/* setspass.c - set the supervisor password from the NW386 console
   Copyright (c) 1992 MurkWorks, All Rights Reserved

   Permission to use, copy, modify, and distribute this 
   software and its documentation for any purpose and without 
   fee is hereby granted, provided that the above copyright
   notice appear on all copies. MurkWorks makes no representations
   about the suitability of this software for any purpose. It is
   provided "as is" without express or implied warranty.

   MurkWorks, P.O. Box 631, Potsdam, NY 13676  315-265-4717
 -------------------------------------------------------------
   Title:   setspass

   Purpose: Allow the Novell supervisor's password to be set
            from the fileserver console. The user will be required
            to enter the Novell server serial number, which is not
            generally accesible to normal users. 

            If the entered serial number matches the server's 
            serial number, the user will be prompted to enter 
            a new supervisor password. 

            After the password is entered, the NLM will
            broadcast an announcement to all users indicating that
            the supervisor's password is being changed from the
            console. It will then set the password.
*/

#include	<stdio.h>
#include	<nwbindry.h>
#include	<nwserial.h>
#include	<nwenvrn.h>
#include	<nwcntask.h>
#include	<string.h>
#include	<conio.h>

int
main()		/* don't need argc nor argv in this program */
{
	char	buff[80];
	LONG	serialNumber;
	int	rc;
	WORD	appNumber;

	if(GetNetworkSerialNumber( & serialNumber, & appNumber)) {
		perror("GetNetworkSerialNumber");
		return(1);
	}
	/* if we couldn't get the serial number, print an error and
	   quit */

	printf("This NLM will change the supervisor's password.\n");
	printf("Before changing the password, you must enter this server's\n");
	printf("serial number. This number can be found on the original diskettes\n\n");

	while(1) {
		LONG	newSerialNumber;

		printf("Enter the server serial number [<Enter> = Quit]:");

		if(!fgets(buff,79, stdin) || buff[0] == '\n') {

			SetAutoScreenDestructionMode(TRUE);
			return(0);
					/* quit if error or null line was 
					   entered */
		}
		if(sscanf(buff,"%lx", & newSerialNumber) != 1 ||
		   newSerialNumber != serialNumber) {
		 	printf("The number you entered was incorrect\n");
			continue;
		}
		else
			break;		
	}

	while(1) {
		printf("Enter the new supervisor password, it must be at least one character\n");
		printf("and it will echo on the screen\n\n");
		printf("New Supervisor Password:");
	
		if(!fgets(buff,79,stdin) || buff[0] == '\n') {
		 	printf("You may not set the password to a null value\n");
			return(2);
				/* quit in case the user entered null
				   just to get out */
		}
	
		clrscr();		/* clear the screen */
	
		buff[strlen(buff) - 1] = 0;		/* chop off trailing newline */
	
		/* the password must be converted to upper case before being
	 	   stored in the bindery. This is because passwords are
		   case sensitive, but the NW shell always converts to
		   upper case before sending to the server.
		*/
		strupr(buff);
		rc = ChangeBinderyObjectPassword("SUPERVISOR", OT_USER, "" , buff);

		if(!rc)
			break;
	
		switch(rc) {
			case 0xd7 :
				printf("Duplicate password entered, enter a new password\n");
				continue;
			case 0xd8 :
				printf("Password is not long enough, enter a new password\n");
				continue;
			default :
				printf("Unable to change password, unknown error 0x%x\n",rc);
				return(rc);
		}	/* end switch */
	}	
	/* get here, password was changed ok */

	/* send a broadcast to all users, no more than 58 characters though! */
	SendConsoleBroadcast("The supervisor's password has been changed by setspass",
		0, NULL);

	printf("The supervisor password has been changed.\n");
	return(0);
}