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simplesshd/rsync/options.c
Greg Alexander d8cc8daef9 rsync 3.1.1 source, after i trimmed away the parts we obviously won't 
need...but most of it remains.
2014-12-21 17:56:03 -05:00

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/*
* Command-line (and received via daemon-socket) option parsing.
*
* Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
* Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
* Copyright (C) 2002-2014 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, visit the http://fsf.org website.
*/
#include "rsync.h"
#include "itypes.h"
#include <popt.h>
#include <zlib.h>
extern int module_id;
extern int local_server;
extern int sanitize_paths;
extern int daemon_over_rsh;
extern unsigned int module_dirlen;
extern filter_rule_list filter_list;
extern filter_rule_list daemon_filter_list;
#define NOT_SPECIFIED (-42)
int make_backups = 0;
/**
* If 1, send the whole file as literal data rather than trying to
* create an incremental diff.
*
* If -1, then look at whether we're local or remote and go by that.
*
* @sa disable_deltas_p()
**/
int whole_file = -1;
int append_mode = 0;
int keep_dirlinks = 0;
int copy_dirlinks = 0;
int copy_links = 0;
int preserve_links = 0;
int preserve_hard_links = 0;
int preserve_acls = 0;
int preserve_xattrs = 0;
int preserve_perms = 0;
int preserve_executability = 0;
int preserve_devices = 0;
int preserve_specials = 0;
int preserve_uid = 0;
int preserve_gid = 0;
int preserve_times = 0;
int update_only = 0;
int cvs_exclude = 0;
int dry_run = 0;
int do_xfers = 1;
int ignore_times = 0;
int delete_mode = 0;
int delete_during = 0;
int delete_before = 0;
int delete_after = 0;
int delete_excluded = 0;
int remove_source_files = 0;
int one_file_system = 0;
int protocol_version = PROTOCOL_VERSION;
int sparse_files = 0;
int preallocate_files = 0;
int do_compression = 0;
int def_compress_level = NOT_SPECIFIED;
int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
int am_server = 0;
int am_sender = 0;
int am_starting_up = 1;
int relative_paths = -1;
int implied_dirs = 1;
int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
int numeric_ids = 0;
int msgs2stderr = 0;
int allow_8bit_chars = 0;
int force_delete = 0;
int io_timeout = 0;
int prune_empty_dirs = 0;
int use_qsort = 0;
char *files_from = NULL;
int filesfrom_fd = -1;
char *filesfrom_host = NULL;
int eol_nulls = 0;
int protect_args = -1;
int human_readable = 1;
int recurse = 0;
int allow_inc_recurse = 1;
int xfer_dirs = -1;
int am_daemon = 0;
int connect_timeout = 0;
int keep_partial = 0;
int safe_symlinks = 0;
int copy_unsafe_links = 0;
int munge_symlinks = 0;
int size_only = 0;
int daemon_bwlimit = 0;
int bwlimit = 0;
int fuzzy_basis = 0;
size_t bwlimit_writemax = 0;
int ignore_existing = 0;
int ignore_non_existing = 0;
int need_messages_from_generator = 0;
int max_delete = INT_MIN;
OFF_T max_size = -1;
OFF_T min_size = -1;
int ignore_errors = 0;
int modify_window = 0;
int blocking_io = -1;
int checksum_seed = 0;
int inplace = 0;
int delay_updates = 0;
long block_size = 0; /* "long" because popt can't set an int32. */
char *skip_compress = NULL;
item_list dparam_list = EMPTY_ITEM_LIST;
/** Network address family. **/
int default_af_hint
#ifdef INET6
= 0; /* Any protocol */
#else
= AF_INET; /* Must use IPv4 */
# ifdef AF_INET6
# undef AF_INET6
# endif
# define AF_INET6 AF_INET /* make -6 option a no-op */
#endif
/** Do not go into the background when run as --daemon. Good
* for debugging and required for running as a service on W32,
* or under Unix process-monitors. **/
int no_detach
#if defined _WIN32 || defined __WIN32__
= 1;
#else
= 0;
#endif
int write_batch = 0;
int read_batch = 0;
int backup_dir_len = 0;
int backup_suffix_len;
unsigned int backup_dir_remainder;
char *backup_suffix = NULL;
char *tmpdir = NULL;
char *partial_dir = NULL;
char *basis_dir[MAX_BASIS_DIRS+1];
char *config_file = NULL;
char *shell_cmd = NULL;
char *logfile_name = NULL;
char *logfile_format = NULL;
char *stdout_format = NULL;
char *password_file = NULL;
char *rsync_path = RSYNC_PATH;
char *backup_dir = NULL;
char backup_dir_buf[MAXPATHLEN];
char *sockopts = NULL;
char *usermap = NULL;
char *groupmap = NULL;
int rsync_port = 0;
int compare_dest = 0;
int copy_dest = 0;
int link_dest = 0;
int basis_dir_cnt = 0;
char *dest_option = NULL;
static int remote_option_alloc = 0;
int remote_option_cnt = 0;
const char **remote_options = NULL;
int quiet = 0;
int output_motd = 1;
int log_before_transfer = 0;
int stdout_format_has_i = 0;
int stdout_format_has_o_or_i = 0;
int logfile_format_has_i = 0;
int logfile_format_has_o_or_i = 0;
int always_checksum = 0;
int list_only = 0;
#define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
char *batch_name = NULL;
int need_unsorted_flist = 0;
#ifdef ICONV_OPTION
char *iconv_opt = ICONV_OPTION;
#endif
struct chmod_mode_struct *chmod_modes = NULL;
static const char *debug_verbosity[] = {
/*0*/ NULL,
/*1*/ NULL,
/*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
/*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
/*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
/*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
};
#define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
static const char *info_verbosity[1+MAX_VERBOSITY] = {
/*0*/ NULL,
/*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
/*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
};
#define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
#define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
#define HELP_PRIORITY 1 /* The help output uses this level. */
#define USER_PRIORITY 2 /* User-specified via --info or --debug */
#define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
#define W_CLI (1<<0) /* client side */
#define W_SRV (1<<1) /* server side */
#define W_SND (1<<2) /* sending side */
#define W_REC (1<<3) /* receiving side */
struct output_struct {
char *name; /* The name of the info/debug flag. */
char *help; /* The description of the info/debug flag. */
uchar namelen; /* The length of the name string. */
uchar flag; /* The flag's value, for consistency check. */
uchar where; /* Bits indicating where the flag is used. */
uchar priority; /* See *_PRIORITY defines. */
};
#define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
static struct output_struct info_words[COUNT_INFO+1] = {
INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
INFO_WORD(SKIP, W_REC, "Mention files that are skipped due to options used"),
INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
{ NULL, "--info", 0, 0, 0, 0 }
};
#define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
static struct output_struct debug_words[COUNT_DEBUG+1] = {
DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-2)"),
DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
{ NULL, "--debug", 0, 0, 0, 0 }
};
static int verbose = 0;
static int do_stats = 0;
static int do_progress = 0;
static int daemon_opt; /* sets am_daemon after option error-reporting */
static int omit_dir_times = 0;
static int omit_link_times = 0;
static int F_option_cnt = 0;
static int modify_window_set;
static int itemize_changes = 0;
static int refused_delete, refused_archive_part, refused_compress;
static int refused_partial, refused_progress, refused_delete_before;
static int refused_delete_during;
static int refused_inplace, refused_no_iconv;
static BOOL usermap_via_chown, groupmap_via_chown;
#ifdef HAVE_SETVBUF
static char *outbuf_mode;
#endif
static char *bwlimit_arg, *max_size_arg, *min_size_arg;
static char tmp_partialdir[] = ".~tmp~";
/** Local address to bind. As a character string because it's
* interpreted by the IPv6 layer: should be a numeric IP4 or IP6
* address, or a hostname. **/
char *bind_address;
static void output_item_help(struct output_struct *words);
/* This constructs a string that represents all the options set for either
* the --info or --debug setting, skipping any implied options (by -v, etc.).
* This is used both when conveying the user's options to the server, and
* when the help output wants to tell the user what options are implied. */
static char *make_output_option(struct output_struct *words, short *levels, uchar where)
{
char *str = words == info_words ? "--info=" : "--debug=";
int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
char *buf;
memset(counts, 0, sizeof counts);
for (j = 0; words[j].name; j++) {
if (words[j].flag != j) {
rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
words == info_words ? "INFO_" : "DEBUG_",
words[j].name, words[j].flag, j);
exit_cleanup(RERR_UNSUPPORTED);
}
if (!(words[j].where & where))
continue;
if (words[j].priority == DEFAULT_PRIORITY) {
/* Implied items don't need to be mentioned. */
skipped++;
continue;
}
len += len ? 1 : strlen(str);
len += strlen(words[j].name);
len += levels[j] == 1 ? 0 : 1;
if (words[j].priority == HELP_PRIORITY)
continue; /* no abbreviating for help */
assert(levels[j] <= MAX_OUT_LEVEL);
if (++counts[levels[j]] > max) {
/* Determine which level has the most items. */
lev = levels[j];
max = counts[lev];
}
}
/* Sanity check the COUNT_* define against the length of the table. */
if (j != word_count) {
rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
j, word_count);
exit_cleanup(RERR_UNSUPPORTED);
}
if (!len)
return NULL;
len++;
if (!(buf = new_array(char, len)))
out_of_memory("make_output_option");
pos = 0;
if (skipped || max < 5)
lev = -1;
else {
if (lev == 0)
pos += snprintf(buf, len, "%sNONE", str);
else if (lev == 1)
pos += snprintf(buf, len, "%sALL", str);
else
pos += snprintf(buf, len, "%sALL%d", str, lev);
}
for (j = 0; words[j].name && pos < len; j++) {
if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
continue;
if (pos)
buf[pos++] = ',';
else
pos += strlcpy(buf+pos, str, len-pos);
if (pos < len)
pos += strlcpy(buf+pos, words[j].name, len-pos);
/* Level 1 is implied by the name alone. */
if (levels[j] != 1 && pos < len)
buf[pos++] = '0' + levels[j];
}
buf[pos] = '\0';
return buf;
}
static void parse_output_words(struct output_struct *words, short *levels,
const char *str, uchar priority)
{
const char *s;
int j, len, lev;
if (!str)
return;
while (*str) {
if ((s = strchr(str, ',')) != NULL)
len = s++ - str;
else
len = strlen(str);
while (len && isDigit(str+len-1))
len--;
lev = isDigit(str+len) ? atoi(str+len) : 1;
if (lev > MAX_OUT_LEVEL)
lev = MAX_OUT_LEVEL;
if (len == 4 && strncasecmp(str, "help", 4) == 0) {
output_item_help(words);
exit_cleanup(0);
}
if (len == 4 && strncasecmp(str, "none", 4) == 0)
len = lev = 0;
else if (len == 3 && strncasecmp(str, "all", 3) == 0)
len = 0;
for (j = 0; words[j].name; j++) {
if (!len
|| (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
if (priority >= words[j].priority) {
words[j].priority = priority;
levels[j] = lev;
}
if (len)
break;
}
}
if (len && !words[j].name) {
rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
words[j].help, len, str);
exit_cleanup(RERR_SYNTAX);
}
if (!s)
break;
str = s;
}
}
/* Tell the user what all the info or debug flags mean. */
static void output_item_help(struct output_struct *words)
{
short *levels = words == info_words ? info_levels : debug_levels;
const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
char buf[128], *opt, *fmt = "%-10s %s\n";
int j;
reset_output_levels();
rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
rprintf(FINFO, "\n");
for (j = 0; words[j].name; j++)
rprintf(FINFO, fmt, words[j].name, words[j].help);
rprintf(FINFO, "\n");
snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
words[j].help, MAX_OUT_LEVEL);
rprintf(FINFO, fmt, "ALL", buf);
snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
words[j].help);
rprintf(FINFO, fmt, "NONE", buf);
rprintf(FINFO, fmt, "HELP", "Output this help message");
rprintf(FINFO, "\n");
rprintf(FINFO, "Options added for each increase in verbose level:\n");
for (j = 1; j <= MAX_VERBOSITY; j++) {
parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
if (opt) {
rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
free(opt);
}
reset_output_levels();
}
}
/* The --verbose option now sets info+debug flags. */
static void set_output_verbosity(int level, uchar priority)
{
int j;
if (level > MAX_VERBOSITY)
level = MAX_VERBOSITY;
for (j = 1; j <= level; j++) {
parse_output_words(info_words, info_levels, info_verbosity[j], priority);
parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
}
}
/* Limit the info+debug flag levels given a verbose-option level limit. */
void limit_output_verbosity(int level)
{
short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
int j;
if (level > MAX_VERBOSITY)
return;
memset(info_limits, 0, sizeof info_limits);
memset(debug_limits, 0, sizeof debug_limits);
/* Compute the level limits in the above arrays. */
for (j = 1; j <= level; j++) {
parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
}
for (j = 0; j < COUNT_INFO; j++) {
if (info_levels[j] > info_limits[j])
info_levels[j] = info_limits[j];
}
for (j = 0; j < COUNT_DEBUG; j++) {
if (debug_levels[j] > debug_limits[j])
debug_levels[j] = debug_limits[j];
}
}
void reset_output_levels(void)
{
int j;
memset(info_levels, 0, sizeof info_levels);
memset(debug_levels, 0, sizeof debug_levels);
for (j = 0; j < COUNT_INFO; j++)
info_words[j].priority = DEFAULT_PRIORITY;
for (j = 0; j < COUNT_DEBUG; j++)
debug_words[j].priority = DEFAULT_PRIORITY;
}
void negate_output_levels(void)
{
int j;
for (j = 0; j < COUNT_INFO; j++)
info_levels[j] *= -1;
for (j = 0; j < COUNT_DEBUG; j++)
debug_levels[j] *= -1;
}
static void print_rsync_version(enum logcode f)
{
char *subprotocol = "";
char const *got_socketpair = "no ";
char const *have_inplace = "no ";
char const *hardlinks = "no ";
char const *prealloc = "no ";
char const *symtimes = "no ";
char const *acls = "no ";
char const *xattrs = "no ";
char const *links = "no ";
char const *iconv = "no ";
char const *ipv6 = "no ";
STRUCT_STAT *dumstat;
#if SUBPROTOCOL_VERSION != 0
if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
out_of_memory("print_rsync_version");
#endif
#ifdef HAVE_SOCKETPAIR
got_socketpair = "";
#endif
#ifdef HAVE_FTRUNCATE
have_inplace = "";
#endif
#ifdef SUPPORT_HARD_LINKS
hardlinks = "";
#endif
#ifdef SUPPORT_PREALLOCATION
prealloc = "";
#endif
#ifdef SUPPORT_ACLS
acls = "";
#endif
#ifdef SUPPORT_XATTRS
xattrs = "";
#endif
#ifdef SUPPORT_LINKS
links = "";
#endif
#ifdef INET6
ipv6 = "";
#endif
#ifdef ICONV_OPTION
iconv = "";
#endif
#ifdef CAN_SET_SYMLINK_TIMES
symtimes = "";
#endif
rprintf(f, "%s version %s protocol version %d%s\n",
RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION, subprotocol);
rprintf(f, "Copyright (C) 1996-2014 by Andrew Tridgell, Wayne Davison, and others.\n");
rprintf(f, "Web site: http://rsync.samba.org/\n");
rprintf(f, "Capabilities:\n");
rprintf(f, " %d-bit files, %d-bit inums, %d-bit timestamps, %d-bit long ints,\n",
(int)(sizeof (OFF_T) * 8),
(int)(sizeof dumstat->st_ino * 8), /* Don't check ino_t! */
(int)(sizeof (time_t) * 8),
(int)(sizeof (int64) * 8));
rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n",
got_socketpair, hardlinks, links, ipv6, have_inplace);
rprintf(f, " %sappend, %sACLs, %sxattrs, %siconv, %ssymtimes, %sprealloc\n",
have_inplace, acls, xattrs, iconv, symtimes, prealloc);
#ifdef MAINTAINER_MODE
rprintf(f, "Panic Action: \"%s\"\n", get_panic_action());
#endif
#if SIZEOF_INT64 < 8
rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
#endif
if (sizeof (int64) != SIZEOF_INT64) {
rprintf(f,
"WARNING: size mismatch in SIZEOF_INT64 define (%d != %d)\n",
(int) SIZEOF_INT64, (int) sizeof (int64));
}
rprintf(f,"\n");
rprintf(f,"rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n");
rprintf(f,"are welcome to redistribute it under certain conditions. See the GNU\n");
rprintf(f,"General Public Licence for details.\n");
}
void usage(enum logcode F)
{
print_rsync_version(F);
rprintf(F,"\n");
rprintf(F,"rsync is a file transfer program capable of efficient remote update\n");
rprintf(F,"via a fast differencing algorithm.\n");
rprintf(F,"\n");
rprintf(F,"Usage: rsync [OPTION]... SRC [SRC]... DEST\n");
rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST\n");
rprintf(F," or rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST\n");
rprintf(F," or rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST\n");
rprintf(F," or rsync [OPTION]... [USER@]HOST:SRC [DEST]\n");
rprintf(F," or rsync [OPTION]... [USER@]HOST::SRC [DEST]\n");
rprintf(F," or rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]\n");
rprintf(F,"The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect\n");
rprintf(F,"to an rsync daemon, and require SRC or DEST to start with a module name.\n");
rprintf(F,"\n");
rprintf(F,"Options\n");
rprintf(F," -v, --verbose increase verbosity\n");
rprintf(F," --info=FLAGS fine-grained informational verbosity\n");
rprintf(F," --debug=FLAGS fine-grained debug verbosity\n");
rprintf(F," --msgs2stderr special output handling for debugging\n");
rprintf(F," -q, --quiet suppress non-error messages\n");
rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n");
rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n");
rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n");
rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n");
rprintf(F," -r, --recursive recurse into directories\n");
rprintf(F," -R, --relative use relative path names\n");
rprintf(F," --no-implied-dirs don't send implied dirs with --relative\n");
rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
rprintf(F," --backup-dir=DIR make backups into hierarchy based in DIR\n");
rprintf(F," --suffix=SUFFIX set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
rprintf(F," -u, --update skip files that are newer on the receiver\n");
rprintf(F," --inplace update destination files in-place (SEE MAN PAGE)\n");
rprintf(F," --append append data onto shorter files\n");
rprintf(F," --append-verify like --append, but with old data in file checksum\n");
rprintf(F," -d, --dirs transfer directories without recursing\n");
rprintf(F," -l, --links copy symlinks as symlinks\n");
rprintf(F," -L, --copy-links transform symlink into referent file/dir\n");
rprintf(F," --copy-unsafe-links only \"unsafe\" symlinks are transformed\n");
rprintf(F," --safe-links ignore symlinks that point outside the source tree\n");
rprintf(F," --munge-links munge symlinks to make them safer (but unusable)\n");
rprintf(F," -k, --copy-dirlinks transform symlink to a dir into referent dir\n");
rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
rprintf(F," -H, --hard-links preserve hard links\n");
rprintf(F," -p, --perms preserve permissions\n");
rprintf(F," -E, --executability preserve the file's executability\n");
rprintf(F," --chmod=CHMOD affect file and/or directory permissions\n");
#ifdef SUPPORT_ACLS
rprintf(F," -A, --acls preserve ACLs (implies --perms)\n");
#endif
#ifdef SUPPORT_XATTRS
rprintf(F," -X, --xattrs preserve extended attributes\n");
#endif
rprintf(F," -o, --owner preserve owner (super-user only)\n");
rprintf(F," -g, --group preserve group\n");
rprintf(F," --devices preserve device files (super-user only)\n");
rprintf(F," --specials preserve special files\n");
rprintf(F," -D same as --devices --specials\n");
rprintf(F," -t, --times preserve modification times\n");
rprintf(F," -O, --omit-dir-times omit directories from --times\n");
rprintf(F," -J, --omit-link-times omit symlinks from --times\n");
rprintf(F," --super receiver attempts super-user activities\n");
#ifdef SUPPORT_XATTRS
rprintf(F," --fake-super store/recover privileged attrs using xattrs\n");
#endif
rprintf(F," -S, --sparse handle sparse files efficiently\n");
#ifdef SUPPORT_PREALLOCATION
rprintf(F," --preallocate allocate dest files before writing them\n");
#else
rprintf(F," --preallocate pre-allocate dest files on remote receiver\n");
#endif
rprintf(F," -n, --dry-run perform a trial run with no changes made\n");
rprintf(F," -W, --whole-file copy files whole (without delta-xfer algorithm)\n");
rprintf(F," -x, --one-file-system don't cross filesystem boundaries\n");
rprintf(F," -B, --block-size=SIZE force a fixed checksum block-size\n");
rprintf(F," -e, --rsh=COMMAND specify the remote shell to use\n");
rprintf(F," --rsync-path=PROGRAM specify the rsync to run on the remote machine\n");
rprintf(F," --existing skip creating new files on receiver\n");
rprintf(F," --ignore-existing skip updating files that already exist on receiver\n");
rprintf(F," --remove-source-files sender removes synchronized files (non-dirs)\n");
rprintf(F," --del an alias for --delete-during\n");
rprintf(F," --delete delete extraneous files from destination dirs\n");
rprintf(F," --delete-before receiver deletes before transfer, not during\n");
rprintf(F," --delete-during receiver deletes during the transfer\n");
rprintf(F," --delete-delay find deletions during, delete after\n");
rprintf(F," --delete-after receiver deletes after transfer, not during\n");
rprintf(F," --delete-excluded also delete excluded files from destination dirs\n");
rprintf(F," --ignore-missing-args ignore missing source args without error\n");
rprintf(F," --delete-missing-args delete missing source args from destination\n");
rprintf(F," --ignore-errors delete even if there are I/O errors\n");
rprintf(F," --force force deletion of directories even if not empty\n");
rprintf(F," --max-delete=NUM don't delete more than NUM files\n");
rprintf(F," --max-size=SIZE don't transfer any file larger than SIZE\n");
rprintf(F," --min-size=SIZE don't transfer any file smaller than SIZE\n");
rprintf(F," --partial keep partially transferred files\n");
rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
rprintf(F," --usermap=STRING custom username mapping\n");
rprintf(F," --groupmap=STRING custom groupname mapping\n");
rprintf(F," --chown=USER:GROUP simple username/groupname mapping\n");
rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
rprintf(F," -M, --remote-option=OPTION send OPTION to the remote side only\n");
rprintf(F," --size-only skip files that match in size\n");
rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
rprintf(F," -z, --compress compress file data during the transfer\n");
rprintf(F," --compress-level=NUM explicitly set compression level\n");
rprintf(F," --skip-compress=LIST skip compressing files with a suffix in LIST\n");
rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n");
rprintf(F," -f, --filter=RULE add a file-filtering RULE\n");
rprintf(F," -F same as --filter='dir-merge /.rsync-filter'\n");
rprintf(F," repeated: --filter='- .rsync-filter'\n");
rprintf(F," --exclude=PATTERN exclude files matching PATTERN\n");
rprintf(F," --exclude-from=FILE read exclude patterns from FILE\n");
rprintf(F," --include=PATTERN don't exclude files matching PATTERN\n");
rprintf(F," --include-from=FILE read include patterns from FILE\n");
rprintf(F," --files-from=FILE read list of source-file names from FILE\n");
rprintf(F," -0, --from0 all *-from/filter files are delimited by 0s\n");
rprintf(F," -s, --protect-args no space-splitting; only wildcard special-chars\n");
rprintf(F," --address=ADDRESS bind address for outgoing socket to daemon\n");
rprintf(F," --port=PORT specify double-colon alternate port number\n");
rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
rprintf(F," --blocking-io use blocking I/O for the remote shell\n");
rprintf(F," --stats give some file-transfer stats\n");
rprintf(F," -8, --8-bit-output leave high-bit chars unescaped in output\n");
rprintf(F," -h, --human-readable output numbers in a human-readable format\n");
rprintf(F," --progress show progress during transfer\n");
rprintf(F," -P same as --partial --progress\n");
rprintf(F," -i, --itemize-changes output a change-summary for all updates\n");
rprintf(F," --out-format=FORMAT output updates using the specified FORMAT\n");
rprintf(F," --log-file=FILE log what we're doing to the specified FILE\n");
rprintf(F," --log-file-format=FMT log updates using the specified FMT\n");
rprintf(F," --password-file=FILE read daemon-access password from FILE\n");
rprintf(F," --list-only list the files instead of copying them\n");
rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
#ifdef HAVE_SETVBUF
rprintf(F," --outbuf=N|L|B set output buffering to None, Line, or Block\n");
#endif
rprintf(F," --write-batch=FILE write a batched update to FILE\n");
rprintf(F," --only-write-batch=FILE like --write-batch but w/o updating destination\n");
rprintf(F," --read-batch=FILE read a batched update from FILE\n");
rprintf(F," --protocol=NUM force an older protocol version to be used\n");
#ifdef ICONV_OPTION
rprintf(F," --iconv=CONVERT_SPEC request charset conversion of filenames\n");
#endif
rprintf(F," --checksum-seed=NUM set block/file checksum seed (advanced)\n");
rprintf(F," -4, --ipv4 prefer IPv4\n");
rprintf(F," -6, --ipv6 prefer IPv6\n");
rprintf(F," --version print version number\n");
rprintf(F,"(-h) --help show this help (-h is --help only if used alone)\n");
rprintf(F,"\n");
rprintf(F,"Use \"rsync --daemon --help\" to see the daemon-mode command-line options.\n");
rprintf(F,"Please see the rsync(1) and rsyncd.conf(5) man pages for full documentation.\n");
rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
}
enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG,
OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT,
OPT_SERVER, OPT_REFUSED_BASE = 9000};
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
{"version", 0, POPT_ARG_NONE, 0, OPT_VERSION, 0, 0},
{"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
{"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
{"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
{"msgs2stderr", 0, POPT_ARG_NONE, &msgs2stderr, 0, 0, 0 },
{"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
{"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
{"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
{"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
{"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
{"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
{"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
{"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
{"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
{"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
{"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
{"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
{"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
{"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
{"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
{"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
{"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
{"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
{"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
{"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
{"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
{"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
{"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
{"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
{"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
{"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
{"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
{"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
{"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
{"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
{"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
{"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 },
{"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
{"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 },
{"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
{"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
{"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
{"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
{"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
{"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
{"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
{"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
{"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
{"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
{"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
{"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
{"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
{"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
{"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
{"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
{0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
{"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
{"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
{"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
{"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
{"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
{"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
{"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
{"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
{"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
{"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
{"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
{"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
{"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
{"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
{"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
{"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
{"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
{"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
{"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
{"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
{"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
{"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
{"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
{"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
{"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
{"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
{"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
{"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
{"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
{"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
{"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
{"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
{"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
{"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
{"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
{"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
{"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
{"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
{"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
{"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
{"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
{"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
{"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
{"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
{"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
{"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
{"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
{"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
{"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
{"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
{"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
{"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
{"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
{"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
{"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
{"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
{"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
{"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
{"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
{"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
{0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
{"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
{"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
{"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
{"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
{"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
{"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
{"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
{"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
{"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
{"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
{"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
{"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
{"block-size", 'B', POPT_ARG_LONG, &block_size, 0, 0, 0 },
{"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
{"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
{"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
{"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
{"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
{"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
{"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
{"old-compress", 0, POPT_ARG_VAL, &do_compression, 1, 0, 0 },
{"new-compress", 0, POPT_ARG_VAL, &do_compression, 2, 0, 0 },
{"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
{"no-z", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
{"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
{"compress-level", 0, POPT_ARG_INT, &def_compress_level, 0, 0, 0 },
{0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
{"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
{"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
{"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
{"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
{"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
{"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
{"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
{"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
{"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
{"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
{"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
{"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
{"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
{"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
{"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
{"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
{"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
{"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
{"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
{"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
{"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
{"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
{"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
{"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
{"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
{"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
{"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
{"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
{"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
{"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
{"protect-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
{"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
{"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
{"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
{"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
{"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
{"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
{"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
{"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
{"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
{"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
{"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
{"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
{"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
{"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
#ifdef ICONV_OPTION
{"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
{"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
#endif
{"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
{"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
{"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
{"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
{"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
{"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
{"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
{"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
{"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
{"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
{"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
{"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
#ifdef HAVE_SETVBUF
{"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
#endif
{"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
{"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
{"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
{"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
{"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
/* All the following options switch us into daemon-mode option-parsing. */
{"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
{"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
{"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{0,0,0,0, 0, 0, 0}
};
static void daemon_usage(enum logcode F)
{
print_rsync_version(F);
rprintf(F,"\n");
rprintf(F,"Usage: rsync --daemon [OPTION]...\n");
rprintf(F," --address=ADDRESS bind to the specified address\n");
rprintf(F," --bwlimit=RATE limit socket I/O bandwidth\n");
rprintf(F," --config=FILE specify alternate rsyncd.conf file\n");
rprintf(F," -M, --dparam=OVERRIDE override global daemon config parameter\n");
rprintf(F," --no-detach do not detach from the parent\n");
rprintf(F," --port=PORT listen on alternate port number\n");
rprintf(F," --log-file=FILE override the \"log file\" setting\n");
rprintf(F," --log-file-format=FMT override the \"log format\" setting\n");
rprintf(F," --sockopts=OPTIONS specify custom TCP options\n");
rprintf(F," -v, --verbose increase verbosity\n");
rprintf(F," -4, --ipv4 prefer IPv4\n");
rprintf(F," -6, --ipv6 prefer IPv6\n");
rprintf(F," --help show this help screen\n");
rprintf(F,"\n");
rprintf(F,"If you were not trying to invoke rsync as a daemon, avoid using any of the\n");
rprintf(F,"daemon-specific rsync options. See also the rsyncd.conf(5) man page.\n");
}
static struct poptOption long_daemon_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
{"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
{"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
{"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
{"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
{"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
{"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
{"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
{"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
{"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
{"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
{"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
{"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
{"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
{"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
{"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
{"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
{"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
{0,0,0,0, 0, 0, 0}
};
static char err_buf[200];
/**
* Store the option error message, if any, so that we can log the
* connection attempt (which requires parsing the options), and then
* show the error later on.
**/
void option_error(void)
{
if (!err_buf[0]) {
strlcpy(err_buf, "Error parsing options: option may "
"be supported on client but not on server?\n",
sizeof err_buf);
}
rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
msleep(20);
}
/**
* Tweak the option table to disable all options that the rsyncd.conf
* file has told us to refuse.
**/
static void set_refuse_options(char *bp)
{
struct poptOption *op;
char *cp, shortname[2];
int is_wild, found_match;
shortname[1] = '\0';
while (1) {
while (*bp == ' ') bp++;
if (!*bp)
break;
if ((cp = strchr(bp, ' ')) != NULL)
*cp= '\0';
is_wild = strpbrk(bp, "*?[") != NULL;
found_match = 0;
for (op = long_options; ; op++) {
*shortname = op->shortName;
if (!op->longName && !*shortname)
break;
if ((op->longName && wildmatch(bp, op->longName))
|| (*shortname && wildmatch(bp, shortname))) {
if (op->argInfo == POPT_ARG_VAL)
op->argInfo = POPT_ARG_NONE;
op->val = (op - long_options) + OPT_REFUSED_BASE;
found_match = 1;
/* These flags are set to let us easily check
* an implied option later in the code. */
switch (*shortname) {
case 'r': case 'd': case 'l': case 'p':
case 't': case 'g': case 'o': case 'D':
refused_archive_part = op->val;
break;
case 'z':
refused_compress = op->val;
break;
case '\0':
if (wildmatch("delete", op->longName))
refused_delete = op->val;
else if (wildmatch("delete-before", op->longName))
refused_delete_before = op->val;
else if (wildmatch("delete-during", op->longName))
refused_delete_during = op->val;
else if (wildmatch("partial", op->longName))
refused_partial = op->val;
else if (wildmatch("progress", op->longName))
refused_progress = op->val;
else if (wildmatch("inplace", op->longName))
refused_inplace = op->val;
else if (wildmatch("no-iconv", op->longName))
refused_no_iconv = op->val;
break;
}
if (!is_wild)
break;
}
}
if (!found_match) {
rprintf(FLOG, "No match for refuse-options string \"%s\"\n",
bp);
}
if (!cp)
break;
*cp = ' ';
bp = cp + 1;
}
}
static int count_args(const char **argv)
{
int i = 0;
if (argv) {
while (argv[i] != NULL)
i++;
}
return i;
}
static OFF_T parse_size_arg(char **size_arg, char def_suf)
{
int reps, mult, make_compatible = 0;
const char *arg;
OFF_T size = 1;
for (arg = *size_arg; isDigit(arg); arg++) {}
if (*arg == '.')
for (arg++; isDigit(arg); arg++) {}
switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
case 'b': case 'B':
reps = 0;
break;
case 'k': case 'K':
reps = 1;
break;
case 'm': case 'M':
reps = 2;
break;
case 'g': case 'G':
reps = 3;
break;
default:
return -1;
}
if (*arg == 'b' || *arg == 'B')
mult = 1000, make_compatible = 1, arg++;
else if (!*arg || *arg == '+' || *arg == '-')
mult = 1024;
else if (strncasecmp(arg, "ib", 2) == 0)
mult = 1024, arg += 2;
else
return -1;
while (reps--)
size *= mult;
size *= atof(*size_arg);
if ((*arg == '+' || *arg == '-') && arg[1] == '1')
size += atoi(arg), make_compatible = 1, arg += 2;
if (*arg)
return -1;
if (size > 0 && make_compatible && def_suf == 'b') {
/* We convert this manually because we may need %lld precision,
* and that's not a portable sprintf() escape. */
char buf[128], *s = buf + sizeof buf - 1;
OFF_T num = size;
*s = '\0';
while (num) {
*--s = (char)(num % 10) + '0';
num /= 10;
}
if (!(*size_arg = strdup(s)))
out_of_memory("parse_size_arg");
}
return size;
}
static void create_refuse_error(int which)
{
/* The "which" value is the index + OPT_REFUSED_BASE. */
struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
int n = snprintf(err_buf, sizeof err_buf,
"The server is configured to refuse --%s\n",
op->longName) - 1;
if (op->shortName) {
snprintf(err_buf + n, sizeof err_buf - n,
" (-%c)\n", op->shortName);
}
}
/**
* Process command line arguments. Called on both local and remote.
*
* @retval 1 if all options are OK; with globals set to appropriate
* values
*
* @retval 0 on error, with err_buf containing an explanation
**/
int parse_arguments(int *argc_p, const char ***argv_p)
{
static poptContext pc;
char *ref = lp_refuse_options(module_id);
const char *arg, **argv = *argv_p;
int argc = *argc_p;
int opt;
if (ref && *ref)
set_refuse_options(ref);
if (am_daemon) {
set_refuse_options("log-file*");
#ifdef ICONV_OPTION
if (!*lp_charset(module_id))
set_refuse_options("iconv");
#endif
}
#ifdef ICONV_OPTION
if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
iconv_opt = strdup(arg);
#endif
/* TODO: Call poptReadDefaultConfig; handle errors. */
/* The context leaks in case of an error, but if there's a
* problem we always exit anyhow. */
if (pc)
poptFreeContext(pc);
pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
if (!am_server)
poptReadDefaultConfig(pc, 0);
while ((opt = poptGetNextOpt(pc)) != -1) {
/* most options are handled automatically by popt;
* only special cases are returned and listed here. */
switch (opt) {
case OPT_VERSION:
print_rsync_version(FINFO);
exit_cleanup(0);
case OPT_SERVER:
if (!am_server) {
/* Disable popt aliases on the server side and
* then start parsing the options again. */
poptFreeContext(pc);
pc = poptGetContext(RSYNC_NAME, argc, argv,
long_options, 0);
am_server = 1;
}
#ifdef ICONV_OPTION
iconv_opt = NULL;
#endif
break;
case OPT_SENDER:
if (!am_server) {
usage(FERROR);
exit_cleanup(RERR_SYNTAX);
}
am_sender = 1;
break;
case OPT_DAEMON:
if (am_daemon) {
strlcpy(err_buf,
"Attempt to hack rsync thwarted!\n",
sizeof err_buf);
return 0;
}
#ifdef ICONV_OPTION
iconv_opt = NULL;
#endif
protect_args = 0;
poptFreeContext(pc);
pc = poptGetContext(RSYNC_NAME, argc, argv,
long_daemon_options, 0);
while ((opt = poptGetNextOpt(pc)) != -1) {
char **cpp;
switch (opt) {
case 'h':
daemon_usage(FINFO);
exit_cleanup(0);
case 'M':
arg = poptGetOptArg(pc);
if (!strchr(arg, '=')) {
rprintf(FERROR,
"--dparam value is missing an '=': %s\n",
arg);
goto daemon_error;
}
cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
*cpp = strdup(arg);
break;
case 'v':
verbose++;
break;
default:
rprintf(FERROR,
"rsync: %s: %s (in daemon mode)\n",
poptBadOption(pc, POPT_BADOPTION_NOALIAS),
poptStrerror(opt));
goto daemon_error;
}
}
if (dparam_list.count && !set_dparams(1))
exit_cleanup(RERR_SYNTAX);
if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
snprintf(err_buf, sizeof err_buf,
"the --temp-dir path is WAY too long.\n");
return 0;
}
if (!daemon_opt) {
rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
daemon_error:
rprintf(FERROR,
"(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
exit_cleanup(RERR_SYNTAX);
}
*argv_p = argv = poptGetArgs(pc);
*argc_p = argc = count_args(argv);
am_starting_up = 0;
daemon_opt = 0;
am_daemon = 1;
return 1;
case OPT_MODIFY_WINDOW:
/* The value has already been set by popt, but
* we need to remember that we're using a
* non-default setting. */
modify_window_set = 1;
break;
case OPT_FILTER:
parse_filter_str(&filter_list, poptGetOptArg(pc),
rule_template(0), 0);
break;
case OPT_EXCLUDE:
parse_filter_str(&filter_list, poptGetOptArg(pc),
rule_template(0), XFLG_OLD_PREFIXES);
break;
case OPT_INCLUDE:
parse_filter_str(&filter_list, poptGetOptArg(pc),
rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
break;
case OPT_EXCLUDE_FROM:
case OPT_INCLUDE_FROM:
arg = poptGetOptArg(pc);
if (sanitize_paths)
arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
if (daemon_filter_list.head) {
int rej;
char *cp = strdup(arg);
if (!cp)
out_of_memory("parse_arguments");
if (!*cp)
rej = 1;
else {
char *dir = cp + (*cp == '/' ? module_dirlen : 0);
clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
}
free(cp);
if (rej)
goto options_rejected;
}
parse_filter_file(&filter_list, arg,
rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
break;
case 'a':
if (refused_archive_part) {
create_refuse_error(refused_archive_part);
return 0;
}
if (!recurse) /* preserve recurse == 2 */
recurse = 1;
#ifdef SUPPORT_LINKS
preserve_links = 1;
#endif
preserve_perms = 1;
preserve_times = 1;
preserve_gid = 1;
preserve_uid = 1;
preserve_devices = 1;
preserve_specials = 1;
break;
case 'D':
preserve_devices = preserve_specials = 1;
break;
case OPT_NO_D:
preserve_devices = preserve_specials = 0;
break;
case 'h':
human_readable++;
break;
case 'H':
preserve_hard_links++;
break;
case 'i':
itemize_changes++;
break;
case 'v':
verbose++;
break;
case 'y':
fuzzy_basis++;
break;
case 'q':
quiet++;
break;
case 'x':
one_file_system++;
break;
case 'F':
switch (++F_option_cnt) {
case 1:
parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
break;
case 2:
parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
break;
}
break;
case 'P':
if (refused_partial || refused_progress) {
create_refuse_error(refused_partial
? refused_partial : refused_progress);
return 0;
}
do_progress = 1;
keep_partial = 1;
break;
case 'z':
do_compression++;
break;
case 'M':
arg = poptGetOptArg(pc);
if (*arg != '-') {
snprintf(err_buf, sizeof err_buf,
"Remote option must start with a dash: %s\n", arg);
return 0;
}
if (remote_option_cnt+2 >= remote_option_alloc) {
remote_option_alloc += 16;
remote_options = realloc_array(remote_options,
const char *, remote_option_alloc);
if (!remote_options)
out_of_memory("parse_arguments");
if (!remote_option_cnt)
remote_options[0] = "ARG0";
}
remote_options[++remote_option_cnt] = arg;
remote_options[remote_option_cnt+1] = NULL;
break;
case OPT_WRITE_BATCH:
/* batch_name is already set */
write_batch = 1;
break;
case OPT_ONLY_WRITE_BATCH:
/* batch_name is already set */
write_batch = -1;
break;
case OPT_READ_BATCH:
/* batch_name is already set */
read_batch = 1;
break;
case OPT_NO_ICONV:
#ifdef ICONV_OPTION
iconv_opt = NULL;
#endif
break;
case OPT_MAX_SIZE:
if ((max_size = parse_size_arg(&max_size_arg, 'b')) < 0) {
snprintf(err_buf, sizeof err_buf,
"--max-size value is invalid: %s\n",
max_size_arg);
return 0;
}
break;
case OPT_MIN_SIZE:
if ((min_size = parse_size_arg(&min_size_arg, 'b')) < 0) {
snprintf(err_buf, sizeof err_buf,
"--min-size value is invalid: %s\n",
min_size_arg);
return 0;
}
break;
case OPT_BWLIMIT:
{
OFF_T limit = parse_size_arg(&bwlimit_arg, 'K');
if (limit < 0) {
snprintf(err_buf, sizeof err_buf,
"--bwlimit value is invalid: %s\n", bwlimit_arg);
return 0;
}
bwlimit = (limit + 512) / 1024;
if (limit && !bwlimit) {
snprintf(err_buf, sizeof err_buf,
"--bwlimit value is too small: %s\n", bwlimit_arg);
return 0;
}
}
break;
case OPT_APPEND:
if (am_server)
append_mode++;
else
append_mode = 1;
break;
case OPT_LINK_DEST:
#ifdef SUPPORT_HARD_LINKS
link_dest = 1;
dest_option = "--link-dest";
goto set_dest_dir;
#else
snprintf(err_buf, sizeof err_buf,
"hard links are not supported on this %s\n",
am_server ? "server" : "client");
return 0;
#endif
case OPT_COPY_DEST:
copy_dest = 1;
dest_option = "--copy-dest";
goto set_dest_dir;
case OPT_COMPARE_DEST:
compare_dest = 1;
dest_option = "--compare-dest";
set_dest_dir:
if (basis_dir_cnt >= MAX_BASIS_DIRS) {
snprintf(err_buf, sizeof err_buf,
"ERROR: at most %d %s args may be specified\n",
MAX_BASIS_DIRS, dest_option);
return 0;
}
/* We defer sanitizing this arg until we know what
* our destination directory is going to be. */
basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
break;
case OPT_CHMOD:
arg = poptGetOptArg(pc);
if (!parse_chmod(arg, &chmod_modes)) {
snprintf(err_buf, sizeof err_buf,
"Invalid argument passed to --chmod (%s)\n",
arg);
return 0;
}
break;
case OPT_INFO:
arg = poptGetOptArg(pc);
parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
break;
case OPT_DEBUG:
arg = poptGetOptArg(pc);
parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
break;
case OPT_USERMAP:
if (usermap) {
if (usermap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--usermap conflicts with prior --chown.\n");
return 0;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify --usermap once.\n");
return 0;
}
usermap = (char *)poptGetOptArg(pc);
usermap_via_chown = False;
break;
case OPT_GROUPMAP:
if (groupmap) {
if (groupmap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--groupmap conflicts with prior --chown.\n");
return 0;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify --groupmap once.\n");
return 0;
}
groupmap = (char *)poptGetOptArg(pc);
groupmap_via_chown = False;
break;
case OPT_CHOWN: {
const char *chown = poptGetOptArg(pc);
int len;
if ((arg = strchr(chown, ':')) != NULL)
len = arg++ - chown;
else
len = strlen(chown);
if (len) {
if (usermap) {
if (!usermap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--chown conflicts with prior --usermap.\n");
return 0;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify a user-affecting --chown once.\n");
return 0;
}
if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
out_of_memory("parse_arguments");
usermap_via_chown = True;
}
if (arg && *arg) {
if (groupmap) {
if (!groupmap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--chown conflicts with prior --groupmap.\n");
return 0;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify a group-affecting --chown once.\n");
return 0;
}
if (asprintf(&groupmap, "*:%s", arg) < 0)
out_of_memory("parse_arguments");
groupmap_via_chown = True;
}
break;
}
case OPT_HELP:
usage(FINFO);
exit_cleanup(0);
case 'A':
#ifdef SUPPORT_ACLS
preserve_acls = 1;
preserve_perms = 1;
break;
#else
/* FIXME: this should probably be ignored with a
* warning and then countermeasures taken to
* restrict group and other access in the presence
* of any more restrictive ACLs, but this is safe
* for now */
snprintf(err_buf,sizeof(err_buf),
"ACLs are not supported on this %s\n",
am_server ? "server" : "client");
return 0;
#endif
case 'X':
#ifdef SUPPORT_XATTRS
preserve_xattrs++;
break;
#else
snprintf(err_buf,sizeof(err_buf),
"extended attributes are not supported on this %s\n",
am_server ? "server" : "client");
return 0;
#endif
default:
/* A large opt value means that set_refuse_options()
* turned this option off. */
if (opt >= OPT_REFUSED_BASE) {
create_refuse_error(opt);
return 0;
}
snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
am_server ? "on remote machine: " : "",
poptBadOption(pc, POPT_BADOPTION_NOALIAS),
poptStrerror(opt));
return 0;
}
}
if (protect_args < 0) {
if (am_server)
protect_args = 0;
else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
protect_args = atoi(arg) ? 1 : 0;
else {
#ifdef RSYNC_USE_PROTECTED_ARGS
protect_args = 1;
#else
protect_args = 0;
#endif
}
}
if (human_readable > 1 && argc == 2 && !am_server) {
/* Allow the old meaning of 'h' (--help) on its own. */
usage(FINFO);
exit_cleanup(0);
}
if (do_compression || def_compress_level != NOT_SPECIFIED) {
if (def_compress_level == NOT_SPECIFIED)
def_compress_level = Z_DEFAULT_COMPRESSION;
else if (def_compress_level < Z_DEFAULT_COMPRESSION || def_compress_level > Z_BEST_COMPRESSION) {
snprintf(err_buf, sizeof err_buf, "--compress-level value is invalid: %d\n",
def_compress_level);
return 0;
} else if (def_compress_level == Z_NO_COMPRESSION)
do_compression = 0;
else if (!do_compression)
do_compression = 1;
if (do_compression && refused_compress) {
create_refuse_error(refused_compress);
return 0;
}
#ifdef EXTERNAL_ZLIB
if (do_compression == 1) {
snprintf(err_buf, sizeof err_buf,
"This rsync lacks old-style --compress due to its external zlib. Try -zz.\n");
if (am_server)
return 0;
fprintf(stderr, "%s" "Continuing without compression.\n\n", err_buf);
do_compression = 0;
}
#endif
}
#ifdef HAVE_SETVBUF
if (outbuf_mode && !am_server) {
int mode = *(uchar *)outbuf_mode;
if (islower(mode))
mode = toupper(mode);
fflush(stdout); /* Just in case... */
switch (mode) {
case 'N': /* None */
case 'U': /* Unbuffered */
mode = _IONBF;
break;
case 'L': /* Line */
mode = _IOLBF;
break;
case 'B': /* Block */
case 'F': /* Full */
mode = _IOFBF;
break;
default:
snprintf(err_buf, sizeof err_buf,
"Invalid --outbuf setting -- specify N, L, or B.\n");
return 0;
}
setvbuf(stdout, (char *)NULL, mode, 0);
}
if (msgs2stderr) {
/* Make stderr line buffered for better sharing of the stream. */
fflush(stderr); /* Just in case... */
setvbuf(stderr, (char *)NULL, _IOLBF, 0);
}
#endif
set_output_verbosity(verbose, DEFAULT_PRIORITY);
if (do_stats) {
parse_output_words(info_words, info_levels,
verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
}
#ifdef ICONV_OPTION
if (iconv_opt && protect_args != 2) {
if (!am_server && strcmp(iconv_opt, "-") == 0)
iconv_opt = NULL;
else
need_unsorted_flist = 1;
}
if (refused_no_iconv && !iconv_opt) {
create_refuse_error(refused_no_iconv);
return 0;
}
#endif
if (fuzzy_basis > 1)
fuzzy_basis = basis_dir_cnt + 1;
if (protect_args == 1 && am_server)
return 1;
*argv_p = argv = poptGetArgs(pc);
*argc_p = argc = count_args(argv);
#ifndef SUPPORT_LINKS
if (preserve_links && !am_sender) {
snprintf(err_buf, sizeof err_buf,
"symlinks are not supported on this %s\n",
am_server ? "server" : "client");
return 0;
}
#endif
#ifndef SUPPORT_HARD_LINKS
if (preserve_hard_links) {
snprintf(err_buf, sizeof err_buf,
"hard links are not supported on this %s\n",
am_server ? "server" : "client");
return 0;
}
#endif
#ifdef SUPPORT_XATTRS
if (am_root < 0 && preserve_xattrs > 1) {
snprintf(err_buf, sizeof err_buf,
"--fake-super conflicts with -XX\n");
return 0;
}
#else
if (am_root < 0) {
snprintf(err_buf, sizeof err_buf,
"--fake-super requires an rsync with extended attributes enabled\n");
return 0;
}
#endif
if (block_size > MAX_BLOCK_SIZE) {
snprintf(err_buf, sizeof err_buf,
"--block-size=%lu is too large (max: %u)\n", block_size, MAX_BLOCK_SIZE);
return 0;
}
if (write_batch && read_batch) {
snprintf(err_buf, sizeof err_buf,
"--write-batch and --read-batch can not be used together\n");
return 0;
}
if (write_batch > 0 || read_batch) {
if (am_server) {
rprintf(FINFO,
"ignoring --%s-batch option sent to server\n",
write_batch ? "write" : "read");
/* We don't actually exit_cleanup(), so that we can
* still service older version clients that still send
* batch args to server. */
read_batch = write_batch = 0;
batch_name = NULL;
} else if (dry_run)
write_batch = 0;
} else if (write_batch < 0 && dry_run)
write_batch = 0;
if (read_batch && files_from) {
snprintf(err_buf, sizeof err_buf,
"--read-batch cannot be used with --files-from\n");
return 0;
}
if (read_batch && remove_source_files) {
snprintf(err_buf, sizeof err_buf,
"--read-batch cannot be used with --remove-%s-files\n",
remove_source_files == 1 ? "source" : "sent");
return 0;
}
if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
snprintf(err_buf, sizeof err_buf,
"the batch-file name must be %d characters or less.\n",
MAX_BATCH_NAME_LEN);
return 0;
}
if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
snprintf(err_buf, sizeof err_buf,
"the --temp-dir path is WAY too long.\n");
return 0;
}
if (max_delete < 0 && max_delete != INT_MIN) {
/* Negative numbers are treated as "no deletions". */
max_delete = 0;
}
if (compare_dest + copy_dest + link_dest > 1) {
snprintf(err_buf, sizeof err_buf,
"You may not mix --compare-dest, --copy-dest, and --link-dest.\n");
return 0;
}
if (files_from) {
if (recurse == 1) /* preserve recurse == 2 */
recurse = 0;
if (xfer_dirs < 0)
xfer_dirs = 1;
}
if (argc < 2 && !read_batch && !am_server)
list_only |= 1;
if (xfer_dirs >= 4) {
parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
recurse = xfer_dirs = 1;
} else if (recurse)
xfer_dirs = 1;
else if (xfer_dirs < 0)
xfer_dirs = list_only ? 1 : 0;
if (relative_paths < 0)
relative_paths = files_from? 1 : 0;
if (!relative_paths)
implied_dirs = 0;
if (delete_before + !!delete_during + delete_after > 1) {
snprintf(err_buf, sizeof err_buf,
"You may not combine multiple --delete-WHEN options.\n");
return 0;
}
if (delete_before || delete_during || delete_after)
delete_mode = 1;
else if (delete_mode || delete_excluded) {
/* Only choose now between before & during if one is refused. */
if (refused_delete_before) {
if (!refused_delete_during)
delete_during = 1;
else {
create_refuse_error(refused_delete_before);
return 0;
}
} else if (refused_delete_during)
delete_before = 1;
delete_mode = 1;
}
if (!xfer_dirs && delete_mode) {
snprintf(err_buf, sizeof err_buf,
"--delete does not work without --recursive (-r) or --dirs (-d).\n");
return 0;
}
if (missing_args == 3) /* simplify if both options were specified */
missing_args = 2;
if (refused_delete && (delete_mode || missing_args == 2)) {
create_refuse_error(refused_delete);
return 0;
}
if (remove_source_files) {
/* We only want to infer this refusal of --remove-source-files
* via the refusal of "delete", not any of the "delete-FOO"
* options. */
if (refused_delete && am_sender) {
create_refuse_error(refused_delete);
return 0;
}
need_messages_from_generator = 1;
}
if (munge_symlinks && !am_daemon) {
STRUCT_STAT st;
char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
prefix);
exit_cleanup(RERR_UNSUPPORTED);
}
}
if (sanitize_paths) {
int i;
for (i = argc; i-- > 0; )
argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
if (tmpdir)
tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
if (backup_dir)
backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
}
if (daemon_filter_list.head && !am_sender) {
filter_rule_list *elp = &daemon_filter_list;
if (tmpdir) {
char *dir;
if (!*tmpdir)
goto options_rejected;
dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
if (check_filter(elp, FLOG, dir, 1) < 0)
goto options_rejected;
}
if (backup_dir) {
char *dir;
if (!*backup_dir)
goto options_rejected;
dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
if (check_filter(elp, FLOG, dir, 1) < 0)
goto options_rejected;
}
}
if (!backup_suffix)
backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
backup_suffix_len = strlen(backup_suffix);
if (strchr(backup_suffix, '/') != NULL) {
snprintf(err_buf, sizeof err_buf,
"--suffix cannot contain slashes: %s\n",
backup_suffix);
return 0;
}
if (backup_dir) {
size_t len;
while (*backup_dir == '.' && backup_dir[1] == '/')
backup_dir += 2;
if (*backup_dir == '.' && backup_dir[1] == '\0')
backup_dir++;
len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
if (len > sizeof backup_dir_buf - 128) {
snprintf(err_buf, sizeof err_buf,
"the --backup-dir path is WAY too long.\n");
return 0;
}
backup_dir_len = (int)len;
if (!backup_dir_len) {
backup_dir_len = -1;
backup_dir = NULL;
} else if (backup_dir_buf[backup_dir_len - 1] != '/') {
backup_dir_buf[backup_dir_len++] = '/';
backup_dir_buf[backup_dir_len] = '\0';
}
backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
}
if (backup_dir) {
/* No need for a suffix or a protect rule. */
} else if (!backup_suffix_len && (!am_server || !am_sender)) {
snprintf(err_buf, sizeof err_buf,
"--suffix cannot be empty %s\n", backup_dir_len < 0
? "when --backup-dir is the same as the dest dir"
: "without a --backup-dir");
return 0;
} else if (make_backups && delete_mode && !delete_excluded && !am_server) {
snprintf(backup_dir_buf, sizeof backup_dir_buf,
"P *%s", backup_suffix);
parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
}
if (preserve_times) {
preserve_times = PRESERVE_FILE_TIMES;
if (!omit_dir_times)
preserve_times |= PRESERVE_DIR_TIMES;
#ifdef CAN_SET_SYMLINK_TIMES
if (!omit_link_times)
preserve_times |= PRESERVE_LINK_TIMES;
#endif
}
if (make_backups && !backup_dir) {
omit_dir_times = 0; /* Implied, so avoid -O to sender. */
preserve_times &= ~PRESERVE_DIR_TIMES;
}
if (stdout_format) {
if (am_server && log_format_has(stdout_format, 'I'))
stdout_format_has_i = 2;
else if (log_format_has(stdout_format, 'i'))
stdout_format_has_i = itemize_changes | 1;
if (!log_format_has(stdout_format, 'b')
&& !log_format_has(stdout_format, 'c')
&& !log_format_has(stdout_format, 'C'))
log_before_transfer = !am_server;
} else if (itemize_changes) {
stdout_format = "%i %n%L";
stdout_format_has_i = itemize_changes;
log_before_transfer = !am_server;
}
if (do_progress && !am_server) {
if (!log_before_transfer && INFO_EQ(NAME, 0))
parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
}
if (dry_run)
do_xfers = 0;
set_io_timeout(io_timeout);
if (INFO_GTE(NAME, 1) && !stdout_format) {
stdout_format = "%n%L";
log_before_transfer = !am_server;
}
if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
stdout_format_has_o_or_i = 1;
if (logfile_name && !am_daemon) {
if (!logfile_format) {
logfile_format = "%i %n%L";
logfile_format_has_i = logfile_format_has_o_or_i = 1;
} else {
if (log_format_has(logfile_format, 'i'))
logfile_format_has_i = 1;
if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
logfile_format_has_o_or_i = 1;
}
log_init(0);
} else if (!am_daemon)
logfile_format = NULL;
if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
bwlimit = daemon_bwlimit;
if (bwlimit) {
bwlimit_writemax = (size_t)bwlimit * 128;
if (bwlimit_writemax < 512)
bwlimit_writemax = 512;
}
if (sparse_files && inplace) {
/* Note: we don't check for this below, because --append is
* OK with --sparse (as long as redos are handled right). */
snprintf(err_buf, sizeof err_buf,
"--sparse cannot be used with --inplace\n");
return 0;
}
if (append_mode) {
if (whole_file > 0) {
snprintf(err_buf, sizeof err_buf,
"--append cannot be used with --whole-file\n");
return 0;
}
if (refused_inplace) {
create_refuse_error(refused_inplace);
return 0;
}
inplace = 1;
}
if (delay_updates && !partial_dir)
partial_dir = tmp_partialdir;
if (inplace) {
#ifdef HAVE_FTRUNCATE
if (partial_dir) {
snprintf(err_buf, sizeof err_buf,
"--%s cannot be used with --%s\n",
append_mode ? "append" : "inplace",
delay_updates ? "delay-updates" : "partial-dir");
return 0;
}
/* --inplace implies --partial for refusal purposes, but we
* clear the keep_partial flag for internal logic purposes. */
if (refused_partial) {
create_refuse_error(refused_partial);
return 0;
}
keep_partial = 0;
#else
snprintf(err_buf, sizeof err_buf,
"--%s is not supported on this %s\n",
append_mode ? "append" : "inplace",
am_server ? "server" : "client");
return 0;
#endif
} else {
if (keep_partial && !partial_dir && !am_server) {
if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
partial_dir = strdup(arg);
}
if (partial_dir) {
if (*partial_dir)
clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
if (!*partial_dir || strcmp(partial_dir, ".") == 0)
partial_dir = NULL;
if (!partial_dir && refused_partial) {
create_refuse_error(refused_partial);
return 0;
}
keep_partial = 1;
}
}
if (files_from) {
char *h, *p;
int q;
if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
usage(FERROR);
exit_cleanup(RERR_SYNTAX);
}
if (strcmp(files_from, "-") == 0) {
filesfrom_fd = 0;
if (am_server)
filesfrom_host = ""; /* reading from socket */
} else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
if (am_server) {
snprintf(err_buf, sizeof err_buf,
"The --files-from sent to the server cannot specify a host.\n");
return 0;
}
files_from = p;
filesfrom_host = h;
if (strcmp(files_from, "-") == 0) {
snprintf(err_buf, sizeof err_buf,
"Invalid --files-from remote filename\n");
return 0;
}
} else {
if (sanitize_paths)
files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
if (daemon_filter_list.head) {
char *dir;
if (!*files_from)
goto options_rejected;
dir = files_from + (*files_from == '/' ? module_dirlen : 0);
clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
goto options_rejected;
}
filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
if (filesfrom_fd < 0) {
snprintf(err_buf, sizeof err_buf,
"failed to open files-from file %s: %s\n",
files_from, strerror(errno));
return 0;
}
}
}
am_starting_up = 0;
return 1;
options_rejected:
snprintf(err_buf, sizeof err_buf,
"Your options have been rejected by the server.\n");
return 0;
}
/**
* Construct a filtered list of options to pass through from the
* client to the server.
*
* This involves setting options that will tell the server how to
* behave, and also filtering out options that are processed only
* locally.
**/
void server_options(char **args, int *argc_p)
{
static char argstr[64];
int ac = *argc_p;
uchar where;
char *arg;
int i, x;
/* This should always remain first on the server's command-line. */
args[ac++] = "--server";
if (daemon_over_rsh > 0) {
args[ac++] = "--daemon";
*argc_p = ac;
/* if we're passing --daemon, we're done */
return;
}
if (!am_sender)
args[ac++] = "--sender";
x = 1;
argstr[0] = '-';
if (protect_args)
argstr[x++] = 's';
for (i = 0; i < verbose; i++)
argstr[x++] = 'v';
/* the -q option is intentionally left out */
if (make_backups)
argstr[x++] = 'b';
if (update_only)
argstr[x++] = 'u';
if (!do_xfers) /* Note: NOT "dry_run"! */
argstr[x++] = 'n';
if (preserve_links)
argstr[x++] = 'l';
if ((xfer_dirs >= 2 && xfer_dirs < 4)
|| (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
argstr[x++] = 'd';
if (am_sender) {
if (keep_dirlinks)
argstr[x++] = 'K';
if (prune_empty_dirs)
argstr[x++] = 'm';
if (omit_dir_times)
argstr[x++] = 'O';
if (omit_link_times)
argstr[x++] = 'J';
if (fuzzy_basis) {
argstr[x++] = 'y';
if (fuzzy_basis > 1)
argstr[x++] = 'y';
}
} else {
if (copy_links)
argstr[x++] = 'L';
if (copy_dirlinks)
argstr[x++] = 'k';
}
if (whole_file > 0)
argstr[x++] = 'W';
/* We don't need to send --no-whole-file, because it's the
* default for remote transfers, and in any case old versions
* of rsync will not understand it. */
if (preserve_hard_links) {
argstr[x++] = 'H';
if (preserve_hard_links > 1)
argstr[x++] = 'H';
}
if (preserve_uid)
argstr[x++] = 'o';
if (preserve_gid)
argstr[x++] = 'g';
if (preserve_devices) /* ignore preserve_specials here */
argstr[x++] = 'D';
if (preserve_times)
argstr[x++] = 't';
if (preserve_perms)
argstr[x++] = 'p';
else if (preserve_executability && am_sender)
argstr[x++] = 'E';
#ifdef SUPPORT_ACLS
if (preserve_acls)
argstr[x++] = 'A';
#endif
#ifdef SUPPORT_XATTRS
if (preserve_xattrs) {
argstr[x++] = 'X';
if (preserve_xattrs > 1)
argstr[x++] = 'X';
}
#endif
if (recurse)
argstr[x++] = 'r';
if (always_checksum)
argstr[x++] = 'c';
if (cvs_exclude)
argstr[x++] = 'C';
if (ignore_times)
argstr[x++] = 'I';
if (relative_paths)
argstr[x++] = 'R';
if (one_file_system) {
argstr[x++] = 'x';
if (one_file_system > 1)
argstr[x++] = 'x';
}
if (sparse_files)
argstr[x++] = 'S';
if (do_compression == 1)
argstr[x++] = 'z';
set_allow_inc_recurse();
/* We don't really know the actual protocol_version at this point,
* but checking the pre-negotiated value allows the user to use a
* --protocol=29 override to avoid the use of this -eFLAGS opt. */
if (protocol_version >= 30) {
/* We make use of the -e option to let the server know about
* any pre-release protocol version && some behavior flags. */
argstr[x++] = 'e';
#if SUBPROTOCOL_VERSION != 0
if (protocol_version == PROTOCOL_VERSION) {
x += snprintf(argstr+x, sizeof argstr - x,
"%d.%d",
PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
} else
#endif
argstr[x++] = '.';
if (allow_inc_recurse)
argstr[x++] = 'i';
#ifdef CAN_SET_SYMLINK_TIMES
argstr[x++] = 'L'; /* symlink time-setting support */
#endif
#ifdef ICONV_OPTION
argstr[x++] = 's'; /* symlink iconv translation support */
#endif
argstr[x++] = 'f'; /* flist I/O-error safety support */
argstr[x++] = 'x'; /* xattr hardlink optimization not desired */
}
if (x >= (int)sizeof argstr) { /* Not possible... */
rprintf(FERROR, "argstr overflow in server_options().\n");
exit_cleanup(RERR_MALLOC);
}
argstr[x] = '\0';
if (x > 1)
args[ac++] = argstr;
#ifdef ICONV_OPTION
if (iconv_opt) {
char *set = strchr(iconv_opt, ',');
if (set)
set++;
else
set = iconv_opt;
if (asprintf(&arg, "--iconv=%s", set) < 0)
goto oom;
args[ac++] = arg;
}
#endif
if (protect_args && !local_server) /* unprotected args stop here */
args[ac++] = NULL;
if (list_only > 1)
args[ac++] = "--list-only";
/* This makes sure that the remote rsync can handle deleting with -d
* sans -r because the --no-r option was added at the same time. */
if (xfer_dirs && !recurse && delete_mode && am_sender)
args[ac++] = "--no-r";
if (do_compression && def_compress_level != Z_DEFAULT_COMPRESSION) {
if (asprintf(&arg, "--compress-level=%d", def_compress_level) < 0)
goto oom;
args[ac++] = arg;
}
if (preserve_devices) {
/* Note: sending "--devices" would not be backward-compatible. */
if (!preserve_specials)
args[ac++] = "--no-specials"; /* -D is already set. */
} else if (preserve_specials)
args[ac++] = "--specials";
/* The server side doesn't use our log-format, but in certain
* circumstances they need to know a little about the option. */
if (stdout_format && am_sender) {
/* Use --log-format, not --out-format, for compatibility. */
if (stdout_format_has_i > 1)
args[ac++] = "--log-format=%i%I";
else if (stdout_format_has_i)
args[ac++] = "--log-format=%i";
else if (stdout_format_has_o_or_i)
args[ac++] = "--log-format=%o";
else if (!verbose)
args[ac++] = "--log-format=X";
}
if (block_size) {
if (asprintf(&arg, "-B%lu", block_size) < 0)
goto oom;
args[ac++] = arg;
}
if (io_timeout) {
if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
goto oom;
args[ac++] = arg;
}
if (bwlimit) {
if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
goto oom;
args[ac++] = arg;
}
if (backup_dir) {
args[ac++] = "--backup-dir";
args[ac++] = backup_dir;
}
/* Only send --suffix if it specifies a non-default value. */
if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
/* We use the following syntax to avoid weirdness with '~'. */
if (asprintf(&arg, "--suffix=%s", backup_suffix) < 0)
goto oom;
args[ac++] = arg;
}
if (am_sender) {
if (max_delete > 0) {
if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
goto oom;
args[ac++] = arg;
} else if (max_delete == 0)
args[ac++] = "--max-delete=-1";
if (min_size >= 0) {
args[ac++] = "--min-size";
args[ac++] = min_size_arg;
}
if (max_size >= 0) {
args[ac++] = "--max-size";
args[ac++] = max_size_arg;
}
if (delete_before)
args[ac++] = "--delete-before";
else if (delete_during == 2)
args[ac++] = "--delete-delay";
else if (delete_during)
args[ac++] = "--delete-during";
else if (delete_after)
args[ac++] = "--delete-after";
else if (delete_mode && !delete_excluded)
args[ac++] = "--delete";
if (delete_excluded)
args[ac++] = "--delete-excluded";
if (force_delete)
args[ac++] = "--force";
if (write_batch < 0)
args[ac++] = "--only-write-batch=X";
if (am_root > 1)
args[ac++] = "--super";
if (size_only)
args[ac++] = "--size-only";
if (do_stats)
args[ac++] = "--stats";
} else {
if (skip_compress) {
if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
goto oom;
args[ac++] = arg;
}
}
/* --delete-missing-args needs the cooperation of both sides, but
* the sender can handle --ignore-missing-args by itself. */
if (missing_args == 2)
args[ac++] = "--delete-missing-args";
else if (missing_args == 1 && !am_sender)
args[ac++] = "--ignore-missing-args";
if (modify_window_set) {
if (asprintf(&arg, "--modify-window=%d", modify_window) < 0)
goto oom;
args[ac++] = arg;
}
if (checksum_seed) {
if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
goto oom;
args[ac++] = arg;
}
if (partial_dir && am_sender) {
if (partial_dir != tmp_partialdir) {
args[ac++] = "--partial-dir";
args[ac++] = partial_dir;
}
if (delay_updates)
args[ac++] = "--delay-updates";
} else if (keep_partial && am_sender)
args[ac++] = "--partial";
if (ignore_errors)
args[ac++] = "--ignore-errors";
if (copy_unsafe_links)
args[ac++] = "--copy-unsafe-links";
if (safe_symlinks)
args[ac++] = "--safe-links";
if (numeric_ids)
args[ac++] = "--numeric-ids";
if (use_qsort)
args[ac++] = "--use-qsort";
if (am_sender) {
if (usermap) {
if (asprintf(&arg, "--usermap=%s", usermap) < 0)
goto oom;
args[ac++] = arg;
}
if (groupmap) {
if (asprintf(&arg, "--groupmap=%s", groupmap) < 0)
goto oom;
args[ac++] = arg;
}
if (ignore_existing)
args[ac++] = "--ignore-existing";
/* Backward compatibility: send --existing, not --ignore-non-existing. */
if (ignore_non_existing)
args[ac++] = "--existing";
if (tmpdir) {
args[ac++] = "--temp-dir";
args[ac++] = tmpdir;
}
if (basis_dir[0]) {
/* the server only needs this option if it is not the sender,
* and it may be an older version that doesn't know this
* option, so don't send it if client is the sender.
*/
for (i = 0; i < basis_dir_cnt; i++) {
args[ac++] = dest_option;
args[ac++] = basis_dir[i];
}
}
}
/* What flags do we need to send to the other side? */
where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
arg = make_output_option(info_words, info_levels, where);
if (arg)
args[ac++] = arg;
arg = make_output_option(debug_words, debug_levels, where);
if (arg)
args[ac++] = arg;
if (append_mode) {
if (append_mode > 1)
args[ac++] = "--append";
args[ac++] = "--append";
} else if (inplace)
args[ac++] = "--inplace";
if (files_from && (!am_sender || filesfrom_host)) {
if (filesfrom_host) {
args[ac++] = "--files-from";
args[ac++] = files_from;
if (eol_nulls)
args[ac++] = "--from0";
} else {
args[ac++] = "--files-from=-";
args[ac++] = "--from0";
}
if (!relative_paths)
args[ac++] = "--no-relative";
}
/* It's OK that this checks the upper-bound of the protocol_version. */
if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
args[ac++] = "--no-implied-dirs";
if (remove_source_files == 1)
args[ac++] = "--remove-source-files";
else if (remove_source_files)
args[ac++] = "--remove-sent-files";
if (preallocate_files && am_sender)
args[ac++] = "--preallocate";
if (ac > MAX_SERVER_ARGS) { /* Not possible... */
rprintf(FERROR, "argc overflow in server_options().\n");
exit_cleanup(RERR_MALLOC);
}
if (do_compression > 1)
args[ac++] = "--new-compress";
if (remote_option_cnt) {
int j;
if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
rprintf(FERROR, "too many remote options specified.\n");
exit_cleanup(RERR_SYNTAX);
}
for (j = 1; j <= remote_option_cnt; j++)
args[ac++] = (char*)remote_options[j];
}
*argc_p = ac;
return;
oom:
out_of_memory("server_options");
}
/* If str points to a valid hostspec, return allocated memory containing the
* [USER@]HOST part of the string, and set the path_start_ptr to the part of
* the string after the host part. Otherwise, return NULL. If port_ptr is
* non-NULL, we must be parsing an rsync:// URL hostname, and we will set
* *port_ptr if a port number is found. Note that IPv6 IPs will have their
* (required for parsing) [ and ] chars elided from the returned string. */
static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
{
char *s, *host_start = str;
int hostlen = 0, userlen = 0;
char *ret;
for (s = str; ; s++) {
if (!*s) {
/* It is only OK if we run out of string with rsync:// */
if (!port_ptr)
return NULL;
if (!hostlen)
hostlen = s - host_start;
break;
}
if (*s == ':' || *s == '/') {
if (!hostlen)
hostlen = s - host_start;
if (*s++ == '/') {
if (!port_ptr)
return NULL;
} else if (port_ptr) {
*port_ptr = atoi(s);
while (isDigit(s)) s++;
if (*s && *s++ != '/')
return NULL;
}
break;
}
if (*s == '@') {
userlen = s - str + 1;
host_start = s + 1;
} else if (*s == '[') {
if (s != host_start++)
return NULL;
while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
hostlen = s - host_start;
if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
return NULL;
}
}
*path_start_ptr = s;
ret = new_array(char, userlen + hostlen + 1);
if (userlen)
strlcpy(ret, str, userlen + 1);
strlcpy(ret + userlen, host_start, hostlen + 1);
return ret;
}
/* Look for a HOST specfication of the form "HOST:PATH", "HOST::PATH", or
* "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
* memory with the HOST. If a daemon-accessing spec was specified, the value
* of *port_ptr will contain a non-0 port number, otherwise it will be set to
* 0. The return value is a pointer to the PATH. Note that the HOST spec can
* be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
* "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
{
char *path;
if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
*host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
if (*host_ptr) {
if (!*port_ptr)
*port_ptr = RSYNC_PORT;
return path;
}
}
*host_ptr = parse_hostspec(s, &path, NULL);
if (!*host_ptr)
return NULL;
if (*path == ':') {
if (port_ptr && !*port_ptr)
*port_ptr = RSYNC_PORT;
return path + 1;
}
if (port_ptr)
*port_ptr = 0;
return path;
}
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