imap/src/osdep/unix/ckp_sec.c

   1 /* ========================================================================
   2  * Copyright 1988-2006 University of Washington
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *
  11  * ========================================================================
  12  */
  13
  14 /*
  15  * Program:     SecureWare check password
  16  *
  17  * Author:      Mark Crispin
  18  *              Networks and Distributed Computing
  19  *              Computing & Communications
  20  *              University of Washington
  21  *              Administration Building, AG-44
  22  *              Seattle, WA  98195
  23  *              Internet: MRC@CAC.Washington.EDU
  24  *
  25  * Date:        1 August 1988
  26  * Last Edited: 30 August 2006
  27  */
  28 \f
  29 /* Check password
  30  * Accepts: login passwd struct
  31  *          password string
  32  *          argument count
  33  *          argument vector
  34  * Returns: passwd struct if password validated, NIL otherwise
  35  */
  36
  37 struct passwd *checkpw (struct passwd *pw,char *pass,int argc,char *argv[])
  38 {
  39   struct pr_passwd *pp;
  40   set_auth_parameters (argc,argv);
  41   if ((pw->pw_passwd && pw->pw_passwd[0] && pw->pw_passwd[1] &&
  42        !strcmp (pw->pw_passwd,(char *) crypt (pass,pw->pw_passwd))) ||
  43       ((pp = getprpwnam (pw->pw_name)) && !pp->ufld.fd_lock &&
  44        pp->ufld.fd_encrypt && pp->ufld.fd_encrypt[0] &&
  45        pp->ufld.fd_encrypt[1] &&
  46        !strcmp (pp->ufld.fd_encrypt,bigcrypt (pass,pp->ufld.fd_encrypt))))
  47     endprpwent ();              /* don't need shadow password data any more */
  48   else pw = NIL;                /* password failed */
  49   return pw;
  50 }