NAME

acl_get_qualifier − Retrieves the tag qualifier (ID) for an ACL entry

LIBRARY

Security Library (libpacl.a)

SYNOPSIS

#include <sys/acl.h> void ∗ acl_get_qualifier(
acl_entry_t entry_d);

PARAMETERS

entry_dDesignates the working storage internal representation ACL entry to retrieve the tag qualifier from. 

DESCRIPTION

NOTE:  This function is based on Draft 13 of the POSIX P1003.6 standard. 

The acl_get_qualifier() function retrieves ACL entry tag qualifier, which is the user or group ID associated with the entry. If the entry tag type is ACL_USER, a ∗uid_t is returned.  If the tag type is ACL_GROUP, a ∗gid_t is returned.  For all other tag types, NULL is returned. 

RETURN VALUES

Upon successful completion, the acl_get_qualifier() function returns a pointer to the ACL entry tag qualifier. Otherwise, a value of NULL is returned and errno is set to indicate the error. 

ERRORS

If any of the following conditions occur, the acl_get_qualifier() function sets errno to the corresponding value:

[EINVAL]Argument entry_d does not refer to a valid ACL entry.  The value of the tag type in ACL entry referred to by entry_d is ACL_USER_OBJ, ACL_GROUP_OBJ, or ACL_OTHER_OBJ. 

RELATED INFORMATION

acl_create_entry(3), acl_free_qualifier(3), acl_get_entry(3), acl_get_tag_type(3), acl_set_qualifier(3), acl_set_tag_type(3)

Security