/*
* Copyright (c) 1996, 1998-2005, 2010-2012
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* 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.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <pwd.h>
#include <grp.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 */
#ifdef HAVE_GETPWANAM
# include <sys/label.h>
# include <sys/audit.h>
# include <pwdadj.h>
#endif /* HAVE_GETPWANAM */
#ifdef HAVE_GETAUTHUID
# include <auth.h>
#endif /* HAVE_GETAUTHUID */
#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, SUDO_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_ISSECURE
if (!issecure())
goto done;
#endif /* HAVE_ISSECURE */
#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 */
#ifdef HAVE_GETSPWUID
{
struct s_passwd *spw;
if ((spw = getspwuid(pw->pw_uid)) && spw->pw_passwd)
epw = spw->pw_passwd;
}
#endif /* HAVE_GETSPWUID */
#ifdef HAVE_GETPWANAM
{
struct passwd_adjunct *spw;
if ((spw = getpwanam(pw->pw_name)) && spw->pwa_passwd)
epw = spw->pwa_passwd;
}
#endif /* HAVE_GETPWANAM */
#ifdef HAVE_GETAUTHUID
{
AUTHORIZATION *spw;
if ((spw = getauthuid(pw->pw_uid)) && spw->a_password)
epw = spw->a_password;
}
#endif /* HAVE_GETAUTHUID */
#if defined(HAVE_ISCOMSEC) || defined(HAVE_ISSECURE)
done:
#endif
/* If no shadow password, fall back on regular password. */
debug_return_str(estrdup(epw ? epw : pw->pw_passwd));
}
void
sudo_setspent(void)
{
debug_decl(sudo_setspent, SUDO_DEBUG_AUTH)
#ifdef HAVE_GETPRPWNAM
setprpwent();
#endif
#ifdef HAVE_GETSPNAM
setspent();
#endif
#ifdef HAVE_GETSPWUID
setspwent();
#endif
#ifdef HAVE_GETPWANAM
setpwaent();
#endif
#ifdef HAVE_GETAUTHUID
setauthent();
#endif
debug_return;
}
void
sudo_endspent(void)
{
debug_decl(sudo_endspent, SUDO_DEBUG_AUTH)
#ifdef HAVE_GETPRPWNAM
endprpwent();
#endif
#ifdef HAVE_GETSPNAM
endspent();
#endif
#ifdef HAVE_GETSPWUID
endspwent();
#endif
#ifdef HAVE_GETPWANAM
endpwaent();
#endif
#ifdef HAVE_GETAUTHUID
endauthent();
#endif
debug_return;
}
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