#include <gfarm/gfarm.h>
| const char * gfs_acl_error( | acl_check_err_code ); | 
int acl_check_err_code;
If the acl_check_err_code is GFARM_ACL_MULTI_ERROR,
 "Multiple entries" is returned.
If the acl_check_err_code is GFARM_ACL_DUPLICATE_ERROR,
 "Duplicate entries" is returned.
If the acl_check_err_code is GFARM_ACL_MISS_ERROR,
 "Missing or wrong entry" is returned.
If the acl_check_err_code is GFARM_ACL_ENTRY_ERROR,
 "Invalid entry type" is returned.
 "No error" is returned  otherwise.