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

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 per- mission 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 corre- sponding 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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