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/*
* validate a password for a user
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
/*
* Includes
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "vms-pwd.h"
int hash_vms_password(char *output_buf,char *input_buf,int input_length,
char *username,int encryption_type,unsigned short salt);
/*
*
* Validate a VMS UserName/Password pair.
*
*/
int validate_user(name,password)
char *name;
char *password;
{
char password_buf[64];
char username_buf[31];
char encrypt_buf[8];
register int i;
register char *cp,*cp1;
struct passwd *user_entry;
/*
* Get the users UAF entry
*/
user_entry = getpwnam(name);
/*
* If user_entry == NULL then we got a bad error
* return -1 to indicate a bad error
*/
if (user_entry == NULL) return (-1);
/*
* Uppercase the password
*/
cp = password;
cp1 = password_buf;
while (*cp)
if (islower(*cp))
*cp1++ = toupper(*cp++);
else
*cp1++ = *cp++;
/*
* Get the length of the password
*/
i = strlen(password);
/*
* Encrypt the password
*/
hash_vms_password(encrypt_buf,password_buf,i,user_entry->pw_name,
user_entry->pw_encrypt, user_entry->pw_salt);
if (memcmp(encrypt_buf,user_entry->pw_passwd,8) == 0)
return(1);
else return(0);
}
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