workspace/kcheckpass/checkpass_aix.c

   1 /*
   2  * Copyright (c) 2001 Reza Arbab <arbab@austin.ibm.com>
   3  * Copyright (c) 2003 Oswald Buddenhagen <ossi@kde.org>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the Free
  17  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  */
  20
  21 #include "kcheckpass.h"
  22
  23 #ifdef HAVE_AIX_AUTH
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <errno.h>
  28
  29 /*
  30  * The AIX builtin authenticate() uses whichever method the system
  31  * has been configured for.  (/etc/passwd, DCE, etc.)
  32  */
  33 int authenticate(const char *, const char *, int *, char **);
  34
  35 AuthReturn Authenticate(const char *method,
  36         const char *login, char *(*conv) (ConvRequest, const char *))
  37 {
  38   int result;
  39   int reenter;  /* Tells if authenticate is done processing or not. */
  40   char *passwd;
  41   char *msg; /* Contains a prompt message or failure reason.     */
  42
  43   if (!strcmp(method, "classic")) {
  44
  45     if (!(passwd = conv(ConvGetHidden, 0)))
  46       return AuthAbort;
  47
  48     if ((result = authenticate(login, passwd, &reenter, &msg))) {
  49       if (msg) {
  50         conv(ConvPutError, msg);
  51         free(msg);
  52       }
  53       dispose(passwd);
  54       return AuthBad;
  55     }
  56     if (reenter) {
  57       char buf[256];
  58       snprintf(buf, sizeof(buf), "More authentication data requested: %s\n", msg);
  59       conv(ConvPutError, buf);
  60       free(msg);
  61       dispose(passwd);
  62       return result == ENOENT || result == ESAD ? AuthBad : AuthError;
  63     }
  64     dispose(passwd);
  65     return AuthOk;
  66
  67   } else if (!strcmp(method, "generic")) {
  68
  69     for (passwd = 0;;) {
  70       if ((result = authenticate(login, passwd, &reenter, &msg))) {
  71         if (msg) {
  72           conv(ConvPutError, msg);
  73           free(msg);
  74         }
  75         if (passwd)
  76           dispose(passwd);
  77         return result == ENOENT || result == ESAD ? AuthBad : AuthError;
  78       }
  79       if (passwd)
  80         dispose(passwd);
  81       if (!reenter)
  82         break;
  83       passwd = conv(ConvGetHidden, msg);
  84       free(msg);
  85       if (!passwd)
  86         return AuthAbort;
  87     }
  88     return AuthOk;
  89
  90   } else
  91     return AuthError;
  92
  93 }
  94
  95 #endif