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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
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ACL_EQUIV_MODE(3) BSD Library Functions Manual ACL_EQUIV_MODE(3)
acl_equiv_mode — check for an equivalent ACL
Linux Access Control Lists library (libacl, -lacl).
#include <sys/types.h>
#include <acl/libacl.h>
int
acl_equiv_mode(acl_t acl, mode_t *mode_p);
The acl_equiv_mode() function checks if the ACL pointed to by the argu‐
ment acl contains only the required ACL entries of tag types
ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER, and contains no permissions
other that ACL_READ, ACL_WRITE or ACL_EXECUTE. If the ACL has this
form, it can can be fully represented with the traditional file permis‐
sion bits, and is considered equivalent with the traditional file per‐
mission bits.
If acl is an equivalent ACL and the pointer mode_p is not NULL, the
value pointed to by mode_p is set to the value that defines the same
owner, group and other permissions as contained in the ACL.
On success, this function returns the value 0 if acl is an equivalent
ACL, and the value 1 if acl is not an equivalent ACL. On error, the
value -1 is returned, and errno is set appropriately.
If any of the following conditions occur, the acl_equiv_mode() function
returns the value -1 and sets errno to the corresponding value:
[EINVAL] The argument acl is not a valid pointer to an ACL.
This is a non-portable, Linux specific extension to the ACL
manipulation functions defined in IEEE Std 1003.1e draft 17
(“POSIX.1e”, abandoned).
acl_from_mode(3), acl(5)
Written by Andreas Gruenbacher <a.gruenbacher@bestbits.at>.
This page is part of the acl (manipulating access control lists)
project. Information about the project can be found at
http://savannah.nongnu.org/projects/acl. If you have a bug report for
this manual page, see ⟨http://savannah.nongnu.org/bugs/?group=acl⟩.
This page was obtained from the project's upstream Git repository
⟨git://git.savannah.nongnu.org/acl.git⟩ on 2018-02-02. (At that time,
the date of the most recent commit that was found in the repository was
2018-01-21.) If you discover any rendering problems in this HTML ver‐
sion of the page, or you believe there is a better or more up-to-date
source for the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original manual
page), send a mail to man-pages@man7.org
Linux ACL March 23, 2002 Linux ACL
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