mirror of https://github.com/sudo-project/sudo.git
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/*
|
|
* 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(const struct sudoers_context *ctx, 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_ERROR);
|
|
}
|
|
|
|
int
|
|
sudo_secureware_verify(const struct sudoers_context *ctx, 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(const struct sudoers_context *ctx, 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 */
|