[rsync/rsync.git] / options.c

/* 
   Copyright (C) Andrew Tridgell 1998
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/* options parsing code */

#include "rsync.h"


int make_backups = 0;
int whole_file = 0;
int copy_links = 0;
int preserve_links = 0;
int preserve_hard_links = 0;
int preserve_perms = 0;
int preserve_devices = 0;
int preserve_uid = 0;
int preserve_gid = 0;
int preserve_times = 0;
int update_only = 0;
int cvs_exclude = 0;
int dry_run=0;
int local_server=0;
int ignore_times=0;
int delete_mode=0;
int delete_excluded=0;
int one_file_system=0;
int remote_version=0;
int sparse_files=0;
int do_compression=0;
int am_root=0;
int orig_umask=0;
int relative_paths=0;
int numeric_ids = 0;
int force_delete = 0;
int io_timeout = 0;
int io_error = 0;
int read_only = 0;
int module_id = -1;
int am_server = 0;
int am_sender=0;
int recurse = 0;
int am_daemon=0;
int do_stats=0;
int do_progress=0;
int keep_partial=0;
int safe_symlinks=0;
int copy_unsafe_links=0;
int block_size=BLOCK_SIZE;
int size_only=0;
int delete_after=0;
int only_existing=0;
int max_delete=0;

char *backup_suffix = BACKUP_SUFFIX;
char *tmpdir = NULL;
char *compare_dest = NULL;
char *config_file = RSYNCD_CONF;
char *shell_cmd = NULL;
char *log_format = NULL;
char *password_file = NULL;
char *rsync_path = RSYNC_NAME;
int rsync_port = RSYNC_PORT;

int verbose = 0;
int quiet = 0;
int always_checksum = 0;
int list_only = 0;

struct in_addr socket_address = {INADDR_ANY};

void usage(int F)
{
  rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
	  VERSION);

  rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");

  rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
  rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC DEST\n");
  rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... DEST\n");
  rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
  rprintf(F,"  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
  rprintf(F,"  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
  rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
  rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
  rprintf(F,"  sources separated by space as long as they have same top-level\n");
  rprintf(F,"\nOptions\n");
  rprintf(F," -v, --verbose               increase verbosity\n");
  rprintf(F," -q, --quiet                 decrease verbosity\n");
  rprintf(F," -c, --checksum              always checksum\n");
  rprintf(F," -a, --archive               archive mode\n");
  rprintf(F," -r, --recursive             recurse into directories\n");
  rprintf(F," -R, --relative              use relative path names\n");
  rprintf(F," -b, --backup                make backups (default %s suffix)\n",BACKUP_SUFFIX);
  rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");  
  rprintf(F," -u, --update                update only (don't overwrite newer files)\n");
  rprintf(F," -l, --links                 preserve soft links\n");
  rprintf(F," -L, --copy-links            treat soft links like regular files\n");
  rprintf(F,"     --copy-unsafe-links     copy links outside the source tree\n");
  rprintf(F,"     --safe-links            ignore links outside the destination tree\n");
  rprintf(F," -H, --hard-links            preserve hard links\n");
  rprintf(F," -p, --perms                 preserve permissions\n");
  rprintf(F," -o, --owner                 preserve owner (root only)\n");
  rprintf(F," -g, --group                 preserve group\n");
  rprintf(F," -D, --devices               preserve devices (root only)\n");
  rprintf(F," -t, --times                 preserve times\n");  
  rprintf(F," -S, --sparse                handle sparse files efficiently\n");
  rprintf(F," -n, --dry-run               show what would have been transferred\n");
  rprintf(F," -W, --whole-file            copy whole files, no incremental checks\n");
  rprintf(F," -x, --one-file-system       don't cross filesystem boundaries\n");
  rprintf(F," -B, --block-size=SIZE       checksum blocking size (default %d)\n",BLOCK_SIZE);  
  rprintf(F," -e, --rsh=COMMAND           specify rsh replacement\n");
  rprintf(F,"     --rsync-path=PATH       specify path to rsync on the remote machine\n");
  rprintf(F," -C, --cvs-exclude           auto ignore files in the same way CVS does\n");
  rprintf(F,"     --existing              only update files that already exist\n");
  rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
  rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
  rprintf(F,"     --delete-after          delete after transferring, not before\n");
  rprintf(F,"     --max-delete=NUM        don't delete more than NUM files\n");
  rprintf(F,"     --partial               keep partially transferred files\n");
  rprintf(F,"     --force                 force deletion of directories even if not empty\n");
  rprintf(F,"     --numeric-ids           don't map uid/gid values by user/group name\n");
  rprintf(F,"     --timeout=TIME          set IO timeout in seconds\n");
  rprintf(F," -I, --ignore-times          don't exclude files that match length and time\n");
  rprintf(F,"     --size-only             only use file size when determining if a file should be transferred\n");
  rprintf(F," -T  --temp-dir=DIR          create temporary files in directory DIR\n");
  rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
  rprintf(F," -P                          equivalent to --partial --progress\n");
  rprintf(F," -z, --compress              compress file data\n");
  rprintf(F,"     --exclude=PATTERN       exclude files matching PATTERN\n");
  rprintf(F,"     --exclude-from=FILE     exclude patterns listed in FILE\n");
  rprintf(F,"     --include=PATTERN       don't exclude files matching PATTERN\n");
  rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
  rprintf(F,"     --version               print version number\n");  
  rprintf(F,"     --daemon                run as a rsync daemon\n");  
  rprintf(F,"     --address               bind to the specified address\n");  
  rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");  
  rprintf(F,"     --port=PORT             specify alternate rsyncd port number\n");
  rprintf(F,"     --stats                 give some file transfer stats\n");  
  rprintf(F,"     --progress              show progress during transfer\n");  
  rprintf(F,"     --log-format=FORMAT     log file transfers using specified format\n");  
  rprintf(F,"     --password-file=FILE    get password from FILE\n");
  rprintf(F," -h, --help                  show this help screen\n");

  rprintf(F,"\n");

  rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
  rprintf(F,"See http://rsync.samba.org/ for updates and bug reports\n");
}

enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
      OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
      OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
      OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
      OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
      OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
      OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE};

static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";

static struct option long_options[] = {
  {"version",     0,     0,    OPT_VERSION},
  {"server",      0,     0,    OPT_SERVER},
  {"sender",      0,     0,    OPT_SENDER},
  {"existing",    0,     0,    OPT_EXISTING},
  {"delete",      0,     0,    OPT_DELETE},
  {"delete-excluded", 0, 0,    OPT_DELETE_EXCLUDED},
  {"force",       0,     0,    OPT_FORCE},
  {"numeric-ids", 0,     0,    OPT_NUMERIC_IDS},
  {"exclude",     1,     0,    OPT_EXCLUDE},
  {"exclude-from",1,     0,    OPT_EXCLUDE_FROM},
  {"include",     1,     0,    OPT_INCLUDE},
  {"include-from",1,     0,    OPT_INCLUDE_FROM},
  {"rsync-path",  1,     0,    OPT_RSYNC_PATH},
  {"password-file", 1,	0,     OPT_PASSWORD_FILE},
  {"one-file-system",0,  0,    'x'},
  {"ignore-times",0,     0,    'I'},
  {"size-only",   0,     0,    OPT_SIZE_ONLY},
  {"help",        0,     0,    'h'},
  {"dry-run",     0,     0,    'n'},
  {"sparse",      0,     0,    'S'},
  {"cvs-exclude", 0,     0,    'C'},
  {"archive",     0,     0,    'a'},
  {"checksum",    0,     0,    'c'},
  {"backup",      0,     0,    'b'},
  {"update",      0,     0,    'u'},
  {"verbose",     0,     0,    'v'},
  {"quiet",       0,     0,    'q'},
  {"recursive",   0,     0,    'r'},
  {"relative",    0,     0,    'R'},
  {"devices",     0,     0,    'D'},
  {"perms",       0,     0,    'p'},
  {"links",       0,     0,    'l'},
  {"copy-links",  0,     0,    'L'},
  {"copy-unsafe-links", 0, 0,  OPT_COPY_UNSAFE_LINKS},
  {"safe-links",  0,     0,    OPT_SAFE_LINKS},
  {"whole-file",  0,     0,    'W'},
  {"hard-links",  0,     0,    'H'},
  {"owner",       0,     0,    'o'},
  {"group",       0,     0,    'g'},
  {"times",       0,     0,    't'},
  {"rsh",         1,     0,    'e'},
  {"suffix",      1,     0,    OPT_SUFFIX},
  {"block-size",  1,     0,    'B'},
  {"timeout",     1,     0,    OPT_TIMEOUT},
  {"temp-dir",    1,     0,    'T'},
  {"compare-dest", 1,    0,    OPT_COMPARE_DEST},
  {"compress",	  0,	 0,    'z'},
  {"daemon",      0,     0,    OPT_DAEMON},
  {"stats",       0,     0,    OPT_STATS},
  {"progress",    0,     0,    OPT_PROGRESS},
  {"partial",     0,     0,    OPT_PARTIAL},
  {"delete-after",0,     0,    OPT_DELETE_AFTER},
  {"config",      1,     0,    OPT_CONFIG},
  {"port",        1,     0,    OPT_PORT},
  {"log-format",  1,     0,    OPT_LOG_FORMAT},
  {"address",     1,     0,    OPT_ADDRESS},
  {"max-delete",  1,     0,    OPT_MAX_DELETE},
  {0,0,0,0}};


static char err_buf[100];

void option_error(void)
{
	if (err_buf[0]) {
		rprintf(FLOG,"%s", err_buf);
		rprintf(FERROR,"%s", err_buf);
	} else {
		rprintf(FLOG,"Error parsing options - unsupported option?\n");
		rprintf(FERROR,"Error parsing options - unsupported option?\n");
	}
	exit_cleanup(RERR_UNSUPPORTED);
}

/* check to see if we should refuse this option */
static int check_refuse_options(char *ref, int opt)
{
	int i, len;
	char *p;
	const char *name;

	for (i=0; long_options[i].name; i++) {
		if (long_options[i].val == opt) break;
	}
	
	if (!long_options[i].name) return 0;

	name = long_options[i].name;
	len = strlen(name);

	while ((p = strstr(ref,name))) {
		if ((p==ref || p[-1]==' ') &&
		    (p[len] == ' ' || p[len] == 0)) {
			slprintf(err_buf,sizeof(err_buf),
				 "The '%s' option is not supported by this server\n", name);
			return 1;
		}
		ref += len;
	}
	return 0;
}


int parse_arguments(int argc, char *argv[], int frommain)
{
	int opt;
	int option_index;
	char *ref = lp_refuse_options(module_id);

	while ((opt = getopt_long(argc, argv, 
				  short_options, long_options, &option_index)) 
	       != -1) {

		if (ref) {
			if (check_refuse_options(ref, opt)) return 0;
		}

		switch (opt) {
		case OPT_VERSION:
			rprintf(FINFO,"rsync version %s  protocol version %d\n\n",
				VERSION,PROTOCOL_VERSION);
			rprintf(FINFO,"Written by Andrew Tridgell and Paul Mackerras\n");
			exit_cleanup(0);
			
		case OPT_SUFFIX:
			backup_suffix = optarg;
			break;
			
		case OPT_RSYNC_PATH:
			rsync_path = optarg;
			break;
	
		case OPT_PASSWORD_FILE:
			password_file =optarg;
			break;		

		case 'I':
			ignore_times = 1;
			break;

		case OPT_SIZE_ONLY:
			size_only = 1;
			break;

		case 'x':
			one_file_system=1;
			break;

		case OPT_DELETE:
			delete_mode = 1;
			break;

		case OPT_EXISTING:
			only_existing = 1;
			break;

		case OPT_DELETE_AFTER:
			delete_after = 1;
			break;

		case OPT_DELETE_EXCLUDED:
			delete_excluded = 1;
			delete_mode = 1;
			break;

		case OPT_FORCE:
			force_delete = 1;
			break;

		case OPT_NUMERIC_IDS:
			numeric_ids = 1;
			break;

		case OPT_EXCLUDE:
			add_exclude(optarg, 0);
			break;

		case OPT_INCLUDE:
			add_exclude(optarg, 1);
			break;

		case OPT_EXCLUDE_FROM:
			add_exclude_file(optarg,1, 0);
			break;

		case OPT_INCLUDE_FROM:
			add_exclude_file(optarg,1, 1);
			break;

		case OPT_COPY_UNSAFE_LINKS:
			copy_unsafe_links=1;
			break;

		case OPT_SAFE_LINKS:
			safe_symlinks=1;
			break;

		case 'h':
			usage(FINFO);
			exit_cleanup(0);

		case 'b':
			make_backups=1;
			break;

		case 'n':
			dry_run=1;
			break;

		case 'S':
			sparse_files=1;
			break;

		case 'C':
			cvs_exclude=1;
			break;

		case 'u':
			update_only=1;
			break;

		case 'l':
			preserve_links=1;
			break;

		case 'L':
			copy_links=1;
			break;

		case 'W':
			whole_file=1;
			break;

		case 'H':
#if SUPPORT_HARD_LINKS
			preserve_hard_links=1;
#else 
			slprintf(err_buf,sizeof(err_buf),"hard links are not supported on this server\n");
			rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
			return 0;
#endif
			break;

		case 'p':
			preserve_perms=1;
			break;

		case 'o':
			preserve_uid=1;
			break;

		case 'g':
			preserve_gid=1;
			break;

		case 'D':
			preserve_devices=1;
			break;

		case 't':
			preserve_times=1;
			break;

		case 'c':
			always_checksum=1;
			break;

		case 'v':
			verbose++;
			break;

		case 'q':
			if (frommain) quiet++;
			break;

		case 'a':
			recurse=1;
#if SUPPORT_LINKS
			preserve_links=1;
#endif
			preserve_perms=1;
			preserve_times=1;
			preserve_gid=1;
			if (am_root) {
				preserve_devices=1;
				preserve_uid=1;
			}
			break;

		case OPT_SERVER:
			am_server = 1;
			break;

		case OPT_SENDER:
			if (!am_server) {
				usage(FERROR);
				exit_cleanup(RERR_SYNTAX);
			}
			am_sender = 1;
			break;

		case 'r':
			recurse = 1;
			break;

		case 'R':
			relative_paths = 1;
			break;

		case 'e':
			shell_cmd = optarg;
			break;

		case 'B':
			block_size = atoi(optarg);
			break;

		case OPT_MAX_DELETE:
			max_delete = atoi(optarg);
			break;

		case OPT_TIMEOUT:
			io_timeout = atoi(optarg);
			break;

		case 'T':
			tmpdir = optarg;
			break;

		case OPT_COMPARE_DEST:
			compare_dest = optarg;
			break;

		case 'z':
			do_compression = 1;
			break;

		case OPT_DAEMON:
			am_daemon = 1;
			break;

		case OPT_STATS:
			do_stats = 1;
			break;

		case OPT_PROGRESS:
			do_progress = 1;
			break;

		case OPT_PARTIAL:
			keep_partial = 1;
			break;

		case 'P':
			do_progress = 1;
			keep_partial = 1;
			break;

		case OPT_CONFIG:
			config_file = optarg;
			break;

		case OPT_PORT:
			rsync_port = atoi(optarg);
			break;

		case OPT_LOG_FORMAT:
			log_format = optarg;
			break;

		case OPT_ADDRESS:
			{
				struct in_addr *ia;
				if ((ia = ip_address(optarg))) {
					socket_address = *ia;
				}
			}
			break;

		default:
			slprintf(err_buf,sizeof(err_buf),"unrecognised option\n");
			return 0;
		}
	}
	return 1;
}


void server_options(char **args,int *argc)
{
	int ac = *argc;
	static char argstr[50];
	static char bsize[30];
	static char iotime[30];
	static char mdelete[30];
	int i, x;

	args[ac++] = "--server";

	if (!am_sender)
		args[ac++] = "--sender";

	x = 1;
	argstr[0] = '-';
	for (i=0;i<verbose;i++)
		argstr[x++] = 'v';
	/* the -q option is intentionally left out */
	if (make_backups)
		argstr[x++] = 'b';
	if (update_only)
		argstr[x++] = 'u';
	if (dry_run)
		argstr[x++] = 'n';
	if (preserve_links)
		argstr[x++] = 'l';
	if (copy_links)
		argstr[x++] = 'L';
	if (whole_file)
		argstr[x++] = 'W';
	if (preserve_hard_links)
		argstr[x++] = 'H';
	if (preserve_uid)
		argstr[x++] = 'o';
	if (preserve_gid)
		argstr[x++] = 'g';
	if (preserve_devices)
		argstr[x++] = 'D';
	if (preserve_times)
		argstr[x++] = 't';
	if (preserve_perms)
		argstr[x++] = 'p';
	if (recurse)
		argstr[x++] = 'r';
	if (always_checksum)
		argstr[x++] = 'c';
	if (cvs_exclude)
		argstr[x++] = 'C';
	if (ignore_times)
		argstr[x++] = 'I';
	if (relative_paths)
		argstr[x++] = 'R';
	if (one_file_system)
		argstr[x++] = 'x';
	if (sparse_files)
		argstr[x++] = 'S';
	if (do_compression)
		argstr[x++] = 'z';
	argstr[x] = 0;

	if (x != 1) args[ac++] = argstr;

	if (block_size != BLOCK_SIZE) {
		slprintf(bsize,sizeof(bsize),"-B%d",block_size);
		args[ac++] = bsize;
	}    

	if (max_delete && am_sender) {
		slprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
		args[ac++] = mdelete;
	}    

	if (io_timeout) {
		slprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
		args[ac++] = iotime;
	}    

	if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
		args[ac++] = "--suffix";
		args[ac++] = backup_suffix;
	}

	if (delete_mode && !delete_excluded)
		args[ac++] = "--delete";

	if (delete_excluded)
		args[ac++] = "--delete-excluded";

	if (size_only)
		args[ac++] = "--size-only";

	if (keep_partial)
		args[ac++] = "--partial";

	if (force_delete)
		args[ac++] = "--force";

	if (delete_after)
		args[ac++] = "--delete-after";

	if (copy_unsafe_links)
		args[ac++] = "--copy-unsafe-links";

	if (safe_symlinks)
		args[ac++] = "--safe-links";

	if (numeric_ids)
		args[ac++] = "--numeric-ids";

	if (only_existing && am_sender)
		args[ac++] = "--existing";

	if (tmpdir) {
		args[ac++] = "--temp-dir";
		args[ac++] = tmpdir;
	}

	if (compare_dest && am_sender) {
		/* the server only needs this option if it is not the sender,
		 *   and it may be an older version that doesn't know this
		 *   option, so don't send it if client is the sender.
		 */
		args[ac++] = "--compare-dest";
		args[ac++] = compare_dest;
	}


	*argc = ac;
}
Commit	Line	Data
7a6421fa AT	1	/*
	2	Copyright (C) Andrew Tridgell 1998
	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 2 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software
	16	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	17	*/
	18
	19	/* options parsing code */
	20
	21	#include "rsync.h"
	22
	23
	24	int make_backups = 0;
	25	int whole_file = 0;
	26	int copy_links = 0;
	27	int preserve_links = 0;
	28	int preserve_hard_links = 0;
	29	int preserve_perms = 0;
	30	int preserve_devices = 0;
	31	int preserve_uid = 0;
	32	int preserve_gid = 0;
	33	int preserve_times = 0;
	34	int update_only = 0;
	35	int cvs_exclude = 0;
	36	int dry_run=0;
	37	int local_server=0;
	38	int ignore_times=0;
	39	int delete_mode=0;
b33b791e	40	int delete_excluded=0;
7a6421fa AT	41	int one_file_system=0;
	42	int remote_version=0;
	43	int sparse_files=0;
	44	int do_compression=0;
	45	int am_root=0;
	46	int orig_umask=0;
	47	int relative_paths=0;
	48	int numeric_ids = 0;
	49	int force_delete = 0;
	50	int io_timeout = 0;
	51	int io_error = 0;
	52	int read_only = 0;
	53	int module_id = -1;
	54	int am_server = 0;
	55	int am_sender=0;
	56	int recurse = 0;
	57	int am_daemon=0;
a800434a	58	int do_stats=0;
eb86d661	59	int do_progress=0;
c95da96a	60	int keep_partial=0;
d853783f	61	int safe_symlinks=0;
b5313607	62	int copy_unsafe_links=0;
7a6421fa	63	int block_size=BLOCK_SIZE;
f83f0548	64	int size_only=0;
57df171b	65	int delete_after=0;
1347d512	66	int only_existing=0;
0b73ca12	67	int max_delete=0;
7a6421fa AT	68
	69	char *backup_suffix = BACKUP_SUFFIX;
	70	char *tmpdir = NULL;
375a4556	71	char *compare_dest = NULL;
7a6421fa AT	72	char *config_file = RSYNCD_CONF;
7a6421fa AT	73	char *shell_cmd = NULL;
b6062654	74	char *log_format = NULL;
65575e96	75	char *password_file = NULL;
7a6421fa AT	76	char *rsync_path = RSYNC_NAME;
	77	int rsync_port = RSYNC_PORT;
	78
	79	int verbose = 0;
b86f0cef	80	int quiet = 0;
7a6421fa	81	int always_checksum = 0;
f7632fc6	82	int list_only = 0;
7a6421fa	83
5c9730a4 AT	84	struct in_addr socket_address = {INADDR_ANY};
5c9730a4 AT	85
7a6421fa AT	86	void usage(int F)
	87	{
	88	rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
	89	VERSION);
704f908e AT	90
	91	rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");
	92
9ef53907	93	rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
704f908e	94	rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC DEST\n");
9ef53907	95	rprintf(F," or rsync [OPTION]... SRC [SRC]... DEST\n");
14d43f1f	96	rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
9ef53907	97	rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
14d43f1f	98	rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
9ef53907 DD	99	rprintf(F,"SRC on single-colon remote HOST will be expanded by remote shell\n");
	100	rprintf(F,"SRC on server remote HOST may contain shell wildcards or multiple\n");
	101	rprintf(F," sources separated by space as long as they have same top-level\n");
704f908e AT	102	rprintf(F,"\nOptions\n");
704f908e AT	103	rprintf(F," -v, --verbose increase verbosity\n");
b86f0cef	104	rprintf(F," -q, --quiet decrease verbosity\n");
704f908e AT	105	rprintf(F," -c, --checksum always checksum\n");
	106	rprintf(F," -a, --archive archive mode\n");
	107	rprintf(F," -r, --recursive recurse into directories\n");
	108	rprintf(F," -R, --relative use relative path names\n");
9ef53907 DD	109	rprintf(F," -b, --backup make backups (default %s suffix)\n",BACKUP_SUFFIX);
9ef53907 DD	110	rprintf(F," --suffix=SUFFIX override backup suffix\n");
704f908e AT	111	rprintf(F," -u, --update update only (don't overwrite newer files)\n");
	112	rprintf(F," -l, --links preserve soft links\n");
	113	rprintf(F," -L, --copy-links treat soft links like regular files\n");
b5313607	114	rprintf(F," --copy-unsafe-links copy links outside the source tree\n");
d853783f	115	rprintf(F," --safe-links ignore links outside the destination tree\n");
704f908e AT	116	rprintf(F," -H, --hard-links preserve hard links\n");
	117	rprintf(F," -p, --perms preserve permissions\n");
	118	rprintf(F," -o, --owner preserve owner (root only)\n");
	119	rprintf(F," -g, --group preserve group\n");
	120	rprintf(F," -D, --devices preserve devices (root only)\n");
	121	rprintf(F," -t, --times preserve times\n");
	122	rprintf(F," -S, --sparse handle sparse files efficiently\n");
	123	rprintf(F," -n, --dry-run show what would have been transferred\n");
	124	rprintf(F," -W, --whole-file copy whole files, no incremental checks\n");
	125	rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
9ef53907	126	rprintf(F," -B, --block-size=SIZE checksum blocking size (default %d)\n",BLOCK_SIZE);
704f908e AT	127	rprintf(F," -e, --rsh=COMMAND specify rsh replacement\n");
	128	rprintf(F," --rsync-path=PATH specify path to rsync on the remote machine\n");
	129	rprintf(F," -C, --cvs-exclude auto ignore files in the same way CVS does\n");
1347d512	130	rprintf(F," --existing only update files that already exist\n");
704f908e	131	rprintf(F," --delete delete files that don't exist on the sending side\n");
b33b791e	132	rprintf(F," --delete-excluded also delete excluded files on the receiving side\n");
57df171b	133	rprintf(F," --delete-after delete after transferring, not before\n");
0b73ca12	134	rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
c95da96a	135	rprintf(F," --partial keep partially transferred files\n");
704f908e AT	136	rprintf(F," --force force deletion of directories even if not empty\n");
	137	rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
	138	rprintf(F," --timeout=TIME set IO timeout in seconds\n");
	139	rprintf(F," -I, --ignore-times don't exclude files that match length and time\n");
f83f0548	140	rprintf(F," --size-only only use file size when determining if a file should be transferred\n");
704f908e	141	rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n");
375a4556	142	rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
d9fcc198	143	rprintf(F," -P equivalent to --partial --progress\n");
704f908e	144	rprintf(F," -z, --compress compress file data\n");
2acf81eb	145	rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
858fb9eb	146	rprintf(F," --exclude-from=FILE exclude patterns listed in FILE\n");
2acf81eb	147	rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
858fb9eb	148	rprintf(F," --include-from=FILE don't exclude patterns listed in FILE\n");
704f908e AT	149	rprintf(F," --version print version number\n");
704f908e AT	150	rprintf(F," --daemon run as a rsync daemon\n");
5c9730a4	151	rprintf(F," --address bind to the specified address\n");
704f908e AT	152	rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
	153	rprintf(F," --port=PORT specify alternate rsyncd port number\n");
	154	rprintf(F," --stats give some file transfer stats\n");
eb86d661	155	rprintf(F," --progress show progress during transfer\n");
b6062654	156	rprintf(F," --log-format=FORMAT log file transfers using specified format\n");
65575e96	157	rprintf(F," --password-file=FILE get password from FILE\n");
704f908e	158	rprintf(F," -h, --help show this help screen\n");
7a6421fa AT	159
7a6421fa AT	160	rprintf(F,"\n");
b72f24c7 AT	161
b72f24c7 AT	162	rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
9e3c856a	163	rprintf(F,"See http://rsync.samba.org/ for updates and bug reports\n");
7a6421fa AT	164	}
7a6421fa AT	165
b33b791e DD	166	enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
	167	OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
	168	OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
d853783f	169	OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
b5313607	170	OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
57df171b	171	OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
0b73ca12	172	OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE};
7a6421fa	173
d9fcc198	174	static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";
7a6421fa AT	175
	176	static struct option long_options[] = {
	177	{"version", 0, 0, OPT_VERSION},
	178	{"server", 0, 0, OPT_SERVER},
	179	{"sender", 0, 0, OPT_SENDER},
1347d512	180	{"existing", 0, 0, OPT_EXISTING},
7a6421fa	181	{"delete", 0, 0, OPT_DELETE},
b33b791e	182	{"delete-excluded", 0, 0, OPT_DELETE_EXCLUDED},
7a6421fa AT	183	{"force", 0, 0, OPT_FORCE},
	184	{"numeric-ids", 0, 0, OPT_NUMERIC_IDS},
	185	{"exclude", 1, 0, OPT_EXCLUDE},
	186	{"exclude-from",1, 0, OPT_EXCLUDE_FROM},
2b6b4d53 AT	187	{"include", 1, 0, OPT_INCLUDE},
2b6b4d53 AT	188	{"include-from",1, 0, OPT_INCLUDE_FROM},
7a6421fa	189	{"rsync-path", 1, 0, OPT_RSYNC_PATH},
65575e96	190	{"password-file", 1, 0, OPT_PASSWORD_FILE},
7a6421fa AT	191	{"one-file-system",0, 0, 'x'},
7a6421fa AT	192	{"ignore-times",0, 0, 'I'},
f83f0548	193	{"size-only", 0, 0, OPT_SIZE_ONLY},
7a6421fa AT	194	{"help", 0, 0, 'h'},
	195	{"dry-run", 0, 0, 'n'},
	196	{"sparse", 0, 0, 'S'},
	197	{"cvs-exclude", 0, 0, 'C'},
	198	{"archive", 0, 0, 'a'},
	199	{"checksum", 0, 0, 'c'},
	200	{"backup", 0, 0, 'b'},
	201	{"update", 0, 0, 'u'},
	202	{"verbose", 0, 0, 'v'},
b86f0cef	203	{"quiet", 0, 0, 'q'},
7a6421fa AT	204	{"recursive", 0, 0, 'r'},
	205	{"relative", 0, 0, 'R'},
	206	{"devices", 0, 0, 'D'},
	207	{"perms", 0, 0, 'p'},
	208	{"links", 0, 0, 'l'},
	209	{"copy-links", 0, 0, 'L'},
b5313607	210	{"copy-unsafe-links", 0, 0, OPT_COPY_UNSAFE_LINKS},
d853783f	211	{"safe-links", 0, 0, OPT_SAFE_LINKS},
7a6421fa AT	212	{"whole-file", 0, 0, 'W'},
	213	{"hard-links", 0, 0, 'H'},
	214	{"owner", 0, 0, 'o'},
	215	{"group", 0, 0, 'g'},
	216	{"times", 0, 0, 't'},
	217	{"rsh", 1, 0, 'e'},
	218	{"suffix", 1, 0, OPT_SUFFIX},
	219	{"block-size", 1, 0, 'B'},
	220	{"timeout", 1, 0, OPT_TIMEOUT},
	221	{"temp-dir", 1, 0, 'T'},
375a4556	222	{"compare-dest", 1, 0, OPT_COMPARE_DEST},
7a6421fa AT	223	{"compress", 0, 0, 'z'},
7a6421fa AT	224	{"daemon", 0, 0, OPT_DAEMON},
a800434a	225	{"stats", 0, 0, OPT_STATS},
eb86d661	226	{"progress", 0, 0, OPT_PROGRESS},
c95da96a	227	{"partial", 0, 0, OPT_PARTIAL},
57df171b	228	{"delete-after",0, 0, OPT_DELETE_AFTER},
7a6421fa AT	229	{"config", 1, 0, OPT_CONFIG},
7a6421fa AT	230	{"port", 1, 0, OPT_PORT},
b6062654	231	{"log-format", 1, 0, OPT_LOG_FORMAT},
5c9730a4	232	{"address", 1, 0, OPT_ADDRESS},
0b73ca12	233	{"max-delete", 1, 0, OPT_MAX_DELETE},
7a6421fa AT	234	{0,0,0,0}};
7a6421fa AT	235
b11ed3b1	236
cd8185f2 AT	237	static char err_buf[100];
	238
	239	void option_error(void)
	240	{
	241	if (err_buf[0]) {
	242	rprintf(FLOG,"%s", err_buf);
	243	rprintf(FERROR,"%s", err_buf);
	244	} else {
	245	rprintf(FLOG,"Error parsing options - unsupported option?\n");
	246	rprintf(FERROR,"Error parsing options - unsupported option?\n");
	247	}
	248	exit_cleanup(RERR_UNSUPPORTED);
	249	}
	250
	251	/* check to see if we should refuse this option */
	252	static int check_refuse_options(char *ref, int opt)
	253	{
	254	int i, len;
	255	char *p;
	256	const char *name;
	257
	258	for (i=0; long_options[i].name; i++) {
	259	if (long_options[i].val == opt) break;
	260	}
	261
	262	if (!long_options[i].name) return 0;
	263
	264	name = long_options[i].name;
	265	len = strlen(name);
	266
	267	while ((p = strstr(ref,name))) {
055af776 AT	268	if ((p==ref \|\| p[-1]==' ') &&
055af776 AT	269	(p[len] == ' ' \|\| p[len] == 0)) {
cd8185f2 AT	270	slprintf(err_buf,sizeof(err_buf),
	271	"The '%s' option is not supported by this server\n", name);
	272	return 1;
	273	}
	274	ref += len;
	275	}
	276	return 0;
	277	}
	278
	279
b86f0cef	280	int parse_arguments(int argc, char *argv[], int frommain)
7a6421fa	281	{
d853783f AT	282	int opt;
d853783f AT	283	int option_index;
cd8185f2	284	char *ref = lp_refuse_options(module_id);
d853783f AT	285
	286	while ((opt = getopt_long(argc, argv,
	287	short_options, long_options, &option_index))
	288	!= -1) {
cd8185f2 AT	289
	290	if (ref) {
	291	if (check_refuse_options(ref, opt)) return 0;
	292	}
	293
d853783f AT	294	switch (opt) {
	295	case OPT_VERSION:
	296	rprintf(FINFO,"rsync version %s protocol version %d\n\n",
	297	VERSION,PROTOCOL_VERSION);
	298	rprintf(FINFO,"Written by Andrew Tridgell and Paul Mackerras\n");
	299	exit_cleanup(0);
	300
	301	case OPT_SUFFIX:
	302	backup_suffix = optarg;
	303	break;
	304
	305	case OPT_RSYNC_PATH:
	306	rsync_path = optarg;
	307	break;
65575e96 AT	308
	309	case OPT_PASSWORD_FILE:
	310	password_file =optarg;
	311	break;
f83f0548	312
d853783f AT	313	case 'I':
	314	ignore_times = 1;
	315	break;
	316
f83f0548 AT	317	case OPT_SIZE_ONLY:
	318	size_only = 1;
	319	break;
	320
d853783f AT	321	case 'x':
	322	one_file_system=1;
	323	break;
	324
	325	case OPT_DELETE:
	326	delete_mode = 1;
	327	break;
	328
1347d512 AT	329	case OPT_EXISTING:
	330	only_existing = 1;
	331	break;
	332
57df171b AT	333	case OPT_DELETE_AFTER:
	334	delete_after = 1;
	335	break;
	336
b33b791e DD	337	case OPT_DELETE_EXCLUDED:
	338	delete_excluded = 1;
	339	delete_mode = 1;
	340	break;
	341
d853783f AT	342	case OPT_FORCE:
	343	force_delete = 1;
	344	break;
	345
	346	case OPT_NUMERIC_IDS:
	347	numeric_ids = 1;
	348	break;
	349
	350	case OPT_EXCLUDE:
	351	add_exclude(optarg, 0);
	352	break;
	353
	354	case OPT_INCLUDE:
	355	add_exclude(optarg, 1);
	356	break;
	357
	358	case OPT_EXCLUDE_FROM:
	359	add_exclude_file(optarg,1, 0);
	360	break;
	361
	362	case OPT_INCLUDE_FROM:
	363	add_exclude_file(optarg,1, 1);
	364	break;
	365
b5313607 DD	366	case OPT_COPY_UNSAFE_LINKS:
	367	copy_unsafe_links=1;
	368	break;
	369
d853783f AT	370	case OPT_SAFE_LINKS:
	371	safe_symlinks=1;
	372	break;
	373
	374	case 'h':
	375	usage(FINFO);
	376	exit_cleanup(0);
	377
	378	case 'b':
	379	make_backups=1;
	380	break;
	381
	382	case 'n':
	383	dry_run=1;
	384	break;
	385
	386	case 'S':
	387	sparse_files=1;
	388	break;
	389
	390	case 'C':
	391	cvs_exclude=1;
	392	break;
	393
	394	case 'u':
	395	update_only=1;
	396	break;
	397
	398	case 'l':
	399	preserve_links=1;
	400	break;
	401
	402	case 'L':
	403	copy_links=1;
	404	break;
	405
	406	case 'W':
	407	whole_file=1;
	408	break;
	409
	410	case 'H':
7a6421fa	411	#if SUPPORT_HARD_LINKS
d853783f	412	preserve_hard_links=1;
7a6421fa	413	#else
cd8185f2	414	slprintf(err_buf,sizeof(err_buf),"hard links are not supported on this server\n");
d853783f	415	rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
b11ed3b1	416	return 0;
7a6421fa	417	#endif
d853783f	418	break;
7a6421fa	419
d853783f AT	420	case 'p':
	421	preserve_perms=1;
	422	break;
7a6421fa	423
d853783f AT	424	case 'o':
	425	preserve_uid=1;
	426	break;
7a6421fa	427
d853783f AT	428	case 'g':
	429	preserve_gid=1;
	430	break;
7a6421fa	431
d853783f AT	432	case 'D':
	433	preserve_devices=1;
	434	break;
7a6421fa	435
d853783f AT	436	case 't':
	437	preserve_times=1;
	438	break;
7a6421fa	439
d853783f AT	440	case 'c':
	441	always_checksum=1;
	442	break;
7a6421fa	443
d853783f AT	444	case 'v':
	445	verbose++;
	446	break;
7a6421fa	447
b86f0cef DD	448	case 'q':
	449	if (frommain) quiet++;
	450	break;
	451
d853783f AT	452	case 'a':
d853783f AT	453	recurse=1;
7a6421fa	454	#if SUPPORT_LINKS
d853783f	455	preserve_links=1;
7a6421fa	456	#endif
d853783f AT	457	preserve_perms=1;
	458	preserve_times=1;
	459	preserve_gid=1;
	460	if (am_root) {
	461	preserve_devices=1;
	462	preserve_uid=1;
	463	}
	464	break;
	465
	466	case OPT_SERVER:
	467	am_server = 1;
	468	break;
	469
	470	case OPT_SENDER:
	471	if (!am_server) {
	472	usage(FERROR);
65417579	473	exit_cleanup(RERR_SYNTAX);
d853783f AT	474	}
	475	am_sender = 1;
	476	break;
	477
	478	case 'r':
	479	recurse = 1;
	480	break;
	481
	482	case 'R':
	483	relative_paths = 1;
	484	break;
	485
	486	case 'e':
	487	shell_cmd = optarg;
	488	break;
	489
	490	case 'B':
	491	block_size = atoi(optarg);
	492	break;
	493
0b73ca12 AT	494	case OPT_MAX_DELETE:
	495	max_delete = atoi(optarg);
	496	break;
	497
d853783f AT	498	case OPT_TIMEOUT:
	499	io_timeout = atoi(optarg);
	500	break;
	501
	502	case 'T':
	503	tmpdir = optarg;
	504	break;
	505
375a4556 DD	506	case OPT_COMPARE_DEST:
	507	compare_dest = optarg;
	508	break;
	509
d853783f AT	510	case 'z':
	511	do_compression = 1;
	512	break;
	513
	514	case OPT_DAEMON:
	515	am_daemon = 1;
	516	break;
	517
	518	case OPT_STATS:
	519	do_stats = 1;
	520	break;
	521
	522	case OPT_PROGRESS:
	523	do_progress = 1;
	524	break;
	525
	526	case OPT_PARTIAL:
	527	keep_partial = 1;
	528	break;
	529
d9fcc198 AT	530	case 'P':
	531	do_progress = 1;
	532	keep_partial = 1;
	533	break;
	534
d853783f AT	535	case OPT_CONFIG:
	536	config_file = optarg;
	537	break;
	538
	539	case OPT_PORT:
	540	rsync_port = atoi(optarg);
	541	break;
	542
b6062654 AT	543	case OPT_LOG_FORMAT:
	544	log_format = optarg;
	545	break;
	546
5c9730a4 AT	547	case OPT_ADDRESS:
	548	{
	549	struct in_addr *ia;
	550	if ((ia = ip_address(optarg))) {
	551	socket_address = *ia;
	552	}
	553	}
	554	break;
	555
d853783f	556	default:
cd8185f2	557	slprintf(err_buf,sizeof(err_buf),"unrecognised option\n");
b11ed3b1	558	return 0;
d853783f	559	}
7a6421fa	560	}
b11ed3b1	561	return 1;
7a6421fa AT	562	}
	563
	564
	565	void server_options(char *args,int argc)
	566	{
d853783f AT	567	int ac = *argc;
	568	static char argstr[50];
	569	static char bsize[30];
	570	static char iotime[30];
0b73ca12	571	static char mdelete[30];
d853783f AT	572	int i, x;
	573
	574	args[ac++] = "--server";
	575
	576	if (!am_sender)
	577	args[ac++] = "--sender";
	578
	579	x = 1;
	580	argstr[0] = '-';
	581	for (i=0;i<verbose;i++)
	582	argstr[x++] = 'v';
b86f0cef	583	/* the -q option is intentionally left out */
d853783f AT	584	if (make_backups)
	585	argstr[x++] = 'b';
	586	if (update_only)
	587	argstr[x++] = 'u';
	588	if (dry_run)
	589	argstr[x++] = 'n';
	590	if (preserve_links)
	591	argstr[x++] = 'l';
	592	if (copy_links)
	593	argstr[x++] = 'L';
	594	if (whole_file)
	595	argstr[x++] = 'W';
	596	if (preserve_hard_links)
	597	argstr[x++] = 'H';
	598	if (preserve_uid)
	599	argstr[x++] = 'o';
	600	if (preserve_gid)
	601	argstr[x++] = 'g';
	602	if (preserve_devices)
	603	argstr[x++] = 'D';
	604	if (preserve_times)
	605	argstr[x++] = 't';
	606	if (preserve_perms)
	607	argstr[x++] = 'p';
	608	if (recurse)
	609	argstr[x++] = 'r';
	610	if (always_checksum)
	611	argstr[x++] = 'c';
	612	if (cvs_exclude)
	613	argstr[x++] = 'C';
	614	if (ignore_times)
	615	argstr[x++] = 'I';
	616	if (relative_paths)
	617	argstr[x++] = 'R';
	618	if (one_file_system)
	619	argstr[x++] = 'x';
	620	if (sparse_files)
	621	argstr[x++] = 'S';
	622	if (do_compression)
	623	argstr[x++] = 'z';
	624	argstr[x] = 0;
	625
	626	if (x != 1) args[ac++] = argstr;
	627
	628	if (block_size != BLOCK_SIZE) {
0b73ca12	629	slprintf(bsize,sizeof(bsize),"-B%d",block_size);
d853783f AT	630	args[ac++] = bsize;
	631	}
	632
0b73ca12 AT	633	if (max_delete && am_sender) {
	634	slprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
	635	args[ac++] = mdelete;
	636	}
	637
d853783f	638	if (io_timeout) {
0b73ca12	639	slprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
d853783f AT	640	args[ac++] = iotime;
	641	}
	642
	643	if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
	644	args[ac++] = "--suffix";
	645	args[ac++] = backup_suffix;
	646	}
	647
b33b791e	648	if (delete_mode && !delete_excluded)
d853783f AT	649	args[ac++] = "--delete";
d853783f AT	650
b33b791e DD	651	if (delete_excluded)
	652	args[ac++] = "--delete-excluded";
	653
f83f0548 AT	654	if (size_only)
	655	args[ac++] = "--size-only";
	656
d853783f AT	657	if (keep_partial)
	658	args[ac++] = "--partial";
	659
	660	if (force_delete)
	661	args[ac++] = "--force";
	662
57df171b AT	663	if (delete_after)
	664	args[ac++] = "--delete-after";
	665
b5313607 DD	666	if (copy_unsafe_links)
	667	args[ac++] = "--copy-unsafe-links";
	668
d853783f AT	669	if (safe_symlinks)
	670	args[ac++] = "--safe-links";
	671
	672	if (numeric_ids)
	673	args[ac++] = "--numeric-ids";
	674
0b73ca12	675	if (only_existing && am_sender)
1347d512 AT	676	args[ac++] = "--existing";
1347d512 AT	677
d853783f AT	678	if (tmpdir) {
	679	args[ac++] = "--temp-dir";
	680	args[ac++] = tmpdir;
	681	}
	682
375a4556 DD	683	if (compare_dest && am_sender) {
	684	/* the server only needs this option if it is not the sender,
	685	* and it may be an older version that doesn't know this
	686	* option, so don't send it if client is the sender.
	687	*/
	688	args[ac++] = "--compare-dest";
	689	args[ac++] = compare_dest;
	690	}
	691
	692
d853783f	693	*argc = ac;
7a6421fa AT	694	}
7a6421fa AT	695