
A new constant, SUDO_CONV_REPL_MAX, is defined by the plugin API as the max conversation reply length. This constant can be used as a max value for memset_s() when clearing passwords filled in by the conversation function.
114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
/*
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* Copyright (c) 1998-2005, 2010-2013 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 <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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#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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#include "sudoers.h"
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#include "sudo_auth.h"
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int
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sudo_secureware_init(struct passwd *pw, sudo_auth *auth)
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{
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#ifdef __alpha
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extern int crypt_type;
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debug_decl(sudo_secureware_init, SUDO_DEBUG_AUTH)
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if (crypt_type == INT_MAX)
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debug_return_int(AUTH_FAILURE); /* no shadow */
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#else
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debug_decl(secureware_init, SUDO_DEBUG_AUTH)
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#endif
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sudo_setspent();
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auth->data = sudo_getepw(pw);
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sudo_endspent();
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debug_return_int(AUTH_SUCCESS);
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}
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int
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sudo_secureware_verify(struct passwd *pw, char *pass, sudo_auth *auth)
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{
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char *pw_epasswd = auth->data;
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char *epass = NULL;
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debug_decl(sudo_secureware_verify, SUDO_DEBUG_AUTH)
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#ifdef __alpha
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{
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extern int crypt_type;
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# ifdef HAVE_DISPCRYPT
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epass = dispcrypt(pass, pw_epasswd, crypt_type);
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# else
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if (crypt_type == AUTH_CRYPT_BIGCRYPT)
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epass = bigcrypt(pass, pw_epasswd);
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else if (crypt_type == AUTH_CRYPT_CRYPT16)
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epass = crypt(pass, pw_epasswd);
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}
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# endif /* HAVE_DISPCRYPT */
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#elif defined(HAVE_BIGCRYPT)
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epass = bigcrypt(pass, pw_epasswd);
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#endif /* __alpha */
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if (epass != NULL && strcmp(pw_epasswd, epass) == 0)
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debug_return_int(AUTH_SUCCESS);
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debug_return_int(AUTH_FAILURE);
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}
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int
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sudo_secureware_cleanup(pw, auth)
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struct passwd *pw;
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sudo_auth *auth;
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{
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char *pw_epasswd = auth->data;
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debug_decl(sudo_secureware_cleanup, SUDO_DEBUG_AUTH)
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if (pw_epasswd != NULL) {
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memset_s(pw_epasswd, SUDO_CONV_REPL_MAX, 0, strlen(pw_epasswd));
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efree(pw_epasswd);
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}
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debug_return_int(AUTH_SUCCESS);
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}
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