packet_store_header.c

来自「常用的64位密码加密算法」· C语言 代码 · 共 30 行

/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 *
 * Tom St Denis, [e-mail], http://libtomcrypt.org
 */
#include "mycrypt.h"

#ifdef PACKET

void packet_store_header(unsigned char *dst, int section, int subsection)
{
   _ARGCHK(dst != NULL);

   /* store version number */
   dst[0] = (unsigned char)(CRYPT&255);
   dst[1] = (unsigned char)((CRYPT>>8)&255);

   /* store section and subsection */
   dst[2] = (unsigned char)(section & 255);
   dst[3] = (unsigned char)(subsection & 255);

}

#endif