setpassent
int setpassent(int);
static int (*_pwcache_setpassent)(int) = setpassent;
pwcache_userdb(setpassent, test_getpwnam, getpwuid));
setpassent(1);
setpassent(1);
setpassent(1);
setpassent(1); /* Keep passwd file pointers open */
setpassent(0); /* Close passwd file pointers */
setpassent(1);