/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- This file is part of systemd.
-
- Copyright 2014 Michael Biebl
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
#include <getopt.h>
#include <stdio.h>
#include "alloc-util.h"
#include "log.h"
+#include "main-func.h"
+#include "pretty-print.h"
#include "string-util.h"
#include "strv.h"
#include "unit-name.h"
static const char *arg_suffix = NULL;
static const char *arg_template = NULL;
static bool arg_path = false;
+static bool arg_instance = false;
+
+static int help(void) {
+ _cleanup_free_ char *link = NULL;
+ int r;
+
+ r = terminal_urlify_man("systemd-escape", "1", &link);
+ if (r < 0)
+ return log_oom();
-static void help(void) {
printf("%s [OPTIONS...] [NAME...]\n\n"
"Escape strings for usage in systemd unit names.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" --suffix=SUFFIX Unit suffix to append to escaped strings\n"
" --template=TEMPLATE Insert strings as instance into template\n"
+ " --instance With --unescape, show just the instance part\n"
" -u --unescape Unescape strings\n"
" -m --mangle Mangle strings\n"
" -p --path When escaping/unescaping assume the string is a path\n"
- , program_invocation_short_name);
+ "\nSee the %s for details.\n"
+ , program_invocation_short_name
+ , link
+ );
+
+ return 0;
}
static int parse_argv(int argc, char *argv[]) {
{ "unescape", no_argument, NULL, 'u' },
{ "mangle", no_argument, NULL, 'm' },
{ "path", no_argument, NULL, 'p' },
+ { "instance", no_argument, NULL, 'i' },
{}
};
switch (c) {
case 'h':
- help();
- return 0;
+ return help();
case ARG_VERSION:
return version();
case ARG_SUFFIX:
- if (unit_type_from_string(optarg) < 0) {
- log_error("Invalid unit suffix type %s.", optarg);
- return -EINVAL;
- }
+ if (unit_type_from_string(optarg) < 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Invalid unit suffix type %s.", optarg);
arg_suffix = optarg;
break;
case ARG_TEMPLATE:
- if (!unit_name_is_valid(optarg, UNIT_NAME_TEMPLATE)) {
- log_error("Template name %s is not valid.", optarg);
- return -EINVAL;
- }
+ if (!unit_name_is_valid(optarg, UNIT_NAME_TEMPLATE))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Template name %s is not valid.", optarg);
arg_template = optarg;
break;
arg_path = true;
break;
+ case 'i':
+ arg_instance = true;
+ break;
+
case '?':
return -EINVAL;
assert_not_reached("Unhandled option");
}
- if (optind >= argc) {
- log_error("Not enough arguments.");
- return -EINVAL;
- }
+ if (optind >= argc)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Not enough arguments.");
- if (arg_template && arg_suffix) {
- log_error("--suffix= and --template= may not be combined.");
- return -EINVAL;
- }
+ if (arg_template && arg_suffix)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--suffix= and --template= may not be combined.");
- if ((arg_template || arg_suffix) && arg_action != ACTION_ESCAPE) {
- log_error("--suffix= and --template= are not compatible with --unescape or --mangle.");
- return -EINVAL;
- }
+ if ((arg_template || arg_suffix) && arg_action == ACTION_MANGLE)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--suffix= and --template= are not compatible with --mangle.");
- if (arg_path && !IN_SET(arg_action, ACTION_ESCAPE, ACTION_UNESCAPE)) {
- log_error("--path may not be combined with --mangle.");
- return -EINVAL;
- }
+ if (arg_suffix && arg_action == ACTION_UNESCAPE)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--suffix is not compatible with --unescape.");
+
+ if (arg_path && !IN_SET(arg_action, ACTION_ESCAPE, ACTION_UNESCAPE))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--path may not be combined with --mangle.");
+
+ if (arg_instance && arg_action != ACTION_UNESCAPE)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--instance must be used in conjunction with --unescape.");
+
+ if (arg_instance && arg_template)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--instance may not be combined with --template.");
return 1;
}
-int main(int argc, char *argv[]) {
+static int run(int argc, char *argv[]) {
char **i;
int r;
- log_parse_environment();
- log_open();
+ log_setup_cli();
r = parse_argv(argc, argv);
if (r <= 0)
- goto finish;
+ return r;
STRV_FOREACH(i, argv + optind) {
_cleanup_free_ char *e = NULL;
case ACTION_ESCAPE:
if (arg_path) {
r = unit_name_path_escape(*i, &e);
- if (r < 0) {
- log_error_errno(r, "Failed to escape string: %m");
- goto finish;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to escape string: %m");
} else {
e = unit_name_escape(*i);
- if (!e) {
- r = log_oom();
- goto finish;
- }
+ if (!e)
+ return log_oom();
}
if (arg_template) {
char *x;
r = unit_name_replace_instance(arg_template, e, &x);
- if (r < 0) {
- log_error_errno(r, "Failed to replace instance: %m");
- goto finish;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to replace instance: %m");
- free(e);
- e = x;
+ free_and_replace(e, x);
} else if (arg_suffix) {
char *x;
x = strjoin(e, ".", arg_suffix);
- if (!x) {
- r = log_oom();
- goto finish;
- }
+ if (!x)
+ return log_oom();
- free(e);
- e = x;
+ free_and_replace(e, x);
}
break;
- case ACTION_UNESCAPE:
+ case ACTION_UNESCAPE: {
+ _cleanup_free_ char *name = NULL;
+
+ if (arg_template || arg_instance) {
+ _cleanup_free_ char *template = NULL;
+
+ r = unit_name_to_instance(*i, &name);
+ if (r < 0)
+ return log_error_errno(r, "Failed to extract instance: %m");
+ if (isempty(name))
+ return log_error("Unit %s is missing the instance name.", *i);
+
+ r = unit_name_template(*i, &template);
+ if (r < 0)
+ return log_error_errno(r, "Failed to extract template: %m");
+ if (arg_template && !streq(arg_template, template))
+ return log_error("Unit %s template %s does not match specified template %s.",
+ *i, template, arg_template);
+ } else {
+ name = strdup(*i);
+ if (!name)
+ return log_oom();
+ }
+
if (arg_path)
- r = unit_name_path_unescape(*i, &e);
+ r = unit_name_path_unescape(name, &e);
else
- r = unit_name_unescape(*i, &e);
+ r = unit_name_unescape(name, &e);
+ if (r < 0)
+ return log_error_errno(r, "Failed to unescape string: %m");
- if (r < 0) {
- log_error_errno(r, "Failed to unescape string: %m");
- goto finish;
- }
break;
+ }
case ACTION_MANGLE:
- r = unit_name_mangle(*i, UNIT_NAME_NOGLOB, &e);
- if (r < 0) {
- log_error_errno(r, "Failed to mangle name: %m");
- goto finish;
- }
+ r = unit_name_mangle(*i, 0, &e);
+ if (r < 0)
+ return log_error_errno(r, "Failed to mangle name: %m");
+
break;
}
- if (i != argv+optind)
+ if (i != argv + optind)
fputc(' ', stdout);
fputs(e, stdout);
fputc('\n', stdout);
-finish:
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+ return 0;
}
+
+DEFINE_MAIN_FUNCTION(run);
projects / thirdparty / systemd.git / blobdiff