30fe4a067c
Set adminstrative domain for the process when looking up user's
password or group info and when preparing for execve().
Include strings.h even if string.h exists since they may define
different things. Fixes warnings on AIX and others.
187 lines
4.1 KiB
C
187 lines
4.1 KiB
C
/*
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* Copyright (c) 1996, 1998-2005, 2010
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* Todd C. Miller <Todd.Miller@courtesan.com>
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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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#include <config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif /* STDC_HEADERS */
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif /* HAVE_STRINGS_H */
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <pwd.h>
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#include <grp.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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#ifdef HAVE_GETPWANAM
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# include <sys/label.h>
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# include <sys/audit.h>
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# include <pwdadj.h>
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#endif /* HAVE_GETPWANAM */
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#ifdef HAVE_GETAUTHUID
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# include <auth.h>
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#endif /* HAVE_GETAUTHUID */
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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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/* 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_ISSECURE
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if (!issecure())
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goto done;
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#endif /* HAVE_ISSECURE */
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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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#ifdef HAVE_GETSPWUID
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{
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struct s_passwd *spw;
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if ((spw = getspwuid(pw->pw_uid)) && spw->pw_passwd)
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epw = spw->pw_passwd;
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}
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#endif /* HAVE_GETSPWUID */
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#ifdef HAVE_GETPWANAM
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{
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struct passwd_adjunct *spw;
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if ((spw = getpwanam(pw->pw_name)) && spw->pwa_passwd)
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epw = spw->pwa_passwd;
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}
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#endif /* HAVE_GETPWANAM */
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#ifdef HAVE_GETAUTHUID
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{
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AUTHORIZATION *spw;
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if ((spw = getauthuid(pw->pw_uid)) && spw->a_password)
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epw = spw->a_password;
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}
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#endif /* HAVE_GETAUTHUID */
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#if defined(HAVE_ISCOMSEC) || defined(HAVE_ISSECURE)
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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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return estrdup(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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#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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#ifdef HAVE_GETSPWUID
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setspwent();
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#endif
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#ifdef HAVE_GETPWANAM
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setpwaent();
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#endif
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#ifdef HAVE_GETAUTHUID
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setauthent();
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#endif
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}
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void
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sudo_endspent(void)
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{
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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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#ifdef HAVE_GETSPWUID
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endspwent();
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#endif
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#ifdef HAVE_GETPWANAM
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endpwaent();
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#endif
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#ifdef HAVE_GETAUTHUID
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endauthent();
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#endif
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}
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