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LoadRunner实现计算字符串Md5

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出处:网络 时间:2011-05-13

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核心提示:在LR里添加头文件md5.h,在globals.h里添加引用#include "md5.h";md5.h代码如下

  尝试在LR里实现字符串的MD5计算。

  在LR里添加头文件md5.h,在globals.h里添加引用#include "md5.h";md5.h代码如下:

LoadRunner实现计算字符串Md5

  #ifndef MD5_H

  #define MD5_H

  #ifdef __alpha

  typedefunsignedintuint32;

  #else

  typedefunsignedlonguint32;

  #endif

  structMD5Context {

  uint32 buf[4];

  uint32 bits[2];

  unsignedcharin[64];

  };

  externvoidMD5Init();

  externvoidMD5Update();

  externvoidMD5Final();

  externvoidMD5Transform();

  typedefstructMD5Context MD5_CTX;

  #endif

  #ifdef sgi

  #define HIGHFIRST

  #endif

  #ifdef sun

  #define HIGHFIRST

  #endif

  #ifndef HIGHFIRST

  #define byteReverse(buf, len)   /* Nothing */

  #else

  voidbyteReverse(buf, longs)unsignedchar*buf;unsignedlongs;

  {

  uint32 t;

  do{

  t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |((unsigned) buf[1] << 8 | buf[0]);

  *(uint32 *) buf = t;

  buf += 4;

  }while(--longs);

  }

  #endif

  voidMD5Init(ctx)structMD5Context *ctx;

  {

  ctx->buf[0] = 0x67452301;

  ctx->buf[1] = 0xefcdab89;

  ctx->buf[2] = 0x98badcfe;

  ctx->buf[3] = 0x10325476;

  ctx->bits[0] = 0;

  ctx->bits[1] = 0;

  }

  voidMD5Update(ctx, buf, len)structMD5Context *ctx;unsignedchar*buf;unsignedlen;

  {

  uint32 t;

  t = ctx->bits[0];

  if((ctx->bits[0] = t + ((uint32) len << 3)) < t)

  ctx->bits[1]++;

  ctx->bits[1] += len >> 29;

  t = (t >> 3) & 0x3f;

  if(t) {

  unsignedchar*p = (unsignedchar*) ctx->in + t;

  t = 64 - t;

  if(len < t) {

  memcpy(p, buf, len);

  return;

  }

  memcpy(p, buf, t);

  byteReverse(ctx->in, 16);

  MD5Transform(ctx->buf, (uint32 *) ctx->in);

  buf += t;

  len -= t;

  }

  while(len >= 64) {

  memcpy(ctx->in, buf, 64);

  byteReverse(ctx->in, 16);

  MD5Transform(ctx->buf, (uint32 *) ctx->in);

  buf += 64;

  len -= 64;

  }

  memcpy(ctx->in, buf, len);

  }

  voidMD5Final(digest, ctx)

  unsignedchardigest[16];structMD5Context *ctx;

  {

  unsignedcount;

  unsignedchar*p;

  count = (ctx->bits[0] >> 3) & 0x3F;

  p = ctx->in + count;

  *p++ = 0x80;

  count = 64 - 1 - count;

  if(count < 8) {

  memset(p, 0, count);

  byteReverse(ctx->in, 16);

  MD5Transform(ctx->buf, (uint32 *) ctx->in);

  memset(ctx->in, 0, 56);

  }else{

  memset(p, 0, count - 8);

  }

  byteReverse(ctx->in, 14);

  ((uint32 *) ctx->in)[14] = ctx->bits[0];

  ((uint32 *) ctx->in)[15] = ctx->bits[1];

  MD5Transform(ctx->buf, (uint32 *) ctx->in);

  byteReverse((unsignedchar*) ctx->buf, 4);

  memcpy(digest, ctx->buf, 16);

  memset(ctx, 0,sizeof(ctx));

  }

  #define F1(x, y, z) (z ^ (x & (y ^ z)))

  #define F2(x, y, z) F1(z, x, y)

  #define F3(x, y, z) (x ^ y ^ z)

  #define F4(x, y, z) (y ^ (x | ~z))

  #define MD5STEP(f, w, x, y, z, data, s) ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )

  voidMD5Transform(buf, in)

  uint32 buf[4]; uint32 in[16];

  {

  registeruint32 a, b, c, d;

  a = buf[0];

  b = buf[1];

  c = buf[2];

  d = buf[3];

  MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);

  MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);

  MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);

  MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);

  MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);

  MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);

  MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);

  MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);

  MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);

  MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);

  MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);

  MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);

  MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);

  MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);

  MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);

  MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);

  MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);

  MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);

  MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);

  MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);

  MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);

  MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);

  MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);

  MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);

  MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);

  MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);

  MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);

  MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);

  MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);

  MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);

  MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);

  MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);

  MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);

  MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);

  MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);

  MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);

  MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);

  MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);

  MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);

  MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);

  MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);

  MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);

  MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);

  MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);

  MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);

  MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);

  MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);

  MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);

  MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);

  MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);

  MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);

  MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);

  MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);

  MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);

  MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);

  MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);

  MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);

  MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);

  MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);

  MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);

  MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);

  MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);

  MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);

  MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);

  buf[0] += a;

  buf[1] += b;

  buf[2] += c;

  buf[3] += d;

  }

  char* CMd5(constchar* s)

  {

  structMD5Context md5c;

  unsignedcharss[16];

  charsubStr[3],resStr[33];

  inti;

  MD5Init( &md5c );

  MD5Update( &md5c, s, strlen(s) );

  MD5Final( ss, &md5c );

  strcpy(resStr,"");

  for( i=0; i<16; i++ )

  {

  sprintf(subStr,"%02x", ss[i] );

  itoa(ss[i],subStr,16);

  if(strlen(subStr)==1) {

  strcat(resStr,"0");

  }

  strcat(resStr,subStr);

  }

  strcat(resStr,"");

  returnresStr;

  }

  源码都是网上共享的,仅CMd5()函数稍作了改动,  void main()

  {

  lr_output_message(CMd5("a"));

  }

  输出结果:

  Running Vuser...

  Starting iteration 1.

  Starting action main.

  main.c(3): 0cc175b9c0f1b6a831c399e269772661

  Ending action main.

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