/* * Command-line (and received via daemon-socket) option parsing. * * Copyright (C) 1998-2001 Andrew Tridgell * Copyright (C) 2000, 2001, 2002 Martin Pool * Copyright (C) 2002-2023 Wayne Davison * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 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, visit the http://fsf.org website. */ #include "rsync.h" #include "itypes.h" #include "ifuncs.h" #include extern int module_id; extern int local_server; extern int sanitize_paths; extern int trust_sender_args; extern int trust_sender_filter; extern unsigned int module_dirlen; extern filter_rule_list filter_list; extern filter_rule_list daemon_filter_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 append_mode = 0; int keep_dirlinks = 0; int copy_dirlinks = 0; int copy_links = 0; int copy_devices = 0; int write_devices = 0; int preserve_links = 0; int preserve_hard_links = 0; int preserve_acls = 0; int preserve_xattrs = 0; int preserve_perms = 0; int preserve_executability = 0; int preserve_devices = 0; int preserve_specials = 0; int preserve_uid = 0; int preserve_gid = 0; int preserve_mtimes = 0; int preserve_atimes = 0; int preserve_crtimes = 0; int omit_dir_times = 0; int omit_link_times = 0; int trust_sender = 0; int update_only = 0; int open_noatime = 0; int cvs_exclude = 0; int dry_run = 0; int do_xfers = 1; int do_fsync = 0; int ignore_times = 0; int delete_mode = 0; int delete_during = 0; int delete_before = 0; int delete_after = 0; int delete_excluded = 0; int remove_source_files = 0; int one_file_system = 0; int protocol_version = PROTOCOL_VERSION; int sparse_files = 0; int preallocate_files = 0; int do_compression = 0; int do_compression_level = CLVL_NOT_SPECIFIED; int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */ int am_server = 0; int am_sender = 0; int am_starting_up = 1; int relative_paths = -1; int implied_dirs = 1; int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */ int numeric_ids = 0; int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */ int saw_stderr_opt = 0; int allow_8bit_chars = 0; int force_delete = 0; int io_timeout = 0; int prune_empty_dirs = 0; int use_qsort = 0; char *files_from = NULL; int filesfrom_fd = -1; char *filesfrom_host = NULL; int eol_nulls = 0; int protect_args = -1; int old_style_args = -1; int human_readable = 1; int recurse = 0; int mkpath_dest_arg = 0; int allow_inc_recurse = 1; int xfer_dirs = -1; int am_daemon = 0; int connect_timeout = 0; int keep_partial = 0; int safe_symlinks = 0; int copy_unsafe_links = 0; int munge_symlinks = 0; int size_only = 0; int daemon_bwlimit = 0; int bwlimit = 0; int fuzzy_basis = 0; size_t bwlimit_writemax = 0; int ignore_existing = 0; int ignore_non_existing = 0; int need_messages_from_generator = 0; int max_delete = INT_MIN; OFF_T max_size = -1; OFF_T min_size = -1; int ignore_errors = 0; int modify_window = 0; int blocking_io = -1; int checksum_seed = 0; int inplace = 0; int delay_updates = 0; int32 block_size = 0; time_t stop_at_utime = 0; char *skip_compress = NULL; char *copy_as = NULL; item_list dparam_list = EMPTY_ITEM_LIST; /** Network address family. **/ int default_af_hint #ifdef INET6 = 0; /* Any protocol */ #else = AF_INET; /* Must use IPv4 */ # ifdef AF_INET6 # undef AF_INET6 # endif # define AF_INET6 AF_INET /* make -6 option a no-op */ #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 #if defined _WIN32 || defined __WIN32__ = 1; #else = 0; #endif 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 *logfile_name = NULL; char *logfile_format = NULL; char *stdout_format = NULL; char *password_file = NULL; char *early_input_file = NULL; char *rsync_path = RSYNC_PATH; char *backup_dir = NULL; char backup_dir_buf[MAXPATHLEN]; char *sockopts = NULL; char *usermap = NULL; char *groupmap = NULL; int rsync_port = 0; int alt_dest_type = 0; int basis_dir_cnt = 0; #define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024) size_t max_alloc = DEFAULT_MAX_ALLOC; char *max_alloc_arg; static int version_opt_cnt = 0; static int remote_option_alloc = 0; int remote_option_cnt = 0; const char **remote_options = NULL; const char *checksum_choice = NULL; const char *compress_choice = NULL; static const char *empty_argv[1]; int quiet = 0; int output_motd = 1; int log_before_transfer = 0; int stdout_format_has_i = 0; int stdout_format_has_o_or_i = 0; int logfile_format_has_i = 0; int logfile_format_has_o_or_i = 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; int need_unsorted_flist = 0; char *iconv_opt = #ifdef ICONV_OPTION ICONV_OPTION; #else NULL; #endif struct chmod_mode_struct *chmod_modes = NULL; static const char *debug_verbosity[] = { /*0*/ NULL, /*1*/ NULL, /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV", /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME", /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2", /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK", }; #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1) static const char *info_verbosity[1+MAX_VERBOSITY] = { /*0*/ "NONREG", /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE", /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP", }; #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */ short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG]; #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */ #define HELP_PRIORITY 1 /* The help output uses this level. */ #define USER_PRIORITY 2 /* User-specified via --info or --debug */ #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */ #define W_CLI (1<<0) /* client side */ #define W_SRV (1<<1) /* server side */ #define W_SND (1<<2) /* sending side */ #define W_REC (1<<3) /* receiving side */ struct output_struct { char *name; /* The name of the info/debug flag. */ char *help; /* The description of the info/debug flag. */ uchar namelen; /* The length of the name string. */ uchar flag; /* The flag's value, for consistency check. */ uchar where; /* Bits indicating where the flag is used. */ uchar priority; /* See *_PRIORITY defines. */ }; #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 } static struct output_struct info_words[COUNT_INFO+1] = { INFO_WORD(BACKUP, W_REC, "Mention files backed up"), INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"), INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"), INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"), INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"), INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"), INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"), INFO_WORD(NONREG, W_REC, "Mention skipped non-regular files (default 1, 0 disables)"), INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"), INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"), INFO_WORD(SKIP, W_REC, "Mention files skipped due to transfer overrides (levels 1-2)"), INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"), INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"), { NULL, "--info", 0, 0, 0, 0 } }; #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 } static struct output_struct debug_words[COUNT_DEBUG+1] = { DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"), DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"), DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"), DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"), DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"), DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"), DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"), DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"), DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"), DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"), DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-3)"), DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"), DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"), DEBUG_WORD(GENR, W_REC, "Debug generator functions"), DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"), DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"), DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"), DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"), DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"), DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"), DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"), DEBUG_WORD(RECV, W_REC, "Debug receiver functions"), DEBUG_WORD(SEND, W_SND, "Debug sender functions"), DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"), { NULL, "--debug", 0, 0, 0, 0 } }; static int verbose = 0; static int do_stats = 0; static int do_progress = 0; static int daemon_opt; /* sets am_daemon after option error-reporting */ static int F_option_cnt = 0; static int modify_window_set; static int itemize_changes = 0; static int refused_delete, refused_archive_part, refused_compress; static int refused_partial, refused_progress, refused_delete_before; static int refused_delete_during; static int refused_inplace, refused_no_iconv; static BOOL usermap_via_chown, groupmap_via_chown; static char *outbuf_mode; static char *bwlimit_arg, *max_size_arg, *min_size_arg; static char tmp_partialdir[] = ".~tmp~"; /** 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 output_item_help(struct output_struct *words); /* This constructs a string that represents all the options set for either * the --info or --debug setting, skipping any implied options (by -v, etc.). * This is used both when conveying the user's options to the server, and * when the help output wants to tell the user what options are implied. */ static char *make_output_option(struct output_struct *words, short *levels, uchar where) { char *str = words == info_words ? "--info=" : "--debug="; int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0; int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG; char *buf; memset(counts, 0, sizeof counts); for (j = 0; words[j].name; j++) { if (words[j].flag != j) { rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n", words == info_words ? "INFO_" : "DEBUG_", words[j].name, words[j].flag, j); exit_cleanup(RERR_UNSUPPORTED); } if (!(words[j].where & where)) continue; if (words[j].priority == DEFAULT_PRIORITY) { /* Implied items don't need to be mentioned. */ skipped++; continue; } len += len ? 1 : strlen(str); len += strlen(words[j].name); len += levels[j] == 1 ? 0 : 1; if (words[j].priority == HELP_PRIORITY) continue; /* no abbreviating for help */ assert(levels[j] <= MAX_OUT_LEVEL); if (++counts[levels[j]] > max) { /* Determine which level has the most items. */ lev = levels[j]; max = counts[lev]; } } /* Sanity check the COUNT_* define against the length of the table. */ if (j != word_count) { rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n", words == info_words ? "COUNT_INFO" : "COUNT_DEBUG", j, word_count); exit_cleanup(RERR_UNSUPPORTED); } if (!len) return NULL; len++; buf = new_array(char, len); pos = 0; if (skipped || max < 5) lev = -1; else { if (lev == 0) pos += snprintf(buf, len, "%sNONE", str); else if (lev == 1) pos += snprintf(buf, len, "%sALL", str); else pos += snprintf(buf, len, "%sALL%d", str, lev); } for (j = 0; words[j].name && pos < len; j++) { if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where)) continue; if (pos) buf[pos++] = ','; else pos += strlcpy(buf+pos, str, len-pos); if (pos < len) pos += strlcpy(buf+pos, words[j].name, len-pos); /* Level 1 is implied by the name alone. */ if (levels[j] != 1 && pos < len) buf[pos++] = '0' + levels[j]; } buf[pos] = '\0'; return buf; } static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority) { const char *s; int j, len, lev; for ( ; str; str = s) { if ((s = strchr(str, ',')) != NULL) len = s++ - str; else len = strlen(str); if (!len) continue; if (!isDigit(str)) { while (len && isDigit(str+len-1)) len--; } lev = isDigit(str+len) ? atoi(str+len) : 1; if (lev > MAX_OUT_LEVEL) lev = MAX_OUT_LEVEL; if (len == 4 && strncasecmp(str, "help", 4) == 0) { output_item_help(words); exit_cleanup(0); } if (len == 4 && strncasecmp(str, "none", 4) == 0) len = lev = 0; else if (len == 3 && strncasecmp(str, "all", 3) == 0) len = 0; for (j = 0; words[j].name; j++) { if (!len || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) { if (priority >= words[j].priority) { words[j].priority = priority; levels[j] = lev; } if (len) break; } } if (len && !words[j].name && !am_server) { rprintf(FERROR, "Unknown %s item: \"%.*s\"\n", words[j].help, len, str); exit_cleanup(RERR_SYNTAX); } } } /* Tell the user what all the info or debug flags mean. */ static void output_item_help(struct output_struct *words) { short *levels = words == info_words ? info_levels : debug_levels; const char **verbosity = words == info_words ? info_verbosity : debug_verbosity; char buf[128], *opt, *fmt = "%-10s %s\n"; int j; reset_output_levels(); rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n"); rprintf(FINFO, "\n"); for (j = 0; words[j].name; j++) rprintf(FINFO, fmt, words[j].name, words[j].help); rprintf(FINFO, "\n"); snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)", words[j].help, MAX_OUT_LEVEL); rprintf(FINFO, fmt, "ALL", buf); snprintf(buf, sizeof buf, "Silence all %s options (same as all0)", words[j].help); rprintf(FINFO, fmt, "NONE", buf); rprintf(FINFO, fmt, "HELP", "Output this help message"); rprintf(FINFO, "\n"); rprintf(FINFO, "Options added at each level of verbosity:\n"); for (j = 0; j <= MAX_VERBOSITY; j++) { parse_output_words(words, levels, verbosity[j], HELP_PRIORITY); opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC); if (opt) { rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1); free(opt); } reset_output_levels(); } } /* The --verbose option now sets info+debug flags. */ static void set_output_verbosity(int level, uchar priority) { int j; if (level > MAX_VERBOSITY) level = MAX_VERBOSITY; for (j = 0; j <= level; j++) { parse_output_words(info_words, info_levels, info_verbosity[j], priority); parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority); } } /* Limit the info+debug flag levels given a verbose-option level limit. */ void limit_output_verbosity(int level) { short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG]; int j; if (level > MAX_VERBOSITY) return; memset(info_limits, 0, sizeof info_limits); memset(debug_limits, 0, sizeof debug_limits); /* Compute the level limits in the above arrays. */ for (j = 0; j <= level; j++) { parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY); parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY); } for (j = 0; j < COUNT_INFO; j++) { if (info_levels[j] > info_limits[j]) info_levels[j] = info_limits[j]; } for (j = 0; j < COUNT_DEBUG; j++) { if (debug_levels[j] > debug_limits[j]) debug_levels[j] = debug_limits[j]; } } void reset_output_levels(void) { int j; memset(info_levels, 0, sizeof info_levels); memset(debug_levels, 0, sizeof debug_levels); for (j = 0; j < COUNT_INFO; j++) info_words[j].priority = DEFAULT_PRIORITY; for (j = 0; j < COUNT_DEBUG; j++) debug_words[j].priority = DEFAULT_PRIORITY; } void negate_output_levels(void) { int j; for (j = 0; j < COUNT_INFO; j++) info_levels[j] *= -1; for (j = 0; j < COUNT_DEBUG; j++) debug_levels[j] *= -1; } enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM, OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP, OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD, OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE, OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE, OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR, OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS, OPT_OLD_ARGS, OPT_STOP_AFTER, OPT_STOP_AT, OPT_REFUSED_BASE = 9000}; static struct poptOption long_options[] = { /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 }, {"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0}, {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 }, {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 }, {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 }, {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 }, {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 }, {"stderr", 0, POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 }, {"msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 1, 0, 0 }, {"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 }, {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 }, {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 }, {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 }, {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 }, {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0}, {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0}, {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0}, {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 }, {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 }, {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 }, {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 }, {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 }, {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 }, {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 }, {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 }, {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 }, {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 }, {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 }, {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 }, {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 }, {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 }, {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 }, {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 }, {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 }, {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 }, {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 }, {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 }, {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, {"times", 't', POPT_ARG_VAL, &preserve_mtimes, 1, 0, 0 }, {"no-times", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 }, {"no-t", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 }, {"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 }, {"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 }, {"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 }, {"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 }, {"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 }, {"crtimes", 'N', POPT_ARG_VAL, &preserve_crtimes, 1, 0, 0 }, {"no-crtimes", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 }, {"no-N", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 }, {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 }, {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 }, {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 }, {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 }, {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 }, {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 }, {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 }, {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 }, {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 }, {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 }, {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 }, {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 }, {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 }, {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 }, {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 }, {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 }, {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 }, {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 }, {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 }, {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 }, {"copy-devices", 0, POPT_ARG_NONE, ©_devices, 0, 0, 0 }, {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 }, {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 }, {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 }, {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 }, {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 }, {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 }, {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 }, {"copy-links", 'L', POPT_ARG_NONE, ©_links, 0, 0, 0 }, {"copy-unsafe-links",0, POPT_ARG_NONE, ©_unsafe_links, 0, 0, 0 }, {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 }, {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 }, {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 }, {"copy-dirlinks", 'k', POPT_ARG_NONE, ©_dirlinks, 0, 0, 0 }, {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 }, {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 }, {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 }, {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 }, {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 }, {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 }, {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 }, {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 }, {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 }, {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 }, {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 }, {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 }, {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 }, {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 }, {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 }, {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 }, {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 }, {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 }, {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 }, {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 }, {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 }, {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 }, {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 }, {"max-alloc", 0, POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 }, {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 }, {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 }, {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 }, {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0}, {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 }, {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 }, {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 }, {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 }, {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 }, {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 }, {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 }, {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 }, {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 }, {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 }, {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 }, {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 }, {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 }, {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 }, {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */ {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 }, {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 }, {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 }, {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 }, {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 }, {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 }, {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 }, {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 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 }, {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 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 }, {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 }, {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 }, {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 }, {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 }, {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 }, {"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 }, {"block-size", 'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 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 }, {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 }, {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 }, {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 }, {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 }, {"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 }, {"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 }, {"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 }, {"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 }, {"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 }, {"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 }, {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 }, {"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 }, {"zl", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 }, {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 }, {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 }, {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 }, {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 }, {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 }, {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 }, {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 }, {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 }, {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 }, {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 }, {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 }, {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 }, {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 }, {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */ {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 }, {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 }, {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 }, {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 }, {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 }, {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 }, {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 }, {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 }, {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 }, {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 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 }, {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 }, {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 }, {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0}, {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0}, {"old-args", 0, POPT_ARG_NONE, 0, OPT_OLD_ARGS, 0, 0}, {"no-old-args", 0, POPT_ARG_VAL, &old_style_args, 0, 0, 0}, {"secluded-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0}, {"no-secluded-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0}, {"protect-args", 0, POPT_ARG_VAL, &protect_args, 1, 0, 0}, {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0}, {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0}, {"trust-sender", 0, POPT_ARG_VAL, &trust_sender, 1, 0, 0}, {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 }, {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 }, {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 }, {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 }, {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 }, {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 }, {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 }, {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 }, {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 }, {"fsync", 0, POPT_ARG_NONE, &do_fsync, 0, 0, 0 }, {"stop-after", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, {"time-limit", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */ {"stop-at", 0, POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 }, {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 }, {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 }, {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 }, {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 }, {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 }, {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 }, {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 }, {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 }, {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 }, {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 }, {"mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 1, 0, 0 }, {"no-mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 0, 0, 0 }, {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 }, {"copy-as", 0, POPT_ARG_STRING, ©_as, 0, 0, 0 }, {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 }, {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 }, {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 }, {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 }, {"early-input", 0, POPT_ARG_STRING, &early_input_file, 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 }, {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 }, {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 }, {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 }, {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 }, {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 }, {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 }, /* All the following options switch us into daemon-mode option-parsing. */ {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 }, {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 }, {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 }, {"detach", 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 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 }, {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 }, {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 }, {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 }, {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 }, {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 }, {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 }, {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 }, {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 }, {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 }, {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 }, {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 }, {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 }, {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 }, {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 }, {"no-v", 0, POPT_ARG_VAL, &verbose, 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]) { strlcpy(err_buf, "Error parsing options: option may " "be supported on client but not on server?\n", sizeof err_buf); } rprintf(FERROR, RSYNC_NAME ": %s", err_buf); io_flush(MSG_FLUSH); msleep(20); } static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end) { struct poptOption *op; char shortName[2]; int is_wild = strpbrk(ref, "*?[") != NULL; int found_match = 0; shortName[1] = '\0'; if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) { ref = "[ardlptgoD]"; is_wild = 1; } for (op = long_options; op != list_end; op++) { *shortName = op->shortName; if ((op->longName && wildmatch(ref, op->longName)) || (*shortName && wildmatch(ref, shortName))) { if (op->descrip[1] == '*') op->descrip = negated ? "a*" : "r*"; else if (!is_wild) op->descrip = negated ? "a=" : "r="; found_match = 1; if (!is_wild) break; } } if (!found_match) rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref); } /** * Tweak the option table to disable all options that the rsyncd.conf * file has told us to refuse. **/ static void set_refuse_options(void) { struct poptOption *op, *list_end = NULL; char *cp, *ref = lp_refuse_options(module_id); int negated; if (!ref) ref = ""; if (!am_daemon) ref = ""; /* We abuse the descrip field in poptOption to make it easy to flag which options * are refused (since we don't use it otherwise). Start by marking all options * as "a"ccepted with a few options also marked as non-wild. */ for (op = long_options; ; op++) { const char *longName = op->longName ? op->longName : ""; if (!op->longName && !op->shortName) { list_end = op; break; } if (!am_daemon || op->shortName == 'e' /* Required for compatibility flags */ || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */ || op->shortName == 's' /* --secluded-args is always OK */ || op->shortName == 'n' /* --dry-run is always OK */ || strcmp("iconv", longName) == 0 || strcmp("no-iconv", longName) == 0 || strcmp("checksum-seed", longName) == 0 || strcmp("copy-devices", longName) == 0 /* disable wild-match (it gets refused below) */ || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */ || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */ || strcmp("sender", longName) == 0 || strcmp("server", longName) == 0) op->descrip = "a="; /* exact-match only */ else op->descrip = "a*"; /* wild-card-able */ } assert(list_end != NULL); if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */ parse_one_refuse_match(0, "copy-devices", list_end); parse_one_refuse_match(0, "write-devices", list_end); } while (1) { while (*ref == ' ') ref++; if (!*ref) break; if ((cp = strchr(ref, ' ')) != NULL) *cp = '\0'; negated = *ref == '!'; if (negated && ref[1]) ref++; parse_one_refuse_match(negated, ref, list_end); if (!cp) break; *cp = ' '; ref = cp + 1; } if (am_daemon) { #ifdef ICONV_OPTION if (!*lp_charset(module_id)) parse_one_refuse_match(0, "iconv", list_end); #endif parse_one_refuse_match(0, "log-file*", list_end); } #ifndef SUPPORT_ATIMES parse_one_refuse_match(0, "atimes", list_end); #endif #ifndef SUPPORT_HARD_LINKS parse_one_refuse_match(0, "link-dest", list_end); #endif #ifndef HAVE_MKTIME parse_one_refuse_match(0, "stop-at", list_end); #endif #ifndef ICONV_OPTION parse_one_refuse_match(0, "iconv", list_end); #endif #ifndef HAVE_SETVBUF parse_one_refuse_match(0, "outbuf", list_end); #endif #ifndef SUPPORT_CRTIMES parse_one_refuse_match(0, "crtimes", list_end); #endif /* Now we use the descrip values to actually mark the options for refusal. */ for (op = long_options; op != list_end; op++) { int refused = op->descrip[0] == 'r'; op->descrip = NULL; if (!refused) continue; if (op->argInfo == POPT_ARG_VAL) op->argInfo = POPT_ARG_NONE; op->val = (op - long_options) + OPT_REFUSED_BASE; /* The following flags are set to let us easily check an implied option later in the code. */ switch (op->shortName) { case 'r': case 'd': case 'l': case 'p': case 't': case 'g': case 'o': case 'D': refused_archive_part = op->val; break; case 'z': refused_compress = op->val; break; case '\0': if (strcmp("delete", op->longName) == 0) refused_delete = op->val; else if (strcmp("delete-before", op->longName) == 0) refused_delete_before = op->val; else if (strcmp("delete-during", op->longName) == 0) refused_delete_during = op->val; else if (strcmp("partial", op->longName) == 0) refused_partial = op->val; else if (strcmp("progress", op->longName) == 0) refused_progress = op->val; else if (strcmp("inplace", op->longName) == 0) refused_inplace = op->val; else if (strcmp("no-iconv", op->longName) == 0) refused_no_iconv = op->val; break; } } } static int count_args(const char **argv) { int i = 0; if (argv) { while (argv[i] != NULL) i++; } return i; } /* If the size_arg is an invalid string or the value is < min_value, an error * is put into err_buf & the return is -1. Note that this parser does NOT * support negative numbers, so a min_value < 0 doesn't make any sense. */ static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name, ssize_t min_value, ssize_t max_value, BOOL unlimited_0) { int reps, mult, len; const char *arg, *err = "invalid", *min_max = NULL; ssize_t limit = -1, size = 1; for (arg = size_arg; isDigit(arg); arg++) {} if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */ for (arg++; isDigit(arg); arg++) {} switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) { case 'b': case 'B': reps = 0; break; case 'k': case 'K': reps = 1; break; case 'm': case 'M': reps = 2; break; case 'g': case 'G': reps = 3; break; case 't': case 'T': reps = 4; break; case 'p': case 'P': reps = 5; break; default: goto failure; } if (*arg == 'b' || *arg == 'B') mult = 1000, arg++; else if (!*arg || *arg == '+' || *arg == '-') mult = 1024; else if (strncasecmp(arg, "ib", 2) == 0) mult = 1024, arg += 2; else goto failure; while (reps--) size *= mult; size *= atof(size_arg); if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg) size += atoi(arg), arg += 2; if (*arg) goto failure; if (size < 0 || (max_value >= 0 && size > max_value)) { err = "too large"; min_max = "max"; limit = max_value; goto failure; } if (size < min_value && (!unlimited_0 || size != 0)) { err = "too small"; min_max = "min"; limit = min_value; goto failure; } return size; failure: len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err); if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) { len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)", min_max, do_big_num(limit, 3, NULL), unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : ""); } err_buf[len] = '\n'; err_buf[len+1] = '\0'; return -1; } #ifdef HAVE_MKTIME /* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while * also allowing abbreviated data. For instance, if the time is omitted, * it defaults to midnight. If the date is omitted, it defaults to the * next possible date in the future with the specified time. Even the * year or year-month can be omitted, again defaulting to the next date * in the future that matches the specified information. A 2-digit year * is also OK, as is using '/' instead of '-'. */ static time_t parse_time(const char *arg) { const char *cp; time_t val, now = time(NULL); struct tm t, *today = localtime(&now); int in_date, old_mday, n; memset(&t, 0, sizeof t); t.tm_year = t.tm_mon = t.tm_mday = -1; t.tm_hour = t.tm_min = t.tm_isdst = -1; cp = arg; if (*cp == 'T' || *cp == 't' || *cp == ':') { in_date = *cp == ':' ? 0 : -1; cp++; } else in_date = 1; for ( ; ; cp++) { if (!isDigit(cp)) return (time_t)-1; n = 0; do { n = n * 10 + *cp++ - '0'; } while (isDigit(cp)); if (*cp == ':') in_date = 0; if (in_date > 0) { if (t.tm_year != -1) return (time_t)-1; t.tm_year = t.tm_mon; t.tm_mon = t.tm_mday; t.tm_mday = n; if (!*cp) break; if (*cp == 'T' || *cp == 't') { if (!cp[1]) break; in_date = -1; } else if (*cp != '-' && *cp != '/') return (time_t)-1; continue; } if (t.tm_hour != -1) return (time_t)-1; t.tm_hour = t.tm_min; t.tm_min = n; if (!*cp) { if (in_date < 0) return (time_t)-1; break; } if (*cp != ':') return (time_t)-1; in_date = 0; } in_date = 0; if (t.tm_year < 0) { t.tm_year = today->tm_year; in_date = 1; } else if (t.tm_year < 100) { while (t.tm_year < today->tm_year) t.tm_year += 100; } else t.tm_year -= 1900; if (t.tm_mon < 0) { t.tm_mon = today->tm_mon; in_date = 2; } else t.tm_mon--; if (t.tm_mday < 0) { t.tm_mday = today->tm_mday; in_date = 3; } n = 0; if (t.tm_min < 0) { t.tm_hour = t.tm_min = 0; } else if (t.tm_hour < 0) { if (in_date != 3) return (time_t)-1; in_date = 0; t.tm_hour = today->tm_hour; n = 60*60; } /* Note that mktime() might change a too-large tm_mday into the start of * the following month which we need to undo in the following code! */ old_mday = t.tm_mday; if (t.tm_hour > 23 || t.tm_min > 59 || t.tm_mon < 0 || t.tm_mon >= 12 || t.tm_mday < 1 || t.tm_mday > 31 || (val = mktime(&t)) == (time_t)-1) return (time_t)-1; while (in_date && (val <= now || t.tm_mday < old_mday)) { switch (in_date) { case 3: old_mday = ++t.tm_mday; break; case 2: if (t.tm_mday < old_mday) t.tm_mday = old_mday; /* The month already got bumped forward */ else if (++t.tm_mon == 12) { t.tm_mon = 0; t.tm_year++; } break; case 1: if (t.tm_mday < old_mday) { /* mon==1 mday==29 got bumped to mon==2 */ if (t.tm_mon != 2 || old_mday != 29) return (time_t)-1; t.tm_mon = 1; t.tm_mday = 29; } t.tm_year++; break; } if ((val = mktime(&t)) == (time_t)-1) { /* This code shouldn't be needed, as mktime() should auto-round to the next month. */ if (in_date != 3 || t.tm_mday <= 28) return (time_t)-1; t.tm_mday = old_mday = 1; in_date = 2; } } if (n) { while (val <= now) val += n; } return val; } #endif static void create_refuse_error(int which) { const char *msg; if (am_daemon) msg = "The server is configured to refuse"; else if (am_server) msg = "The server does not support"; else msg = "This rsync does not support"; /* The "which" value is the index + OPT_REFUSED_BASE. */ struct poptOption *op = &long_options[which - OPT_REFUSED_BASE]; int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1; if (op->shortName) snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName); } /* This is used to make sure that --daemon & --server cannot be aliased to * something else. These options have always disabled popt aliases for the * parsing of a daemon or server command-line, but we have to make sure that * these options cannot vanish so that the alias disabling can take effect. */ static void popt_unalias(poptContext con, const char *opt) { struct poptAlias unalias; memset(&unalias, 0, sizeof unalias); unalias.longName = opt + 2; /* point past the leading "--" */ unalias.argc = 1; unalias.argv = new_array0(const char*, 2); unalias.argv[0] = strdup(opt); poptAddAlias(con, unalias, 0); } char *alt_dest_opt(int type) { if (!type) type = alt_dest_type; switch (type) { case COMPARE_DEST: return "--compare-dest"; case COPY_DEST: return "--copy-dest"; case LINK_DEST: return "--link-dest"; default: NOISY_DEATH("Unknown alt_dest_opt type"); } } /** * 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_p, const char ***argv_p) { poptContext pc; const char *arg, **argv = *argv_p; int argc = *argc_p; int opt, want_dest_type; int orig_protect_args = protect_args; if (argc == 0) { strlcpy(err_buf, "argc is zero!\n", sizeof err_buf); return 0; } set_refuse_options(); #ifdef ICONV_OPTION if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg) iconv_opt = strdup(arg); #endif /* TODO: Call poptReadDefaultConfig; handle errors. */ pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0); if (!am_server) { poptReadDefaultConfig(pc, 0); popt_unalias(pc, "--daemon"); popt_unalias(pc, "--server"); } while ((opt = poptGetNextOpt(pc)) != -1) { /* most options are handled automatically by popt; * only special cases are returned and listed here. */ switch (opt) { case 'V': version_opt_cnt++; break; case OPT_SERVER: if (!am_server) { /* Disable popt aliases on the server side and * then start parsing the options again. */ poptFreeContext(pc); pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0); am_server = 1; } #ifdef ICONV_OPTION iconv_opt = NULL; #endif break; case OPT_SENDER: if (!am_server) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } am_sender = 1; break; case OPT_DAEMON: if (am_daemon) { strlcpy(err_buf, "Attempt to hack rsync thwarted!\n", sizeof err_buf); goto cleanup; } #ifdef ICONV_OPTION iconv_opt = NULL; #endif protect_args = 0; poptFreeContext(pc); pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0); while ((opt = poptGetNextOpt(pc)) != -1) { char **cpp; switch (opt) { case 'h': daemon_usage(FINFO); exit_cleanup(0); case 'M': arg = poptGetOptArg(pc); if (!strchr(arg, '=')) { rprintf(FERROR, "--dparam value is missing an '=': %s\n", arg); goto daemon_error; } cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4); *cpp = strdup(arg); break; case 'v': verbose++; break; default: rprintf(FERROR, "rsync: %s: %s (in daemon mode)\n", poptBadOption(pc, POPT_BADOPTION_NOALIAS), poptStrerror(opt)); goto daemon_error; } } if (dparam_list.count && !set_dparams(1)) exit_cleanup(RERR_SYNTAX); if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) { snprintf(err_buf, sizeof err_buf, "the --temp-dir path is WAY too long.\n"); goto cleanup; } 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); if (!argc) { *argv_p = empty_argv; *argc_p = 0; } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0) out_of_memory("parse_arguments"); argv = *argv_p; poptFreeContext(pc); am_starting_up = 0; 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_FILTER: parse_filter_str(&filter_list, poptGetOptArg(pc), rule_template(0), 0); break; case OPT_EXCLUDE: parse_filter_str(&filter_list, poptGetOptArg(pc), rule_template(0), XFLG_OLD_PREFIXES); break; case OPT_INCLUDE: parse_filter_str(&filter_list, poptGetOptArg(pc), rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES); break; case OPT_EXCLUDE_FROM: case OPT_INCLUDE_FROM: arg = poptGetOptArg(pc); if (sanitize_paths) arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT); if (daemon_filter_list.head) { int rej; char *cp = strdup(arg); if (!*cp) rej = 1; else { char *dir = cp + (*cp == '/' ? module_dirlen : 0); clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS); rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0; } free(cp); if (rej) goto options_rejected; } parse_filter_file(&filter_list, arg, rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0), XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES); break; case 'a': if (refused_archive_part) { create_refuse_error(refused_archive_part); goto cleanup; } if (!recurse) /* preserve recurse == 2 */ recurse = 1; #ifdef SUPPORT_LINKS preserve_links = 1; #endif preserve_perms = 1; preserve_mtimes = 1; preserve_gid = 1; preserve_uid = 1; preserve_devices = 1; preserve_specials = 1; break; case 'D': preserve_devices = preserve_specials = 1; break; case OPT_NO_D: preserve_devices = preserve_specials = 0; break; case 'h': human_readable++; break; case 'H': preserve_hard_links++; break; case 'i': itemize_changes++; break; case 'U': if (++preserve_atimes > 1) open_noatime = 1; break; case 'v': verbose++; break; case 'y': fuzzy_basis++; break; case 'q': quiet++; break; case 'x': one_file_system++; break; case 'F': switch (++F_option_cnt) { case 1: parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0); break; case 2: parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0); break; } break; case 'P': if (refused_partial || refused_progress) { create_refuse_error(refused_partial ? refused_partial : refused_progress); goto cleanup; } do_progress = 1; keep_partial = 1; break; case 'z': do_compression++; break; case OPT_OLD_COMPRESS: compress_choice = "zlib"; break; case OPT_NEW_COMPRESS: compress_choice = "zlibx"; break; case OPT_NO_COMPRESS: do_compression = 0; compress_choice = NULL; break; case OPT_OLD_ARGS: if (old_style_args <= 0) old_style_args = 1; else old_style_args++; break; case 'M': arg = poptGetOptArg(pc); if (*arg != '-') { snprintf(err_buf, sizeof err_buf, "Remote option must start with a dash: %s\n", arg); goto cleanup; } if (remote_option_cnt+2 >= remote_option_alloc) { remote_option_alloc += 16; remote_options = realloc_array(remote_options, const char *, remote_option_alloc); if (!remote_option_cnt) remote_options[0] = "ARG0"; } remote_options[++remote_option_cnt] = arg; remote_options[remote_option_cnt+1] = NULL; break; case OPT_WRITE_BATCH: /* batch_name is already set */ write_batch = 1; break; case OPT_ONLY_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_NO_ICONV: #ifdef ICONV_OPTION iconv_opt = NULL; #endif break; case OPT_BLOCK_SIZE: { /* We may not know the real protocol_version at this point if this is the client * option parsing, but we still want to check it so that the client can specify * a --protocol=29 option with a larger block size. */ int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE; ssize_t size; arg = poptGetOptArg(pc); if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0) goto cleanup; block_size = (int32)size; break; } case OPT_MAX_SIZE: if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0) goto cleanup; max_size_arg = strdup(do_big_num(max_size, 0, NULL)); break; case OPT_MIN_SIZE: if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0) goto cleanup; min_size_arg = strdup(do_big_num(min_size, 0, NULL)); break; case OPT_BWLIMIT: { ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True); if (size < 0) goto cleanup; bwlimit_arg = strdup(do_big_num(size, 0, NULL)); bwlimit = (size + 512) / 1024; break; } case OPT_APPEND: if (am_server) append_mode++; else append_mode = 1; break; case OPT_LINK_DEST: want_dest_type = LINK_DEST; goto set_dest_dir; case OPT_COPY_DEST: want_dest_type = COPY_DEST; goto set_dest_dir; case OPT_COMPARE_DEST: want_dest_type = COMPARE_DEST; set_dest_dir: if (alt_dest_type && alt_dest_type != want_dest_type) { snprintf(err_buf, sizeof err_buf, "ERROR: the %s option conflicts with the %s option\n", alt_dest_opt(want_dest_type), alt_dest_opt(0)); goto cleanup; } alt_dest_type = want_dest_type; 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, alt_dest_opt(0)); goto cleanup; } /* We defer sanitizing this arg until we know what * our destination directory is going to be. */ basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc); break; case OPT_CHMOD: arg = poptGetOptArg(pc); if (!parse_chmod(arg, &chmod_modes)) { snprintf(err_buf, sizeof err_buf, "Invalid argument passed to --chmod (%s)\n", arg); goto cleanup; } break; case OPT_INFO: arg = poptGetOptArg(pc); parse_output_words(info_words, info_levels, arg, USER_PRIORITY); break; case OPT_DEBUG: arg = poptGetOptArg(pc); parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY); break; case OPT_USERMAP: if (usermap) { if (usermap_via_chown) { snprintf(err_buf, sizeof err_buf, "--usermap conflicts with prior --chown.\n"); goto cleanup; } snprintf(err_buf, sizeof err_buf, "You can only specify --usermap once.\n"); goto cleanup; } usermap = (char *)poptGetOptArg(pc); usermap_via_chown = False; preserve_uid = 1; break; case OPT_GROUPMAP: if (groupmap) { if (groupmap_via_chown) { snprintf(err_buf, sizeof err_buf, "--groupmap conflicts with prior --chown.\n"); goto cleanup; } snprintf(err_buf, sizeof err_buf, "You can only specify --groupmap once.\n"); goto cleanup; } groupmap = (char *)poptGetOptArg(pc); groupmap_via_chown = False; preserve_gid = 1; break; case OPT_CHOWN: { const char *chown = poptGetOptArg(pc); int len; if ((arg = strchr(chown, ':')) != NULL) len = arg++ - chown; else len = strlen(chown); if (len) { if (usermap) { if (!usermap_via_chown) { snprintf(err_buf, sizeof err_buf, "--chown conflicts with prior --usermap.\n"); goto cleanup; } snprintf(err_buf, sizeof err_buf, "You can only specify a user-affecting --chown once.\n"); goto cleanup; } if (asprintf(&usermap, "*:%.*s", len, chown) < 0) out_of_memory("parse_arguments"); usermap_via_chown = True; preserve_uid = 1; } if (arg && *arg) { if (groupmap) { if (!groupmap_via_chown) { snprintf(err_buf, sizeof err_buf, "--chown conflicts with prior --groupmap.\n"); goto cleanup; } snprintf(err_buf, sizeof err_buf, "You can only specify a group-affecting --chown once.\n"); goto cleanup; } if (asprintf(&groupmap, "*:%s", arg) < 0) out_of_memory("parse_arguments"); groupmap_via_chown = True; preserve_gid = 1; } break; } case OPT_HELP: usage(FINFO); exit_cleanup(0); case 'A': #ifdef SUPPORT_ACLS preserve_acls = 1; preserve_perms = 1; break; #else /* FIXME: this should probably be ignored with a * warning and then countermeasures taken to * restrict group and other access in the presence * of any more restrictive ACLs, but this is safe * for now */ snprintf(err_buf,sizeof(err_buf), "ACLs are not supported on this %s\n", am_server ? "server" : "client"); goto cleanup; #endif case 'X': #ifdef SUPPORT_XATTRS preserve_xattrs++; break; #else snprintf(err_buf,sizeof(err_buf), "extended attributes are not supported on this %s\n", am_server ? "server" : "client"); goto cleanup; #endif case OPT_STOP_AFTER: { long val; arg = poptGetOptArg(pc); stop_at_utime = time(NULL); if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) { snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg); goto cleanup; } stop_at_utime += val; break; } #ifdef HAVE_MKTIME case OPT_STOP_AT: arg = poptGetOptArg(pc); if ((stop_at_utime = parse_time(arg)) == (time_t)-1) { snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg); goto cleanup; } if (stop_at_utime <= time(NULL)) { snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg); goto cleanup; } break; #endif case OPT_STDERR: { int len; arg = poptGetOptArg(pc); len = strlen(arg); if (len && strncmp("errors", arg, len) == 0) msgs2stderr = 2; else if (len && strncmp("all", arg, len) == 0) msgs2stderr = 1; else if (len && strncmp("client", arg, len) == 0) msgs2stderr = 0; else { snprintf(err_buf, sizeof err_buf, "--stderr mode \"%s\" is not one of errors, all, or client\n", arg); goto cleanup; } saw_stderr_opt = 1; break; } default: /* A large opt value means that set_refuse_options() * turned this option off. */ if (opt >= OPT_REFUSED_BASE) { create_refuse_error(opt); goto cleanup; } snprintf(err_buf, sizeof err_buf, "%s%s: %s\n", am_server ? "on remote machine: " : "", poptBadOption(pc, POPT_BADOPTION_NOALIAS), poptStrerror(opt)); goto cleanup; } } if (msgs2stderr != 2) saw_stderr_opt = 1; if (version_opt_cnt) { print_rsync_version(version_opt_cnt > 1 && !am_server ? FNONE : FINFO); exit_cleanup(0); } if (!max_alloc_arg) { max_alloc_arg = getenv("RSYNC_MAX_ALLOC"); if (max_alloc_arg && !*max_alloc_arg) max_alloc_arg = NULL; } if (max_alloc_arg) { ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True); if (size < 0) goto cleanup; max_alloc = size; } if (old_style_args < 0) { if (!am_server && protect_args <= 0 && (arg = getenv("RSYNC_OLD_ARGS")) != NULL && *arg) { protect_args = 0; old_style_args = atoi(arg); } else old_style_args = 0; } else if (old_style_args) { if (protect_args > 0) { snprintf(err_buf, sizeof err_buf, "--secluded-args conflicts with --old-args.\n"); goto cleanup; } protect_args = 0; } if (protect_args < 0) { if (am_server) protect_args = 0; else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg) protect_args = atoi(arg) ? 1 : 0; else { #ifdef RSYNC_USE_SECLUDED_ARGS protect_args = 1; #else protect_args = 0; #endif } } if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) { /* Call this early to verify the args and figure out if we need to force * --whole-file. Note that the parse function will get called again later, * just in case an "auto" choice needs to know the protocol_version. */ parse_checksum_choice(0); } else checksum_choice = NULL; if (human_readable > 1 && argc == 2 && !am_server) { /* Allow the old meaning of 'h' (--help) on its own. */ usage(FINFO); exit_cleanup(0); } if (!compress_choice && do_compression > 1) compress_choice = "zlibx"; if (compress_choice && strcasecmp(compress_choice, "auto") != 0) parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */ else compress_choice = NULL; if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) { if (!do_compression) do_compression = CPRES_AUTO; if (do_compression && refused_compress) { create_refuse_error(refused_compress); goto cleanup; } } #ifdef HAVE_SETVBUF if (outbuf_mode && !am_server) { int mode = *(uchar *)outbuf_mode; if (islower(mode)) mode = toupper(mode); fflush(stdout); /* Just in case... */ switch (mode) { case 'N': /* None */ case 'U': /* Unbuffered */ mode = _IONBF; break; case 'L': /* Line */ mode = _IOLBF; break; case 'B': /* Block */ case 'F': /* Full */ mode = _IOFBF; break; default: snprintf(err_buf, sizeof err_buf, "Invalid --outbuf setting -- specify N, L, or B.\n"); goto cleanup; } setvbuf(stdout, (char *)NULL, mode, 0); } if (msgs2stderr == 1) { /* Are all messages going to stderr? */ /* Make stderr line buffered for better sharing of the stream. */ fflush(stderr); /* Just in case... */ setvbuf(stderr, (char *)NULL, _IOLBF, 0); } #endif set_output_verbosity(verbose, DEFAULT_PRIORITY); if (do_stats) { parse_output_words(info_words, info_levels, verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY); } #ifdef ICONV_OPTION if (iconv_opt && protect_args != 2) { if (!am_server && strcmp(iconv_opt, "-") == 0) iconv_opt = NULL; else need_unsorted_flist = 1; } if (refused_no_iconv && !iconv_opt) { create_refuse_error(refused_no_iconv); goto cleanup; } #endif if (fuzzy_basis > 1) fuzzy_basis = basis_dir_cnt + 1; /* Don't let the client reset protect_args if it was already processed */ if (orig_protect_args == 2 && am_server) protect_args = orig_protect_args; if (protect_args == 1 && am_server) { poptFreeContext(pc); return 1; } /* Because popt 1.19 has started to free the returned args data, we now * make a copy of the array and then do an immediate cleanup. */ argv = poptGetArgs(pc); argc = count_args(argv); if (!argc) { *argv_p = empty_argv; *argc_p = 0; } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0) out_of_memory("parse_arguments"); argv = *argv_p; poptFreeContext(pc); pc = NULL; #ifndef 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"); goto cleanup; } #endif #ifndef 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"); goto cleanup; } #endif #ifdef SUPPORT_XATTRS if (am_root < 0 && preserve_xattrs > 1) { snprintf(err_buf, sizeof err_buf, "--fake-super conflicts with -XX\n"); goto cleanup; } #else if (am_root < 0) { snprintf(err_buf, sizeof err_buf, "--fake-super requires an rsync with extended attributes enabled\n"); goto cleanup; } #endif if (write_batch && read_batch) { snprintf(err_buf, sizeof err_buf, "--write-batch and --read-batch can not be used together\n"); goto cleanup; } if (write_batch > 0 || read_batch) { 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; } else if (dry_run) write_batch = 0; } else if (write_batch < 0 && dry_run) write_batch = 0; if (read_batch && files_from) { snprintf(err_buf, sizeof err_buf, "--read-batch cannot be used with --files-from\n"); goto cleanup; } if (read_batch && remove_source_files) { snprintf(err_buf, sizeof err_buf, "--read-batch cannot be used with --remove-%s-files\n", remove_source_files == 1 ? "source" : "sent"); goto cleanup; } 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); goto cleanup; } if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) { snprintf(err_buf, sizeof err_buf, "the --temp-dir path is WAY too long.\n"); goto cleanup; } if (max_delete < 0 && max_delete != INT_MIN) { /* Negative numbers are treated as "no deletions". */ max_delete = 0; } if (files_from) { if (recurse == 1) /* preserve recurse == 2 */ recurse = 0; if (xfer_dirs < 0) xfer_dirs = 1; } if (argc < 2 && !read_batch && !am_server) list_only |= 1; if (xfer_dirs >= 4) { parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0); recurse = xfer_dirs = 1; } else if (recurse) xfer_dirs = 1; else if (xfer_dirs < 0) xfer_dirs = list_only ? 1 : 0; if (relative_paths < 0) relative_paths = files_from? 1 : 0; if (!relative_paths) implied_dirs = 0; if (delete_before + !!delete_during + delete_after > 1) { snprintf(err_buf, sizeof err_buf, "You may not combine multiple --delete-WHEN options.\n"); goto cleanup; } if (delete_before || delete_during || delete_after) delete_mode = 1; else if (delete_mode || delete_excluded) { /* Only choose now between before & during if one is refused. */ if (refused_delete_before) { if (!refused_delete_during) delete_during = 1; else { create_refuse_error(refused_delete_before); goto cleanup; } } else if (refused_delete_during) delete_before = 1; delete_mode = 1; } if (!xfer_dirs && delete_mode) { snprintf(err_buf, sizeof err_buf, "--delete does not work without --recursive (-r) or --dirs (-d).\n"); goto cleanup; } if (missing_args == 3) /* simplify if both options were specified */ missing_args = 2; if (refused_delete && (delete_mode || missing_args == 2)) { create_refuse_error(refused_delete); goto cleanup; } if (remove_source_files) { /* We only want to infer this refusal of --remove-source-files * via the refusal of "delete", not any of the "delete-FOO" * options. */ if (refused_delete && am_sender) { create_refuse_error(refused_delete); goto cleanup; } need_messages_from_generator = 1; } if (munge_symlinks && !am_daemon) { STRUCT_STAT st; char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */ strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */ if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) { rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n", prefix); exit_cleanup(RERR_UNSUPPORTED); } } if (sanitize_paths) { int i; for (i = argc; i-- > 0; ) argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS); if (tmpdir) tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT); if (backup_dir) backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT); } if (daemon_filter_list.head && !am_sender) { filter_rule_list *elp = &daemon_filter_list; if (tmpdir) { char *dir; if (!*tmpdir) goto options_rejected; dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0); clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS); if (check_filter(elp, FLOG, dir, 1) < 0) goto options_rejected; } if (backup_dir) { char *dir; if (!*backup_dir) goto options_rejected; dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0); clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS); if (check_filter(elp, FLOG, dir, 1) < 0) goto options_rejected; } } 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); goto cleanup; } if (backup_dir) { size_t len; make_backups = 1; /* --backup-dir implies --backup */ while (*backup_dir == '.' && backup_dir[1] == '/') backup_dir += 2; if (*backup_dir == '.' && backup_dir[1] == '\0') backup_dir++; len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf); if (len > sizeof backup_dir_buf - 128) { snprintf(err_buf, sizeof err_buf, "the --backup-dir path is WAY too long.\n"); goto cleanup; } backup_dir_len = (int)len; if (!backup_dir_len) { backup_dir_len = -1; backup_dir = NULL; } else if (backup_dir_buf[backup_dir_len - 1] != '/') { backup_dir_buf[backup_dir_len++] = '/'; backup_dir_buf[backup_dir_len] = '\0'; } backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len; } if (backup_dir) { /* No need for a suffix or a protect rule. */ } else if (!backup_suffix_len && (!am_server || !am_sender)) { snprintf(err_buf, sizeof err_buf, "--suffix cannot be empty %s\n", backup_dir_len < 0 ? "when --backup-dir is the same as the dest dir" : "without a --backup-dir"); goto cleanup; } else if (make_backups && delete_mode && !delete_excluded && !am_server) { snprintf(backup_dir_buf, sizeof backup_dir_buf, "P *%s", backup_suffix); parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0); } if (make_backups && !backup_dir) omit_dir_times = -1; /* Implied, so avoid -O to sender. */ if (stdout_format) { if (am_server && log_format_has(stdout_format, 'I')) stdout_format_has_i = 2; else if (log_format_has(stdout_format, 'i')) stdout_format_has_i = itemize_changes | 1; if (!log_format_has(stdout_format, 'b') && !log_format_has(stdout_format, 'c') && !log_format_has(stdout_format, 'C')) log_before_transfer = !am_server; } else if (itemize_changes) { stdout_format = "%i %n%L"; stdout_format_has_i = itemize_changes; log_before_transfer = !am_server; } if (do_progress && !am_server) { if (!log_before_transfer && INFO_EQ(NAME, 0)) parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY); parse_output_words(info_words, info_levels, "FLIST2,PROGRESS", DEFAULT_PRIORITY); } if (dry_run) do_xfers = 0; set_io_timeout(io_timeout); if (INFO_GTE(NAME, 1) && !stdout_format) { stdout_format = "%n%L"; log_before_transfer = !am_server; } if (stdout_format_has_i || log_format_has(stdout_format, 'o')) stdout_format_has_o_or_i = 1; if (logfile_name && !am_daemon) { if (!logfile_format) { logfile_format = "%i %n%L"; logfile_format_has_i = logfile_format_has_o_or_i = 1; } else { if (log_format_has(logfile_format, 'i')) logfile_format_has_i = 1; if (logfile_format_has_i || log_format_has(logfile_format, 'o')) logfile_format_has_o_or_i = 1; } log_init(0); } else if (!am_daemon) logfile_format = NULL; 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 (append_mode) { if (whole_file > 0) { snprintf(err_buf, sizeof err_buf, "--append cannot be used with --whole-file\n"); goto cleanup; } if (refused_inplace) { create_refuse_error(refused_inplace); goto cleanup; } inplace = 1; } if (write_devices) { if (refused_inplace) { create_refuse_error(refused_inplace); goto cleanup; } inplace = 1; } if (delay_updates && !partial_dir) partial_dir = tmp_partialdir; if (inplace) { #ifdef HAVE_FTRUNCATE if (partial_dir) { snprintf(err_buf, sizeof err_buf, "--%s cannot be used with --%s\n", append_mode ? "append" : "inplace", delay_updates ? "delay-updates" : "partial-dir"); goto cleanup; } /* --inplace implies --partial for refusal purposes, but we * clear the keep_partial flag for internal logic purposes. */ if (refused_partial) { create_refuse_error(refused_partial); goto cleanup; } keep_partial = 0; #else snprintf(err_buf, sizeof err_buf, "--%s is not supported on this %s\n", append_mode ? "append" : "inplace", am_server ? "server" : "client"); goto cleanup; #endif } else { if (keep_partial && !partial_dir && !am_server) { if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg) partial_dir = strdup(arg); } if (partial_dir) { if (*partial_dir) clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS); if (!*partial_dir || strcmp(partial_dir, ".") == 0) partial_dir = NULL; if (!partial_dir && refused_partial) { create_refuse_error(refused_partial); goto cleanup; } keep_partial = 1; } } if (files_from) { char *h, *p; int q; if (argc > 2 || (!am_daemon && !am_server && argc == 1)) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } if (strcmp(files_from, "-") == 0) { filesfrom_fd = 0; if (am_server) filesfrom_host = ""; /* reading from socket */ } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) { if (am_server) { snprintf(err_buf, sizeof err_buf, "The --files-from sent to the server cannot specify a host.\n"); goto cleanup; } files_from = p; filesfrom_host = h; if (strcmp(files_from, "-") == 0) { snprintf(err_buf, sizeof err_buf, "Invalid --files-from remote filename\n"); goto cleanup; } } else { if (sanitize_paths) files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT); if (daemon_filter_list.head) { char *dir; if (!*files_from) goto options_rejected; dir = files_from + (*files_from == '/' ? module_dirlen : 0); clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS); if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0) goto options_rejected; } 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)); goto cleanup; } } } if (trust_sender || am_server || read_batch) trust_sender_args = trust_sender_filter = 1; else if (old_style_args || filesfrom_host != NULL) trust_sender_args = 1; am_starting_up = 0; return 1; options_rejected: snprintf(err_buf, sizeof err_buf, "Your options have been rejected by the server.\n"); cleanup: if (pc) poptFreeContext(pc); return 0; } static char SPLIT_ARG_WHEN_OLD[1]; /** * Do backslash quoting of any weird chars in "arg", append the resulting * string to the end of the "opt" (which gets a "=" appended if it is not * an empty or NULL string), and return the (perhaps malloced) result. * If opt is NULL, arg is considered a filename arg that allows wildcards. * If it is "" or any other value, it is considered an option. **/ char *safe_arg(const char *opt, const char *arg) { #define SHELL_CHARS "!#$&;|<>(){}\"'` \t\\" #define WILD_CHARS "*?[]" /* We don't allow remote brace expansion */ BOOL is_filename_arg = !opt; char *escapes = is_filename_arg ? SHELL_CHARS : WILD_CHARS SHELL_CHARS; BOOL escape_leading_dash = is_filename_arg && *arg == '-'; BOOL escape_leading_tilde = 0; int len1 = opt && *opt ? strlen(opt) + 1 : 0; int len2 = strlen(arg); int extras = escape_leading_dash ? 2 : 0; char *ret; if (!protect_args && old_style_args < 2 && (!old_style_args || (!is_filename_arg && opt != SPLIT_ARG_WHEN_OLD))) { const char *f; if (*arg == '~' && is_filename_arg && !am_sender && !trust_sender_args && ((relative_paths && !strstr(arg, "/./")) || !strchr(arg, '/'))) { extras++; escape_leading_tilde = 1; } for (f = arg; *f; f++) { if (strchr(escapes, *f)) extras++; } } if (!len1 && !extras) return (char*)arg; ret = new_array(char, len1 + len2 + extras + 1); if (len1) { memcpy(ret, opt, len1-1); ret[len1-1] = '='; } if (escape_leading_dash) { ret[len1++] = '.'; ret[len1++] = '/'; extras -= 2; } if (!extras) memcpy(ret + len1, arg, len2); else { const char *f = arg; char *t = ret + len1; if (escape_leading_tilde) *t++ = '\\'; while (*f) { if (*f == '\\') { if (!is_filename_arg || !strchr(WILD_CHARS, f[1])) *t++ = '\\'; } else if (strchr(escapes, *f)) *t++ = '\\'; *t++ = *f++; } } ret[len1+len2+extras] = '\0'; return ret; } /** * 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_p) { static char argstr[64]; int ac = *argc_p; uchar where; char *arg; int i, x; /* This should always remain first on the server's command-line. */ args[ac++] = "--server"; if (!am_sender) args[ac++] = "--sender"; x = 1; argstr[0] = '-'; if (protect_args) argstr[x++] = 's'; for (i = 0; i < verbose; i++) argstr[x++] = 'v'; if (quiet && msgs2stderr) argstr[x++] = 'q'; if (make_backups) argstr[x++] = 'b'; if (update_only) argstr[x++] = 'u'; if (!do_xfers) /* Note: NOT "dry_run"! */ argstr[x++] = 'n'; if (preserve_links) argstr[x++] = 'l'; if ((xfer_dirs >= 2 && xfer_dirs < 4) || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender)))) argstr[x++] = 'd'; if (am_sender) { if (keep_dirlinks) argstr[x++] = 'K'; if (prune_empty_dirs) argstr[x++] = 'm'; if (omit_dir_times > 0) argstr[x++] = 'O'; if (omit_link_times) argstr[x++] = 'J'; if (fuzzy_basis) { argstr[x++] = 'y'; if (fuzzy_basis > 1) argstr[x++] = 'y'; } } else { if (copy_links) argstr[x++] = 'L'; if (copy_dirlinks) 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_hard_links > 1) argstr[x++] = 'H'; } if (preserve_uid) argstr[x++] = 'o'; if (preserve_gid) argstr[x++] = 'g'; if (preserve_devices) /* ignore preserve_specials here */ argstr[x++] = 'D'; if (preserve_mtimes) argstr[x++] = 't'; if (preserve_atimes) { argstr[x++] = 'U'; if (preserve_atimes > 1) argstr[x++] = 'U'; } #ifdef SUPPORT_CRTIMES if (preserve_crtimes) argstr[x++] = 'N'; #endif if (preserve_perms) argstr[x++] = 'p'; else if (preserve_executability && am_sender) argstr[x++] = 'E'; #ifdef SUPPORT_ACLS if (preserve_acls) argstr[x++] = 'A'; #endif #ifdef SUPPORT_XATTRS if (preserve_xattrs) { argstr[x++] = 'X'; if (preserve_xattrs > 1) argstr[x++] = 'X'; } #endif 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 (one_file_system > 1) argstr[x++] = 'x'; } if (sparse_files) argstr[x++] = 'S'; if (do_compression == CPRES_ZLIB) argstr[x++] = 'z'; set_allow_inc_recurse(); /* This '\0'-terminates argstr and makes sure it didn't overflow. */ x += maybe_add_e_option(argstr + x, (int)sizeof argstr - x); if (x > 1) args[ac++] = argstr; #ifdef ICONV_OPTION if (iconv_opt) { char *set = strchr(iconv_opt, ','); if (set) set++; else set = iconv_opt; args[ac++] = safe_arg("--iconv", set); } #endif if (protect_args && !local_server) /* unprotected args stop here */ args[ac++] = NULL; if (list_only > 1) args[ac++] = "--list-only"; /* This makes sure that the remote rsync can handle deleting with -d * sans -r because the --no-r option was added at the same time. */ if (xfer_dirs && !recurse && delete_mode && am_sender) args[ac++] = "--no-r"; if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) { if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0) goto oom; args[ac++] = arg; } if (preserve_devices) { /* Note: sending "--devices" would not be backward-compatible. */ if (!preserve_specials) args[ac++] = "--no-specials"; /* -D is already set. */ } else if (preserve_specials) args[ac++] = "--specials"; /* The server side doesn't use our log-format, but in certain * circumstances they need to know a little about the option. */ if (stdout_format && am_sender) { /* Use --log-format, not --out-format, for compatibility. */ if (stdout_format_has_i > 1) args[ac++] = "--log-format=%i%I"; else if (stdout_format_has_i) args[ac++] = "--log-format=%i"; else if (stdout_format_has_o_or_i) args[ac++] = "--log-format=%o"; else if (!verbose) args[ac++] = "--log-format=X"; } if (msgs2stderr == 1) args[ac++] = "--msgs2stderr"; else if (msgs2stderr == 0) args[ac++] = "--no-msgs2stderr"; if (block_size) { if (asprintf(&arg, "-B%u", (int)block_size) < 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) { /* This split idiom allows for ~/path expansion via the shell. */ args[ac++] = "--backup-dir"; args[ac++] = safe_arg("", backup_dir); } /* Only send --suffix if it specifies a non-default value. */ if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) args[ac++] = safe_arg("--suffix", backup_suffix); if (checksum_choice) args[ac++] = safe_arg("--checksum-choice", checksum_choice); if (do_compression == CPRES_ZLIBX) args[ac++] = "--new-compress"; else if (compress_choice && do_compression == CPRES_ZLIB) args[ac++] = "--old-compress"; else if (compress_choice) args[ac++] = safe_arg("--compress-choice", compress_choice); if (am_sender) { if (max_delete > 0) { if (asprintf(&arg, "--max-delete=%d", max_delete) < 0) goto oom; args[ac++] = arg; } else if (max_delete == 0) args[ac++] = "--max-delete=-1"; if (min_size >= 0) args[ac++] = safe_arg("--min-size", min_size_arg); if (max_size >= 0) args[ac++] = safe_arg("--max-size", max_size_arg); if (delete_before) args[ac++] = "--delete-before"; else if (delete_during == 2) args[ac++] = "--delete-delay"; else if (delete_during) args[ac++] = "--delete-during"; else if (delete_after) args[ac++] = "--delete-after"; else if (delete_mode && !delete_excluded) args[ac++] = "--delete"; if (delete_excluded) args[ac++] = "--delete-excluded"; if (force_delete) args[ac++] = "--force"; if (write_batch < 0) args[ac++] = "--only-write-batch=X"; if (am_root > 1) args[ac++] = "--super"; if (size_only) args[ac++] = "--size-only"; if (do_stats) args[ac++] = "--stats"; } else { if (skip_compress) args[ac++] = safe_arg("--skip-compress", skip_compress); } if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC) args[ac++] = safe_arg("--max-alloc", max_alloc_arg); /* --delete-missing-args needs the cooperation of both sides, but * the sender can handle --ignore-missing-args by itself. */ if (missing_args == 2) args[ac++] = "--delete-missing-args"; else if (missing_args == 1 && !am_sender) args[ac++] = "--ignore-missing-args"; if (modify_window_set && am_sender) { char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d"; if (asprintf(&arg, fmt, 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) { if (partial_dir != tmp_partialdir) { args[ac++] = "--partial-dir"; args[ac++] = safe_arg("", partial_dir); } if (delay_updates) args[ac++] = "--delay-updates"; } else if (keep_partial && am_sender) 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 (use_qsort) args[ac++] = "--use-qsort"; if (am_sender) { if (usermap) args[ac++] = safe_arg("--usermap", usermap); if (groupmap) args[ac++] = safe_arg("--groupmap", groupmap); if (ignore_existing) args[ac++] = "--ignore-existing"; /* Backward compatibility: send --existing, not --ignore-non-existing. */ if (ignore_non_existing) args[ac++] = "--existing"; if (tmpdir) { args[ac++] = "--temp-dir"; args[ac++] = safe_arg("", tmpdir); } if (do_fsync) args[ac++] = "--fsync"; if (basis_dir[0]) { /* 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. */ for (i = 0; i < basis_dir_cnt; i++) { args[ac++] = alt_dest_opt(0); args[ac++] = safe_arg("", basis_dir[i]); } } } /* What flags do we need to send to the other side? */ where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND); arg = make_output_option(info_words, info_levels, where); if (arg) args[ac++] = arg; if (append_mode) { if (append_mode > 1) args[ac++] = "--append"; args[ac++] = "--append"; } else if (inplace) { args[ac++] = "--inplace"; /* Work around a bug in older rsync versions (on the remote side) for --inplace --sparse */ if (sparse_files && !whole_file && am_sender) args[ac++] = "--no-W"; } if (files_from && (!am_sender || filesfrom_host)) { if (filesfrom_host) { args[ac++] = "--files-from"; args[ac++] = safe_arg("", files_from); if (eol_nulls) args[ac++] = "--from0"; } else { args[ac++] = "--files-from=-"; args[ac++] = "--from0"; } if (!relative_paths) args[ac++] = "--no-relative"; } /* It's OK that this checks the upper-bound of the protocol_version. */ if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30)) args[ac++] = "--no-implied-dirs"; if (write_devices && am_sender) args[ac++] = "--write-devices"; if (remove_source_files == 1) args[ac++] = "--remove-source-files"; else if (remove_source_files) args[ac++] = "--remove-sent-files"; if (copy_devices && !am_sender) args[ac++] = "--copy-devices"; if (preallocate_files && am_sender) args[ac++] = "--preallocate"; if (open_noatime && preserve_atimes <= 1) args[ac++] = "--open-noatime"; if (mkpath_dest_arg && am_sender) args[ac++] = "--mkpath"; if (ac > MAX_SERVER_ARGS) { /* Not possible... */ rprintf(FERROR, "argc overflow in server_options().\n"); exit_cleanup(RERR_MALLOC); } if (remote_option_cnt) { int j; if (ac + remote_option_cnt > MAX_SERVER_ARGS) { rprintf(FERROR, "too many remote options specified.\n"); exit_cleanup(RERR_SYNTAX); } for (j = 1; j <= remote_option_cnt; j++) args[ac++] = safe_arg(SPLIT_ARG_WHEN_OLD, remote_options[j]); } *argc_p = ac; return; oom: out_of_memory("server_options"); } int maybe_add_e_option(char *buf, int buf_len) { int x = 0; /* We don't really know the actual protocol_version at this point, * but checking the pre-negotiated value allows the user to use a * --protocol=29 override to avoid the use of this -eFLAGS opt. */ if (protocol_version >= 30 && buf_len > 0) { /* We make use of the -e option to let the server know about * any pre-release protocol version && some behavior flags. */ buf[x++] = 'e'; #if SUBPROTOCOL_VERSION != 0 if (protocol_version == PROTOCOL_VERSION) x += snprintf(buf + x, buf_len - x, "%d.%d", PROTOCOL_VERSION, SUBPROTOCOL_VERSION); else #endif buf[x++] = '.'; if (allow_inc_recurse) buf[x++] = 'i'; #ifdef CAN_SET_SYMLINK_TIMES buf[x++] = 'L'; /* symlink time-setting support */ #endif #ifdef ICONV_OPTION buf[x++] = 's'; /* symlink iconv translation support */ #endif buf[x++] = 'f'; /* flist I/O-error safety support */ buf[x++] = 'x'; /* xattr hardlink optimization not desired */ buf[x++] = 'C'; /* support checksum seed order fix */ buf[x++] = 'I'; /* support inplace_partial behavior */ buf[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */ buf[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */ /* NOTE: Avoid using 'V' -- it was represented with the high bit of a write_byte() that became a write_varint(). */ } if (x >= buf_len) { /* Not possible... */ rprintf(FERROR, "overflow in add_e_flags().\n"); exit_cleanup(RERR_MALLOC); } buf[x] = '\0'; return x; } /* If str points to a valid hostspec, return allocated memory containing the * [USER@]HOST part of the string, and set the path_start_ptr to the part of * the string after the host part. Otherwise, return NULL. If port_ptr is * non-NULL, we must be parsing an rsync:// URL hostname, and we will set * *port_ptr if a port number is found. Note that IPv6 IPs will have their * (required for parsing) [ and ] chars elided from the returned string. */ static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr) { char *s, *host_start = str; int hostlen = 0, userlen = 0; char *ret; for (s = str; ; s++) { if (!*s) { /* It is only OK if we run out of string with rsync:// */ if (!port_ptr) return NULL; if (!hostlen) hostlen = s - host_start; break; } if (*s == ':' || *s == '/') { if (!hostlen) hostlen = s - host_start; if (*s++ == '/') { if (!port_ptr) return NULL; } else if (port_ptr) { *port_ptr = atoi(s); while (isDigit(s)) s++; if (*s && *s++ != '/') return NULL; } break; } if (*s == '@') { userlen = s - str + 1; host_start = s + 1; } else if (*s == '[') { if (s != host_start++) return NULL; while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/ hostlen = s - host_start; if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen) return NULL; } } *path_start_ptr = s; ret = new_array(char, userlen + hostlen + 1); if (userlen) strlcpy(ret, str, userlen + 1); strlcpy(ret + userlen, host_start, hostlen + 1); return ret; } /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated * memory with the HOST. If a daemon-accessing spec was specified, the value * of *port_ptr will contain a non-0 port number, otherwise it will be set to * 0. The return value is a pointer to the PATH. Note that the HOST spec can * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */ char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr) { char *path; if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) { *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr); if (*host_ptr) { if (!*port_ptr) *port_ptr = -1; /* -1 indicates they want the default */ return path; } } *host_ptr = parse_hostspec(s, &path, NULL); if (!*host_ptr) return NULL; if (*path == ':') { if (port_ptr && !*port_ptr) *port_ptr = -1; return path + 1; } if (port_ptr) *port_ptr = 0; return path; }