[thirdparty/systemd.git] / src / systemctl / systemctl-edit.c

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

#include <unistd.h>

#include "alloc-util.h"
#include "bus-util.h"
#include "edit-util.h"
#include "hashmap.h"
#include "label-util.h"
#include "pager.h"
#include "path-lookup.h"
#include "path-util.h"
#include "pretty-print.h"
#include "string-util.h"
#include "strv.h"
#include "systemctl.h"
#include "systemctl-daemon-reload.h"
#include "systemctl-edit.h"
#include "systemctl-util.h"
#include "terminal-util.h"
#include "unit-name.h"

int verb_cat(int argc, char *argv[], void *userdata) {
        _cleanup_hashmap_free_ Hashmap *cached_id_map = NULL, *cached_name_map = NULL;
        _cleanup_(lookup_paths_done) LookupPaths lp = {};
        _cleanup_strv_free_ char **names = NULL;
        sd_bus *bus;
        bool first = true;
        int r, rc = 0;

        /* Include all units by default — i.e. continue as if the --all option was used */
        if (strv_isempty(arg_states))
                arg_all = true;

        if (arg_transport != BUS_TRANSPORT_LOCAL)
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot remotely cat units.");

        r = lookup_paths_init_or_warn(&lp, arg_runtime_scope, 0, arg_root);
        if (r < 0)
                return r;

        r = acquire_bus(BUS_MANAGER, &bus);
        if (r < 0)
                return r;

        r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
        if (r < 0)
                return log_error_errno(r, "Failed to expand names: %m");

        r = maybe_extend_with_unit_dependencies(bus, &names);
        if (r < 0)
                return r;

        pager_open(arg_pager_flags);

        STRV_FOREACH(name, names) {
                _cleanup_free_ char *fragment_path = NULL;
                _cleanup_strv_free_ char **dropin_paths = NULL;

                r = unit_find_paths(bus, *name, &lp, false, &cached_id_map, &cached_name_map, &fragment_path, &dropin_paths);
                if (r == -ERFKILL) {
                        printf("%s# Unit %s is masked%s.\n",
                               ansi_highlight_magenta(),
                               *name,
                               ansi_normal());
                        continue;
                }
                if (r == -EKEYREJECTED) {
                        printf("%s# Unit %s could not be loaded.%s\n",
                               ansi_highlight_magenta(),
                               *name,
                               ansi_normal());
                        continue;
                }
                if (r < 0)
                        return r;
                if (r == 0) {
                        /* Skip units which have no on-disk counterpart, but propagate the error to the
                         * user (if --force is set, eat the error, just like unit_find_paths()) */
                        if (!arg_force)
                                rc = -ENOENT;
                        continue;
                }

                if (first)
                        first = false;
                else
                        puts("");

                if (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */
                        fprintf(stderr,
                                "%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n"
                                "%s# This output shows the current version of the unit's original fragment and drop-in files.\n"
                                "%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n"
                                "%s# Run 'systemctl%s daemon-reload' to reload units.%s\n",
                                ansi_highlight_red(),
                                *name,
                                ansi_highlight_red(),
                                ansi_highlight_red(),
                                ansi_highlight_red(),
                                arg_runtime_scope == RUNTIME_SCOPE_SYSTEM ? "" : " --user",
                                ansi_normal());

                r = cat_files(fragment_path, dropin_paths, /* flags= */ CAT_FORMAT_HAS_SECTIONS);
                if (r < 0)
                        return r;
        }

        return rc;
}

static int get_file_to_edit(
                const LookupPaths *lp,
                const char *name,
                char **ret_path) {

        _cleanup_free_ char *path = NULL;

        assert(lp);
        assert(name);
        assert(ret_path);

        path = path_join(lp->persistent_config, name);
        if (!path)
                return log_oom();

        if (arg_runtime) {
                _cleanup_free_ char *run = NULL;

                run = path_join(lp->runtime_config, name);
                if (!run)
                        return log_oom();

                if (access(path, F_OK) >= 0)
                        return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
                                               "Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.",
                                               run, path);

                *ret_path = TAKE_PTR(run);
        } else
                *ret_path = TAKE_PTR(path);

        return 0;
}

static int unit_file_create_new(
                EditFileContext *context,
                const LookupPaths *lp,
                const char *unit_name,
                const char *suffix,
                char * const *original_unit_paths) {

        _cleanup_free_ char *unit = NULL, *new_path = NULL;
        int r;

        assert(context);
        assert(lp);
        assert(unit_name);

        unit = strjoin(unit_name, suffix);
        if (!unit)
                return log_oom();

        r = get_file_to_edit(lp, unit, &new_path);
        if (r < 0)
                return r;

        return edit_files_add(context, new_path, NULL, original_unit_paths);
}

static int unit_file_create_copy(
                EditFileContext *context,
                const LookupPaths *lp,
                const char *unit_name,
                const char *fragment_path) {

        _cleanup_free_ char *new_path = NULL;
        int r;

        assert(context);
        assert(lp);
        assert(fragment_path);
        assert(unit_name);

        r = get_file_to_edit(lp, unit_name, &new_path);
        if (r < 0)
                return r;

        if (!path_equal(fragment_path, new_path) && access(new_path, F_OK) >= 0) {
                char response;

                r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", new_path, fragment_path);
                if (r < 0)
                        return r;

                if (response != 'y')
                        return log_warning_errno(SYNTHETIC_ERRNO(EKEYREJECTED), "%s skipped.", unit_name);
        }

        return edit_files_add(context, new_path, fragment_path, NULL);
}

static int find_paths_to_edit(
                sd_bus *bus,
                EditFileContext *context,
                char **names) {

        _cleanup_hashmap_free_ Hashmap *cached_id_map = NULL, *cached_name_map = NULL;
        _cleanup_(lookup_paths_done) LookupPaths lp = {};
        _cleanup_free_ char *drop_in_alloc = NULL, *suffix = NULL;
        const char *drop_in;
        int r;

        assert(bus);
        assert(context);
        assert(names);

        if (isempty(arg_drop_in))
                drop_in = "override.conf";
        else if (!endswith(arg_drop_in, ".conf")) {
                drop_in_alloc = strjoin(arg_drop_in, ".conf");
                if (!drop_in_alloc)
                        return log_oom();

                drop_in = drop_in_alloc;
        } else
                drop_in = arg_drop_in;

        if (!filename_is_valid(drop_in))
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid drop-in file name '%s'.", drop_in);

        suffix = strjoin(".d/", drop_in);
        if (!suffix)
                return log_oom();

        r = lookup_paths_init(&lp, arg_runtime_scope, 0, arg_root);
        if (r < 0)
                return r;

        STRV_FOREACH(name, names) {
                _cleanup_free_ char *path = NULL;
                _cleanup_strv_free_ char **unit_paths = NULL;

                r = unit_find_paths(bus, *name, &lp, /* force_client_side= */ false, &cached_id_map, &cached_name_map, &path, &unit_paths);
                if (r == -EKEYREJECTED) {
                        /* If loading of the unit failed server side complete, then the server won't tell us
                         * the unit file path. In that case, find the file client side. */

                        log_debug_errno(r, "Unit '%s' was not loaded correctly, retrying client-side.", *name);
                        r = unit_find_paths(bus, *name, &lp, /* force_client_side= */ true, &cached_id_map, &cached_name_map, &path, &unit_paths);
                }
                if (r == -ERFKILL)
                        return log_error_errno(r, "Unit '%s' masked, cannot edit.", *name);
                if (r < 0)
                        return r; /* Already logged by unit_find_paths() */

                if (!path) {
                        if (!arg_force)
                                return log_info_errno(SYNTHETIC_ERRNO(ENOENT),
                                                      "Run 'systemctl edit%s --force --full %s' to create a new unit.",
                                                      arg_runtime_scope == RUNTIME_SCOPE_GLOBAL ? " --global" :
                                                      arg_runtime_scope == RUNTIME_SCOPE_USER ? " --user" : "",
                                                      *name);

                        /* Create a new unit from scratch */
                        r = unit_file_create_new(
                                        context,
                                        &lp,
                                        *name,
                                        arg_full ? NULL : suffix,
                                        NULL);
                } else {
                        _cleanup_free_ char *unit_name = NULL;

                        r = path_extract_filename(path, &unit_name);
                        if (r < 0)
                                return log_error_errno(r, "Failed to extract unit name from path '%s': %m", path);

                        /* We follow unit aliases, but we need to propagate the instance */
                        if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) &&
                            unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
                                _cleanup_free_ char *instance = NULL, *tmp_name = NULL;

                                r = unit_name_to_instance(*name, &instance);
                                if (r < 0)
                                        return r;

                                r = unit_name_replace_instance(unit_name, instance, &tmp_name);
                                if (r < 0)
                                        return r;

                                free_and_replace(unit_name, tmp_name);
                        }

                        if (arg_full)
                                r = unit_file_create_copy(
                                                context,
                                                &lp,
                                                unit_name,
                                                path);
                        else {
                                r = strv_prepend(&unit_paths, path);
                                if (r < 0)
                                        return log_oom();

                                r = unit_file_create_new(
                                                context,
                                                &lp,
                                                unit_name,
                                                suffix,
                                                unit_paths);
                        }
                }
                if (r < 0)
                        return r;
        }

        return 0;
}

int verb_edit(int argc, char *argv[], void *userdata) {
        _cleanup_(edit_file_context_done) EditFileContext context = {
                .marker_start = DROPIN_MARKER_START,
                .marker_end = DROPIN_MARKER_END,
                .remove_parent = !arg_full,
                .overwrite_with_origin = true,
                .read_from_stdin = arg_stdin,
        };
        _cleanup_strv_free_ char **names = NULL;
        sd_bus *bus;
        int r;

        if (!on_tty() && !arg_stdin)
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units interactively if not on a tty.");

        if (arg_transport != BUS_TRANSPORT_LOCAL)
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units remotely.");

        r = mac_init();
        if (r < 0)
                return r;

        r = acquire_bus(BUS_MANAGER, &bus);
        if (r < 0)
                return r;

        r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
        if (r < 0)
                return log_error_errno(r, "Failed to expand names: %m");
        if (strv_isempty(names))
                return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "No units matched the specified patterns.");

        if (arg_stdin && arg_full && strv_length(names) != 1)
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
                                       "With 'edit --stdin --full', exactly one unit for editing must be specified.");

        STRV_FOREACH(tmp, names) {
                r = unit_is_masked(bus, *tmp);
                if (r < 0 && r != -ENOENT)
                        return log_error_errno(r, "Failed to check if unit %s is masked: %m", *tmp);
                if (r > 0)
                        return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit %s: unit is masked.", *tmp);
        }

        r = find_paths_to_edit(bus, &context, names);
        if (r < 0)
                return r;

        r = do_edit_files_and_install(&context);
        if (r < 0)
                return r;

        if (!arg_no_reload && !install_client_side()) {
                r = daemon_reload(ACTION_RELOAD, /* graceful= */ false);
                if (r < 0)
                        return r;
        }

        return 0;
}
Commit	Line	Data
	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
	2
	3	#include <unistd.h>
	4
	5	#include "alloc-util.h"
	6	#include "bus-util.h"
	7	#include "edit-util.h"
	8	#include "hashmap.h"
	9	#include "label-util.h"
	10	#include "pager.h"
	11	#include "path-lookup.h"
	12	#include "path-util.h"
	13	#include "pretty-print.h"
	14	#include "string-util.h"
	15	#include "strv.h"
	16	#include "systemctl.h"
	17	#include "systemctl-daemon-reload.h"
	18	#include "systemctl-edit.h"
	19	#include "systemctl-util.h"
	20	#include "terminal-util.h"
	21	#include "unit-name.h"
	22
	23	int verb_cat(int argc, char argv[], void userdata) {
	24	_cleanup_hashmap_free_ Hashmap cached_id_map = NULL, cached_name_map = NULL;
	25	_cleanup_(lookup_paths_done) LookupPaths lp = {};
	26	_cleanup_strv_free_ char **names = NULL;
	27	sd_bus *bus;
	28	bool first = true;
	29	int r, rc = 0;
	30
	31	/* Include all units by default — i.e. continue as if the --all option was used */
	32	if (strv_isempty(arg_states))
	33	arg_all = true;
	34
	35	if (arg_transport != BUS_TRANSPORT_LOCAL)
	36	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot remotely cat units.");
	37
	38	r = lookup_paths_init_or_warn(&lp, arg_runtime_scope, 0, arg_root);
	39	if (r < 0)
	40	return r;
	41
	42	r = acquire_bus(BUS_MANAGER, &bus);
	43	if (r < 0)
	44	return r;
	45
	46	r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
	47	if (r < 0)
	48	return log_error_errno(r, "Failed to expand names: %m");
	49
	50	r = maybe_extend_with_unit_dependencies(bus, &names);
	51	if (r < 0)
	52	return r;
	53
	54	pager_open(arg_pager_flags);
	55
	56	STRV_FOREACH(name, names) {
	57	_cleanup_free_ char *fragment_path = NULL;
	58	_cleanup_strv_free_ char **dropin_paths = NULL;
	59
	60	r = unit_find_paths(bus, *name, &lp, false, &cached_id_map, &cached_name_map, &fragment_path, &dropin_paths);
	61	if (r == -ERFKILL) {
	62	printf("%s# Unit %s is masked%s.\n",
	63	ansi_highlight_magenta(),
	64	*name,
	65	ansi_normal());
	66	continue;
	67	}
	68	if (r == -EKEYREJECTED) {
	69	printf("%s# Unit %s could not be loaded.%s\n",
	70	ansi_highlight_magenta(),
	71	*name,
	72	ansi_normal());
	73	continue;
	74	}
	75	if (r < 0)
	76	return r;
	77	if (r == 0) {
	78	/* Skip units which have no on-disk counterpart, but propagate the error to the
	79	* user (if --force is set, eat the error, just like unit_find_paths()) */
	80	if (!arg_force)
	81	rc = -ENOENT;
	82	continue;
	83	}
	84
	85	if (first)
	86	first = false;
	87	else
	88	puts("");
	89
	90	if (need_daemon_reload(bus, name) > 0) / ignore errors (<0), this is informational output */
	91	fprintf(stderr,
	92	"%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n"
	93	"%s# This output shows the current version of the unit's original fragment and drop-in files.\n"
	94	"%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n"
	95	"%s# Run 'systemctl%s daemon-reload' to reload units.%s\n",
	96	ansi_highlight_red(),
	97	*name,
	98	ansi_highlight_red(),
	99	ansi_highlight_red(),
	100	ansi_highlight_red(),
	101	arg_runtime_scope == RUNTIME_SCOPE_SYSTEM ? "" : " --user",
	102	ansi_normal());
	103
	104	r = cat_files(fragment_path, dropin_paths, /* flags= */ CAT_FORMAT_HAS_SECTIONS);
	105	if (r < 0)
	106	return r;
	107	}
	108
	109	return rc;
	110	}
	111
	112	static int get_file_to_edit(
	113	const LookupPaths *lp,
	114	const char *name,
	115	char **ret_path) {
	116
	117	_cleanup_free_ char *path = NULL;
	118
	119	assert(lp);
	120	assert(name);
	121	assert(ret_path);
	122
	123	path = path_join(lp->persistent_config, name);
	124	if (!path)
	125	return log_oom();
	126
	127	if (arg_runtime) {
	128	_cleanup_free_ char *run = NULL;
	129
	130	run = path_join(lp->runtime_config, name);
	131	if (!run)
	132	return log_oom();
	133
	134	if (access(path, F_OK) >= 0)
	135	return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
	136	"Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.",
	137	run, path);
	138
	139	*ret_path = TAKE_PTR(run);
	140	} else
	141	*ret_path = TAKE_PTR(path);
	142
	143	return 0;
	144	}
	145
	146	static int unit_file_create_new(
	147	EditFileContext *context,
	148	const LookupPaths *lp,
	149	const char *unit_name,
	150	const char *suffix,
	151	char * const *original_unit_paths) {
	152
	153	_cleanup_free_ char unit = NULL, new_path = NULL;
	154	int r;
	155
	156	assert(context);
	157	assert(lp);
	158	assert(unit_name);
	159
	160	unit = strjoin(unit_name, suffix);
	161	if (!unit)
	162	return log_oom();
	163
	164	r = get_file_to_edit(lp, unit, &new_path);
	165	if (r < 0)
	166	return r;
	167
	168	return edit_files_add(context, new_path, NULL, original_unit_paths);
	169	}
	170
	171	static int unit_file_create_copy(
	172	EditFileContext *context,
	173	const LookupPaths *lp,
	174	const char *unit_name,
	175	const char *fragment_path) {
	176
	177	_cleanup_free_ char *new_path = NULL;
	178	int r;
	179
	180	assert(context);
	181	assert(lp);
	182	assert(fragment_path);
	183	assert(unit_name);
	184
	185	r = get_file_to_edit(lp, unit_name, &new_path);
	186	if (r < 0)
	187	return r;
	188
	189	if (!path_equal(fragment_path, new_path) && access(new_path, F_OK) >= 0) {
	190	char response;
	191
	192	r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", new_path, fragment_path);
	193	if (r < 0)
	194	return r;
	195
	196	if (response != 'y')
	197	return log_warning_errno(SYNTHETIC_ERRNO(EKEYREJECTED), "%s skipped.", unit_name);
	198	}
	199
	200	return edit_files_add(context, new_path, fragment_path, NULL);
	201	}
	202
	203	static int find_paths_to_edit(
	204	sd_bus *bus,
	205	EditFileContext *context,
	206	char **names) {
	207
	208	_cleanup_hashmap_free_ Hashmap cached_id_map = NULL, cached_name_map = NULL;
	209	_cleanup_(lookup_paths_done) LookupPaths lp = {};
	210	_cleanup_free_ char drop_in_alloc = NULL, suffix = NULL;
	211	const char *drop_in;
	212	int r;
	213
	214	assert(bus);
	215	assert(context);
	216	assert(names);
	217
	218	if (isempty(arg_drop_in))
	219	drop_in = "override.conf";
	220	else if (!endswith(arg_drop_in, ".conf")) {
	221	drop_in_alloc = strjoin(arg_drop_in, ".conf");
	222	if (!drop_in_alloc)
	223	return log_oom();
	224
	225	drop_in = drop_in_alloc;
	226	} else
	227	drop_in = arg_drop_in;
	228
	229	if (!filename_is_valid(drop_in))
	230	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid drop-in file name '%s'.", drop_in);
	231
	232	suffix = strjoin(".d/", drop_in);
	233	if (!suffix)
	234	return log_oom();
	235
	236	r = lookup_paths_init(&lp, arg_runtime_scope, 0, arg_root);
	237	if (r < 0)
	238	return r;
	239
	240	STRV_FOREACH(name, names) {
	241	_cleanup_free_ char *path = NULL;
	242	_cleanup_strv_free_ char **unit_paths = NULL;
	243
	244	r = unit_find_paths(bus, name, &lp, / force_client_side= */ false, &cached_id_map, &cached_name_map, &path, &unit_paths);
	245	if (r == -EKEYREJECTED) {
	246	/* If loading of the unit failed server side complete, then the server won't tell us
	247	* the unit file path. In that case, find the file client side. */
	248
	249	log_debug_errno(r, "Unit '%s' was not loaded correctly, retrying client-side.", *name);
	250	r = unit_find_paths(bus, name, &lp, / force_client_side= */ true, &cached_id_map, &cached_name_map, &path, &unit_paths);
	251	}
	252	if (r == -ERFKILL)
	253	return log_error_errno(r, "Unit '%s' masked, cannot edit.", *name);
	254	if (r < 0)
	255	return r; /* Already logged by unit_find_paths() */
	256
	257	if (!path) {
	258	if (!arg_force)
	259	return log_info_errno(SYNTHETIC_ERRNO(ENOENT),
	260	"Run 'systemctl edit%s --force --full %s' to create a new unit.",
	261	arg_runtime_scope == RUNTIME_SCOPE_GLOBAL ? " --global" :
	262	arg_runtime_scope == RUNTIME_SCOPE_USER ? " --user" : "",
	263	*name);
	264
	265	/* Create a new unit from scratch */
	266	r = unit_file_create_new(
	267	context,
	268	&lp,
	269	*name,
	270	arg_full ? NULL : suffix,
	271	NULL);
	272	} else {
	273	_cleanup_free_ char *unit_name = NULL;
	274
	275	r = path_extract_filename(path, &unit_name);
	276	if (r < 0)
	277	return log_error_errno(r, "Failed to extract unit name from path '%s': %m", path);
	278
	279	/* We follow unit aliases, but we need to propagate the instance */
	280	if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) &&
	281	unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
	282	_cleanup_free_ char instance = NULL, tmp_name = NULL;
	283
	284	r = unit_name_to_instance(*name, &instance);
	285	if (r < 0)
	286	return r;
	287
	288	r = unit_name_replace_instance(unit_name, instance, &tmp_name);
	289	if (r < 0)
	290	return r;
	291
	292	free_and_replace(unit_name, tmp_name);
	293	}
	294
	295	if (arg_full)
	296	r = unit_file_create_copy(
	297	context,
	298	&lp,
	299	unit_name,
	300	path);
	301	else {
	302	r = strv_prepend(&unit_paths, path);
	303	if (r < 0)
	304	return log_oom();
	305
	306	r = unit_file_create_new(
	307	context,
	308	&lp,
	309	unit_name,
	310	suffix,
	311	unit_paths);
	312	}
	313	}
	314	if (r < 0)
	315	return r;
	316	}
	317
	318	return 0;
	319	}
	320
	321	int verb_edit(int argc, char argv[], void userdata) {
	322	_cleanup_(edit_file_context_done) EditFileContext context = {
	323	.marker_start = DROPIN_MARKER_START,
	324	.marker_end = DROPIN_MARKER_END,
	325	.remove_parent = !arg_full,
	326	.overwrite_with_origin = true,
	327	.read_from_stdin = arg_stdin,
	328	};
	329	_cleanup_strv_free_ char **names = NULL;
	330	sd_bus *bus;
	331	int r;
	332
	333	if (!on_tty() && !arg_stdin)
	334	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units interactively if not on a tty.");
	335
	336	if (arg_transport != BUS_TRANSPORT_LOCAL)
	337	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units remotely.");
	338
	339	r = mac_init();
	340	if (r < 0)
	341	return r;
	342
	343	r = acquire_bus(BUS_MANAGER, &bus);
	344	if (r < 0)
	345	return r;
	346
	347	r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
	348	if (r < 0)
	349	return log_error_errno(r, "Failed to expand names: %m");
	350	if (strv_isempty(names))
	351	return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "No units matched the specified patterns.");
	352
	353	if (arg_stdin && arg_full && strv_length(names) != 1)
	354	return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
	355	"With 'edit --stdin --full', exactly one unit for editing must be specified.");
	356
	357	STRV_FOREACH(tmp, names) {
	358	r = unit_is_masked(bus, *tmp);
	359	if (r < 0 && r != -ENOENT)
	360	return log_error_errno(r, "Failed to check if unit %s is masked: %m", *tmp);
	361	if (r > 0)
	362	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit %s: unit is masked.", *tmp);
	363	}
	364
	365	r = find_paths_to_edit(bus, &context, names);
	366	if (r < 0)
	367	return r;
	368
	369	r = do_edit_files_and_install(&context);
	370	if (r < 0)
	371	return r;
	372
	373	if (!arg_no_reload && !install_client_side()) {
	374	r = daemon_reload(ACTION_RELOAD, /* graceful= */ false);
	375	if (r < 0)
	376	return r;
	377	}
	378
	379	return 0;
	380	}