21192089104

Committed 20 Jan 2026 11:35PM UTC coverage: 72.524% (-0.3%) from 72.818%

Build # 21192089104

Build Type

push

github

Committed by

yuwata

Commit Message

mkdir: reset mtime *after* fchown()

Follow-up for 34c3d5747

Also, drop pointless shortcut.

Run Details

1 of 2 new or added lines in 1 file covered. (50.0%)

2960 existing lines in 48 files now uncovered.

309808 of 427181 relevant lines covered (72.52%)

1236537.64 hits per line

Source File
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66.01

/src/shared/install-file.c

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

#include <sys/ioctl.h>
#include <sys/stat.h>
#include <unistd.h>

#include "btrfs-util.h"
#include "chattr-util.h"
#include "env-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "fs-util.h"
#include "install-file.h"
#include "log.h"
#include "rm-rf.h"
#include "sync-util.h"
#include "time-util.h"

static int fs_make_very_read_only(int fd) {
        struct stat st;
        int r;

        assert(fd >= 0);

        /* Tries to make the specified fd "comprehensively" read-only. Primary use case for this is OS images,
         * i.e. either loopback files or larger directory hierarchies. Depending on the inode type and
         * backing file system this means something different:
         *
         * 1. If the fd refers to a btrfs subvolume we'll mark it read-only as a whole
         * 2. If the fd refers to any other directory we'll set the FS_IMMUTABLE_FL flag on it
         * 3. If the fd refers to a regular file we'll drop the w bits.
         * 4. If the fd refers to a block device, use BLKROSET to set read-only state
         *
         * You might wonder why not drop the x bits for directories. That's because we want to guarantee that
         * everything "inside" the image remains largely the way it is, in case you mount it. And since the
         * mode of the root dir of the image is pretty visible we don't want to modify it. btrfs subvol flags
         * and the FS_IMMUTABLE_FL otoh are much less visible. Changing the mode of regular files should be
         * OK though, since after all this is supposed to be used for disk images, i.e. the fs in the disk
         * image doesn't make the mode of the loopback file it is stored in visible. */

        if (fstat(fd, &st) < 0)
                return -errno;

        switch (st.st_mode & S_IFMT) {

        case S_IFDIR:
                if (btrfs_might_be_subvol(&st)) {
                        r = btrfs_subvol_set_read_only_fd(fd, true);
                        if (r >= 0)
                                return 0;
                        if (!ERRNO_IS_NEG_IOCTL_NOT_SUPPORTED(r))
                                return r;
                }

                r = chattr_fd(fd, FS_IMMUTABLE_FL, FS_IMMUTABLE_FL);
                if (r < 0)
                        return r;

                break;

        case S_IFREG:
                if ((st.st_mode & 0222) != 0)
                        if (fchmod(fd, st.st_mode & 07555) < 0)
                                return -errno;

                break;

        case S_IFBLK: {
                int ro = 1;

                if (ioctl(fd, BLKROSET, &ro) < 0)
                        return -errno;

                break;
        }

        default:
                return -EBADFD;
        }

        return 0;
}

static int unlinkat_maybe_dir(int dirfd, const char *pathname) {

        /* Invokes unlinkat() for regular files first, and if this fails with EISDIR tries again with
         * AT_REMOVEDIR */

        if (unlinkat(dirfd, pathname, 0) < 0) {
                if (errno != EISDIR)
                        return -errno;

                if (unlinkat(dirfd, pathname, AT_REMOVEDIR) < 0)
                        return -errno;
        }

        return 0;
}

static bool need_opath(InstallFileFlags flags) {
        /* Returns true when we need to pin the source file via an O_PATH fd */
        return (flags & (INSTALL_FSYNC|INSTALL_FSYNC_FULL|INSTALL_SYNCFS|INSTALL_READ_ONLY)) != 0;
}

int install_file(int source_atfd, const char *source_name,
                 int target_atfd, const char *target_name,
                 InstallFileFlags flags) {

        _cleanup_close_ int rofd = -EBADF;
        int r;

        /* Moves a file or directory tree into place, with some bells and whistles:
         *
         * 1. Optionally syncs before/after to ensure file installation can be used as barrier
         * 2. Optionally marks the file/directory read-only using fs_make_very_read_only()
         * 3. Optionally operates in replacing or in non-replacing mode.
         * 4. If it replaces will remove the old tree if needed.
         */

        assert(source_atfd >= 0 || source_atfd == AT_FDCWD);
        assert(source_name);
        assert(target_atfd >= 0 || target_atfd == AT_FDCWD);

        /* If target_name is specified as NULL no renaming takes place. Instead it is assumed the file is
         * already in place, and only the syncing/read-only marking shall be applied. Note that with
         * target_name=NULL and flags=0 this call is a NOP */

        if (need_opath(flags)) {
                _cleanup_close_ int pfd = -EBADF;
                struct stat st;

                /* Open an O_PATH fd for the source if we need to sync things or mark things read only. */

                pfd = openat(source_atfd, source_name, O_PATH|O_CLOEXEC|O_NOFOLLOW);
                if (pfd < 0)
                        return -errno;

                if (fstat(pfd, &st) < 0)
                        return -errno;

                switch (st.st_mode & S_IFMT) {

                case S_IFREG: {
                        _cleanup_close_ int regfd = -EBADF;

                        regfd = fd_reopen(pfd, O_RDONLY|O_CLOEXEC);
                        if (regfd < 0) {
                                if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                        return log_debug_errno(regfd, "Failed to open referenced inode: %m");

                                log_debug_errno(regfd, "Failed to open referenced inode, ignoring: %m");
                        } else {
                                if ((flags & (INSTALL_FSYNC_FULL|INSTALL_SYNCFS)) != 0)
                                        /* If this is just a regular file (as opposed to a fully populated
                                         * directory) let's downgrade INSTALL_SYNCFS to INSTALL_FSYNC_FULL,
                                         * after all this is going to be a single inode we install */
                                        r = fsync_full(regfd);
                                else if (flags & INSTALL_FSYNC)
                                        r = RET_NERRNO(fsync(regfd));
                                else
                                        r = 0;
                                if (r < 0) {
                                        if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                                return log_debug_errno(r, "Failed to sync source inode: %m");

                                        log_debug_errno(r, "Failed to sync source inode, ignoring: %m");
                                }

                                if (flags & INSTALL_READ_ONLY)
                                        rofd = TAKE_FD(regfd);
                        }

                        break;
                }

                case S_IFDIR: {
                        _cleanup_close_ int dfd = -EBADF;

                        dfd = fd_reopen(pfd, O_RDONLY|O_DIRECTORY|O_CLOEXEC);
                        if (dfd < 0) {
                                if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                        return log_debug_errno(dfd, "Failed to open referenced inode: %m");

                                log_debug_errno(dfd, "Failed to open referenced inode, ignoring: %m");
                        } else {
                                if (flags & INSTALL_SYNCFS)
                                        r = RET_NERRNO(syncfs(dfd));
                                else if (flags & INSTALL_FSYNC_FULL)
                                        r = fsync_full(dfd);
                                else if (flags & INSTALL_FSYNC)
                                        r = RET_NERRNO(fsync(dfd));
                                else
                                        r = 0;
                                if (r < 0) {
                                        if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                                return log_debug_errno(r, "Failed to sync source inode: %m");

                                        log_debug_errno(r, "Failed to sync source inode, ignoring: %m");
                                }

                                if (flags & INSTALL_READ_ONLY)
                                        rofd = TAKE_FD(dfd);
                        }

                        break;
                }

                default:
                        /* Other inodes: char/block device inodes, fifos, symlinks, sockets don't need
                         * syncing themselves, as they only exist in the directory, and have no contents on
                         * disk */

                        if (target_name && (flags & (INSTALL_FSYNC_FULL|INSTALL_SYNCFS)) != 0) {
                                r = fsync_directory_of_file(pfd);
                                if (r < 0) {
                                        if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                                return log_debug_errno(r, "Failed to sync source inode: %m");

                                        log_debug_errno(r, "Failed to sync source inode, ignoring: %m");
                                }
                        }

                        break;
                }
        }

        if (target_name) {
                /* Rename the file */

                if (flags & INSTALL_REPLACE) {
                        /* First, try a simple renamat(), maybe that's enough */
                        if (renameat(source_atfd, source_name, target_atfd, target_name) < 0) {
                                _cleanup_close_ int dfd = -EBADF;

                                if (!IN_SET(errno, EEXIST, ENOTDIR, ENOTEMPTY, EISDIR, EBUSY))
                                        return -errno;

                                /* Hmm, the target apparently existed already. Let's try to use
                                 * RENAME_EXCHANGE. But let's first open the inode if it's a directory, so
                                 * that we can later remove its contents if it's a directory. Why do this
                                 * before the rename()? Mostly because if we have trouble opening the thing
                                 * we want to know before we start actually modifying the file system. */

                                dfd = openat(target_atfd, target_name, O_RDONLY|O_DIRECTORY|O_CLOEXEC, 0);
                                if (dfd < 0 && errno != ENOTDIR)
                                        return -errno;

                                if (renameat2(source_atfd, source_name, target_atfd, target_name, RENAME_EXCHANGE) < 0) {

                                        if (!ERRNO_IS_NOT_SUPPORTED(errno) && errno != EINVAL)
                                                return -errno;

                                        /* The exchange didn't work, let's remove the target first, and try again */

                                        if (dfd >= 0)
                                                (void) rm_rf_children(TAKE_FD(dfd), REMOVE_PHYSICAL|REMOVE_SUBVOLUME|REMOVE_CHMOD, NULL);

                                        r = unlinkat_maybe_dir(target_atfd, target_name);
                                        if (r < 0)
                                                return log_debug_errno(r, "Failed to remove target directory: %m");

                                        if (renameat(source_atfd, source_name, target_atfd, target_name) < 0)
                                                return -errno;
                                } else {
                                        /* The exchange worked, hence let's remove the source (i.e. the old target) */
                                        if (dfd >= 0)
                                                (void) rm_rf_children(TAKE_FD(dfd), REMOVE_PHYSICAL|REMOVE_SUBVOLUME|REMOVE_CHMOD, NULL);

                                        r = unlinkat_maybe_dir(source_atfd, source_name);
                                        if (r < 0)
                                                return log_debug_errno(r, "Failed to remove replaced target directory: %m");
                                }
                        }
                } else {
                        r = rename_noreplace(source_atfd, source_name, target_atfd, target_name);
                        if (r < 0)
                                return r;
                }
        }

        if (rofd >= 0) {
                r = fs_make_very_read_only(rofd);
                if (r < 0) {
                        if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                return log_debug_errno(r, "Failed to make inode read-only: %m");

                        log_debug_errno(r, "Failed to make inode read-only, ignoring: %m");
                }
        }

        if ((flags & (INSTALL_FSYNC_FULL|INSTALL_SYNCFS)) != 0) {
                if (target_name)
                        r = fsync_parent_at(target_atfd, target_name);
                else
                        r = fsync_parent_at(source_atfd, source_name);
                if (r < 0) {
                        if (!FLAGS_SET(flags, INSTALL_GRACEFUL))
                                return log_debug_errno(r, "Failed to sync inode: %m");

                        log_debug_errno(r, "Failed to sync inode, ignoring: %m");
                }
        }

        return 0;
}

usec_t parse_source_date_epoch(void) {
        static usec_t cache;
        static bool cached = false;
        int r;

        if (cached)
                return cache;

        uint64_t t;
        r = secure_getenv_uint64("SOURCE_DATE_EPOCH", &t);
        if (r >= 0) {
                if (MUL_SAFE(&cache, t, USEC_PER_SEC)) {
                        cached = true;
                        return cache;
                }

                r = -ERANGE;
        }
        if (r != -ENXIO)
                log_debug_errno(r, "Failed to parse $SOURCE_DATE_EPOCH, ignoring: %m");

        cached = true;
        return (cache = USEC_INFINITY);
}

usec_t source_date_epoch_or_now(void) {
        usec_t epoch;

        epoch = parse_source_date_epoch();
        if (epoch != USEC_INFINITY)
                return epoch;

        return now(CLOCK_REALTIME);
}

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <sys/ioctl.h>
4	#include <sys/stat.h>
5	#include <unistd.h>
6
7	#include "btrfs-util.h"
8	#include "chattr-util.h"
9	#include "env-util.h"
10	#include "errno-util.h"
11	#include "fd-util.h"
12	#include "fs-util.h"
13	#include "install-file.h"
14	#include "log.h"
15	#include "rm-rf.h"
16	#include "sync-util.h"
17	#include "time-util.h"
18
19	static int fs_make_very_read_only(int fd) {	2✔
20	struct stat st;	2✔
21	int r;	2✔
22
23	assert(fd >= 0);	2✔
24
25	/* Tries to make the specified fd "comprehensively" read-only. Primary use case for this is OS images,
26	* i.e. either loopback files or larger directory hierarchies. Depending on the inode type and
27	* backing file system this means something different:
28	*
29	* 1. If the fd refers to a btrfs subvolume we'll mark it read-only as a whole
30	* 2. If the fd refers to any other directory we'll set the FS_IMMUTABLE_FL flag on it
31	* 3. If the fd refers to a regular file we'll drop the w bits.
32	* 4. If the fd refers to a block device, use BLKROSET to set read-only state
33	*
34	* You might wonder why not drop the x bits for directories. That's because we want to guarantee that
35	* everything "inside" the image remains largely the way it is, in case you mount it. And since the
36	* mode of the root dir of the image is pretty visible we don't want to modify it. btrfs subvol flags
37	* and the FS_IMMUTABLE_FL otoh are much less visible. Changing the mode of regular files should be
38	* OK though, since after all this is supposed to be used for disk images, i.e. the fs in the disk
39	* image doesn't make the mode of the loopback file it is stored in visible. */
40
41	if (fstat(fd, &st) < 0)	2✔
UNCOV 42	return -errno;	×
43
44	switch (st.st_mode & S_IFMT) {	2✔
45
46	case S_IFDIR:	1✔
47	if (btrfs_might_be_subvol(&st)) {	1✔
UNCOV 48	r = btrfs_subvol_set_read_only_fd(fd, true);	×
49	if (r >= 0)	×
50	return 0;
UNCOV 51	if (!ERRNO_IS_NEG_IOCTL_NOT_SUPPORTED(r))	×
52	return r;
53	}
54
55	r = chattr_fd(fd, FS_IMMUTABLE_FL, FS_IMMUTABLE_FL);	1✔
56	if (r < 0)	1✔
57	return r;	1✔
58
59	break;
60
61	case S_IFREG:	1✔
62	if ((st.st_mode & 0222) != 0)	1✔
63	if (fchmod(fd, st.st_mode & 07555) < 0)	1✔
UNCOV 64	return -errno;	×
65
66	break;
67
UNCOV 68	case S_IFBLK: {	×
69	int ro = 1;	×
70
UNCOV 71	if (ioctl(fd, BLKROSET, &ro) < 0)	×
72	return -errno;	×
73
UNCOV 74	break;	×
75	}
76
77	default:
78	return -EBADFD;
79	}
80
81	return 0;
82	}
83
84	static int unlinkat_maybe_dir(int dirfd, const char *pathname) {	11✔
85
86	/* Invokes unlinkat() for regular files first, and if this fails with EISDIR tries again with
87	* AT_REMOVEDIR */
88
89	if (unlinkat(dirfd, pathname, 0) < 0) {	11✔
90	if (errno != EISDIR)	10✔
UNCOV 91	return -errno;	×
92
93	if (unlinkat(dirfd, pathname, AT_REMOVEDIR) < 0)	10✔
UNCOV 94	return -errno;	×
95	}
96
97	return 0;
98	}
99
100	static bool need_opath(InstallFileFlags flags) {	166✔
101	/* Returns true when we need to pin the source file via an O_PATH fd */
102	return (flags & (INSTALL_FSYNC\|INSTALL_FSYNC_FULL\|INSTALL_SYNCFS\|INSTALL_READ_ONLY)) != 0;	166✔
103	}
104
105	int install_file(int source_atfd, const char *source_name,	166✔
106	int target_atfd, const char *target_name,
107	InstallFileFlags flags) {
108
109	_cleanup_close_ int rofd = -EBADF;	166✔
110	int r;	166✔
111
112	/* Moves a file or directory tree into place, with some bells and whistles:
113	*
114	* 1. Optionally syncs before/after to ensure file installation can be used as barrier
115	* 2. Optionally marks the file/directory read-only using fs_make_very_read_only()
116	* 3. Optionally operates in replacing or in non-replacing mode.
117	* 4. If it replaces will remove the old tree if needed.
118	*/
119
120	assert(source_atfd >= 0 \|\| source_atfd == AT_FDCWD);	166✔
121	assert(source_name);	166✔
122	assert(target_atfd >= 0 \|\| target_atfd == AT_FDCWD);	166✔
123
124	/* If target_name is specified as NULL no renaming takes place. Instead it is assumed the file is
125	* already in place, and only the syncing/read-only marking shall be applied. Note that with
126	* target_name=NULL and flags=0 this call is a NOP */
127
128	if (need_opath(flags)) {	166✔
129	_cleanup_close_ int pfd = -EBADF;	134✔
130	struct stat st;	134✔
131
132	/* Open an O_PATH fd for the source if we need to sync things or mark things read only. */
133
134	pfd = openat(source_atfd, source_name, O_PATH\|O_CLOEXEC\|O_NOFOLLOW);	134✔
135	if (pfd < 0)	134✔
136	return -errno;	3✔
137
138	if (fstat(pfd, &st) < 0)	131✔
UNCOV 139	return -errno;	×
140
141	switch (st.st_mode & S_IFMT) {	131✔
142
143	case S_IFREG: {	77✔
UNCOV 144	_cleanup_close_ int regfd = -EBADF;	×
145
146	regfd = fd_reopen(pfd, O_RDONLY\|O_CLOEXEC);	77✔
147	if (regfd < 0) {	77✔
UNCOV 148	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
149	return log_debug_errno(regfd, "Failed to open referenced inode: %m");	×
150
UNCOV 151	log_debug_errno(regfd, "Failed to open referenced inode, ignoring: %m");	×
152	} else {
153	if ((flags & (INSTALL_FSYNC_FULL\|INSTALL_SYNCFS)) != 0)	77✔
154	/* If this is just a regular file (as opposed to a fully populated
155	* directory) let's downgrade INSTALL_SYNCFS to INSTALL_FSYNC_FULL,
156	* after all this is going to be a single inode we install */
157	r = fsync_full(regfd);	76✔
158	else if (flags & INSTALL_FSYNC)	1✔
159	r = RET_NERRNO(fsync(regfd));	1✔
160	else
161	r = 0;
162	if (r < 0) {	76✔
UNCOV 163	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
164	return log_debug_errno(r, "Failed to sync source inode: %m");	×
165
UNCOV 166	log_debug_errno(r, "Failed to sync source inode, ignoring: %m");	×
167	}
168
169	if (flags & INSTALL_READ_ONLY)	77✔
170	rofd = TAKE_FD(regfd);	1✔
171	}
172
173	break;	77✔
174	}
175
176	case S_IFDIR: {	50✔
177	_cleanup_close_ int dfd = -EBADF;	3✔
178
179	dfd = fd_reopen(pfd, O_RDONLY\|O_DIRECTORY\|O_CLOEXEC);	50✔
180	if (dfd < 0) {	50✔
UNCOV 181	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
182	return log_debug_errno(dfd, "Failed to open referenced inode: %m");	×
183
UNCOV 184	log_debug_errno(dfd, "Failed to open referenced inode, ignoring: %m");	×
185	} else {
186	if (flags & INSTALL_SYNCFS)	50✔
187	r = RET_NERRNO(syncfs(dfd));	48✔
188	else if (flags & INSTALL_FSYNC_FULL)	2✔
189	r = fsync_full(dfd);	2✔
UNCOV 190	else if (flags & INSTALL_FSYNC)	×
UNCOV 191	r = RET_NERRNO(fsync(dfd));	×
192	else
193	r = 0;
194	if (r < 0) {	2✔
UNCOV 195	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
196	return log_debug_errno(r, "Failed to sync source inode: %m");	×
197
UNCOV 198	log_debug_errno(r, "Failed to sync source inode, ignoring: %m");	×
199	}
200
201	if (flags & INSTALL_READ_ONLY)	50✔
202	rofd = TAKE_FD(dfd);	1✔
203	}
204
205	break;	50✔
206	}
207
208	default:	4✔
209	/* Other inodes: char/block device inodes, fifos, symlinks, sockets don't need
210	* syncing themselves, as they only exist in the directory, and have no contents on
211	* disk */
212
213	if (target_name && (flags & (INSTALL_FSYNC_FULL\|INSTALL_SYNCFS)) != 0) {	4✔
214	r = fsync_directory_of_file(pfd);	×
215	if (r < 0) {	×
UNCOV 216	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
UNCOV 217	return log_debug_errno(r, "Failed to sync source inode: %m");	×
218
219	log_debug_errno(r, "Failed to sync source inode, ignoring: %m");	131✔
220	}
221	}
222
223	break;
224	}
225	}
226
227	if (target_name) {	163✔
228	/* Rename the file */
229
230	if (flags & INSTALL_REPLACE) {	113✔
231	/* First, try a simple renamat(), maybe that's enough */
232	if (renameat(source_atfd, source_name, target_atfd, target_name) < 0) {	81✔
UNCOV 233	_cleanup_close_ int dfd = -EBADF;	×
234
235	if (!IN_SET(errno, EEXIST, ENOTDIR, ENOTEMPTY, EISDIR, EBUSY))	11✔
UNCOV 236	return -errno;	×
237
238	/* Hmm, the target apparently existed already. Let's try to use
239	* RENAME_EXCHANGE. But let's first open the inode if it's a directory, so
240	* that we can later remove its contents if it's a directory. Why do this
241	* before the rename()? Mostly because if we have trouble opening the thing
242	* we want to know before we start actually modifying the file system. */
243
244	dfd = openat(target_atfd, target_name, O_RDONLY\|O_DIRECTORY\|O_CLOEXEC, 0);	11✔
245	if (dfd < 0 && errno != ENOTDIR)	11✔
UNCOV 246	return -errno;	×
247
248	if (renameat2(source_atfd, source_name, target_atfd, target_name, RENAME_EXCHANGE) < 0) {	11✔
249
UNCOV 250	if (!ERRNO_IS_NOT_SUPPORTED(errno) && errno != EINVAL)	×
UNCOV 251	return -errno;	×
252
253	/* The exchange didn't work, let's remove the target first, and try again */
254
UNCOV 255	if (dfd >= 0)	×
256	(void) rm_rf_children(TAKE_FD(dfd), REMOVE_PHYSICAL\|REMOVE_SUBVOLUME\|REMOVE_CHMOD, NULL);	×
257
258	r = unlinkat_maybe_dir(target_atfd, target_name);	×
UNCOV 259	if (r < 0)	×
260	return log_debug_errno(r, "Failed to remove target directory: %m");	×
261
UNCOV 262	if (renameat(source_atfd, source_name, target_atfd, target_name) < 0)	×
UNCOV 263	return -errno;	×
264	} else {
265	/* The exchange worked, hence let's remove the source (i.e. the old target) */
266	if (dfd >= 0)	11✔
267	(void) rm_rf_children(TAKE_FD(dfd), REMOVE_PHYSICAL\|REMOVE_SUBVOLUME\|REMOVE_CHMOD, NULL);	10✔
268
269	r = unlinkat_maybe_dir(source_atfd, source_name);	11✔
270	if (r < 0)	11✔
UNCOV 271	return log_debug_errno(r, "Failed to remove replaced target directory: %m");	×
272	}
273	}
274	} else {
275	r = rename_noreplace(source_atfd, source_name, target_atfd, target_name);	32✔
276	if (r < 0)	32✔
277	return r;
278	}
279	}
280
281	if (rofd >= 0) {	160✔
282	r = fs_make_very_read_only(rofd);	2✔
283	if (r < 0) {	2✔
284	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	1✔
UNCOV 285	return log_debug_errno(r, "Failed to make inode read-only: %m");	×
286
287	log_debug_errno(r, "Failed to make inode read-only, ignoring: %m");	1✔
288	}
289	}
290
291	if ((flags & (INSTALL_FSYNC_FULL\|INSTALL_SYNCFS)) != 0) {	160✔
292	if (target_name)	127✔
293	r = fsync_parent_at(target_atfd, target_name);	77✔
294	else
295	r = fsync_parent_at(source_atfd, source_name);	50✔
296	if (r < 0) {	127✔
UNCOV 297	if (!FLAGS_SET(flags, INSTALL_GRACEFUL))	×
UNCOV 298	return log_debug_errno(r, "Failed to sync inode: %m");	×
299
300	log_debug_errno(r, "Failed to sync inode, ignoring: %m");	166✔
301	}
302	}
303
304	return 0;
305	}
306
307	usec_t parse_source_date_epoch(void) {	157✔
308	static usec_t cache;	157✔
309	static bool cached = false;	157✔
310	int r;	157✔
311
312	if (cached)	157✔
313	return cache;	21✔
314
315	uint64_t t;	136✔
316	r = secure_getenv_uint64("SOURCE_DATE_EPOCH", &t);	136✔
317	if (r >= 0) {	136✔
UNCOV 318	if (MUL_SAFE(&cache, t, USEC_PER_SEC)) {	×
UNCOV 319	cached = true;	×
UNCOV 320	return cache;	×
321	}
322
323	r = -ERANGE;
324	}
325	if (r != -ENXIO)	136✔
UNCOV 326	log_debug_errno(r, "Failed to parse $SOURCE_DATE_EPOCH, ignoring: %m");	×
327
328	cached = true;	136✔
329	return (cache = USEC_INFINITY);	136✔
330	}
331
332	usec_t source_date_epoch_or_now(void) {	88✔
333	usec_t epoch;	88✔
334
335	epoch = parse_source_date_epoch();	88✔
336	if (epoch != USEC_INFINITY)	88✔
337	return epoch;
338
339	return now(CLOCK_REALTIME);	88✔
340	}

systemd / systemd / 21192089104

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