File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / rsync / options.c
Revision 1.1.1.4 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Wed Mar 17 00:32:36 2021 UTC (3 years, 3 months ago) by misho
Branches: rsync, MAIN
CVS tags: v3_2_3, HEAD
rsync 3.2.3

    1: /*
    2:  * Command-line (and received via daemon-socket) option parsing.
    3:  *
    4:  * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
    5:  * Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
    6:  * Copyright (C) 2002-2020 Wayne Davison
    7:  *
    8:  * This program is free software; you can redistribute it and/or modify
    9:  * it under the terms of the GNU General Public License as published by
   10:  * the Free Software Foundation; either version 3 of the License, or
   11:  * (at your option) any later version.
   12:  *
   13:  * This program is distributed in the hope that it will be useful,
   14:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   15:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   16:  * GNU General Public License for more details.
   17:  *
   18:  * You should have received a copy of the GNU General Public License along
   19:  * with this program; if not, visit the http://fsf.org website.
   20:  */
   21: 
   22: #include "rsync.h"
   23: #include "itypes.h"
   24: #include "ifuncs.h"
   25: #include <popt.h>
   26: 
   27: extern int direct_io;
   28: extern int module_id;
   29: extern int local_server;
   30: extern int sanitize_paths;
   31: extern unsigned int module_dirlen;
   32: extern filter_rule_list filter_list;
   33: extern filter_rule_list daemon_filter_list;
   34: 
   35: int make_backups = 0;
   36: int make_source_backups = 0;
   37: 
   38: /**
   39:  * If 1, send the whole file as literal data rather than trying to
   40:  * create an incremental diff.
   41:  *
   42:  * If -1, then look at whether we're local or remote and go by that.
   43:  *
   44:  * @sa disable_deltas_p()
   45:  **/
   46: int whole_file = -1;
   47: 
   48: int append_mode = 0;
   49: int keep_dirlinks = 0;
   50: int copy_dirlinks = 0;
   51: int copy_links = 0;
   52: int copy_devices = 0;
   53: int write_devices = 0;
   54: int preserve_links = 0;
   55: int preserve_hard_links = 0;
   56: int preserve_acls = 0;
   57: int preserve_xattrs = 0;
   58: int preserve_hfs_compression = 0;
   59: int preserve_perms = 0;
   60: int preserve_fileflags = 0;
   61: int preserve_executability = 0;
   62: int preserve_devices = 0;
   63: int preserve_specials = 0;
   64: int preserve_uid = 0;
   65: int preserve_gid = 0;
   66: int preserve_times = 0;
   67: int preserve_atimes = 0;
   68: int preserve_crtimes = 0;
   69: int update_only = 0;
   70: int downdate_only = 0;
   71: int open_noatime = 0;
   72: int cvs_exclude = 0;
   73: int dry_run = 0;
   74: int do_xfers = 1;
   75: int do_fsync = 0;
   76: int ignore_times = 0;
   77: int delete_mode = 0;
   78: int delete_during = 0;
   79: int delete_before = 0;
   80: int delete_after = 0;
   81: int delete_excluded = 0;
   82: int diffserv = 8;
   83: char *congestion_alg = NULL;
   84: int remove_source_files = 0;
   85: int omit_dir_changes = 0;
   86: int one_file_system = 0;
   87: int protocol_version = PROTOCOL_VERSION;
   88: int sparse_files = 0;
   89: long sparse_files_block_size = SPARSE_WRITE_SIZE;
   90: int preallocate_files = 0;
   91: int do_compression = 0;
   92: int do_compression_level = CLVL_NOT_SPECIFIED;
   93: int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
   94: int am_server = 0;
   95: int am_sender = 0;
   96: int am_starting_up = 1;
   97: int am_dbadmin = 0;
   98: int relative_paths = -1;
   99: int detect_renamed = 0;
  100: int implied_dirs = 1;
  101: int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
  102: int numeric_ids = 0;
  103: int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */
  104: int allow_8bit_chars = 0;
  105: int force_delete = 0;
  106: int force_change = 0;
  107: int io_timeout = 0;
  108: int prune_empty_dirs = 0;
  109: int use_qsort = 0;
  110: char *files_from = NULL;
  111: int filesfrom_fd = -1;
  112: char *filesfrom_host = NULL;
  113: char *db_config = NULL;
  114: int eol_nulls = 0;
  115: int protect_args = -1;
  116: int human_readable = 1;
  117: int recurse = 0;
  118: int mkpath_dest_arg = 0;
  119: int allow_inc_recurse = 1;
  120: int xfer_dirs = -1;
  121: int am_daemon = 0;
  122: int db_clean, db_check, db_do_md4, db_do_md5, db_update = 1, db_lax, db_init, db_mounts;
  123: int db_output_name, db_output_sum, db_output_info, db_output_unchanged, db_output_dirs, db_output_msgs;
  124: int saw_db_output_opt, saw_db_sum_opt;
  125: int connect_timeout = 0;
  126: int keep_partial = 0;
  127: int safe_symlinks = 0;
  128: int copy_unsafe_links = 0;
  129: int munge_symlinks = 0;
  130: int size_only = 0;
  131: int date_only = 0;
  132: int daemon_bwlimit = 0;
  133: int bwlimit = 0;
  134: int fuzzy_basis = 0;
  135: unsigned long sleep_asec = 0;
  136: size_t bwlimit_writemax = 0;
  137: int ignore_existing = 0;
  138: int ignore_non_existing = 0;
  139: int need_messages_from_generator = 0;
  140: int checksum_files = CSF_IGNORE_FILES;
  141: int max_delete = INT_MIN;
  142: OFF_T max_size = -1;
  143: OFF_T min_size = -1;
  144: int ignore_errors = 0;
  145: int modify_window = 0;
  146: int ignore_case = 0;
  147: int blocking_io = -1;
  148: int checksum_seed = 0;
  149: int inplace = 0;
  150: int delay_updates = 0;
  151: int32 block_size = 0;
  152: time_t stop_at_utime = 0;
  153: char *skip_compress = NULL;
  154: char *copy_as = NULL;
  155: item_list dparam_list = EMPTY_ITEM_LIST;
  156: 
  157: /** Network address family. **/
  158: int default_af_hint
  159: #ifdef INET6
  160: 	= 0;		/* Any protocol */
  161: #else
  162: 	= AF_INET;	/* Must use IPv4 */
  163: # ifdef AF_INET6
  164: #  undef AF_INET6
  165: # endif
  166: # define AF_INET6 AF_INET /* make -6 option a no-op */
  167: #endif
  168: 
  169: /** Do not go into the background when run as --daemon.  Good
  170:  * for debugging and required for running as a service on W32,
  171:  * or under Unix process-monitors. **/
  172: int no_detach
  173: #if defined _WIN32 || defined __WIN32__
  174: 	= 1;
  175: #else
  176: 	= 0;
  177: #endif
  178: 
  179: int write_batch = 0;
  180: int read_batch = 0;
  181: int backup_dir_len = 0;
  182: int backup_dir_dels_len = 0;
  183: int backup_suffix_len;
  184: int backup_suffix_dels_len;
  185: unsigned int backup_dir_remainder;
  186: unsigned int backup_dir_dels_remainder;
  187: 
  188: char *backup_suffix = NULL;
  189: char *backup_suffix_dels = NULL;
  190: char *tmpdir = NULL;
  191: char *partial_dir = NULL;
  192: char *basis_dir[MAX_BASIS_DIRS+1];
  193: char *link_by_hash_dir = NULL;
  194: char *config_file = NULL;
  195: char *shell_cmd = NULL;
  196: char *logfile_name = NULL;
  197: char *logfile_format = NULL;
  198: char *stdout_format = NULL;
  199: char *password_file = NULL;
  200: char *source_filter = NULL;
  201: char *dest_filter = NULL;
  202: char *early_input_file = NULL;
  203: char *rsync_path = RSYNC_PATH;
  204: char *backup_dir = NULL;
  205: char *backup_dir_dels = NULL;
  206: char backup_dir_buf[MAXPATHLEN];
  207: char backup_dir_dels_buf[MAXPATHLEN];
  208: char *sockopts = NULL;
  209: char *usermap = NULL;
  210: char *groupmap = NULL;
  211: int rsync_port = 0;
  212: int alt_dest_type = 0;
  213: int basis_dir_cnt = 0;
  214: 
  215: #define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024)
  216: size_t max_alloc = DEFAULT_MAX_ALLOC;
  217: char *max_alloc_arg;
  218: 
  219: static int version_opt_cnt = 0;
  220: static int remote_option_alloc = 0;
  221: int remote_option_cnt = 0;
  222: const char **remote_options = NULL;
  223: const char *checksum_choice = NULL;
  224: const char *compress_choice = NULL;
  225: 
  226: int quiet = 0;
  227: int output_motd = 1;
  228: int log_before_transfer = 0;
  229: int stdout_format_has_i = 0;
  230: int stdout_format_has_o_or_i = 0;
  231: int logfile_format_has_i = 0;
  232: int logfile_format_has_o_or_i = 0;
  233: int always_checksum = 0;
  234: int list_only = 0;
  235: char *tr_opt = NULL;
  236: 
  237: #define MAX_BATCH_NAME_LEN 256	/* Must be less than MAXPATHLEN-13 */
  238: char *batch_name = NULL;
  239: 
  240: int need_unsorted_flist = 0;
  241: char *iconv_opt =
  242: #ifdef ICONV_OPTION
  243: 		ICONV_OPTION;
  244: #else
  245: 		NULL;
  246: #endif
  247: 
  248: struct chmod_mode_struct *chmod_modes = NULL;
  249: 
  250: static const char *debug_verbosity[] = {
  251: 	/*0*/ NULL,
  252: 	/*1*/ NULL,
  253: 	/*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
  254: 	/*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
  255: 	/*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
  256: 	/*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HASHLINK,HLINK",
  257: };
  258: 
  259: #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
  260: 
  261: static const char *info_verbosity[1+MAX_VERBOSITY] = {
  262: 	/*0*/ NULL,
  263: 	/*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
  264: 	/*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
  265: };
  266: 
  267: #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
  268: 
  269: short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
  270: 
  271: #define DEFAULT_PRIORITY 0 	/* Default/implied/--verbose set values. */
  272: #define HELP_PRIORITY 1		/* The help output uses this level. */
  273: #define USER_PRIORITY 2		/* User-specified via --info or --debug */
  274: #define LIMIT_PRIORITY 3	/* Overriding priority when limiting values. */
  275: 
  276: #define W_CLI (1<<0)	/* client side */
  277: #define W_SRV (1<<1)	/* server side */
  278: #define W_SND (1<<2)	/* sending side */
  279: #define W_REC (1<<3)	/* receiving side */
  280: 
  281: struct output_struct {
  282: 	char *name;	/* The name of the info/debug flag. */
  283: 	char *help;	/* The description of the info/debug flag. */
  284: 	uchar namelen;  /* The length of the name string. */
  285: 	uchar flag;	/* The flag's value, for consistency check. */
  286: 	uchar where;	/* Bits indicating where the flag is used. */
  287: 	uchar priority; /* See *_PRIORITY defines. */
  288: };
  289: 
  290: #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
  291: 
  292: static struct output_struct info_words[COUNT_INFO+1] = {
  293: 	INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
  294: 	INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
  295: 	INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
  296: 	INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
  297: 	INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
  298: 	INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
  299: 	INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
  300: 	INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
  301: 	INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
  302: 	INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
  303: 	INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
  304: 	INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
  305: 	{ NULL, "--info", 0, 0, 0, 0 }
  306: };
  307: 
  308: #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
  309: 
  310: static struct output_struct debug_words[COUNT_DEBUG+1] = {
  311: 	DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
  312: 	DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
  313: 	DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
  314: 	DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
  315: 	DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
  316: 	DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
  317: 	DEBUG_WORD(DB, W_SND|W_REC, "Debug DB operations (levels 1-5)"),
  318: 	DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
  319: 	DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
  320: 	DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
  321: 	DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
  322: 	DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
  323: 	DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
  324: 	DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
  325: 	DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
  326: 	DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
  327: 	DEBUG_WORD(HASHLINK, W_REC, "Debug hashlink code (levels 1-2)"),
  328: 	DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
  329: 	DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
  330: 	DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
  331: 	DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
  332: 	DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
  333: 	DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
  334: 	DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
  335: 	DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
  336: 	DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
  337: 	{ NULL, "--debug", 0, 0, 0, 0 }
  338: };
  339: 
  340: static int verbose = 0;
  341: static int do_stats = 0;
  342: static int do_progress = 0;
  343: static int daemon_opt;   /* sets am_daemon after option error-reporting */
  344: static int omit_dir_times = 0;
  345: static int omit_link_times = 0;
  346: static int F_option_cnt = 0;
  347: static int modify_window_set;
  348: static int itemize_changes = 0;
  349: static int refused_delete, refused_archive_part, refused_compress;
  350: static int refused_partial, refused_progress, refused_delete_before;
  351: static int refused_delete_during;
  352: static int refused_inplace, refused_no_iconv;
  353: static BOOL usermap_via_chown, groupmap_via_chown;
  354: static char *outbuf_mode;
  355: static char *bwlimit_arg, *max_size_arg, *min_size_arg;
  356: static char tmp_partialdir[] = ".~tmp~";
  357: 
  358: /** Local address to bind.  As a character string because it's
  359:  * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
  360:  * address, or a hostname. **/
  361: char *bind_address;
  362: 
  363: static void output_item_help(struct output_struct *words);
  364: 
  365: /* This constructs a string that represents all the options set for either
  366:  * the --info or --debug setting, skipping any implied options (by -v, etc.).
  367:  * This is used both when conveying the user's options to the server, and
  368:  * when the help output wants to tell the user what options are implied. */
  369: static char *make_output_option(struct output_struct *words, short *levels, uchar where)
  370: {
  371: 	char *str = words == info_words ? "--info=" : "--debug=";
  372: 	int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
  373: 	int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
  374: 	char *buf;
  375: 
  376: 	memset(counts, 0, sizeof counts);
  377: 
  378: 	for (j = 0; words[j].name; j++) {
  379: 		if (words[j].flag != j) {
  380: 			rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
  381: 				words == info_words ? "INFO_" : "DEBUG_",
  382: 				words[j].name, words[j].flag, j);
  383: 			exit_cleanup(RERR_UNSUPPORTED);
  384: 		}
  385: 		if (!(words[j].where & where))
  386: 			continue;
  387: 		if (words[j].priority == DEFAULT_PRIORITY) {
  388: 			/* Implied items don't need to be mentioned. */
  389: 			skipped++;
  390: 			continue;
  391: 		}
  392: 		len += len ? 1 : strlen(str);
  393: 		len += strlen(words[j].name);
  394: 		len += levels[j] == 1 ? 0 : 1;
  395: 
  396: 		if (words[j].priority == HELP_PRIORITY)
  397: 			continue; /* no abbreviating for help */
  398: 
  399: 		assert(levels[j] <= MAX_OUT_LEVEL);
  400: 		if (++counts[levels[j]] > max) {
  401: 			/* Determine which level has the most items. */
  402: 			lev = levels[j];
  403: 			max = counts[lev];
  404: 		}
  405: 	}
  406: 
  407: 	/* Sanity check the COUNT_* define against the length of the table. */
  408: 	if (j != word_count) {
  409: 		rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
  410: 			words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
  411: 			j, word_count);
  412: 		exit_cleanup(RERR_UNSUPPORTED);
  413: 	}
  414: 
  415: 	if (!len)
  416: 		return NULL;
  417: 
  418: 	len++;
  419: 	buf = new_array(char, len);
  420: 	pos = 0;
  421: 
  422: 	if (skipped || max < 5)
  423: 		lev = -1;
  424: 	else {
  425: 		if (lev == 0)
  426: 			pos += snprintf(buf, len, "%sNONE", str);
  427: 		else if (lev == 1)
  428: 			pos += snprintf(buf, len, "%sALL", str);
  429: 		else
  430: 			pos += snprintf(buf, len, "%sALL%d", str, lev);
  431: 	}
  432: 
  433: 	for (j = 0; words[j].name && pos < len; j++) {
  434: 		if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
  435: 			continue;
  436: 		if (pos)
  437: 			buf[pos++] = ',';
  438: 		else
  439: 			pos += strlcpy(buf+pos, str, len-pos);
  440: 		if (pos < len)
  441: 			pos += strlcpy(buf+pos, words[j].name, len-pos);
  442: 		/* Level 1 is implied by the name alone. */
  443: 		if (levels[j] != 1 && pos < len)
  444: 			buf[pos++] = '0' + levels[j];
  445: 	}
  446: 
  447: 	buf[pos] = '\0';
  448: 
  449: 	return buf;
  450: }
  451: 
  452: static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
  453: {
  454: 	const char *s;
  455: 	int j, len, lev;
  456: 
  457: 	for ( ; str; str = s) {
  458: 		if ((s = strchr(str, ',')) != NULL)
  459: 			len = s++ - str;
  460: 		else
  461: 			len = strlen(str);
  462: 		if (!len)
  463: 			continue;
  464: 		if (!isDigit(str)) {
  465: 			while (len && isDigit(str+len-1))
  466: 				len--;
  467: 		}
  468: 		lev = isDigit(str+len) ? atoi(str+len) : 1;
  469: 		if (lev > MAX_OUT_LEVEL)
  470: 			lev = MAX_OUT_LEVEL;
  471: 		if (len == 4 && strncasecmp(str, "help", 4) == 0) {
  472: 			output_item_help(words);
  473: 			exit_cleanup(0);
  474: 		}
  475: 		if (len == 4 && strncasecmp(str, "none", 4) == 0)
  476: 			len = lev = 0;
  477: 		else if (len == 3 && strncasecmp(str, "all", 3) == 0)
  478: 			len = 0;
  479: 		for (j = 0; words[j].name; j++) {
  480: 			if (!len
  481: 			 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
  482: 				if (priority >= words[j].priority) {
  483: 					words[j].priority = priority;
  484: 					levels[j] = lev;
  485: 				}
  486: 				if (len)
  487: 					break;
  488: 			}
  489: 		}
  490: 		if (len && !words[j].name && !am_server) {
  491: 			rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
  492: 				words[j].help, len, str);
  493: 			exit_cleanup(RERR_SYNTAX);
  494: 		}
  495: 	}
  496: }
  497: 
  498: /* Tell the user what all the info or debug flags mean. */
  499: static void output_item_help(struct output_struct *words)
  500: {
  501: 	short *levels = words == info_words ? info_levels : debug_levels;
  502: 	const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
  503: 	char buf[128], *opt, *fmt = "%-10s %s\n";
  504: 	int j;
  505: 
  506: 	reset_output_levels();
  507: 
  508: 	rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
  509: 	rprintf(FINFO, "\n");
  510: 	for (j = 0; words[j].name; j++)
  511: 		rprintf(FINFO, fmt, words[j].name, words[j].help);
  512: 	rprintf(FINFO, "\n");
  513: 
  514: 	snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
  515: 		 words[j].help, MAX_OUT_LEVEL);
  516: 	rprintf(FINFO, fmt, "ALL", buf);
  517: 
  518: 	snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
  519: 		 words[j].help);
  520: 	rprintf(FINFO, fmt, "NONE", buf);
  521: 
  522: 	rprintf(FINFO, fmt, "HELP", "Output this help message");
  523: 	rprintf(FINFO, "\n");
  524: 	rprintf(FINFO, "Options added for each increase in verbose level:\n");
  525: 
  526: 	for (j = 1; j <= MAX_VERBOSITY; j++) {
  527: 		parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
  528: 		opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
  529: 		if (opt) {
  530: 			rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
  531: 			free(opt);
  532: 		}
  533: 		reset_output_levels();
  534: 	}
  535: }
  536: 
  537: /* The --verbose option now sets info+debug flags. */
  538: static void set_output_verbosity(int level, uchar priority)
  539: {
  540: 	int j;
  541: 
  542: 	if (level > MAX_VERBOSITY)
  543: 		level = MAX_VERBOSITY;
  544: 
  545: 	for (j = 1; j <= level; j++) {
  546: 		parse_output_words(info_words, info_levels, info_verbosity[j], priority);
  547: 		parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
  548: 	}
  549: }
  550: 
  551: /* Limit the info+debug flag levels given a verbose-option level limit. */
  552: void limit_output_verbosity(int level)
  553: {
  554: 	short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
  555: 	int j;
  556: 
  557: 	if (level > MAX_VERBOSITY)
  558: 		return;
  559: 
  560: 	memset(info_limits, 0, sizeof info_limits);
  561: 	memset(debug_limits, 0, sizeof debug_limits);
  562: 
  563: 	/* Compute the level limits in the above arrays. */
  564: 	for (j = 1; j <= level; j++) {
  565: 		parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
  566: 		parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
  567: 	}
  568: 
  569: 	for (j = 0; j < COUNT_INFO; j++) {
  570: 		if (info_levels[j] > info_limits[j])
  571: 			info_levels[j] = info_limits[j];
  572: 	}
  573: 
  574: 	for (j = 0; j < COUNT_DEBUG; j++) {
  575: 		if (debug_levels[j] > debug_limits[j])
  576: 			debug_levels[j] = debug_limits[j];
  577: 	}
  578: }
  579: 
  580: void reset_output_levels(void)
  581: {
  582: 	int j;
  583: 
  584: 	memset(info_levels, 0, sizeof info_levels);
  585: 	memset(debug_levels, 0, sizeof debug_levels);
  586: 
  587: 	for (j = 0; j < COUNT_INFO; j++)
  588: 		info_words[j].priority = DEFAULT_PRIORITY;
  589: 
  590: 	for (j = 0; j < COUNT_DEBUG; j++)
  591: 		debug_words[j].priority = DEFAULT_PRIORITY;
  592: }
  593: 
  594: void negate_output_levels(void)
  595: {
  596: 	int j;
  597: 
  598: 	for (j = 0; j < COUNT_INFO; j++)
  599: 		info_levels[j] *= -1;
  600: 
  601: 	for (j = 0; j < COUNT_DEBUG; j++)
  602: 		debug_levels[j] *= -1;
  603: }
  604: 
  605: enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
  606:       OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
  607:       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
  608:       OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
  609:       OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE,
  610:       OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR, OPT_SUMFILES,
  611:       OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS,
  612:       OPT_STOP_AFTER, OPT_STOP_AT,
  613:       OPT_REFUSED_BASE = 9000};
  614: 
  615: static struct poptOption long_options[] = {
  616:   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
  617:   {"help",             0,  POPT_ARG_NONE,   0, OPT_HELP, 0, 0 },
  618:   {"version",         'V', POPT_ARG_NONE,   0, 'V', 0, 0},
  619:   {"verbose",         'v', POPT_ARG_NONE,   0, 'v', 0, 0 },
  620:   {"no-verbose",       0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
  621:   {"no-v",             0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
  622:   {"info",             0,  POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
  623:   {"debug",            0,  POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
  624:   {"stderr",           0,  POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 },
  625:   {"msgs2stderr",      0,  POPT_ARG_VAL,    &msgs2stderr, 1, 0, 0 },
  626:   {"no-msgs2stderr",   0,  POPT_ARG_VAL,    &msgs2stderr, 0, 0, 0 },
  627:   {"quiet",           'q', POPT_ARG_NONE,   0, 'q', 0, 0 },
  628:   {"motd",             0,  POPT_ARG_VAL,    &output_motd, 1, 0, 0 },
  629:   {"no-motd",          0,  POPT_ARG_VAL,    &output_motd, 0, 0, 0 },
  630:   {"stats",            0,  POPT_ARG_NONE,   &do_stats, 0, 0, 0 },
  631:   {"human-readable",  'h', POPT_ARG_NONE,   0, 'h', 0, 0},
  632:   {"no-human-readable",0,  POPT_ARG_VAL,    &human_readable, 0, 0, 0},
  633:   {"no-h",             0,  POPT_ARG_VAL,    &human_readable, 0, 0, 0},
  634:   {"dry-run",         'n', POPT_ARG_NONE,   &dry_run, 0, 0, 0 },
  635:   {"archive",         'a', POPT_ARG_NONE,   0, 'a', 0, 0 },
  636:   {"recursive",       'r', POPT_ARG_VAL,    &recurse, 2, 0, 0 },
  637:   {"no-recursive",     0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
  638:   {"no-r",             0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
  639:   {"inc-recursive",    0,  POPT_ARG_VAL,    &allow_inc_recurse, 1, 0, 0 },
  640:   {"no-inc-recursive", 0,  POPT_ARG_VAL,    &allow_inc_recurse, 0, 0, 0 },
  641:   {"i-r",              0,  POPT_ARG_VAL,    &allow_inc_recurse, 1, 0, 0 },
  642:   {"no-i-r",           0,  POPT_ARG_VAL,    &allow_inc_recurse, 0, 0, 0 },
  643:   {"dirs",            'd', POPT_ARG_VAL,    &xfer_dirs, 2, 0, 0 },
  644:   {"no-dirs",          0,  POPT_ARG_VAL,    &xfer_dirs, 0, 0, 0 },
  645:   {"no-d",             0,  POPT_ARG_VAL,    &xfer_dirs, 0, 0, 0 },
  646:   {"old-dirs",         0,  POPT_ARG_VAL,    &xfer_dirs, 4, 0, 0 },
  647:   {"old-d",            0,  POPT_ARG_VAL,    &xfer_dirs, 4, 0, 0 },
  648:   {"perms",           'p', POPT_ARG_VAL,    &preserve_perms, 1, 0, 0 },
  649:   {"no-perms",         0,  POPT_ARG_VAL,    &preserve_perms, 0, 0, 0 },
  650:   {"no-p",             0,  POPT_ARG_VAL,    &preserve_perms, 0, 0, 0 },
  651:   {"fileflags",        0,  POPT_ARG_VAL,    &preserve_fileflags, 1, 0, 0 },
  652:   {"no-fileflags",     0,  POPT_ARG_VAL,    &preserve_fileflags, 0, 0, 0 },
  653:   {"executability",   'E', POPT_ARG_NONE,   &preserve_executability, 0, 0, 0 },
  654:   {"acls",            'A', POPT_ARG_NONE,   0, 'A', 0, 0 },
  655:   {"no-acls",          0,  POPT_ARG_VAL,    &preserve_acls, 0, 0, 0 },
  656:   {"no-A",             0,  POPT_ARG_VAL,    &preserve_acls, 0, 0, 0 },
  657:   {"xattrs",          'X', POPT_ARG_NONE,   0, 'X', 0, 0 },
  658:   {"no-xattrs",        0,  POPT_ARG_VAL,    &preserve_xattrs, 0, 0, 0 },
  659:   {"no-X",             0,  POPT_ARG_VAL,    &preserve_xattrs, 0, 0, 0 },
  660:   {"times",           't', POPT_ARG_VAL,    &preserve_times, 1, 0, 0 },
  661:   {"no-times",         0,  POPT_ARG_VAL,    &preserve_times, 0, 0, 0 },
  662:   {"no-t",             0,  POPT_ARG_VAL,    &preserve_times, 0, 0, 0 },
  663:   {"atimes",          'U', POPT_ARG_NONE,   0, 'U', 0, 0 },
  664:   {"no-atimes",        0,  POPT_ARG_VAL,    &preserve_atimes, 0, 0, 0 },
  665:   {"no-U",             0,  POPT_ARG_VAL,    &preserve_atimes, 0, 0, 0 },
  666:   {"open-noatime",     0,  POPT_ARG_VAL,    &open_noatime, 1, 0, 0 },
  667:   {"no-open-noatime",  0,  POPT_ARG_VAL,    &open_noatime, 0, 0, 0 },
  668:   {"crtimes",         'N', POPT_ARG_VAL,    &preserve_crtimes, 1, 0, 0 },
  669:   {"no-crtimes",       0,  POPT_ARG_VAL,    &preserve_crtimes, 0, 0, 0 },
  670:   {"no-N",             0,  POPT_ARG_VAL,    &preserve_crtimes, 0, 0, 0 },
  671:   {"omit-dir-times",  'O', POPT_ARG_VAL,    &omit_dir_times, 1, 0, 0 },
  672:   {"no-omit-dir-times",0,  POPT_ARG_VAL,    &omit_dir_times, 0, 0, 0 },
  673:   {"no-O",             0,  POPT_ARG_VAL,    &omit_dir_times, 0, 0, 0 },
  674:   {"omit-link-times", 'J', POPT_ARG_VAL,    &omit_link_times, 1, 0, 0 },
  675:   {"no-omit-link-times",0, POPT_ARG_VAL,    &omit_link_times, 0, 0, 0 },
  676:   {"no-J",             0,  POPT_ARG_VAL,    &omit_link_times, 0, 0, 0 },
  677:   {"omit-dir-changes", 0,  POPT_ARG_NONE,   &omit_dir_changes, 0, 0, 0 },
  678:   {"modify-window",   '@', POPT_ARG_INT,    &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
  679:   {"super",            0,  POPT_ARG_VAL,    &am_root, 2, 0, 0 },
  680:   {"no-super",         0,  POPT_ARG_VAL,    &am_root, 0, 0, 0 },
  681:   {"fake-super",       0,  POPT_ARG_VAL,    &am_root, -1, 0, 0 },
  682:   {"owner",           'o', POPT_ARG_VAL,    &preserve_uid, 1, 0, 0 },
  683:   {"no-owner",         0,  POPT_ARG_VAL,    &preserve_uid, 0, 0, 0 },
  684:   {"no-o",             0,  POPT_ARG_VAL,    &preserve_uid, 0, 0, 0 },
  685:   {"group",           'g', POPT_ARG_VAL,    &preserve_gid, 1, 0, 0 },
  686:   {"no-group",         0,  POPT_ARG_VAL,    &preserve_gid, 0, 0, 0 },
  687:   {"no-g",             0,  POPT_ARG_VAL,    &preserve_gid, 0, 0, 0 },
  688:   {0,                 'D', POPT_ARG_NONE,   0, 'D', 0, 0 },
  689:   {"no-D",             0,  POPT_ARG_NONE,   0, OPT_NO_D, 0, 0 },
  690:   {"devices",          0,  POPT_ARG_VAL,    &preserve_devices, 1, 0, 0 },
  691:   {"no-devices",       0,  POPT_ARG_VAL,    &preserve_devices, 0, 0, 0 },
  692:   {"copy-devices",     0,  POPT_ARG_NONE,   &copy_devices, 0, 0, 0 },
  693:   {"write-devices",    0,  POPT_ARG_VAL,    &write_devices, 1, 0, 0 },
  694:   {"no-write-devices", 0,  POPT_ARG_VAL,    &write_devices, 0, 0, 0 },
  695:   {"specials",         0,  POPT_ARG_VAL,    &preserve_specials, 1, 0, 0 },
  696:   {"no-specials",      0,  POPT_ARG_VAL,    &preserve_specials, 0, 0, 0 },
  697:   {"links",           'l', POPT_ARG_VAL,    &preserve_links, 1, 0, 0 },
  698:   {"no-links",         0,  POPT_ARG_VAL,    &preserve_links, 0, 0, 0 },
  699:   {"no-l",             0,  POPT_ARG_VAL,    &preserve_links, 0, 0, 0 },
  700:   {"copy-links",      'L', POPT_ARG_NONE,   &copy_links, 0, 0, 0 },
  701:   {"copy-unsafe-links",0,  POPT_ARG_NONE,   &copy_unsafe_links, 0, 0, 0 },
  702:   {"safe-links",       0,  POPT_ARG_NONE,   &safe_symlinks, 0, 0, 0 },
  703:   {"munge-links",      0,  POPT_ARG_VAL,    &munge_symlinks, 1, 0, 0 },
  704:   {"no-munge-links",   0,  POPT_ARG_VAL,    &munge_symlinks, 0, 0, 0 },
  705:   {"copy-dirlinks",   'k', POPT_ARG_NONE,   &copy_dirlinks, 0, 0, 0 },
  706:   {"keep-dirlinks",   'K', POPT_ARG_NONE,   &keep_dirlinks, 0, 0, 0 },
  707:   {"hard-links",      'H', POPT_ARG_NONE,   0, 'H', 0, 0 },
  708:   {"no-hard-links",    0,  POPT_ARG_VAL,    &preserve_hard_links, 0, 0, 0 },
  709:   {"no-H",             0,  POPT_ARG_VAL,    &preserve_hard_links, 0, 0, 0 },
  710:   {"relative",        'R', POPT_ARG_VAL,    &relative_paths, 1, 0, 0 },
  711:   {"no-relative",      0,  POPT_ARG_VAL,    &relative_paths, 0, 0, 0 },
  712:   {"no-R",             0,  POPT_ARG_VAL,    &relative_paths, 0, 0, 0 },
  713:   {"implied-dirs",     0,  POPT_ARG_VAL,    &implied_dirs, 1, 0, 0 },
  714:   {"no-implied-dirs",  0,  POPT_ARG_VAL,    &implied_dirs, 0, 0, 0 },
  715:   {"i-d",              0,  POPT_ARG_VAL,    &implied_dirs, 1, 0, 0 },
  716:   {"no-i-d",           0,  POPT_ARG_VAL,    &implied_dirs, 0, 0, 0 },
  717:   {"chmod",            0,  POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
  718:   {"ignore-times",    'I', POPT_ARG_NONE,   &ignore_times, 0, 0, 0 },
  719:   {"size-only",        0,  POPT_ARG_NONE,   &size_only, 0, 0, 0 },
  720:   {"date-only",        0,  POPT_ARG_NONE,   &date_only, 0, 0, 0 },
  721:   {"one-file-system", 'x', POPT_ARG_NONE,   0, 'x', 0, 0 },
  722:   {"no-one-file-system",0, POPT_ARG_VAL,    &one_file_system, 0, 0, 0 },
  723:   {"no-x",             0,  POPT_ARG_VAL,    &one_file_system, 0, 0, 0 },
  724:   {"update",          'u', POPT_ARG_NONE,   &update_only, 0, 0, 0 },
  725:   {"downdate",        'w', POPT_ARG_NONE,   &downdate_only, 0, 0, 0 },
  726:   {"existing",         0,  POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
  727:   {"ignore-non-existing",0,POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
  728:   {"ignore-existing",  0,  POPT_ARG_NONE,   &ignore_existing, 0, 0, 0 },
  729:   {"max-size",         0,  POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
  730:   {"min-size",         0,  POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
  731:   {"max-alloc",        0,  POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 },
  732:   {"sparse",          'S', POPT_ARG_VAL,    &sparse_files, 1, 0, 0 },
  733:   {"no-sparse",        0,  POPT_ARG_VAL,    &sparse_files, 0, 0, 0 },
  734:   {"no-S",             0,  POPT_ARG_VAL,    &sparse_files, 0, 0, 0 },
  735:   {"sparse-block",     0,  POPT_ARG_LONG,   &sparse_files_block_size, 0, 0, 0 },
  736:   {"preallocate",      0,  POPT_ARG_NONE,   &preallocate_files, 0, 0, 0},
  737:   {"inplace",          0,  POPT_ARG_VAL,    &inplace, 1, 0, 0 },
  738:   {"no-inplace",       0,  POPT_ARG_VAL,    &inplace, 0, 0, 0 },
  739:   {"append",           0,  POPT_ARG_NONE,   0, OPT_APPEND, 0, 0 },
  740:   {"append-verify",    0,  POPT_ARG_VAL,    &append_mode, 2, 0, 0 },
  741:   {"no-append",        0,  POPT_ARG_VAL,    &append_mode, 0, 0, 0 },
  742:   {"del",              0,  POPT_ARG_NONE,   &delete_during, 0, 0, 0 },
  743:   {"delete",           0,  POPT_ARG_NONE,   &delete_mode, 0, 0, 0 },
  744:   {"delete-before",    0,  POPT_ARG_NONE,   &delete_before, 0, 0, 0 },
  745:   {"delete-during",    0,  POPT_ARG_VAL,    &delete_during, 1, 0, 0 },
  746:   {"delete-delay",     0,  POPT_ARG_VAL,    &delete_during, 2, 0, 0 },
  747:   {"delete-after",     0,  POPT_ARG_NONE,   &delete_after, 0, 0, 0 },
  748:   {"delete-excluded",  0,  POPT_ARG_NONE,   &delete_excluded, 0, 0, 0 },
  749:   {"delete-missing-args",0,POPT_BIT_SET,    &missing_args, 2, 0, 0 },
  750:   {"ignore-missing-args",0,POPT_BIT_SET,    &missing_args, 1, 0, 0 },
  751:   {"remove-sent-files",0,  POPT_ARG_VAL,    &remove_source_files, 2, 0, 0 }, /* deprecated */
  752:   {"remove-source-files",0,POPT_ARG_VAL,    &remove_source_files, 1, 0, 0 },
  753:   {"force",            0,  POPT_ARG_VAL,    &force_delete, 1, 0, 0 },
  754:   {"no-force",         0,  POPT_ARG_VAL,    &force_delete, 0, 0, 0 },
  755:   {"force-delete",     0,  POPT_ARG_VAL,    &force_delete, 1, 0, 0 },
  756:   {"no-force-delete",  0,  POPT_ARG_VAL,    &force_delete, 0, 0, 0 },
  757:   {"force-change",     0,  POPT_ARG_VAL,    &force_change, ALL_IMMUTABLE, 0, 0 },
  758:   {"no-force-change",  0,  POPT_ARG_VAL,    &force_change, 0, 0, 0 },
  759:   {"force-uchange",    0,  POPT_ARG_VAL,    &force_change, USR_IMMUTABLE, 0, 0 },
  760:   {"force-schange",    0,  POPT_ARG_VAL,    &force_change, SYS_IMMUTABLE, 0, 0 },
  761:   {"hfs-compression",  0,  POPT_ARG_VAL,    &preserve_hfs_compression, 1, 0, 0 },
  762:   {"no-hfs-compression",0, POPT_ARG_VAL,    &preserve_hfs_compression, 0, 0, 0 },
  763:   {"protect-decmpfs",  0,  POPT_ARG_VAL,    &preserve_hfs_compression, 2, 0, 0 },
  764:   {"no-protect-decmpfs",0, POPT_ARG_VAL,    &preserve_hfs_compression, 0, 0, 0 },
  765:   {"ignore-errors",    0,  POPT_ARG_VAL,    &ignore_errors, 1, 0, 0 },
  766:   {"no-ignore-errors", 0,  POPT_ARG_VAL,    &ignore_errors, 0, 0, 0 },
  767:   {"max-delete",       0,  POPT_ARG_INT,    &max_delete, 0, 0, 0 },
  768:   {0,                 'F', POPT_ARG_NONE,   0, 'F', 0, 0 },
  769:   {"filter",          'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
  770:   {"exclude",          0,  POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
  771:   {"include",          0,  POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
  772:   {"exclude-from",     0,  POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
  773:   {"include-from",     0,  POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
  774:   {"cvs-exclude",     'C', POPT_ARG_NONE,   &cvs_exclude, 0, 0, 0 },
  775:   {"whole-file",      'W', POPT_ARG_VAL,    &whole_file, 1, 0, 0 },
  776:   {"no-whole-file",    0,  POPT_ARG_VAL,    &whole_file, 0, 0, 0 },
  777:   {"no-W",             0,  POPT_ARG_VAL,    &whole_file, 0, 0, 0 },
  778:   {"checksum",        'c', POPT_ARG_VAL,    &always_checksum, 1, 0, 0 },
  779:   {"no-checksum",      0,  POPT_ARG_VAL,    &always_checksum, 0, 0, 0 },
  780:   {"no-c",             0,  POPT_ARG_VAL,    &always_checksum, 0, 0, 0 },
  781:   {"checksum-choice",  0,  POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
  782:   {"cc",               0,  POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
  783:   {"sumfiles",         0,  POPT_ARG_STRING, 0, OPT_SUMFILES, 0, 0 },
  784:   {"block-size",      'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 0, 0 },
  785:   {"compare-dest",     0,  POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
  786:   {"copy-dest",        0,  POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
  787:   {"link-dest",        0,  POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
  788:   {"clone-dest",       0,  POPT_ARG_STRING, 0, OPT_CLONE_DEST, 0, 0 },
  789:   {"fuzzy",           'y', POPT_ARG_NONE,   0, 'y', 0, 0 },
  790:   {"no-fuzzy",         0,  POPT_ARG_VAL,    &fuzzy_basis, 0, 0, 0 },
  791:   {"no-y",             0,  POPT_ARG_VAL,    &fuzzy_basis, 0, 0, 0 },
  792:   {"compress",        'z', POPT_ARG_NONE,   0, 'z', 0, 0 },
  793:   {"old-compress",     0,  POPT_ARG_NONE,   0, OPT_OLD_COMPRESS, 0, 0 },
  794:   {"new-compress",     0,  POPT_ARG_NONE,   0, OPT_NEW_COMPRESS, 0, 0 },
  795:   {"no-compress",      0,  POPT_ARG_NONE,   0, OPT_NO_COMPRESS, 0, 0 },
  796:   {"no-z",             0,  POPT_ARG_NONE,   0, OPT_NO_COMPRESS, 0, 0 },
  797:   {"compress-choice",  0,  POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
  798:   {"zc",               0,  POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
  799:   {"skip-compress",    0,  POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
  800:   {"compress-level",   0,  POPT_ARG_INT,    &do_compression_level, 0, 0, 0 },
  801:   {"zl",               0,  POPT_ARG_INT,    &do_compression_level, 0, 0, 0 },
  802:   {0,                 'P', POPT_ARG_NONE,   0, 'P', 0, 0 },
  803:   {"progress",         0,  POPT_ARG_VAL,    &do_progress, 1, 0, 0 },
  804:   {"no-progress",      0,  POPT_ARG_VAL,    &do_progress, 0, 0, 0 },
  805:   {"partial",          0,  POPT_ARG_VAL,    &keep_partial, 1, 0, 0 },
  806:   {"no-partial",       0,  POPT_ARG_VAL,    &keep_partial, 0, 0, 0 },
  807:   {"partial-dir",      0,  POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
  808:   {"delay-updates",    0,  POPT_ARG_VAL,    &delay_updates, 1, 0, 0 },
  809:   {"no-delay-updates", 0,  POPT_ARG_VAL,    &delay_updates, 0, 0, 0 },
  810:   {"direct-io",       'n', POPT_ARG_VAL,    &direct_io, 1, 0, 0 },
  811:   {"no-direct-io",     0,  POPT_ARG_VAL,    &direct_io, 0, 0, 0 },
  812:   {"prune-empty-dirs",'m', POPT_ARG_VAL,    &prune_empty_dirs, 1, 0, 0 },
  813:   {"no-prune-empty-dirs",0,POPT_ARG_VAL,    &prune_empty_dirs, 0, 0, 0 },
  814:   {"no-m",             0,  POPT_ARG_VAL,    &prune_empty_dirs, 0, 0, 0 },
  815:   {"log-file",         0,  POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
  816:   {"log-file-format",  0,  POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
  817:   {"out-format",       0,  POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
  818:   {"log-format",       0,  POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
  819:   {"itemize-changes", 'i', POPT_ARG_NONE,   0, 'i', 0, 0 },
  820:   {"no-itemize-changes",0, POPT_ARG_VAL,    &itemize_changes, 0, 0, 0 },
  821:   {"no-i",             0,  POPT_ARG_VAL,    &itemize_changes, 0, 0, 0 },
  822:   {"slow-down",        0,  POPT_ARG_LONG,   &sleep_asec, 0, 0, 0 },
  823:   {"bwlimit",          0,  POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
  824:   {"no-bwlimit",       0,  POPT_ARG_VAL,    &bwlimit, 0, 0, 0 },
  825:   {"backup",          'b', POPT_ARG_VAL,    &make_backups, 2, 0, 0 },
  826:   {"backup-deleted",   0,  POPT_ARG_VAL,    &make_backups, 1, 0, 0 },
  827:   {"no-backup",        0,  POPT_ARG_VAL,    &make_backups, 0, 0, 0 },
  828:   {"backup-dir",       0,  POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
  829:   {"backup-dir-dels",  0,  POPT_ARG_STRING, &backup_dir_dels, 0, 0, 0 },
  830:   {"suffix",           0,  POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
  831:   {"suffix-dels",      0,  POPT_ARG_STRING, &backup_suffix_dels, 0, 0, 0 },
  832:   {"list-only",        0,  POPT_ARG_VAL,    &list_only, 2, 0, 0 },
  833:   {"read-batch",       0,  POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
  834:   {"write-batch",      0,  POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
  835:   {"only-write-batch", 0,  POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
  836:   {"ignore-case",      0,  POPT_ARG_VAL,    &ignore_case, 1, 0, 0 },
  837:   {"no-ignore-case",   0,  POPT_ARG_VAL,    &ignore_case, 0, 0, 0 },
  838:   {"files-from",       0,  POPT_ARG_STRING, &files_from, 0, 0, 0 },
  839:   {"from0",           '0', POPT_ARG_VAL,    &eol_nulls, 1, 0, 0},
  840:   {"no-from0",         0,  POPT_ARG_VAL,    &eol_nulls, 0, 0, 0},
  841:   {"protect-args",    's', POPT_ARG_VAL,    &protect_args, 1, 0, 0},
  842:   {"no-protect-args",  0,  POPT_ARG_VAL,    &protect_args, 0, 0, 0},
  843:   {"no-s",             0,  POPT_ARG_VAL,    &protect_args, 0, 0, 0},
  844:   {"numeric-ids",      0,  POPT_ARG_VAL,    &numeric_ids, 1, 0, 0 },
  845:   {"no-numeric-ids",   0,  POPT_ARG_VAL,    &numeric_ids, 0, 0, 0 },
  846:   {"usermap",          0,  POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
  847:   {"groupmap",         0,  POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
  848:   {"chown",            0,  POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
  849:   {"timeout",          0,  POPT_ARG_INT,    &io_timeout, 0, 0, 0 },
  850:   {"no-timeout",       0,  POPT_ARG_VAL,    &io_timeout, 0, 0, 0 },
  851:   {"contimeout",       0,  POPT_ARG_INT,    &connect_timeout, 0, 0, 0 },
  852:   {"no-contimeout",    0,  POPT_ARG_VAL,    &connect_timeout, 0, 0, 0 },
  853:   {"fsync",            0,  POPT_ARG_NONE,   &do_fsync, 0, 0, 0 },
  854:   {"stop-after",       0,  POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 },
  855:   {"time-limit",       0,  POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */
  856:   {"stop-at",          0,  POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 },
  857:   {"rsh",             'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
  858:   {"rsync-path",       0,  POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
  859:   {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
  860:   {"iconv",            0,  POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
  861:   {"no-iconv",         0,  POPT_ARG_NONE,   0, OPT_NO_ICONV, 0, 0 },
  862:   {"tr",               0,  POPT_ARG_STRING, &tr_opt, 0, 0, 0 },
  863:   {"ipv4",            '4', POPT_ARG_VAL,    &default_af_hint, AF_INET, 0, 0 },
  864:   {"ipv6",            '6', POPT_ARG_VAL,    &default_af_hint, AF_INET6, 0, 0 },
  865:   {"8-bit-output",    '8', POPT_ARG_VAL,    &allow_8bit_chars, 1, 0, 0 },
  866:   {"no-8-bit-output",  0,  POPT_ARG_VAL,    &allow_8bit_chars, 0, 0, 0 },
  867:   {"no-8",             0,  POPT_ARG_VAL,    &allow_8bit_chars, 0, 0, 0 },
  868:   {"mkpath",           0,  POPT_ARG_VAL,    &mkpath_dest_arg, 1, 0, 0 },
  869:   {"no-mkpath",        0,  POPT_ARG_VAL,    &mkpath_dest_arg, 0, 0, 0 },
  870:   {"qsort",            0,  POPT_ARG_NONE,   &use_qsort, 0, 0, 0 },
  871:   {"copy-as",          0,  POPT_ARG_STRING, &copy_as, 0, 0, 0 },
  872:   {"address",          0,  POPT_ARG_STRING, &bind_address, 0, 0, 0 },
  873:   {"port",             0,  POPT_ARG_INT,    &rsync_port, 0, 0, 0 },
  874:   {"sockopts",         0,  POPT_ARG_STRING, &sockopts, 0, 0, 0 },
  875:   {"password-file",    0,  POPT_ARG_STRING, &password_file, 0, 0, 0 },
  876:   {"early-input",      0,  POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
  877:   {"blocking-io",      0,  POPT_ARG_VAL,    &blocking_io, 1, 0, 0 },
  878:   {"no-blocking-io",   0,  POPT_ARG_VAL,    &blocking_io, 0, 0, 0 },
  879:   {"source-filter",    0,  POPT_ARG_STRING, &source_filter, 0, 0, 0 },
  880:   {"dest-filter",      0,  POPT_ARG_STRING, &dest_filter, 0, 0, 0 },
  881:   {"outbuf",           0,  POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
  882:   {"remote-option",   'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
  883:   {"protocol",         0,  POPT_ARG_INT,    &protocol_version, 0, 0, 0 },
  884:   {"congestion-alg",   0,  POPT_ARG_STRING, &congestion_alg, 0, 0, 0 },
  885:   {"diffserv",         0,  POPT_ARG_INT,    &diffserv, 0, 0, 0 },
  886:   {"checksum-seed",    0,  POPT_ARG_INT,    &checksum_seed, 0, 0, 0 },
  887:   {"server",           0,  POPT_ARG_NONE,   0, OPT_SERVER, 0, 0 },
  888:   {"sender",           0,  POPT_ARG_NONE,   0, OPT_SENDER, 0, 0 },
  889:   /* All the following options switch us into daemon-mode option-parsing. */
  890:   {"config",           0,  POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
  891:   {"daemon",           0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
  892:   {"dparam",           0,  POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
  893:   {"detach",           0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
  894:   {"no-detach",        0,  POPT_ARG_NONE,   0, OPT_DAEMON, 0, 0 },
  895:   /* All the following options switch us into DB-admin option-parsing. */
  896:   {"db-help",          0,  POPT_ARG_NONE,   0, OPT_DBONLY, 0, 0 },
  897:   {"db-only",          0,  POPT_ARG_STRING, 0, OPT_DBONLY, 0, 0 },
  898:   {0,0,0,0, 0, 0, 0}
  899: };
  900: 
  901: static struct poptOption long_daemon_options[] = {
  902:   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
  903:   {"address",          0,  POPT_ARG_STRING, &bind_address, 0, 0, 0 },
  904:   {"bwlimit",          0,  POPT_ARG_INT,    &daemon_bwlimit, 0, 0, 0 },
  905:   {"config",           0,  POPT_ARG_STRING, &config_file, 0, 0, 0 },
  906:   {"daemon",           0,  POPT_ARG_NONE,   &daemon_opt, 0, 0, 0 },
  907:   {"dparam",          'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
  908:   {"ipv4",            '4', POPT_ARG_VAL,    &default_af_hint, AF_INET, 0, 0 },
  909:   {"ipv6",            '6', POPT_ARG_VAL,    &default_af_hint, AF_INET6, 0, 0 },
  910:   {"detach",           0,  POPT_ARG_VAL,    &no_detach, 0, 0, 0 },
  911:   {"no-detach",        0,  POPT_ARG_VAL,    &no_detach, 1, 0, 0 },
  912:   {"log-file",         0,  POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
  913:   {"log-file-format",  0,  POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
  914:   {"port",             0,  POPT_ARG_INT,    &rsync_port, 0, 0, 0 },
  915:   {"sockopts",         0,  POPT_ARG_STRING, &sockopts, 0, 0, 0 },
  916:   {"protocol",         0,  POPT_ARG_INT,    &protocol_version, 0, 0, 0 },
  917:   {"server",           0,  POPT_ARG_NONE,   &am_server, 0, 0, 0 },
  918:   {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
  919:   {"verbose",         'v', POPT_ARG_NONE,   0, 'v', 0, 0 },
  920:   {"no-verbose",       0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
  921:   {"no-v",             0,  POPT_ARG_VAL,    &verbose, 0, 0, 0 },
  922:   {"help",            'h', POPT_ARG_NONE,   0, 'h', 0, 0 },
  923:   {0,0,0,0, 0, 0, 0}
  924: };
  925: 
  926: static struct poptOption long_dbonly_options[] = {
  927:   /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
  928:   {"check",           'c', POPT_ARG_NONE,   &db_check, 0, 0, 0},
  929:   {"clean",            0,  POPT_ARG_NONE,   &db_clean, 0, 0, 0},
  930:   {"db",               0,  POPT_ARG_STRING, &db_config, 0, 0, 0 },
  931:   {"db-only",          0,  POPT_ARG_STRING, &db_config, 0, 0, 0 },
  932:   {"db-lax",           0,  POPT_ARG_VAL,    &db_lax, 1, 0, 0 },
  933:   {"no-db-lax",        0,  POPT_ARG_VAL,    &db_lax, 0, 0, 0 },
  934:   {"info",             0,  POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
  935:   {"debug",            0,  POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
  936:   {"update",          'u', POPT_ARG_VAL,    &db_update, 1, 0, 0 },
  937:   {"no-update",       'N', POPT_ARG_VAL,    &db_update, 0, 0, 0 },
  938:   {"no-u",             0,  POPT_ARG_VAL,    &db_update, 0, 0, 0 },
  939:   {"output",          'o', POPT_ARG_STRING, 0, 'o', 0, 0 },
  940:   {"recursive",       'r', POPT_ARG_VAL,    &recurse, 1, 0, 0 },
  941:   {"no-recursive",     0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
  942:   {"no-r",             0,  POPT_ARG_VAL,    &recurse, 0, 0, 0 },
  943:   {"sums",            's', POPT_ARG_STRING, 0, 's', 0, 0 },
  944:   {"init",             0,  POPT_ARG_NONE,   &db_init, 0, 0, 0 },
  945:   {"mounts",           0,  POPT_ARG_NONE,   &db_mounts, 0, 0, 0 },
  946:   {"quiet",           'q', POPT_ARG_NONE,   &quiet, 0, 0, 0 },
  947:   {"help",            'h', POPT_ARG_NONE,   0, 'h', 0, 0 },
  948:   {"db-help",          0,  POPT_ARG_NONE,   0, 'h', 0, 0 },
  949:   {0,0,0,0, 0, 0, 0}
  950: };
  951: 
  952: static char err_buf[200];
  953: 
  954: 
  955: /**
  956:  * Store the option error message, if any, so that we can log the
  957:  * connection attempt (which requires parsing the options), and then
  958:  * show the error later on.
  959:  **/
  960: void option_error(void)
  961: {
  962: 	if (!err_buf[0]) {
  963: 		strlcpy(err_buf, "Error parsing options: option may "
  964: 			"be supported on client but not on server?\n",
  965: 			sizeof err_buf);
  966: 	}
  967: 
  968: 	rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
  969: 	io_flush(MSG_FLUSH);
  970: 	msleep(20);
  971: }
  972: 
  973: 
  974: static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
  975: {
  976: 	struct poptOption *op;
  977: 	char shortName[2];
  978: 	int is_wild = strpbrk(ref, "*?[") != NULL;
  979: 	int found_match = 0;
  980: 
  981: 	shortName[1] = '\0';
  982: 
  983: 	if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
  984: 		ref = "[ardlptgoD]";
  985: 		is_wild = 1;
  986: 	}
  987: 
  988: 	for (op = long_options; op != list_end; op++) {
  989: 		*shortName = op->shortName;
  990: 		if ((op->longName && wildmatch(ref, op->longName))
  991: 		 || (*shortName && wildmatch(ref, shortName))) {
  992: 			if (op->descrip[1] == '*')
  993: 				op->descrip = negated ? "a*" : "r*";
  994: 			else if (!is_wild)
  995: 				op->descrip = negated ? "a=" : "r=";
  996: 			found_match = 1;
  997: 			if (!is_wild)
  998: 				break;
  999: 		}
 1000: 	}
 1001: 
 1002: 	if (!found_match)
 1003: 		rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
 1004: }
 1005: 
 1006: 
 1007: /**
 1008:  * Tweak the option table to disable all options that the rsyncd.conf
 1009:  * file has told us to refuse.
 1010:  **/
 1011: static void set_refuse_options(void)
 1012: {
 1013: 	struct poptOption *op, *list_end = NULL;
 1014: 	char *cp, *ref = lp_refuse_options(module_id);
 1015: 	int negated;
 1016: 
 1017: 	if (!ref)
 1018: 		ref = "";
 1019: 
 1020: 	if (!am_daemon)
 1021: 		ref = "";
 1022: 
 1023: 	/* We abuse the descrip field in poptOption to make it easy to flag which options
 1024: 	 * are refused (since we don't use it otherwise).  Start by marking all options
 1025: 	 * as "a"ccepted with a few options also marked as non-wild. */
 1026: 	for (op = long_options; ; op++) {
 1027: 		const char *longName = op->longName ? op->longName : "";
 1028: 		if (!op->longName && !op->shortName) {
 1029: 			list_end = op;
 1030: 			break;
 1031: 		}
 1032: 		if (!am_daemon
 1033: 		 || op->shortName == 'e' /* Required for compatibility flags */
 1034: 		 || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
 1035: 		 || op->shortName == 's' /* --protect-args is always OK */
 1036: 		 || op->shortName == 'n' /* --dry-run is always OK */
 1037: 		 || strcmp("iconv", longName) == 0
 1038: 		 || strcmp("no-iconv", longName) == 0
 1039: 		 || strcmp("checksum-seed", longName) == 0
 1040: 		 || strcmp("copy-devices", longName) == 0 /* disable wild-match (it gets refused below) */
 1041: 		 || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
 1042: 		 || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
 1043: 		 || strcmp("sender", longName) == 0
 1044: 		 || strcmp("server", longName) == 0)
 1045: 			op->descrip = "a="; /* exact-match only */
 1046: 		else
 1047: 			op->descrip = "a*"; /* wild-card-able */
 1048: 	}
 1049: 	assert(list_end != NULL);
 1050: 
 1051: 	if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
 1052: 		parse_one_refuse_match(0, "copy-devices", list_end);
 1053: 		parse_one_refuse_match(0, "write-devices", list_end);
 1054: 	}
 1055: 
 1056: 	while (1) {
 1057: 		while (*ref == ' ') ref++;
 1058: 		if (!*ref)
 1059: 			break;
 1060: 		if ((cp = strchr(ref, ' ')) != NULL)
 1061: 			*cp = '\0';
 1062: 		negated = *ref == '!';
 1063: 		if (negated && ref[1])
 1064: 			ref++;
 1065: 		parse_one_refuse_match(negated, ref, list_end);
 1066: 		if (!cp)
 1067: 			break;
 1068: 		*cp = ' ';
 1069: 		ref = cp + 1;
 1070: 	}
 1071: 
 1072: 	if (*lp_link_by_hash_dir(module_id))
 1073: 		parse_one_refuse_match(0, "link-by-hash", list_end);
 1074: 
 1075: 	if (am_daemon) {
 1076: #ifdef ICONV_OPTION
 1077: 		if (!*lp_charset(module_id))
 1078: 			parse_one_refuse_match(0, "iconv", list_end);
 1079: #endif
 1080: 		parse_one_refuse_match(0, "log-file*", list_end);
 1081: 		parse_one_refuse_match(0, "db", list_end);
 1082: 		parse_one_refuse_match(0, "db-lax", list_end);
 1083: 	}
 1084: 
 1085: #ifndef SUPPORT_ATIMES
 1086: 	parse_one_refuse_match(0, "atimes", list_end);
 1087: #endif
 1088: #ifndef SUPPORT_HARD_LINKS
 1089: 	parse_one_refuse_match(0, "link-dest", list_end);
 1090: #endif
 1091: #ifndef FICLONE
 1092: 	parse_one_refuse_match(0, "clone-dest", list_end);
 1093: #endif
 1094: #ifndef HAVE_MKTIME
 1095: 	parse_one_refuse_match(0, "stop-at", list_end);
 1096: #endif
 1097: #ifndef ICONV_OPTION
 1098: 	parse_one_refuse_match(0, "iconv", list_end);
 1099: #endif
 1100: #ifndef HAVE_SETVBUF
 1101: 	parse_one_refuse_match(0, "outbuf", list_end);
 1102: #endif
 1103: #ifndef SUPPORT_CRTIMES
 1104: 	parse_one_refuse_match(0, "crtimes", list_end);
 1105: #endif
 1106: #ifndef SUPPORT_FILEFLAGS
 1107: 	parse_one_refuse_match(0, "fileflags", list_end);
 1108: #endif
 1109: #ifndef SUPPORT_FORCE_CHANGE
 1110: 	parse_one_refuse_match(0, "force-change", list_end);
 1111: 	parse_one_refuse_match(0, "force-uchange", list_end);
 1112: 	parse_one_refuse_match(0, "force-schange", list_end);
 1113: #endif
 1114: #ifndef SUPPORT_HFS_COMPRESSION
 1115: 	parse_one_refuse_match(0, "hfs-compression", list_end);
 1116: 	parse_one_refuse_match(0, "protect-decmpfs", list_end);
 1117: #endif
 1118: 
 1119: 	/* Now we use the descrip values to actually mark the options for refusal. */
 1120: 	for (op = long_options; op != list_end; op++) {
 1121: 		int refused = op->descrip[0] == 'r';
 1122: 		op->descrip = NULL;
 1123: 		if (!refused)
 1124: 			continue;
 1125: 		if (op->argInfo == POPT_ARG_VAL)
 1126: 			op->argInfo = POPT_ARG_NONE;
 1127: 		op->val = (op - long_options) + OPT_REFUSED_BASE;
 1128: 		/* The following flags are set to let us easily check an implied option later in the code. */
 1129: 		switch (op->shortName) {
 1130: 		case 'r': case 'd': case 'l': case 'p':
 1131: 		case 't': case 'g': case 'o': case 'D':
 1132: 			refused_archive_part = op->val;
 1133: 			break;
 1134: 		case 'z':
 1135: 			refused_compress = op->val;
 1136: 			break;
 1137: 		case '\0':
 1138: 			if (strcmp("delete", op->longName) == 0)
 1139: 				refused_delete = op->val;
 1140: 			else if (strcmp("delete-before", op->longName) == 0)
 1141: 				refused_delete_before = op->val;
 1142: 			else if (strcmp("delete-during", op->longName) == 0)
 1143: 				refused_delete_during = op->val;
 1144: 			else if (strcmp("partial", op->longName) == 0)
 1145: 				refused_partial = op->val;
 1146: 			else if (strcmp("progress", op->longName) == 0)
 1147: 				refused_progress = op->val;
 1148: 			else if (strcmp("inplace", op->longName) == 0)
 1149: 				refused_inplace = op->val;
 1150: 			else if (strcmp("no-iconv", op->longName) == 0)
 1151: 				refused_no_iconv = op->val;
 1152: 			break;
 1153: 		}
 1154: 	}
 1155: }
 1156: 
 1157: 
 1158: static int count_args(const char **argv)
 1159: {
 1160: 	int i = 0;
 1161: 
 1162: 	if (argv) {
 1163: 		while (argv[i] != NULL)
 1164: 			i++;
 1165: 	}
 1166: 
 1167: 	return i;
 1168: }
 1169: 
 1170: /* If the size_arg is an invalid string or the value is < min_value, an error
 1171:  * is put into err_buf & the return is -1.  Note that this parser does NOT
 1172:  * support negative numbers, so a min_value < 0 doesn't make any sense. */
 1173: static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name,
 1174: 			      ssize_t min_value, ssize_t max_value, BOOL unlimited_0)
 1175: {
 1176: 	int reps, mult, len;
 1177: 	const char *arg, *err = "invalid", *min_max = NULL;
 1178: 	ssize_t limit = -1, size = 1;
 1179: 
 1180: 	for (arg = size_arg; isDigit(arg); arg++) {}
 1181: 	if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */
 1182: 		for (arg++; isDigit(arg); arg++) {}
 1183: 	switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
 1184: 	case 'b': case 'B':
 1185: 		reps = 0;
 1186: 		break;
 1187: 	case 'k': case 'K':
 1188: 		reps = 1;
 1189: 		break;
 1190: 	case 'm': case 'M':
 1191: 		reps = 2;
 1192: 		break;
 1193: 	case 'g': case 'G':
 1194: 		reps = 3;
 1195: 		break;
 1196: 	case 't': case 'T':
 1197: 		reps = 4;
 1198: 		break;
 1199: 	case 'p': case 'P':
 1200: 		reps = 5;
 1201: 		break;
 1202: 	default:
 1203: 		goto failure;
 1204: 	}
 1205: 	if (*arg == 'b' || *arg == 'B')
 1206: 		mult = 1000, arg++;
 1207: 	else if (!*arg || *arg == '+' || *arg == '-')
 1208: 		mult = 1024;
 1209: 	else if (strncasecmp(arg, "ib", 2) == 0)
 1210: 		mult = 1024, arg += 2;
 1211: 	else
 1212: 		goto failure;
 1213: 	while (reps--)
 1214: 		size *= mult;
 1215: 	size *= atof(size_arg);
 1216: 	if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg)
 1217: 		size += atoi(arg), arg += 2;
 1218: 	if (*arg)
 1219: 		goto failure;
 1220: 	if (size < 0 || (max_value >= 0 && size > max_value)) {
 1221: 		err = "too large";
 1222: 		min_max = "max";
 1223: 		limit = max_value;
 1224: 		goto failure;
 1225: 	}
 1226: 	if (size < min_value && (!unlimited_0 || size != 0)) {
 1227: 		err = "too small";
 1228: 		min_max = "min";
 1229: 		limit = min_value;
 1230: 		goto failure;
 1231: 	}
 1232: 	return size;
 1233: 
 1234: failure:
 1235: 	len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err);
 1236: 	if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) {
 1237: 		len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)",
 1238: 			min_max, do_big_num(limit, 3, NULL),
 1239: 			unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : "");
 1240: 	}
 1241: 	err_buf[len] = '\n';
 1242: 	err_buf[len+1] = '\0';
 1243: 	return -1;
 1244: }
 1245: 
 1246: #ifdef HAVE_MKTIME
 1247: /* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while
 1248:  * also allowing abbreviated data.  For instance, if the time is omitted,
 1249:  * it defaults to midnight.  If the date is omitted, it defaults to the
 1250:  * next possible date in the future with the specified time.  Even the
 1251:  * year or year-month can be omitted, again defaulting to the next date
 1252:  * in the future that matches the specified information.  A 2-digit year
 1253:  * is also OK, as is using '/' instead of '-'. */
 1254: static time_t parse_time(const char *arg)
 1255: {
 1256: 	const char *cp;
 1257: 	time_t val, now = time(NULL);
 1258: 	struct tm t, *today = localtime(&now);
 1259: 	int in_date, old_mday, n;
 1260: 
 1261: 	memset(&t, 0, sizeof t);
 1262: 	t.tm_year = t.tm_mon = t.tm_mday = -1;
 1263: 	t.tm_hour = t.tm_min = t.tm_isdst = -1;
 1264: 	cp = arg;
 1265: 	if (*cp == 'T' || *cp == 't' || *cp == ':') {
 1266: 		in_date = *cp == ':' ? 0 : -1;
 1267: 		cp++;
 1268: 	} else
 1269: 		in_date = 1;
 1270: 	for ( ; ; cp++) {
 1271: 		if (!isDigit(cp))
 1272: 			return (time_t)-1;
 1273: 		n = 0;
 1274: 		do {
 1275: 			n = n * 10 + *cp++ - '0';
 1276: 		} while (isDigit(cp));
 1277: 		if (*cp == ':')
 1278: 			in_date = 0;
 1279: 		if (in_date > 0) {
 1280: 			if (t.tm_year != -1)
 1281: 				return (time_t)-1;
 1282: 			t.tm_year = t.tm_mon;
 1283: 			t.tm_mon = t.tm_mday;
 1284: 			t.tm_mday = n;
 1285: 			if (!*cp)
 1286: 				break;
 1287: 			if (*cp == 'T' || *cp == 't') {
 1288: 				if (!cp[1])
 1289: 					break;
 1290: 				in_date = -1;
 1291: 			} else if (*cp != '-' && *cp != '/')
 1292: 				return (time_t)-1;
 1293: 			continue;
 1294: 		}
 1295: 		if (t.tm_hour != -1)
 1296: 			return (time_t)-1;
 1297: 		t.tm_hour = t.tm_min;
 1298: 		t.tm_min = n;
 1299: 		if (!*cp) {
 1300: 			if (in_date < 0)
 1301: 				return (time_t)-1;
 1302: 			break;
 1303: 		}
 1304: 		if (*cp != ':')
 1305: 			return (time_t)-1;
 1306: 		in_date = 0;
 1307: 	}
 1308: 
 1309: 	in_date = 0;
 1310: 	if (t.tm_year < 0) {
 1311: 		t.tm_year = today->tm_year;
 1312: 		in_date = 1;
 1313: 	} else if (t.tm_year < 100) {
 1314: 		while (t.tm_year < today->tm_year)
 1315: 			t.tm_year += 100;
 1316: 	} else
 1317: 		t.tm_year -= 1900;
 1318: 	if (t.tm_mon < 0) {
 1319: 		t.tm_mon = today->tm_mon;
 1320: 		in_date = 2;
 1321: 	} else
 1322: 		t.tm_mon--;
 1323: 	if (t.tm_mday < 0) {
 1324: 		t.tm_mday = today->tm_mday;
 1325: 		in_date = 3;
 1326: 	}
 1327: 
 1328: 	n = 0;
 1329: 	if (t.tm_min < 0) {
 1330: 		t.tm_hour = t.tm_min = 0;
 1331: 	} else if (t.tm_hour < 0) {
 1332: 		if (in_date != 3)
 1333: 			return (time_t)-1;
 1334: 		in_date = 0;
 1335: 		t.tm_hour = today->tm_hour;
 1336: 		n = 60*60;
 1337: 	}
 1338: 
 1339: 	/* Note that mktime() might change a too-large tm_mday into the start of
 1340: 	 * the following month which we need to undo in the following code! */
 1341: 	old_mday = t.tm_mday;
 1342: 	if (t.tm_hour > 23 || t.tm_min > 59
 1343: 	    || t.tm_mon < 0 || t.tm_mon >= 12
 1344: 	    || t.tm_mday < 1 || t.tm_mday > 31
 1345: 	    || (val = mktime(&t)) == (time_t)-1)
 1346: 		return (time_t)-1;
 1347: 
 1348: 	while (in_date && (val <= now || t.tm_mday < old_mday)) {
 1349: 		switch (in_date) {
 1350: 		case 3:
 1351: 			old_mday = ++t.tm_mday;
 1352: 			break;
 1353: 		case 2:
 1354: 			if (t.tm_mday < old_mday)
 1355: 				t.tm_mday = old_mday; /* The month already got bumped forward */
 1356: 			else if (++t.tm_mon == 12) {
 1357: 				t.tm_mon = 0;
 1358: 				t.tm_year++;
 1359: 			}
 1360: 			break;
 1361: 		case 1:
 1362: 			if (t.tm_mday < old_mday) {
 1363: 				/* mon==1 mday==29 got bumped to mon==2 */
 1364: 				if (t.tm_mon != 2 || old_mday != 29)
 1365: 					return (time_t)-1;
 1366: 				t.tm_mon = 1;
 1367: 				t.tm_mday = 29;
 1368: 			}
 1369: 			t.tm_year++;
 1370: 			break;
 1371: 		}
 1372: 		if ((val = mktime(&t)) == (time_t)-1) {
 1373: 			/* This code shouldn't be needed, as mktime() should auto-round to the next month. */
 1374: 			if (in_date != 3 || t.tm_mday <= 28)
 1375: 				return (time_t)-1;
 1376: 			t.tm_mday = old_mday = 1;
 1377: 			in_date = 2;
 1378: 		}
 1379: 	}
 1380: 	if (n) {
 1381: 		while (val <= now)
 1382: 			val += n;
 1383: 	}
 1384: 	return val;
 1385: }
 1386: #endif
 1387: 
 1388: static void create_refuse_error(int which)
 1389: {
 1390: 	const char *msg;
 1391: 	if (am_daemon)
 1392: 		msg = "The server is configured to refuse";
 1393: 	else if (am_server)
 1394: 		msg = "The server does not support";
 1395: 	else
 1396: 		msg = "This rsync does not support";
 1397: 
 1398: 	/* The "which" value is the index + OPT_REFUSED_BASE. */
 1399: 	struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
 1400: 	int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
 1401: 	if (op->shortName)
 1402: 		snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
 1403: }
 1404: 
 1405: static NORETURN void parse_dbonly_args(int argc, const char **argv)
 1406: {
 1407: 	poptContext pc = poptGetContext(RSYNC_NAME, argc, argv, long_dbonly_options, 0);
 1408: 	const char *arg;
 1409: 	int opt;
 1410: 
 1411: 	recurse = 1;
 1412: 	am_dbadmin = 1;
 1413: 
 1414: 	while ((opt = poptGetNextOpt(pc)) != -1) {
 1415: 		const char *cp;
 1416: 		switch (opt) {
 1417: 		case 'o':
 1418: 			for (cp = poptGetOptArg(pc); *cp; cp++) {
 1419: 				switch (toLower(cp)) {
 1420: 				case 'n':
 1421: 					db_output_name = 1;
 1422: 					break;
 1423: 				case 's':
 1424: 				case 'c':
 1425: 					db_output_sum = db_output_name = 1;
 1426: 					break;
 1427: 				case 'i':
 1428: 					db_output_info = db_output_name = 1;
 1429: 					break;
 1430: 				case 'u':
 1431: 					db_output_unchanged = db_output_name = 1;
 1432: 					break;
 1433: 				case 'd':
 1434: 					db_output_dirs = 1;
 1435: 					break;
 1436: 				}
 1437: 			}
 1438: 			saw_db_output_opt = 1;
 1439: 			break;
 1440: 
 1441: 		case 's':
 1442: 			for (cp = poptGetOptArg(pc); *cp; cp++) {
 1443: 				switch (*cp) {
 1444: 				case '4':
 1445: 					db_do_md4 = 1;
 1446: 					break;
 1447: 				case '5':
 1448: 					db_do_md5 = 1;
 1449: 					break;
 1450: 				}
 1451: 			}
 1452: 			saw_db_sum_opt = 1;
 1453: 			break;
 1454: 
 1455: 		case 'h':
 1456: 			dbonly_usage(FINFO);
 1457: 			exit_cleanup(0);
 1458: 
 1459: 		case OPT_INFO:
 1460: 			arg = poptGetOptArg(pc);
 1461: 			parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
 1462: 			break;
 1463: 
 1464: 		case OPT_DEBUG:
 1465: 			arg = poptGetOptArg(pc);
 1466: 			parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
 1467: 			break;
 1468: 
 1469: 		default:
 1470: 			rprintf(FERROR,
 1471: 				"rsyncdb: %s: %s\n",
 1472: 				poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 1473: 				poptStrerror(opt));
 1474: 			goto dbonly_usage;
 1475: 		}
 1476: 	}
 1477: 
 1478: 	if (!db_config) {
 1479: 		rprintf(FERROR, "You must specify the --db=FILE option.\n");
 1480: 	  dbonly_usage:
 1481: 		rprintf(FERROR,
 1482: 			"(Type \"rsyncdb --help\" for assistance.)\n");
 1483: 		exit_cleanup(RERR_SYNTAX);
 1484: 	}
 1485: 
 1486: 	if (!saw_db_output_opt && !quiet) {
 1487: 		db_output_dirs = db_output_name = 1;
 1488: 		if (db_check)
 1489: 			db_output_info = 1;
 1490: 	}
 1491: 	if (!quiet)
 1492: 		db_output_msgs = 1;
 1493: 	if (!saw_db_sum_opt)
 1494: 		db_do_md5 = 1;
 1495: 
 1496: 	am_starting_up = 0;
 1497: 	run_dbonly(poptGetArgs(pc));
 1498: 	exit(42); /* NOT REACHED */
 1499: }
 1500: 
 1501: /* This is used to make sure that --daemon & --server cannot be aliased to
 1502:  * something else. These options have always disabled popt aliases for the
 1503:  * parsing of a daemon or server command-line, but we have to make sure that
 1504:  * these options cannot vanish so that the alias disabling can take effect. */
 1505: static void popt_unalias(poptContext con, const char *opt)
 1506: {
 1507: 	struct poptAlias unalias;
 1508: 
 1509: 	memset(&unalias, 0, sizeof unalias);
 1510: 
 1511: 	unalias.longName = opt + 2; /* point past the leading "--" */
 1512: 	unalias.argc = 1;
 1513: 	unalias.argv = new_array0(const char*, 2);
 1514: 	unalias.argv[0] = strdup(opt);
 1515: 
 1516: 	poptAddAlias(con, unalias, 0);
 1517: }
 1518: 
 1519: char *alt_dest_opt(int type)
 1520: {
 1521: 	if (!type)
 1522: 		type = alt_dest_type;
 1523: 
 1524: 	switch (type) {
 1525: 	case COMPARE_DEST:
 1526: 		return "--compare-dest";
 1527: 	case COPY_DEST:
 1528: 		return "--copy-dest";
 1529: 	case LINK_DEST:
 1530: 		return "--link-dest";
 1531: 	case CLONE_DEST:
 1532: 		return "--clone-dest";
 1533: 	default:
 1534: 		NOISY_DEATH("Unknown alt_dest_opt type");
 1535: 	}
 1536: }
 1537: 
 1538: /**
 1539:  * Process command line arguments.  Called on both local and remote.
 1540:  *
 1541:  * @retval 1 if all options are OK; with globals set to appropriate
 1542:  * values
 1543:  *
 1544:  * @retval 0 on error, with err_buf containing an explanation
 1545:  **/
 1546: int parse_arguments(int *argc_p, const char ***argv_p)
 1547: {
 1548: 	static poptContext pc;
 1549: 	const char *arg, **argv = *argv_p;
 1550: 	int argc = *argc_p;
 1551: 	int opt, want_dest_type;
 1552: 	int orig_protect_args = protect_args;
 1553: 
 1554: 	if (argc == 0) {
 1555: 		strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
 1556: 		return 0;
 1557: 	}
 1558: 
 1559: 	arg = *argv + strlen(*argv);
 1560: 	if (arg - *argv > 2 && strcmp(arg-2, "db") == 0) {
 1561: 		parse_dbonly_args(argc, argv);
 1562: 		/* NOT REACHED */
 1563: 	}
 1564: 
 1565: 	set_refuse_options();
 1566: 
 1567: #ifdef ICONV_OPTION
 1568: 	if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
 1569: 		iconv_opt = strdup(arg);
 1570: #endif
 1571: 
 1572: 	/* TODO: Call poptReadDefaultConfig; handle errors. */
 1573: 
 1574: 	/* The context leaks in case of an error, but if there's a
 1575: 	 * problem we always exit anyhow. */
 1576: 	if (pc)
 1577: 		poptFreeContext(pc);
 1578: 	pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
 1579: 	if (!am_server) {
 1580: 		poptReadDefaultConfig(pc, 0);
 1581: 		popt_unalias(pc, "--daemon");
 1582: 		popt_unalias(pc, "--server");
 1583: 	}
 1584: 
 1585: 	while ((opt = poptGetNextOpt(pc)) != -1) {
 1586: 		/* most options are handled automatically by popt;
 1587: 		 * only special cases are returned and listed here. */
 1588: 
 1589: 		switch (opt) {
 1590: 		case 'V':
 1591: 			version_opt_cnt++;
 1592: 			break;
 1593: 
 1594: 		case OPT_SERVER:
 1595: 			if (!am_server) {
 1596: 				/* Disable popt aliases on the server side and
 1597: 				 * then start parsing the options again. */
 1598: 				poptFreeContext(pc);
 1599: 				pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
 1600: 				am_server = 1;
 1601: 			}
 1602: #ifdef ICONV_OPTION
 1603: 			iconv_opt = NULL;
 1604: #endif
 1605: 			break;
 1606: 
 1607: 		case OPT_SENDER:
 1608: 			if (!am_server) {
 1609: 				usage(FERROR);
 1610: 				exit_cleanup(RERR_SYNTAX);
 1611: 			}
 1612: 			am_sender = 1;
 1613: 			break;
 1614: 
 1615: 		case OPT_DAEMON:
 1616: 			if (am_daemon) {
 1617: 				strlcpy(err_buf,
 1618: 					"Attempt to hack rsync thwarted!\n",
 1619: 					sizeof err_buf);
 1620: 				return 0;
 1621: 			}
 1622: #ifdef ICONV_OPTION
 1623: 			iconv_opt = NULL;
 1624: #endif
 1625: 			protect_args = 0;
 1626: 			poptFreeContext(pc);
 1627: 			pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0);
 1628: 			while ((opt = poptGetNextOpt(pc)) != -1) {
 1629: 				char **cpp;
 1630: 				switch (opt) {
 1631: 				case 'h':
 1632: 					daemon_usage(FINFO);
 1633: 					exit_cleanup(0);
 1634: 
 1635: 				case 'M':
 1636: 					arg = poptGetOptArg(pc);
 1637: 					if (!strchr(arg, '=')) {
 1638: 						rprintf(FERROR,
 1639: 							"--dparam value is missing an '=': %s\n",
 1640: 							arg);
 1641: 						goto daemon_error;
 1642: 					}
 1643: 					cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
 1644: 					*cpp = strdup(arg);
 1645: 					break;
 1646: 
 1647: 				case 'v':
 1648: 					verbose++;
 1649: 					break;
 1650: 
 1651: 				default:
 1652: 					rprintf(FERROR,
 1653: 						"rsync: %s: %s (in daemon mode)\n",
 1654: 						poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 1655: 						poptStrerror(opt));
 1656: 					goto daemon_error;
 1657: 				}
 1658: 			}
 1659: 
 1660: 			if (dparam_list.count && !set_dparams(1))
 1661: 				exit_cleanup(RERR_SYNTAX);
 1662: 
 1663: 			if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
 1664: 				snprintf(err_buf, sizeof err_buf,
 1665: 					 "the --temp-dir path is WAY too long.\n");
 1666: 				return 0;
 1667: 			}
 1668: 
 1669: 			if (!daemon_opt) {
 1670: 				rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
 1671: 			    daemon_error:
 1672: 				rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
 1673: 				exit_cleanup(RERR_SYNTAX);
 1674: 			}
 1675: 
 1676: 			*argv_p = argv = poptGetArgs(pc);
 1677: 			*argc_p = argc = count_args(argv);
 1678: 			am_starting_up = 0;
 1679: 			daemon_opt = 0;
 1680: 			am_daemon = 1;
 1681: 			return 1;
 1682: 
 1683: 		case OPT_DBONLY:
 1684: 			protect_args = 0;
 1685: 			poptFreeContext(pc);
 1686: 			parse_dbonly_args(argc, argv);
 1687: 			break; /* NOT REACHED */
 1688: 
 1689: 		case OPT_MODIFY_WINDOW:
 1690: 			/* The value has already been set by popt, but
 1691: 			 * we need to remember that we're using a
 1692: 			 * non-default setting. */
 1693: 			modify_window_set = 1;
 1694: 			break;
 1695: 
 1696: 		case OPT_FILTER:
 1697: 			parse_filter_str(&filter_list, poptGetOptArg(pc),
 1698: 					rule_template(0), 0);
 1699: 			break;
 1700: 
 1701: 		case OPT_EXCLUDE:
 1702: 			parse_filter_str(&filter_list, poptGetOptArg(pc),
 1703: 					rule_template(0), XFLG_OLD_PREFIXES);
 1704: 			break;
 1705: 
 1706: 		case OPT_INCLUDE:
 1707: 			parse_filter_str(&filter_list, poptGetOptArg(pc),
 1708: 					rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
 1709: 			break;
 1710: 
 1711: 		case OPT_EXCLUDE_FROM:
 1712: 		case OPT_INCLUDE_FROM:
 1713: 			arg = poptGetOptArg(pc);
 1714: 			if (sanitize_paths)
 1715: 				arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
 1716: 			if (daemon_filter_list.head) {
 1717: 				int rej;
 1718: 				char *cp = strdup(arg);
 1719: 				if (!*cp)
 1720: 					rej = 1;
 1721: 				else {
 1722: 					char *dir = cp + (*cp == '/' ? module_dirlen : 0);
 1723: 					clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
 1724: 					rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
 1725: 				}
 1726: 				free(cp);
 1727: 				if (rej)
 1728: 					goto options_rejected;
 1729: 			}
 1730: 			parse_filter_file(&filter_list, arg,
 1731: 				rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
 1732: 				XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
 1733: 			break;
 1734: 
 1735: 		case 'a':
 1736: 			if (refused_archive_part) {
 1737: 				create_refuse_error(refused_archive_part);
 1738: 				return 0;
 1739: 			}
 1740: 			if (!recurse) /* preserve recurse == 2 */
 1741: 				recurse = 1;
 1742: #ifdef SUPPORT_LINKS
 1743: 			preserve_links = 1;
 1744: #endif
 1745: 			preserve_perms = 1;
 1746: 			preserve_times = 1;
 1747: 			preserve_gid = 1;
 1748: 			preserve_uid = 1;
 1749: 			preserve_devices = 1;
 1750: 			preserve_specials = 1;
 1751: 			break;
 1752: 
 1753: 		case 'D':
 1754: 			preserve_devices = preserve_specials = 1;
 1755: 			break;
 1756: 
 1757: 		case OPT_NO_D:
 1758: 			preserve_devices = preserve_specials = 0;
 1759: 			break;
 1760: 
 1761: 		case OPT_NO_DB:
 1762: 			db_config = NULL;
 1763: 			break;
 1764: 
 1765: 		case 'h':
 1766: 			human_readable++;
 1767: 			break;
 1768: 
 1769: 		case 'H':
 1770: 			preserve_hard_links++;
 1771: 			break;
 1772: 
 1773: 		case 'i':
 1774: 			itemize_changes++;
 1775: 			break;
 1776: 
 1777: 		case 'U':
 1778: 			if (++preserve_atimes > 1)
 1779: 				open_noatime = 1;
 1780: 			break;
 1781: 
 1782: 		case 'v':
 1783: 			verbose++;
 1784: 			break;
 1785: 
 1786: 		case 'y':
 1787: 			fuzzy_basis++;
 1788: 			break;
 1789: 
 1790: 		case 'q':
 1791: 			quiet++;
 1792: 			break;
 1793: 
 1794: 		case 'x':
 1795: 			one_file_system++;
 1796: 			break;
 1797: 
 1798: 		case 'F':
 1799: 			switch (++F_option_cnt) {
 1800: 			case 1:
 1801: 				parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
 1802: 				break;
 1803: 			case 2:
 1804: 				parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
 1805: 				break;
 1806: 			}
 1807: 			break;
 1808: 
 1809: 		case 'P':
 1810: 			if (refused_partial || refused_progress) {
 1811: 				create_refuse_error(refused_partial ? refused_partial : refused_progress);
 1812: 				return 0;
 1813: 			}
 1814: 			do_progress = 1;
 1815: 			keep_partial = 1;
 1816: 			break;
 1817: 
 1818: 		case 'z':
 1819: 			do_compression++;
 1820: 			break;
 1821: 
 1822: 		case OPT_OLD_COMPRESS:
 1823: 			compress_choice = "zlib";
 1824: 			break;
 1825: 
 1826: 		case OPT_NEW_COMPRESS:
 1827: 			compress_choice = "zlibx";
 1828: 			break;
 1829: 
 1830: 		case OPT_NO_COMPRESS:
 1831: 			do_compression = 0;
 1832: 			compress_choice = NULL;
 1833: 			break;
 1834: 
 1835: 		case 'M':
 1836: 			arg = poptGetOptArg(pc);
 1837: 			if (*arg != '-') {
 1838: 				snprintf(err_buf, sizeof err_buf,
 1839: 					"Remote option must start with a dash: %s\n", arg);
 1840: 				return 0;
 1841: 			}
 1842: 			if (remote_option_cnt+2 >= remote_option_alloc) {
 1843: 				remote_option_alloc += 16;
 1844: 				remote_options = realloc_array(remote_options,
 1845: 							const char *, remote_option_alloc);
 1846: 				if (!remote_option_cnt)
 1847: 					remote_options[0] = "ARG0";
 1848: 			}
 1849: 			remote_options[++remote_option_cnt] = arg;
 1850: 			remote_options[remote_option_cnt+1] = NULL;
 1851: 			break;
 1852: 
 1853: 		case OPT_WRITE_BATCH:
 1854: 			/* batch_name is already set */
 1855: 			write_batch = 1;
 1856: 			break;
 1857: 
 1858: 		case OPT_ONLY_WRITE_BATCH:
 1859: 			/* batch_name is already set */
 1860: 			write_batch = -1;
 1861: 			break;
 1862: 
 1863: 		case OPT_READ_BATCH:
 1864: 			/* batch_name is already set */
 1865: 			read_batch = 1;
 1866: 			break;
 1867: 
 1868: 		case OPT_NO_ICONV:
 1869: #ifdef ICONV_OPTION
 1870: 			iconv_opt = NULL;
 1871: #endif
 1872: 			break;
 1873: 
 1874: 		case OPT_BLOCK_SIZE: {
 1875: 			/* We may not know the real protocol_version at this point if this is the client
 1876: 			 * option parsing, but we still want to check it so that the client can specify
 1877: 			 * a --protocol=29 option with a larger block size. */
 1878: 			int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
 1879: 			ssize_t size;
 1880: 			arg = poptGetOptArg(pc);
 1881: 			if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
 1882: 				return 0;
 1883: 			block_size = (int32)size;
 1884: 			break;
 1885: 		}
 1886: 
 1887: 		case OPT_MAX_SIZE:
 1888: 			if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0)
 1889: 				return 0;
 1890: 			max_size_arg = strdup(do_big_num(max_size, 0, NULL));
 1891: 			break;
 1892: 
 1893: 		case OPT_MIN_SIZE:
 1894: 			if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0)
 1895: 				return 0;
 1896: 			min_size_arg = strdup(do_big_num(min_size, 0, NULL));
 1897: 			break;
 1898: 
 1899: 		case OPT_BWLIMIT: {
 1900: 			ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True);
 1901: 			if (size < 0)
 1902: 				return 0;
 1903: 			bwlimit_arg = strdup(do_big_num(size, 0, NULL));
 1904: 			bwlimit = (size + 512) / 1024;
 1905: 			break;
 1906: 		}
 1907: 
 1908: 		case OPT_APPEND:
 1909: 			if (am_server)
 1910: 				append_mode++;
 1911: 			else
 1912: 				append_mode = 1;
 1913: 			break;
 1914: 
 1915: 		case OPT_LINK_DEST:
 1916: 			want_dest_type = LINK_DEST;
 1917: 			goto set_dest_dir;
 1918: 
 1919: 		case OPT_CLONE_DEST:
 1920: 			want_dest_type = CLONE_DEST;
 1921: 			goto set_dest_dir;
 1922: 
 1923: 		case OPT_COPY_DEST:
 1924: 			want_dest_type = COPY_DEST;
 1925: 			goto set_dest_dir;
 1926: 
 1927: 		case OPT_COMPARE_DEST:
 1928: 			want_dest_type = COMPARE_DEST;
 1929: 
 1930: 		set_dest_dir:
 1931: 			if (alt_dest_type && alt_dest_type != want_dest_type) {
 1932: 				snprintf(err_buf, sizeof err_buf,
 1933: 					"ERROR: the %s option conflicts with the %s option\n",
 1934: 					alt_dest_opt(want_dest_type), alt_dest_opt(0));
 1935: 				return 0;
 1936: 			}
 1937: 			alt_dest_type = want_dest_type;
 1938: 
 1939: 			if (basis_dir_cnt >= MAX_BASIS_DIRS) {
 1940: 				snprintf(err_buf, sizeof err_buf,
 1941: 					"ERROR: at most %d %s args may be specified\n",
 1942: 					MAX_BASIS_DIRS, alt_dest_opt(0));
 1943: 				return 0;
 1944: 			}
 1945: 			/* We defer sanitizing this arg until we know what
 1946: 			 * our destination directory is going to be. */
 1947: 			basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
 1948: 			break;
 1949: 
 1950: 		case OPT_CHMOD:
 1951: 			arg = poptGetOptArg(pc);
 1952: 			if (!parse_chmod(arg, &chmod_modes)) {
 1953: 				snprintf(err_buf, sizeof err_buf,
 1954: 					"Invalid argument passed to --chmod (%s)\n",
 1955: 					arg);
 1956: 				return 0;
 1957: 			}
 1958: 			break;
 1959: 
 1960: 		case OPT_SUMFILES:
 1961: 			arg = poptGetOptArg(pc);
 1962: 			if (*arg == '+') {
 1963: 				arg++;
 1964: 				checksum_files = CSF_UPDATE;
 1965: 				if (*arg == '+') {
 1966: 					arg++;
 1967: 					checksum_files |= CSF_AFFECT_DRYRUN;
 1968: 				}
 1969: 			} else
 1970: 				checksum_files = 0;
 1971: 			if (strcmp(arg, "lax") == 0)
 1972: 				checksum_files |= CSF_LAX_MODE;
 1973: 			else if (strcmp(arg, "strict") == 0)
 1974: 				checksum_files |= CSF_STRICT_MODE;
 1975: 			else if (strcmp(arg, "none") == 0)
 1976: 				checksum_files = CSF_IGNORE_FILES;
 1977: 			else {
 1978: 				snprintf(err_buf, sizeof err_buf,
 1979: 				    "Invalid argument passed to --sumfiles (%s)\n",
 1980: 				    arg);
 1981: 				return 0;
 1982: 			}
 1983: 			break;
 1984: 
 1985: 		case OPT_INFO:
 1986: 			arg = poptGetOptArg(pc);
 1987: 			parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
 1988: 			break;
 1989: 
 1990: 		case OPT_DEBUG:
 1991: 			arg = poptGetOptArg(pc);
 1992: 			parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
 1993: 			break;
 1994: 
 1995: 		case OPT_USERMAP:
 1996: 			if (usermap) {
 1997: 				if (usermap_via_chown) {
 1998: 					snprintf(err_buf, sizeof err_buf,
 1999: 						"--usermap conflicts with prior --chown.\n");
 2000: 					return 0;
 2001: 				}
 2002: 				snprintf(err_buf, sizeof err_buf,
 2003: 					"You can only specify --usermap once.\n");
 2004: 				return 0;
 2005: 			}
 2006: 			usermap = (char *)poptGetOptArg(pc);
 2007: 			usermap_via_chown = False;
 2008: 			break;
 2009: 
 2010: 		case OPT_GROUPMAP:
 2011: 			if (groupmap) {
 2012: 				if (groupmap_via_chown) {
 2013: 					snprintf(err_buf, sizeof err_buf,
 2014: 						"--groupmap conflicts with prior --chown.\n");
 2015: 					return 0;
 2016: 				}
 2017: 				snprintf(err_buf, sizeof err_buf,
 2018: 					"You can only specify --groupmap once.\n");
 2019: 				return 0;
 2020: 			}
 2021: 			groupmap = (char *)poptGetOptArg(pc);
 2022: 			groupmap_via_chown = False;
 2023: 			break;
 2024: 
 2025: 		case OPT_CHOWN: {
 2026: 			const char *chown = poptGetOptArg(pc);
 2027: 			int len;
 2028: 			if ((arg = strchr(chown, ':')) != NULL)
 2029: 				len = arg++ - chown;
 2030: 			else
 2031: 				len = strlen(chown);
 2032: 			if (len) {
 2033: 				if (usermap) {
 2034: 					if (!usermap_via_chown) {
 2035: 						snprintf(err_buf, sizeof err_buf,
 2036: 							"--chown conflicts with prior --usermap.\n");
 2037: 						return 0;
 2038: 					}
 2039: 					snprintf(err_buf, sizeof err_buf,
 2040: 						"You can only specify a user-affecting --chown once.\n");
 2041: 					return 0;
 2042: 				}
 2043: 				if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
 2044: 					out_of_memory("parse_arguments");
 2045: 				usermap_via_chown = True;
 2046: 			}
 2047: 			if (arg && *arg) {
 2048: 				if (groupmap) {
 2049: 					if (!groupmap_via_chown) {
 2050: 						snprintf(err_buf, sizeof err_buf,
 2051: 							"--chown conflicts with prior --groupmap.\n");
 2052: 						return 0;
 2053: 					}
 2054: 					snprintf(err_buf, sizeof err_buf,
 2055: 						"You can only specify a group-affecting --chown once.\n");
 2056: 					return 0;
 2057: 				}
 2058: 				if (asprintf(&groupmap, "*:%s", arg) < 0)
 2059: 					out_of_memory("parse_arguments");
 2060: 				groupmap_via_chown = True;
 2061: 			}
 2062: 			break;
 2063: 		}
 2064: 
 2065: 		case OPT_HELP:
 2066: 			usage(FINFO);
 2067: 			exit_cleanup(0);
 2068: 
 2069: 		case 'A':
 2070: #ifdef SUPPORT_ACLS
 2071: 			preserve_acls = 1;
 2072: 			preserve_perms = 1;
 2073: 			break;
 2074: #else
 2075: 			/* FIXME: this should probably be ignored with a
 2076: 			 * warning and then countermeasures taken to
 2077: 			 * restrict group and other access in the presence
 2078: 			 * of any more restrictive ACLs, but this is safe
 2079: 			 * for now */
 2080: 			snprintf(err_buf,sizeof(err_buf),
 2081: 				 "ACLs are not supported on this %s\n",
 2082: 				 am_server ? "server" : "client");
 2083: 			return 0;
 2084: #endif
 2085: 
 2086: 		case 'X':
 2087: #ifdef SUPPORT_XATTRS
 2088: 			preserve_xattrs++;
 2089: 			break;
 2090: #else
 2091: 			snprintf(err_buf,sizeof(err_buf),
 2092: 				 "extended attributes are not supported on this %s\n",
 2093: 				 am_server ? "server" : "client");
 2094: 			return 0;
 2095: #endif
 2096: 
 2097:                 case OPT_LINK_BY_HASH:
 2098: #ifdef HAVE_LINK
 2099: 			arg = poptGetOptArg(pc);
 2100: 			if (sanitize_paths)
 2101: 				arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
 2102: 			link_by_hash_dir = (char *)arg;
 2103: 			break;
 2104: #else
 2105: 			snprintf(err_buf, sizeof err_buf,
 2106: 				 "hard links are not supported on this %s\n",
 2107: 				 am_server ? "server" : "client");
 2108: 			return 0;
 2109: #endif
 2110: 
 2111: 		case OPT_STOP_AFTER: {
 2112: 			long val;
 2113: 			arg = poptGetOptArg(pc);
 2114: 			stop_at_utime = time(NULL);
 2115: 			if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) {
 2116: 				snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg);
 2117: 				return 0;
 2118: 			}
 2119: 			stop_at_utime += val;
 2120: 			break;
 2121: 		}
 2122: 
 2123: #ifdef HAVE_MKTIME
 2124: 		case OPT_STOP_AT:
 2125: 			arg = poptGetOptArg(pc);
 2126: 			if ((stop_at_utime = parse_time(arg)) == (time_t)-1) {
 2127: 				snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg);
 2128: 				return 0;
 2129: 			}
 2130: 			if (stop_at_utime <= time(NULL)) {
 2131: 				snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg);
 2132: 				return 0;
 2133: 			}
 2134: 			break;
 2135: #endif
 2136: 
 2137: 		case OPT_STDERR: {
 2138: 			int len;
 2139: 			arg = poptGetOptArg(pc);
 2140: 			len = strlen(arg);
 2141: 			if (len && strncmp("errors", arg, len) == 0)
 2142: 				msgs2stderr = 2;
 2143: 			else if (len && strncmp("all", arg, len) == 0)
 2144: 				msgs2stderr = 1;
 2145: 			else if (len && strncmp("client", arg, len) == 0)
 2146: 				msgs2stderr = 0;
 2147: 			else {
 2148: 				snprintf(err_buf, sizeof err_buf,
 2149: 					"--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
 2150: 				return 0;
 2151: 			}
 2152: 			break;
 2153: 		}
 2154: 
 2155: 		default:
 2156: 			/* A large opt value means that set_refuse_options()
 2157: 			 * turned this option off. */
 2158: 			if (opt >= OPT_REFUSED_BASE) {
 2159: 				create_refuse_error(opt);
 2160: 				return 0;
 2161: 			}
 2162: 			snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
 2163: 				 am_server ? "on remote machine: " : "",
 2164: 				 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 2165: 				 poptStrerror(opt));
 2166: 			return 0;
 2167: 		}
 2168: 	}
 2169: 
 2170: 	if (version_opt_cnt) {
 2171: 		print_rsync_version(FINFO);
 2172: 		exit_cleanup(0);
 2173: 	}
 2174: 
 2175: 	if (!max_alloc_arg) {
 2176: 		max_alloc_arg = getenv("RSYNC_MAX_ALLOC");
 2177: 		if (max_alloc_arg && !*max_alloc_arg)
 2178: 			max_alloc_arg = NULL;
 2179: 	}
 2180: 	if (max_alloc_arg) {
 2181: 		ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True);
 2182: 		if (size < 0)
 2183: 			return 0;
 2184: 		max_alloc = size;
 2185: 	}
 2186: 
 2187: 	if (protect_args < 0) {
 2188: 		if (am_server)
 2189: 			protect_args = 0;
 2190: 		else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
 2191: 			protect_args = atoi(arg) ? 1 : 0;
 2192: 		else {
 2193: #ifdef RSYNC_USE_PROTECTED_ARGS
 2194: 			protect_args = 1;
 2195: #else
 2196: 			protect_args = 0;
 2197: #endif
 2198: 		}
 2199: 	}
 2200: 
 2201: 	if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
 2202: 		/* Call this early to verify the args and figure out if we need to force
 2203: 		 * --whole-file. Note that the parse function will get called again later,
 2204: 		 * just in case an "auto" choice needs to know the protocol_version. */
 2205: 		parse_checksum_choice(0);
 2206: 	} else
 2207: 		checksum_choice = NULL;
 2208: 
 2209: 	if (human_readable > 1 && argc == 2 && !am_server) {
 2210: 		/* Allow the old meaning of 'h' (--help) on its own. */
 2211: 		usage(FINFO);
 2212: 		exit_cleanup(0);
 2213: 	}
 2214: 
 2215: 	if (!compress_choice && do_compression > 1)
 2216: 		compress_choice = "zlibx";
 2217: 	if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
 2218: 		parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
 2219: 	else
 2220: 		compress_choice = NULL;
 2221: 
 2222: 	if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
 2223: 		if (!do_compression)
 2224: 			do_compression = CPRES_AUTO;
 2225: 		if (do_compression && refused_compress) {
 2226: 			create_refuse_error(refused_compress);
 2227: 			return 0;
 2228: 		}
 2229: 	}
 2230: 
 2231: #ifdef HAVE_SETVBUF
 2232: 	if (outbuf_mode && !am_server) {
 2233: 		int mode = *(uchar *)outbuf_mode;
 2234: 		if (islower(mode))
 2235: 			mode = toupper(mode);
 2236: 		fflush(stdout); /* Just in case... */
 2237: 		switch (mode) {
 2238: 		case 'N': /* None */
 2239: 		case 'U': /* Unbuffered */
 2240: 			mode = _IONBF;
 2241: 			break;
 2242: 		case 'L': /* Line */
 2243: 			mode = _IOLBF;
 2244: 			break;
 2245: 		case 'B': /* Block */
 2246: 		case 'F': /* Full */
 2247: 			mode = _IOFBF;
 2248: 			break;
 2249: 		default:
 2250: 			snprintf(err_buf, sizeof err_buf,
 2251: 				"Invalid --outbuf setting -- specify N, L, or B.\n");
 2252: 			return 0;
 2253: 		}
 2254: 		setvbuf(stdout, (char *)NULL, mode, 0);
 2255: 	}
 2256: 
 2257: 	if (msgs2stderr == 1) { /* Are all messages going to stderr? */
 2258: 		/* Make stderr line buffered for better sharing of the stream. */
 2259: 		fflush(stderr); /* Just in case... */
 2260: 		setvbuf(stderr, (char *)NULL, _IOLBF, 0);
 2261: 	}
 2262: #endif
 2263: 
 2264: 	set_output_verbosity(verbose, DEFAULT_PRIORITY);
 2265: 
 2266: 	if (do_stats) {
 2267: 		parse_output_words(info_words, info_levels,
 2268: 			verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
 2269: 	}
 2270: 
 2271: #ifdef ICONV_OPTION
 2272: 	if (iconv_opt && protect_args != 2) {
 2273: 		if (!am_server && strcmp(iconv_opt, "-") == 0)
 2274: 			iconv_opt = NULL;
 2275: 		else
 2276: 			need_unsorted_flist = 1;
 2277: 	}
 2278: 	if (refused_no_iconv && !iconv_opt) {
 2279: 		create_refuse_error(refused_no_iconv);
 2280: 		return 0;
 2281: 	}
 2282: #endif
 2283: 
 2284: 	if (fuzzy_basis > 1)
 2285: 		fuzzy_basis = basis_dir_cnt + 1;
 2286: 
 2287: 	/* Don't let the client reset protect_args if it was already processed */
 2288: 	if (orig_protect_args == 2 && am_server)
 2289: 		protect_args = orig_protect_args;
 2290: 
 2291: 	if (protect_args == 1 && am_server)
 2292: 		return 1;
 2293: 
 2294: 	*argv_p = argv = poptGetArgs(pc);
 2295: 	*argc_p = argc = count_args(argv);
 2296: 
 2297: #ifndef SUPPORT_LINKS
 2298: 	if (preserve_links && !am_sender) {
 2299: 		snprintf(err_buf, sizeof err_buf,
 2300: 			 "symlinks are not supported on this %s\n",
 2301: 			 am_server ? "server" : "client");
 2302: 		return 0;
 2303: 	}
 2304: #endif
 2305: 
 2306: #ifndef SUPPORT_HARD_LINKS
 2307: 	if (preserve_hard_links) {
 2308: 		snprintf(err_buf, sizeof err_buf,
 2309: 			 "hard links are not supported on this %s\n",
 2310: 			 am_server ? "server" : "client");
 2311: 		return 0;
 2312: 	}
 2313: #endif
 2314: 
 2315: #ifdef SUPPORT_XATTRS
 2316: 	if (am_root < 0 && preserve_xattrs > 1) {
 2317: 		snprintf(err_buf, sizeof err_buf,
 2318: 			 "--fake-super conflicts with -XX\n");
 2319: 		return 0;
 2320: 	}
 2321: #else
 2322: 	if (am_root < 0) {
 2323: 		snprintf(err_buf, sizeof err_buf,
 2324: 			 "--fake-super requires an rsync with extended attributes enabled\n");
 2325: 		return 0;
 2326: 	}
 2327: #endif
 2328: 
 2329: 	if (!always_checksum)
 2330: 		checksum_files = CSF_IGNORE_FILES;
 2331: 
 2332: #ifdef SUPPORT_HFS_COMPRESSION
 2333: 	if (preserve_hfs_compression) {
 2334: 		if (!preserve_xattrs)
 2335: 			preserve_xattrs = 1;
 2336: 		if (!preserve_fileflags)
 2337: 			preserve_fileflags = 1;
 2338: 	}
 2339: #endif
 2340: 
 2341: 	if (write_batch && read_batch) {
 2342: 		snprintf(err_buf, sizeof err_buf,
 2343: 			"--write-batch and --read-batch can not be used together\n");
 2344: 		return 0;
 2345: 	}
 2346: 	if (write_batch > 0 || read_batch) {
 2347: 		if (am_server) {
 2348: 			rprintf(FINFO,
 2349: 				"ignoring --%s-batch option sent to server\n",
 2350: 				write_batch ? "write" : "read");
 2351: 			/* We don't actually exit_cleanup(), so that we can
 2352: 			 * still service older version clients that still send
 2353: 			 * batch args to server. */
 2354: 			read_batch = write_batch = 0;
 2355: 			batch_name = NULL;
 2356: 		} else if (dry_run)
 2357: 			write_batch = 0;
 2358: 	} else if (write_batch < 0 && dry_run)
 2359: 		write_batch = 0;
 2360: 	if (read_batch && files_from) {
 2361: 		snprintf(err_buf, sizeof err_buf,
 2362: 			"--read-batch cannot be used with --files-from\n");
 2363: 		return 0;
 2364: 	}
 2365: 	if (read_batch && remove_source_files) {
 2366: 		snprintf(err_buf, sizeof err_buf,
 2367: 			"--read-batch cannot be used with --remove-%s-files\n",
 2368: 			remove_source_files == 1 ? "source" : "sent");
 2369: 		return 0;
 2370: 	}
 2371: 	if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
 2372: 		snprintf(err_buf, sizeof err_buf,
 2373: 			"the batch-file name must be %d characters or less.\n",
 2374: 			MAX_BATCH_NAME_LEN);
 2375: 		return 0;
 2376: 	}
 2377: 
 2378: 	if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
 2379: 		snprintf(err_buf, sizeof err_buf,
 2380: 			 "the --temp-dir path is WAY too long.\n");
 2381: 		return 0;
 2382: 	}
 2383: 
 2384: 	if (max_delete < 0 && max_delete != INT_MIN) {
 2385: 		/* Negative numbers are treated as "no deletions". */
 2386: 		max_delete = 0;
 2387: 	}
 2388: 
 2389: 	if (files_from) {
 2390: 		if (recurse == 1) /* preserve recurse == 2 */
 2391: 			recurse = 0;
 2392: 		if (xfer_dirs < 0)
 2393: 			xfer_dirs = 1;
 2394: 	}
 2395: 
 2396: 	if (argc < 2 && !read_batch && !am_server)
 2397: 		list_only |= 1;
 2398: 
 2399: 	if (xfer_dirs >= 4) {
 2400: 		parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
 2401: 		recurse = xfer_dirs = 1;
 2402: 	} else if (recurse)
 2403: 		xfer_dirs = 1;
 2404: 	else if (xfer_dirs < 0)
 2405: 		xfer_dirs = list_only ? 1 : 0;
 2406: 
 2407: 	if (relative_paths < 0)
 2408: 		relative_paths = files_from? 1 : 0;
 2409: 	if (!relative_paths)
 2410: 		implied_dirs = 0;
 2411: 
 2412: 	if (delete_before + !!delete_during + delete_after > 1) {
 2413: 		snprintf(err_buf, sizeof err_buf,
 2414: 			"You may not combine multiple --delete-WHEN options.\n");
 2415: 		return 0;
 2416: 	}
 2417: 	if (delete_before || delete_during || delete_after)
 2418: 		delete_mode = 1;
 2419: 	else if (delete_mode || delete_excluded) {
 2420: 		/* Only choose now between before & during if one is refused. */
 2421: 		if (refused_delete_before) {
 2422: 			if (!refused_delete_during)
 2423: 				delete_during = 1;
 2424: 			else {
 2425: 				create_refuse_error(refused_delete_before);
 2426: 				return 0;
 2427: 			}
 2428: 		} else if (refused_delete_during)
 2429: 			delete_before = 1;
 2430: 		delete_mode = 1;
 2431: 	}
 2432: 	if (!xfer_dirs && delete_mode) {
 2433: 		snprintf(err_buf, sizeof err_buf,
 2434: 			"--delete does not work without --recursive (-r) or --dirs (-d).\n");
 2435: 		return 0;
 2436: 	}
 2437: 
 2438: 	if (missing_args == 3) /* simplify if both options were specified */
 2439: 		missing_args = 2;
 2440: 	if (refused_delete && (delete_mode || missing_args == 2)) {
 2441: 		create_refuse_error(refused_delete);
 2442: 		return 0;
 2443: 	}
 2444: 
 2445: 	if (remove_source_files) {
 2446: 		/* We only want to infer this refusal of --remove-source-files
 2447: 		 * via the refusal of "delete", not any of the "delete-FOO"
 2448: 		 * options. */
 2449: 		if (refused_delete && am_sender) {
 2450: 			create_refuse_error(refused_delete);
 2451: 			return 0;
 2452: 		}
 2453: 		need_messages_from_generator = 1;
 2454: 	}
 2455: 
 2456: 	if (munge_symlinks && !am_daemon) {
 2457: 		STRUCT_STAT st;
 2458: 		char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
 2459: 		strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
 2460: 		if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
 2461: 			rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
 2462: 				prefix);
 2463: 			exit_cleanup(RERR_UNSUPPORTED);
 2464: 		}
 2465: 	}
 2466: 
 2467: 	if (sanitize_paths) {
 2468: 		int i;
 2469: 		for (i = argc; i-- > 0; )
 2470: 			argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
 2471: 		if (tmpdir)
 2472: 			tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
 2473: 		if (backup_dir)
 2474: 			backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
 2475: 		if (backup_dir_dels)
 2476: 			backup_dir_dels = sanitize_path(NULL, backup_dir_dels, NULL, 0, SP_DEFAULT);
 2477: 	}
 2478: 	if (daemon_filter_list.head && !am_sender) {
 2479: 		filter_rule_list *elp = &daemon_filter_list;
 2480: 		if (tmpdir) {
 2481: 			char *dir;
 2482: 			if (!*tmpdir)
 2483: 				goto options_rejected;
 2484: 			dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
 2485: 			clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
 2486: 			if (check_filter(elp, FLOG, dir, 1) < 0)
 2487: 				goto options_rejected;
 2488: 		}
 2489: 		if (backup_dir) {
 2490: 			char *dir;
 2491: 			if (!*backup_dir)
 2492: 				goto options_rejected;
 2493: 			dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
 2494: 			clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
 2495: 			if (check_filter(elp, FLOG, dir, 1) < 0)
 2496: 				goto options_rejected;
 2497: 		}
 2498: 		/* Clean backup_dir_dels same as for backup_dir */
 2499: 		if (backup_dir_dels) {
 2500: 			if (!*backup_dir_dels)
 2501: 				goto options_rejected;
 2502: 			clean_fname(backup_dir_dels, 1);
 2503: 			if (check_filter(elp, FLOG, backup_dir_dels, 1) < 0)
 2504: 				goto options_rejected;
 2505: 		}
 2506: 	}
 2507: 
 2508: 	if (!backup_suffix)
 2509: 		backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
 2510: 	backup_suffix_len = strlen(backup_suffix);
 2511: 	if (strchr(backup_suffix, '/') != NULL) {
 2512: 		snprintf(err_buf, sizeof err_buf,
 2513: 			"--suffix cannot contain slashes: %s\n",
 2514: 			backup_suffix);
 2515: 		return 0;
 2516: 	}
 2517: 	/* --suffix-dels defaults to --suffix, or empty for a client given an
 2518: 	 * explicit --backup-dir-dels (just as --suffix defaults to empty when
 2519: 	 * a --backup-dir is given).  The second case does not apply to the
 2520: 	 * server for consistency with server_options, which sends --suffix-dels
 2521: 	 * to the server iff it differs from --suffix. */
 2522: 	if (!backup_suffix_dels)
 2523: 		backup_suffix_dels = backup_dir_dels && !am_server ? "" : backup_suffix;
 2524: 	backup_suffix_dels_len = strlen(backup_suffix_dels);
 2525: 	if (strchr(backup_suffix_dels, '/') != NULL) {
 2526: 		snprintf(err_buf, sizeof err_buf,
 2527: 			"--suffix-dels cannot contain slashes: %s\n",
 2528: 			backup_suffix_dels);
 2529: 		return 0;
 2530: 	}
 2531: 	if (backup_dir) {
 2532: 		size_t len;
 2533: 		make_backups = 1; /* --backup-dir implies --backup */
 2534: 		while (*backup_dir == '.' && backup_dir[1] == '/')
 2535: 			backup_dir += 2;
 2536: 		if (*backup_dir == '.' && backup_dir[1] == '\0')
 2537: 			backup_dir++;
 2538: 		len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
 2539: 		if (len > sizeof backup_dir_buf - 128) {
 2540: 			snprintf(err_buf, sizeof err_buf,
 2541: 				"the --backup-dir path is WAY too long.\n");
 2542: 			return 0;
 2543: 		}
 2544: 		backup_dir_len = (int)len;
 2545: 		if (!backup_dir_len) {
 2546: 			backup_dir_len = -1;
 2547: 			backup_dir = NULL;
 2548: 		} else if (backup_dir_buf[backup_dir_len - 1] != '/') {
 2549: 			backup_dir_buf[backup_dir_len++] = '/';
 2550: 			backup_dir_buf[backup_dir_len] = '\0';
 2551: 		}
 2552: 		backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
 2553: 	}
 2554: 	if (backup_dir) {
 2555: 		/* No need for a suffix or a protect rule. */
 2556: 	} else if (!backup_suffix_len && (!am_server || !am_sender)) {
 2557: 		snprintf(err_buf, sizeof err_buf,
 2558: 			"--suffix cannot be empty %s\n", backup_dir_len < 0
 2559: 			? "when --backup-dir is the same as the dest dir"
 2560: 			: "without a --backup-dir");
 2561: 		return 0;
 2562: 	} else if (make_backups && delete_mode && !delete_excluded && !am_server) {
 2563: 		snprintf(backup_dir_buf, sizeof backup_dir_buf,
 2564: 			"P *%s", backup_suffix);
 2565: 		parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
 2566: 	}
 2567: 	if (backup_dir_dels) {
 2568: 		backup_dir_dels_len = strlcpy(backup_dir_dels_buf, backup_dir_dels, sizeof backup_dir_dels_buf);
 2569: 		backup_dir_dels_remainder = sizeof backup_dir_dels_buf - backup_dir_dels_len;
 2570: 		if (backup_dir_dels_remainder < 32) {
 2571: 			snprintf(err_buf, sizeof err_buf,
 2572: 				"the --backup-dir-dels path is WAY too long.\n");
 2573: 			return 0;
 2574: 		}
 2575: 		if (backup_dir_dels_buf[backup_dir_dels_len - 1] != '/') {
 2576: 			backup_dir_dels_buf[backup_dir_dels_len++] = '/';
 2577: 			backup_dir_dels_buf[backup_dir_dels_len] = '\0';
 2578: 		}
 2579: 		if (INFO_GTE(BACKUP, 1) && !am_sender)
 2580: 			rprintf(FINFO, "backup_dir_dels is %s\n", backup_dir_dels_buf);
 2581: 	} else if (backup_dir) {
 2582: 		backup_dir_dels = backup_dir;
 2583: 		backup_dir_dels_len = backup_dir_len;
 2584: 		backup_dir_dels_remainder = backup_dir_remainder;
 2585: 		strlcpy(backup_dir_dels_buf, backup_dir_buf, sizeof backup_dir_buf);
 2586: 	} else if (!backup_suffix_dels_len && (!am_server || !am_sender)) {
 2587: 		snprintf(err_buf, sizeof err_buf,
 2588: 			"--suffix-dels cannot be a null string without --backup-dir-dels\n");
 2589: 		return 0;
 2590: 	} else if (make_backups && delete_mode && !delete_excluded && !am_server) {
 2591: 		snprintf(backup_dir_dels_buf, sizeof backup_dir_dels_buf,
 2592: 			"P *%s", backup_suffix_dels);
 2593: 		parse_filter_str(&filter_list, backup_dir_dels_buf, rule_template(0), 0);
 2594: 	}
 2595: 
 2596: 	if (omit_dir_changes)
 2597: 		omit_dir_times = 1;
 2598: 
 2599: 	if (preserve_times) {
 2600: 		preserve_times = PRESERVE_FILE_TIMES;
 2601: 		if (!omit_dir_times)
 2602: 			preserve_times |= PRESERVE_DIR_TIMES;
 2603: #ifdef CAN_SET_SYMLINK_TIMES
 2604: 		if (!omit_link_times)
 2605: 			preserve_times |= PRESERVE_LINK_TIMES;
 2606: #endif
 2607: 	}
 2608: 
 2609: 	if (make_backups && !backup_dir) {
 2610: 		omit_dir_times = 0; /* Implied, so avoid -O to sender. */
 2611: 		preserve_times &= ~PRESERVE_DIR_TIMES;
 2612: 	}
 2613: 
 2614: 	if (stdout_format) {
 2615: 		if (am_server && log_format_has(stdout_format, 'I'))
 2616: 			stdout_format_has_i = 2;
 2617: 		else if (log_format_has(stdout_format, 'i'))
 2618: 			stdout_format_has_i = itemize_changes | 1;
 2619: 		if (!log_format_has(stdout_format, 'b')
 2620: 		 && !log_format_has(stdout_format, 'c')
 2621: 		 && !log_format_has(stdout_format, 'C'))
 2622: 			log_before_transfer = !am_server;
 2623: 	} else if (itemize_changes) {
 2624: 		stdout_format = "%i %n%L";
 2625: 		stdout_format_has_i = itemize_changes;
 2626: 		log_before_transfer = !am_server;
 2627: 	}
 2628: 
 2629: 	if (do_progress && !am_server) {
 2630: 		if (!log_before_transfer && INFO_EQ(NAME, 0))
 2631: 			parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
 2632: 		parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
 2633: 	}
 2634: 
 2635: 	if (dry_run)
 2636: 		do_xfers = 0;
 2637: 
 2638: 	set_io_timeout(io_timeout);
 2639: 
 2640: 	if (INFO_GTE(NAME, 1) && !stdout_format) {
 2641: 		stdout_format = "%n%L";
 2642: 		log_before_transfer = !am_server;
 2643: 	}
 2644: 	if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
 2645: 		stdout_format_has_o_or_i = 1;
 2646: 
 2647: 	if (logfile_name && !am_daemon) {
 2648: 		if (!logfile_format) {
 2649: 			logfile_format = "%i %n%L";
 2650: 			logfile_format_has_i = logfile_format_has_o_or_i = 1;
 2651: 		} else {
 2652: 			if (log_format_has(logfile_format, 'i'))
 2653: 				logfile_format_has_i = 1;
 2654: 			if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
 2655: 				logfile_format_has_o_or_i = 1;
 2656: 		}
 2657: 		log_init(0);
 2658: 	} else if (!am_daemon)
 2659: 		logfile_format = NULL;
 2660: 
 2661: 	if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
 2662: 		bwlimit = daemon_bwlimit;
 2663: 	if (bwlimit) {
 2664: 		bwlimit_writemax = (size_t)bwlimit * 128;
 2665: 		if (bwlimit_writemax < 512)
 2666: 			bwlimit_writemax = 512;
 2667: 	}
 2668: 
 2669: 	if (append_mode) {
 2670: 		if (whole_file > 0) {
 2671: 			snprintf(err_buf, sizeof err_buf,
 2672: 				 "--append cannot be used with --whole-file\n");
 2673: 			return 0;
 2674: 		}
 2675: 		if (refused_inplace) {
 2676: 			create_refuse_error(refused_inplace);
 2677: 			return 0;
 2678: 		}
 2679: 		inplace = 1;
 2680: 	}
 2681: 
 2682: 	if (write_devices) {
 2683: 		if (refused_inplace) {
 2684: 			create_refuse_error(refused_inplace);
 2685: 			return 0;
 2686: 		}
 2687: 		inplace = 1;
 2688: 	}
 2689: 
 2690: 	if ((delay_updates || detect_renamed) && !partial_dir)
 2691: 		partial_dir = tmp_partialdir;
 2692: 
 2693: 	if (inplace) {
 2694: #ifdef HAVE_FTRUNCATE
 2695: 		if (partial_dir) {
 2696: 			snprintf(err_buf, sizeof err_buf,
 2697: 				 "--%s cannot be used with --%s\n",
 2698: 				 append_mode ? "append" : "inplace",
 2699: 				 detect_renamed ? "detect-renamed" :
 2700: 				 delay_updates ? "delay-updates" : "partial-dir");
 2701: 			return 0;
 2702: 		}
 2703: 		/* --inplace implies --partial for refusal purposes, but we
 2704: 		 * clear the keep_partial flag for internal logic purposes. */
 2705: 		if (refused_partial) {
 2706: 			create_refuse_error(refused_partial);
 2707: 			return 0;
 2708: 		}
 2709: 		keep_partial = 0;
 2710: #else
 2711: 		snprintf(err_buf, sizeof err_buf,
 2712: 			 "--%s is not supported on this %s\n",
 2713: 			 append_mode ? "append" : "inplace",
 2714: 			 am_server ? "server" : "client");
 2715: 		return 0;
 2716: #endif
 2717: 	} else {
 2718: 		if (keep_partial && !partial_dir && !am_server) {
 2719: 			if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
 2720: 				partial_dir = strdup(arg);
 2721: 		}
 2722: 		if (partial_dir) {
 2723: 			if (*partial_dir)
 2724: 				clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
 2725: 			if (!*partial_dir || strcmp(partial_dir, ".") == 0)
 2726: 				partial_dir = NULL;
 2727: 			if (!partial_dir && refused_partial) {
 2728: 				create_refuse_error(refused_partial);
 2729: 				return 0;
 2730: 			}
 2731: 			keep_partial = 1;
 2732: 		}
 2733: 	}
 2734: 
 2735: 	if (source_filter || dest_filter) {
 2736: 		if (whole_file == 0) {
 2737: 			snprintf(err_buf, sizeof err_buf,
 2738: 				 "--no-whole-file cannot be used with --%s-filter\n",
 2739: 				 source_filter ? "source" : "dest");
 2740: 			return 0;
 2741: 		}
 2742: 		whole_file = 1;
 2743: 	}
 2744: 
 2745: 	if (files_from) {
 2746: 		char *h, *p;
 2747: 		int q;
 2748: 		if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
 2749: 			usage(FERROR);
 2750: 			exit_cleanup(RERR_SYNTAX);
 2751: 		}
 2752: 		if (strcmp(files_from, "-") == 0) {
 2753: 			filesfrom_fd = 0;
 2754: 			if (am_server)
 2755: 				filesfrom_host = ""; /* reading from socket */
 2756: 		} else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
 2757: 			if (am_server) {
 2758: 				snprintf(err_buf, sizeof err_buf,
 2759: 					"The --files-from sent to the server cannot specify a host.\n");
 2760: 				return 0;
 2761: 			}
 2762: 			files_from = p;
 2763: 			filesfrom_host = h;
 2764: 			if (strcmp(files_from, "-") == 0) {
 2765: 				snprintf(err_buf, sizeof err_buf,
 2766: 					"Invalid --files-from remote filename\n");
 2767: 				return 0;
 2768: 			}
 2769: 		} else {
 2770: 			if (sanitize_paths)
 2771: 				files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
 2772: 			if (daemon_filter_list.head) {
 2773: 				char *dir;
 2774: 				if (!*files_from)
 2775: 					goto options_rejected;
 2776: 				dir = files_from + (*files_from == '/' ? module_dirlen : 0);
 2777: 				clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
 2778: 				if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
 2779: 					goto options_rejected;
 2780: 			}
 2781: 			filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
 2782: 			if (filesfrom_fd < 0) {
 2783: 				snprintf(err_buf, sizeof err_buf,
 2784: 					"failed to open files-from file %s: %s\n",
 2785: 					files_from, strerror(errno));
 2786: 				return 0;
 2787: 			}
 2788: 		}
 2789: 	}
 2790: 
 2791: 	if (tr_opt) {
 2792: 		if (*tr_opt == '/' && tr_opt[1]) {
 2793: 			snprintf(err_buf, sizeof err_buf,
 2794: 				"Do not start the --tr arg with a slash\n");
 2795: 			return 0;
 2796: 		}
 2797: 		if (*tr_opt && *tr_opt != '/') {
 2798: 			need_unsorted_flist = 1;
 2799: 			arg = strchr(tr_opt, '/');
 2800: 			if (arg && strchr(arg+1, '/')) {
 2801: 				snprintf(err_buf, sizeof err_buf,
 2802: 					"--tr cannot transliterate slashes\n");
 2803: 				return 0;
 2804: 			}
 2805: 		} else
 2806: 			tr_opt = NULL;
 2807: 	}
 2808: 
 2809: 	am_starting_up = 0;
 2810: 
 2811: 	return 1;
 2812: 
 2813:   options_rejected:
 2814: 	snprintf(err_buf, sizeof err_buf,
 2815: 		"Your options have been rejected by the server.\n");
 2816: 	return 0;
 2817: }
 2818: 
 2819: 
 2820: /**
 2821:  * Construct a filtered list of options to pass through from the
 2822:  * client to the server.
 2823:  *
 2824:  * This involves setting options that will tell the server how to
 2825:  * behave, and also filtering out options that are processed only
 2826:  * locally.
 2827:  **/
 2828: void server_options(char **args, int *argc_p)
 2829: {
 2830: 	static char argstr[64];
 2831: 	int ac = *argc_p;
 2832: 	uchar where;
 2833: 	char *arg;
 2834: 	int i, x;
 2835: 
 2836: 	/* This should always remain first on the server's command-line. */
 2837: 	args[ac++] = "--server";
 2838: 
 2839: 	if (!am_sender)
 2840: 		args[ac++] = "--sender";
 2841: 
 2842: 	x = 1;
 2843: 	argstr[0] = '-';
 2844: 
 2845: 	if (protect_args)
 2846: 		argstr[x++] = 's';
 2847: 
 2848: 	for (i = 0; i < verbose; i++)
 2849: 		argstr[x++] = 'v';
 2850: 
 2851: 	if (quiet && msgs2stderr)
 2852: 		argstr[x++] = 'q';
 2853: 	if (make_backups)
 2854: 		argstr[x++] = 'b';
 2855: 	if (update_only)
 2856: 		argstr[x++] = 'u';
 2857: 	if (!do_xfers) /* Note: NOT "dry_run"! */
 2858: 		argstr[x++] = 'n';
 2859: 	if (preserve_links)
 2860: 		argstr[x++] = 'l';
 2861: 	if ((xfer_dirs >= 2 && xfer_dirs < 4)
 2862: 	 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
 2863: 		argstr[x++] = 'd';
 2864: 	if (am_sender) {
 2865: 		if (keep_dirlinks)
 2866: 			argstr[x++] = 'K';
 2867: 		if (prune_empty_dirs)
 2868: 			argstr[x++] = 'm';
 2869: 		if (omit_dir_times)
 2870: 			argstr[x++] = 'O';
 2871: 		if (omit_link_times)
 2872: 			argstr[x++] = 'J';
 2873: 		if (omit_dir_changes == 1)
 2874: 			args[ac++] = "--omit-dir-changes";
 2875: 		if (fuzzy_basis) {
 2876: 			argstr[x++] = 'y';
 2877: 			if (fuzzy_basis > 1)
 2878: 				argstr[x++] = 'y';
 2879: 		}
 2880: 	} else {
 2881: 		if (copy_links)
 2882: 			argstr[x++] = 'L';
 2883: 		if (copy_dirlinks)
 2884: 			argstr[x++] = 'k';
 2885: 	}
 2886: 
 2887: 	if (whole_file > 0)
 2888: 		argstr[x++] = 'W';
 2889: 	/* We don't need to send --no-whole-file, because it's the
 2890: 	 * default for remote transfers, and in any case old versions
 2891: 	 * of rsync will not understand it. */
 2892: 
 2893: 	if (preserve_hard_links) {
 2894: 		argstr[x++] = 'H';
 2895: 		if (preserve_hard_links > 1)
 2896: 			argstr[x++] = 'H';
 2897: 	}
 2898: 	if (preserve_uid)
 2899: 		argstr[x++] = 'o';
 2900: 	if (preserve_gid)
 2901: 		argstr[x++] = 'g';
 2902: 	if (preserve_devices) /* ignore preserve_specials here */
 2903: 		argstr[x++] = 'D';
 2904: 	if (preserve_times)
 2905: 		argstr[x++] = 't';
 2906: 	if (preserve_atimes) {
 2907: 		argstr[x++] = 'U';
 2908: 		if (preserve_atimes > 1)
 2909: 			argstr[x++] = 'U';
 2910: 	}
 2911: #ifdef SUPPORT_CRTIMES
 2912: 	if (preserve_crtimes)
 2913: 		argstr[x++] = 'N';
 2914: #endif
 2915: 	if (preserve_perms)
 2916: 		argstr[x++] = 'p';
 2917: 	else if (preserve_executability && am_sender)
 2918: 		argstr[x++] = 'E';
 2919: #ifdef SUPPORT_ACLS
 2920: 	if (preserve_acls)
 2921: 		argstr[x++] = 'A';
 2922: #endif
 2923: #ifdef SUPPORT_XATTRS
 2924: 	if (preserve_xattrs) {
 2925: 		argstr[x++] = 'X';
 2926: 		if (preserve_xattrs > 1)
 2927: 			argstr[x++] = 'X';
 2928: 	}
 2929: #endif
 2930: 	if (recurse)
 2931: 		argstr[x++] = 'r';
 2932: 	if (always_checksum)
 2933: 		argstr[x++] = 'c';
 2934: 	if (cvs_exclude)
 2935: 		argstr[x++] = 'C';
 2936: 	if (ignore_times)
 2937: 		argstr[x++] = 'I';
 2938: 	if (relative_paths)
 2939: 		argstr[x++] = 'R';
 2940: 	if (one_file_system) {
 2941: 		argstr[x++] = 'x';
 2942: 		if (one_file_system > 1)
 2943: 			argstr[x++] = 'x';
 2944: 	}
 2945: 	if (sparse_files)
 2946: 		argstr[x++] = 'S';
 2947: 	if (do_compression == CPRES_ZLIB)
 2948: 		argstr[x++] = 'z';
 2949: 
 2950: 	set_allow_inc_recurse();
 2951: 
 2952: 	/* We don't really know the actual protocol_version at this point,
 2953: 	 * but checking the pre-negotiated value allows the user to use a
 2954: 	 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
 2955: 	if (protocol_version >= 30) {
 2956: 		/* Use "eFlags" alias so that cull_options doesn't think that these are no-arg option letters. */
 2957: #define eFlags argstr
 2958: 		/* We make use of the -e option to let the server know about
 2959: 		 * any pre-release protocol version && some behavior flags. */
 2960: 		eFlags[x++] = 'e';
 2961: #if SUBPROTOCOL_VERSION != 0
 2962: 		if (protocol_version == PROTOCOL_VERSION) {
 2963: 			x += snprintf(argstr+x, sizeof argstr - x,
 2964: 				      "%d.%d",
 2965: 				      PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
 2966: 		} else
 2967: #endif
 2968: 			eFlags[x++] = '.';
 2969: 		if (allow_inc_recurse)
 2970: 			eFlags[x++] = 'i';
 2971: #ifdef CAN_SET_SYMLINK_TIMES
 2972: 		eFlags[x++] = 'L'; /* symlink time-setting support */
 2973: #endif
 2974: #ifdef ICONV_OPTION
 2975: 		eFlags[x++] = 's'; /* symlink iconv translation support */
 2976: #endif
 2977: 		eFlags[x++] = 'f'; /* flist I/O-error safety support */
 2978: 		eFlags[x++] = 'x'; /* xattr hardlink optimization not desired */
 2979: 		eFlags[x++] = 'C'; /* support checksum seed order fix */
 2980: 		eFlags[x++] = 'I'; /* support inplace_partial behavior */
 2981: 		eFlags[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
 2982: 		eFlags[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */
 2983: 		/* NOTE: Avoid using 'V' -- it was the high bit of a write_byte() that became write_varint(). */
 2984: #undef eFlags
 2985: 	}
 2986: 
 2987: 	if (x >= (int)sizeof argstr) { /* Not possible... */
 2988: 		rprintf(FERROR, "argstr overflow in server_options().\n");
 2989: 		exit_cleanup(RERR_MALLOC);
 2990: 	}
 2991: 
 2992: 	argstr[x] = '\0';
 2993: 
 2994: 	if (x > 1)
 2995: 		args[ac++] = argstr;
 2996: 
 2997: #ifdef ICONV_OPTION
 2998: 	if (iconv_opt) {
 2999: 		char *set = strchr(iconv_opt, ',');
 3000: 		if (set)
 3001: 			set++;
 3002: 		else
 3003: 			set = iconv_opt;
 3004: 		if (asprintf(&arg, "--iconv=%s", set) < 0)
 3005: 			goto oom;
 3006: 		args[ac++] = arg;
 3007: 	}
 3008: #endif
 3009: 
 3010: 	if (protect_args && !local_server) /* unprotected args stop here */
 3011: 		args[ac++] = NULL;
 3012: 
 3013: 	if (list_only > 1)
 3014: 		args[ac++] = "--list-only";
 3015: 
 3016: 	/* This makes sure that the remote rsync can handle deleting with -d
 3017: 	 * sans -r because the --no-r option was added at the same time. */
 3018: 	if (xfer_dirs && !recurse && delete_mode && am_sender)
 3019: 		args[ac++] = "--no-r";
 3020: 
 3021: 	if (preserve_fileflags)
 3022: 		args[ac++] = "--fileflags";
 3023: 
 3024: #ifdef SUPPORT_HFS_COMPRESSION
 3025: 	if (preserve_hfs_compression)
 3026: 		args[ac++] = preserve_hfs_compression == 1 ? "--hfs-compression" : "--protect-decmpfs";
 3027: #endif
 3028: 
 3029: 	if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
 3030: 		if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
 3031: 			goto oom;
 3032: 		args[ac++] = arg;
 3033: 	}
 3034: 
 3035: 	if (preserve_devices) {
 3036: 		/* Note: sending "--devices" would not be backward-compatible. */
 3037: 		if (!preserve_specials)
 3038: 			args[ac++] = "--no-specials"; /* -D is already set. */
 3039: 	} else if (preserve_specials)
 3040: 		args[ac++] = "--specials";
 3041: 
 3042: 	/* The server side doesn't use our log-format, but in certain
 3043: 	 * circumstances they need to know a little about the option. */
 3044: 	if (stdout_format && am_sender) {
 3045: 		/* Use --log-format, not --out-format, for compatibility. */
 3046: 		if (stdout_format_has_i > 1)
 3047: 			args[ac++] = "--log-format=%i%I";
 3048: 		else if (stdout_format_has_i)
 3049: 			args[ac++] = "--log-format=%i";
 3050: 		else if (stdout_format_has_o_or_i)
 3051: 			args[ac++] = "--log-format=%o";
 3052: 		else if (!verbose)
 3053: 			args[ac++] = "--log-format=X";
 3054: 	}
 3055: 
 3056: 	if (msgs2stderr == 1)
 3057: 		args[ac++] = "--msgs2stderr";
 3058: 	else if (msgs2stderr == 0)
 3059: 		args[ac++] = "--no-msgs2stderr";
 3060: 
 3061: 	if (block_size) {
 3062: 		if (asprintf(&arg, "-B%u", (int)block_size) < 0)
 3063: 			goto oom;
 3064: 		args[ac++] = arg;
 3065: 	}
 3066: 
 3067: 	if (sparse_files_block_size) {
 3068: 		if (asprintf(&arg, "--sparse-block=%lu", sparse_files_block_size) < 0)
 3069: 			goto oom;
 3070: 		args[ac++] = arg;
 3071: 	}
 3072: 
 3073: 	if (io_timeout) {
 3074: 		if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
 3075: 			goto oom;
 3076: 		args[ac++] = arg;
 3077: 	}
 3078: 
 3079: 	if (bwlimit) {
 3080: 		if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
 3081: 			goto oom;
 3082: 		args[ac++] = arg;
 3083: 	}
 3084: 
 3085: 	if (backup_dir) {
 3086: 		args[ac++] = "--backup-dir";
 3087: 		args[ac++] = backup_dir;
 3088: 	}
 3089: 	if (backup_dir_dels && backup_dir_dels != backup_dir) {
 3090: 		args[ac++] = "--backup-dir-dels";
 3091: 		args[ac++] = backup_dir_dels;
 3092: 	}
 3093: 
 3094: 	/* Only send --suffix if it specifies a non-default value. */
 3095: 	if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
 3096: 		/* We use the following syntax to avoid weirdness with '~'. */
 3097: 		if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
 3098: 			goto oom;
 3099: 		args[ac++] = arg;
 3100: 	}
 3101: 	/* Only send --suffix-dels if it specifies a value different from the
 3102: 	 * --suffix value, which would normally be used for deletions too. */
 3103: 	if (strcmp(backup_suffix_dels, backup_suffix) != 0) {
 3104: 		/* We use the following syntax to avoid weirdness with '~'. */
 3105: 		if (asprintf(&arg, "--suffix-dels=%s", backup_suffix_dels) < 0)
 3106: 			goto oom;
 3107: 		args[ac++] = arg;
 3108: 	}
 3109: 
 3110: 	if (checksum_choice) {
 3111: 		if (asprintf(&arg, "--checksum-choice=%s", checksum_choice) < 0)
 3112: 			goto oom;
 3113: 		args[ac++] = arg;
 3114: 	}
 3115: 
 3116: 	if (do_compression == CPRES_ZLIBX)
 3117: 		args[ac++] = "--new-compress";
 3118: 	else if (compress_choice && do_compression == CPRES_ZLIB)
 3119: 		args[ac++] = "--old-compress";
 3120: 	else if (compress_choice) {
 3121: 		if (asprintf(&arg, "--compress-choice=%s", compress_choice) < 0)
 3122: 			goto oom;
 3123: 		args[ac++] = arg;
 3124: 	}
 3125: 
 3126: 	if (am_sender) {
 3127: 		/* A remote sender just needs the above -b option.
 3128: 		 * A remote receiver will override that with this option. */
 3129: 		if (make_backups == 1)
 3130: 			args[ac++] = "--backup-deleted";
 3131: 		if (max_delete > 0) {
 3132: 			if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
 3133: 				goto oom;
 3134: 			args[ac++] = arg;
 3135: 		} else if (max_delete == 0)
 3136: 			args[ac++] = "--max-delete=-1";
 3137: 		if (min_size >= 0) {
 3138: 			args[ac++] = "--min-size";
 3139: 			args[ac++] = min_size_arg;
 3140: 		}
 3141: 		if (max_size >= 0) {
 3142: 			args[ac++] = "--max-size";
 3143: 			args[ac++] = max_size_arg;
 3144: 		}
 3145: 		if (delete_before)
 3146: 			args[ac++] = "--delete-before";
 3147: 		else if (delete_during == 2)
 3148: 			args[ac++] = "--delete-delay";
 3149: 		else if (delete_during)
 3150: 			args[ac++] = "--delete-during";
 3151: 		else if (delete_after)
 3152: 			args[ac++] = "--delete-after";
 3153: 		else if (delete_mode && !delete_excluded)
 3154: 			args[ac++] = "--delete";
 3155: 		if (delete_excluded)
 3156: 			args[ac++] = "--delete-excluded";
 3157: 		if (force_delete)
 3158: 			args[ac++] = "--force";
 3159: #ifdef SUPPORT_FORCE_CHANGE
 3160: 		if (force_change) {
 3161: 			if (force_change == ALL_IMMUTABLE)
 3162: 				args[ac++] = "--force-change";
 3163: 			else if (force_change == USR_IMMUTABLE)
 3164: 				args[ac++] = "--force-uchange";
 3165: 			else if (force_change == SYS_IMMUTABLE)
 3166: 				args[ac++] = "--force-schange";
 3167: 		}
 3168: #endif
 3169: 		if (write_batch < 0)
 3170: 			args[ac++] = "--only-write-batch=X";
 3171: 		if (am_root > 1)
 3172: 			args[ac++] = "--super";
 3173: 		if (size_only)
 3174: 			args[ac++] = "--size-only";
 3175: 		if (detect_renamed)
 3176: 			args[ac++] = "--detect-renamed";
 3177: 		if (do_stats)
 3178: 			args[ac++] = "--stats";
 3179: 	} else {
 3180: 		if (skip_compress) {
 3181: 			if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
 3182: 				goto oom;
 3183: 			args[ac++] = arg;
 3184: 		}
 3185: 		if (make_source_backups)
 3186: 			args[ac++] = "--source-backup";
 3187: 	}
 3188: 
 3189: 	if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC) {
 3190: 		args[ac++] = "--max-alloc";
 3191: 		args[ac++] = max_alloc_arg;
 3192: 	}
 3193: 
 3194: 	/* --delete-missing-args needs the cooperation of both sides, but
 3195: 	 * the sender can handle --ignore-missing-args by itself. */
 3196: 	if (missing_args == 2)
 3197: 		args[ac++] = "--delete-missing-args";
 3198: 	else if (missing_args == 1 && !am_sender)
 3199: 		args[ac++] = "--ignore-missing-args";
 3200: 
 3201: 	if (date_only)
 3202: 		args[ac++] = "--date-only";
 3203: 
 3204: 	if (times_only && am_sender)
 3205: 		args[ac++] = "--times-only";
 3206: 
 3207: 	if (source_filter && !am_sender) {
 3208: 		/* Need to single quote the arg to keep the remote shell
 3209: 		 * from splitting it.  FIXME: breaks if command has single quotes. */
 3210: 	        if (asprintf(&arg, "--source-filter='%s'", source_filter) < 0)
 3211: 			goto oom;
 3212: 		args[ac++] = arg;
 3213: 	}
 3214: 
 3215: 	if (dest_filter && am_sender) {
 3216: 		/* Need to single quote the arg to keep the remote shell
 3217: 		 * from splitting it.  FIXME: breaks if command has single quotes. */
 3218: 	        if (asprintf(&arg, "--dest-filter='%s'", dest_filter) < 0)
 3219: 			goto oom;
 3220: 		args[ac++] = arg;
 3221: 	}
 3222: 
 3223: 	if (modify_window_set && am_sender) {
 3224: 		char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
 3225: 		if (asprintf(&arg, fmt, modify_window) < 0)
 3226: 			goto oom;
 3227: 		args[ac++] = arg;
 3228: 	}
 3229: 
 3230: 	if (checksum_seed) {
 3231: 		if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
 3232: 			goto oom;
 3233: 		args[ac++] = arg;
 3234: 	}
 3235: 
 3236: 	if (ignore_case)
 3237: 		args[ac++] = "--ignore-case";
 3238: 
 3239: 	if (partial_dir && am_sender) {
 3240: 		if (partial_dir != tmp_partialdir) {
 3241: 			args[ac++] = "--partial-dir";
 3242: 			args[ac++] = partial_dir;
 3243: 		}
 3244: 		if (delay_updates)
 3245: 			args[ac++] = "--delay-updates";
 3246: 	} else if (keep_partial && am_sender)
 3247: 		args[ac++] = "--partial";
 3248: 
 3249: 	if (ignore_errors)
 3250: 		args[ac++] = "--ignore-errors";
 3251: 
 3252: 	if (copy_unsafe_links)
 3253: 		args[ac++] = "--copy-unsafe-links";
 3254: 
 3255: 	if (safe_symlinks)
 3256: 		args[ac++] = "--safe-links";
 3257: 
 3258: 	if (numeric_ids)
 3259: 		args[ac++] = "--numeric-ids";
 3260: 
 3261: 	if (use_qsort)
 3262: 		args[ac++] = "--use-qsort";
 3263: 
 3264: 	if (am_sender) {
 3265: 		if (usermap) {
 3266: 			if (asprintf(&arg, "--usermap=%s", usermap) < 0)
 3267: 				goto oom;
 3268: 			args[ac++] = arg;
 3269: 		}
 3270: 
 3271: 		if (groupmap) {
 3272: 			if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
 3273: 				goto oom;
 3274: 			args[ac++] = arg;
 3275: 		}
 3276: 
 3277: 		if (ignore_existing)
 3278: 			args[ac++] = "--ignore-existing";
 3279: 
 3280: 		/* Backward compatibility: send --existing, not --ignore-non-existing. */
 3281: 		if (ignore_non_existing)
 3282: 			args[ac++] = "--existing";
 3283: 
 3284: 		if (tmpdir) {
 3285: 			args[ac++] = "--temp-dir";
 3286: 			args[ac++] = tmpdir;
 3287: 		}
 3288: 
 3289: 		if (do_fsync)
 3290: 			args[ac++] = "--fsync";
 3291: 
 3292: 		if (basis_dir[0]) {
 3293: 			/* the server only needs this option if it is not the sender,
 3294: 			 *   and it may be an older version that doesn't know this
 3295: 			 *   option, so don't send it if client is the sender.
 3296: 			 */
 3297: 			for (i = 0; i < basis_dir_cnt; i++) {
 3298: 				args[ac++] = alt_dest_opt(0);
 3299: 				args[ac++] = basis_dir[i];
 3300: 			}
 3301: 		}
 3302: 	}
 3303: 
 3304: 	/* What flags do we need to send to the other side? */
 3305: 	where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
 3306: 	arg = make_output_option(info_words, info_levels, where);
 3307: 	if (arg)
 3308: 		args[ac++] = arg;
 3309: 
 3310: 	if (append_mode) {
 3311: 		if (append_mode > 1)
 3312: 			args[ac++] = "--append";
 3313: 		args[ac++] = "--append";
 3314: 	} else if (inplace)
 3315: 		args[ac++] = "--inplace";
 3316: 
 3317: 	if (link_by_hash_dir && am_sender) {
 3318: 		args[ac++] = "--link-by-hash";
 3319: 		args[ac++] = link_by_hash_dir;
 3320: 		link_by_hash_dir = NULL; /* optimize sending-side checksums */
 3321: 	}
 3322: 
 3323: 	if (files_from && (!am_sender || filesfrom_host)) {
 3324: 		if (filesfrom_host) {
 3325: 			args[ac++] = "--files-from";
 3326: 			args[ac++] = files_from;
 3327: 			if (eol_nulls)
 3328: 				args[ac++] = "--from0";
 3329: 		} else {
 3330: 			args[ac++] = "--files-from=-";
 3331: 			args[ac++] = "--from0";
 3332: 		}
 3333: 		if (!relative_paths)
 3334: 			args[ac++] = "--no-relative";
 3335: 	}
 3336: 	/* It's OK that this checks the upper-bound of the protocol_version. */
 3337: 	if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
 3338: 		args[ac++] = "--no-implied-dirs";
 3339: 
 3340: 	if (tr_opt) {
 3341: 		if (asprintf(&arg, "--tr=%s", tr_opt) < 0)
 3342: 			goto oom;
 3343: 		args[ac++] = arg;
 3344: 	}
 3345: 
 3346: 	if (write_devices && am_sender)
 3347: 		args[ac++] = "--write-devices";
 3348: 
 3349: 	if (remove_source_files == 1)
 3350: 		args[ac++] = "--remove-source-files";
 3351: 	else if (remove_source_files)
 3352: 		args[ac++] = "--remove-sent-files";
 3353: 
 3354: 	if (copy_devices)
 3355: 		args[ac++] = "--copy-devices";
 3356: 
 3357: 	if (preallocate_files && am_sender)
 3358: 		args[ac++] = "--preallocate";
 3359: 
 3360: 	if (open_noatime && preserve_atimes <= 1)
 3361: 		args[ac++] = "--open-noatime";
 3362: 
 3363: 	if (mkpath_dest_arg && am_sender)
 3364: 		args[ac++] = "--mkpath";
 3365: 
 3366: 	if (ac > MAX_SERVER_ARGS) { /* Not possible... */
 3367: 		rprintf(FERROR, "argc overflow in server_options().\n");
 3368: 		exit_cleanup(RERR_MALLOC);
 3369: 	}
 3370: 
 3371: 	if (remote_option_cnt) {
 3372: 		int j;
 3373: 		if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
 3374: 			rprintf(FERROR, "too many remote options specified.\n");
 3375: 			exit_cleanup(RERR_SYNTAX);
 3376: 		}
 3377: 		for (j = 1; j <= remote_option_cnt; j++)
 3378: 			args[ac++] = (char*)remote_options[j];
 3379: 	}
 3380: 
 3381: 	*argc_p = ac;
 3382: 	return;
 3383: 
 3384:     oom:
 3385: 	out_of_memory("server_options");
 3386: }
 3387: 
 3388: /* If str points to a valid hostspec, return allocated memory containing the
 3389:  * [USER@]HOST part of the string, and set the path_start_ptr to the part of
 3390:  * the string after the host part.  Otherwise, return NULL.  If port_ptr is
 3391:  * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
 3392:  * *port_ptr if a port number is found.  Note that IPv6 IPs will have their
 3393:  * (required for parsing) [ and ] chars elided from the returned string. */
 3394: static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
 3395: {
 3396: 	char *s, *host_start = str;
 3397: 	int hostlen = 0, userlen = 0;
 3398: 	char *ret;
 3399: 
 3400: 	for (s = str; ; s++) {
 3401: 		if (!*s) {
 3402: 			/* It is only OK if we run out of string with rsync:// */
 3403: 			if (!port_ptr)
 3404: 				return NULL;
 3405: 			if (!hostlen)
 3406: 				hostlen = s - host_start;
 3407: 			break;
 3408: 		}
 3409: 		if (*s == ':' || *s == '/') {
 3410: 			if (!hostlen)
 3411: 				hostlen = s - host_start;
 3412: 			if (*s++ == '/') {
 3413: 				if (!port_ptr)
 3414: 					return NULL;
 3415: 			} else if (port_ptr) {
 3416: 				*port_ptr = atoi(s);
 3417: 				while (isDigit(s)) s++;
 3418: 				if (*s && *s++ != '/')
 3419: 					return NULL;
 3420: 			}
 3421: 			break;
 3422: 		}
 3423: 		if (*s == '@') {
 3424: 			userlen = s - str + 1;
 3425: 			host_start = s + 1;
 3426: 		} else if (*s == '[') {
 3427: 			if (s != host_start++)
 3428: 				return NULL;
 3429: 			while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
 3430: 			hostlen = s - host_start;
 3431: 			if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
 3432: 				return NULL;
 3433: 		}
 3434: 	}
 3435: 
 3436: 	*path_start_ptr = s;
 3437: 	ret = new_array(char, userlen + hostlen + 1);
 3438: 	if (userlen)
 3439: 		strlcpy(ret, str, userlen + 1);
 3440: 	strlcpy(ret + userlen, host_start, hostlen + 1);
 3441: 	return ret;
 3442: }
 3443: 
 3444: /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
 3445:  * "rsync://HOST:PORT/PATH".  If found, *host_ptr will be set to some allocated
 3446:  * memory with the HOST.  If a daemon-accessing spec was specified, the value
 3447:  * of *port_ptr will contain a non-0 port number, otherwise it will be set to
 3448:  * 0.  The return value is a pointer to the PATH.  Note that the HOST spec can
 3449:  * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
 3450:  * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
 3451: char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
 3452: {
 3453: 	char *path;
 3454: 
 3455: 	if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
 3456: 		*host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
 3457: 		if (*host_ptr) {
 3458: 			if (!*port_ptr)
 3459: 				*port_ptr = -1; /* -1 indicates they want the default */
 3460: 			return path;
 3461: 		}
 3462: 	}
 3463: 
 3464: 	*host_ptr = parse_hostspec(s, &path, NULL);
 3465: 	if (!*host_ptr)
 3466: 		return NULL;
 3467: 
 3468: 	if (*path == ':') {
 3469: 		if (port_ptr && !*port_ptr)
 3470: 			*port_ptr = -1;
 3471: 		return path + 1;
 3472: 	}
 3473: 	if (port_ptr)
 3474: 		*port_ptr = 0;
 3475: 
 3476: 	return path;
 3477: }

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