[thirdparty/systemd.git] / src / libsystemd / sd-path / sd-path.c

/* SPDX-License-Identifier: LGPL-2.1+ */

#include "sd-path.h"

#include "alloc-util.h"
#include "architecture.h"
#include "fd-util.h"
#include "fileio.h"
#include "fs-util.h"
#include "path-lookup.h"
#include "path-util.h"
#include "string-util.h"
#include "strv.h"
#include "user-util.h"
#include "util.h"

static int from_environment(const char *envname, const char *fallback, const char **ret) {
        assert(ret);

        if (envname) {
                const char *e;

                e = secure_getenv(envname);
                if (e && path_is_absolute(e)) {
                        *ret = e;
                        return 0;
                }
        }

        if (fallback) {
                *ret = fallback;
                return 0;
        }

        return -ENXIO;
}

static int from_home_dir(const char *envname, const char *suffix, char **buffer, const char **ret) {
        _cleanup_free_ char *h = NULL;
        char *cc = NULL;
        int r;

        assert(suffix);
        assert(buffer);
        assert(ret);

        if (envname) {
                const char *e = NULL;

                e = secure_getenv(envname);
                if (e && path_is_absolute(e)) {
                        *ret = e;
                        return 0;
                }
        }

        r = get_home_dir(&h);
        if (r < 0)
                return r;

        cc = path_join(h, suffix);
        if (!cc)
                return -ENOMEM;

        *buffer = cc;
        *ret = cc;
        return 0;
}

static int from_user_dir(const char *field, char **buffer, const char **ret) {
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_free_ char *b = NULL;
        _cleanup_free_ const char *fn = NULL;
        const char *c = NULL;
        size_t n;
        int r;

        assert(field);
        assert(buffer);
        assert(ret);

        r = from_home_dir("XDG_CONFIG_HOME", ".config", &b, &c);
        if (r < 0)
                return r;

        fn = path_join(c, "user-dirs.dirs");
        if (!fn)
                return -ENOMEM;

        f = fopen(fn, "re");
        if (!f) {
                if (errno == ENOENT)
                        goto fallback;

                return -errno;
        }

        /* This is an awful parse, but it follows closely what
         * xdg-user-dirs does upstream */

        n = strlen(field);
        for (;;) {
                _cleanup_free_ char *line = NULL;
                char *l, *p, *e;

                r = read_line(f, LONG_LINE_MAX, &line);
                if (r < 0)
                        return r;
                if (r == 0)
                        break;

                l = strstrip(line);

                if (!strneq(l, field, n))
                        continue;

                p = l + n;
                p += strspn(p, WHITESPACE);

                if (*p != '=')
                        continue;
                p++;

                p += strspn(p, WHITESPACE);

                if (*p != '"')
                        continue;
                p++;

                e = strrchr(p, '"');
                if (!e)
                        continue;
                *e = 0;

                /* Three syntaxes permitted: relative to $HOME, $HOME itself, and absolute path */
                if (startswith(p, "$HOME/")) {
                        _cleanup_free_ char *h = NULL;
                        char *cc;

                        r = get_home_dir(&h);
                        if (r < 0)
                                return r;

                        cc = path_join(h, p+5);
                        if (!cc)
                                return -ENOMEM;

                        *buffer = cc;
                        *ret = cc;
                        return 0;
                } else if (streq(p, "$HOME")) {

                        r = get_home_dir(buffer);
                        if (r < 0)
                                return r;

                        *ret = *buffer;
                        return 0;
                } else if (path_is_absolute(p)) {
                        char *copy;

                        copy = strdup(p);
                        if (!copy)
                                return -ENOMEM;

                        *buffer = copy;
                        *ret = copy;
                        return 0;
                }
        }

fallback:
        /* The desktop directory defaults to $HOME/Desktop, the others to $HOME */
        if (streq(field, "XDG_DESKTOP_DIR")) {
                _cleanup_free_ char *h = NULL;
                char *cc;

                r = get_home_dir(&h);
                if (r < 0)
                        return r;

                cc = path_join(h, "Desktop");
                if (!cc)
                        return -ENOMEM;

                *buffer = cc;
                *ret = cc;
        } else {

                r = get_home_dir(buffer);
                if (r < 0)
                        return r;

                *ret = *buffer;
        }

        return 0;
}

static int get_path(uint64_t type, char **buffer, const char **ret) {
        int r;

        assert(buffer);
        assert(ret);

        switch (type) {

        case SD_PATH_TEMPORARY:
                return tmp_dir(ret);

        case SD_PATH_TEMPORARY_LARGE:
                return var_tmp_dir(ret);

        case SD_PATH_SYSTEM_BINARIES:
                *ret = "/usr/bin";
                return 0;

        case SD_PATH_SYSTEM_INCLUDE:
                *ret = "/usr/include";
                return 0;

        case SD_PATH_SYSTEM_LIBRARY_PRIVATE:
                *ret = "/usr/lib";
                return 0;

        case SD_PATH_SYSTEM_LIBRARY_ARCH:
                *ret = LIBDIR;
                return 0;

        case SD_PATH_SYSTEM_SHARED:
                *ret = "/usr/share";
                return 0;

        case SD_PATH_SYSTEM_CONFIGURATION_FACTORY:
                *ret = "/usr/share/factory/etc";
                return 0;

        case SD_PATH_SYSTEM_STATE_FACTORY:
                *ret = "/usr/share/factory/var";
                return 0;

        case SD_PATH_SYSTEM_CONFIGURATION:
                *ret = "/etc";
                return 0;

        case SD_PATH_SYSTEM_RUNTIME:
                *ret = "/run";
                return 0;

        case SD_PATH_SYSTEM_RUNTIME_LOGS:
                *ret = "/run/log";
                return 0;

        case SD_PATH_SYSTEM_STATE_PRIVATE:
                *ret = "/var/lib";
                return 0;

        case SD_PATH_SYSTEM_STATE_LOGS:
                *ret = "/var/log";
                return 0;

        case SD_PATH_SYSTEM_STATE_CACHE:
                *ret = "/var/cache";
                return 0;

        case SD_PATH_SYSTEM_STATE_SPOOL:
                *ret = "/var/spool";
                return 0;

        case SD_PATH_USER_BINARIES:
                return from_home_dir(NULL, ".local/bin", buffer, ret);

        case SD_PATH_USER_LIBRARY_PRIVATE:
                return from_home_dir(NULL, ".local/lib", buffer, ret);

        case SD_PATH_USER_LIBRARY_ARCH:
                return from_home_dir(NULL, ".local/lib/" LIB_ARCH_TUPLE, buffer, ret);

        case SD_PATH_USER_SHARED:
                return from_home_dir("XDG_DATA_HOME", ".local/share", buffer, ret);

        case SD_PATH_USER_CONFIGURATION:
                return from_home_dir("XDG_CONFIG_HOME", ".config", buffer, ret);

        case SD_PATH_USER_RUNTIME:
                return from_environment("XDG_RUNTIME_DIR", NULL, ret);

        case SD_PATH_USER_STATE_CACHE:
                return from_home_dir("XDG_CACHE_HOME", ".cache", buffer, ret);

        case SD_PATH_USER:
                r = get_home_dir(buffer);
                if (r < 0)
                        return r;

                *ret = *buffer;
                return 0;

        case SD_PATH_USER_DOCUMENTS:
                return from_user_dir("XDG_DOCUMENTS_DIR", buffer, ret);

        case SD_PATH_USER_MUSIC:
                return from_user_dir("XDG_MUSIC_DIR", buffer, ret);

        case SD_PATH_USER_PICTURES:
                return from_user_dir("XDG_PICTURES_DIR", buffer, ret);

        case SD_PATH_USER_VIDEOS:
                return from_user_dir("XDG_VIDEOS_DIR", buffer, ret);

        case SD_PATH_USER_DOWNLOAD:
                return from_user_dir("XDG_DOWNLOAD_DIR", buffer, ret);

        case SD_PATH_USER_PUBLIC:
                return from_user_dir("XDG_PUBLICSHARE_DIR", buffer, ret);

        case SD_PATH_USER_TEMPLATES:
                return from_user_dir("XDG_TEMPLATES_DIR", buffer, ret);

        case SD_PATH_USER_DESKTOP:
                return from_user_dir("XDG_DESKTOP_DIR", buffer, ret);

        case SD_PATH_SYSTEMD_UTIL:
                *ret = ROOTPREFIX "/lib/systemd";
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_UNIT:
                *ret = SYSTEM_DATA_UNIT_PATH;
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_PRESET:
                *ret = ROOTPREFIX "/lib/systemd/system-preset";
                return 0;

        case SD_PATH_SYSTEMD_USER_UNIT:
                *ret = USER_DATA_UNIT_DIR;
                return 0;

        case SD_PATH_SYSTEMD_USER_PRESET:
                *ret = ROOTPREFIX "/lib/systemd/user-preset";
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_CONF:
                *ret = SYSTEM_CONFIG_UNIT_DIR;
                return 0;

        case SD_PATH_SYSTEMD_USER_CONF:
                *ret = USER_CONFIG_UNIT_DIR;
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_GENERATOR:
                *ret = SYSTEM_GENERATOR_DIR;
                return 0;

        case SD_PATH_SYSTEMD_USER_GENERATOR:
                *ret = USER_GENERATOR_DIR;
                return 0;

        case SD_PATH_SYSTEMD_SLEEP:
                *ret = ROOTPREFIX "/lib/systemd/system-sleep";
                return 0;

        case SD_PATH_SYSTEMD_SHUTDOWN:
                *ret = ROOTPREFIX "/lib/systemd/system-shutdown";
                return 0;

        /* FIXME: systemd.pc uses ${prefix}, but CONF_PATHS_NULSTR doesn't.
         *        Should ${prefix} use in systemd.pc be removed? */
        case SD_PATH_TMPFILES:
                *ret = "/usr/lib/tmpfiles.d";
                return 0;

        case SD_PATH_SYSUSERS:
                *ret = ROOTPREFIX "/lib/sysusers.d";
                return 0;

        case SD_PATH_SYSCTL:
                *ret = ROOTPREFIX "/lib/sysctl.d";
                return 0;

        case SD_PATH_BINFMT:
                *ret = ROOTPREFIX "/lib/binfmt.d";
                return 0;

        case SD_PATH_MODULES_LOAD:
                *ret = ROOTPREFIX "/lib/modules-load.d";
                return 0;

        case SD_PATH_CATALOG:
                *ret = "/usr/lib/systemd/catalog";
                return 0;
        }

        return -EOPNOTSUPP;
}

static int get_path_alloc(uint64_t type, const char *suffix, char **path) {
        _cleanup_free_ char *buffer = NULL;
        char *buffer2 = NULL;
        const char *ret;
        int r;

        assert(path);

        r = get_path(type, &buffer, &ret);
        if (r < 0)
                return r;

        if (suffix) {
                suffix += strspn(suffix, "/");
                buffer2 = path_join(ret, suffix);
                if (!buffer2)
                        return -ENOMEM;
        } else if (!buffer) {
                buffer = strdup(ret);
                if (!buffer)
                        return -ENOMEM;
        }

        *path = buffer2 ?: TAKE_PTR(buffer);
        return 0;
}

_public_ int sd_path_lookup(uint64_t type, const char *suffix, char **path) {
        int r;

        assert_return(path, -EINVAL);

        r = get_path_alloc(type, suffix, path);
        if (r != -EOPNOTSUPP)
                return r;

        /* Fall back to sd_path_lookup_strv */
        _cleanup_strv_free_ char **l = NULL;
        char *buffer;

        r = sd_path_lookup_strv(type, suffix, &l);
        if (r < 0)
                return r;

        buffer = strv_join(l, ":");
        if (!buffer)
                return -ENOMEM;

        *path = buffer;
        return 0;
}

static int search_from_environment(
                char ***list,
                const char *env_home,
                const char *home_suffix,
                const char *env_search,
                bool env_search_sufficient,
                const char *first, ...) {

        _cleanup_strv_free_ char **l = NULL;
        const char *e;
        char *h = NULL;
        int r;

        assert(list);

        if (env_search) {
                e = secure_getenv(env_search);
                if (e) {
                        l = strv_split(e, ":");
                        if (!l)
                                return -ENOMEM;

                        if (env_search_sufficient) {
                                *list = TAKE_PTR(l);
                                return 0;
                        }
                }
        }

        if (!l && first) {
                va_list ap;

                va_start(ap, first);
                l = strv_new_ap(first, ap);
                va_end(ap);

                if (!l)
                        return -ENOMEM;
        }

        if (env_home) {
                e = secure_getenv(env_home);
                if (e && path_is_absolute(e)) {
                        h = strdup(e);
                        if (!h)
                                return -ENOMEM;
                }
        }

        if (!h && home_suffix) {
                e = secure_getenv("HOME");
                if (e && path_is_absolute(e)) {
                        h = path_join(e, home_suffix);
                        if (!h)
                                return -ENOMEM;
                }
        }

        if (h) {
                r = strv_consume_prepend(&l, h);
                if (r < 0)
                        return -ENOMEM;
        }

        *list = TAKE_PTR(l);
        return 0;
}

#if HAVE_SPLIT_BIN
#  define ARRAY_SBIN_BIN(x) x "sbin", x "bin"
#else
#  define ARRAY_SBIN_BIN(x) x "bin"
#endif

static int get_search(uint64_t type, char ***list) {
        int r;

        assert(list);

        switch(type) {

        case SD_PATH_SEARCH_BINARIES:
                return search_from_environment(list,
                                               NULL,
                                               ".local/bin",
                                               "PATH",
                                               true,
                                               ARRAY_SBIN_BIN("/usr/local/"),
                                               ARRAY_SBIN_BIN("/usr/"),
#if HAVE_SPLIT_USR
                                               ARRAY_SBIN_BIN("/"),
#endif
                                               NULL);

        case SD_PATH_SEARCH_LIBRARY_PRIVATE:
                return search_from_environment(list,
                                               NULL,
                                               ".local/lib",
                                               NULL,
                                               false,
                                               "/usr/local/lib",
                                               "/usr/lib",
#if HAVE_SPLIT_USR
                                               "/lib",
#endif
                                               NULL);

        case SD_PATH_SEARCH_LIBRARY_ARCH:
                return search_from_environment(list,
                                               NULL,
                                               ".local/lib/" LIB_ARCH_TUPLE,
                                               "LD_LIBRARY_PATH",
                                               true,
                                               LIBDIR,
#if HAVE_SPLIT_USR
                                               ROOTLIBDIR,
#endif
                                               NULL);

        case SD_PATH_SEARCH_SHARED:
                return search_from_environment(list,
                                               "XDG_DATA_HOME",
                                               ".local/share",
                                               "XDG_DATA_DIRS",
                                               false,
                                               "/usr/local/share",
                                               "/usr/share",
                                               NULL);

        case SD_PATH_SEARCH_CONFIGURATION_FACTORY:
                return search_from_environment(list,
                                               NULL,
                                               NULL,
                                               NULL,
                                               false,
                                               "/usr/local/share/factory/etc",
                                               "/usr/share/factory/etc",
                                               NULL);

        case SD_PATH_SEARCH_STATE_FACTORY:
                return search_from_environment(list,
                                               NULL,
                                               NULL,
                                               NULL,
                                               false,
                                               "/usr/local/share/factory/var",
                                               "/usr/share/factory/var",
                                               NULL);

        case SD_PATH_SEARCH_CONFIGURATION:
                return search_from_environment(list,
                                               "XDG_CONFIG_HOME",
                                               ".config",
                                               "XDG_CONFIG_DIRS",
                                               false,
                                               "/etc",
                                               NULL);

        case SD_PATH_SEARCH_BINARIES_DEFAULT:
                return strv_from_nulstr(list, DEFAULT_PATH_NULSTR);

        case SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT:
        case SD_PATH_SYSTEMD_SEARCH_USER_UNIT: {
                _cleanup_(lookup_paths_free) LookupPaths lp = {};
                const UnitFileScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT ?
                                                    UNIT_FILE_SYSTEM : UNIT_FILE_USER;

                r = lookup_paths_init(&lp, scope, 0, NULL);
                if (r < 0)
                        return r;

                *list = TAKE_PTR(lp.search_path);
                return 0;
        }

        case SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR:
        case SD_PATH_SYSTEMD_SEARCH_USER_GENERATOR: {
                char **t;
                const UnitFileScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR ?
                                                    UNIT_FILE_SYSTEM : UNIT_FILE_USER;

                t = generator_binary_paths(scope);
                if (!t)
                        return -ENOMEM;

                *list = t;
                return 0;
        }

        case SD_PATH_SYSTEMD_SEARCH_NETWORK:
                return strv_from_nulstr(list, NETWORK_DIRS_NULSTR);

        }

        return -EOPNOTSUPP;
}

_public_ int sd_path_lookup_strv(uint64_t type, const char *suffix, char ***paths) {
        _cleanup_strv_free_ char **l = NULL, **n = NULL;
        int r;

        assert_return(paths, -EINVAL);

        r = get_search(type, &l);
        if (r == -EOPNOTSUPP) {
                _cleanup_free_ char *t = NULL;

                r = get_path_alloc(type, suffix, &t);
                if (r < 0)
                        return r;

                l = new(char*, 2);
                if (!l)
                        return -ENOMEM;
                l[0] = TAKE_PTR(t);
                l[1] = NULL;

                *paths = TAKE_PTR(l);
                return 0;

        } else if (r < 0)
                return r;

        if (!suffix) {
                *paths = TAKE_PTR(l);
                return 0;
        }

        n = new(char*, strv_length(l)+1);
        if (!n)
                return -ENOMEM;

        char **i, **j = n;
        STRV_FOREACH(i, l) {
                *j = path_join(*i, suffix);
                if (!*j)
                        return -ENOMEM;

                j++;
        }
        *j = NULL;

        *paths = TAKE_PTR(n);
        return 0;
}
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
9a00f57a	2
07630cea LP	3	#include "sd-path.h"
07630cea LP	4
b5efdb8a	5	#include "alloc-util.h"
9a00f57a	6	#include "architecture.h"
3ffd4af2	7	#include "fd-util.h"
0d39fa9c	8	#include "fileio.h"
fccb4486	9	#include "fs-util.h"
9c5bb203	10	#include "path-lookup.h"
9a00f57a	11	#include "path-util.h"
07630cea	12	#include "string-util.h"
9a00f57a	13	#include "strv.h"
b1d4f8e1	14	#include "user-util.h"
07630cea	15	#include "util.h"
9a00f57a LP	16
	17	static int from_environment(const char envname, const char fallback, const char **ret) {
	18	assert(ret);
	19
	20	if (envname) {
	21	const char *e;
	22
	23	e = secure_getenv(envname);
	24	if (e && path_is_absolute(e)) {
	25	*ret = e;
	26	return 0;
	27	}
	28	}
	29
	30	if (fallback) {
	31	*ret = fallback;
	32	return 0;
	33	}
	34
	35	return -ENXIO;
	36	}
	37
	38	static int from_home_dir(const char envname, const char suffix, char buffer, const char ret) {
	39	_cleanup_free_ char *h = NULL;
	40	char *cc = NULL;
	41	int r;
	42
	43	assert(suffix);
	44	assert(buffer);
	45	assert(ret);
	46
	47	if (envname) {
	48	const char *e = NULL;
	49
	50	e = secure_getenv(envname);
	51	if (e && path_is_absolute(e)) {
	52	*ret = e;
	53	return 0;
	54	}
	55	}
	56
	57	r = get_home_dir(&h);
	58	if (r < 0)
	59	return r;
	60
657ee2d8	61	cc = path_join(h, suffix);
9a00f57a LP	62	if (!cc)
	63	return -ENOMEM;
	64
	65	*buffer = cc;
	66	*ret = cc;
	67	return 0;
	68	}
	69
	70	static int from_user_dir(const char field, char buffer, const char *ret) {
	71	_cleanup_fclose_ FILE *f = NULL;
	72	_cleanup_free_ char *b = NULL;
b6b0cfaa EGP	73	_cleanup_free_ const char *fn = NULL;
b6b0cfaa EGP	74	const char *c = NULL;
9a00f57a LP	75	size_t n;
	76	int r;
	77
	78	assert(field);
	79	assert(buffer);
	80	assert(ret);
	81
b6b0cfaa	82	r = from_home_dir("XDG_CONFIG_HOME", ".config", &b, &c);
9a00f57a LP	83	if (r < 0)
	84	return r;
	85
b910cc72	86	fn = path_join(c, "user-dirs.dirs");
b6b0cfaa EGP	87	if (!fn)
	88	return -ENOMEM;
	89
9a00f57a LP	90	f = fopen(fn, "re");
	91	if (!f) {
	92	if (errno == ENOENT)
	93	goto fallback;
	94
	95	return -errno;
	96	}
	97
	98	/* This is an awful parse, but it follows closely what
	99	* xdg-user-dirs does upstream */
	100
	101	n = strlen(field);
710bf2ae LP	102	for (;;) {
710bf2ae LP	103	_cleanup_free_ char *line = NULL;
9a00f57a LP	104	char l, p, *e;
9a00f57a LP	105
710bf2ae LP	106	r = read_line(f, LONG_LINE_MAX, &line);
	107	if (r < 0)
	108	return r;
	109	if (r == 0)
	110	break;
	111
9a00f57a LP	112	l = strstrip(line);
	113
	114	if (!strneq(l, field, n))
	115	continue;
	116
	117	p = l + n;
	118	p += strspn(p, WHITESPACE);
	119
	120	if (*p != '=')
	121	continue;
	122	p++;
	123
	124	p += strspn(p, WHITESPACE);
	125
	126	if (*p != '"')
	127	continue;
	128	p++;
	129
	130	e = strrchr(p, '"');
	131	if (!e)
	132	continue;
	133	*e = 0;
	134
	135	/* Three syntaxes permitted: relative to $HOME, $HOME itself, and absolute path */
	136	if (startswith(p, "$HOME/")) {
	137	_cleanup_free_ char *h = NULL;
	138	char *cc;
	139
	140	r = get_home_dir(&h);
	141	if (r < 0)
	142	return r;
	143
b910cc72	144	cc = path_join(h, p+5);
9a00f57a LP	145	if (!cc)
	146	return -ENOMEM;
	147
	148	*buffer = cc;
	149	*ret = cc;
	150	return 0;
	151	} else if (streq(p, "$HOME")) {
	152
	153	r = get_home_dir(buffer);
	154	if (r < 0)
	155	return r;
	156
	157	ret = buffer;
	158	return 0;
	159	} else if (path_is_absolute(p)) {
	160	char *copy;
	161
	162	copy = strdup(p);
	163	if (!copy)
	164	return -ENOMEM;
	165
	166	*buffer = copy;
	167	*ret = copy;
	168	return 0;
	169	}
	170	}
	171
	172	fallback:
	173	/* The desktop directory defaults to $HOME/Desktop, the others to $HOME */
	174	if (streq(field, "XDG_DESKTOP_DIR")) {
	175	_cleanup_free_ char *h = NULL;
	176	char *cc;
	177
	178	r = get_home_dir(&h);
	179	if (r < 0)
	180	return r;
	181
b910cc72	182	cc = path_join(h, "Desktop");
9a00f57a LP	183	if (!cc)
	184	return -ENOMEM;
	185
	186	*buffer = cc;
	187	*ret = cc;
	188	} else {
	189
	190	r = get_home_dir(buffer);
	191	if (r < 0)
	192	return r;
	193
	194	ret = buffer;
	195	}
	196
	197	return 0;
	198	}
	199
	200	static int get_path(uint64_t type, char buffer, const char ret) {
	201	int r;
	202
	203	assert(buffer);
	204	assert(ret);
	205
	206	switch (type) {
	207
	208	case SD_PATH_TEMPORARY:
fccb4486	209	return tmp_dir(ret);
9a00f57a LP	210
9a00f57a LP	211	case SD_PATH_TEMPORARY_LARGE:
fccb4486	212	return var_tmp_dir(ret);
9a00f57a LP	213
	214	case SD_PATH_SYSTEM_BINARIES:
	215	*ret = "/usr/bin";
	216	return 0;
	217
	218	case SD_PATH_SYSTEM_INCLUDE:
	219	*ret = "/usr/include";
	220	return 0;
	221
	222	case SD_PATH_SYSTEM_LIBRARY_PRIVATE:
	223	*ret = "/usr/lib";
	224	return 0;
	225
	226	case SD_PATH_SYSTEM_LIBRARY_ARCH:
	227	*ret = LIBDIR;
	228	return 0;
	229
	230	case SD_PATH_SYSTEM_SHARED:
	231	*ret = "/usr/share";
	232	return 0;
	233
	234	case SD_PATH_SYSTEM_CONFIGURATION_FACTORY:
	235	*ret = "/usr/share/factory/etc";
	236	return 0;
	237
	238	case SD_PATH_SYSTEM_STATE_FACTORY:
	239	*ret = "/usr/share/factory/var";
	240	return 0;
	241
	242	case SD_PATH_SYSTEM_CONFIGURATION:
	243	*ret = "/etc";
	244	return 0;
	245
	246	case SD_PATH_SYSTEM_RUNTIME:
	247	*ret = "/run";
	248	return 0;
	249
	250	case SD_PATH_SYSTEM_RUNTIME_LOGS:
	251	*ret = "/run/log";
	252	return 0;
	253
	254	case SD_PATH_SYSTEM_STATE_PRIVATE:
	255	*ret = "/var/lib";
	256	return 0;
	257
	258	case SD_PATH_SYSTEM_STATE_LOGS:
	259	*ret = "/var/log";
	260	return 0;
	261
	262	case SD_PATH_SYSTEM_STATE_CACHE:
	263	*ret = "/var/cache";
	264	return 0;
	265
	266	case SD_PATH_SYSTEM_STATE_SPOOL:
	267	*ret = "/var/spool";
	268	return 0;
	269
	270	case SD_PATH_USER_BINARIES:
	271	return from_home_dir(NULL, ".local/bin", buffer, ret);
	272
	273	case SD_PATH_USER_LIBRARY_PRIVATE:
	274	return from_home_dir(NULL, ".local/lib", buffer, ret);
	275
	276	case SD_PATH_USER_LIBRARY_ARCH:
613e3a26	277	return from_home_dir(NULL, ".local/lib/" LIB_ARCH_TUPLE, buffer, ret);
9a00f57a LP	278
	279	case SD_PATH_USER_SHARED:
	280	return from_home_dir("XDG_DATA_HOME", ".local/share", buffer, ret);
	281
	282	case SD_PATH_USER_CONFIGURATION:
	283	return from_home_dir("XDG_CONFIG_HOME", ".config", buffer, ret);
	284
	285	case SD_PATH_USER_RUNTIME:
	286	return from_environment("XDG_RUNTIME_DIR", NULL, ret);
	287
	288	case SD_PATH_USER_STATE_CACHE:
	289	return from_home_dir("XDG_CACHE_HOME", ".cache", buffer, ret);
	290
	291	case SD_PATH_USER:
	292	r = get_home_dir(buffer);
	293	if (r < 0)
	294	return r;
	295
	296	ret = buffer;
	297	return 0;
	298
	299	case SD_PATH_USER_DOCUMENTS:
	300	return from_user_dir("XDG_DOCUMENTS_DIR", buffer, ret);
	301
	302	case SD_PATH_USER_MUSIC:
	303	return from_user_dir("XDG_MUSIC_DIR", buffer, ret);
	304
	305	case SD_PATH_USER_PICTURES:
	306	return from_user_dir("XDG_PICTURES_DIR", buffer, ret);
	307
	308	case SD_PATH_USER_VIDEOS:
	309	return from_user_dir("XDG_VIDEOS_DIR", buffer, ret);
	310
	311	case SD_PATH_USER_DOWNLOAD:
	312	return from_user_dir("XDG_DOWNLOAD_DIR", buffer, ret);
	313
	314	case SD_PATH_USER_PUBLIC:
	315	return from_user_dir("XDG_PUBLICSHARE_DIR", buffer, ret);
	316
	317	case SD_PATH_USER_TEMPLATES:
	318	return from_user_dir("XDG_TEMPLATES_DIR", buffer, ret);
	319
	320	case SD_PATH_USER_DESKTOP:
	321	return from_user_dir("XDG_DESKTOP_DIR", buffer, ret);
9c5bb203	322
ccdf03b9	323	case SD_PATH_SYSTEMD_UTIL:
4a56315a	324	*ret = ROOTPREFIX "/lib/systemd";
9c5bb203 ZJS	325	return 0;
9c5bb203 ZJS	326
ccdf03b9	327	case SD_PATH_SYSTEMD_SYSTEM_UNIT:
9c5bb203 ZJS	328	*ret = SYSTEM_DATA_UNIT_PATH;
	329	return 0;
	330
ccdf03b9	331	case SD_PATH_SYSTEMD_SYSTEM_PRESET:
4a56315a	332	*ret = ROOTPREFIX "/lib/systemd/system-preset";
9c5bb203 ZJS	333	return 0;
9c5bb203 ZJS	334
ccdf03b9	335	case SD_PATH_SYSTEMD_USER_UNIT:
96d33e4a	336	*ret = USER_DATA_UNIT_DIR;
9c5bb203 ZJS	337	return 0;
9c5bb203 ZJS	338
ccdf03b9	339	case SD_PATH_SYSTEMD_USER_PRESET:
4a56315a	340	*ret = ROOTPREFIX "/lib/systemd/user-preset";
9c5bb203 ZJS	341	return 0;
9c5bb203 ZJS	342
ccdf03b9	343	case SD_PATH_SYSTEMD_SYSTEM_CONF:
96d33e4a	344	*ret = SYSTEM_CONFIG_UNIT_DIR;
9c5bb203 ZJS	345	return 0;
9c5bb203 ZJS	346
ccdf03b9	347	case SD_PATH_SYSTEMD_USER_CONF:
96d33e4a	348	*ret = USER_CONFIG_UNIT_DIR;
9c5bb203 ZJS	349	return 0;
9c5bb203 ZJS	350
ccdf03b9	351	case SD_PATH_SYSTEMD_SYSTEM_GENERATOR:
96d33e4a	352	*ret = SYSTEM_GENERATOR_DIR;
9c5bb203 ZJS	353	return 0;
9c5bb203 ZJS	354
ccdf03b9	355	case SD_PATH_SYSTEMD_USER_GENERATOR:
96d33e4a	356	*ret = USER_GENERATOR_DIR;
9c5bb203 ZJS	357	return 0;
9c5bb203 ZJS	358
ccdf03b9	359	case SD_PATH_SYSTEMD_SLEEP:
4a56315a	360	*ret = ROOTPREFIX "/lib/systemd/system-sleep";
9c5bb203 ZJS	361	return 0;
9c5bb203 ZJS	362
ccdf03b9	363	case SD_PATH_SYSTEMD_SHUTDOWN:
4a56315a	364	*ret = ROOTPREFIX "/lib/systemd/system-shutdown";
9c5bb203 ZJS	365	return 0;
	366
	367	/* FIXME: systemd.pc uses ${prefix}, but CONF_PATHS_NULSTR doesn't.
	368	* Should ${prefix} use in systemd.pc be removed? */
ccdf03b9	369	case SD_PATH_TMPFILES:
9c5bb203 ZJS	370	*ret = "/usr/lib/tmpfiles.d";
	371	return 0;
	372
ccdf03b9	373	case SD_PATH_SYSUSERS:
4a56315a	374	*ret = ROOTPREFIX "/lib/sysusers.d";
9c5bb203 ZJS	375	return 0;
9c5bb203 ZJS	376
ccdf03b9	377	case SD_PATH_SYSCTL:
4a56315a	378	*ret = ROOTPREFIX "/lib/sysctl.d";
9c5bb203 ZJS	379	return 0;
9c5bb203 ZJS	380
ccdf03b9	381	case SD_PATH_BINFMT:
4a56315a	382	*ret = ROOTPREFIX "/lib/binfmt.d";
9c5bb203 ZJS	383	return 0;
9c5bb203 ZJS	384
ccdf03b9	385	case SD_PATH_MODULES_LOAD:
4a56315a	386	*ret = ROOTPREFIX "/lib/modules-load.d";
9c5bb203 ZJS	387	return 0;
9c5bb203 ZJS	388
ccdf03b9	389	case SD_PATH_CATALOG:
9c5bb203 ZJS	390	*ret = "/usr/lib/systemd/catalog";
9c5bb203 ZJS	391	return 0;
9a00f57a LP	392	}
9a00f57a LP	393
15411c0c	394	return -EOPNOTSUPP;
9a00f57a LP	395	}
9a00f57a LP	396
ce7eb6aa	397	static int get_path_alloc(uint64_t type, const char suffix, char *path) {
a13de89d	398	_cleanup_free_ char *buffer = NULL;
ce7eb6aa	399	char *buffer2 = NULL;
9a00f57a LP	400	const char *ret;
	401	int r;
	402
ce7eb6aa	403	assert(path);
9a00f57a	404
ce7eb6aa ZJS	405	r = get_path(type, &buffer, &ret);
	406	if (r < 0)
	407	return r;
9a00f57a	408
ce7eb6aa ZJS	409	if (suffix) {
	410	suffix += strspn(suffix, "/");
	411	buffer2 = path_join(ret, suffix);
	412	if (!buffer2)
	413	return -ENOMEM;
	414	} else if (!buffer) {
	415	buffer = strdup(ret);
9a00f57a LP	416	if (!buffer)
9a00f57a LP	417	return -ENOMEM;
9a00f57a LP	418	}
9a00f57a LP	419
ce7eb6aa ZJS	420	*path = buffer2 ?: TAKE_PTR(buffer);
	421	return 0;
	422	}
	423
	424	_public_ int sd_path_lookup(uint64_t type, const char suffix, char *path) {
	425	int r;
	426
	427	assert_return(path, -EINVAL);
	428
	429	r = get_path_alloc(type, suffix, path);
	430	if (r != -EOPNOTSUPP)
9a00f57a LP	431	return r;
9a00f57a LP	432
ce7eb6aa ZJS	433	/* Fall back to sd_path_lookup_strv */
	434	_cleanup_strv_free_ char **l = NULL;
	435	char *buffer;
9a00f57a	436
ce7eb6aa ZJS	437	r = sd_path_lookup_strv(type, suffix, &l);
	438	if (r < 0)
	439	return r;
9a00f57a	440
ce7eb6aa ZJS	441	buffer = strv_join(l, ":");
ce7eb6aa ZJS	442	if (!buffer)
9a00f57a LP	443	return -ENOMEM;
9a00f57a LP	444
ce7eb6aa	445	*path = buffer;
9a00f57a LP	446	return 0;
	447	}
	448
	449	static int search_from_environment(
	450	char ***list,
	451	const char *env_home,
	452	const char *home_suffix,
	453	const char *env_search,
	454	bool env_search_sufficient,
	455	const char *first, ...) {
	456
623550af	457	_cleanup_strv_free_ char **l = NULL;
9a00f57a LP	458	const char *e;
9a00f57a LP	459	char *h = NULL;
9a00f57a LP	460	int r;
	461
	462	assert(list);
	463
	464	if (env_search) {
	465	e = secure_getenv(env_search);
	466	if (e) {
	467	l = strv_split(e, ":");
	468	if (!l)
	469	return -ENOMEM;
	470
	471	if (env_search_sufficient) {
623550af	472	*list = TAKE_PTR(l);
9a00f57a LP	473	return 0;
	474	}
	475	}
	476	}
	477
	478	if (!l && first) {
	479	va_list ap;
	480
	481	va_start(ap, first);
	482	l = strv_new_ap(first, ap);
	483	va_end(ap);
	484
	485	if (!l)
	486	return -ENOMEM;
	487	}
	488
	489	if (env_home) {
	490	e = secure_getenv(env_home);
	491	if (e && path_is_absolute(e)) {
	492	h = strdup(e);
623550af	493	if (!h)
9a00f57a	494	return -ENOMEM;
9a00f57a LP	495	}
	496	}
	497
	498	if (!h && home_suffix) {
	499	e = secure_getenv("HOME");
	500	if (e && path_is_absolute(e)) {
657ee2d8	501	h = path_join(e, home_suffix);
623550af	502	if (!h)
9a00f57a	503	return -ENOMEM;
9a00f57a LP	504	}
	505	}
	506
	507	if (h) {
	508	r = strv_consume_prepend(&l, h);
623550af	509	if (r < 0)
9a00f57a	510	return -ENOMEM;
9a00f57a LP	511	}
9a00f57a LP	512
623550af	513	*list = TAKE_PTR(l);
9a00f57a LP	514	return 0;
	515	}
	516
671f0f8d ZJS	517	#if HAVE_SPLIT_BIN
	518	# define ARRAY_SBIN_BIN(x) x "sbin", x "bin"
	519	#else
	520	# define ARRAY_SBIN_BIN(x) x "bin"
	521	#endif
	522
9a00f57a	523	static int get_search(uint64_t type, char ***list) {
9c5bb203	524	int r;
9a00f57a LP	525
	526	assert(list);
	527
	528	switch(type) {
	529
	530	case SD_PATH_SEARCH_BINARIES:
	531	return search_from_environment(list,
	532	NULL,
	533	".local/bin",
	534	"PATH",
	535	true,
671f0f8d ZJS	536	ARRAY_SBIN_BIN("/usr/local/"),
671f0f8d ZJS	537	ARRAY_SBIN_BIN("/usr/"),
349cc4a5	538	#if HAVE_SPLIT_USR
671f0f8d	539	ARRAY_SBIN_BIN("/"),
9a00f57a LP	540	#endif
	541	NULL);
	542
	543	case SD_PATH_SEARCH_LIBRARY_PRIVATE:
	544	return search_from_environment(list,
	545	NULL,
	546	".local/lib",
	547	NULL,
	548	false,
	549	"/usr/local/lib",
	550	"/usr/lib",
349cc4a5	551	#if HAVE_SPLIT_USR
9a00f57a LP	552	"/lib",
	553	#endif
	554	NULL);
	555
	556	case SD_PATH_SEARCH_LIBRARY_ARCH:
	557	return search_from_environment(list,
	558	NULL,
613e3a26	559	".local/lib/" LIB_ARCH_TUPLE,
9a00f57a LP	560	"LD_LIBRARY_PATH",
	561	true,
	562	LIBDIR,
349cc4a5	563	#if HAVE_SPLIT_USR
9a00f57a LP	564	ROOTLIBDIR,
	565	#endif
	566	NULL);
	567
	568	case SD_PATH_SEARCH_SHARED:
	569	return search_from_environment(list,
	570	"XDG_DATA_HOME",
	571	".local/share",
	572	"XDG_DATA_DIRS",
	573	false,
	574	"/usr/local/share",
	575	"/usr/share",
	576	NULL);
	577
	578	case SD_PATH_SEARCH_CONFIGURATION_FACTORY:
	579	return search_from_environment(list,
	580	NULL,
	581	NULL,
	582	NULL,
	583	false,
	584	"/usr/local/share/factory/etc",
	585	"/usr/share/factory/etc",
	586	NULL);
	587
	588	case SD_PATH_SEARCH_STATE_FACTORY:
	589	return search_from_environment(list,
	590	NULL,
	591	NULL,
	592	NULL,
	593	false,
	594	"/usr/local/share/factory/var",
	595	"/usr/share/factory/var",
	596	NULL);
	597
	598	case SD_PATH_SEARCH_CONFIGURATION:
	599	return search_from_environment(list,
	600	"XDG_CONFIG_HOME",
	601	".config",
	602	"XDG_CONFIG_DIRS",
	603	false,
	604	"/etc",
	605	NULL);
e12d446b	606
a7addf32 ZJS	607	case SD_PATH_SEARCH_BINARIES_DEFAULT:
a7addf32 ZJS	608	return strv_from_nulstr(list, DEFAULT_PATH_NULSTR);
e12d446b	609
ccdf03b9 LP	610	case SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT:
ccdf03b9 LP	611	case SD_PATH_SYSTEMD_SEARCH_USER_UNIT: {
9c5bb203	612	_cleanup_(lookup_paths_free) LookupPaths lp = {};
ccdf03b9	613	const UnitFileScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT ?
9c5bb203 ZJS	614	UNIT_FILE_SYSTEM : UNIT_FILE_USER;
	615
	616	r = lookup_paths_init(&lp, scope, 0, NULL);
	617	if (r < 0)
	618	return r;
e12d446b	619
9c5bb203 ZJS	620	*list = TAKE_PTR(lp.search_path);
9c5bb203 ZJS	621	return 0;
a7addf32	622	}
9a00f57a	623
ccdf03b9 LP	624	case SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR:
ccdf03b9 LP	625	case SD_PATH_SYSTEMD_SEARCH_USER_GENERATOR: {
9c5bb203	626	char **t;
ccdf03b9	627	const UnitFileScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR ?
9c5bb203 ZJS	628	UNIT_FILE_SYSTEM : UNIT_FILE_USER;
	629
	630	t = generator_binary_paths(scope);
	631	if (!t)
	632	return -ENOMEM;
	633
	634	*list = t;
	635	return 0;
f1bb691a ZJS	636	}
f1bb691a ZJS	637
ccdf03b9	638	case SD_PATH_SYSTEMD_SEARCH_NETWORK:
f1bb691a ZJS	639	return strv_from_nulstr(list, NETWORK_DIRS_NULSTR);
	640
	641	}
9c5bb203	642
15411c0c	643	return -EOPNOTSUPP;
9a00f57a LP	644	}
9a00f57a LP	645
51327bcc	646	_public_ int sd_path_lookup_strv(uint64_t type, const char suffix, char **paths) {
a605e46f	647	_cleanup_strv_free_ char l = NULL, n = NULL;
9a00f57a LP	648	int r;
	649
	650	assert_return(paths, -EINVAL);
	651
ce7eb6aa ZJS	652	r = get_search(type, &l);
	653	if (r == -EOPNOTSUPP) {
	654	_cleanup_free_ char *t = NULL;
9a00f57a	655
ce7eb6aa	656	r = get_path_alloc(type, suffix, &t);
9a00f57a LP	657	if (r < 0)
	658	return r;
	659
	660	l = new(char*, 2);
ce7eb6aa	661	if (!l)
9a00f57a	662	return -ENOMEM;
ce7eb6aa	663	l[0] = TAKE_PTR(t);
9a00f57a LP	664	l[1] = NULL;
9a00f57a LP	665
a605e46f	666	*paths = TAKE_PTR(l);
9a00f57a	667	return 0;
9a00f57a	668
ce7eb6aa	669	} else if (r < 0)
9a00f57a LP	670	return r;
	671
	672	if (!suffix) {
a605e46f	673	*paths = TAKE_PTR(l);
9a00f57a LP	674	return 0;
	675	}
	676
	677	n = new(char*, strv_length(l)+1);
a605e46f	678	if (!n)
9a00f57a	679	return -ENOMEM;
9a00f57a	680
ce7eb6aa	681	char i, j = n;
9a00f57a	682	STRV_FOREACH(i, l) {
657ee2d8	683	j = path_join(i, suffix);
a605e46f	684	if (!*j)
9a00f57a	685	return -ENOMEM;
9a00f57a LP	686
	687	j++;
	688	}
9a00f57a	689	*j = NULL;
ce7eb6aa	690
a605e46f	691	*paths = TAKE_PTR(n);
9a00f57a LP	692	return 0;
9a00f57a LP	693	}