#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <pwd.h>
#include "sudo.h"
#include "sudo_auth.h"
#ifndef lint
static const char rcsid[] = "$Sudo: passwd.c,v 1.14 2004/02/13 21:36:47 millert Exp $";
#endif
#define DESLEN 13
#define HAS_AGEINFO(p, l) (l == 18 && p[DESLEN] == ',')
int
passwd_init(pw, promptp, auth)
struct passwd *pw;
char **promptp;
sudo_auth *auth;
{
#ifdef HAVE_SKEYACCESS
if (skeyaccess(pw, user_tty, NULL, NULL) == 0)
return(AUTH_FAILURE);
#endif
return(AUTH_SUCCESS);
}
int
passwd_verify(pw, pass, auth)
struct passwd *pw;
char *pass;
sudo_auth *auth;
{
char sav, *epass;
size_t pw_len;
int error;
pw_len = strlen(pw->pw_passwd);
#ifdef HAVE_GETAUTHUID
error = strcmp(pw->pw_passwd, (char *) crypt16(pass, pw->pw_passwd));
if (!error)
return(AUTH_SUCCESS);
#endif
sav = pass[8];
if (pw_len == DESLEN || HAS_AGEINFO(pw->pw_passwd, pw_len))
pass[8] = '\0';
epass = (char *) crypt(pass, pw->pw_passwd);
pass[8] = sav;
if (HAS_AGEINFO(pw->pw_passwd, pw_len) && strlen(epass) == DESLEN)
error = strncmp(pw->pw_passwd, epass, DESLEN);
else
error = strcmp(pw->pw_passwd, epass);
return(error ? AUTH_FAILURE : AUTH_SUCCESS);
}