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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
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ACL_EQUIV_MODE(3) Library Functions Manual ACL_EQUIV_MODE(3)
acl_equiv_mode — check for an equivalent ACL
Linux Access Control Lists library (libacl, -lacl).
<sys/types.h> <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
argument 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 permission bits, and is considered equivalent
with the traditional file permission 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 <[email protected]>.
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 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-04-25.) If you discover any rendering
problems in this HTML version 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
[email protected]
Linux ACL March 23, 2002 ACL_EQUIV_MODE(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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