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-rw-r--r--options.c170
1 files changed, 96 insertions, 74 deletions
diff --git a/options.c b/options.c
index d38bbe8..fd67475 100644
--- a/options.c
+++ b/options.c
@@ -3,7 +3,7 @@
*
* 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
+ * Copyright (C) 2002-2023 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
@@ -200,6 +200,7 @@ int remote_option_cnt = 0;
const char **remote_options = NULL;
const char *checksum_choice = NULL;
const char *compress_choice = NULL;
+static const char *empty_argv[1];
int quiet = 0;
int output_motd = 1;
@@ -1347,7 +1348,7 @@ char *alt_dest_opt(int type)
**/
int parse_arguments(int *argc_p, const char ***argv_p)
{
- static poptContext pc;
+ poptContext pc;
const char *arg, **argv = *argv_p;
int argc = *argc_p;
int opt, want_dest_type;
@@ -1367,10 +1368,6 @@ int parse_arguments(int *argc_p, const char ***argv_p)
/* 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);
@@ -1413,7 +1410,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
strlcpy(err_buf,
"Attempt to hack rsync thwarted!\n",
sizeof err_buf);
- return 0;
+ goto cleanup;
}
#ifdef ICONV_OPTION
iconv_opt = NULL;
@@ -1459,7 +1456,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
snprintf(err_buf, sizeof err_buf,
"the --temp-dir path is WAY too long.\n");
- return 0;
+ goto cleanup;
}
if (!daemon_opt) {
@@ -1469,8 +1466,16 @@ int parse_arguments(int *argc_p, const char ***argv_p)
exit_cleanup(RERR_SYNTAX);
}
- *argv_p = argv = poptGetArgs(pc);
- *argc_p = argc = count_args(argv);
+ argv = poptGetArgs(pc);
+ argc = count_args(argv);
+ if (!argc) {
+ *argv_p = empty_argv;
+ *argc_p = 0;
+ } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0)
+ out_of_memory("parse_arguments");
+ argv = *argv_p;
+ poptFreeContext(pc);
+
am_starting_up = 0;
daemon_opt = 0;
am_daemon = 1;
@@ -1525,7 +1530,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
case 'a':
if (refused_archive_part) {
create_refuse_error(refused_archive_part);
- return 0;
+ goto cleanup;
}
if (!recurse) /* preserve recurse == 2 */
recurse = 1;
@@ -1595,7 +1600,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
case 'P':
if (refused_partial || refused_progress) {
create_refuse_error(refused_partial ? refused_partial : refused_progress);
- return 0;
+ goto cleanup;
}
do_progress = 1;
keep_partial = 1;
@@ -1630,7 +1635,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (*arg != '-') {
snprintf(err_buf, sizeof err_buf,
"Remote option must start with a dash: %s\n", arg);
- return 0;
+ goto cleanup;
}
if (remote_option_cnt+2 >= remote_option_alloc) {
remote_option_alloc += 16;
@@ -1672,27 +1677,27 @@ int parse_arguments(int *argc_p, const char ***argv_p)
ssize_t size;
arg = poptGetOptArg(pc);
if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
- return 0;
+ goto cleanup;
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;
+ goto cleanup;
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;
+ goto cleanup;
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;
+ goto cleanup;
bwlimit_arg = strdup(do_big_num(size, 0, NULL));
bwlimit = (size + 512) / 1024;
break;
@@ -1721,7 +1726,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
}
alt_dest_type = want_dest_type;
@@ -1729,7 +1734,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
}
/* We defer sanitizing this arg until we know what
* our destination directory is going to be. */
@@ -1742,7 +1747,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf, sizeof err_buf,
"Invalid argument passed to --chmod (%s)\n",
arg);
- return 0;
+ goto cleanup;
}
break;
@@ -1761,11 +1766,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (usermap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--usermap conflicts with prior --chown.\n");
- return 0;
+ goto cleanup;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify --usermap once.\n");
- return 0;
+ goto cleanup;
}
usermap = (char *)poptGetOptArg(pc);
usermap_via_chown = False;
@@ -1777,11 +1782,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (groupmap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--groupmap conflicts with prior --chown.\n");
- return 0;
+ goto cleanup;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify --groupmap once.\n");
- return 0;
+ goto cleanup;
}
groupmap = (char *)poptGetOptArg(pc);
groupmap_via_chown = False;
@@ -1800,11 +1805,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (!usermap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--chown conflicts with prior --usermap.\n");
- return 0;
+ goto cleanup;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify a user-affecting --chown once.\n");
- return 0;
+ goto cleanup;
}
if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
out_of_memory("parse_arguments");
@@ -1816,11 +1821,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (!groupmap_via_chown) {
snprintf(err_buf, sizeof err_buf,
"--chown conflicts with prior --groupmap.\n");
- return 0;
+ goto cleanup;
}
snprintf(err_buf, sizeof err_buf,
"You can only specify a group-affecting --chown once.\n");
- return 0;
+ goto cleanup;
}
if (asprintf(&groupmap, "*:%s", arg) < 0)
out_of_memory("parse_arguments");
@@ -1848,7 +1853,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf,sizeof(err_buf),
"ACLs are not supported on this %s\n",
am_server ? "server" : "client");
- return 0;
+ goto cleanup;
#endif
case 'X':
@@ -1859,7 +1864,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf,sizeof(err_buf),
"extended attributes are not supported on this %s\n",
am_server ? "server" : "client");
- return 0;
+ goto cleanup;
#endif
case OPT_STOP_AFTER: {
@@ -1868,7 +1873,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
}
stop_at_utime += val;
break;
@@ -1879,11 +1884,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
}
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;
+ goto cleanup;
}
break;
#endif
@@ -1901,7 +1906,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
else {
snprintf(err_buf, sizeof err_buf,
"--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
- return 0;
+ goto cleanup;
}
saw_stderr_opt = 1;
break;
@@ -1912,13 +1917,13 @@ int parse_arguments(int *argc_p, const char ***argv_p)
* turned this option off. */
if (opt >= OPT_REFUSED_BASE) {
create_refuse_error(opt);
- return 0;
+ goto cleanup;
}
snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
am_server ? "on remote machine: " : "",
poptBadOption(pc, POPT_BADOPTION_NOALIAS),
poptStrerror(opt));
- return 0;
+ goto cleanup;
}
}
@@ -1938,9 +1943,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
max_alloc = size;
}
+ if (!max_alloc)
+ max_alloc = SIZE_MAX;
if (old_style_args < 0) {
if (!am_server && protect_args <= 0 && (arg = getenv("RSYNC_OLD_ARGS")) != NULL && *arg) {
@@ -1952,7 +1959,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (protect_args > 0) {
snprintf(err_buf, sizeof err_buf,
"--secluded-args conflicts with --old-args.\n");
- return 0;
+ goto cleanup;
}
protect_args = 0;
}
@@ -1997,7 +2004,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
do_compression = CPRES_AUTO;
if (do_compression && refused_compress) {
create_refuse_error(refused_compress);
- return 0;
+ goto cleanup;
}
}
@@ -2022,7 +2029,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
default:
snprintf(err_buf, sizeof err_buf,
"Invalid --outbuf setting -- specify N, L, or B.\n");
- return 0;
+ goto cleanup;
}
setvbuf(stdout, (char *)NULL, mode, 0);
}
@@ -2050,7 +2057,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
}
if (refused_no_iconv && !iconv_opt) {
create_refuse_error(refused_no_iconv);
- return 0;
+ goto cleanup;
}
#endif
@@ -2061,18 +2068,30 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (orig_protect_args == 2 && am_server)
protect_args = orig_protect_args;
- if (protect_args == 1 && am_server)
+ if (protect_args == 1 && am_server) {
+ poptFreeContext(pc);
return 1;
+ }
- *argv_p = argv = poptGetArgs(pc);
- *argc_p = argc = count_args(argv);
+ /* Because popt 1.19 has started to free the returned args data, we now
+ * make a copy of the array and then do an immediate cleanup. */
+ argv = poptGetArgs(pc);
+ argc = count_args(argv);
+ if (!argc) {
+ *argv_p = empty_argv;
+ *argc_p = 0;
+ } else if (poptDupArgv(argc, argv, argc_p, argv_p) != 0)
+ out_of_memory("parse_arguments");
+ argv = *argv_p;
+ poptFreeContext(pc);
+ pc = NULL;
#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;
+ goto cleanup;
}
#endif
@@ -2081,7 +2100,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf, sizeof err_buf,
"hard links are not supported on this %s\n",
am_server ? "server" : "client");
- return 0;
+ goto cleanup;
}
#endif
@@ -2089,20 +2108,20 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (am_root < 0 && preserve_xattrs > 1) {
snprintf(err_buf, sizeof err_buf,
"--fake-super conflicts with -XX\n");
- return 0;
+ goto cleanup;
}
#else
if (am_root < 0) {
snprintf(err_buf, sizeof err_buf,
"--fake-super requires an rsync with extended attributes enabled\n");
- return 0;
+ goto cleanup;
}
#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;
+ goto cleanup;
}
if (write_batch > 0 || read_batch) {
if (am_server) {
@@ -2121,25 +2140,25 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (read_batch && files_from) {
snprintf(err_buf, sizeof err_buf,
"--read-batch cannot be used with --files-from\n");
- return 0;
+ goto cleanup;
}
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;
+ goto cleanup;
}
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;
+ goto cleanup;
}
if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
snprintf(err_buf, sizeof err_buf,
"the --temp-dir path is WAY too long.\n");
- return 0;
+ goto cleanup;
}
if (max_delete < 0 && max_delete != INT_MIN) {
@@ -2173,7 +2192,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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;
+ goto cleanup;
}
if (delete_before || delete_during || delete_after)
delete_mode = 1;
@@ -2184,7 +2203,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
delete_during = 1;
else {
create_refuse_error(refused_delete_before);
- return 0;
+ goto cleanup;
}
} else if (refused_delete_during)
delete_before = 1;
@@ -2193,14 +2212,14 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (!xfer_dirs && delete_mode) {
snprintf(err_buf, sizeof err_buf,
"--delete does not work without --recursive (-r) or --dirs (-d).\n");
- return 0;
+ goto cleanup;
}
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;
+ goto cleanup;
}
if (remove_source_files) {
@@ -2209,7 +2228,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
* options. */
if (refused_delete && am_sender) {
create_refuse_error(refused_delete);
- return 0;
+ goto cleanup;
}
need_messages_from_generator = 1;
}
@@ -2263,7 +2282,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf, sizeof err_buf,
"--suffix cannot contain slashes: %s\n",
backup_suffix);
- return 0;
+ goto cleanup;
}
if (backup_dir) {
size_t len;
@@ -2276,7 +2295,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (len > sizeof backup_dir_buf - 128) {
snprintf(err_buf, sizeof err_buf,
"the --backup-dir path is WAY too long.\n");
- return 0;
+ goto cleanup;
}
backup_dir_len = (int)len;
if (!backup_dir_len) {
@@ -2295,7 +2314,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
"--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;
+ goto cleanup;
} else if (make_backups && delete_mode && !delete_excluded && !am_server) {
snprintf(backup_dir_buf, sizeof backup_dir_buf,
"P *%s", backup_suffix);
@@ -2323,7 +2342,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
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);
+ parse_output_words(info_words, info_levels, "FLIST2,PROGRESS", DEFAULT_PRIORITY);
}
if (dry_run)
@@ -2364,11 +2383,11 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (whole_file > 0) {
snprintf(err_buf, sizeof err_buf,
"--append cannot be used with --whole-file\n");
- return 0;
+ goto cleanup;
}
if (refused_inplace) {
create_refuse_error(refused_inplace);
- return 0;
+ goto cleanup;
}
inplace = 1;
}
@@ -2376,7 +2395,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (write_devices) {
if (refused_inplace) {
create_refuse_error(refused_inplace);
- return 0;
+ goto cleanup;
}
inplace = 1;
}
@@ -2391,13 +2410,13 @@ int parse_arguments(int *argc_p, const char ***argv_p)
"--%s cannot be used with --%s\n",
append_mode ? "append" : "inplace",
delay_updates ? "delay-updates" : "partial-dir");
- return 0;
+ goto cleanup;
}
/* --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;
+ goto cleanup;
}
keep_partial = 0;
#else
@@ -2405,7 +2424,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
"--%s is not supported on this %s\n",
append_mode ? "append" : "inplace",
am_server ? "server" : "client");
- return 0;
+ goto cleanup;
#endif
} else {
if (keep_partial && !partial_dir && !am_server) {
@@ -2419,7 +2438,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
partial_dir = NULL;
if (!partial_dir && refused_partial) {
create_refuse_error(refused_partial);
- return 0;
+ goto cleanup;
}
keep_partial = 1;
}
@@ -2440,14 +2459,14 @@ int parse_arguments(int *argc_p, const char ***argv_p)
if (am_server) {
snprintf(err_buf, sizeof err_buf,
"The --files-from sent to the server cannot specify a host.\n");
- return 0;
+ goto cleanup;
}
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;
+ goto cleanup;
}
} else {
if (sanitize_paths)
@@ -2466,7 +2485,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf, sizeof err_buf,
"failed to open files-from file %s: %s\n",
files_from, strerror(errno));
- return 0;
+ goto cleanup;
}
}
}
@@ -2483,6 +2502,9 @@ int parse_arguments(int *argc_p, const char ***argv_p)
options_rejected:
snprintf(err_buf, sizeof err_buf,
"Your options have been rejected by the server.\n");
+ cleanup:
+ if (pc)
+ poptFreeContext(pc);
return 0;
}
@@ -2498,7 +2520,7 @@ static char SPLIT_ARG_WHEN_OLD[1];
**/
char *safe_arg(const char *opt, const char *arg)
{
-#define SHELL_CHARS "!#$&;|<>(){}\"' \t\\"
+#define SHELL_CHARS "!#$&;|<>(){}\"'` \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;
@@ -2510,7 +2532,7 @@ char *safe_arg(const char *opt, const char *arg)
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 == '~'
+ if (*arg == '~' && is_filename_arg && !am_sender && !trust_sender_args
&& ((relative_paths && !strstr(arg, "/./"))
|| !strchr(arg, '/'))) {
extras++;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 08:23:57 +0000