diff --git a/Program.cs b/Program.cs index ff3ad40..c8ff8dc 100644 --- a/Program.cs +++ b/Program.cs @@ -121,9 +121,8 @@ namespace RSCacheTool long startChunkOffset = indexFile.ReadBytes(3) * 520L; //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 > 1024 && startChunkOffset > 0 && startChunkOffset + fileSize <= cacheFile.Length) + + if (fileSize > 0 && startChunkOffset > 0 && startChunkOffset + fileSize <= cacheFile.Length) { byte[] buffer = new byte[fileSize]; int writeOffset = 0; @@ -180,7 +179,7 @@ namespace RSCacheTool byte[] tempBuffer; //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) tempBuffer = new byte[fileSize - 9]; @@ -209,7 +208,7 @@ namespace RSCacheTool } //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) tempBuffer = new byte[fileSize - 9]; @@ -250,11 +249,11 @@ namespace RSCacheTool } //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"; //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]; Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5); @@ -264,11 +263,11 @@ namespace RSCacheTool } //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"; //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]; Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5); @@ -278,11 +277,11 @@ namespace RSCacheTool } //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"; //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]; Array.Copy(buffer, 5, tempBuffer, 0, fileSize - 5);