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[ArchiveTools] Fix size handling for TGZ

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This commit is contained in:
Matt Nadareski
2016-08-17 16:17:10 -07:00
parent cefd9135d8
commit d4342059c2
1 changed files with 13 additions and 14 deletions
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27
SabreTools.Helper/Tools/ArchiveTools.cs
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@@ -507,7 +507,7 @@ namespace SabreTools.Helper
{
string datum = Path.GetFileName(input).ToLowerInvariant();
long filesize = new FileInfo(input).Length;
// Check if the name is the right length
if (!Regex.IsMatch(datum, @"^[0-9a-f]{40}\.gz"))
{
@@ -516,32 +516,31 @@ namespace SabreTools.Helper
}
// Check if the file is at least the minimum length
if (filesize < 36 /* bytes */)
if (filesize < 40 /* bytes */)
{
logger.Warning("Possibly corrupt file '" + input + "' with size " + Style.GetBytesReadable(filesize));
return new Rom();
}
// Get the Romba-specific header data
byte[] header; // MD5 and CRC
byte[] headersz; // MSB of long-size
byte[] footer; // Internal CRC and isize
byte[] headermd5; // MD5
byte[] headercrc; // CRC
byte[] headersz; // Int64 size
using (FileStream itemstream = File.OpenRead(input))
{
using (BinaryReader br = new BinaryReader(itemstream))
{
header = br.ReadBytes(32);
headersz = br.ReadBytes(4);
br.BaseStream.Seek(-4, SeekOrigin.End);
footer = br.ReadBytes(4);
br.BaseStream.Seek(12, SeekOrigin.Begin);
headermd5 = br.ReadBytes(16);
headercrc = br.ReadBytes(4);
headersz = br.ReadBytes(8);
}
}
// Now convert the data and get the right positions
string headerstring = BitConverter.ToString(header).Replace("-", string.Empty);
string gzmd5 = headerstring.Substring(24, 32);
string gzcrc = headerstring.Substring(56, 8);
string gzsize = BitConverter.ToString(headersz.Reverse().ToArray()).Replace("-", string.Empty) + BitConverter.ToString(footer.Reverse().ToArray()).Replace("-", string.Empty);
// Now convert the data and get the right position
string gzmd5 = BitConverter.ToString(headermd5).Replace("-", string.Empty);
string gzcrc = BitConverter.ToString(headercrc).Replace("-", string.Empty);
string gzsize = BitConverter.ToString(headersz.Reverse().ToArray()).Replace("-", string.Empty);
long extractedsize = Convert.ToInt64(gzsize, 16);
Rom rom = new Rom