1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2014 Michael Biebl
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include "unit-name.h"
34 } arg_action
= ACTION_ESCAPE
;
35 static const char *arg_suffix
= NULL
;
36 static const char *arg_template
= NULL
;
37 static bool arg_path
= false;
39 static void help(void) {
40 printf("%s [OPTIONS...] [NAME...]\n\n"
41 "Show system and user paths.\n\n"
42 " -h --help Show this help\n"
43 " --version Show package version\n"
44 " --suffix=SUFFIX Unit suffix to append to escaped strings\n"
45 " --template=TEMPLATE Insert strings as instance into template\n"
46 " -u --unescape Unescape strings\n"
47 " -m --mangle Mangle strings\n"
48 " -p --path When escaping/unescaping assume the string is a path\n"
49 , program_invocation_short_name
);
52 static int parse_argv(int argc
, char *argv
[]) {
60 static const struct option options
[] = {
61 { "help", no_argument
, NULL
, 'h' },
62 { "version", no_argument
, NULL
, ARG_VERSION
},
63 { "suffix", required_argument
, NULL
, ARG_SUFFIX
},
64 { "template", required_argument
, NULL
, ARG_TEMPLATE
},
65 { "unescape", no_argument
, NULL
, 'u' },
66 { "mangle", no_argument
, NULL
, 'm' },
67 { "path", no_argument
, NULL
, 'p' },
76 while ((c
= getopt_long(argc
, argv
, "hump", options
, NULL
)) >= 0)
89 if (unit_type_from_string(optarg
) < 0) {
90 log_error("Invalid unit suffix type %s.", optarg
);
99 if (!unit_name_is_valid(optarg
, UNIT_NAME_TEMPLATE
)) {
100 log_error("Template name %s is not valid.", optarg
);
104 arg_template
= optarg
;
108 arg_action
= ACTION_UNESCAPE
;
112 arg_action
= ACTION_MANGLE
;
123 assert_not_reached("Unhandled option");
126 if (optind
>= argc
) {
127 log_error("Not enough arguments.");
131 if (arg_template
&& arg_suffix
) {
132 log_error("--suffix= and --template= may not be combined.");
136 if ((arg_template
|| arg_suffix
) && arg_action
!= ACTION_ESCAPE
) {
137 log_error("--suffix= and --template= are not compatible with --unescape or --mangle.");
141 if (arg_path
&& !IN_SET(arg_action
, ACTION_ESCAPE
, ACTION_UNESCAPE
)) {
142 log_error("--path may not be combined with --mangle.");
149 int main(int argc
, char *argv
[]) {
153 log_parse_environment();
156 r
= parse_argv(argc
, argv
);
160 STRV_FOREACH(i
, argv
+ optind
) {
161 _cleanup_free_
char *e
= NULL
;
163 switch (arg_action
) {
167 r
= unit_name_path_escape(*i
, &e
);
169 log_error_errno(r
, "Failed to escape string: %m");
173 e
= unit_name_escape(*i
);
183 r
= unit_name_replace_instance(arg_template
, e
, &x
);
185 log_error_errno(r
, "Failed to replace instance: %m");
191 } else if (arg_suffix
) {
194 x
= strjoin(e
, ".", arg_suffix
, NULL
);
206 case ACTION_UNESCAPE
:
208 r
= unit_name_path_unescape(*i
, &e
);
210 r
= unit_name_unescape(*i
, &e
);
213 log_error_errno(r
, "Failed to unescape string: %m");
219 r
= unit_name_mangle(*i
, UNIT_NAME_NOGLOB
, &e
);
221 log_error_errno(r
, "Failed to mangle name: %m");
227 if (i
!= argv
+optind
)
236 return r
< 0 ? EXIT_FAILURE
: EXIT_SUCCESS
;