acl_get_perm man page on Archlinux

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

     acl_get_perm — test for a permission in an ACL permission set

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

     #include <sys/types.h>
     #include <acl/libacl.h>

     acl_get_perm(acl_permset_t permset_d, acl_perm_t perm);

     The acl_get_perm() function tests if the permission specified by the
     argument perm is contained in the ACL permission set pointed to by the
     argument permset_d.

     Any existing descriptors that refer to permset_d continue to refer to
     that permission set.

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

     If any of the following conditions occur, the acl_get_perm() function
     returns -1 and sets errno to the corresponding value:

     [EINVAL]		The argument permset_d is not a valid descriptor for a
			permission set within an ACL entry.

			The argument perm is not a valid acl_perm_t value.

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

     acl_add_perm(3), acl_clear_perms(3), acl_delete_perm(3),
     acl_get_permset(3), acl_set_permset(3), acl(5)

     Written by Andreas Gruenbacher ⟨⟩.

Linux ACL			March 23, 2002			     Linux ACL

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