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Made handling of any file size possible

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Given that they are not zero of course, because that means no file.
This commit is contained in:
Villermen 2014-11-21 19:03:38 +01:00
parent 1361a5974b
commit e93ea24283
1 changed files with 10 additions and 11 deletions
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21
Program.cs
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@ -121,9 +121,8 @@ namespace RSCacheTool
long startChunkOffset = indexFile.ReadBytes(3) * 520L; long startChunkOffset = indexFile.ReadBytes(3) * 520L;
//Console.WriteLine("New file: archive: {0} file: {1} offset: {3} size: {2}", archiveIndex, fileIndex, fileSize, startChunkOffset); //Console.WriteLine("New file: archive: {0} file: {1} offset: {3} size: {2}", archiveIndex, fileIndex, fileSize, startChunkOffset);
//filter teeny tiny files (<=1kB) because they gobble up time if (fileSize > 0 && startChunkOffset > 0 && startChunkOffset + fileSize <= cacheFile.Length)
if (fileSize > 1024 && startChunkOffset > 0 && startChunkOffset + fileSize <= cacheFile.Length)
{ {
byte[] buffer = new byte[fileSize]; byte[] buffer = new byte[fileSize];
int writeOffset = 0; int writeOffset = 0;
@ -180,7 +179,7 @@ namespace RSCacheTool
byte[] tempBuffer; byte[] tempBuffer;
//decompress gzip //decompress gzip
if ((buffer[9] << 8) + buffer[10] == 0x1f8b) //gzip if (buffer.Length > 10 && (buffer[9] << 8) + buffer[10] == 0x1f8b) //gzip
{ {
//remove the first 9 bytes cause they seem to be descriptors of sorts (no idea what they do but they are not part of the file) //remove the first 9 bytes cause they seem to be descriptors of sorts (no idea what they do but they are not part of the file)
tempBuffer = new byte[fileSize - 9]; tempBuffer = new byte[fileSize - 9];
@ -209,7 +208,7 @@ namespace RSCacheTool
} }
//decompress bzip2 //decompress bzip2
if (buffer[9] == 0x31 && buffer[10] == 0x41 && buffer[11] == 0x59 && buffer[12] == 0x26 && buffer[13] == 0x53 && buffer[14] == 0x59) //bzip2 if (buffer.Length > 14 && buffer[9] == 0x31 && buffer[10] == 0x41 && buffer[11] == 0x59 && buffer[12] == 0x26 && buffer[13] == 0x53 && buffer[14] == 0x59) //bzip2
{ {
//remove the first 9 bytes cause they seem to be descriptors of sorts (no idea what they do but they are not part of the file) //remove the first 9 bytes cause they seem to be descriptors of sorts (no idea what they do but they are not part of the file)
tempBuffer = new byte[fileSize - 9]; tempBuffer = new byte[fileSize - 9];
@ -250,11 +249,11 @@ namespace RSCacheTool
} }
//detect ogg: OggS //detect ogg: OggS
if ((buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x4f676753) if (buffer.Length > 3 && (buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x4f676753)
outFileName += ".ogg"; outFileName += ".ogg";
//detect ogg: 5 bytes - OggS //detect ogg: 5 bytes - OggS
if ((buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x4f676753) if (buffer.Length > 8 && (buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x4f676753)
{ {
tempBuffer = new byte[fileSize - 5]; tempBuffer = new byte[fileSize - 5];
Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5); Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5);
@ -264,11 +263,11 @@ namespace RSCacheTool
} }
//detect jag: JAGA //detect jag: JAGA
if ((buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x4a414741) if (buffer.Length > 3 && (buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x4a414741)
outFileName += ".jaga"; outFileName += ".jaga";
//detect jag: 5 bytes - JAGA //detect jag: 5 bytes - JAGA
if ((buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x4a414741) if (buffer.Length > 8 && (buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x4a414741)
{ {
tempBuffer = new byte[fileSize - 5]; tempBuffer = new byte[fileSize - 5];
Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5); Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5);
@ -278,11 +277,11 @@ namespace RSCacheTool
} }
//detect png: .PNG //detect png: .PNG
if ((uint)(buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x89504e47) if (buffer.Length > 3 && (uint)(buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] == 0x89504e47)
outFileName += ".png"; outFileName += ".png";
//detect png: 5 bytes - .PNG //detect png: 5 bytes - .PNG
if ((uint)(buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x89504e47) if (buffer.Length > 8 && (uint)(buffer[5] << 24) + (buffer[6] << 16) + (buffer[7] << 8) + buffer[8] == 0x89504e47)
{ {
tempBuffer = new byte[fileSize - 5]; tempBuffer = new byte[fileSize - 5];
Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5); Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5);