15263807472

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

#include <stdio.h>
#include <stdlib.h>

#include "alloc-util.h"
#include "chase.h"
#include "conf-files.h"
#include "dirent-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "glyph-util.h"
#include "hashmap.h"
#include "log.h"
#include "nulstr-util.h"
#include "path-util.h"
#include "set.h"
#include "stat-util.h"
#include "string-util.h"
#include "strv.h"

static int files_add(
                DIR *dir,
                const char *dirpath,
                Hashmap **files,
                Set **masked,
                const char *suffix,
                unsigned flags) {

        int r;

        assert(dir);
        assert(dirpath);
        assert(files);
        assert(masked);

        FOREACH_DIRENT(de, dir, return -errno) {
                _cleanup_free_ char *n = NULL, *p = NULL;
                struct stat st;

                /* Does this match the suffix? */
                if (suffix && !endswith(de->d_name, suffix))
                        continue;

                /* Has this file already been found in an earlier directory? */
                if (hashmap_contains(*files, de->d_name)) {
                        log_debug("Skipping overridden file '%s/%s'.", dirpath, de->d_name);
                        continue;
                }

                /* Has this been masked in an earlier directory? */
                if ((flags & CONF_FILES_FILTER_MASKED) && set_contains(*masked, de->d_name)) {
                        log_debug("File '%s/%s' is masked by previous entry.", dirpath, de->d_name);
                        continue;
                }

                /* Read file metadata if we shall validate the check for file masks, for node types or whether the node is marked executable. */
                if (flags & (CONF_FILES_FILTER_MASKED|CONF_FILES_REGULAR|CONF_FILES_DIRECTORY|CONF_FILES_EXECUTABLE))
                        if (fstatat(dirfd(dir), de->d_name, &st, 0) < 0) {
                                log_debug_errno(errno, "Failed to stat '%s/%s', ignoring: %m", dirpath, de->d_name);
                                continue;
                        }

                /* Is this a masking entry? */
                if ((flags & CONF_FILES_FILTER_MASKED))
                        if (null_or_empty(&st)) {
                                /* Mark this one as masked */
                                r = set_put_strdup(masked, de->d_name);
                                if (r < 0)
                                        return r;

                                log_debug("File '%s/%s' is a mask.", dirpath, de->d_name);
                                continue;
                        }

                /* Does this node have the right type? */
                if (flags & (CONF_FILES_REGULAR|CONF_FILES_DIRECTORY))
                        if (!((flags & CONF_FILES_DIRECTORY) && S_ISDIR(st.st_mode)) &&
                            !((flags & CONF_FILES_REGULAR) && S_ISREG(st.st_mode))) {
                                log_debug("Ignoring '%s/%s', as it does not have the right type.", dirpath, de->d_name);
                                continue;
                        }

                /* Does this node have the executable bit set? */
                if (flags & CONF_FILES_EXECUTABLE)
                        /* As requested: check if the file is marked executable. Note that we don't check access(X_OK)
                         * here, as we care about whether the file is marked executable at all, and not whether it is
                         * executable for us, because if so, such errors are stuff we should log about. */

                        if ((st.st_mode & 0111) == 0) { /* not executable */
                                log_debug("Ignoring '%s/%s', as it is not marked executable.", dirpath, de->d_name);
                                continue;
                        }

                n = strdup(de->d_name);
                if (!n)
                        return -ENOMEM;

                if ((flags & CONF_FILES_BASENAME))
                        r = hashmap_ensure_put(files, &string_hash_ops_free, n, n);
                else {
                        p = path_join(dirpath, de->d_name);
                        if (!p)
                                return -ENOMEM;

                        r = hashmap_ensure_put(files, &string_hash_ops_free_free, n, p);
                }
                if (r < 0)
                        return r;
                assert(r > 0);

                TAKE_PTR(n);
                TAKE_PTR(p);
        }

        return 0;
}

static int copy_and_sort_files_from_hashmap(Hashmap *fh, char ***ret) {
        _cleanup_free_ char **sv = NULL;
        char **files;
        int r;

        assert(ret);

        r = hashmap_dump_sorted(fh, (void***) &sv, /* ret_n = */ NULL);
        if (r < 0)
                return r;

        /* The entries in the array given by hashmap_dump_sorted() are still owned by the hashmap. */
        files = strv_copy(sv);
        if (!files)
                return -ENOMEM;

        *ret = files;
        return 0;
}

int conf_files_list_strv(
                char ***ret,
                const char *suffix,
                const char *root,
                unsigned flags,
                const char * const *dirs) {

        _cleanup_hashmap_free_ Hashmap *fh = NULL;
        _cleanup_set_free_ Set *masked = NULL;
        int r;

        assert(ret);

        STRV_FOREACH(p, dirs) {
                _cleanup_closedir_ DIR *dir = NULL;
                _cleanup_free_ char *path = NULL;

                r = chase_and_opendir(*p, root, CHASE_PREFIX_ROOT, &path, &dir);
                if (r < 0) {
                        if (r != -ENOENT)
                                log_debug_errno(r, "Failed to chase and open directory '%s', ignoring: %m", *p);
                        continue;
                }

                r = files_add(dir, path, &fh, &masked, suffix, flags);
                if (r == -ENOMEM)
                        return r;
                if (r < 0)
                        log_debug_errno(r, "Failed to search for files in '%s', ignoring: %m", path);
        }

        return copy_and_sort_files_from_hashmap(fh, ret);
}

int conf_files_list_strv_at(
                char ***ret,
                const char *suffix,
                int rfd,
                unsigned flags,
                const char * const *dirs) {

        _cleanup_hashmap_free_ Hashmap *fh = NULL;
        _cleanup_set_free_ Set *masked = NULL;
        int r;

        assert(rfd >= 0 || rfd == AT_FDCWD);
        assert(ret);

        STRV_FOREACH(p, dirs) {
                _cleanup_closedir_ DIR *dir = NULL;
                _cleanup_free_ char *path = NULL;

                r = chase_and_opendirat(rfd, *p, CHASE_AT_RESOLVE_IN_ROOT, &path, &dir);
                if (r < 0) {
                        if (r != -ENOENT)
                                log_debug_errno(r, "Failed to chase and open directory '%s', ignoring: %m", *p);
                        continue;
                }

                r = files_add(dir, path, &fh, &masked, suffix, flags);
                if (r == -ENOMEM)
                        return r;
                if (r < 0)
                        log_debug_errno(r, "Failed to search for files in '%s', ignoring: %m", path);
        }

        return copy_and_sort_files_from_hashmap(fh, ret);
}

int conf_files_insert(char ***strv, const char *root, char **dirs, const char *path) {
        /* Insert a path into strv, at the place honouring the usual sorting rules:
         * - we first compare by the basename
         * - and then we compare by dirname, allowing just one file with the given
         *   basename.
         * This means that we will
         * - add a new entry if basename(path) was not on the list,
         * - do nothing if an entry with higher priority was already present,
         * - do nothing if our new entry matches the existing entry,
         * - replace the existing entry if our new entry has higher priority.
         */
        size_t i, n;
        char *t;
        int r;

        n = strv_length(*strv);
        for (i = 0; i < n; i++) {
                int c;

                c = path_compare_filename((*strv)[i], path);
                if (c == 0)
                        /* Oh, there already is an entry with a matching name (the last component). */
                        STRV_FOREACH(dir, dirs) {
                                _cleanup_free_ char *rdir = NULL;
                                char *p1, *p2;

                                rdir = path_join(root, *dir);
                                if (!rdir)
                                        return -ENOMEM;

                                p1 = path_startswith((*strv)[i], rdir);
                                if (p1)
                                        /* Existing entry with higher priority
                                         * or same priority, no need to do anything. */
                                        return 0;

                                p2 = path_startswith(path, *dir);
                                if (p2) {
                                        /* Our new entry has higher priority */

                                        t = path_join(root, path);
                                        if (!t)
                                                return log_oom();

                                        return free_and_replace((*strv)[i], t);
                                }
                        }

                else if (c > 0)
                        /* Following files have lower priority, let's go insert our
                         * new entry. */
                        break;

                /* … we are not there yet, let's continue */
        }

        /* The new file has lower priority than all the existing entries */
        t = path_join(root, path);
        if (!t)
                return -ENOMEM;

        r = strv_insert(strv, i, t);
        if (r < 0)
                free(t);

        return r;
}

int conf_files_list(char ***ret, const char *suffix, const char *root, unsigned flags, const char *dir) {
        return conf_files_list_strv(ret, suffix, root, flags, STRV_MAKE_CONST(dir));
}

int conf_files_list_at(char ***ret, const char *suffix, int rfd, unsigned flags, const char *dir) {
        return conf_files_list_strv_at(ret, suffix, rfd, flags, STRV_MAKE_CONST(dir));
}

int conf_files_list_nulstr(char ***ret, const char *suffix, const char *root, unsigned flags, const char *dirs) {
        _cleanup_strv_free_ char **d = NULL;

        assert(ret);

        d = strv_split_nulstr(dirs);
        if (!d)
                return -ENOMEM;

        return conf_files_list_strv(ret, suffix, root, flags, (const char**) d);
}

int conf_files_list_nulstr_at(char ***ret, const char *suffix, int rfd, unsigned flags, const char *dirs) {
        _cleanup_strv_free_ char **d = NULL;

        assert(ret);

        d = strv_split_nulstr(dirs);
        if (!d)
                return -ENOMEM;

        return conf_files_list_strv_at(ret, suffix, rfd, flags, (const char**) d);
}

int conf_files_list_with_replacement(
                const char *root,
                char **config_dirs,
                const char *replacement,
                char ***ret_files,
                char **ret_replace_file) {

        _cleanup_strv_free_ char **f = NULL;
        _cleanup_free_ char *p = NULL;
        int r;

        assert(config_dirs);
        assert(ret_files);
        assert(ret_replace_file || !replacement);

        r = conf_files_list_strv(&f, ".conf", root, 0, (const char* const*) config_dirs);
        if (r < 0)
                return log_error_errno(r, "Failed to enumerate config files: %m");

        if (replacement) {
                r = conf_files_insert(&f, root, config_dirs, replacement);
                if (r < 0)
                        return log_error_errno(r, "Failed to extend config file list: %m");

                p = path_join(root, replacement);
                if (!p)
                        return log_oom();
        }

        *ret_files = TAKE_PTR(f);
        if (ret_replace_file)
                *ret_replace_file = TAKE_PTR(p);

        return 0;
}

int conf_files_list_dropins(
                char ***ret,
                const char *dropin_dirname,
                const char *root,
                const char * const *dirs) {

        _cleanup_strv_free_ char **dropin_dirs = NULL;
        const char *suffix;
        int r;

        assert(ret);
        assert(dropin_dirname);
        assert(dirs);

        suffix = strjoina("/", dropin_dirname);
        r = strv_extend_strv_concat(&dropin_dirs, dirs, suffix);
        if (r < 0)
                return r;

        return conf_files_list_strv(ret, ".conf", root, 0, (const char* const*) dropin_dirs);
}

/**
 * Open and read a config file.
 *
 * The <fn> argument may be:
 * - '-', meaning stdin.
 * - a file name without a path. In this case <config_dirs> are searched.
 * - a path, either relative or absolute. In this case <fn> is opened directly.
 *
 * This method is only suitable for configuration files which have a flat layout without dropins.
 */
int conf_file_read(
                const char *root,
                const char **config_dirs,
                const char *fn,
                parse_line_t parse_line,
                void *userdata,
                bool ignore_enoent,
                bool *invalid_config) {

        _cleanup_fclose_ FILE *_f = NULL;
        _cleanup_free_ char *_fn = NULL;
        unsigned v = 0;
        FILE *f;
        int r = 0;

        assert(fn);

        if (streq(fn, "-")) {
                f = stdin;
                fn = "<stdin>";

                log_debug("Reading config from stdin%s", glyph(GLYPH_ELLIPSIS));

        } else if (is_path(fn)) {
                r = path_make_absolute_cwd(fn, &_fn);
                if (r < 0)
                        return log_error_errno(r, "Failed to make path absolute: %m");
                fn = _fn;

                f = _f = fopen(fn, "re");
                if (!_f)
                        r = -errno;
                else
                        log_debug("Reading config file \"%s\"%s", fn, glyph(GLYPH_ELLIPSIS));

        } else {
                r = search_and_fopen(fn, "re", root, config_dirs, &_f, &_fn);
                if (r >= 0) {
                        f = _f;
                        fn = _fn;
                        log_debug("Reading config file \"%s\"%s", fn, glyph(GLYPH_ELLIPSIS));
                }
        }

        if (r == -ENOENT && ignore_enoent) {
                log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn);
                return 0; /* No error, but nothing happened. */
        }
        if (r < 0)
                return log_error_errno(r, "Failed to read '%s': %m", fn);

        r = 1;  /* We entered the part where we may modify state. */

        for (;;) {
                _cleanup_free_ char *line = NULL;
                bool invalid_line = false;
                int k;

                k = read_stripped_line(f, LONG_LINE_MAX, &line);
                if (k < 0)
                        return log_error_errno(k, "Failed to read '%s': %m", fn);
                if (k == 0)
                        break;

                v++;

                if (IN_SET(line[0], 0, '#'))
                        continue;

                k = parse_line(fn, v, line, invalid_config ? &invalid_line : NULL, userdata);
                if (k < 0 && invalid_line)
                        /* Allow reporting with a special code if the caller requested this. */
                        *invalid_config = true;
                else
                        /* The first error, if any, becomes our return value. */
                        RET_GATHER(r, k);
        }

        if (ferror(f))
                RET_GATHER(r, log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to read from file %s.", fn));

        return r;
}

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <stdio.h>
4	#include <stdlib.h>
5
6	#include "alloc-util.h"
7	#include "chase.h"
8	#include "conf-files.h"
9	#include "dirent-util.h"
10	#include "errno-util.h"
11	#include "fd-util.h"
12	#include "fileio.h"
13	#include "glyph-util.h"
14	#include "hashmap.h"
15	#include "log.h"
16	#include "nulstr-util.h"
17	#include "path-util.h"
18	#include "set.h"
19	#include "stat-util.h"
20	#include "string-util.h"
21	#include "strv.h"
22
23	static int files_add(	37,748✔
24	DIR *dir,
25	const char *dirpath,
26	Hashmap **files,
27	Set **masked,
28	const char *suffix,
29	unsigned flags) {
30
31	int r;	37,748✔
32
33	assert(dir);	37,748✔
34	assert(dirpath);	37,748✔
35	assert(files);	37,748✔
36	assert(masked);	37,748✔
37
38	FOREACH_DIRENT(de, dir, return -errno) {	305,275✔
39	_cleanup_free_ char n = NULL, p = NULL;	192,031✔
40	struct stat st;	192,031✔
41
42	/* Does this match the suffix? */
43	if (suffix && !endswith(de->d_name, suffix))	192,031✔
44	continue;	89,554✔
45
46	/* Has this file already been found in an earlier directory? */
47	if (hashmap_contains(*files, de->d_name)) {	102,477✔
48	log_debug("Skipping overridden file '%s/%s'.", dirpath, de->d_name);	125✔
49	continue;	125✔
50	}
51
52	/* Has this been masked in an earlier directory? */
53	if ((flags & CONF_FILES_FILTER_MASKED) && set_contains(*masked, de->d_name)) {	102,352✔
54	log_debug("File '%s/%s' is masked by previous entry.", dirpath, de->d_name);	15✔
55	continue;	15✔
56	}
57
58	/* Read file metadata if we shall validate the check for file masks, for node types or whether the node is marked executable. */
59	if (flags & (CONF_FILES_FILTER_MASKED\|CONF_FILES_REGULAR\|CONF_FILES_DIRECTORY\|CONF_FILES_EXECUTABLE))	102,337✔
60	if (fstatat(dirfd(dir), de->d_name, &st, 0) < 0) {	2,860✔
UNCOV 61	log_debug_errno(errno, "Failed to stat '%s/%s', ignoring: %m", dirpath, de->d_name);	×
UNCOV 62	continue;	×
63	}
64
65	/* Is this a masking entry? */
66	if ((flags & CONF_FILES_FILTER_MASKED))	2,860✔
67	if (null_or_empty(&st)) {	2,599✔
68	/* Mark this one as masked */
69	r = set_put_strdup(masked, de->d_name);	25✔
70	if (r < 0)	25✔
71	return r;
72
73	log_debug("File '%s/%s' is a mask.", dirpath, de->d_name);	25✔
74	continue;	25✔
75	}
76
77	/* Does this node have the right type? */
78	if (flags & (CONF_FILES_REGULAR\|CONF_FILES_DIRECTORY))	102,312✔
79	if (!((flags & CONF_FILES_DIRECTORY) && S_ISDIR(st.st_mode)) &&	2,760✔
80	!((flags & CONF_FILES_REGULAR) && S_ISREG(st.st_mode))) {	2,609✔
UNCOV 81	log_debug("Ignoring '%s/%s', as it does not have the right type.", dirpath, de->d_name);	×
UNCOV 82	continue;	×
83	}
84
85	/* Does this node have the executable bit set? */
86	if (flags & CONF_FILES_EXECUTABLE)	102,312✔
87	/* As requested: check if the file is marked executable. Note that we don't check access(X_OK)
88	* here, as we care about whether the file is marked executable at all, and not whether it is
89	* executable for us, because if so, such errors are stuff we should log about. */
90
91	if ((st.st_mode & 0111) == 0) { /* not executable */	899✔
UNCOV 92	log_debug("Ignoring '%s/%s', as it is not marked executable.", dirpath, de->d_name);	×
UNCOV 93	continue;	×
94	}
95
96	n = strdup(de->d_name);	102,312✔
97	if (!n)	102,312✔
98	return -ENOMEM;
99
100	if ((flags & CONF_FILES_BASENAME))	102,312✔
101	r = hashmap_ensure_put(files, &string_hash_ops_free, n, n);	12✔
102	else {
103	p = path_join(dirpath, de->d_name);	102,300✔
104	if (!p)	102,300✔
105	return -ENOMEM;
106
107	r = hashmap_ensure_put(files, &string_hash_ops_free_free, n, p);	102,300✔
108	}
109	if (r < 0)	102,312✔
110	return r;
111	assert(r > 0);	102,312✔
112
113	TAKE_PTR(n);	102,312✔
114	TAKE_PTR(p);	102,312✔
115	}
116
117	return 0;
118	}
119
120	static int copy_and_sort_files_from_hashmap(Hashmap fh, char **ret) {	104,957✔
121	_cleanup_free_ char **sv = NULL;	104,957✔
122	char **files;	104,957✔
123	int r;	104,957✔
124
125	assert(ret);	104,957✔
126
127	r = hashmap_dump_sorted(fh, (void**) &sv, / ret_n = */ NULL);	104,957✔
128	if (r < 0)	104,957✔
129	return r;
130
131	/* The entries in the array given by hashmap_dump_sorted() are still owned by the hashmap. */
132	files = strv_copy(sv);	104,957✔
133	if (!files)	104,957✔
134	return -ENOMEM;
135
136	*ret = files;	104,957✔
137	return 0;	104,957✔
138	}
139
140	int conf_files_list_strv(	104,949✔
141	char ***ret,
142	const char *suffix,
143	const char *root,
144	unsigned flags,
145	const char * const *dirs) {
146
147	_cleanup_hashmap_free_ Hashmap *fh = NULL;	104,949✔
148	_cleanup_set_free_ Set *masked = NULL;	104,949✔
149	int r;	104,949✔
150
151	assert(ret);	104,949✔
152
153	STRV_FOREACH(p, dirs) {	719,102✔
154	_cleanup_closedir_ DIR *dir = NULL;	614,153✔
155	_cleanup_free_ char *path = NULL;	614,153✔
156
157	r = chase_and_opendir(*p, root, CHASE_PREFIX_ROOT, &path, &dir);	614,153✔
158	if (r < 0) {	614,153✔
159	if (r != -ENOENT)	576,417✔
UNCOV 160	log_debug_errno(r, "Failed to chase and open directory '%s', ignoring: %m", *p);	×
161	continue;	576,417✔
162	}
163
164	r = files_add(dir, path, &fh, &masked, suffix, flags);	37,736✔
165	if (r == -ENOMEM)	37,736✔
UNCOV 166	return r;	×
167	if (r < 0)	37,736✔
168	log_debug_errno(r, "Failed to search for files in '%s', ignoring: %m", path);	37,736✔
169	}
170
171	return copy_and_sort_files_from_hashmap(fh, ret);	104,949✔
172	}
173
174	int conf_files_list_strv_at(	8✔
175	char ***ret,
176	const char *suffix,
177	int rfd,
178	unsigned flags,
179	const char * const *dirs) {
180
181	_cleanup_hashmap_free_ Hashmap *fh = NULL;	8✔
182	_cleanup_set_free_ Set *masked = NULL;	8✔
183	int r;	8✔
184
185	assert(rfd >= 0 \|\| rfd == AT_FDCWD);	8✔
186	assert(ret);	8✔
187
188	STRV_FOREACH(p, dirs) {	20✔
189	_cleanup_closedir_ DIR *dir = NULL;	12✔
190	_cleanup_free_ char *path = NULL;	12✔
191
192	r = chase_and_opendirat(rfd, *p, CHASE_AT_RESOLVE_IN_ROOT, &path, &dir);	12✔
193	if (r < 0) {	12✔
UNCOV 194	if (r != -ENOENT)	×
UNCOV 195	log_debug_errno(r, "Failed to chase and open directory '%s', ignoring: %m", *p);	×
UNCOV 196	continue;	×
197	}
198
199	r = files_add(dir, path, &fh, &masked, suffix, flags);	12✔
200	if (r == -ENOMEM)	12✔
201	return r;	×
202	if (r < 0)	12✔
203	log_debug_errno(r, "Failed to search for files in '%s', ignoring: %m", path);	12✔
204	}
205
206	return copy_and_sort_files_from_hashmap(fh, ret);	8✔
207	}
208
209	int conf_files_insert(char **strv, const char root, char *dirs, const char path) {	74✔
210	/* Insert a path into strv, at the place honouring the usual sorting rules:
211	* - we first compare by the basename
212	* - and then we compare by dirname, allowing just one file with the given
213	* basename.
214	* This means that we will
215	* - add a new entry if basename(path) was not on the list,
216	* - do nothing if an entry with higher priority was already present,
217	* - do nothing if our new entry matches the existing entry,
218	* - replace the existing entry if our new entry has higher priority.
219	*/
220	size_t i, n;	74✔
221	char *t;	74✔
222	int r;	74✔
223
224	n = strv_length(*strv);	74✔
225	for (i = 0; i < n; i++) {	107✔
226	int c;	101✔
227
228	c = path_compare_filename((*strv)[i], path);	101✔
229	if (c == 0)	101✔
230	/* Oh, there already is an entry with a matching name (the last component). */
231	STRV_FOREACH(dir, dirs) {	92✔
232	_cleanup_free_ char *rdir = NULL;	92✔
233	char p1, p2;	92✔
234
235	rdir = path_join(root, *dir);	92✔
236	if (!rdir)	92✔
237	return -ENOMEM;
238
239	p1 = path_startswith((*strv)[i], rdir);	92✔
240	if (p1)	92✔
241	/* Existing entry with higher priority
242	* or same priority, no need to do anything. */
243	return 0;
244
245	p2 = path_startswith(path, *dir);	33✔
246	if (p2) {	33✔
247	/* Our new entry has higher priority */
248
249	t = path_join(root, path);	3✔
250	if (!t)	3✔
UNCOV 251	return log_oom();	×
252
253	return free_and_replace((*strv)[i], t);	3✔
254	}
255	}
256
257	else if (c > 0)	39✔
258	/* Following files have lower priority, let's go insert our
259	* new entry. */
260	break;
261
262	/* … we are not there yet, let's continue */
263	}
264
265	/* The new file has lower priority than all the existing entries */
266	t = path_join(root, path);	12✔
267	if (!t)	12✔
268	return -ENOMEM;
269
270	r = strv_insert(strv, i, t);	12✔
271	if (r < 0)	12✔
UNCOV 272	free(t);	×
273
274	return r;
275	}
276
277	int conf_files_list(char **ret, const char suffix, const char root, unsigned flags, const char dir) {	4✔
278	return conf_files_list_strv(ret, suffix, root, flags, STRV_MAKE_CONST(dir));	4✔
279	}
280
281	int conf_files_list_at(char **ret, const char suffix, int rfd, unsigned flags, const char *dir) {	4✔
282	return conf_files_list_strv_at(ret, suffix, rfd, flags, STRV_MAKE_CONST(dir));	4✔
283	}
284
285	int conf_files_list_nulstr(char **ret, const char suffix, const char root, unsigned flags, const char dirs) {	13,297✔
286	_cleanup_strv_free_ char **d = NULL;	13,297✔
287
288	assert(ret);	13,297✔
289
290	d = strv_split_nulstr(dirs);	13,297✔
291	if (!d)	13,297✔
292	return -ENOMEM;
293
294	return conf_files_list_strv(ret, suffix, root, flags, (const char**) d);	13,297✔
295	}
296
UNCOV 297	int conf_files_list_nulstr_at(char **ret, const char suffix, int rfd, unsigned flags, const char *dirs) {	×
UNCOV 298	_cleanup_strv_free_ char **d = NULL;	×
299
UNCOV 300	assert(ret);	×
301
302	d = strv_split_nulstr(dirs);	×
303	if (!d)	×
304	return -ENOMEM;
305
UNCOV 306	return conf_files_list_strv_at(ret, suffix, rfd, flags, (const char**) d);	×
307	}
308
309	int conf_files_list_with_replacement(	633✔
310	const char *root,
311	char **config_dirs,
312	const char *replacement,
313	char ***ret_files,
314	char **ret_replace_file) {
315
UNCOV 316	_cleanup_strv_free_ char **f = NULL;	×
317	_cleanup_free_ char *p = NULL;	633✔
318	int r;	633✔
319
320	assert(config_dirs);	633✔
321	assert(ret_files);	633✔
322	assert(ret_replace_file \|\| !replacement);	633✔
323
324	r = conf_files_list_strv(&f, ".conf", root, 0, (const char* const*) config_dirs);	633✔
325	if (r < 0)	633✔
UNCOV 326	return log_error_errno(r, "Failed to enumerate config files: %m");	×
327
328	if (replacement) {	633✔
329	r = conf_files_insert(&f, root, config_dirs, replacement);	35✔
330	if (r < 0)	35✔
331	return log_error_errno(r, "Failed to extend config file list: %m");	×
332
333	p = path_join(root, replacement);	35✔
334	if (!p)	35✔
UNCOV 335	return log_oom();	×
336	}
337
338	*ret_files = TAKE_PTR(f);	633✔
339	if (ret_replace_file)	633✔
340	*ret_replace_file = TAKE_PTR(p);	633✔
341
342	return 0;
343	}
344
345	int conf_files_list_dropins(	47,798✔
346	char ***ret,
347	const char *dropin_dirname,
348	const char *root,
349	const char * const *dirs) {
350
351	_cleanup_strv_free_ char **dropin_dirs = NULL;	47,798✔
352	const char *suffix;	47,798✔
353	int r;	47,798✔
354
355	assert(ret);	47,798✔
356	assert(dropin_dirname);	47,798✔
357	assert(dirs);	47,798✔
358
359	suffix = strjoina("/", dropin_dirname);	238,990✔
360	r = strv_extend_strv_concat(&dropin_dirs, dirs, suffix);	47,798✔
361	if (r < 0)	47,798✔
362	return r;
363
364	return conf_files_list_strv(ret, ".conf", root, 0, (const char* const*) dropin_dirs);	47,798✔
365	}
366
367	/**
368	* Open and read a config file.
369	*
370	* The <fn> argument may be:
371	* - '-', meaning stdin.
372	* - a file name without a path. In this case <config_dirs> are searched.
373	* - a path, either relative or absolute. In this case <fn> is opened directly.
374	*
375	* This method is only suitable for configuration files which have a flat layout without dropins.
376	*/
377	int conf_file_read(	15,690✔
378	const char *root,
379	const char **config_dirs,
380	const char *fn,
381	parse_line_t parse_line,
382	void *userdata,
383	bool ignore_enoent,
384	bool *invalid_config) {
385
386	_cleanup_fclose_ FILE *_f = NULL;	15,690✔
387	_cleanup_free_ char *_fn = NULL;	15,690✔
388	unsigned v = 0;	15,690✔
389	FILE *f;	15,690✔
390	int r = 0;	15,690✔
391
392	assert(fn);	15,690✔
393
394	if (streq(fn, "-")) {	15,690✔
395	f = stdin;	175✔
396	fn = "<stdin>";	175✔
397
398	log_debug("Reading config from stdin%s", glyph(GLYPH_ELLIPSIS));	207✔
399
400	} else if (is_path(fn)) {	15,515✔
401	r = path_make_absolute_cwd(fn, &_fn);	15,515✔
402	if (r < 0)	15,515✔
UNCOV 403	return log_error_errno(r, "Failed to make path absolute: %m");	×
404	fn = _fn;	15,515✔
405
406	f = _f = fopen(fn, "re");	15,515✔
407	if (!_f)	15,515✔
408	r = -errno;	358✔
409	else
410	log_debug("Reading config file \"%s\"%s", fn, glyph(GLYPH_ELLIPSIS));	30,021✔
411
412	} else {
UNCOV 413	r = search_and_fopen(fn, "re", root, config_dirs, &_f, &_fn);	×
UNCOV 414	if (r >= 0) {	×
UNCOV 415	f = _f;	×
UNCOV 416	fn = _fn;	×
UNCOV 417	log_debug("Reading config file \"%s\"%s", fn, glyph(GLYPH_ELLIPSIS));	×
418	}
419	}
420
421	if (r == -ENOENT && ignore_enoent) {	15,690✔
422	log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn);	358✔
423	return 0; /* No error, but nothing happened. */	358✔
424	}
425	if (r < 0)	15,332✔
UNCOV 426	return log_error_errno(r, "Failed to read '%s': %m", fn);	×
427
428	r = 1; /* We entered the part where we may modify state. */
429
430	for (;;) {	199,347✔
431	_cleanup_free_ char *line = NULL;	184,015✔
432	bool invalid_line = false;	199,347✔
433	int k;	199,347✔
434
435	k = read_stripped_line(f, LONG_LINE_MAX, &line);	199,347✔
436	if (k < 0)	199,347✔
UNCOV 437	return log_error_errno(k, "Failed to read '%s': %m", fn);	×
438	if (k == 0)	199,347✔
439	break;
440
441	v++;	184,015✔
442
443	if (IN_SET(line[0], 0, '#'))	184,015✔
444	continue;	118,704✔
445
446	k = parse_line(fn, v, line, invalid_config ? &invalid_line : NULL, userdata);	65,986✔
447	if (k < 0 && invalid_line)	65,311✔
448	/* Allow reporting with a special code if the caller requested this. */
449	*invalid_config = true;	10✔
450	else
451	/* The first error, if any, becomes our return value. */
452	RET_GATHER(r, k);	65,301✔
453	}
454
455	if (ferror(f))	15,332✔
UNCOV 456	RET_GATHER(r, log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to read from file %s.", fn));	×
457
458	return r;
459	}

systemd / systemd / 15263807472

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