man acl_valid (Fonctions bibliothèques) - acl_valid
NAME
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
DESCRIPTION
The acl_valid function checks the ACL referred to by the argument acl for validity.
The three required entries ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER must exist exactly once in the ACL. If the ACL contains any ACL_USER or ACL_GROUP entries, then an ACL_MASK entry is also required. The ACL may contain at most one ACL_MASK entry.
The user identifiers must be unique among all entries of type ACL_USER. The group identifiers must be unique among all entries of type ACL_GROUP.
RETURN VALUE
ERRORS
If any of the following conditions occur, the acl_valid function returns -1 and sets errno to the corresponding value:
- Bq EINVAL
- The argument acl is not a valid pointer to an ACL. The argument acl does not point to a valid ACL. One or more of the required ACL entries is not present in acl . The ACL contains entries that are not unique.
STANDARDS
IEEE Std 1003.1e draft 17 (POSIX.1e, abandoned)
SEE ALSO
AUTHOR
Derived from the FreeBSD manual pages written by Robert N M Watson Aq rwatson@FreeBSD.org , and adapted for Linux by Andreas Gruenbacher Aq a.gruenbacher@bestbits.at .