www.pudn.com > SaServer_6.0.zip > autil.c

// Arminius' protocol utilities ver 0.1
//
// Any questions and bugs, mailto: arminius@mail.hwaei.com.tw

// -------------------------------------------------------------------
// The following definitions is to define game-dependent codes.
// Before compiling, remove the "//".
#define __STONEAGE
#include "version.h"
#include 
#include 
#include "autil.h"
#include "char.h"
#ifdef __STONEAGE
#include "lssproto_util.h"
#include "common.h"
#endif

// Nuke 0701 fix
char *MesgSlice[SLICE_MAX];
int SliceCount;

char PersonalKey[1024*4];

// -------------------------------------------------------------------
// Initialize utilities
//
BOOL util_Init( void)
{
  int i;

  for (i=0; i=0)) {
      ptr[0] = '\0';
      if (strlen(head) func(%d)\n", file, line, func);
	return;
  }
  // Robin adjust
  sprintf(t1, "&;%d%s;#;", func, buffer);
//  sprintf(t1, "&;%d%s;#;", func+23, buffer);
  util_EncodeMessage(t2, t1);
#ifdef __STONEAGE
  lssproto_Send(fd, t2);
#endif
}

int util_256to64(char *dst, char *src, int len, char *table)
{
  unsigned int dw,dwcounter,i;

  if (!dst || !src || !table) return 0;
  dw=0;
  dwcounter=0;
  for (i=0; i> 6 );
    if (i%3==2) {
      dst[ dwcounter++ ] = table[ dw & 0x3f ];
      dw = 0;
    }
  }
  if (dw) dst[ dwcounter++ ] = table[ dw ];
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// Convert 6-bit strings into 8-bit strings, buffers that store these strings
// must have enough space.
//
// arg: dst=6-bit string;  src=8-bit string;  table=mapping table
// ret: 0=failed  >0=bytes converted
int util_64to256(char *dst, char *src, char *table)
{
  unsigned int dw,dwcounter,i;
  char *ptr = NULL;

  dw=0;
  dwcounter=0;
  if (!dst || !src || !table) return 0;
  for (i=0; i> 8;
    } else {
      dw = (unsigned int)(ptr-table) & 0x3f;
    }
  }
  if (dw) dst[ dwcounter++ ] = dw & 0xff;
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// This basically is a 256to64 encoder.  But it shifts the result by key.
//
// arg: dst=6-bit string;  src=8-bit string;  len=src strlen;
//      table=mapping table;  key=rotate key;
// ret: 0=failed  >0=bytes converted
int util_256to64_shr(char *dst, char *src, int len, char *table, char *key)
{
  unsigned int dw,dwcounter,i,j;

  if (!dst || !src || !table || !key) return 0;
  if (strlen(key)<1) return 0;	// key can't be empty.
  dw=0;
  dwcounter=0;
  j=0;
  for (i=0; i> 6 );
    if (i%3==2) {
      dst[ dwcounter++ ] = table[ ((dw & 0x3f) + key[j]) % 64 ];// check!
      j++;  if (!key[j]) j=0;
      dw = 0;
    }
  }
  if (dw) dst[ dwcounter++ ] = table[ (dw + key[j]) % 64 ];	// check!
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// Decoding function of util_256to64_shr.
//
// arg: dst=8-bit string;  src=6-bit string;  table=mapping table;
//      key=rotate key;
// ret: 0=failed  >0=bytes converted
int util_shl_64to256(char *dst, char *src, char *table, char *key)
{
  unsigned int dw,dwcounter,i,j;
  char *ptr = NULL;

  if (!key || (strlen(key)<1)) return 0;	// must have key

  dw=0;
  dwcounter=0;
  j=0;
  if (!dst || !src || !table) return 0;
  for (i=0; i> 8;
    } else {
      // check!
      dw = (((unsigned int)(ptr-table) & 0x3f) + 64 - key[j]) % 64;
      j++;  if (!key[j]) j=0;
    }
  }
  if (dw) dst[ dwcounter++ ] = dw & 0xff;
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// This basically is a 256to64 encoder.  But it shifts the result by key.
//
// arg: dst=6-bit string;  src=8-bit string;  len=src strlen;
//      table=mapping table;  key=rotate key;
// ret: 0=failed  >0=bytes converted
int util_256to64_shl(char *dst, char *src, int len, char *table, char *key)
{
  unsigned int dw,dwcounter,i,j;

  if (!dst || !src || !table || !key) return 0;
  if (strlen(key)<1) return 0;	// key can't be empty.
  dw=0;
  dwcounter=0;
  j=0;
  for (i=0; i> 6 );
    if (i%3==2) {
      dst[ dwcounter++ ] = table[ ((dw & 0x3f) + 64 - key[j]) % 64 ];	// check!
      j++;  if (!key[j]) j=0;
      dw = 0;
    }
  }
  if (dw) dst[ dwcounter++ ] = table[ (dw + 64 - key[j]) % 64 ];	// check!
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// Decoding function of util_256to64_shl.
//
// arg: dst=8-bit string;  src=6-bit string;  table=mapping table;
//      key=rotate key;
// ret: 0=failed  >0=bytes converted
int util_shr_64to256(char *dst, char *src, char *table, char *key)
{
  unsigned int dw,dwcounter,i,j;
  char *ptr = NULL;

  if (!key || (strlen(key)<1)) return 0;	// must have key

  dw=0;
  dwcounter=0;
  j=0;
  if (!dst || !src || !table) return 0;
  for (i=0; i> 8;
    } else {
      // check!
      dw = (((unsigned int)(ptr-table) & 0x3f) + key[j]) % 64;
      j++;  if (!key[j]) j=0;
    }
  }
  if (dw) dst[ dwcounter++ ] = dw & 0xff;
  dst[ dwcounter ] = '\0';
  return dwcounter;
}

// -------------------------------------------------------------------
// Swap a integer (4 byte).
// The value "rule" indicates the swaping rule.  It's a 4 byte string
// such as "1324" or "2431".
//
void util_swapint(int *dst, int *src, char *rule)
{
  char *ptr, *qtr;
  int i;

  ptr = (char *) src;
  qtr = (char *) dst;
  for (i=0; i<4; i++) qtr[rule[i]-'1']=ptr[i];
}

// -------------------------------------------------------------------
// Xor a string.  Be careful that your string contains '0xff'.  Your
// data may lose.
//
void util_xorstring(char *dst, char *src)
{
	int i;
	if (strlen(src)>1024*64) return;

	for (i=0; i