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RedHat 9 (Linux i386) - man page for acl_get_perm (redhat section 3)

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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 con-
     tained 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", abandoned).

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
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