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view libtommath/bn_mp_to_signed_bin.c @ 296:6b41e2cbf071 dbclient-netcat-alike

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A hack to make dbclient to tcp forwarding netcat style. eg ./dbclient -i testkey -L 1234:remotehost:remoteport tunnelhost will ssh to tunnelhost (using testkey, there's no way to ask for a password) and then tcpfwd to remotehost:remoteport on stdin/stdout. There's no way to give a cmdline password, so -i for a keyfile will have to do. Yet another reason for agent forwarding. The 1234 is a dummy var, I think it has to be a valid portnumber though.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 21 Mar 2006 16:16:41 +0000
parents eed26cff980b
children 5ff8218bcee9
line wrap: on
line source

#include <tommath.h>
#ifdef BN_MP_TO_SIGNED_BIN_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
 *
 * LibTomMath is a library that provides multiple-precision
 * integer arithmetic as well as number theoretic functionality.
 *
 * The library was designed directly after the MPI library by
 * Michael Fromberger but has been written from scratch with
 * additional optimizations in place.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 *
 * Tom St Denis, [email protected], http://math.libtomcrypt.org
 */

/* store in signed [big endian] format */
int mp_to_signed_bin (mp_int * a, unsigned char *b)
{
  int     res;

  if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) {
    return res;
  }
  b[0] = (unsigned char) ((a->sign == MP_ZPOS) ? 0 : 1);
  return MP_OKAY;
}
#endif