7769bf6a32
o Implement mailer_flags o Store syslog stuff both in int and string form. Setting the string form magically updates the int version. o Add boolean attribute to strings where it makes sense to say !foo
151 lines
4.4 KiB
C
151 lines
4.4 KiB
C
/*
|
|
* Copyright (c) 1994-1996,1998-1999 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* 4. Products derived from this software may not be called "Sudo" nor
|
|
* may "Sudo" appear in their names without specific prior written
|
|
* permission from the author.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#ifdef STDC_HEADERS
|
|
#include <stdlib.h>
|
|
#endif /* STDC_HEADERS */
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H */
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif /* HAVE_STRING_H */
|
|
#ifdef HAVE_STRINGS_H
|
|
#include <strings.h>
|
|
#endif /* HAVE_STRINGS_H */
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <pwd.h>
|
|
|
|
#if defined(HAVE_SKEY)
|
|
#include <skey.h>
|
|
#define RFC1938 skey
|
|
#define rfc1938challenge skeychallenge
|
|
#define rfc1938verify skeyverify
|
|
#elif defined(HAVE_OPIE)
|
|
#include <opie.h>
|
|
#define RFC1938 opie
|
|
#define rfc1938challenge opiechallenge
|
|
#define rfc1938verify opieverify
|
|
#endif
|
|
|
|
#include "sudo.h"
|
|
#include "sudo_auth.h"
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] = "$Sudo$";
|
|
#endif /* lint */
|
|
|
|
int
|
|
rfc1938_setup(pw, promptp, auth)
|
|
struct passwd *pw;
|
|
char **promptp;
|
|
sudo_auth *auth;
|
|
{
|
|
char challenge[256];
|
|
static char *orig_prompt = NULL, *new_prompt = NULL;
|
|
static int op_len, np_size;
|
|
static struct RFC1938 rfc1938;
|
|
|
|
/* Stash a pointer to the rfc1938 struct if we have not initialized */
|
|
if (!auth->data)
|
|
auth->data = &rfc1938;
|
|
|
|
/* Save the original prompt */
|
|
if (orig_prompt == NULL) {
|
|
orig_prompt = *promptp;
|
|
op_len = strlen(orig_prompt);
|
|
|
|
/* Ignore trailing colon (we will add our own) */
|
|
if (orig_prompt[op_len - 1] == ':')
|
|
op_len--;
|
|
else if (op_len >= 2 && orig_prompt[op_len - 1] == ' '
|
|
&& orig_prompt[op_len - 2] == ':')
|
|
op_len -= 2;
|
|
}
|
|
|
|
#ifdef HAVE_SKEY
|
|
/* Close old stream */
|
|
if (rfc1938.keyfile)
|
|
(void) fclose(rfc1938.keyfile);
|
|
#endif
|
|
|
|
/*
|
|
* Look up the user and get the rfc1938 challenge.
|
|
* If the user is not in the OTP db, only post a fatal error if
|
|
* we are running alone (since they may just use a normal passwd).
|
|
*/
|
|
if (rfc1938challenge(&rfc1938, pw->pw_name, challenge) != 0) {
|
|
if (IS_ONEANDONLY(auth)) {
|
|
(void) fprintf(stderr,
|
|
"%s: You do not exist in the %s database.\n",
|
|
Argv[0], auth->name);
|
|
return(AUTH_FATAL);
|
|
} else {
|
|
return(AUTH_FAILURE);
|
|
}
|
|
}
|
|
|
|
/* Get space for new prompt with embedded challenge */
|
|
if (np_size < op_len + strlen(challenge) + 7) {
|
|
np_size = op_len + strlen(challenge) + 7;
|
|
new_prompt = (char *) erealloc(new_prompt, np_size);
|
|
}
|
|
|
|
if (def_flag(I_LONG_OTP_PROMPT))
|
|
(void) sprintf(new_prompt, "%s\n%s", challenge, orig_prompt);
|
|
else
|
|
(void) sprintf(new_prompt, "%.*s [ %s ]:", op_len, orig_prompt,
|
|
challenge);
|
|
|
|
*promptp = new_prompt;
|
|
return(AUTH_SUCCESS);
|
|
}
|
|
|
|
int
|
|
rfc1938_verify(pw, pass, auth)
|
|
struct passwd *pw;
|
|
char *pass;
|
|
sudo_auth *auth;
|
|
{
|
|
|
|
if (rfc1938verify((struct RFC1938 *) auth->data, pass) == 0)
|
|
return(AUTH_SUCCESS);
|
|
else
|
|
return(AUTH_FAILURE);
|
|
}
|