[thirdparty/systemd.git] / src / path / path.c

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2014 Lennart Poettering

  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 <stdio.h>
#include <getopt.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>

#include "sd-path.h"
#include "build.h"
#include "macro.h"
#include "util.h"
#include "log.h"

static const char *arg_suffix = NULL;

static const char* const path_table[_SD_PATH_MAX] = {
        [SD_PATH_TEMPORARY] = "temporary",
        [SD_PATH_TEMPORARY_LARGE] = "temporary-large",
        [SD_PATH_SYSTEM_BINARIES] = "system-binaries",
        [SD_PATH_SYSTEM_INCLUDE] = "system-include",
        [SD_PATH_SYSTEM_LIBRARY_PRIVATE] = "system-library-private",
        [SD_PATH_SYSTEM_LIBRARY_ARCH] = "system-library-arch",
        [SD_PATH_SYSTEM_SHARED] = "system-shared",
        [SD_PATH_SYSTEM_CONFIGURATION_FACTORY] = "system-configuration-factory",
        [SD_PATH_SYSTEM_STATE_FACTORY] = "system-state-factory",
        [SD_PATH_SYSTEM_CONFIGURATION] = "system-configuration",
        [SD_PATH_SYSTEM_RUNTIME] = "system-runtime",
        [SD_PATH_SYSTEM_RUNTIME_LOGS] = "system-runtime-logs",
        [SD_PATH_SYSTEM_STATE_PRIVATE] = "system-state-private",
        [SD_PATH_SYSTEM_STATE_LOGS] = "system-state-logs",
        [SD_PATH_SYSTEM_STATE_CACHE] = "system-state-cache",
        [SD_PATH_SYSTEM_STATE_SPOOL] = "system-state-spool",
        [SD_PATH_USER_BINARIES] = "user-binaries",
        [SD_PATH_USER_LIBRARY_PRIVATE] = "user-library-private",
        [SD_PATH_USER_LIBRARY_ARCH] = "user-library-arch",
        [SD_PATH_USER_SHARED] = "user-shared",
        [SD_PATH_USER_CONFIGURATION] = "user-configuration",
        [SD_PATH_USER_RUNTIME] = "user-runtime",
        [SD_PATH_USER_STATE_CACHE] = "user-state-cache",
        [SD_PATH_USER] = "user",
        [SD_PATH_USER_DOCUMENTS] = "user-documents",
        [SD_PATH_USER_MUSIC] = "user-music",
        [SD_PATH_USER_PICTURES] = "user-pictures",
        [SD_PATH_USER_VIDEOS] = "user-videos",
        [SD_PATH_USER_DOWNLOAD] = "user-download",
        [SD_PATH_USER_PUBLIC] = "user-public",
        [SD_PATH_USER_TEMPLATES] = "user-templates",
        [SD_PATH_USER_DESKTOP] = "user-desktop",
        [SD_PATH_SEARCH_BINARIES] = "search-binaries",
        [SD_PATH_SEARCH_LIBRARY_PRIVATE] = "search-library-private",
        [SD_PATH_SEARCH_LIBRARY_ARCH] = "search-library-arch",
        [SD_PATH_SEARCH_SHARED] = "search-shared",
        [SD_PATH_SEARCH_CONFIGURATION_FACTORY] = "search-configuration-factory",
        [SD_PATH_SEARCH_STATE_FACTORY] = "search-state-factory",
        [SD_PATH_SEARCH_CONFIGURATION] = "search-configuration",
};

static int list_homes(void) {
        uint64_t i = 0;
        int r = 0;

        for (i = 0; i < ELEMENTSOF(path_table); i++) {
                _cleanup_free_ char *p = NULL;
                int q;

                q = sd_path_home(i, arg_suffix, &p);
                if (q == -ENXIO)
                        continue;
                if (q < 0) {
                        log_error_errno(r, "Failed to query %s: %m", path_table[i]);
                        r = q;
                        continue;
                }

                printf("%s: %s\n", path_table[i], p);
        }

        return r;
}

static int print_home(const char *n) {
        uint64_t i = 0;
        int r;

        for (i = 0; i < ELEMENTSOF(path_table); i++) {
                if (streq(path_table[i], n)) {
                        _cleanup_free_ char *p = NULL;

                        r = sd_path_home(i, arg_suffix, &p);
                        if (r < 0) {
                                log_error_errno(r, "Failed to query %s: %m", n);
                                return r;
                        }

                        printf("%s\n", p);
                        return 0;
                }
        }

        log_error("Path %s not known.", n);
        return -ENOTSUP;
}

static void help(void) {
        printf("%s [OPTIONS...] [NAME...]\n\n"
               "Show system and user paths.\n\n"
               "  -h --help             Show this help\n"
               "     --version          Show package version\n"
               "     --suffix=SUFFIX    Suffix to append to paths\n",
               program_invocation_short_name);
}

static int parse_argv(int argc, char *argv[]) {

        enum {
                ARG_VERSION = 0x100,
                ARG_SUFFIX,
        };

        static const struct option options[] = {
                { "help",      no_argument,       NULL, 'h'           },
                { "version",   no_argument,       NULL, ARG_VERSION   },
                { "suffix",    required_argument, NULL, ARG_SUFFIX    },
                {}
        };

        int c;

        assert(argc >= 0);
        assert(argv);

        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)

                switch (c) {

                case 'h':
                        help();
                        return 0;

                case ARG_VERSION:
                        puts(PACKAGE_STRING);
                        puts(SYSTEMD_FEATURES);
                        return 0;

                case ARG_SUFFIX:
                        arg_suffix = optarg;
                        break;

                case '?':
                        return -EINVAL;

                default:
                        assert_not_reached("Unhandled option");
                }

        return 1;
}

int main(int argc, char* argv[]) {
        int r;

        log_parse_environment();
        log_open();

        r = parse_argv(argc, argv);
        if (r <= 0)
                goto finish;

        if (argc > optind) {
                int i, q;

                for (i = optind; i < argc; i++) {
                        q = print_home(argv[i]);
                        if (q < 0)
                                r = q;
                }
        } else
                r = list_homes();


finish:
        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
Commit	Line	Data
9a00f57a LP	1	/-- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil --/
	2
	3	/***
	4	This file is part of systemd.
	5
	6	Copyright 2014 Lennart Poettering
	7
	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.
	12
	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.
	17
	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/>.
	20	***/
	21
	22	#include <stdio.h>
	23	#include <getopt.h>
9a00f57a LP	24	#include <errno.h>
	25	#include <unistd.h>
	26	#include <stdlib.h>
	27	#include <string.h>
	28
	29	#include "sd-path.h"
	30	#include "build.h"
	31	#include "macro.h"
	32	#include "util.h"
	33	#include "log.h"
	34
	35	static const char *arg_suffix = NULL;
	36
	37	static const char* const path_table[_SD_PATH_MAX] = {
	38	[SD_PATH_TEMPORARY] = "temporary",
	39	[SD_PATH_TEMPORARY_LARGE] = "temporary-large",
	40	[SD_PATH_SYSTEM_BINARIES] = "system-binaries",
	41	[SD_PATH_SYSTEM_INCLUDE] = "system-include",
	42	[SD_PATH_SYSTEM_LIBRARY_PRIVATE] = "system-library-private",
	43	[SD_PATH_SYSTEM_LIBRARY_ARCH] = "system-library-arch",
	44	[SD_PATH_SYSTEM_SHARED] = "system-shared",
	45	[SD_PATH_SYSTEM_CONFIGURATION_FACTORY] = "system-configuration-factory",
	46	[SD_PATH_SYSTEM_STATE_FACTORY] = "system-state-factory",
	47	[SD_PATH_SYSTEM_CONFIGURATION] = "system-configuration",
	48	[SD_PATH_SYSTEM_RUNTIME] = "system-runtime",
	49	[SD_PATH_SYSTEM_RUNTIME_LOGS] = "system-runtime-logs",
	50	[SD_PATH_SYSTEM_STATE_PRIVATE] = "system-state-private",
	51	[SD_PATH_SYSTEM_STATE_LOGS] = "system-state-logs",
	52	[SD_PATH_SYSTEM_STATE_CACHE] = "system-state-cache",
	53	[SD_PATH_SYSTEM_STATE_SPOOL] = "system-state-spool",
	54	[SD_PATH_USER_BINARIES] = "user-binaries",
	55	[SD_PATH_USER_LIBRARY_PRIVATE] = "user-library-private",
	56	[SD_PATH_USER_LIBRARY_ARCH] = "user-library-arch",
	57	[SD_PATH_USER_SHARED] = "user-shared",
	58	[SD_PATH_USER_CONFIGURATION] = "user-configuration",
	59	[SD_PATH_USER_RUNTIME] = "user-runtime",
	60	[SD_PATH_USER_STATE_CACHE] = "user-state-cache",
	61	[SD_PATH_USER] = "user",
	62	[SD_PATH_USER_DOCUMENTS] = "user-documents",
	63	[SD_PATH_USER_MUSIC] = "user-music",
	64	[SD_PATH_USER_PICTURES] = "user-pictures",
	65	[SD_PATH_USER_VIDEOS] = "user-videos",
	66	[SD_PATH_USER_DOWNLOAD] = "user-download",
	67	[SD_PATH_USER_PUBLIC] = "user-public",
	68	[SD_PATH_USER_TEMPLATES] = "user-templates",
	69	[SD_PATH_USER_DESKTOP] = "user-desktop",
	70	[SD_PATH_SEARCH_BINARIES] = "search-binaries",
	71	[SD_PATH_SEARCH_LIBRARY_PRIVATE] = "search-library-private",
	72	[SD_PATH_SEARCH_LIBRARY_ARCH] = "search-library-arch",
	73	[SD_PATH_SEARCH_SHARED] = "search-shared",
	74	[SD_PATH_SEARCH_CONFIGURATION_FACTORY] = "search-configuration-factory",
	75	[SD_PATH_SEARCH_STATE_FACTORY] = "search-state-factory",
	76	[SD_PATH_SEARCH_CONFIGURATION] = "search-configuration",
	77	};
	78
9a00f57a LP	79	static int list_homes(void) {
	80	uint64_t i = 0;
	81	int r = 0;
	82
	83	for (i = 0; i < ELEMENTSOF(path_table); i++) {
	84	_cleanup_free_ char *p = NULL;
	85	int q;
	86
	87	q = sd_path_home(i, arg_suffix, &p);
	88	if (q == -ENXIO)
	89	continue;
	90	if (q < 0) {
da927ba9	91	log_error_errno(r, "Failed to query %s: %m", path_table[i]);
9a00f57a LP	92	r = q;
	93	continue;
	94	}
	95
	96	printf("%s: %s\n", path_table[i], p);
	97	}
	98
	99	return r;
	100	}
	101
	102	static int print_home(const char *n) {
	103	uint64_t i = 0;
	104	int r;
	105
	106	for (i = 0; i < ELEMENTSOF(path_table); i++) {
	107	if (streq(path_table[i], n)) {
	108	_cleanup_free_ char *p = NULL;
	109
	110	r = sd_path_home(i, arg_suffix, &p);
	111	if (r < 0) {
da927ba9	112	log_error_errno(r, "Failed to query %s: %m", n);
9a00f57a LP	113	return r;
	114	}
	115
	116	printf("%s\n", p);
	117	return 0;
	118	}
	119	}
	120
	121	log_error("Path %s not known.", n);
	122	return -ENOTSUP;
	123	}
	124
601185b4 ZJS	125	static void help(void) {
	126	printf("%s [OPTIONS...] [NAME...]\n\n"
	127	"Show system and user paths.\n\n"
	128	" -h --help Show this help\n"
	129	" --version Show package version\n"
	130	" --suffix=SUFFIX Suffix to append to paths\n",
	131	program_invocation_short_name);
	132	}
	133
9a00f57a LP	134	static int parse_argv(int argc, char *argv[]) {
	135
	136	enum {
	137	ARG_VERSION = 0x100,
	138	ARG_SUFFIX,
	139	};
	140
	141	static const struct option options[] = {
	142	{ "help", no_argument, NULL, 'h' },
	143	{ "version", no_argument, NULL, ARG_VERSION },
	144	{ "suffix", required_argument, NULL, ARG_SUFFIX },
	145	{}
	146	};
	147
	148	int c;
	149
	150	assert(argc >= 0);
	151	assert(argv);
	152
601185b4	153	while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
9a00f57a LP	154
	155	switch (c) {
	156
	157	case 'h':
601185b4 ZJS	158	help();
601185b4 ZJS	159	return 0;
9a00f57a LP	160
	161	case ARG_VERSION:
	162	puts(PACKAGE_STRING);
	163	puts(SYSTEMD_FEATURES);
	164	return 0;
	165
	166	case ARG_SUFFIX:
	167	arg_suffix = optarg;
	168	break;
	169
	170	case '?':
	171	return -EINVAL;
	172
	173	default:
	174	assert_not_reached("Unhandled option");
	175	}
9a00f57a LP	176
	177	return 1;
	178	}
	179
	180	int main(int argc, char* argv[]) {
	181	int r;
	182
	183	log_parse_environment();
	184	log_open();
	185
	186	r = parse_argv(argc, argv);
	187	if (r <= 0)
	188	goto finish;
	189
	190	if (argc > optind) {
	191	int i, q;
	192
	193	for (i = optind; i < argc; i++) {
	194	q = print_home(argv[i]);
	195	if (q < 0)
	196	r = q;
	197	}
	198	} else
	199	r = list_homes();
	200
	201
	202	finish:
	203	return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
	204	}