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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 1998-2005, 2010-2015 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#ifdef HAVE_GETPRPWNAM
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#ifdef __hpux
# undef MAXINT
# include <hpsecurity.h>
#else
# include <sys/security.h>
#endif /* __hpux */
#include <prot.h>
#include "sudoers.h"
#include "sudo_auth.h"
#ifdef __alpha
extern int crypt_type;
#endif
int
sudo_secureware_init(struct passwd *pw, sudo_auth *auth)
{
debug_decl(sudo_secureware_init, SUDOERS_DEBUG_AUTH);
/* Only initialize once. */
if (auth->data != NULL)
debug_return_int(AUTH_SUCCESS);
#ifdef __alpha
if (crypt_type == INT_MAX)
debug_return_int(AUTH_FAILURE); /* no shadow */
#endif
sudo_setspent();
auth->data = sudo_getepw(pw);
sudo_endspent();
debug_return_int(auth->data ? AUTH_SUCCESS : AUTH_FATAL);
}
int
sudo_secureware_verify(struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback)
{
char *pw_epasswd = auth->data;
char *epass = NULL;
debug_decl(sudo_secureware_verify, SUDOERS_DEBUG_AUTH);
/* An empty plain-text password must match an empty encrypted password. */
if (pass[0] == '\0')
debug_return_int(pw_epasswd[0] ? AUTH_FAILURE : AUTH_SUCCESS);
#if defined(__alpha)
# ifdef HAVE_DISPCRYPT
epass = dispcrypt(pass, pw_epasswd, crypt_type);
# else
if (crypt_type == AUTH_CRYPT_BIGCRYPT)
epass = bigcrypt(pass, pw_epasswd);
else if (crypt_type == AUTH_CRYPT_CRYPT16)
epass = crypt(pass, pw_epasswd);
# endif /* HAVE_DISPCRYPT */
#elif defined(HAVE_BIGCRYPT)
epass = bigcrypt(pass, pw_epasswd);
#endif /* __alpha */
if (epass != NULL && strcmp(pw_epasswd, epass) == 0)
debug_return_int(AUTH_SUCCESS);
debug_return_int(AUTH_FAILURE);
}
int
sudo_secureware_cleanup(struct passwd *pw, sudo_auth *auth, bool force)
{
char *pw_epasswd = auth->data;
debug_decl(sudo_secureware_cleanup, SUDOERS_DEBUG_AUTH);
if (pw_epasswd != NULL)
freezero(pw_epasswd, strlen(pw_epasswd));
debug_return_int(AUTH_SUCCESS);
}
#endif /* HAVE_GETPRPWNAM */
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