Get the qualifier from an ACL entry
#include <sys/acl.h> void *acl_get_qualifier( acl_entry_t entry_d );
- The entry that you want to get the qualifier from.
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The acl_get_qualifier() function gets the qualifier from an ACL entry and returns a pointer to a copy of it. The data type of the pointer depends on the type of the entry:
|Entry type||Pointer type|
|Other types||(void *)NULL, and the function fails|
The uid_t and gid_t data types are defined in <sys/types.h>.
When you're finished with the copy of the qualifier, use acl_free() to release it.
A pointer to a copy of the qualifier, or NULL if an error occurred ( errno is set).
- The entry_d argument isn't a valid descriptor for an ACL entry, or the value of the tag type in the entry isn't ACL_USER or ACL_GROUP.
- There wasn't enough memory to create a copy of the qualifier.
This function is based on the withdrawn POSIX draft P1003.1e.
Last modified: 2013-12-23