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87 lines
2.5 KiB
87 lines
2.5 KiB
/*
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* Copyright (C) 1998 Christian Esken <esken@kde.org>
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* Copyright (C) 2003 Oswald Buddenhagen <ossi@kde.org>
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*
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* This is a modified version of checkpass_shadow.cpp
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*
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* Modifications made by Thorsten Kukuk <kukuk@suse.de>
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* Mathias Kettner <kettner@suse.de>
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*
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* ------------------------------------------------------------
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "kcheckpass.h"
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/*******************************************************************
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* This is the authentication code for Shadow-Passwords
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*******************************************************************/
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#ifdef HAVE_SHADOW
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#include <string.h>
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#include <stdlib.h>
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#include <pwd.h>
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#ifndef __hpux
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#include <shadow.h>
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#endif
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AuthReturn Authenticate(const char *method,
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const char *login, char *(*conv) (ConvRequest, const char *))
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{
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char *typed_in_password;
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char *crpt_passwd;
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char *password;
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struct passwd *pw;
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struct spwd *spw;
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if (strcmp(method, "classic"))
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return AuthError;
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if (!(pw = getpwnam(login)))
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return AuthAbort;
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spw = getspnam(login);
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password = spw ? spw->sp_pwdp : pw->pw_passwd;
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if (!*password)
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return AuthOk;
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if (!(typed_in_password = conv(ConvGetHidden, 0)))
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return AuthAbort;
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#if defined( __linux__ ) && defined( HAVE_PW_ENCRYPT )
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crpt_passwd = pw_encrypt(typed_in_password, password); /* (1) */
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#else
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crpt_passwd = crypt(typed_in_password, password);
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#endif
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if (!strcmp(password, crpt_passwd )) {
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dispose(typed_in_password);
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return AuthOk; /* Success */
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}
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dispose(typed_in_password);
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return AuthBad; /* Password wrong or account locked */
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}
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/*
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(1) Deprecated - long passwords have known weaknesses. Also,
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pw_encrypt is non-standard (requires libshadow.a) while
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everything else you need to support shadow passwords is in
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the standard (ELF) libc.
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*/
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#endif
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