21846209963

Committed 09 Feb 2026 03:52PM UTC coverage: 72.697% (-0.02%) from 72.716%

Build # 21846209963

Build Type

push

github

Committed by

daandemeyer

Commit Message

meson: guard symlinks in sysconfdir behind install_sysconfidr

Symlinks to files inside sysconfdir are now only installed if
ìnstall_sysconfdir=true (which is the default).

If sshconfdir,sshdconfdir,shellprofiledir are not inside sysconfdir and
install_sysconfidr=false, these symlinks are still installed to the
configured directory.

Run Details

311951 of 429113 relevant lines covered (72.7%)

1156102.48 hits per line

Source File
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90.7

/src/basic/tmpfile-util.c

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

#include <stdlib.h>
#include <unistd.h>

#include "alloc-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "fs-util.h"
#include "log.h"
#include "path-util.h"
#include "random-util.h"
#include "string-util.h"
#include "sync-util.h"
#include "tmpfile-util.h"
#include "umask-util.h"

static int fopen_temporary_internal(int dir_fd, const char *path, FILE **ret_file) {
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_close_ int fd = -EBADF;
        int r;

        assert(dir_fd >= 0 || dir_fd == AT_FDCWD);
        assert(path);

        fd = openat(dir_fd, path, O_CLOEXEC|O_NOCTTY|O_RDWR|O_CREAT|O_EXCL, 0600);
        if (fd < 0)
                return -errno;

        /* This assumes that returned FILE object is short-lived and used within the same single-threaded
         * context and never shared externally, hence locking is not necessary. */

        r = take_fdopen_unlocked(&fd, "w", &f);
        if (r < 0) {
                (void) unlinkat(dir_fd, path, 0);
                return r;
        }

        if (ret_file)
                *ret_file = TAKE_PTR(f);

        return 0;
}

int fopen_temporary_at(int dir_fd, const char *path, FILE **ret_file, char **ret_path) {
        _cleanup_free_ char *t = NULL;
        int r;

        assert(dir_fd >= 0 || dir_fd == AT_FDCWD);
        assert(path);

        r = tempfn_random(path, NULL, &t);
        if (r < 0)
                return r;

        r = fopen_temporary_internal(dir_fd, t, ret_file);
        if (r < 0)
                return r;

        if (ret_path)
                *ret_path = TAKE_PTR(t);

        return 0;
}

int fopen_temporary_child_at(int dir_fd, const char *path, FILE **ret_file, char **ret_path) {
        _cleanup_free_ char *t = NULL;
        int r;

        assert(dir_fd >= 0 || dir_fd == AT_FDCWD);

        if (!path) {
                r = tmp_dir(&path);
                if (r < 0)
                        return r;
        }

        r = tempfn_random_child(path, NULL, &t);
        if (r < 0)
                return r;

        r = fopen_temporary_internal(dir_fd, t, ret_file);
        if (r < 0)
                return r;

        if (ret_path)
                *ret_path = TAKE_PTR(t);

        return 0;
}

/* This is much like mkostemp() but is subject to umask(). */
int mkostemp_safe(char *pattern) {
        assert(pattern);
        BLOCK_WITH_UMASK(0077);
        return RET_NERRNO(mkostemp(pattern, O_CLOEXEC));
}

int fmkostemp_safe(char *pattern, const char *mode, FILE **ret_f) {
        _cleanup_close_ int fd = -EBADF;
        FILE *f;

        fd = mkostemp_safe(pattern);
        if (fd < 0)
                return fd;

        f = take_fdopen(&fd, mode);
        if (!f)
                return -errno;

        *ret_f = f;
        return 0;
}

void unlink_tempfilep(char (*p)[]) {
        assert(p);

        /* If the file is created with mkstemp(), it will (almost always) change the suffix.
         * Treat this as a sign that the file was successfully created. We ignore both the rare case
         * where the original suffix is used and unlink failures. */

        if (!endswith(*p, ".XXXXXX"))
                (void) unlink(*p);
}

static int tempfn_build(const char *p, const char *pre, const char *post, bool child, char **ret) {
        _cleanup_free_ char *d = NULL, *fn = NULL, *nf = NULL, *result = NULL;
        size_t len_pre, len_post, len_add;
        int r;

        assert(p);
        assert(ret);

        /*
         * Turns this:
         *         /foo/bar/waldo
         *
         * Into this :
         *         /foo/bar/waldo/.#<pre><post> (child == true)
         *         /foo/bar/.#<pre>waldo<post> (child == false)
         */

        if (pre && strchr(pre, '/'))
                return -EINVAL;

        if (post && strchr(post, '/'))
                return -EINVAL;

        len_pre = strlen_ptr(pre);
        len_post = strlen_ptr(post);
        /* NAME_MAX is counted *without* the trailing NUL byte. */
        if (len_pre > NAME_MAX - STRLEN(".#") ||
            len_post > NAME_MAX - STRLEN(".#") - len_pre)
                return -EINVAL;

        len_add = len_pre + len_post + STRLEN(".#");

        if (child) {
                d = strdup(p);
                if (!d)
                        return -ENOMEM;
        } else {
                r = path_split_prefix_filename(p, &d, &fn);
                if (r < 0)
                        return r;

                /* Truncate the filename if it would become too long after mangling. */
                strshorten(fn, NAME_MAX - len_add);
        }

        nf = strjoin(".#", strempty(pre), strempty(fn), strempty(post));
        if (!nf)
                return -ENOMEM;

        if (d) {
                if (!path_extend(&d, nf))
                        return -ENOMEM;

                result = path_simplify(TAKE_PTR(d));
        } else
                result = TAKE_PTR(nf);

        if (!path_is_valid(result)) /* New path is not valid? (Maybe because too long?) Refuse. */
                return -EINVAL;

        *ret = TAKE_PTR(result);
        return 0;
}

int tempfn_xxxxxx(const char *p, const char *extra, char **ret) {
        /*
         * Turns this:
         *         /foo/bar/waldo
         *
         * Into this:
         *         /foo/bar/.#<extra>waldoXXXXXX
         */

        return tempfn_build(p, extra, "XXXXXX", /* child= */ false, ret);
}

int tempfn_random(const char *p, const char *extra, char **ret) {
        _cleanup_free_ char *s = NULL;

        assert(p);
        assert(ret);

        /*
         * Turns this:
         *         /foo/bar/waldo
         *
         * Into this:
         *         /foo/bar/.#<extra>waldobaa2a261115984a9
         */

        if (asprintf(&s, "%016" PRIx64, random_u64()) < 0)
                return -ENOMEM;

        return tempfn_build(p, extra, s, /* child= */ false, ret);
}

int tempfn_random_child(const char *p, const char *extra, char **ret) {
        _cleanup_free_ char *s = NULL;
        int r;

        assert(ret);

        /* Turns this:
         *         /foo/bar/waldo
         * Into this:
         *         /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
         */

        if (!p) {
                r = tmp_dir(&p);
                if (r < 0)
                        return r;
        }

        if (asprintf(&s, "%016" PRIx64, random_u64()) < 0)
                return -ENOMEM;

        return tempfn_build(p, extra, s, /* child= */ true, ret);
}

int open_tmpfile_unlinkable(const char *directory, int flags) {
        int r;

        if (!directory) {
                r = tmp_dir(&directory);
                if (r < 0)
                        return r;
        } else if (isempty(directory))
                return -EINVAL;

        /* Returns an unlinked temporary file that cannot be linked into the file system anymore */

        /* Try O_TMPFILE first, if it is supported */
        int fd = open(directory, flags|O_TMPFILE|O_EXCL, S_IRUSR|S_IWUSR);
        if (fd >= 0)
                return fd;

        /* Fall back to unguessable name + unlinking */
        _cleanup_free_ char *p = path_join(directory, "/systemd-tmp-XXXXXX");
        if (!p)
                return -ENOMEM;

        fd = mkostemp_safe(p);
        if (fd < 0)
                return fd;

        (void) unlink(p);

        return fd;
}

int open_tmpfile_linkable_at(int dir_fd, const char *target, int flags, char **ret_path) {
        int r;

        assert(target);
        assert(ret_path);

        /* Don't allow O_EXCL, as that has a special meaning for O_TMPFILE */
        assert((flags & O_EXCL) == 0);

        /* Creates a temporary file, that shall be renamed to "target" later. If possible, this uses O_TMPFILE – in
         * which case "ret_path" will be returned as NULL. If not possible the temporary path name used is returned in
         * "ret_path". Use link_tmpfile() below to rename the result after writing the file in full. */

        int fd = open_parent_at(dir_fd, target, O_TMPFILE|flags, 0640);
        if (fd >= 0) {
                *ret_path = NULL;
                return fd;
        }

        log_debug_errno(fd, "Failed to use O_TMPFILE for %s: %m", target);

        _cleanup_free_ char *tmp = NULL;
        r = tempfn_random(target, NULL, &tmp);
        if (r < 0)
                return r;

        fd = openat(dir_fd, tmp, O_CREAT|O_EXCL|O_NOFOLLOW|O_NOCTTY|flags, 0640);
        if (fd < 0)
                return -errno;

        *ret_path = TAKE_PTR(tmp);

        return fd;
}

int fopen_tmpfile_linkable_at(int dir_fd, const char *target, int flags, char **ret_path, FILE **ret_file) {
        _cleanup_free_ char *path = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_close_ int fd = -EBADF;

        assert(target);
        assert(ret_file);
        assert(ret_path);

        fd = open_tmpfile_linkable_at(dir_fd, target, flags, &path);
        if (fd < 0)
                return fd;

        f = take_fdopen(&fd, "w");
        if (!f)
                return -ENOMEM;

        *ret_path = TAKE_PTR(path);
        *ret_file = TAKE_PTR(f);
        return 0;
}

int link_tmpfile_at(int fd, int dir_fd, const char *path, const char *target, LinkTmpfileFlags flags) {
        int r;

        assert(fd >= 0);
        assert(dir_fd >= 0 || dir_fd == AT_FDCWD);
        assert(target);

        /* Moves a temporary file created with open_tmpfile() above into its final place. If "path" is NULL
         * an fd created with O_TMPFILE is assumed, and linkat() is used. Otherwise it is assumed O_TMPFILE
         * is not supported on the directory, and renameat2() is used instead. */

        if (FLAGS_SET(flags, LINK_TMPFILE_SYNC) && fsync(fd) < 0)
                return -errno;

        if (path) {
                if (FLAGS_SET(flags, LINK_TMPFILE_REPLACE))
                        r = RET_NERRNO(renameat(dir_fd, path, dir_fd, target));
                else
                        r = rename_noreplace(dir_fd, path, dir_fd, target);
        } else {
                if (FLAGS_SET(flags, LINK_TMPFILE_REPLACE))
                        r = linkat_replace(fd, /* oldpath= */ NULL, dir_fd, target);
                else
                        r = link_fd(fd, dir_fd, target);
        }
        if (r < 0)
                return r;

        if (FLAGS_SET(flags, LINK_TMPFILE_SYNC)) {
                r = fsync_full(fd);
                if (r < 0)
                        return r;
        }

        return 0;
}

int flink_tmpfile_at(FILE *f, int dir_fd, const char *path, const char *target, LinkTmpfileFlags flags) {
        int fd, r;

        assert(f);
        assert(target);

        fd = fileno(f);
        if (fd < 0) /* Not all FILE* objects encapsulate fds */
                return -EBADF;

        r = fflush_and_check(f);
        if (r < 0)
                return r;

        return link_tmpfile_at(fd, dir_fd, path, target, flags);
}

int mkdtemp_malloc(const char *template, char **ret) {
        _cleanup_free_ char *p = NULL;
        int r;

        assert(ret);

        if (template)
                p = strdup(template);
        else {
                const char *tmp;

                r = tmp_dir(&tmp);
                if (r < 0)
                        return r;

                p = path_join(tmp, "XXXXXX");
        }
        if (!p)
                return -ENOMEM;

        if (!mkdtemp(p))
                return -errno;

        *ret = TAKE_PTR(p);
        return 0;
}

int mkdtemp_open(const char *template, int flags, char **ret) {
        _cleanup_free_ char *p = NULL;
        int fd, r;

        r = mkdtemp_malloc(template, &p);
        if (r < 0)
                return r;

        fd = RET_NERRNO(open(p, O_DIRECTORY|O_CLOEXEC|flags));
        if (fd < 0) {
                (void) rmdir(p);
                return fd;
        }

        if (ret)
                *ret = TAKE_PTR(p);

        return fd;
}

void cleanup_tmpfile_data_done(struct cleanup_tmpfile_data *d) {
        assert(d);

        if (!d->dir_fd ||
            *d->dir_fd < 0 ||
            !d->filename ||
            !*d->filename)
                return;

        PROTECT_ERRNO;

        (void) unlinkat(*d->dir_fd, *d->filename, /* flags= */ 0);
        d->dir_fd = NULL;
        d->filename = NULL;
}

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <stdlib.h>
4	#include <unistd.h>
5
6	#include "alloc-util.h"
7	#include "errno-util.h"
8	#include "fd-util.h"
9	#include "fileio.h"
10	#include "fs-util.h"
11	#include "log.h"
12	#include "path-util.h"
13	#include "random-util.h"
14	#include "string-util.h"
15	#include "sync-util.h"
16	#include "tmpfile-util.h"
17	#include "umask-util.h"
18
19	static int fopen_temporary_internal(int dir_fd, const char path, FILE *ret_file) {	183,222✔
20	_cleanup_fclose_ FILE *f = NULL;	183,222✔
21	_cleanup_close_ int fd = -EBADF;	183,222✔
22	int r;	183,222✔
23
24	assert(dir_fd >= 0 \|\| dir_fd == AT_FDCWD);	183,222✔
25	assert(path);	183,222✔
26
27	fd = openat(dir_fd, path, O_CLOEXEC\|O_NOCTTY\|O_RDWR\|O_CREAT\|O_EXCL, 0600);	183,222✔
28	if (fd < 0)	183,222✔
29	return -errno;	1✔
30
31	/* This assumes that returned FILE object is short-lived and used within the same single-threaded
32	* context and never shared externally, hence locking is not necessary. */
33
34	r = take_fdopen_unlocked(&fd, "w", &f);	183,221✔
35	if (r < 0) {	183,221✔
36	(void) unlinkat(dir_fd, path, 0);	×
37	return r;	×
38	}
39
40	if (ret_file)	183,221✔
41	*ret_file = TAKE_PTR(f);	183,221✔
42
43	return 0;
44	}
45
46	int fopen_temporary_at(int dir_fd, const char path, FILE ret_file, char *ret_path) {	183,218✔
47	_cleanup_free_ char *t = NULL;	183,218✔
48	int r;	183,218✔
49
50	assert(dir_fd >= 0 \|\| dir_fd == AT_FDCWD);	183,218✔
51	assert(path);	183,218✔
52
53	r = tempfn_random(path, NULL, &t);	183,218✔
54	if (r < 0)	183,218✔
55	return r;
56
57	r = fopen_temporary_internal(dir_fd, t, ret_file);	183,218✔
58	if (r < 0)	183,218✔
59	return r;
60
61	if (ret_path)	183,217✔
62	*ret_path = TAKE_PTR(t);	183,217✔
63
64	return 0;
65	}
66
67	int fopen_temporary_child_at(int dir_fd, const char path, FILE ret_file, char *ret_path) {	4✔
68	_cleanup_free_ char *t = NULL;	4✔
69	int r;	4✔
70
71	assert(dir_fd >= 0 \|\| dir_fd == AT_FDCWD);	4✔
72
73	if (!path) {	4✔
74	r = tmp_dir(&path);	1✔
75	if (r < 0)	1✔
76	return r;
77	}
78
79	r = tempfn_random_child(path, NULL, &t);	4✔
80	if (r < 0)	4✔
81	return r;
82
83	r = fopen_temporary_internal(dir_fd, t, ret_file);	4✔
84	if (r < 0)	4✔
85	return r;
86
87	if (ret_path)	4✔
88	*ret_path = TAKE_PTR(t);	4✔
89
90	return 0;
91	}
92
93	/* This is much like mkostemp() but is subject to umask(). */
94	int mkostemp_safe(char *pattern) {	248✔
95	assert(pattern);	248✔
96	BLOCK_WITH_UMASK(0077);	248✔
97	return RET_NERRNO(mkostemp(pattern, O_CLOEXEC));	248✔
98	}
99
100	int fmkostemp_safe(char pattern, const char mode, FILE **ret_f) {	40✔
101	_cleanup_close_ int fd = -EBADF;	40✔
102	FILE *f;	40✔
103
104	fd = mkostemp_safe(pattern);	40✔
105	if (fd < 0)	40✔
106	return fd;
107
108	f = take_fdopen(&fd, mode);	40✔
109	if (!f)	40✔
110	return -errno;	×
111
112	*ret_f = f;	40✔
113	return 0;	40✔
114	}
115
116	void unlink_tempfilep(char (*p)[]) {	120✔
117	assert(p);	120✔
118
119	/* If the file is created with mkstemp(), it will (almost always) change the suffix.
120	* Treat this as a sign that the file was successfully created. We ignore both the rare case
121	* where the original suffix is used and unlink failures. */
122
123	if (!endswith(*p, ".XXXXXX"))	120✔
124	(void) unlink(*p);	118✔
125	}	120✔
126
127	static int tempfn_build(const char p, const char pre, const char post, bool child, char *ret) {	329,929✔
128	_cleanup_free_ char d = NULL, fn = NULL, nf = NULL, result = NULL;	329,929✔
129	size_t len_pre, len_post, len_add;	329,929✔
130	int r;	329,929✔
131
132	assert(p);	329,929✔
133	assert(ret);	329,929✔
134
135	/*
136	* Turns this:
137	* /foo/bar/waldo
138	*
139	* Into this :
140	* /foo/bar/waldo/.#<pre><post> (child == true)
141	* /foo/bar/.#<pre>waldo<post> (child == false)
142	*/
143
144	if (pre && strchr(pre, '/'))	329,929✔
145	return -EINVAL;
146
147	if (post && strchr(post, '/'))	329,926✔
148	return -EINVAL;
149
150	len_pre = strlen_ptr(pre);	329,926✔
151	len_post = strlen_ptr(post);	329,926✔
152	/* NAME_MAX is counted without the trailing NUL byte. */
153	if (len_pre > NAME_MAX - STRLEN(".#") \|\|	329,926✔
154	len_post > NAME_MAX - STRLEN(".#") - len_pre)	329,926✔
155	return -EINVAL;
156
157	len_add = len_pre + len_post + STRLEN(".#");	329,926✔
158
159	if (child) {	329,926✔
160	d = strdup(p);	659✔
161	if (!d)	659✔
162	return -ENOMEM;
163	} else {
164	r = path_split_prefix_filename(p, &d, &fn);	329,267✔
165	if (r < 0)	329,267✔
166	return r;
167
168	/* Truncate the filename if it would become too long after mangling. */
169	strshorten(fn, NAME_MAX - len_add);	329,259✔
170	}
171
172	nf = strjoin(".#", strempty(pre), strempty(fn), strempty(post));	659,730✔
173	if (!nf)	329,918✔
174	return -ENOMEM;
175
176	if (d) {	329,918✔
177	if (!path_extend(&d, nf))	324,449✔
178	return -ENOMEM;
179
180	result = path_simplify(TAKE_PTR(d));	324,449✔
181	} else
182	result = TAKE_PTR(nf);
183
184	if (!path_is_valid(result)) /* New path is not valid? (Maybe because too long?) Refuse. */	329,918✔
185	return -EINVAL;
186
187	*ret = TAKE_PTR(result);	329,915✔
188	return 0;	329,915✔
189	}
190
191	int tempfn_xxxxxx(const char p, const char extra, char **ret) {	27✔
192	/*
193	* Turns this:
194	* /foo/bar/waldo
195	*
196	* Into this:
197	* /foo/bar/.#<extra>waldoXXXXXX
198	*/
199
200	return tempfn_build(p, extra, "XXXXXX", /* child= */ false, ret);	27✔
201	}
202
203	int tempfn_random(const char p, const char extra, char **ret) {	329,242✔
204	_cleanup_free_ char *s = NULL;	329,242✔
205
206	assert(p);	329,242✔
207	assert(ret);	329,242✔
208
209	/*
210	* Turns this:
211	* /foo/bar/waldo
212	*
213	* Into this:
214	* /foo/bar/.#<extra>waldobaa2a261115984a9
215	*/
216
217	if (asprintf(&s, "%016" PRIx64, random_u64()) < 0)	329,242✔
218	return -ENOMEM;
219
220	return tempfn_build(p, extra, s, /* child= */ false, ret);	329,242✔
221	}
222
223	int tempfn_random_child(const char p, const char extra, char **ret) {	660✔
224	_cleanup_free_ char *s = NULL;	660✔
225	int r;	660✔
226
227	assert(ret);	660✔
228
229	/* Turns this:
230	* /foo/bar/waldo
231	* Into this:
232	* /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
233	*/
234
235	if (!p) {	660✔
236	r = tmp_dir(&p);	15✔
237	if (r < 0)	15✔
238	return r;
239	}
240
241	if (asprintf(&s, "%016" PRIx64, random_u64()) < 0)	660✔
242	return -ENOMEM;
243
244	return tempfn_build(p, extra, s, /* child= */ true, ret);	660✔
245	}
246
247	int open_tmpfile_unlinkable(const char *directory, int flags) {	6,371✔
248	int r;	6,371✔
249
250	if (!directory) {	6,371✔
251	r = tmp_dir(&directory);	7✔
252	if (r < 0)	7✔
253	return r;	6,371✔
254	} else if (isempty(directory))	12,735✔
255	return -EINVAL;
256
257	/* Returns an unlinked temporary file that cannot be linked into the file system anymore */
258
259	/* Try O_TMPFILE first, if it is supported */
260	int fd = open(directory, flags\|O_TMPFILE\|O_EXCL, S_IRUSR\|S_IWUSR);	6,371✔
261	if (fd >= 0)	6,371✔
262	return fd;
263
264	/* Fall back to unguessable name + unlinking */
265	_cleanup_free_ char *p = path_join(directory, "/systemd-tmp-XXXXXX");	×
266	if (!p)	×
267	return -ENOMEM;
268
269	fd = mkostemp_safe(p);	×
270	if (fd < 0)	×
271	return fd;
272
273	(void) unlink(p);	×
274
275	return fd;	×
276	}
277
278	int open_tmpfile_linkable_at(int dir_fd, const char target, int flags, char *ret_path) {	22,046✔
279	int r;	22,046✔
280
281	assert(target);	22,046✔
282	assert(ret_path);	22,046✔
283
284	/* Don't allow O_EXCL, as that has a special meaning for O_TMPFILE */
285	assert((flags & O_EXCL) == 0);	22,046✔
286
287	/* Creates a temporary file, that shall be renamed to "target" later. If possible, this uses O_TMPFILE – in
288	* which case "ret_path" will be returned as NULL. If not possible the temporary path name used is returned in
289	* "ret_path". Use link_tmpfile() below to rename the result after writing the file in full. */
290
291	int fd = open_parent_at(dir_fd, target, O_TMPFILE\|flags, 0640);	22,046✔
292	if (fd >= 0) {	22,046✔
293	*ret_path = NULL;	21,954✔
294	return fd;	22,046✔
295	}
296
297	log_debug_errno(fd, "Failed to use O_TMPFILE for %s: %m", target);	92✔
298
299	_cleanup_free_ char *tmp = NULL;	92✔
300	r = tempfn_random(target, NULL, &tmp);	92✔
301	if (r < 0)	92✔
302	return r;
303
304	fd = openat(dir_fd, tmp, O_CREAT\|O_EXCL\|O_NOFOLLOW\|O_NOCTTY\|flags, 0640);	92✔
305	if (fd < 0)	92✔
306	return -errno;	33✔
307
308	*ret_path = TAKE_PTR(tmp);	59✔
309
310	return fd;	59✔
311	}
312
313	int fopen_tmpfile_linkable_at(int dir_fd, const char target, int flags, char ret_path, FILE *ret_file) {	5,472✔
314	_cleanup_free_ char *path = NULL;	5,472✔
315	_cleanup_fclose_ FILE *f = NULL;	5,472✔
316	_cleanup_close_ int fd = -EBADF;	5,472✔
317
318	assert(target);	5,472✔
319	assert(ret_file);	5,472✔
320	assert(ret_path);	5,472✔
321
322	fd = open_tmpfile_linkable_at(dir_fd, target, flags, &path);	5,472✔
323	if (fd < 0)	5,472✔
324	return fd;
325
326	f = take_fdopen(&fd, "w");	5,472✔
327	if (!f)	5,472✔
328	return -ENOMEM;
329
330	*ret_path = TAKE_PTR(path);	5,472✔
331	*ret_file = TAKE_PTR(f);	5,472✔
332	return 0;	5,472✔
333	}
334
335	int link_tmpfile_at(int fd, int dir_fd, const char path, const char target, LinkTmpfileFlags flags) {	21,857✔
336	int r;	21,857✔
337
338	assert(fd >= 0);	21,857✔
339	assert(dir_fd >= 0 \|\| dir_fd == AT_FDCWD);	21,857✔
340	assert(target);	21,857✔
341
342	/* Moves a temporary file created with open_tmpfile() above into its final place. If "path" is NULL
343	* an fd created with O_TMPFILE is assumed, and linkat() is used. Otherwise it is assumed O_TMPFILE
344	* is not supported on the directory, and renameat2() is used instead. */
345
346	if (FLAGS_SET(flags, LINK_TMPFILE_SYNC) && fsync(fd) < 0)	21,857✔
347	return -errno;	×
348
349	if (path) {	21,857✔
350	if (FLAGS_SET(flags, LINK_TMPFILE_REPLACE))	59✔
351	r = RET_NERRNO(renameat(dir_fd, path, dir_fd, target));	38✔
352	else
353	r = rename_noreplace(dir_fd, path, dir_fd, target);	21✔
354	} else {
355	if (FLAGS_SET(flags, LINK_TMPFILE_REPLACE))	21,798✔
356	r = linkat_replace(fd, /* oldpath= */ NULL, dir_fd, target);	20,893✔
357	else
358	r = link_fd(fd, dir_fd, target);	905✔
359	}
360	if (r < 0)	21,819✔
361	return r;
362
363	if (FLAGS_SET(flags, LINK_TMPFILE_SYNC)) {	21,854✔
364	r = fsync_full(fd);	1,460✔
365	if (r < 0)	1,460✔
366	return r;	×
367	}
368
369	return 0;
370	}
371
372	int flink_tmpfile_at(FILE f, int dir_fd, const char path, const char *target, LinkTmpfileFlags flags) {	5,472✔
373	int fd, r;	5,472✔
374
375	assert(f);	5,472✔
376	assert(target);	5,472✔
377
378	fd = fileno(f);	5,472✔
379	if (fd < 0) /* Not all FILE* objects encapsulate fds */	5,472✔
380	return -EBADF;
381
382	r = fflush_and_check(f);	5,472✔
383	if (r < 0)	5,472✔
384	return r;
385
386	return link_tmpfile_at(fd, dir_fd, path, target, flags);	5,472✔
387	}
388
389	int mkdtemp_malloc(const char template, char *ret) {	4,009✔
390	_cleanup_free_ char *p = NULL;	8,018✔
391	int r;	4,009✔
392
393	assert(ret);	4,009✔
394
395	if (template)	4,009✔
396	p = strdup(template);	3,880✔
397	else {
398	const char *tmp;	129✔
399
400	r = tmp_dir(&tmp);	129✔
401	if (r < 0)	129✔
402	return r;	×
403
404	p = path_join(tmp, "XXXXXX");	129✔
405	}
406	if (!p)	4,009✔
407	return -ENOMEM;
408
409	if (!mkdtemp(p))	4,009✔
410	return -errno;	×
411
412	*ret = TAKE_PTR(p);	4,009✔
413	return 0;	4,009✔
414	}
415
416	int mkdtemp_open(const char template, int flags, char *ret) {	48✔
417	_cleanup_free_ char *p = NULL;	48✔
418	int fd, r;	48✔
419
420	r = mkdtemp_malloc(template, &p);	48✔
421	if (r < 0)	48✔
422	return r;
423
424	fd = RET_NERRNO(open(p, O_DIRECTORY\|O_CLOEXEC\|flags));	48✔
425	if (fd < 0) {	×
426	(void) rmdir(p);	×
427	return fd;	×
428	}
429
430	if (ret)	48✔
431	*ret = TAKE_PTR(p);	48✔
432
433	return fd;
434	}
435
436	void cleanup_tmpfile_data_done(struct cleanup_tmpfile_data *d) {	3,007✔
437	assert(d);	3,007✔
438
439	if (!d->dir_fd \|\|	3,007✔
440	*d->dir_fd < 0 \|\|	3,007✔
441	!d->filename \|\|	509✔
442	!*d->filename)	509✔
443	return;	3,007✔
444
445	PROTECT_ERRNO;	×
446
447	(void) unlinkat(d->dir_fd, d->filename, /* flags= */ 0);	×
448	d->dir_fd = NULL;	×
449	d->filename = NULL;	×
450	}

systemd / systemd / 21846209963

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