LCOV - code coverage report
Current view: top level - basic - stat-util.h (source / functions) Hit Total Coverage
Test: systemd_full.info Lines: 2 2 100.0 %
Date: 2019-08-23 13:36:53 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: LGPL-2.1+ */
       2                 :            : #pragma once
       3                 :            : 
       4                 :            : #include <fcntl.h>
       5                 :            : #include <stdbool.h>
       6                 :            : #include <stddef.h>
       7                 :            : #include <sys/stat.h>
       8                 :            : #include <sys/statfs.h>
       9                 :            : #include <sys/types.h>
      10                 :            : #include <sys/vfs.h>
      11                 :            : 
      12                 :            : #include "macro.h"
      13                 :            : 
      14                 :            : int is_symlink(const char *path);
      15                 :            : int is_dir(const char *path, bool follow);
      16                 :            : int is_dir_fd(int fd);
      17                 :            : int is_device_node(const char *path);
      18                 :            : 
      19                 :            : int dir_is_empty_at(int dir_fd, const char *path);
      20                 :         80 : static inline int dir_is_empty(const char *path) {
      21                 :         80 :         return dir_is_empty_at(AT_FDCWD, path);
      22                 :            : }
      23                 :            : 
      24                 :            : static inline int dir_is_populated(const char *path) {
      25                 :            :         int r;
      26                 :            :         r = dir_is_empty(path);
      27                 :            :         if (r < 0)
      28                 :            :                 return r;
      29                 :            :         return !r;
      30                 :            : }
      31                 :            : 
      32                 :            : bool null_or_empty(struct stat *st) _pure_;
      33                 :            : int null_or_empty_path(const char *fn);
      34                 :            : int null_or_empty_fd(int fd);
      35                 :            : 
      36                 :            : int path_is_read_only_fs(const char *path);
      37                 :            : 
      38                 :            : int files_same(const char *filea, const char *fileb, int flags);
      39                 :            : 
      40                 :            : /* The .f_type field of struct statfs is really weird defined on
      41                 :            :  * different archs. Let's give its type a name. */
      42                 :            : typedef typeof(((struct statfs*)NULL)->f_type) statfs_f_type_t;
      43                 :            : 
      44                 :            : bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) _pure_;
      45                 :            : int fd_is_fs_type(int fd, statfs_f_type_t magic_value);
      46                 :            : int path_is_fs_type(const char *path, statfs_f_type_t magic_value);
      47                 :            : 
      48                 :            : bool is_temporary_fs(const struct statfs *s) _pure_;
      49                 :            : bool is_network_fs(const struct statfs *s) _pure_;
      50                 :            : 
      51                 :            : int fd_is_temporary_fs(int fd);
      52                 :            : int fd_is_network_fs(int fd);
      53                 :            : 
      54                 :            : int path_is_temporary_fs(const char *path);
      55                 :            : 
      56                 :            : /* Because statfs.t_type can be int on some architectures, we have to cast
      57                 :            :  * the const magic to the type, otherwise the compiler warns about
      58                 :            :  * signed/unsigned comparison, because the magic can be 32 bit unsigned.
      59                 :            :  */
      60                 :            : #define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b)
      61                 :            : 
      62                 :            : int stat_verify_regular(const struct stat *st);
      63                 :            : int fd_verify_regular(int fd);
      64                 :            : 
      65                 :            : int stat_verify_directory(const struct stat *st);
      66                 :            : int fd_verify_directory(int fd);
      67                 :            : 
      68                 :            : /* glibc and the Linux kernel have different ideas about the major/minor size. These calls will check whether the
      69                 :            :  * specified major is valid by the Linux kernel's standards, not by glibc's. Linux has 20bits of minor, and 12 bits of
      70                 :            :  * major space. See MINORBITS in linux/kdev_t.h in the kernel sources. (If you wonder why we define _y here, instead of
      71                 :            :  * comparing directly >= 0: it's to trick out -Wtype-limits, which would otherwise complain if the type is unsigned, as
      72                 :            :  * such a test would be pointless in such a case.) */
      73                 :            : 
      74                 :            : #define DEVICE_MAJOR_VALID(x)                                           \
      75                 :            :         ({                                                              \
      76                 :            :                 typeof(x) _x = (x), _y = 0;                             \
      77                 :            :                 _x >= _y && _x < (UINT32_C(1) << 12);                   \
      78                 :            :                                                                         \
      79                 :            :         })
      80                 :            : 
      81                 :            : #define DEVICE_MINOR_VALID(x)                                           \
      82                 :            :         ({                                                              \
      83                 :            :                 typeof(x) _x = (x), _y = 0;                             \
      84                 :            :                 _x >= _y && _x < (UINT32_C(1) << 20);                   \
      85                 :            :         })
      86                 :            : 
      87                 :            : int device_path_make_major_minor(mode_t mode, dev_t devno, char **ret);
      88                 :            : int device_path_make_canonical(mode_t mode, dev_t devno, char **ret);
      89                 :            : int device_path_parse_major_minor(const char *path, mode_t *ret_mode, dev_t *ret_devno);

Generated by: LCOV version 1.14