added actionscript disassembling
authorkramm <kramm>
Mon, 29 Oct 2001 22:07:39 +0000 (22:07 +0000)
committerkramm <kramm>
Mon, 29 Oct 2001 22:07:39 +0000 (22:07 +0000)
src/swfdump.c

index 34323c7..1d2f731 100644 (file)
@@ -33,9 +33,11 @@ char * filename = 0;
    to detect errors in the file. (i.e. ids which are defined more than \r
    once */\r
 char idtab[65536];\r
+int action = 0;\r
 \r
 struct options_t options[] =\r
 {\r
+ {"a","action"},\r
  {"v","verbose"},\r
  {"V","version"},\r
  {0,0}\r
@@ -47,6 +49,10 @@ int args_callback_option(char*name,char*val)
     if(!strcmp(name, "V")) {\r
        printf("swfdump - part of %s %s\n", PACKAGE, VERSION);\r
        exit(0);\r
+    } \r
+    else if(name[0]=='a') {\r
+       action = 1;\r
+       return 0;\r
     }\r
 }\r
 int args_callback_longoption(char*name,char*val)\r
@@ -55,7 +61,10 @@ int args_callback_longoption(char*name,char*val)
 }\r
 void args_callback_usage(char*name)\r
 {    \r
-    printf("Usage: %s file.swf\n", name);\r
+    printf("Usage: %s [-a] file.swf\n", name);\r
+    printf("-h , --help\t\t\t Print help and exit\n");\r
+    printf("-a , --action\t\t\t Disassemble action tags\n");\r
+    printf("-V , --version\t\t\t Print program version and exit\n");\r
 }\r
 int args_callback_command(char*name,char*val)\r
 {\r
@@ -66,6 +75,240 @@ int args_callback_command(char*name,char*val)
     filename = name;\r
     return 0;\r
 }\r
+\r
+struct Action\r
+{\r
+    int flashversion;\r
+    char*name;\r
+    U8 op;\r
+    char*flags;\r
+} actions[] =\r
+{\r
+/*\r
+f: frame (word)\r
+u: url (string)\r
+t: target (string)\r
+l: label (string)\r
+c: constant pool (string)\r
+s: skip (byte) (number of actions)\r
+m: method (byte) url:(0=none, 1=get, 2=post)/gf2:(1=play)\r
+b: branch (word) (number of bytes)\r
+p: type(byte), type=0:string, type=1:double\r
+{: define function (name (string), num (word), params (num strings), codesize (word)\r
+o: object (string)\r
+r: register (byte)\r
+ */\r
+{3,"GotoFrame", 0x81, "f"},\r
+{4,"GotoFrame2", 0x9f, "m"}, // -1 (/Movieclip:3)\r
+{3,"GetUrl", 0x83, "ul"},\r
+{4,"GetUrl2", 0x9a, "m"}, //-2\r
+{3,"NextFrame", 0x04, ""},\r
+{3,"PreviousFrame", 0x05, ""},\r
+{3,"Play", 0x06, ""},\r
+{3,"Stop", 0x07, ""},\r
+{3,"ToggleQuality", 0x08, ""},\r
+{3,"StopSounds", 0x09, ""},\r
+{3,"WaitForFrame", 0x8a, "fs"},\r
+{4,"WaitForFrame2", 0x8d, "s"}, // -1\r
+{3,"SetTarget", 0x8b, "t"},\r
+{4,"SetTarget2", 0x20, ""}, //-1\r
+{3,"GotoLabel", 0x8c, "l"},\r
+{4,"Add", 0x0a, ""}, //  -2, +1\r
+{4,"Multiply", 0x0c, ""}, //  -2, +1\r
+{4,"Divide", 0x0d, ""}, //  -2, +1\r
+{4,"Subtract", 0x0b, ""}, //  -2, +1\r
+{4,"Less", 0x0f, ""}, //  -2, +1\r
+{4,"Equals", 0x0e, ""}, //  -2, +1\r
+{4,"And", 0x10, ""}, //  -2, +1\r
+{4,"Or", 0x11, ""}, //  -2, +1\r
+{4,"Not", 0x12, ""}, //  -1, +1\r
+{4,"StringAdd", 0x21, ""}, // -2,+1\r
+{4,"StringLength", 0x14, ""}, // -1, +1\r
+{4,"MBStringLength", 0x31}, // -1, +1\r
+{4,"StringEquals", 0x13, ""}, // -2, +1\r
+{4,"StringLess", 0x29, ""}, //-2, +1\r
+{4,"StringExtract", 0x15, ""}, // -3, +1\r
+{4,"MBStringExtract", 0x35, ""}, //-3 +1\r
+{4,"Push", 0x96, "p"}, //  +1\r
+{4,"Pop", 0x17, ""}, //  -1\r
+{4,"ToInteger", 0x18, ""}, // -1, +1\r
+{4,"CharToAscii", 0x32, ""}, // -1, +1\r
+{4,"AsciiToChar", 0x33, ""}, // -1, +1\r
+{4,"MBCharToAscii", 0x36, ""}, // -1, +1\r
+{4,"MBAsciiToChar", 0x37, ""}, // -1, +1\r
+{4,"Jump", 0x99, "b"},\r
+{4,"If", 0x9a, "b"}, // -1\r
+{4,"Call", 0x9e, ""}, //-1 (frame label/number)\r
+{4,"GetVariable", 0x1c,""}, // -1, +1\r
+{4,"SetVariable", 0x1d,""}, // -2\r
+{4,"GetProperty", 0x22,""}, //-2, +1\r
+{4,"SetProperty", 0x23, ""}, // -3\r
+{4,"RemoveSprite", 0x25, ""}, //-1\r
+{4,"StartDrag", 0x27, ""}, // -2, -1, (-4)\r
+{4,"EndDrag", 0x28, ""}, \r
+{4,"CloneSprite", 0x24}, // -3\r
+{4,"Trace", 0x26, ""}, //-1\r
+{4,"GetTime", 0x34, ""}, //+1\r
+{4,"RandomNumber", 0x30, ""}, //-1,+1\r
+\r
+{5,"Modulo", 0x3f,""},\r
+{5,"BitAnd", 0x60,""},\r
+{5,"BitLShift", 0x63,""},\r
+{5,"BitOr", 0x61,""},\r
+{5,"BitRShift", 0x64,""},\r
+{5,"BitURShift", 0x65,""},\r
+{5,"BitXor", 0x62,""},//66?\r
+{5,"Decrement", 0x51,""},\r
+{5,"Increment", 0x50,""},\r
+{5,"PushDuplicate", 0x4c,""},\r
+{5,"StackSwap", 0x4d,""},\r
+{5,"StoreRegister", 0x87,"r"},\r
+{5,"CallFunction", 0x3d,""},\r
+{5,"DefineFunction", 0x9b, "{"},\r
+{5,"Return", 0x3e,""},\r
+{5,"GetMember", 0x4e,""},\r
+{5,"SetMember", 0x4f,""},\r
+{5,"CallMethod", 0x52,""},\r
+{5,"Constantpool", 0x88, "c"},\r
+{5,"DefineLocal", 0x3c,""},\r
+{5,"DefineLocal2", 0x41,""},\r
+{5,"Delete", 0x3a,""},\r
+{5,"Delete2", 0x3b,""},\r
+{5,"Enumerate", 0x46,""},\r
+{5,"Equals2", 0x49,""},\r
+{5,"InitArray", 0x42,""}, // InitObject?\r
+{5,"NewMethod", 0x53,""},\r
+{5,"NewObject", 0x40,""},\r
+{5,"TargetPath", 0x45,""},\r
+{5,"With", 0x94, "o"},\r
+{5,"ToNumber", 0x4a,""},\r
+{5,"ToString", 0x4b,""},\r
+{5,"TypeOf", 0x44,""},\r
+{5,"Add2", 0x47,""},\r
+{5,"Less2", 0x48,""},\r
+\r
+{5,"???", 0x9d, ""}\r
+};\r
+int definedactions = sizeof(actions)/sizeof(struct Action);\r
+\r
+struct _ActionTAG {\r
+  U8            op;\r
+  U16           len;\r
+  U8 *          data;\r
+\r
+  struct _ActionTAG * next;\r
+  struct _ActionTAG * prev;\r
+\r
+} ;\r
+typedef struct _ActionTAG ActionTAG;\r
+\r
+ActionTAG* showdoaction(TAG*tag, char*prefix) \r
+{\r
+    U8 op;\r
+    int length;\r
+    int t;\r
+    ActionTAG tmp;\r
+    ActionTAG*atag = &tmp;\r
+    U8*data;\r
+    char* cp;\r
+    while(1)\r
+    {\r
+       int pos;\r
+       atag->next = (ActionTAG*)malloc(sizeof(ActionTAG));\r
+       atag->next->prev = atag;\r
+       atag->next->next = 0;\r
+\r
+       op = GetU8(tag);\r
+       if(op<0x80)\r
+           length = 0;\r
+       else\r
+           length = GetU16(tag);\r
+\r
+       if(length) {\r
+           data = malloc(length);\r
+           for(t=0;t<length;t++)\r
+               data[t] = GetU8(tag);\r
+       } else {\r
+         data = 0;\r
+       }\r
+       atag->op = op;\r
+       atag->len = length;\r
+       atag->data = data;\r
+\r
+       if(!op) \r
+           break;\r
+\r
+       for(t=0;t<definedactions;t++)\r
+           if(actions[t].op == op)\r
+               break;\r
+\r
+       if(t==definedactions) {\r
+           printf("%s (%5d bytes) action: %02x\n", prefix, length, op);\r
+           continue;\r
+       }\r
+       printf("%s (%5d bytes) action: %s", prefix, length, actions[t].name);\r
+       cp = actions[t].flags;\r
+       pos = 0;\r
+       if(length) //TODO: check for consistency: should we have a length?\r
+       while(*cp)\r
+       {\r
+           switch(*cp)\r
+           {\r
+               case 'f': {\r
+                   printf(" %d", *(U16*)&data[pos]);pos+=2; //FIXME: le/be\r
+               } break;\r
+               case 'u': {\r
+                   printf(" URL:\"%s\"", &data[pos]);pos+=strlen(&data[pos])+1;\r
+               } break;\r
+               case 't': {\r
+                   printf(" Target:\"%s\"", &data[pos]);pos+=strlen(&data[pos])+1;\r
+               } break;\r
+               case 'l': {\r
+                   printf(" Label:\"%s\"", &data[pos]);pos+=strlen(&data[pos])+1;\r
+               } break;\r
+               case 'c': {\r
+                   printf(" Constant Pool:\"%s\"", &data[pos]);pos+=strlen(&data[pos])+1;\r
+               } break;\r
+               case 's': {\r
+                   printf(" +%d", data[pos]);pos+=1;\r
+               } break;\r
+               case 'm': {\r
+//m: method (byte) url:(0=none, 1=get, 2=post)/gf2:(1=play)\r
+                   printf(" %d", data[pos]);pos+=1;\r
+               } break;\r
+               case 'b': {\r
+                   printf(" %d", *(U16*)&data[pos]);pos+=2;\r
+               } break;\r
+               case 'p': {\r
+                   U8 type = data[pos++];\r
+                   if(type == 0) {\r
+                       printf(" String:\"%s\"", &data[pos]);pos+=strlen(&data[pos])+1;\r
+                   } else if (type == 1) {\r
+                       printf(" Double:\"%f\"", *(float*)&data[pos]);pos+=4;\r
+                   } else if (type == 2) {\r
+                       printf(" NULL");\r
+                   } else if (type == 4) {\r
+                       printf(" register:%d", data[pos++]);\r
+                   } else if (type == 5) {\r
+                       printf(" %s", data[pos++]?"true":"false");\r
+                   } else if (type == 6) {\r
+                       printf(" %f", *(double*)&data[pos]);  pos+=8;\r
+                   } else if (type == 7) {\r
+                       printf(" %d", *(int*)&data[pos]); pos+=4;\r
+                   } else if (type == 8) {\r
+                       printf(" Lookup:%d", data[pos++]);\r
+                   }\r
+               } break;\r
+           \r
+           }\r
+           cp++;\r
+       }\r
+\r
+       printf("\n");\r
+    }\r
+    printf("%s (%5d bytes) action: End\n", prefix, 0);\r
+    return tmp.next;\r
+}\r
   \r
 int main (int argc,char ** argv)\r
 { \r
@@ -114,7 +357,14 @@ int main (int argc,char ** argv)
     tag = swf.FirstTag;\r
 \r
     while(tag) {\r
+       char*name = getTagName(tag);\r
+       if(!name) {\r
+           fprintf(stderr, "Error: Unknown tag:0x%03x\n", tag->id);\r
+           tag = tag->next;\r
+           continue;\r
+       }\r
        printf("[%03x] %9d %s%s", tag->id, tag->len, prefix, getTagName(tag));\r
+\r
        if(isDefiningTag(tag)) {\r
            U16 id = GetDefineID(tag);\r
            printf(" defines id %04x", id);\r
@@ -137,14 +387,17 @@ int main (int argc,char ** argv)
        \r
        printf("\n");\r
 \r
-       if(tag->id == ST_DEFINESPRITE)\r
-       {\r
+       if(tag->id == ST_DEFINESPRITE) {\r
            sprintf(prefix, "         ");\r
        }\r
-       if(tag->id == ST_END) \r
-       {\r
+       else if(tag->id == ST_END) {\r
            sprintf(prefix, "");\r
        }\r
+       else if(tag->id == ST_DOACTION && action) {\r
+           char myprefix[128];\r
+           sprintf(myprefix, "                %s", prefix);\r
+           showdoaction(tag, myprefix);\r
+       }\r
        tag = tag->next;\r
     }\r
 \r