str2id
static int str2id(const char *, pid_t *, long, long);
ret = str2id(parg, (pid_t *)&id, 0,
if ((ret = str2id(parg, &id, 0, maxpid)) != 0) {
if ((ret = str2id(parg, &id, 0, maxpid)) != 0) {
if ((ret = str2id(parg, &id, 0, maxpid)) != 0) {
res = (gid_t)str2id(grnam);
uid = (uid_t)str2id(user);