diff options
Diffstat (limited to 'src/basic/util.c')
-rw-r--r-- | src/basic/util.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/src/basic/util.c b/src/basic/util.c index dfebff7ec1..889ca288fc 100644 --- a/src/basic/util.c +++ b/src/basic/util.c @@ -1962,85 +1962,6 @@ int is_device_node(const char *path) { return !!(S_ISBLK(info.st_mode) || S_ISCHR(info.st_mode)); } -int chattr_fd(int fd, unsigned value, unsigned mask) { - unsigned old_attr, new_attr; - struct stat st; - - assert(fd >= 0); - - if (fstat(fd, &st) < 0) - return -errno; - - /* Explicitly check whether this is a regular file or - * directory. If it is anything else (such as a device node or - * fifo), then the ioctl will not hit the file systems but - * possibly drivers, where the ioctl might have different - * effects. Notably, DRM is using the same ioctl() number. */ - - if (!S_ISDIR(st.st_mode) && !S_ISREG(st.st_mode)) - return -ENOTTY; - - if (mask == 0) - return 0; - - if (ioctl(fd, FS_IOC_GETFLAGS, &old_attr) < 0) - return -errno; - - new_attr = (old_attr & ~mask) | (value & mask); - if (new_attr == old_attr) - return 0; - - if (ioctl(fd, FS_IOC_SETFLAGS, &new_attr) < 0) - return -errno; - - return 1; -} - -int chattr_path(const char *p, unsigned value, unsigned mask) { - _cleanup_close_ int fd = -1; - - assert(p); - - if (mask == 0) - return 0; - - fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); - if (fd < 0) - return -errno; - - return chattr_fd(fd, value, mask); -} - -int read_attr_fd(int fd, unsigned *ret) { - struct stat st; - - assert(fd >= 0); - - if (fstat(fd, &st) < 0) - return -errno; - - if (!S_ISDIR(st.st_mode) && !S_ISREG(st.st_mode)) - return -ENOTTY; - - if (ioctl(fd, FS_IOC_GETFLAGS, ret) < 0) - return -errno; - - return 0; -} - -int read_attr_path(const char *p, unsigned *ret) { - _cleanup_close_ int fd = -1; - - assert(p); - assert(ret); - - fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); - if (fd < 0) - return -errno; - - return read_attr_fd(fd, ret); -} - int syslog_parse_priority(const char **p, int *priority, bool with_facility) { int a = 0, b = 0, c = 0; int k; |