ref: a8079f496c4c0438c761e1afdf2e05b7617b75c5
dir: /sys/src/libauth/login.c/
#include <u.h>
#include <libc.h>
#include <auth.h>
int
login(char *user, char *password, char *namespace)
{
int rv;
AuthInfo *ai;
if((ai = auth_userpasswd(user, password)) == nil)
return -1;
rv = auth_chuid(ai, namespace);
auth_freeAI(ai);
return rv;
}