X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/7a6421fa764dd0f609e2a5024ec8b3bc577575a1..654175798bdbdd6403e10c8fa74e8586b3612ea1:/options.c

diff --git a/options.c b/options.c
index 3e2b7147..9d7ad92c 100644
--- a/options.c
+++ b/options.c
@@ -54,74 +54,101 @@ int am_server = 0;
 int am_sender=0;
 int recurse = 0;
 int am_daemon=0;
+int am_client=0;
+int do_stats=0;
+int do_progress=0;
+int keep_partial=0;
+int safe_symlinks=0;
 
 int block_size=BLOCK_SIZE;
 
 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 *rsync_path = RSYNC_NAME;
 int rsync_port = RSYNC_PORT;
 
 int verbose = 0;
 int always_checksum = 0;
-
+int list_only = 0;
 
 void usage(int F)
 {
   rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
 	  VERSION);
-  rprintf(F,"Usage:\t%s [options] src user@host:dest\nOR",RSYNC_NAME);
-  rprintf(F,"\t%s [options] user@host:src dest\n\n",RSYNC_NAME);
-  rprintf(F,"Options:\n");
-  rprintf(F,"-v, --verbose            increase verbosity\n");
-  rprintf(F,"-c, --checksum           always checksum\n");
-  rprintf(F,"-a, --archive            archive mode (same as -rlptDog)\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 ~ extension)\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,"-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\n");  
-  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,"    --delete             delete files that don't exist on the sending side\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,"-T  --temp-dir DIR       create temporary files in directory DIR\n");
-  rprintf(F,"-z, --compress           compress file data\n");
-  rprintf(F,"    --exclude FILE       exclude file FILE\n");
-  rprintf(F,"    --exclude-from FILE  exclude files listed in FILE\n");
-  rprintf(F,"    --suffix SUFFIX      override backup suffix\n");  
-  rprintf(F,"    --version            print version number\n");  
-  rprintf(F,"    --daemon             run as a rsync daemon\n");  
-  rprintf(F,"    --config FILE        specify alternate rsyncd.conf file\n");  
-  rprintf(F,"    --port PORT          specify alternate rsyncd port number\n");  
+
+  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 [USER@]HOST:DEST\n");
+  rprintf(F,"  or   rsync [OPTION]... [USER@]HOST:SRC DEST\n");
+  rprintf(F,"  or   rsync [OPTION]... SRC DEST\n");
+  rprintf(F,"  or   rsync [OPTION]... [USER@]HOST::SRC DEST\n");
+  rprintf(F,"  or   rsync [OPTION]... SRC [USER@]HOST::DEST\n");
+  rprintf(F,"\nOptions\n");
+  rprintf(F," -v, --verbose               increase 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 ~ extension)\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,"     --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\n");  
+  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,"     --delete                delete files that don't exist on the sending side\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," -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," -z, --compress              compress file data\n");
+  rprintf(F,"     --exclude=PATTERN       exclude file FILE\n");
+  rprintf(F,"     --exclude-from=FILE     exclude patterns listed in FILE\n");
+  rprintf(F,"     --include=PATTERN       don't exclude file FILE\n");
+  rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
+  rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");  
+  rprintf(F,"     --version               print version number\n");  
+  rprintf(F,"     --daemon                run as a rsync daemon\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," -h, --help                  show this help screen\n");
 
   rprintf(F,"\n");
   rprintf(F,"the backup suffix defaults to %s\n",BACKUP_SUFFIX);
   rprintf(F,"the block size defaults to %d\n",BLOCK_SIZE);  
+
+  rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
+  rprintf(F,"See http://samba.anu.edu.au/rsync/ for updates and bug reports\n");
 }
 
 enum {OPT_VERSION,OPT_SUFFIX,OPT_SENDER,OPT_SERVER,OPT_EXCLUDE,
       OPT_EXCLUDE_FROM,OPT_DELETE,OPT_NUMERIC_IDS,OPT_RSYNC_PATH,
-      OPT_FORCE,OPT_TIMEOUT,OPT_DAEMON,OPT_CONFIG,OPT_PORT};
+      OPT_FORCE,OPT_TIMEOUT,OPT_DAEMON,OPT_CONFIG,OPT_PORT,
+      OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
+      OPT_SAFE_LINKS, OPT_COMPARE_DEST, OPT_LOG_FORMAT};
 
 static char *short_options = "oblLWHpguDCtcahvrRIxnSe:B:T:z";
 
@@ -134,6 +161,8 @@ static struct option long_options[] = {
   {"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},
   {"one-file-system",0,  0,    'x'},
   {"ignore-times",0,     0,    'I'},
@@ -152,6 +181,7 @@ static struct option long_options[] = {
   {"perms",       0,     0,    'p'},
   {"links",       0,     0,    'l'},
   {"copy-links",  0,     0,    'L'},
+  {"safe-links",  0,     0,    OPT_SAFE_LINKS},
   {"whole-file",  0,     0,    'W'},
   {"hard-links",  0,     0,    'H'},
   {"owner",       0,     0,    'o'},
@@ -162,300 +192,354 @@ static struct option long_options[] = {
   {"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},
   {"config",      1,     0,    OPT_CONFIG},
   {"port",        1,     0,    OPT_PORT},
+  {"log-format",  1,     0,    OPT_LOG_FORMAT},
   {0,0,0,0}};
 
-void parse_arguments(int argc, char *argv[])
+
+int parse_arguments(int argc, char *argv[])
 {
-    int opt;
-    int option_index;
-
-    while ((opt = getopt_long(argc, argv, 
-			      short_options, long_options, &option_index)) 
-	   != -1) {
-      switch (opt) 
-	{
-	case OPT_VERSION:
-	  printf("rsync version %s  protocol version %d\n",
-		 VERSION,PROTOCOL_VERSION);
-	  exit_cleanup(0);
-
-	case OPT_SUFFIX:
-	  backup_suffix = optarg;
-	  break;
-
-	case OPT_RSYNC_PATH:
-	  rsync_path = optarg;
-	  break;
-
-	case 'I':
-	  ignore_times = 1;
-	  break;
-
-	case 'x':
-	  one_file_system=1;
-	  break;
-
-	case OPT_DELETE:
-	  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);
-	  break;
-
-	case OPT_EXCLUDE_FROM:
-	  add_exclude_file(optarg,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':
+	int opt;
+	int option_index;
+
+	while ((opt = getopt_long(argc, argv, 
+				  short_options, long_options, &option_index)) 
+	       != -1) {
+		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 'I':
+			ignore_times = 1;
+			break;
+
+		case 'x':
+			one_file_system=1;
+			break;
+
+		case OPT_DELETE:
+			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_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;
+			preserve_hard_links=1;
 #else 
-	  rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
-	  exit_cleanup(1);
+			rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
+			return 0;
 #endif
-	  break;
+			break;
 
-	case 'p':
-	  preserve_perms=1;
-	  break;
+		case 'p':
+			preserve_perms=1;
+			break;
 
-	case 'o':
-	  preserve_uid=1;
-	  break;
+		case 'o':
+			preserve_uid=1;
+			break;
 
-	case 'g':
-	  preserve_gid=1;
-	  break;
+		case 'g':
+			preserve_gid=1;
+			break;
 
-	case 'D':
-	  preserve_devices=1;
-	  break;
+		case 'D':
+			preserve_devices=1;
+			break;
 
-	case 't':
-	  preserve_times=1;
-	  break;
+		case 't':
+			preserve_times=1;
+			break;
 
-	case 'c':
-	  always_checksum=1;
-	  break;
+		case 'c':
+			always_checksum=1;
+			break;
 
-	case 'v':
-	  verbose++;
-	  break;
+		case 'v':
+			verbose++;
+			break;
 
-	case 'a':
-	  recurse=1;
+		case 'a':
+			recurse=1;
 #if SUPPORT_LINKS
-	  preserve_links=1;
+			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(1);
-	  }
-	  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_TIMEOUT:
-	  io_timeout = atoi(optarg);
-	  break;
-
-	case 'T':
-		tmpdir = optarg;
-		break;
-
-        case 'z':
-	  do_compression = 1;
-	  break;
-
-	case OPT_DAEMON:
-		am_daemon = 1;
-		break;
-
-	case OPT_CONFIG:
-		config_file = optarg;
-		break;
-
-	case OPT_PORT:
-		rsync_port = atoi(optarg);
-		break;
-
-	default:
-	  /* rprintf(FERROR,"bad option -%c\n",opt); */
-	  exit_cleanup(1);
+			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_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 OPT_CONFIG:
+			config_file = optarg;
+			break;
+
+		case OPT_PORT:
+			rsync_port = atoi(optarg);
+			break;
+
+		case OPT_LOG_FORMAT:
+			log_format = optarg;
+			break;
+
+		default:
+			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];
-  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';
-  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) {
-    sprintf(bsize,"-B%d",block_size);
-    args[ac++] = bsize;
-  }    
-
-  if (io_timeout) {
-    sprintf(iotime,"--timeout=%d",io_timeout);
-    args[ac++] = iotime;
-  }    
-
-  if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
-	  args[ac++] = "--suffix";
-	  args[ac++] = backup_suffix;
-  }
-
-  if (delete_mode)
-    args[ac++] = "--delete";
-
-  if (force_delete)
-    args[ac++] = "--force";
-
-  if (numeric_ids)
-    args[ac++] = "--numeric-ids";
-
-  if (tmpdir) {
-	  args[ac++] = "--temp-dir";
-	  args[ac++] = tmpdir;
-  }
-
-  *argc = ac;
+	int ac = *argc;
+	static char argstr[50];
+	static char bsize[30];
+	static char iotime[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';
+	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) {
+		sprintf(bsize,"-B%d",block_size);
+		args[ac++] = bsize;
+	}    
+
+	if (io_timeout) {
+		sprintf(iotime,"--timeout=%d",io_timeout);
+		args[ac++] = iotime;
+	}    
+
+	if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
+		args[ac++] = "--suffix";
+		args[ac++] = backup_suffix;
+	}
+
+	if (delete_mode)
+		args[ac++] = "--delete";
+
+	if (keep_partial)
+		args[ac++] = "--partial";
+
+	if (force_delete)
+		args[ac++] = "--force";
+
+	if (safe_symlinks)
+		args[ac++] = "--safe-links";
+
+	if (numeric_ids)
+		args[ac++] = "--numeric-ids";
+
+	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;
 }