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/* ========================================================================
* Copyright 1988-2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* ========================================================================
*/
/*
* Program: BSI login
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing & Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 1 August 1988
* Last Edited: 30 August 2006
*/
/* Log in
* Accepts: login passwd struct
* argument count
* argument vector
* Returns: T if success, NIL otherwise
*/
long loginpw (struct passwd *pw,int argc,char *argv[])
{
long ret = NIL;
uid_t euid = geteuid ();
login_cap_t *lc = login_getclass (pw->pw_class);
/* have class and can become user? */
if (lc && !seteuid (pw->pw_uid)) {
/* ask for approval */
if (auth_approve (lc,pw->pw_name,
(char *) mail_parameters (NIL,GET_SERVICENAME,NIL)) <= 0)
seteuid (euid); /* not approved, restore root euid */
else { /* approved */
seteuid (euid); /* restore former root euid first */
setsid (); /* ensure we are session leader */
/* log the guy in */
ret = !setusercontext (lc,pw,pw->pw_uid,LOGIN_SETALL&~LOGIN_SETPATH);
}
}
return ret;
}
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