acl_get_perm(3) [redhat man page]

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

NAME

     acl_get_perm -- test for a permission in an ACL permission set

LIBRARY

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

SYNOPSIS

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

     int
     acl_get_perm(acl_permset_t permset_d, acl_perm_t perm);

DESCRIPTION

     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.

RETURN VALUE

     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 error.

ERRORS

     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.

STANDARDS

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

SEE ALSO

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

AUTHOR

     Written by Andreas Gruenbacher <a.gruenbacher@computer.org>.

Linux ACL							  March 23, 2002							 Linux ACL