ACL_DELETE_PERM(3)         Library Functions Manual         ACL_DELETE_PERM(3)

NAME
     acl_delete_perm - delete a permission from an ACL permission set

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

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

     int
     acl_delete_perm(acl_permset_t permset_d, acl_perm_t perm);

DESCRIPTION
     The acl_delete_perm() function deletes the permission contained in the
     argument perm (one of ACL_READ, ACL_WRITE, ACL_EXECUTE) from the
     permission set referred to by the argument permset_d.  An attempt to
     delete a permission that is not contained in the permission set is not
     considered an error.

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

RETURN VALUE
     The acl_delete_perm() function returns the value 0 if successful;
     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_delete_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 does not contain a valid acl_perm_t
                        value.

STANDARDS
     IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned)

SEE ALSO
     acl_add_perm(3), acl_clear_perms(3), acl_get_perm(3), acl_get_permset(3),
     acl_set_permset(3), acl(5)

AUTHOR
     Derived from the FreeBSD manual pages written by Robert N M Watson
     <rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher
     <andreas.gruenbacher@gmail.com>.

Linux ACL                       March 23, 2002                       Linux ACL