ((opt = poptGetNextOpt(pc)) != -1) { switch (opt) { case 'h': daemon_usage(FINFO); exit_cleanup(0); default: rprintf(FERROR, "rsync: %s: %s (in daemon mode)\n", poptBadOption(pc, POPT_BADOPTION_NOALIAS), poptStrerror(opt)); goto daemon_error; } } if (!daemon_opt) { rprintf(FERROR, "Daemon option(s) used without --daemon.\n"); daemon_error: rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n"); exit_cleanup(RERR_SYNTAX); } *argv = poptGetArgs(pc); *argc = count_args(*argv); daemon_opt = 0; am_daemon = 1; return 1; 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_MAX_SIZE: for (arg = max_size_arg; isdigit(*arg); arg++) {} if (*arg == '.') for (arg++; isdigit(*arg); arg++) {} switch (*arg) { case 'k': case 'K': max_size = atof(max_size_arg) * 1024; break; case 'm': case 'M': max_size = atof(max_size_arg) * 1024*1024; break; case 'g': case 'G': max_size = atof(max_size_arg) * 1024*1024*1024; break; case '\0': max_size = atof(max_size_arg); break; default: max_size = 0; break; } if (max_size <= 0) { snprintf(err_buf, sizeof err_buf, "--max-size value is invalid: %s\n", max_size_arg); return 0; } 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; dest_option = "--link-dest"; goto set_dest_dir; #else snprintf(err_buf, sizeof err_buf, "hard links are not supported on this %s\n", am_server ? "server" : "client"); return 0; #endif case OPT_COPY_DEST: copy_dest = 1; dest_option = "--copy-dest"; goto set_dest_dir; case OPT_COMPARE_DEST: compare_dest = 1; dest_option = "--compare-dest"; set_dest_dir: if (basis_dir_cnt >= MAX_BASIS_DIRS) { snprintf(err_buf, sizeof err_buf, "ERROR: at most %d %s args may be specified\n", MAX_BASIS_DIRS, dest_option); return 0; } arg = poptGetOptArg(pc); if (sanitize_paths) arg = sanitize_path(NULL, arg, NULL, 0); basis_dir[basis_dir_cnt++] = (char *)arg; break; 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, "The server is configured to refuse --%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 (compare_dest + copy_dest + link_dest > 1) { snprintf(err_buf, sizeof err_buf, "You may not mix --compare-dest, --copy-dest, and --link-dest.\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 (recurse) { keep_dirs = 1; } if (relative_paths < 0) relative_paths = files_from? 1 : 0; *argv = poptGetArgs(pc); *argc = count_args(*argv); 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 (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; int i; 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; } for (i = 0; i < basis_dir_cnt; i++) { clean_fname(basis_dir[i], 1); if (check_exclude(elp, basis_dir[i], 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 (!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 (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit)) bwlimit = daemon_bwlimit; 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 } else { if (keep_partial && !partial_dir) partial_dir = getenv("RSYNC_PARTIAL_DIR"); if (partial_dir) { if (!*partial_dir || strcmp(partial_dir, ".") == 0) partial_dir = NULL; else if (*partial_dir != '/') { add_exclude(&exclude_list, partial_dir, XFLG_DIRECTORY); } 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; } } keep_dirs = 1; } 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) { static char argstr[50+MAX_BASIS_DIRS*2]; int ac = *argc; 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%lu", 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 (max_size && am_sender) { args[ac++] = "--max-size"; args[ac++] = max_size_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) 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 (basis_dir[0] && 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. */ int i; for (i = 0; i < basis_dir_cnt; i++) { args[ac++] = dest_option; args[ac++] = basis_dir[i]; } } 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"; } if (!relative_paths) args[ac++] = "--no-relative"; } if (!implied_dirs && !am_sender) args[ac++] = "--no-implied-dirs"; *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; }