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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 1996, 1998-2005, 2010-2012, 2014-2015
* 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>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#ifdef HAVE_GETSPNAM
# include <shadow.h>
#endif /* HAVE_GETSPNAM */
#ifdef HAVE_GETPRPWNAM
# ifdef __hpux
# undef MAXINT
# include <hpsecurity.h>
# else
# include <sys/security.h>
# endif /* __hpux */
# include <prot.h>
#endif /* HAVE_GETPRPWNAM */
#include "sudoers.h"
/*
* Exported for auth/secureware.c
*/
#if defined(HAVE_GETPRPWNAM) && defined(__alpha)
int crypt_type = INT_MAX;
#endif /* HAVE_GETPRPWNAM && __alpha */
/*
* Return a copy of the encrypted password for the user described by pw.
* If shadow passwords are in use, look in the shadow file.
*/
char *
sudo_getepw(const struct passwd *pw)
{
char *epw = NULL;
debug_decl(sudo_getepw, SUDOERS_DEBUG_AUTH);
/* If there is a function to check for shadow enabled, use it... */
#ifdef HAVE_ISCOMSEC
if (!iscomsec())
goto done;
#endif /* HAVE_ISCOMSEC */
#ifdef HAVE_GETPWNAM_SHADOW
{
struct passwd *spw;
/* On OpenBSD we need to closed the non-shadow passwd db first. */
endpwent();
if ((spw = getpwnam_shadow(pw->pw_name)) != NULL)
epw = spw->pw_passwd;
setpassent(1);
}
#endif /* HAVE_GETPWNAM_SHADOW */
#ifdef HAVE_GETPRPWNAM
{
struct pr_passwd *spw;
if ((spw = getprpwnam(pw->pw_name)) && spw->ufld.fd_encrypt) {
# ifdef __alpha
crypt_type = spw->ufld.fd_oldcrypt;
# endif /* __alpha */
epw = spw->ufld.fd_encrypt;
}
}
#endif /* HAVE_GETPRPWNAM */
#ifdef HAVE_GETSPNAM
{
struct spwd *spw;
if ((spw = getspnam(pw->pw_name)) && spw->sp_pwdp)
epw = spw->sp_pwdp;
}
#endif /* HAVE_GETSPNAM */
#if defined(HAVE_ISCOMSEC)
done:
#endif
/* If no shadow password, fall back on regular password. */
debug_return_str(strdup(epw ? epw : pw->pw_passwd));
}
void
sudo_setspent(void)
{
debug_decl(sudo_setspent, SUDOERS_DEBUG_AUTH);
#ifdef HAVE_GETPRPWNAM
setprpwent();
#endif
#ifdef HAVE_GETSPNAM
setspent();
#endif
debug_return;
}
void
sudo_endspent(void)
{
debug_decl(sudo_endspent, SUDOERS_DEBUG_AUTH);
#ifdef HAVE_GETPRPWNAM
endprpwent();
#endif
#ifdef HAVE_GETSPNAM
endspent();
#endif
debug_return;
}
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