
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.
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* Copyright (c) 1999-2005, 2007-2013 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_STRING_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 <usersec.h>
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#include "sudoers.h"
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#include "sudo_auth.h"
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/*
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* For a description of the AIX authentication API, see
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* http://publib16.boulder.ibm.com/doc_link/en_US/a_doc_lib/libs/basetrf1/authenticate.htm
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*/
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int
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sudo_aix_verify(struct passwd *pw, char *prompt, sudo_auth *auth)
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{
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char *pass, *message = NULL;
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int result = 1, reenter = 0;
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int rval = AUTH_SUCCESS;
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debug_decl(sudo_aix_verify, SUDO_DEBUG_AUTH)
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do {
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pass = auth_getpass(prompt, def_passwd_timeout * 60,
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SUDO_CONV_PROMPT_ECHO_OFF);
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if (pass == NULL)
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break;
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efree(message);
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message = NULL;
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result = authenticate(pw->pw_name, pass, &reenter, &message);
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memset_s(pass, SUDO_CONV_REPL_MAX, 0, strlen(pass));
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prompt = message;
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} while (reenter);
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if (result != 0) {
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/* Display error message, if any. */
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if (message != NULL) {
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struct sudo_conv_message msg;
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struct sudo_conv_reply repl;
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memset(&msg, 0, sizeof(msg));
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msg.msg_type = SUDO_CONV_ERROR_MSG;
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msg.msg = message;
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memset(&repl, 0, sizeof(repl));
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sudo_conv(1, &msg, &repl);
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}
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rval = pass ? AUTH_FAILURE : AUTH_INTR;
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}
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efree(message);
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debug_return_int(rval);
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}
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int
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sudo_aix_cleanup(struct passwd *pw, sudo_auth *auth)
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{
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debug_decl(sudo_aix_cleanup, SUDO_DEBUG_AUTH)
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/* Unset AUTHSTATE as it may not be correct for the runas user. */
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sudo_unsetenv("AUTHSTATE");
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debug_return_int(AUTH_SUCCESS);
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}
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