root/lib/action/listaction.c

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DEFINITIONS

This source file includes following definitions.
  1. println
  2. readUInt8
  3. readSInt8
  4. readSInt16
  5. readUInt16
  6. readSInt32
  7. readUInt32
  8. readDouble
  9. readString
  10. dumpBytes
  11. printActionRecord
  12. printDoAction

#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include "action.h"
#include "compile.h"


#define print(x)        {fputs(x,stdout);}

int gIndent;
#define INDENT_LEVEL 2

void println(const char *s, ...)
{
  va_list ap;
  int n = gIndent*INDENT_LEVEL;

  while(n-- > 0)
    putchar(' ');

  va_start(ap, s);
  vprintf(s, ap);
  va_end(ap);

  putchar('\n');
}

int fileOffset = 0;

int readUInt8(Buffer f)
{
  return f->buffer[fileOffset++];
}

int readSInt8(Buffer f)
{
  return (signed char)readUInt8(f);
}

int readSInt16(Buffer f)
{
  return readUInt8(f) + readSInt8(f)*256;
}

int readUInt16(Buffer f)
{
  return readUInt8(f) + (readUInt8(f)<<8);
}

long readSInt32(Buffer f)
{
  return (long)readUInt8(f) + (readUInt8(f)<<8) + (readUInt8(f)<<16) + (readUInt8(f)<<24);
}

unsigned long readUInt32(Buffer f)
{
  return (unsigned long)(readUInt8(f) + (readUInt8(f)<<8) + (readUInt8(f)<<16) + (readUInt8(f)<<24));
}

double readDouble(Buffer f)
{
  double d;
  unsigned char *p = (unsigned char *)&d;

  p[4] = readUInt8(f);
  p[5] = readUInt8(f);
  p[6] = readUInt8(f);
  p[7] = readUInt8(f);
  p[0] = readUInt8(f);
  p[1] = readUInt8(f);
  p[2] = readUInt8(f);
  p[3] = readUInt8(f);

  return d;
}

char *readString(Buffer f)
{
  int len = 0, buflen = 256;
  char c, *buf, *p;

  buf = (char *)malloc(sizeof(char)*256);
  p = buf;

  while((c=(char)readUInt8(f)) != '\0')
  {
    if(len==buflen)
    {
      buf = (char *)realloc(buf, sizeof(char)*(buflen+256));
      buflen += 256;
      p = buf+len;
    }

    *(p++) = c;
    ++len;
  }

  *p = 0;

  return buf;
}

void dumpBytes(Buffer f, int length)
{
  int j=0, i, k;
  unsigned char buf[16];

  if(length==0)
    return;

  for(;;)
  {
    for(i=0; i<16; ++i)
    {
      printf("%02x ", buf[i] = readUInt8(f));
      ++j;

      if(j==length)
                break;
    }

    if(j==length)
    {
      for(k=i+1; k<16; ++k)
        print("   ");

      ++i;
    }

    print("   ");

    for(k=0; k<i; ++k)
      if((buf[k] > 31) && (buf[k] < 128))
        putchar(buf[k]);
      else
        putchar('.');

    putchar('\n');

    if(j==length)
      break;
  }
  putchar('\n');
  putchar('\n');
}

void printDoAction(Buffer f, int length);

char *dictionary[256];

int printActionRecord(Buffer f)
{
  int length = 0, type;

  printf("(%i)\t", fileOffset);

  type = readUInt8(f);

  if((type&0x80) == 0x80)
    length = readUInt16(f);

  switch(type)
  {
    case SWFACTION_ADD:
      println("Add");
      break;
    case SWFACTION_SUBTRACT:
      println("Subtract");
      break;
    case SWFACTION_MULTIPLY:
      println("Multiply");
      break;
    case SWFACTION_DIVIDE:
      println("Divide");
      break;
    case SWFACTION_EQUAL:
      println("Equals");
      break;
    case SWFACTION_LESSTHAN:
      println("Less Than");
      break;
    case SWFACTION_LOGICALAND:
      println("And");
      break;
    case SWFACTION_LOGICALOR:
      println("Or");
      break;
    case SWFACTION_LOGICALNOT:
      println("Not");
      break;
    case SWFACTION_STRINGEQ:
      println("String eq");
      break;
    case SWFACTION_STRINGLENGTH:
      println("String Length");
      break;
    case SWFACTION_SUBSTRING:
      println("Substring");
      break;
    case SWFACTION_POP:
      println("Pop");
      break;
    case SWFACTION_INT:
      println("Int");
      break;
    case SWFACTION_GETVARIABLE:
      println("Get Variable");
      break;
    case SWFACTION_SETVARIABLE:
      println("Set Variable");
      break;
    case SWFACTION_SETTARGETEXPRESSION:
      println("Set Target Expression");
      break;
    case SWFACTION_STRINGCONCAT:
      println("String Concat");
      break;
    case SWFACTION_GETPROPERTY:
      println("Get Property");
      break;
    case SWFACTION_SETPROPERTY:
      println("Set Property");
      break;
    case SWFACTION_DUPLICATECLIP:
      println("Duplicate Clip");
      break;
    case SWFACTION_REMOVECLIP:
      println("Remove Clip");
      break;
    case SWFACTION_TRACE:
      println("Trace");
      break;
    case SWFACTION_STARTDRAGMOVIE:
      println("Start Drag Movie");
      break;
    case SWFACTION_STOPDRAGMOVIE:
      println("Stop Drag Movie");
      break;
    case SWFACTION_STRINGCOMPARE:
      println("String Compare");
      break;
    case SWFACTION_RANDOM:
      println("Random");
      break;
    case SWFACTION_MBLENGTH:
      println("String MB Length");
      break;
    case SWFACTION_ORD:
      println("Ord");
      break;
    case SWFACTION_CHR:
      println("Chr");
      break;
    case SWFACTION_GETTIMER:
      println("Get Timer");
      break;
    case SWFACTION_MBSUBSTRING:
      println("MB Substring");
      break;
    case SWFACTION_MBORD:
      println("MB Ord");
      break;
    case SWFACTION_MBCHR:
      println("MB Chr");
      break;
    case SWFACTION_NEXTFRAME:
      println("Next Frame");
      break;
    case SWFACTION_PREVFRAME:
      println("Previous Frame");
      break;
    case SWFACTION_PLAY:
      println("Play");
      break;
    case SWFACTION_STOP:
      println("Stop");
      break;
    case SWFACTION_TOGGLEQUALITY:
      println("Toggle Quality");
      break;
    case SWFACTION_STOPSOUNDS:
      println("Stop Sounds");
      break;

    /* ops with args */
    case SWFACTION_PUSHDATA:
    {
      int type;
      int start = fileOffset;

      while(fileOffset < start+length)
      {
        switch(type = readUInt8(f))
        {
          case 0: /* string */
            println("Push String: %s", readString(f));
            break;
          case 1: /* property */
            readUInt16(f); /* always 0? */
            println("Push Property: %04x", readUInt16(f));
            break;
          case 2: /* null */
            println("Push NULL");
            break;
          case 3: /* ??? */
            println("Push type 3- ??");
            break;
          case 4: 
            println("Push register %i", readUInt8(f));
            break;
          case 5:
            if(readUInt8(f))
              println("Push true");
            else
              println("Push false");
            break;
          case 6: /* double */
            println("Push %f", readDouble(f));
            break;
          case 7: /* int */
            println("Push %i", readSInt32(f));
            break;
          case 8: /* dictionary */
            println("Push \"%s\"", dictionary[readUInt8(f)]);
            break;
          case 9: /* dictionary */
            println("Push \"%s\"", dictionary[readSInt16(f)]);
          default:
            println("unknown push type: %i", type);
        }
      }
      break;
    }
    case SWFACTION_GOTOFRAME:
      println("Goto Frame %i", readUInt16(f));
      break;
    case SWFACTION_GETURL:
    {
      char *url = readString(f);
      println("Get URL \"%s\" target \"%s\"", url, readString(f));
      break;
    }
    case SWFACTION_WAITFORFRAMEEXPRESSION:
      println("Wait For Frame Expression, skip %i\n", readUInt8(f));
      break;
    case SWFACTION_BRANCHALWAYS:
      println("Branch Always %i", readSInt16(f));
      break;
    case SWFACTION_GETURL2:
      {
        int flags = readUInt8(f);

        const char *op = (flags & 0x80) ? "Get URL2 (loadvariables)" : "Get URL2";
        const char *tgt = (flags & 0x40) ? " into target" : "";

        switch(flags & 0x03)
        {
          case 0: println("%s%s (Don't send)", op, tgt); break;
          case 1: println("%s%s (GET)", op, tgt); break;
          case 2: println("%s%s (POST)", op, tgt); break;
        }
      }
      break;
    case SWFACTION_BRANCHIFTRUE:
      println("Branch If True %i", readSInt16(f));
      break;
    case SWFACTION_CALLFRAME:
      println("Call Frame");
      dumpBytes(f, length);
      break;
    case SWFACTION_GOTOEXPRESSION:
      print("Goto Expression");
      if(readUInt8(f) == 1)
        printf(" and Play\n");
      else
        printf(" and Stop\n");
      break;
    case SWFACTION_WAITFORFRAME:
    {
      int frame = readUInt16(f);
      println("Wait for frame %i else skip %i", frame, readUInt8(f));
      break;
    }
    case SWFACTION_SETTARGET:
      println("Set Target %s", readString(f));
      break;
    case SWFACTION_GOTOLABEL:
      println("Goto Label %s", readString(f));
      break;
    case SWFACTION_END:
      return 0;
      break;

    /* f5 ops */
    case SWFACTION_DELETE:
      println("Delete");
      break;
    case SWFACTION_VAR:
      println("Var");
      break;
    case SWFACTION_VAREQUALS:
      println("Var assign");
      break;
    case SWFACTION_INITARRAY:
      println("Init array");
      break;
    case SWFACTION_INITOBJECT:
      println("Init object");
      break;
    case SWFACTION_CALLFUNCTION:
      println("call function");
      break;
    case SWFACTION_RETURN:
      println("return");
      break;
    case SWFACTION_MODULO:
      println("modulo");
      break;
    case SWFACTION_NEW:
      println("new");
      break;
    case SWFACTION_TYPEOF:
      println("typeof");
      break;
    case SWFACTION_NEWADD:
      println("new add");
      break;
    case SWFACTION_NEWLESSTHAN:
      println("new less than");
      break;
    case SWFACTION_NEWEQUALS:
      println("new equals");
      break;
    case SWFACTION_DUP:
      println("dup");
      break;
    case SWFACTION_SWAP:
      println("swap");
      break;
    case SWFACTION_GETMEMBER:
      println("get member");
      break;
    case SWFACTION_SETMEMBER:
      println("set member");
      break;
    case SWFACTION_INCREMENT:
      println("increment");
      break;
    case SWFACTION_CALLMETHOD:
      println("call method");
      break;
    case SWFACTION_BITWISEAND:
      println("bitwise and");
      break;
    case SWFACTION_BITWISEOR:
      println("bitwise or");
      break;
    case SWFACTION_BITWISEXOR:
      println("bitwise xor");
      break;
    case SWFACTION_SHIFTLEFT:
      println("shift left");
      break;
    case SWFACTION_SHIFTRIGHT:
      println("shift right");
      break;
    case SWFACTION_SHIFTRIGHT2:
      println("shift right 2");
      break;

    case SWFACTION_CONSTANTPOOL:
    {
      int i, n = readUInt16(f);
      print("declare dictionary:");

      for(i=0; i<n; ++i)
        printf(" %s%c", dictionary[i]=readString(f), (i<n-1)?',':'\n');

      break;
    }
    case SWFACTION_WITH:
    {
      println("with");

      ++gIndent;
      printDoAction(f, readUInt16(f));
      --gIndent;

      break;
    }
    case SWFACTION_DEFINEFUNCTION:
    {
      char *name = readString(f);
      int n = readUInt16(f);

      print("function ");
      print(name);
      putchar('(');

      if(n > 0)
      {
        printf("%s", readString(f));
        --n;
      }

      for(; n>0; --n)
        printf(", %s", readString(f));

      putchar(')');
      putchar('\n');

      ++gIndent;
      printDoAction(f, readUInt16(f));
      --gIndent;

      break;
    }

    case SWFACTION_ENUMERATE:
      println("enumerate");
      break;

    case SWFACTION_SETREGISTER:
      println("set register %i", readUInt8(f));
      break;

/* f6 actions */
    case SWFACTION_INSTANCEOF:
      println("instanceof");
      break;
    case SWFACTION_STRICTEQ:
      println("strict_equals");
      break;
    case SWFACTION_ENUM2:
      println("enum2");
      break;

    default:
      println("Unknown Action: %02X", type);
      dumpBytes(f, length);
  }

  return 1;
}

void printDoAction(Buffer f, int length)
{
  int end;

  if(!f)
    return;

  end = fileOffset + length;

  while(fileOffset < end && printActionRecord(f))
    ;
}

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