table of contents
ACL_CMP(3) | Library Functions Manual | ACL_CMP(3) |
NAME¶
acl_cmp
— compare
two ACLs
LIBRARY¶
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS¶
#include
<sys/types.h>
#include <acl/libacl.h>
int
acl_cmp
(acl_t
acl1, acl_t
acl2);
DESCRIPTION¶
The
acl_cmp
()
function compares the ACLs pointed to by the arguments
acl1 and acl2 for equality. The
two ACLs are considered equal if for each entry in
acl1 there is an entry in acl2
with matching tag type, qualifier, and permissions, and vice versa.
RETURN VALUE¶
If successful, the acl_cmp
() function
returns 0
if the two ACLs acl1
and acl2 are equal, and 1
if
they differ. 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_cmp
() function returns
-1
and sets errno to the
corresponding value:
- [
EINVAL
] - The argument acl1 is not a valid pointer to an ACL.
The argument acl2 is not a valid pointer to an ACL.
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¶
AUTHOR¶
Written by Andreas Gruenbacher ⟨a.gruenbacher@bestbits.at⟩.
March 23, 2002 | Linux ACL |