mirror of https://github.com/sudo-project/sudo.git
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 1996, 1998-2005, 2010-2012, 2014-2015
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* Todd C. Miller <Todd.Miller@sudo.ws>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Sponsored in part by the Defense Advanced Research Projects
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* Agency (DARPA) and Air Force Research Laboratory, Air Force
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* Materiel Command, USAF, under agreement number F39502-99-1-0512.
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*/
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/*
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* This is an open source non-commercial project. Dear PVS-Studio, please check it.
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* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <pwd.h>
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#ifdef HAVE_GETSPNAM
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# include <shadow.h>
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#endif /* HAVE_GETSPNAM */
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#ifdef HAVE_GETPRPWNAM
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# ifdef __hpux
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# undef MAXINT
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# include <hpsecurity.h>
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# else
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# include <sys/security.h>
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# endif /* __hpux */
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# include <prot.h>
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#endif /* HAVE_GETPRPWNAM */
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#include <sudoers.h>
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/*
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* Exported for auth/secureware.c
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*/
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#if defined(HAVE_GETPRPWNAM) && defined(__alpha)
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int crypt_type = INT_MAX;
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#endif /* HAVE_GETPRPWNAM && __alpha */
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/*
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* Return a copy of the encrypted password for the user described by pw.
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* If shadow passwords are in use, look in the shadow file.
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*/
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char *
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sudo_getepw(const struct passwd *pw)
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{
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char *epw = NULL;
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debug_decl(sudo_getepw, SUDOERS_DEBUG_AUTH);
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/* If there is a function to check for shadow enabled, use it... */
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#ifdef HAVE_ISCOMSEC
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if (!iscomsec())
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goto done;
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#endif /* HAVE_ISCOMSEC */
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#ifdef HAVE_GETPWNAM_SHADOW
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{
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struct passwd *spw;
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/* On OpenBSD we need to closed the non-shadow passwd db first. */
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endpwent();
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if ((spw = getpwnam_shadow(pw->pw_name)) != NULL)
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epw = spw->pw_passwd;
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setpassent(1);
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}
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#endif /* HAVE_GETPWNAM_SHADOW */
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#ifdef HAVE_GETPRPWNAM
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{
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struct pr_passwd *spw;
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if ((spw = getprpwnam(pw->pw_name)) && spw->ufld.fd_encrypt) {
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# ifdef __alpha
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crypt_type = spw->ufld.fd_oldcrypt;
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# endif /* __alpha */
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epw = spw->ufld.fd_encrypt;
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}
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}
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#endif /* HAVE_GETPRPWNAM */
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#ifdef HAVE_GETSPNAM
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{
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struct spwd *spw;
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if ((spw = getspnam(pw->pw_name)) && spw->sp_pwdp)
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epw = spw->sp_pwdp;
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}
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#endif /* HAVE_GETSPNAM */
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#if defined(HAVE_ISCOMSEC)
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done:
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#endif
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/* If no shadow password, fall back on regular password. */
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debug_return_str(strdup(epw ? epw : pw->pw_passwd));
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}
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void
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sudo_setspent(void)
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{
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debug_decl(sudo_setspent, SUDOERS_DEBUG_AUTH);
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#ifdef HAVE_GETPRPWNAM
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setprpwent();
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#endif
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#ifdef HAVE_GETSPNAM
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setspent();
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#endif
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debug_return;
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}
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void
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sudo_endspent(void)
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{
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debug_decl(sudo_endspent, SUDOERS_DEBUG_AUTH);
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#ifdef HAVE_GETPRPWNAM
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endprpwent();
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#endif
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#ifdef HAVE_GETSPNAM
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endspent();
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#endif
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debug_return;
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}
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