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gerrit.witaqua.org / external_rsync / cdb7e988d31d769ecfc20633467952528e0e5707 / . / options.c
blob: d38bbe8db344fceb3f068b9f8b35067ec74d8624 [file] [log] [blame]
/*
* 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) 2002-2022 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, visit the http://fsf.org website.
*/
#include "rsync.h"
#include "itypes.h"
#include "ifuncs.h"
#include <popt.h>
extern int module_id;
extern int local_server;
extern int sanitize_paths;
extern int trust_sender_args;
extern int trust_sender_filter;
extern unsigned int module_dirlen;
extern filter_rule_list filter_list;
extern filter_rule_list daemon_filter_list;
int make_backups = 0;
/**
* If 1, send the whole file as literal data rather than trying to
* create an incremental diff.
*
* If -1, then look at whether we're local or remote and go by that.
*
* @sa disable_deltas_p()
**/
int whole_file = -1;
int append_mode = 0;
int keep_dirlinks = 0;
int copy_dirlinks = 0;
int copy_links = 0;
int copy_devices = 0;
int write_devices = 0;
int preserve_links = 0;
int preserve_hard_links = 0;
int preserve_acls = 0;
int preserve_xattrs = 0;
int preserve_perms = 0;
int preserve_executability = 0;
int preserve_devices = 0;
int preserve_specials = 0;
int preserve_uid = 0;
int preserve_gid = 0;
int preserve_mtimes = 0;
int preserve_atimes = 0;
int preserve_crtimes = 0;
int omit_dir_times = 0;
int omit_link_times = 0;
int trust_sender = 0;
int update_only = 0;
int open_noatime = 0;
int cvs_exclude = 0;
int dry_run = 0;
int do_xfers = 1;
int do_fsync = 0;
int ignore_times = 0;
int delete_mode = 0;
int delete_during = 0;
int delete_before = 0;
int delete_after = 0;
int delete_excluded = 0;
int remove_source_files = 0;
int one_file_system = 0;
int protocol_version = PROTOCOL_VERSION;
int sparse_files = 0;
int preallocate_files = 0;
int do_compression = 0;
int do_compression_level = CLVL_NOT_SPECIFIED;
int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
int am_server = 0;
int am_sender = 0;
int am_starting_up = 1;
int relative_paths = -1;
int implied_dirs = 1;
int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
int numeric_ids = 0;
int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */
int saw_stderr_opt = 0;
int allow_8bit_chars = 0;
int force_delete = 0;
int io_timeout = 0;
int prune_empty_dirs = 0;
int use_qsort = 0;
char *files_from = NULL;
int filesfrom_fd = -1;
char *filesfrom_host = NULL;
int eol_nulls = 0;
int protect_args = -1;
int old_style_args = -1;
int human_readable = 1;
int recurse = 0;
int mkpath_dest_arg = 0;
int allow_inc_recurse = 1;
int xfer_dirs = -1;
int am_daemon = 0;
int connect_timeout = 0;
int keep_partial = 0;
int safe_symlinks = 0;
int copy_unsafe_links = 0;
int munge_symlinks = 0;
int size_only = 0;
int daemon_bwlimit = 0;
int bwlimit = 0;
int fuzzy_basis = 0;
size_t bwlimit_writemax = 0;
int ignore_existing = 0;
int ignore_non_existing = 0;
int need_messages_from_generator = 0;
int max_delete = INT_MIN;
OFF_T max_size = -1;
OFF_T min_size = -1;
int ignore_errors = 0;
int modify_window = 0;
int blocking_io = -1;
int checksum_seed = 0;
int inplace = 0;
int delay_updates = 0;
int32 block_size = 0;
time_t stop_at_utime = 0;
char *skip_compress = NULL;
char *copy_as = NULL;
item_list dparam_list = EMPTY_ITEM_LIST;
/** Network address family. **/
int default_af_hint
#ifdef INET6
= 0; /* Any protocol */
#else
= AF_INET; /* Must use IPv4 */
# ifdef AF_INET6
# undef AF_INET6
# endif
# define AF_INET6 AF_INET /* make -6 option a no-op */
#endif
/** Do not go into the background when run as --daemon. Good
* for debugging and required for running as a service on W32,
* or under Unix process-monitors. **/
int no_detach
#if defined _WIN32 || defined __WIN32__
= 1;
#else
= 0;
#endif
int write_batch = 0;
int read_batch = 0;
int backup_dir_len = 0;
int backup_suffix_len;
unsigned int backup_dir_remainder;
char *backup_suffix = NULL;
char *tmpdir = NULL;
char *partial_dir = NULL;
char *basis_dir[MAX_BASIS_DIRS+1];
char *config_file = NULL;
char *shell_cmd = NULL;
char *logfile_name = NULL;
char *logfile_format = NULL;
char *stdout_format = NULL;
char *password_file = NULL;
char *early_input_file = NULL;
char *rsync_path = RSYNC_PATH;
char *backup_dir = NULL;
char backup_dir_buf[MAXPATHLEN];
char *sockopts = NULL;
char *usermap = NULL;
char *groupmap = NULL;
int rsync_port = 0;
int alt_dest_type = 0;
int basis_dir_cnt = 0;
#define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024)
size_t max_alloc = DEFAULT_MAX_ALLOC;
char *max_alloc_arg;
static int version_opt_cnt = 0;
static int remote_option_alloc = 0;
int remote_option_cnt = 0;
const char **remote_options = NULL;
const char *checksum_choice = NULL;
const char *compress_choice = NULL;
int quiet = 0;
int output_motd = 1;
int log_before_transfer = 0;
int stdout_format_has_i = 0;
int stdout_format_has_o_or_i = 0;
int logfile_format_has_i = 0;
int logfile_format_has_o_or_i = 0;
int always_checksum = 0;
int list_only = 0;
#define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
char *batch_name = NULL;
int need_unsorted_flist = 0;
char *iconv_opt =
#ifdef ICONV_OPTION
ICONV_OPTION;
#else
NULL;
#endif
struct chmod_mode_struct *chmod_modes = NULL;
static const char *debug_verbosity[] = {
/*0*/ NULL,
/*1*/ NULL,
/*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
/*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
/*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
/*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
};
#define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
static const char *info_verbosity[1+MAX_VERBOSITY] = {
/*0*/ "NONREG",
/*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
/*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
};
#define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
#define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
#define HELP_PRIORITY 1 /* The help output uses this level. */
#define USER_PRIORITY 2 /* User-specified via --info or --debug */
#define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
#define W_CLI (1<<0) /* client side */
#define W_SRV (1<<1) /* server side */
#define W_SND (1<<2) /* sending side */
#define W_REC (1<<3) /* receiving side */
struct output_struct {
char *name; /* The name of the info/debug flag. */
char *help; /* The description of the info/debug flag. */
uchar namelen; /* The length of the name string. */
uchar flag; /* The flag's value, for consistency check. */
uchar where; /* Bits indicating where the flag is used. */
uchar priority; /* See *_PRIORITY defines. */
};
#define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
static struct output_struct info_words[COUNT_INFO+1] = {
INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
INFO_WORD(NONREG, W_REC, "Mention skipped non-regular files (default 1, 0 disables)"),
INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
INFO_WORD(SKIP, W_REC, "Mention files skipped due to transfer overrides (levels 1-2)"),
INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
{ NULL, "--info", 0, 0, 0, 0 }
};
#define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
static struct output_struct debug_words[COUNT_DEBUG+1] = {
DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-3)"),
DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
{ NULL, "--debug", 0, 0, 0, 0 }
};
static int verbose = 0;
static int do_stats = 0;
static int do_progress = 0;
static int daemon_opt; /* sets am_daemon after option error-reporting */
static int F_option_cnt = 0;
static int modify_window_set;
static int itemize_changes = 0;
static int refused_delete, refused_archive_part, refused_compress;
static int refused_partial, refused_progress, refused_delete_before;
static int refused_delete_during;
static int refused_inplace, refused_no_iconv;
static BOOL usermap_via_chown, groupmap_via_chown;
static char *outbuf_mode;
static char *bwlimit_arg, *max_size_arg, *min_size_arg;
static char tmp_partialdir[] = ".~tmp~";
/** Local address to bind. As a character string because it's
* interpreted by the IPv6 layer: should be a numeric IP4 or IP6
* address, or a hostname. **/
char *bind_address;
static void output_item_help(struct output_struct *words);
/* This constructs a string that represents all the options set for either
* the --info or --debug setting, skipping any implied options (by -v, etc.).
* This is used both when conveying the user's options to the server, and
* when the help output wants to tell the user what options are implied. */
static char *make_output_option(struct output_struct *words, short *levels, uchar where)
{
char *str = words == info_words ? "--info=" : "--debug=";
int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
char *buf;
memset(counts, 0, sizeof counts);
for (j = 0; words[j].name; j++) {
if (words[j].flag != j) {
rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
words == info_words ? "INFO_" : "DEBUG_",
words[j].name, words[j].flag, j);
exit_cleanup(RERR_UNSUPPORTED);
}
if (!(words[j].where & where))
continue;
if (words[j].priority == DEFAULT_PRIORITY) {
/* Implied items don't need to be mentioned. */
skipped++;
continue;
}
len += len ? 1 : strlen(str);
len += strlen(words[j].name);
len += levels[j] == 1 ? 0 : 1;
if (words[j].priority == HELP_PRIORITY)
continue; /* no abbreviating for help */
assert(levels[j] <= MAX_OUT_LEVEL);
if (++counts[levels[j]] > max) {
/* Determine which level has the most items. */
lev = levels[j];
max = counts[lev];
}
}
/* Sanity check the COUNT_* define against the length of the table. */
if (j != word_count) {
rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
j, word_count);
exit_cleanup(RERR_UNSUPPORTED);
}
if (!len)
return NULL;
len++;
buf = new_array(char, len);
pos = 0;
if (skipped || max < 5)
lev = -1;
else {
if (lev == 0)
pos += snprintf(buf, len, "%sNONE", str);
else if (lev == 1)
pos += snprintf(buf, len, "%sALL", str);
else
pos += snprintf(buf, len, "%sALL%d", str, lev);
}
for (j = 0; words[j].name && pos < len; j++) {
if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
continue;
if (pos)
buf[pos++] = ',';
else
pos += strlcpy(buf+pos, str, len-pos);
if (pos < len)
pos += strlcpy(buf+pos, words[j].name, len-pos);
/* Level 1 is implied by the name alone. */
if (levels[j] != 1 && pos < len)
buf[pos++] = '0' + levels[j];
}
buf[pos] = '\0';
return buf;
}
static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
{
const char *s;
int j, len, lev;
for ( ; str; str = s) {
if ((s = strchr(str, ',')) != NULL)
len = s++ - str;
else
len = strlen(str);
if (!len)
continue;
if (!isDigit(str)) {
while (len && isDigit(str+len-1))
len--;
}
lev = isDigit(str+len) ? atoi(str+len) : 1;
if (lev > MAX_OUT_LEVEL)
lev = MAX_OUT_LEVEL;
if (len == 4 && strncasecmp(str, "help", 4) == 0) {
output_item_help(words);
exit_cleanup(0);
}
if (len == 4 && strncasecmp(str, "none", 4) == 0)
len = lev = 0;
else if (len == 3 && strncasecmp(str, "all", 3) == 0)
len = 0;
for (j = 0; words[j].name; j++) {
if (!len
|| (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
if (priority >= words[j].priority) {
words[j].priority = priority;
levels[j] = lev;
}
if (len)
break;
}
}
if (len && !words[j].name && !am_server) {
rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
words[j].help, len, str);
exit_cleanup(RERR_SYNTAX);
}
}
}
/* Tell the user what all the info or debug flags mean. */
static void output_item_help(struct output_struct *words)
{
short *levels = words == info_words ? info_levels : debug_levels;
const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
char buf[128], *opt, *fmt = "%-10s %s\n";
int j;
reset_output_levels();
rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
rprintf(FINFO, "\n");
for (j = 0; words[j].name; j++)
rprintf(FINFO, fmt, words[j].name, words[j].help);
rprintf(FINFO, "\n");
snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
words[j].help, MAX_OUT_LEVEL);
rprintf(FINFO, fmt, "ALL", buf);
snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
words[j].help);
rprintf(FINFO, fmt, "NONE", buf);
rprintf(FINFO, fmt, "HELP", "Output this help message");
rprintf(FINFO, "\n");
rprintf(FINFO, "Options added at each level of verbosity:\n");
for (j = 0; j <= MAX_VERBOSITY; j++) {
parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
if (opt) {
rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
free(opt);
}
reset_output_levels();
}
}
/* The --verbose option now sets info+debug flags. */
static void set_output_verbosity(int level, uchar priority)
{
int j;
if (level > MAX_VERBOSITY)
level = MAX_VERBOSITY;
for (j = 0; j <= level; j++) {
parse_output_words(info_words, info_levels, info_verbosity[j], priority);
parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
}
}
/* Limit the info+debug flag levels given a verbose-option level limit. */
void limit_output_verbosity(int level)
{
short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
int j;
if (level > MAX_VERBOSITY)
return;
memset(info_limits, 0, sizeof info_limits);
memset(debug_limits, 0, sizeof debug_limits);
/* Compute the level limits in the above arrays. */
for (j = 0; j <= level; j++) {
parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
}
for (j = 0; j < COUNT_INFO; j++) {
if (info_levels[j] > info_limits[j])
info_levels[j] = info_limits[j];
}
for (j = 0; j < COUNT_DEBUG; j++) {
if (debug_levels[j] > debug_limits[j])
debug_levels[j] = debug_limits[j];
}
}
void reset_output_levels(void)
{
int j;
memset(info_levels, 0, sizeof info_levels);
memset(debug_levels, 0, sizeof debug_levels);
for (j = 0; j < COUNT_INFO; j++)
info_words[j].priority = DEFAULT_PRIORITY;
for (j = 0; j < COUNT_DEBUG; j++)
debug_words[j].priority = DEFAULT_PRIORITY;
}
void negate_output_levels(void)
{
int j;
for (j = 0; j < COUNT_INFO; j++)
info_levels[j] *= -1;
for (j = 0; j < COUNT_DEBUG; j++)
debug_levels[j] *= -1;
}
enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE,
OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR,
OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS, OPT_OLD_ARGS,
OPT_STOP_AFTER, OPT_STOP_AT,
OPT_REFUSED_BASE = 9000};
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
{"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0},
{"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
{"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
{"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
{"stderr", 0, POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 },
{"msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 1, 0, 0 },
{"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 },
{"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
{"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
{"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
{"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
{"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
{"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
{"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
{"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
{"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
{"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
{"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
{"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
{"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
{"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
{"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
{"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
{"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
{"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
{"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
{"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
{"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
{"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
{"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
{"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
{"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
{"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
{"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
{"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
{"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
{"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
{"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
{"times", 't', POPT_ARG_VAL, &preserve_mtimes, 1, 0, 0 },
{"no-times", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
{"no-t", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
{"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 },
{"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
{"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
{"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 },
{"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 },
{"crtimes", 'N', POPT_ARG_VAL, &preserve_crtimes, 1, 0, 0 },
{"no-crtimes", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
{"no-N", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
{"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
{"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
{"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
{"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
{"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
{"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
{"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
{"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
{"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
{"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
{"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
{"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
{"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
{"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
{"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
{"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
{0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
{"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
{"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
{"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
{"copy-devices", 0, POPT_ARG_NONE, &copy_devices, 0, 0, 0 },
{"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
{"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
{"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
{"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
{"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
{"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"copy-links", 'L', POPT_ARG_NONE, &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 },
{"max-alloc", 0, POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 },
{"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
{"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
{"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
{"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
{"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
{"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
{"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
{"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
{"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
{"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
{"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
{"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
{"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
{"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
{"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
{"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
{"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
{"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
{"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
{"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
{"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
{"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
{"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
{"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
{"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
{0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
{"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
{"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
{"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
{"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
{"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
{"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
{"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
{"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
{"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
{"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
{"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
{"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
{"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
{"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
{"block-size", 'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 0, 0 },
{"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
{"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
{"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
{"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
{"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
{"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
{"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
{"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 },
{"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 },
{"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
{"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
{"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
{"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
{"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
{"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
{"zl", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
{0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
{"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
{"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
{"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
{"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
{"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
{"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
{"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
{"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
{"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
{"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
{"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
{"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
{"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
{"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
{"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
{"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
{"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
{"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
{"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
{"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
{"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
{"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
{"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
{"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
{"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
{"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
{"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
{"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
{"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
{"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
{"old-args", 0, POPT_ARG_NONE, 0, OPT_OLD_ARGS, 0, 0},
{"no-old-args", 0, POPT_ARG_VAL, &old_style_args, 0, 0, 0},
{"secluded-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
{"no-secluded-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
{"protect-args", 0, POPT_ARG_VAL, &protect_args, 1, 0, 0},
{"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
{"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
{"trust-sender", 0, POPT_ARG_VAL, &trust_sender, 1, 0, 0},
{"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
{"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
{"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
{"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
{"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
{"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
{"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
{"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
{"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
{"fsync", 0, POPT_ARG_NONE, &do_fsync, 0, 0, 0 },
{"stop-after", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 },
{"time-limit", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */
{"stop-at", 0, POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 },
{"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
{"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
{"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
{"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
{"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
{"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
{"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
{"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
{"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
{"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
{"mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 1, 0, 0 },
{"no-mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 0, 0, 0 },
{"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
{"copy-as", 0, POPT_ARG_STRING, &copy_as, 0, 0, 0 },
{"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
{"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
{"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
{"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
{"early-input", 0, POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
{"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
{"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
{"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
{"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
{"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
{"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
{"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
{"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
/* All the following options switch us into daemon-mode option-parsing. */
{"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
{"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
{"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
{0,0,0,0, 0, 0, 0}
};
static struct poptOption long_daemon_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
{"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
{"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
{"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
{"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
{"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
{"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
{"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
{"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
{"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
{"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
{"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
{"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
{"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
{"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
{"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
{"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
{"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
{"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
{0,0,0,0, 0, 0, 0}
};
static char err_buf[200];
/**
* Store the option error message, if any, so that we can log the
* connection attempt (which requires parsing the options), and then
* show the error later on.
**/
void option_error(void)
{
if (!err_buf[0]) {
strlcpy(err_buf, "Error parsing options: option may "
"be supported on client but not on server?\n",
sizeof err_buf);
}
rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
io_flush(MSG_FLUSH);
msleep(20);
}
static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
{
struct poptOption *op;
char shortName[2];
int is_wild = strpbrk(ref, "*?[") != NULL;
int found_match = 0;
shortName[1] = '\0';
if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
ref = "[ardlptgoD]";
is_wild = 1;
}
for (op = long_options; op != list_end; op++) {
*shortName = op->shortName;
if ((op->longName && wildmatch(ref, op->longName))
|| (*shortName && wildmatch(ref, shortName))) {
if (op->descrip[1] == '*')
op->descrip = negated ? "a*" : "r*";
else if (!is_wild)
op->descrip = negated ? "a=" : "r=";
found_match = 1;
if (!is_wild)
break;
}
}
if (!found_match)
rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
}
/**
* Tweak the option table to disable all options that the rsyncd.conf
* file has told us to refuse.
**/
static void set_refuse_options(void)
{
struct poptOption *op, *list_end = NULL;
char *cp, *ref = lp_refuse_options(module_id);
int negated;
if (!ref)
ref = "";
if (!am_daemon)
ref = "";
/* We abuse the descrip field in poptOption to make it easy to flag which options
* are refused (since we don't use it otherwise). Start by marking all options
* as "a"ccepted with a few options also marked as non-wild. */
for (op = long_options; ; op++) {
const char *longName = op->longName ? op->longName : "";
if (!op->longName && !op->shortName) {
list_end = op;
break;
}
if (!am_daemon
|| op->shortName == 'e' /* Required for compatibility flags */
|| op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
|| op->shortName == 's' /* --secluded-args is always OK */
|| op->shortName == 'n' /* --dry-run is always OK */
|| strcmp("iconv", longName) == 0
|| strcmp("no-iconv", longName) == 0
|| strcmp("checksum-seed", longName) == 0
|| strcmp("copy-devices", longName) == 0 /* disable wild-match (it gets refused below) */
|| strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
|| strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
|| strcmp("sender", longName) == 0
|| strcmp("server", longName) == 0)
op->descrip = "a="; /* exact-match only */
else
op->descrip = "a*"; /* wild-card-able */
}
assert(list_end != NULL);
if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
parse_one_refuse_match(0, "copy-devices", list_end);
parse_one_refuse_match(0, "write-devices", list_end);
}
while (1) {
while (*ref == ' ') ref++;
if (!*ref)
break;
if ((cp = strchr(ref, ' ')) != NULL)
*cp = '\0';
negated = *ref == '!';
if (negated && ref[1])
ref++;
parse_one_refuse_match(negated, ref, list_end);
if (!cp)
break;
*cp = ' ';
ref = cp + 1;
}
if (am_daemon) {
#ifdef ICONV_OPTION
if (!*lp_charset(module_id))
parse_one_refuse_match(0, "iconv", list_end);
#endif
parse_one_refuse_match(0, "log-file*", list_end);
}
#ifndef SUPPORT_ATIMES
parse_one_refuse_match(0, "atimes", list_end);
#endif
#ifndef SUPPORT_HARD_LINKS
parse_one_refuse_match(0, "link-dest", list_end);
#endif
#ifndef HAVE_MKTIME
parse_one_refuse_match(0, "stop-at", list_end);
#endif
#ifndef ICONV_OPTION
parse_one_refuse_match(0, "iconv", list_end);
#endif
#ifndef HAVE_SETVBUF
parse_one_refuse_match(0, "outbuf", list_end);
#endif
#ifndef SUPPORT_CRTIMES
parse_one_refuse_match(0, "crtimes", list_end);
#endif
/* Now we use the descrip values to actually mark the options for refusal. */
for (op = long_options; op != list_end; op++) {
int refused = op->descrip[0] == 'r';
op->descrip = NULL;
if (!refused)
continue;
if (op->argInfo == POPT_ARG_VAL)
op->argInfo = POPT_ARG_NONE;
op->val = (op - long_options) + OPT_REFUSED_BASE;
/* The following flags are set to let us easily check an implied option later in the code. */
switch (op->shortName) {
case 'r': case 'd': case 'l': case 'p':
case 't': case 'g': case 'o': case 'D':
refused_archive_part = op->val;
break;
case 'z':
refused_compress = op->val;
break;
case '\0':
if (strcmp("delete", op->longName) == 0)
refused_delete = op->val;
else if (strcmp("delete-before", op->longName) == 0)
refused_delete_before = op->val;
else if (strcmp("delete-during", op->longName) == 0)
refused_delete_during = op->val;
else if (strcmp("partial", op->longName) == 0)
refused_partial = op->val;
else if (strcmp("progress", op->longName) == 0)
refused_progress = op->val;
else if (strcmp("inplace", op->longName) == 0)
refused_inplace = op->val;
else if (strcmp("no-iconv", op->longName) == 0)
refused_no_iconv = op->val;
break;
}
}
}
static int count_args(const char **argv)
{
int i = 0;
if (argv) {
while (argv[i] != NULL)
i++;
}
return i;
}
/* If the size_arg is an invalid string or the value is < min_value, an error
* is put into err_buf & the return is -1. Note that this parser does NOT
* support negative numbers, so a min_value < 0 doesn't make any sense. */
static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name,
ssize_t min_value, ssize_t max_value, BOOL unlimited_0)
{
int reps, mult, len;
const char *arg, *err = "invalid", *min_max = NULL;
ssize_t limit = -1, size = 1;
for (arg = size_arg; isDigit(arg); arg++) {}
if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */
for (arg++; isDigit(arg); arg++) {}
switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
case 'b': case 'B':
reps = 0;
break;
case 'k': case 'K':
reps = 1;
break;
case 'm': case 'M':
reps = 2;
break;
case 'g': case 'G':
reps = 3;
break;
case 't': case 'T':
reps = 4;
break;
case 'p': case 'P':
reps = 5;
break;
default:
goto failure;
}
if (*arg == 'b' || *arg == 'B')
mult = 1000, arg++;
else if (!*arg || *arg == '+' || *arg == '-')
mult = 1024;
else if (strncasecmp(arg, "ib", 2) == 0)
mult = 1024, arg += 2;
else
goto failure;
while (reps--)
size *= mult;
size *= atof(size_arg);
if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg)
size += atoi(arg), arg += 2;
if (*arg)
goto failure;
if (size < 0 || (max_value >= 0 && size > max_value)) {
err = "too large";
min_max = "max";
limit = max_value;
goto failure;
}
if (size < min_value && (!unlimited_0 || size != 0)) {
err = "too small";
min_max = "min";
limit = min_value;
goto failure;
}
return size;
failure:
len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err);
if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) {
len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)",
min_max, do_big_num(limit, 3, NULL),
unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : "");
}
err_buf[len] = '\n';
err_buf[len+1] = '\0';
return -1;
}
#ifdef HAVE_MKTIME
/* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while
* also allowing abbreviated data. For instance, if the time is omitted,
* it defaults to midnight. If the date is omitted, it defaults to the
* next possible date in the future with the specified time. Even the
* year or year-month can be omitted, again defaulting to the next date
* in the future that matches the specified information. A 2-digit year
* is also OK, as is using '/' instead of '-'. */
static time_t parse_time(const char *arg)
{
const char *cp;
time_t val, now = time(NULL);
struct tm t, *today = localtime(&now);
int in_date, old_mday, n;
memset(&t, 0, sizeof t);
t.tm_year = t.tm_mon = t.tm_mday = -1;
t.tm_hour = t.tm_min = t.tm_isdst = -1;
cp = arg;
if (*cp == 'T' || *cp == 't' || *cp == ':') {
in_date = *cp == ':' ? 0 : -1;
cp++;
} else
in_date = 1;
for ( ; ; cp++) {
if (!isDigit(cp))
return (time_t)-1;
n = 0;
do {
n = n * 10 + *cp++ - '0';
} while (isDigit(cp));
if (*cp == ':')
in_date = 0;
if (in_date > 0) {
if (t.tm_year != -1)
return (time_t)-1;
t.tm_year = t.tm_mon;
t.tm_mon = t.tm_mday;
t.tm_mday = n;
if (!*cp)
break;
if (*cp == 'T' || *cp == 't') {
if (!cp[1])
break;
in_date = -1;
} else if (*cp != '-' && *cp != '/')
return (time_t)-1;
continue;
}
if (t.tm_hour != -1)
return (time_t)-1;
t.tm_hour = t.tm_min;
t.tm_min = n;
if (!*cp) {
if (in_date < 0)
return (time_t)-1;
break;
}
if (*cp != ':')
return (time_t)-1;
in_date = 0;
}
in_date = 0;
if (t.tm_year < 0) {
t.tm_year = today->tm_year;
in_date = 1;
} else if (t.tm_year < 100) {
while (t.tm_year < today->tm_year)
t.tm_year += 100;
} else
t.tm_year -= 1900;
if (t.tm_mon < 0) {
t.tm_mon = today->tm_mon;
in_date = 2;
} else
t.tm_mon--;
if (t.tm_mday < 0) {
t.tm_mday = today->tm_mday;
in_date = 3;
}
n = 0;
if (t.tm_min < 0) {
t.tm_hour = t.tm_min = 0;
} else if (t.tm_hour < 0) {
if (in_date != 3)
return (time_t)-1;
in_date = 0;
t.tm_hour = today->tm_hour;
n = 60*60;
}
/* Note that mktime() might change a too-large tm_mday into the start of
* the following month which we need to undo in the following code! */
old_mday = t.tm_mday;
if (t.tm_hour > 23 || t.tm_min > 59
|| t.tm_mon < 0 || t.tm_mon >= 12
|| t.tm_mday < 1 || t.tm_mday > 31
|| (val = mktime(&t)) == (time_t)-1)
return (time_t)-1;
while (in_date && (val <= now || t.tm_mday < old_mday)) {
switch (in_date) {
case 3:
old_mday = ++t.tm_mday;
break;
case 2:
if (t.tm_mday < old_mday)
t.tm_mday = old_mday; /* The month already got bumped forward */
else if (++t.tm_mon == 12) {
t.tm_mon = 0;
t.tm_year++;
}
break;
case 1:
if (t.tm_mday < old_mday) {
/* mon==1 mday==29 got bumped to mon==2 */
if (t.tm_mon != 2 || old_mday != 29)
return (time_t)-1;
t.tm_mon = 1;
t.tm_mday = 29;
}
t.tm_year++;
break;
}
if ((val = mktime(&t)) == (time_t)-1) {
/* This code shouldn't be needed, as mktime() should auto-round to the next month. */
if (in_date != 3 || t.tm_mday <= 28)
return (time_t)-1;
t.tm_mday = old_mday = 1;
in_date = 2;
}
}
if (n) {
while (val <= now)
val += n;
}
return val;
}
#endif
static void create_refuse_error(int which)
{
const char *msg;
if (am_daemon)
msg = "The server is configured to refuse";
else if (am_server)
msg = "The server does not support";
else
msg = "This rsync does not support";
/* The "which" value is the index + OPT_REFUSED_BASE. */
struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
if (op->shortName)
snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
}
/* This is used to make sure that --daemon & --server cannot be aliased to
* something else. These options have always disabled popt aliases for the
* parsing of a daemon or server command-line, but we have to make sure that
* these options cannot vanish so that the alias disabling can take effect. */
static void popt_unalias(poptContext con, const char *opt)
{
struct poptAlias unalias;
memset(&unalias, 0, sizeof unalias);
unalias.longName = opt + 2; /* point past the leading "--" */
unalias.argc = 1;
unalias.argv = new_array0(const char*, 2);
unalias.argv[0] = strdup(opt);
poptAddAlias(con, unalias, 0);
}
char *alt_dest_opt(int type)
{
if (!type)
type = alt_dest_type;
switch (type) {
case COMPARE_DEST:
return "--compare-dest";
case COPY_DEST:
return "--copy-dest";
case LINK_DEST:
return "--link-dest";
default:
NOISY_DEATH("Unknown alt_dest_opt type");
}
}
/**
* Process command line arguments. Called on both local and remote.
*
* @retval 1 if all options are OK; with globals set to appropriate
* values
*
* @retval 0 on error, with err_buf containing an explanation
**/
int parse_arguments(int *argc_p, const char ***argv_p)
{
static poptContext pc;
const char *arg, **argv = *argv_p;
int argc = *argc_p;
int opt, want_dest_type;
int orig_protect_args = protect_args;
if (argc == 0) {
strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
return 0;
}
set_refuse_options();
#ifdef ICONV_OPTION
if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
iconv_opt = strdup(arg);
#endif
/* TODO: Call poptReadDefaultConfig; handle errors. */
/* 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);
popt_unalias(pc, "--daemon");
popt_unalias(pc, "--server");
}
while ((opt = poptGetNextOpt(pc)) != -1) {
/* most options are handled automatically by popt;
* only special cases are returned and listed here. */
switch (opt) {
case 'V':
version_opt_cnt++;
break;
case OPT_SERVER:
if (!am_server) {
/* Disable popt aliases on the server side and
* then start parsing the options again. */
poptFreeContext(pc);
pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
am_server = 1;
}
#ifdef ICONV_OPTION
iconv_opt = NULL;
#endif
break;
case OPT_SENDER:
if (!am_server) {
usage(FERROR);
exit_cleanup(RERR_SYNTAX);
}
am_sender = 1;
break;
case OPT_DAEMON:
if (am_daemon) {
strlcpy(err_buf,
"Attempt to hack rsync thwarted!\n",
sizeof err_buf);
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)
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_mtimes = 1;
preserve_gid = 1;
preserve_uid = 1;
preserve_devices = 1;
preserve_specials = 1;
break;
case 'D':
preserve_devices = preserve_specials = 1;
break;
case OPT_NO_D:
preserve_devices = preserve_specials = 0;
break;
case 'h':
human_readable++;
break;
case 'H':
preserve_hard_links++;
break;
case 'i':
itemize_changes++;
break;
case 'U':
if (++preserve_atimes > 1)
open_noatime = 1;
break;
case 'v':
verbose++;
break;
case 'y':
fuzzy_basis++;
break;
case 'q':
quiet++;
break;
case 'x':
one_file_system++;
break;
case 'F':
switch (++F_option_cnt) {
case 1:
parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
break;
case 2:
parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
break;
}
break;
case 'P':
if (refused_partial || refused_progress) {
create_refuse_error(refused_partial ? refused_partial : refused_progress);
return 0;
}
do_progress = 1;
keep_partial = 1;
break;
case 'z':
do_compression++;
break;
case OPT_OLD_COMPRESS:
compress_choice = "zlib";
break;
case OPT_NEW_COMPRESS:
compress_choice = "zlibx";
break;
case OPT_NO_COMPRESS:
do_compression = 0;
compress_choice = NULL;
break;
case OPT_OLD_ARGS:
if (old_style_args <= 0)
old_style_args = 1;
else
old_style_args++;
break;
case 'M':
arg = poptGetOptArg(pc);
if (*arg != '-') {
snprintf(err_buf, sizeof err_buf,
"Remote option must start with a dash: %s\n", arg);
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_option_cnt)
remote_options[0] = "ARG0";
}
remote_options[++remote_option_cnt] = arg;
remote_options[remote_option_cnt+1] = NULL;
break;
case OPT_WRITE_BATCH:
/* batch_name is already set */
write_batch = 1;
break;
case OPT_ONLY_WRITE_BATCH:
/* batch_name is already set */
write_batch = -1;
break;
case OPT_READ_BATCH:
/* batch_name is already set */
read_batch = 1;
break;
case OPT_NO_ICONV:
#ifdef ICONV_OPTION
iconv_opt = NULL;
#endif
break;
case OPT_BLOCK_SIZE: {
/* We may not know the real protocol_version at this point if this is the client
* option parsing, but we still want to check it so that the client can specify
* a --protocol=29 option with a larger block size. */
int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
ssize_t size;
arg = poptGetOptArg(pc);
if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
return 0;
block_size = (int32)size;
break;
}
case OPT_MAX_SIZE:
if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0)
return 0;
max_size_arg = strdup(do_big_num(max_size, 0, NULL));
break;
case OPT_MIN_SIZE:
if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0)
return 0;
min_size_arg = strdup(do_big_num(min_size, 0, NULL));
break;
case OPT_BWLIMIT: {
ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True);
if (size < 0)
return 0;
bwlimit_arg = strdup(do_big_num(size, 0, NULL));
bwlimit = (size + 512) / 1024;
break;
}
case OPT_APPEND:
if (am_server)
append_mode++;
else
append_mode = 1;
break;
case OPT_LINK_DEST:
want_dest_type = LINK_DEST;
goto set_dest_dir;
case OPT_COPY_DEST:
want_dest_type = COPY_DEST;
goto set_dest_dir;
case OPT_COMPARE_DEST:
want_dest_type = COMPARE_DEST;
set_dest_dir:
if (alt_dest_type && alt_dest_type != want_dest_type) {
snprintf(err_buf, sizeof err_buf,
"ERROR: the %s option conflicts with the %s option\n",
alt_dest_opt(want_dest_type), alt_dest_opt(0));
return 0;
}
alt_dest_type = want_dest_type;
if (basis_dir_cnt >= MAX_BASIS_DIRS) {
snprintf(err_buf, sizeof err_buf,
"ERROR: at most %d %s args may be specified\n",
MAX_BASIS_DIRS, alt_dest_opt(0));
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;
preserve_uid = 1;
break;
case OPT_GROUPMAP:
if (groupmap) {
if (groupmap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--groupmap conflicts with prior --chown.\n");
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;
preserve_gid = 1;
break;
case OPT_CHOWN: {
const char *chown = poptGetOptArg(pc);
int len;
if ((arg = strchr(chown, ':')) != NULL)
len = arg++ - chown;
else
len = strlen(chown);
if (len) {
if (usermap) {
if (!usermap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--chown conflicts with prior --usermap.\n");
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;
preserve_uid = 1;
}
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;
preserve_gid = 1;
}
break;
}
case OPT_HELP:
usage(FINFO);
exit_cleanup(0);
case 'A':
#ifdef SUPPORT_ACLS
preserve_acls = 1;
preserve_perms = 1;
break;
#else
/* FIXME: this should probably be ignored with a
* warning and then countermeasures taken to
* restrict group and other access in the presence
* of any more restrictive ACLs, but this is safe
* for now */
snprintf(err_buf,sizeof(err_buf),
"ACLs are not supported on this %s\n",
am_server ? "server" : "client");
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
case OPT_STOP_AFTER: {
long val;
arg = poptGetOptArg(pc);
stop_at_utime = time(NULL);
if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) {
snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg);
return 0;
}
stop_at_utime += val;
break;
}
#ifdef HAVE_MKTIME
case OPT_STOP_AT:
arg = poptGetOptArg(pc);
if ((stop_at_utime = parse_time(arg)) == (time_t)-1) {
snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg);
return 0;
}
if (stop_at_utime <= time(NULL)) {
snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg);
return 0;
}
break;
#endif
case OPT_STDERR: {
int len;
arg = poptGetOptArg(pc);
len = strlen(arg);
if (len && strncmp("errors", arg, len) == 0)
msgs2stderr = 2;
else if (len && strncmp("all", arg, len) == 0)
msgs2stderr = 1;
else if (len && strncmp("client", arg, len) == 0)
msgs2stderr = 0;
else {
snprintf(err_buf, sizeof err_buf,
"--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
return 0;
}
saw_stderr_opt = 1;
break;
}
default:
/* A large opt value means that set_refuse_options()
* turned this option off. */
if (opt >= OPT_REFUSED_BASE) {
create_refuse_error(opt);
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 (msgs2stderr != 2)
saw_stderr_opt = 1;
if (version_opt_cnt) {
print_rsync_version(version_opt_cnt > 1 && !am_server ? FNONE : FINFO);
exit_cleanup(0);
}
if (!max_alloc_arg) {
max_alloc_arg = getenv("RSYNC_MAX_ALLOC");
if (max_alloc_arg && !*max_alloc_arg)
max_alloc_arg = NULL;
}
if (max_alloc_arg) {
ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True);
if (size < 0)
return 0;
max_alloc = size;
}
if (old_style_args < 0) {
if (!am_server && protect_args <= 0 && (arg = getenv("RSYNC_OLD_ARGS")) != NULL && *arg) {
protect_args = 0;
old_style_args = atoi(arg);
} else
old_style_args = 0;
} else if (old_style_args) {
if (protect_args > 0) {
snprintf(err_buf, sizeof err_buf,
"--secluded-args conflicts with --old-args.\n");
return 0;
}
protect_args = 0;
}
if (protect_args < 0) {
if (am_server)
protect_args = 0;
else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
protect_args = atoi(arg) ? 1 : 0;
else {
#ifdef RSYNC_USE_SECLUDED_ARGS
protect_args = 1;
#else
protect_args = 0;
#endif
}
}
if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
/* Call this early to verify the args and figure out if we need to force
* --whole-file. Note that the parse function will get called again later,
* just in case an "auto" choice needs to know the protocol_version. */
parse_checksum_choice(0);
} else
checksum_choice = NULL;
if (human_readable > 1 && argc == 2 && !am_server) {
/* Allow the old meaning of 'h' (--help) on its own. */
usage(FINFO);
exit_cleanup(0);
}
if (!compress_choice && do_compression > 1)
compress_choice = "zlibx";
if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
else
compress_choice = NULL;
if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
if (!do_compression)
do_compression = CPRES_AUTO;
if (do_compression && refused_compress) {
create_refuse_error(refused_compress);
return 0;
}
}
#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 == 1) { /* Are all messages going to stderr? */
/* Make stderr line buffered for better sharing of the stream. */
fflush(stderr); /* Just in case... */
setvbuf(stderr, (char *)NULL, _IOLBF, 0);
}
#endif
set_output_verbosity(verbose, DEFAULT_PRIORITY);
if (do_stats) {
parse_output_words(info_words, info_levels,
verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
}
#ifdef ICONV_OPTION
if (iconv_opt && protect_args != 2) {
if (!am_server && strcmp(iconv_opt, "-") == 0)
iconv_opt = NULL;
else
need_unsorted_flist = 1;
}
if (refused_no_iconv && !iconv_opt) {
create_refuse_error(refused_no_iconv);
return 0;
}
#endif
if (fuzzy_basis > 1)
fuzzy_basis = basis_dir_cnt + 1;
/* Don't let the client reset protect_args if it was already processed */
if (orig_protect_args == 2 && am_server)
protect_args = orig_protect_args;
if (protect_args == 1 && am_server)
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 (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 (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;
make_backups = 1; /* --backup-dir implies --backup */
while (*backup_dir == '.' && backup_dir[1] == '/')
backup_dir += 2;
if (*backup_dir == '.' && backup_dir[1] == '\0')
backup_dir++;
len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
if (len > sizeof backup_dir_buf - 128) {
snprintf(err_buf, sizeof err_buf,
"the --backup-dir path is WAY too long.\n");
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 (make_backups && !backup_dir)
omit_dir_times = -1; /* Implied, so avoid -O to sender. */
if (stdout_format) {
if (am_server && log_format_has(stdout_format, 'I'))
stdout_format_has_i = 2;
else if (log_format_has(stdout_format, 'i'))
stdout_format_has_i = itemize_changes | 1;
if (!log_format_has(stdout_format, 'b')
&& !log_format_has(stdout_format, 'c')
&& !log_format_has(stdout_format, 'C'))
log_before_transfer = !am_server;
} else if (itemize_changes) {
stdout_format = "%i %n%L";
stdout_format_has_i = itemize_changes;
log_before_transfer = !am_server;
}
if (do_progress && !am_server) {
if (!log_before_transfer && INFO_EQ(NAME, 0))
parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
}
if (dry_run)
do_xfers = 0;
set_io_timeout(io_timeout);
if (INFO_GTE(NAME, 1) && !stdout_format) {
stdout_format = "%n%L";
log_before_transfer = !am_server;
}
if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
stdout_format_has_o_or_i = 1;
if (logfile_name && !am_daemon) {
if (!logfile_format) {
logfile_format = "%i %n%L";
logfile_format_has_i = logfile_format_has_o_or_i = 1;
} else {
if (log_format_has(logfile_format, 'i'))
logfile_format_has_i = 1;
if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
logfile_format_has_o_or_i = 1;
}
log_init(0);
} else if (!am_daemon)
logfile_format = NULL;
if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
bwlimit = daemon_bwlimit;
if (bwlimit) {
bwlimit_writemax = (size_t)bwlimit * 128;
if (bwlimit_writemax < 512)
bwlimit_writemax = 512;
}
if (append_mode) {
if (whole_file > 0) {
snprintf(err_buf, sizeof err_buf,
"--append cannot be used with --whole-file\n");
return 0;
}
if (refused_inplace) {
create_refuse_error(refused_inplace);
return 0;
}
inplace = 1;
}
if (write_devices) {
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;
}
}
}
if (trust_sender || am_server || read_batch)
trust_sender_args = trust_sender_filter = 1;
else if (old_style_args || filesfrom_host != NULL)
trust_sender_args = 1;
am_starting_up = 0;
return 1;
options_rejected:
snprintf(err_buf, sizeof err_buf,
"Your options have been rejected by the server.\n");
return 0;
}
static char SPLIT_ARG_WHEN_OLD[1];
/**
* Do backslash quoting of any weird chars in "arg", append the resulting
* string to the end of the "opt" (which gets a "=" appended if it is not
* an empty or NULL string), and return the (perhaps malloced) result.
* If opt is NULL, arg is considered a filename arg that allows wildcards.
* If it is "" or any other value, it is considered an option.
**/
char *safe_arg(const char *opt, const char *arg)
{
#define SHELL_CHARS "!#$&;|<>(){}\"' \t\\"
#define WILD_CHARS "*?[]" /* We don't allow remote brace expansion */
BOOL is_filename_arg = !opt;
char *escapes = is_filename_arg ? SHELL_CHARS : WILD_CHARS SHELL_CHARS;
BOOL escape_leading_dash = is_filename_arg && *arg == '-';
BOOL escape_leading_tilde = 0;
int len1 = opt && *opt ? strlen(opt) + 1 : 0;
int len2 = strlen(arg);
int extras = escape_leading_dash ? 2 : 0;
char *ret;
if (!protect_args && old_style_args < 2 && (!old_style_args || (!is_filename_arg && opt != SPLIT_ARG_WHEN_OLD))) {
const char *f;
if (!trust_sender_args && *arg == '~'
&& ((relative_paths && !strstr(arg, "/./"))
|| !strchr(arg, '/'))) {
extras++;
escape_leading_tilde = 1;
}
for (f = arg; *f; f++) {
if (strchr(escapes, *f))
extras++;
}
}
if (!len1 && !extras)
return (char*)arg;
ret = new_array(char, len1 + len2 + extras + 1);
if (len1) {
memcpy(ret, opt, len1-1);
ret[len1-1] = '=';
}
if (escape_leading_dash) {
ret[len1++] = '.';
ret[len1++] = '/';
extras -= 2;
}
if (!extras)
memcpy(ret + len1, arg, len2);
else {
const char *f = arg;
char *t = ret + len1;
if (escape_leading_tilde)
*t++ = '\\';
while (*f) {
if (*f == '\\') {
if (!is_filename_arg || !strchr(WILD_CHARS, f[1]))
*t++ = '\\';
} else if (strchr(escapes, *f))
*t++ = '\\';
*t++ = *f++;
}
}
ret[len1+len2+extras] = '\0';
return ret;
}
/**
* Construct a filtered list of options to pass through from the
* client to the server.
*
* This involves setting options that will tell the server how to
* behave, and also filtering out options that are processed only
* locally.
**/
void server_options(char **args, int *argc_p)
{
static char argstr[64];
int ac = *argc_p;
uchar where;
char *arg;
int i, x;
/* This should always remain first on the server's command-line. */
args[ac++] = "--server";
if (!am_sender)
args[ac++] = "--sender";
x = 1;
argstr[0] = '-';
if (protect_args)
argstr[x++] = 's';
for (i = 0; i < verbose; i++)
argstr[x++] = 'v';
if (quiet && msgs2stderr)
argstr[x++] = 'q';
if (make_backups)
argstr[x++] = 'b';
if (update_only)
argstr[x++] = 'u';
if (!do_xfers) /* Note: NOT "dry_run"! */
argstr[x++] = 'n';
if (preserve_links)
argstr[x++] = 'l';
if ((xfer_dirs >= 2 && xfer_dirs < 4)
|| (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
argstr[x++] = 'd';
if (am_sender) {
if (keep_dirlinks)
argstr[x++] = 'K';
if (prune_empty_dirs)
argstr[x++] = 'm';
if (omit_dir_times > 0)
argstr[x++] = 'O';
if (omit_link_times)
argstr[x++] = 'J';
if (fuzzy_basis) {
argstr[x++] = 'y';
if (fuzzy_basis > 1)
argstr[x++] = 'y';
}
} else {
if (copy_links)
argstr[x++] = 'L';
if (copy_dirlinks)
argstr[x++] = 'k';
}
if (whole_file > 0)
argstr[x++] = 'W';
/* We don't need to send --no-whole-file, because it's the
* default for remote transfers, and in any case old versions
* of rsync will not understand it. */
if (preserve_hard_links) {
argstr[x++] = 'H';
if (preserve_hard_links > 1)
argstr[x++] = 'H';
}
if (preserve_uid)
argstr[x++] = 'o';
if (preserve_gid)
argstr[x++] = 'g';
if (preserve_devices) /* ignore preserve_specials here */
argstr[x++] = 'D';
if (preserve_mtimes)
argstr[x++] = 't';
if (preserve_atimes) {
argstr[x++] = 'U';
if (preserve_atimes > 1)
argstr[x++] = 'U';
}
#ifdef SUPPORT_CRTIMES
if (preserve_crtimes)
argstr[x++] = 'N';
#endif
if (preserve_perms)
argstr[x++] = 'p';
else if (preserve_executability && am_sender)
argstr[x++] = 'E';
#ifdef SUPPORT_ACLS
if (preserve_acls)
argstr[x++] = 'A';
#endif
#ifdef SUPPORT_XATTRS
if (preserve_xattrs) {
argstr[x++] = 'X';
if (preserve_xattrs > 1)
argstr[x++] = 'X';
}
#endif
if (recurse)
argstr[x++] = 'r';
if (always_checksum)
argstr[x++] = 'c';
if (cvs_exclude)
argstr[x++] = 'C';
if (ignore_times)
argstr[x++] = 'I';
if (relative_paths)
argstr[x++] = 'R';
if (one_file_system) {
argstr[x++] = 'x';
if (one_file_system > 1)
argstr[x++] = 'x';
}
if (sparse_files)
argstr[x++] = 'S';
if (do_compression == CPRES_ZLIB)
argstr[x++] = 'z';
set_allow_inc_recurse();
/* This '\0'-terminates argstr and makes sure it didn't overflow. */
x += maybe_add_e_option(argstr + x, (int)sizeof argstr - x);
if (x > 1)
args[ac++] = argstr;
#ifdef ICONV_OPTION
if (iconv_opt) {
char *set = strchr(iconv_opt, ',');
if (set)
set++;
else
set = iconv_opt;
args[ac++] = safe_arg("--iconv", set);
}
#endif
if (protect_args && !local_server) /* unprotected args stop here */
args[ac++] = NULL;
if (list_only > 1)
args[ac++] = "--list-only";
/* This makes sure that the remote rsync can handle deleting with -d
* sans -r because the --no-r option was added at the same time. */
if (xfer_dirs && !recurse && delete_mode && am_sender)
args[ac++] = "--no-r";
if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
goto oom;
args[ac++] = arg;
}
if (preserve_devices) {
/* Note: sending "--devices" would not be backward-compatible. */
if (!preserve_specials)
args[ac++] = "--no-specials"; /* -D is already set. */
} else if (preserve_specials)
args[ac++] = "--specials";
/* The server side doesn't use our log-format, but in certain
* circumstances they need to know a little about the option. */
if (stdout_format && am_sender) {
/* Use --log-format, not --out-format, for compatibility. */
if (stdout_format_has_i > 1)
args[ac++] = "--log-format=%i%I";
else if (stdout_format_has_i)
args[ac++] = "--log-format=%i";
else if (stdout_format_has_o_or_i)
args[ac++] = "--log-format=%o";
else if (!verbose)
args[ac++] = "--log-format=X";
}
if (msgs2stderr == 1)
args[ac++] = "--msgs2stderr";
else if (msgs2stderr == 0)
args[ac++] = "--no-msgs2stderr";
if (block_size) {
if (asprintf(&arg, "-B%u", (int)block_size) < 0)
goto oom;
args[ac++] = arg;
}
if (io_timeout) {
if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
goto oom;
args[ac++] = arg;
}
if (bwlimit) {
if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
goto oom;
args[ac++] = arg;
}
if (backup_dir) {
/* This split idiom allows for ~/path expansion via the shell. */
args[ac++] = "--backup-dir";
args[ac++] = safe_arg("", backup_dir);
}
/* Only send --suffix if it specifies a non-default value. */
if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0)
args[ac++] = safe_arg("--suffix", backup_suffix);
if (checksum_choice)
args[ac++] = safe_arg("--checksum-choice", checksum_choice);
if (do_compression == CPRES_ZLIBX)
args[ac++] = "--new-compress";
else if (compress_choice && do_compression == CPRES_ZLIB)
args[ac++] = "--old-compress";
else if (compress_choice)
args[ac++] = safe_arg("--compress-choice", compress_choice);
if (am_sender) {
if (max_delete > 0) {
if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
goto oom;
args[ac++] = arg;
} else if (max_delete == 0)
args[ac++] = "--max-delete=-1";
if (min_size >= 0)
args[ac++] = safe_arg("--min-size", min_size_arg);
if (max_size >= 0)
args[ac++] = safe_arg("--max-size", max_size_arg);
if (delete_before)
args[ac++] = "--delete-before";
else if (delete_during == 2)
args[ac++] = "--delete-delay";
else if (delete_during)
args[ac++] = "--delete-during";
else if (delete_after)
args[ac++] = "--delete-after";
else if (delete_mode && !delete_excluded)
args[ac++] = "--delete";
if (delete_excluded)
args[ac++] = "--delete-excluded";
if (force_delete)
args[ac++] = "--force";
if (write_batch < 0)
args[ac++] = "--only-write-batch=X";
if (am_root > 1)
args[ac++] = "--super";
if (size_only)
args[ac++] = "--size-only";
if (do_stats)
args[ac++] = "--stats";
} else {
if (skip_compress)
args[ac++] = safe_arg("--skip-compress", skip_compress);
}
if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC)
args[ac++] = safe_arg("--max-alloc", max_alloc_arg);
/* --delete-missing-args needs the cooperation of both sides, but
* the sender can handle --ignore-missing-args by itself. */
if (missing_args == 2)
args[ac++] = "--delete-missing-args";
else if (missing_args == 1 && !am_sender)
args[ac++] = "--ignore-missing-args";
if (modify_window_set && am_sender) {
char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
if (asprintf(&arg, fmt, modify_window) < 0)
goto oom;
args[ac++] = arg;
}
if (checksum_seed) {
if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
goto oom;
args[ac++] = arg;
}
if (partial_dir && am_sender) {
if (partial_dir != tmp_partialdir) {
args[ac++] = "--partial-dir";
args[ac++] = safe_arg("", partial_dir);
}
if (delay_updates)
args[ac++] = "--delay-updates";
} else if (keep_partial && am_sender)
args[ac++] = "--partial";
if (ignore_errors)
args[ac++] = "--ignore-errors";
if (copy_unsafe_links)
args[ac++] = "--copy-unsafe-links";
if (safe_symlinks)
args[ac++] = "--safe-links";
if (numeric_ids)
args[ac++] = "--numeric-ids";
if (use_qsort)
args[ac++] = "--use-qsort";
if (am_sender) {
if (usermap)
args[ac++] = safe_arg("--usermap", usermap);
if (groupmap)
args[ac++] = safe_arg("--groupmap", groupmap);
if (ignore_existing)
args[ac++] = "--ignore-existing";
/* Backward compatibility: send --existing, not --ignore-non-existing. */
if (ignore_non_existing)
args[ac++] = "--existing";
if (tmpdir) {
args[ac++] = "--temp-dir";
args[ac++] = safe_arg("", tmpdir);
}
if (do_fsync)
args[ac++] = "--fsync";
if (basis_dir[0]) {
/* the server only needs this option if it is not the sender,
* and it may be an older version that doesn't know this
* option, so don't send it if client is the sender.
*/
for (i = 0; i < basis_dir_cnt; i++) {
args[ac++] = alt_dest_opt(0);
args[ac++] = safe_arg("", basis_dir[i]);
}
}
}
/* What flags do we need to send to the other side? */
where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
arg = make_output_option(info_words, info_levels, where);
if (arg)
args[ac++] = arg;
if (append_mode) {
if (append_mode > 1)
args[ac++] = "--append";
args[ac++] = "--append";
} else if (inplace) {
args[ac++] = "--inplace";
/* Work around a bug in older rsync versions (on the remote side) for --inplace --sparse */
if (sparse_files && !whole_file && am_sender)
args[ac++] = "--no-W";
}
if (files_from && (!am_sender || filesfrom_host)) {
if (filesfrom_host) {
args[ac++] = "--files-from";
args[ac++] = safe_arg("", files_from);
if (eol_nulls)
args[ac++] = "--from0";
} else {
args[ac++] = "--files-from=-";
args[ac++] = "--from0";
}
if (!relative_paths)
args[ac++] = "--no-relative";
}
/* It's OK that this checks the upper-bound of the protocol_version. */
if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
args[ac++] = "--no-implied-dirs";
if (write_devices && am_sender)
args[ac++] = "--write-devices";
if (remove_source_files == 1)
args[ac++] = "--remove-source-files";
else if (remove_source_files)
args[ac++] = "--remove-sent-files";
if (copy_devices && !am_sender)
args[ac++] = "--copy-devices";
if (preallocate_files && am_sender)
args[ac++] = "--preallocate";
if (open_noatime && preserve_atimes <= 1)
args[ac++] = "--open-noatime";
if (mkpath_dest_arg && am_sender)
args[ac++] = "--mkpath";
if (ac > MAX_SERVER_ARGS) { /* Not possible... */
rprintf(FERROR, "argc overflow in server_options().\n");
exit_cleanup(RERR_MALLOC);
}
if (remote_option_cnt) {
int j;
if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
rprintf(FERROR, "too many remote options specified.\n");
exit_cleanup(RERR_SYNTAX);
}
for (j = 1; j <= remote_option_cnt; j++)
args[ac++] = safe_arg(SPLIT_ARG_WHEN_OLD, remote_options[j]);
}
*argc_p = ac;
return;
oom:
out_of_memory("server_options");
}
int maybe_add_e_option(char *buf, int buf_len)
{
int x = 0;
/* We don't really know the actual protocol_version at this point,
* but checking the pre-negotiated value allows the user to use a
* --protocol=29 override to avoid the use of this -eFLAGS opt. */
if (protocol_version >= 30 && buf_len > 0) {
/* We make use of the -e option to let the server know about
* any pre-release protocol version && some behavior flags. */
buf[x++] = 'e';
#if SUBPROTOCOL_VERSION != 0
if (protocol_version == PROTOCOL_VERSION)
x += snprintf(buf + x, buf_len - x, "%d.%d", PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
else
#endif
buf[x++] = '.';
if (allow_inc_recurse)
buf[x++] = 'i';
#ifdef CAN_SET_SYMLINK_TIMES
buf[x++] = 'L'; /* symlink time-setting support */
#endif
#ifdef ICONV_OPTION
buf[x++] = 's'; /* symlink iconv translation support */
#endif
buf[x++] = 'f'; /* flist I/O-error safety support */
buf[x++] = 'x'; /* xattr hardlink optimization not desired */
buf[x++] = 'C'; /* support checksum seed order fix */
buf[x++] = 'I'; /* support inplace_partial behavior */
buf[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
buf[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */
/* NOTE: Avoid using 'V' -- it was represented with the high bit of a write_byte() that became a write_varint(). */
}
if (x >= buf_len) { /* Not possible... */
rprintf(FERROR, "overflow in add_e_flags().\n");
exit_cleanup(RERR_MALLOC);
}
buf[x] = '\0';
return x;
}
/* If str points to a valid hostspec, return allocated memory containing the
* [USER@]HOST part of the string, and set the path_start_ptr to the part of
* the string after the host part. Otherwise, return NULL. If port_ptr is
* non-NULL, we must be parsing an rsync:// URL hostname, and we will set
* *port_ptr if a port number is found. Note that IPv6 IPs will have their
* (required for parsing) [ and ] chars elided from the returned string. */
static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
{
char *s, *host_start = str;
int hostlen = 0, userlen = 0;
char *ret;
for (s = str; ; s++) {
if (!*s) {
/* It is only OK if we run out of string with rsync:// */
if (!port_ptr)
return NULL;
if (!hostlen)
hostlen = s - host_start;
break;
}
if (*s == ':' || *s == '/') {
if (!hostlen)
hostlen = s - host_start;
if (*s++ == '/') {
if (!port_ptr)
return NULL;
} else if (port_ptr) {
*port_ptr = atoi(s);
while (isDigit(s)) s++;
if (*s && *s++ != '/')
return NULL;
}
break;
}
if (*s == '@') {
userlen = s - str + 1;
host_start = s + 1;
} else if (*s == '[') {
if (s != host_start++)
return NULL;
while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
hostlen = s - host_start;
if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
return NULL;
}
}
*path_start_ptr = s;
ret = new_array(char, userlen + hostlen + 1);
if (userlen)
strlcpy(ret, str, userlen + 1);
strlcpy(ret + userlen, host_start, hostlen + 1);
return ret;
}
/* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
* "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
* memory with the HOST. If a daemon-accessing spec was specified, the value
* of *port_ptr will contain a non-0 port number, otherwise it will be set to
* 0. The return value is a pointer to the PATH. Note that the HOST spec can
* be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
* "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
{
char *path;
if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
*host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
if (*host_ptr) {
if (!*port_ptr)
*port_ptr = -1; /* -1 indicates they want the default */
return path;
}
}
*host_ptr = parse_hostspec(s, &path, NULL);
if (!*host_ptr)
return NULL;
if (*path == ':') {
if (port_ptr && !*port_ptr)
*port_ptr = -1;
return path + 1;
}
if (port_ptr)
*port_ptr = 0;
return path;
}