KRB5_LOCKMODE_DONTBLOCK
KRB5_LOCKMODE_SHARED|KRB5_LOCKMODE_DONTBLOCK);
KRB5_LOCKMODE_EXCLUSIVE|KRB5_LOCKMODE_DONTBLOCK);
switch (mode & ~KRB5_LOCKMODE_DONTBLOCK) {
if (mode & KRB5_LOCKMODE_DONTBLOCK) {
krb5_mode|KRB5_LOCKMODE_DONTBLOCK)) == 0) {
krb5_lock_mode = mode | KRB5_LOCKMODE_DONTBLOCK;