acl_get_perm (3) Linux Manual Page
NAME
acl_get_perm – test for a permission in an ACL permission set
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
In sys/types.h In acl/libacl.h Ft int Fn acl_get_perm acl_permset_t permset_d acl_perm_t perm
DESCRIPTION
The Fn 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 Fn 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 Fn acl_get_perm function returns -1 and sets errno to the corresponding value:
BqEr 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”, abandoned).
SEE ALSO
acl_add_perm3, acl_clear_perms3, acl_delete_perm3, acl_get_permset3, acl_set_permset3, acl(5)
AUTHOR
Written by An Andreas Gruenbacher Aq a.gruenbacher [at] bestbits.at .