1ACL_GET_PERM(3)          BSD Library Functions Manual          ACL_GET_PERM(3)
2

NAME

4     acl_get_perm — test for a permission in an ACL permission set
5

LIBRARY

7     Linux Access Control Lists library (libacl, -lacl).
8

SYNOPSIS

10     #include <sys/types.h>
11     #include <acl/libacl.h>
12
13     int
14     acl_get_perm(acl_permset_t permset_d, acl_perm_t perm);
15

DESCRIPTION

17     The acl_get_perm() function tests if the permission specified by the ar‐
18     gument perm (one of ACL_READ, ACL_WRITE, ACL_EXECUTE) is contained in the
19     ACL permission set pointed to by the argument permset_d.
20
21     Any existing descriptors that refer to permset_d continue to refer to
22     that permission set.
23

RETURN VALUE

25     If successful, the acl_get_perm() function returns 1 if the permission
26     specified by perm is contained in the ACL permission set permset_d, and 0
27     if the permission is not contained in the permission set. Otherwise, the
28     value -1 is returned and the global variable errno is set to indicate the
29     error.
30

ERRORS

32     If any of the following conditions occur, the acl_get_perm() function re‐
33     turns -1 and sets errno to the corresponding value:
34
35     [EINVAL]           The argument permset_d is not a valid descriptor for a
36                        permission set within an ACL entry.
37
38                        The argument perm is not a valid acl_perm_t value.
39

STANDARDS

41     This is a non-portable, Linux specific extension to the ACL manipulation
42     functions defined in IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned).
43

SEE ALSO

45     acl_add_perm(3), acl_clear_perms(3), acl_delete_perm(3),
46     acl_get_permset(3), acl_set_permset(3), acl(5)
47

AUTHOR

49     Written by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>.
50
51Linux ACL                       March 23, 2002                       Linux ACL
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