/* *
 * "  http://www.firebirdsql.org
 *
 *   or affiliated sites:
 *
 *     http://www.ibphoenix.com
 *
 *
 *     The Firebird(tm) database engine is derived from the InterBase(r)
 *     product currently owned by Borland.  The documentation for
 *     InterBase v 6.0 applies also to the current FireBird release.
 *     InterBase documentation is available in Adobe Acrobat format from
 *     http://info.borland.com/techpubs/interbase/."
 *
 *
 *     The "information database" stored in the file isc4.gdb is read and
 *     writeable for all users with the default rpm installation of
 *     Firebird-1.0.3 for Linux.

 [root@Fester interbase]# ls -l /opt/interbase/isc4.gdb
 -rw-rw-rw-    1 root     root       618497 Jun  8 14:44 /opt/interbase/isc4.gdb

 This file contains the password hashes and usernames for the firebird database. The passwords are hashed twice, once with the static salt "9z" and a second
 time with the returned crypt text minus the salt.


 crypt(&crypt(user_password,"9z")[2],"9z")
 */




#include <stdio.h>
#include <unistd.h>

#define SALT "9z"

int main (int argc, char *argv[]) {
	char *crypt1,*crypt2;

        if (!argv[1]) {printf ("Firebird db password tool.\nLarry Cashdollar, vapid labs\nEnter desired password as an argument\n");exit();}

	crypt1 =(char *) crypt (argv[1],SALT);
	crypt2 =(char *) crypt (&crypt1[2],SALT);

	printf("Double crypt() is: %s\n",crypt2);
	printf("With out salt (as stored in isc4.gdb: %s\n",&crypt2[2]);
	return(0);
}