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

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#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;
        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;

        if (!path_extend(&h, suffix))
                return -ENOMEM;

        *buffer = h;
        *ret = TAKE_PTR(h);
        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;

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

                        if (!path_extend(&h, p+5))
                                return -ENOMEM;

                        *buffer = h;
                        *ret = TAKE_PTR(h);
                        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;

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

                if (!path_extend(&h, "Desktop"))
                        return -ENOMEM;

                *buffer = h;
                *ret = TAKE_PTR(h);
        } 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_NOSLASH "/lib/systemd";
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_UNIT:
                *ret = SYSTEM_DATA_UNIT_DIR;
                return 0;

        case SD_PATH_SYSTEMD_SYSTEM_PRESET:
                *ret = ROOTPREFIX_NOSLASH "/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_NOSLASH "/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_NOSLASH "/lib/systemd/system-sleep";
                return 0;

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

        case SD_PATH_TMPFILES:
                *ret = "/usr/lib/tmpfiles.d";
                return 0;

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

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

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

        case SD_PATH_MODULES_LOAD:
                *ret = ROOTPREFIX_NOSLASH "/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 LookupScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT ?
                                                    LOOKUP_SCOPE_SYSTEM : LOOKUP_SCOPE_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 LookupScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR ?
                                                    LOOKUP_SCOPE_SYSTEM : LOOKUP_SCOPE_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 **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
db9ecf05	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
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;
9a00f57a LP	40	int r;
	41
	42	assert(suffix);
	43	assert(buffer);
	44	assert(ret);
	45
	46	if (envname) {
	47	const char *e = NULL;
	48
	49	e = secure_getenv(envname);
	50	if (e && path_is_absolute(e)) {
	51	*ret = e;
	52	return 0;
	53	}
	54	}
	55
	56	r = get_home_dir(&h);
	57	if (r < 0)
	58	return r;
	59
4ede9802	60	if (!path_extend(&h, suffix))
9a00f57a LP	61	return -ENOMEM;
9a00f57a LP	62
4ede9802 LP	63	*buffer = h;
4ede9802 LP	64	*ret = TAKE_PTR(h);
9a00f57a LP	65	return 0;
	66	}
	67
	68	static int from_user_dir(const char field, char buffer, const char *ret) {
	69	_cleanup_fclose_ FILE *f = NULL;
	70	_cleanup_free_ char *b = NULL;
b6b0cfaa EGP	71	_cleanup_free_ const char *fn = NULL;
b6b0cfaa EGP	72	const char *c = NULL;
9a00f57a LP	73	size_t n;
	74	int r;
	75
	76	assert(field);
	77	assert(buffer);
	78	assert(ret);
	79
b6b0cfaa	80	r = from_home_dir("XDG_CONFIG_HOME", ".config", &b, &c);
9a00f57a LP	81	if (r < 0)
	82	return r;
	83
b910cc72	84	fn = path_join(c, "user-dirs.dirs");
b6b0cfaa EGP	85	if (!fn)
	86	return -ENOMEM;
	87
9a00f57a LP	88	f = fopen(fn, "re");
	89	if (!f) {
	90	if (errno == ENOENT)
	91	goto fallback;
	92
	93	return -errno;
	94	}
	95
	96	/* This is an awful parse, but it follows closely what
	97	* xdg-user-dirs does upstream */
	98
	99	n = strlen(field);
710bf2ae LP	100	for (;;) {
710bf2ae LP	101	_cleanup_free_ char *line = NULL;
9a00f57a LP	102	char l, p, *e;
9a00f57a LP	103
710bf2ae LP	104	r = read_line(f, LONG_LINE_MAX, &line);
	105	if (r < 0)
	106	return r;
	107	if (r == 0)
	108	break;
	109
9a00f57a LP	110	l = strstrip(line);
	111
	112	if (!strneq(l, field, n))
	113	continue;
	114
	115	p = l + n;
	116	p += strspn(p, WHITESPACE);
	117
	118	if (*p != '=')
	119	continue;
	120	p++;
	121
	122	p += strspn(p, WHITESPACE);
	123
	124	if (*p != '"')
	125	continue;
	126	p++;
	127
	128	e = strrchr(p, '"');
	129	if (!e)
	130	continue;
	131	*e = 0;
	132
	133	/* Three syntaxes permitted: relative to $HOME, $HOME itself, and absolute path */
	134	if (startswith(p, "$HOME/")) {
	135	_cleanup_free_ char *h = NULL;
9a00f57a LP	136
	137	r = get_home_dir(&h);
	138	if (r < 0)
	139	return r;
	140
4ede9802	141	if (!path_extend(&h, p+5))
9a00f57a LP	142	return -ENOMEM;
9a00f57a LP	143
4ede9802 LP	144	*buffer = h;
4ede9802 LP	145	*ret = TAKE_PTR(h);
9a00f57a LP	146	return 0;
	147	} else if (streq(p, "$HOME")) {
	148
	149	r = get_home_dir(buffer);
	150	if (r < 0)
	151	return r;
	152
	153	ret = buffer;
	154	return 0;
	155	} else if (path_is_absolute(p)) {
	156	char *copy;
	157
	158	copy = strdup(p);
	159	if (!copy)
	160	return -ENOMEM;
	161
	162	*buffer = copy;
	163	*ret = copy;
	164	return 0;
	165	}
	166	}
	167
	168	fallback:
	169	/* The desktop directory defaults to $HOME/Desktop, the others to $HOME */
	170	if (streq(field, "XDG_DESKTOP_DIR")) {
	171	_cleanup_free_ char *h = NULL;
9a00f57a LP	172
	173	r = get_home_dir(&h);
	174	if (r < 0)
	175	return r;
	176
4ede9802	177	if (!path_extend(&h, "Desktop"))
9a00f57a LP	178	return -ENOMEM;
9a00f57a LP	179
4ede9802 LP	180	*buffer = h;
4ede9802 LP	181	*ret = TAKE_PTR(h);
9a00f57a	182	} else {
9a00f57a LP	183	r = get_home_dir(buffer);
	184	if (r < 0)
	185	return r;
	186
	187	ret = buffer;
	188	}
	189
	190	return 0;
	191	}
	192
	193	static int get_path(uint64_t type, char buffer, const char ret) {
	194	int r;
	195
	196	assert(buffer);
	197	assert(ret);
	198
	199	switch (type) {
	200
	201	case SD_PATH_TEMPORARY:
fccb4486	202	return tmp_dir(ret);
9a00f57a LP	203
9a00f57a LP	204	case SD_PATH_TEMPORARY_LARGE:
fccb4486	205	return var_tmp_dir(ret);
9a00f57a LP	206
	207	case SD_PATH_SYSTEM_BINARIES:
	208	*ret = "/usr/bin";
	209	return 0;
	210
	211	case SD_PATH_SYSTEM_INCLUDE:
	212	*ret = "/usr/include";
	213	return 0;
	214
	215	case SD_PATH_SYSTEM_LIBRARY_PRIVATE:
	216	*ret = "/usr/lib";
	217	return 0;
	218
	219	case SD_PATH_SYSTEM_LIBRARY_ARCH:
	220	*ret = LIBDIR;
	221	return 0;
	222
	223	case SD_PATH_SYSTEM_SHARED:
	224	*ret = "/usr/share";
	225	return 0;
	226
	227	case SD_PATH_SYSTEM_CONFIGURATION_FACTORY:
	228	*ret = "/usr/share/factory/etc";
	229	return 0;
	230
	231	case SD_PATH_SYSTEM_STATE_FACTORY:
	232	*ret = "/usr/share/factory/var";
	233	return 0;
	234
	235	case SD_PATH_SYSTEM_CONFIGURATION:
	236	*ret = "/etc";
	237	return 0;
	238
	239	case SD_PATH_SYSTEM_RUNTIME:
	240	*ret = "/run";
	241	return 0;
	242
	243	case SD_PATH_SYSTEM_RUNTIME_LOGS:
	244	*ret = "/run/log";
	245	return 0;
	246
	247	case SD_PATH_SYSTEM_STATE_PRIVATE:
	248	*ret = "/var/lib";
	249	return 0;
	250
	251	case SD_PATH_SYSTEM_STATE_LOGS:
	252	*ret = "/var/log";
	253	return 0;
	254
	255	case SD_PATH_SYSTEM_STATE_CACHE:
	256	*ret = "/var/cache";
	257	return 0;
	258
	259	case SD_PATH_SYSTEM_STATE_SPOOL:
	260	*ret = "/var/spool";
	261	return 0;
	262
	263	case SD_PATH_USER_BINARIES:
	264	return from_home_dir(NULL, ".local/bin", buffer, ret);
	265
	266	case SD_PATH_USER_LIBRARY_PRIVATE:
	267	return from_home_dir(NULL, ".local/lib", buffer, ret);
	268
	269	case SD_PATH_USER_LIBRARY_ARCH:
613e3a26	270	return from_home_dir(NULL, ".local/lib/" LIB_ARCH_TUPLE, buffer, ret);
9a00f57a LP	271
	272	case SD_PATH_USER_SHARED:
	273	return from_home_dir("XDG_DATA_HOME", ".local/share", buffer, ret);
	274
	275	case SD_PATH_USER_CONFIGURATION:
	276	return from_home_dir("XDG_CONFIG_HOME", ".config", buffer, ret);
	277
	278	case SD_PATH_USER_RUNTIME:
	279	return from_environment("XDG_RUNTIME_DIR", NULL, ret);
	280
	281	case SD_PATH_USER_STATE_CACHE:
	282	return from_home_dir("XDG_CACHE_HOME", ".cache", buffer, ret);
	283
	284	case SD_PATH_USER:
	285	r = get_home_dir(buffer);
	286	if (r < 0)
	287	return r;
	288
	289	ret = buffer;
	290	return 0;
	291
	292	case SD_PATH_USER_DOCUMENTS:
	293	return from_user_dir("XDG_DOCUMENTS_DIR", buffer, ret);
	294
	295	case SD_PATH_USER_MUSIC:
	296	return from_user_dir("XDG_MUSIC_DIR", buffer, ret);
	297
	298	case SD_PATH_USER_PICTURES:
	299	return from_user_dir("XDG_PICTURES_DIR", buffer, ret);
	300
	301	case SD_PATH_USER_VIDEOS:
	302	return from_user_dir("XDG_VIDEOS_DIR", buffer, ret);
	303
	304	case SD_PATH_USER_DOWNLOAD:
	305	return from_user_dir("XDG_DOWNLOAD_DIR", buffer, ret);
	306
	307	case SD_PATH_USER_PUBLIC:
	308	return from_user_dir("XDG_PUBLICSHARE_DIR", buffer, ret);
	309
	310	case SD_PATH_USER_TEMPLATES:
	311	return from_user_dir("XDG_TEMPLATES_DIR", buffer, ret);
	312
	313	case SD_PATH_USER_DESKTOP:
	314	return from_user_dir("XDG_DESKTOP_DIR", buffer, ret);
9c5bb203	315
ccdf03b9	316	case SD_PATH_SYSTEMD_UTIL:
b612c26c	317	*ret = ROOTPREFIX_NOSLASH "/lib/systemd";
9c5bb203 ZJS	318	return 0;
9c5bb203 ZJS	319
ccdf03b9	320	case SD_PATH_SYSTEMD_SYSTEM_UNIT:
835cf75a	321	*ret = SYSTEM_DATA_UNIT_DIR;
9c5bb203 ZJS	322	return 0;
9c5bb203 ZJS	323
ccdf03b9	324	case SD_PATH_SYSTEMD_SYSTEM_PRESET:
b612c26c	325	*ret = ROOTPREFIX_NOSLASH "/lib/systemd/system-preset";
9c5bb203 ZJS	326	return 0;
9c5bb203 ZJS	327
ccdf03b9	328	case SD_PATH_SYSTEMD_USER_UNIT:
96d33e4a	329	*ret = USER_DATA_UNIT_DIR;
9c5bb203 ZJS	330	return 0;
9c5bb203 ZJS	331
ccdf03b9	332	case SD_PATH_SYSTEMD_USER_PRESET:
b612c26c	333	*ret = ROOTPREFIX_NOSLASH "/lib/systemd/user-preset";
9c5bb203 ZJS	334	return 0;
9c5bb203 ZJS	335
ccdf03b9	336	case SD_PATH_SYSTEMD_SYSTEM_CONF:
96d33e4a	337	*ret = SYSTEM_CONFIG_UNIT_DIR;
9c5bb203 ZJS	338	return 0;
9c5bb203 ZJS	339
ccdf03b9	340	case SD_PATH_SYSTEMD_USER_CONF:
96d33e4a	341	*ret = USER_CONFIG_UNIT_DIR;
9c5bb203 ZJS	342	return 0;
9c5bb203 ZJS	343
ccdf03b9	344	case SD_PATH_SYSTEMD_SYSTEM_GENERATOR:
96d33e4a	345	*ret = SYSTEM_GENERATOR_DIR;
9c5bb203 ZJS	346	return 0;
9c5bb203 ZJS	347
ccdf03b9	348	case SD_PATH_SYSTEMD_USER_GENERATOR:
96d33e4a	349	*ret = USER_GENERATOR_DIR;
9c5bb203 ZJS	350	return 0;
9c5bb203 ZJS	351
ccdf03b9	352	case SD_PATH_SYSTEMD_SLEEP:
b612c26c	353	*ret = ROOTPREFIX_NOSLASH "/lib/systemd/system-sleep";
9c5bb203 ZJS	354	return 0;
9c5bb203 ZJS	355
ccdf03b9	356	case SD_PATH_SYSTEMD_SHUTDOWN:
b612c26c	357	*ret = ROOTPREFIX_NOSLASH "/lib/systemd/system-shutdown";
9c5bb203 ZJS	358	return 0;
9c5bb203 ZJS	359
ccdf03b9	360	case SD_PATH_TMPFILES:
9c5bb203 ZJS	361	*ret = "/usr/lib/tmpfiles.d";
	362	return 0;
	363
ccdf03b9	364	case SD_PATH_SYSUSERS:
b612c26c	365	*ret = ROOTPREFIX_NOSLASH "/lib/sysusers.d";
9c5bb203 ZJS	366	return 0;
9c5bb203 ZJS	367
ccdf03b9	368	case SD_PATH_SYSCTL:
b612c26c	369	*ret = ROOTPREFIX_NOSLASH "/lib/sysctl.d";
9c5bb203 ZJS	370	return 0;
9c5bb203 ZJS	371
ccdf03b9	372	case SD_PATH_BINFMT:
b612c26c	373	*ret = ROOTPREFIX_NOSLASH "/lib/binfmt.d";
9c5bb203 ZJS	374	return 0;
9c5bb203 ZJS	375
ccdf03b9	376	case SD_PATH_MODULES_LOAD:
b612c26c	377	*ret = ROOTPREFIX_NOSLASH "/lib/modules-load.d";
9c5bb203 ZJS	378	return 0;
9c5bb203 ZJS	379
ccdf03b9	380	case SD_PATH_CATALOG:
9c5bb203 ZJS	381	*ret = "/usr/lib/systemd/catalog";
9c5bb203 ZJS	382	return 0;
9a00f57a LP	383	}
9a00f57a LP	384
15411c0c	385	return -EOPNOTSUPP;
9a00f57a LP	386	}
9a00f57a LP	387
ce7eb6aa	388	static int get_path_alloc(uint64_t type, const char suffix, char *path) {
a13de89d	389	_cleanup_free_ char *buffer = NULL;
ce7eb6aa	390	char *buffer2 = NULL;
9a00f57a LP	391	const char *ret;
	392	int r;
	393
ce7eb6aa	394	assert(path);
9a00f57a	395
ce7eb6aa ZJS	396	r = get_path(type, &buffer, &ret);
	397	if (r < 0)
	398	return r;
9a00f57a	399
ce7eb6aa ZJS	400	if (suffix) {
	401	suffix += strspn(suffix, "/");
	402	buffer2 = path_join(ret, suffix);
	403	if (!buffer2)
	404	return -ENOMEM;
	405	} else if (!buffer) {
	406	buffer = strdup(ret);
9a00f57a LP	407	if (!buffer)
9a00f57a LP	408	return -ENOMEM;
9a00f57a LP	409	}
9a00f57a LP	410
ce7eb6aa ZJS	411	*path = buffer2 ?: TAKE_PTR(buffer);
	412	return 0;
	413	}
	414
	415	_public_ int sd_path_lookup(uint64_t type, const char suffix, char *path) {
	416	int r;
	417
	418	assert_return(path, -EINVAL);
	419
	420	r = get_path_alloc(type, suffix, path);
	421	if (r != -EOPNOTSUPP)
9a00f57a LP	422	return r;
9a00f57a LP	423
ce7eb6aa ZJS	424	/* Fall back to sd_path_lookup_strv */
	425	_cleanup_strv_free_ char **l = NULL;
	426	char *buffer;
9a00f57a	427
ce7eb6aa ZJS	428	r = sd_path_lookup_strv(type, suffix, &l);
	429	if (r < 0)
	430	return r;
9a00f57a	431
ce7eb6aa ZJS	432	buffer = strv_join(l, ":");
ce7eb6aa ZJS	433	if (!buffer)
9a00f57a LP	434	return -ENOMEM;
9a00f57a LP	435
ce7eb6aa	436	*path = buffer;
9a00f57a LP	437	return 0;
	438	}
	439
	440	static int search_from_environment(
	441	char ***list,
	442	const char *env_home,
	443	const char *home_suffix,
	444	const char *env_search,
	445	bool env_search_sufficient,
	446	const char *first, ...) {
	447
623550af	448	_cleanup_strv_free_ char **l = NULL;
9a00f57a LP	449	const char *e;
9a00f57a LP	450	char *h = NULL;
9a00f57a LP	451	int r;
	452
	453	assert(list);
	454
	455	if (env_search) {
	456	e = secure_getenv(env_search);
	457	if (e) {
	458	l = strv_split(e, ":");
	459	if (!l)
	460	return -ENOMEM;
	461
	462	if (env_search_sufficient) {
623550af	463	*list = TAKE_PTR(l);
9a00f57a LP	464	return 0;
	465	}
	466	}
	467	}
	468
	469	if (!l && first) {
	470	va_list ap;
	471
	472	va_start(ap, first);
	473	l = strv_new_ap(first, ap);
	474	va_end(ap);
	475
	476	if (!l)
	477	return -ENOMEM;
	478	}
	479
	480	if (env_home) {
	481	e = secure_getenv(env_home);
	482	if (e && path_is_absolute(e)) {
	483	h = strdup(e);
623550af	484	if (!h)
9a00f57a	485	return -ENOMEM;
9a00f57a LP	486	}
	487	}
	488
	489	if (!h && home_suffix) {
	490	e = secure_getenv("HOME");
	491	if (e && path_is_absolute(e)) {
657ee2d8	492	h = path_join(e, home_suffix);
623550af	493	if (!h)
9a00f57a	494	return -ENOMEM;
9a00f57a LP	495	}
	496	}
	497
	498	if (h) {
	499	r = strv_consume_prepend(&l, h);
623550af	500	if (r < 0)
9a00f57a	501	return -ENOMEM;
9a00f57a LP	502	}
9a00f57a LP	503
623550af	504	*list = TAKE_PTR(l);
9a00f57a LP	505	return 0;
	506	}
	507
671f0f8d ZJS	508	#if HAVE_SPLIT_BIN
	509	# define ARRAY_SBIN_BIN(x) x "sbin", x "bin"
	510	#else
	511	# define ARRAY_SBIN_BIN(x) x "bin"
	512	#endif
	513
9a00f57a	514	static int get_search(uint64_t type, char ***list) {
9c5bb203	515	int r;
9a00f57a LP	516
	517	assert(list);
	518
79893116	519	switch (type) {
9a00f57a LP	520
	521	case SD_PATH_SEARCH_BINARIES:
	522	return search_from_environment(list,
	523	NULL,
	524	".local/bin",
	525	"PATH",
	526	true,
671f0f8d ZJS	527	ARRAY_SBIN_BIN("/usr/local/"),
671f0f8d ZJS	528	ARRAY_SBIN_BIN("/usr/"),
349cc4a5	529	#if HAVE_SPLIT_USR
671f0f8d	530	ARRAY_SBIN_BIN("/"),
9a00f57a LP	531	#endif
	532	NULL);
	533
	534	case SD_PATH_SEARCH_LIBRARY_PRIVATE:
	535	return search_from_environment(list,
	536	NULL,
	537	".local/lib",
	538	NULL,
	539	false,
	540	"/usr/local/lib",
	541	"/usr/lib",
349cc4a5	542	#if HAVE_SPLIT_USR
9a00f57a LP	543	"/lib",
	544	#endif
	545	NULL);
	546
	547	case SD_PATH_SEARCH_LIBRARY_ARCH:
	548	return search_from_environment(list,
	549	NULL,
613e3a26	550	".local/lib/" LIB_ARCH_TUPLE,
9a00f57a LP	551	"LD_LIBRARY_PATH",
	552	true,
	553	LIBDIR,
349cc4a5	554	#if HAVE_SPLIT_USR
9a00f57a LP	555	ROOTLIBDIR,
	556	#endif
	557	NULL);
	558
	559	case SD_PATH_SEARCH_SHARED:
	560	return search_from_environment(list,
	561	"XDG_DATA_HOME",
	562	".local/share",
	563	"XDG_DATA_DIRS",
	564	false,
	565	"/usr/local/share",
	566	"/usr/share",
	567	NULL);
	568
	569	case SD_PATH_SEARCH_CONFIGURATION_FACTORY:
	570	return search_from_environment(list,
	571	NULL,
	572	NULL,
	573	NULL,
	574	false,
	575	"/usr/local/share/factory/etc",
	576	"/usr/share/factory/etc",
	577	NULL);
	578
	579	case SD_PATH_SEARCH_STATE_FACTORY:
	580	return search_from_environment(list,
	581	NULL,
	582	NULL,
	583	NULL,
	584	false,
	585	"/usr/local/share/factory/var",
	586	"/usr/share/factory/var",
	587	NULL);
	588
	589	case SD_PATH_SEARCH_CONFIGURATION:
	590	return search_from_environment(list,
	591	"XDG_CONFIG_HOME",
	592	".config",
	593	"XDG_CONFIG_DIRS",
	594	false,
	595	"/etc",
	596	NULL);
e12d446b	597
a7addf32 ZJS	598	case SD_PATH_SEARCH_BINARIES_DEFAULT:
a7addf32 ZJS	599	return strv_from_nulstr(list, DEFAULT_PATH_NULSTR);
e12d446b	600
ccdf03b9 LP	601	case SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT:
ccdf03b9 LP	602	case SD_PATH_SYSTEMD_SEARCH_USER_UNIT: {
9c5bb203	603	_cleanup_(lookup_paths_free) LookupPaths lp = {};
b380b643 ZJS	604	const LookupScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT ?
b380b643 ZJS	605	LOOKUP_SCOPE_SYSTEM : LOOKUP_SCOPE_USER;
9c5bb203 ZJS	606
	607	r = lookup_paths_init(&lp, scope, 0, NULL);
	608	if (r < 0)
	609	return r;
e12d446b	610
9c5bb203 ZJS	611	*list = TAKE_PTR(lp.search_path);
9c5bb203 ZJS	612	return 0;
a7addf32	613	}
9a00f57a	614
ccdf03b9 LP	615	case SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR:
ccdf03b9 LP	616	case SD_PATH_SYSTEMD_SEARCH_USER_GENERATOR: {
9c5bb203	617	char **t;
b380b643 ZJS	618	const LookupScope scope = type == SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR ?
b380b643 ZJS	619	LOOKUP_SCOPE_SYSTEM : LOOKUP_SCOPE_USER;
9c5bb203 ZJS	620
	621	t = generator_binary_paths(scope);
	622	if (!t)
	623	return -ENOMEM;
	624
	625	*list = t;
	626	return 0;
f1bb691a ZJS	627	}
f1bb691a ZJS	628
ccdf03b9	629	case SD_PATH_SYSTEMD_SEARCH_NETWORK:
f1bb691a ZJS	630	return strv_from_nulstr(list, NETWORK_DIRS_NULSTR);
	631
	632	}
9c5bb203	633
15411c0c	634	return -EOPNOTSUPP;
9a00f57a LP	635	}
9a00f57a LP	636
51327bcc	637	_public_ int sd_path_lookup_strv(uint64_t type, const char suffix, char **paths) {
a605e46f	638	_cleanup_strv_free_ char l = NULL, n = NULL;
9a00f57a LP	639	int r;
	640
	641	assert_return(paths, -EINVAL);
	642
ce7eb6aa ZJS	643	r = get_search(type, &l);
	644	if (r == -EOPNOTSUPP) {
	645	_cleanup_free_ char *t = NULL;
9a00f57a	646
ce7eb6aa	647	r = get_path_alloc(type, suffix, &t);
9a00f57a LP	648	if (r < 0)
	649	return r;
	650
	651	l = new(char*, 2);
ce7eb6aa	652	if (!l)
9a00f57a	653	return -ENOMEM;
ce7eb6aa	654	l[0] = TAKE_PTR(t);
9a00f57a LP	655	l[1] = NULL;
9a00f57a LP	656
a605e46f	657	*paths = TAKE_PTR(l);
9a00f57a	658	return 0;
9a00f57a	659
ce7eb6aa	660	} else if (r < 0)
9a00f57a LP	661	return r;
	662
	663	if (!suffix) {
a605e46f	664	*paths = TAKE_PTR(l);
9a00f57a LP	665	return 0;
	666	}
	667
	668	n = new(char*, strv_length(l)+1);
a605e46f	669	if (!n)
9a00f57a	670	return -ENOMEM;
9a00f57a	671
de010b0b	672	char **j = n;
9a00f57a	673	STRV_FOREACH(i, l) {
657ee2d8	674	j = path_join(i, suffix);
a605e46f	675	if (!*j)
9a00f57a	676	return -ENOMEM;
9a00f57a LP	677
	678	j++;
	679	}
9a00f57a	680	*j = NULL;
ce7eb6aa	681
a605e46f	682	*paths = TAKE_PTR(n);
9a00f57a LP	683	return 0;
9a00f57a LP	684	}