March 23, 2002
acl_set_qualifier - set the qualifier of an ACL entry
Linux Access Control Lists library (libacl, -lacl).
.In sys/acl.h int
acl_set_qualifier acl_entry_t entry_d const void *qualifier_p
acl_set_qualifierfunction sets the qualifier of the ACL entry indicated by the argument entry_d to the value referred to by the argument qualifier_p. If the value of the tag type in the ACL entry referred to by entry_d is ACL_USER, then the value referred to by qualifier_p shall be of type uid_t. If the value of the tag type in the ACL entry referred to by entry_d is ACL_GROUP, then the value referred to by qualifier_p shall be of type gid_t. If the value of the tag type in the ACL entry referred to by entry_d is a tag type for which a qualifier is not supported,
acl_set_qualifierreturns an error.
Any ACL entry descriptors that refer to the entry referred to by entry_d continue to refer to that entry. This function may cause memory to be allocated. The caller should free any releasable memory, when the ACL is no longer required, by calling
acl_freewith a pointer to the ACL as argument.
.Rv -std acl_set_qualifier
If any of the following conditions occur, the
acl_set_qualifierfunction returns -1 and sets errno to the corresponding value:
|The argument entry_d is not a valid descriptor for an ACL entry.
The value of the tag type in the ACL entry referenced by the argument entry_d is neither ACL_USER nor ACL_GROUP.
The value pointed to by the argument qualifier_p is not valid.
IEEE Std 1003.1e draft 17 (\(lqPOSIX.1e\(rq, abandoned)