aboutsummaryrefslogtreecommitdiffstats
path: root/src/libunixonacid/stat_at.c
blob: 57aa8dd076b5f56ed7c01e36db5fc3842de3dffb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* ISC license. */

#include <skalibs/sysdeps.h>

#ifdef SKALIBS_HASOPENAT

#ifndef _ATFILE_SOURCE
#define _ATFILE_SOURCE
#endif

#include <skalibs/bsdsnowflake.h>
#include <skalibs/nonposix.h>


#include <skalibs/stat.h>
#include <skalibs/fcntl.h>
#include <skalibs/unix-transactional.h>

int stat_at (int dirfd, char const *file, struct stat *st)
{
  return fstatat(dirfd, file, st, 0) ;
}

int lstat_at (int dirfd, char const *file, struct stat *st)
{
  return fstatat(dirfd, file, st, AT_SYMLINK_NOFOLLOW) ;
}

#else

#include <skalibs/bsdsnowflake.h>
#include <skalibs/nonposix.h>

#include <errno.h>

#include <skalibs/stat.h>
#include <skalibs/fcntl.h>
#include <skalibs/unix-transactional.h>
#include "at-internal.h"

struct stat_s
{
  char const *file ;
  struct stat *st ;
} ;

static int do_stat (void *p)
{
  struct stat_s *b = p ;
  return stat(b->file, b->st) ;
}

static int do_lstat (void *p)
{
  struct stat_s *b = p ;
  return lstat(b->file, b->st) ;
}

static void cancel_stat (int r, void *p)
{
  (void)r ;
  (void)p ;
}

int stat_at (int dirfd, char const *file, struct stat *st)
{
  struct stat_s args = { .file = file, .st = st } ;
  return emulate_at(dirfd, &do_stat, &cancel_stat, &args) ;
}

int lstat_at (int dirfd, char const *file, struct stat *st)
{
  struct stat_s args = { .file = file, .st = st } ;
  return emulate_at(dirfd, &do_lstat, &cancel_stat, &args) ;
}

#endif