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Wii Savegame Parser (view source)

Revision as of 23:24, 26 February 2007

6,041 bytes added ,  23:24, 26 February 2007
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Line 221: Line 221:  
}
 
}
 
  </nowiki>
 
  </nowiki>
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=C Code=
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This is C code translation of the Perl script above.  It may contain bugs, it was only tested on one game save file.  If you find any errors, please edit the code with the fixes.  Thanks, Advant.
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 +
#ifdef WIN32
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#define _CRT_SECURE_NO_DEPRECATE
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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unsigned long readLongChk(char * name, unsigned long chk);
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void readBlock(char * title, unsigned long len, char * filename);
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void readByteChk(char * name, unsigned char chk);
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unsigned long findEndOfHeader();
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unsigned long readLong(char * name);
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unsigned long address = 0;
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FILE * fp = NULL;
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char read_String[256] = {0};
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int main(int argc, char * argv[])
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{
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  char filename[256] = {0}; 
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  char title[256] = {0};
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  unsigned long filesize = 0;
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  unsigned long files = 0;
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  unsigned long i = 0;
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  if(argc < 2)
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  {
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    printf("Usage: wii-parse filename.bin\n");
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    return 0;
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  }
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  fp = fopen(argv[1], "r+b");
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  if(fp == NULL)
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  { printf("Error:  Unable to open %s\n", argv[1]); return -1;}
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  findEndOfHeader();
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  readLong("WiiID:");
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  files = readLong("Number of files");
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  readLong("FileDataLen");
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  readLongChk("Magic",0x00000000);
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  readLongChk("Magic",0x00000000);
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  readLong("PostHeadLen");
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  readBlock("Zeros",64,0);
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  readLongChk("Magic",0x00010000);
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  readLong("PrgID");
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  readLong("MacAdd");
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  readLongChk("Magic",0xF5550000); 
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  sprintf(filename,"%s.hash1\0",argv[1],i+1);
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  readBlock("Hash1",16,filename); 
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  for(i = 0; i < files; i++)
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  {
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    sprintf(title,"Magic%d",i);
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    readLong(title,0x03ADF17E);
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    sprintf(title,"Filesize%d",i);
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    filesize = readLong(title);
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    sprintf(title,"Magic%d",i);
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    readByteChk(title,0x34);
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    readByteChk(title,0x00);
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    readByteChk(title,0x01);
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    sprintf(title,"Filename%d",i);
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    readString(title);
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    sprintf(filename,"%s.f%dsfille\0",argv[1],i+1);
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    readBlock("StrFiller",117-strlen(read_String)-1,filename);
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    sprintf(filename,"%s.f%ddata\0",argv[1],i+1);
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    readBlock("Filedata",filesize,filename);
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    sprintf(filename,"%s.f%ddfill\0",argv[1],i+1);
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    readBlock("DataFiller",filesize % 64,filename);
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  }
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  sprintf(filename,"%s.hash2\0",argv[1]);
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  readBlock("Hash2",60,filename); 
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  readLongChk("Magic",0x00000000);
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  readLongChk("Magic",0x00010002);
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  sprintf(filename,"%s.hash3\0",argv[1]);
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  readBlock("Hash3",60,filename);
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  readBlock("Zeros",64,0);
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  readString("RootCA");
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  readBlock("Zeros",64-strlen(read_String)-1,0);
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  readLongChk("Magic",0x00000002);
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  readString("NG");
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  readBlock("Zeros",64-strlen(read_String)-1,0);
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  sprintf(filename,"%s.hash4\0",argv[1]);
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  readBlock("Hash4",64,filename);
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  readBlock("Zeros",60,0);
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  readLongChk("Magic",0x00010002);
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  sprintf(filename,"%s.hash5\0",argv[1]);
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  readBlock("Hash5",60,filename);
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  readBlock("Zeros",64,0); 
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  readString("RootCA-MS-NG");
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  readBlock("Zeros",64-strlen(read_String) - 1,0);
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  readLongChk("Magic",0x00000002);
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  readString("AP");
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  readBlock("Zeros",64-strlen(read_String) - 1,0);
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  readLongChk("Magic",0x00000000);
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  sprintf(filename,"%s.hash6\0",argv[1]);
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  readBlock("Hash6",60,filename);
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}
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unsigned int readString(char *title)
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{
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    char data[80] = {0};
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    unsigned int bytes_read = 0;
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    bytes_read = fread(&data,80,sizeof(unsigned char), fp);
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    strcpy(read_String,data);
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    printf("0x%.8x | String %s ends after %uL bytes \"%s\"\n", address,title, strlen(read_String),read_String);
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    fseek(fp,address+strlen(read_String)+1,SEEK_SET);
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    address += strlen(read_String)+1;
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}
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unsigned long findEndOfHeader()
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{
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    unsigned char buffer[64] = {0};
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    unsigned long location = 0;
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    int bytes_read = -1;
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    unsigned char chk_buffer[16] = {0x00,0x00,0x00,0x70,0x42,0x6B,0x00,0x01};
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  do
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  {
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    if(bytes_read == 0)
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    { printf("Error:  Unable to locate end of header!\n"); exit(0);}
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    bytes_read = fread(buffer,sizeof(unsigned char),64,fp);
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    location += 64;
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  }
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  while(memcmp(buffer,chk_buffer,8) != 0);
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  location -= 64;
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  printf("Header offset: 0x%.8x\n", location);
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  fseek(fp,location + 8, SEEK_SET);
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  address = location + 8;
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}
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void readByteChk(char * name, unsigned char chk)
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{
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    unsigned char data[1] = {0}; 
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    fread(&data,1,sizeof(unsigned char), fp);
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    if(data[0] != chk)
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    { printf("0x%.8x |  %s 0x%.2x (%uL)...Check failed!\n",address, name,data[0],data[0]);}
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    else{printf("0x%.8x |  %s 0x%.2x (%uL)...Check passed!\n",address, name,data[0],data[0]);}
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    address += 1;
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}
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void readBlock(char * title, unsigned long len, char * filename)
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{
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    FILE * fp2 = 0;
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    unsigned char * data = calloc(len,sizeof(unsigned char));
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    unsigned long bytes_read = 0;
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    bytes_read = fread(data,len,sizeof(unsigned char), fp);
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    printf("0x%.8x | Block  %s ends after %uL bytes\n", address,title,len);
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    address += len;
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    if(filename > 0)
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    {
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        fp2 = fopen(filename,"w+b");
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        fwrite(data,sizeof(unsigned char),len*bytes_read,fp2);
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        fclose(fp2);
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    }
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}
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unsigned long readLongChk(char * name, unsigned long chk)
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{
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    unsigned long dataL = 0;
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    unsigned char data[4] = {0}; 
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    fread(&data,4,sizeof(unsigned char), fp);
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    dataL += data[0];
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    dataL = dataL << 8;
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    dataL += data[1];
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    dataL = dataL << 8;
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    dataL += data[2];
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    dataL = dataL << 8;
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    dataL += data[3];
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    if(dataL != chk)
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    {printf("0x%.8x |  %s 0x%.8x != 0x%.8x...Check failed!\n",address, name,dataL,chk); }
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    else{printf("0x%.8x |  %s 0x%.8x (%uL)...Check passed!\n",address, name,dataL,dataL);}
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    address += 4;
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    return dataL;
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}
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unsigned long readLong(char * name)
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{
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    unsigned long dataL = 0;
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    unsigned char data[4] = {0};
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    fread(&data,4,sizeof(unsigned char), fp);
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    dataL += data[0];
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    dataL = dataL << 8;
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    dataL += data[1];
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    dataL = dataL << 8;
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    dataL += data[2];
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    dataL = dataL << 8;
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    dataL += data[3];
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    printf("0x%.8x |  %s 0x%.8x (%uL)\n", address,name,dataL,dataL);
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    address += 4;
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    return dataL;
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}
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