|
private static GetEncoding ( |
||
| container | ||
| t | string | |
| return | System.Text.Encoding | |
// Token: 0x0600051D RID: 1309 RVA: 0x00025244 File Offset: 0x00023444
private static byte[] GenCentralDirectoryFooter(long StartOfCentralDirectory, long EndOfCentralDirectory, Zip64Option zip64, int entryCount, string comment, ZipContainer container)
{
Encoding encoding = ZipOutput.GetEncoding(container, comment);
int num = 22;
byte[] array = null;
short num2 = 0;
if (comment != null && comment.Length != 0)
{
array = encoding.GetBytes(comment);
num2 = (short)array.Length;
}
num += (int)num2;
byte[] array2 = new byte[num];
int num3 = 0;
byte[] bytes = BitConverter.GetBytes(101010256u);
Array.Copy(bytes, 0, array2, num3, 4);
num3 += 4;
array2[num3++] = 0;
array2[num3++] = 0;
array2[num3++] = 0;
array2[num3++] = 0;
if (entryCount >= 65535 || zip64 == Zip64Option.Always)
{
for (int i = 0; i < 4; i++)
{
array2[num3++] = byte.MaxValue;
}
}
else
{
array2[num3++] = (byte)(entryCount & 255);
array2[num3++] = (byte)((entryCount & 65280) >> 8);
array2[num3++] = (byte)(entryCount & 255);
array2[num3++] = (byte)((entryCount & 65280) >> 8);
}
long num4 = EndOfCentralDirectory - StartOfCentralDirectory;
if (num4 >= (long)((ulong)-1) || StartOfCentralDirectory >= (long)((ulong)-1))
{
for (int i = 0; i < 8; i++)
{
array2[num3++] = byte.MaxValue;
}
}
else
{
array2[num3++] = (byte)(num4 & 255L);
array2[num3++] = (byte)((num4 & 65280L) >> 8);
array2[num3++] = (byte)((num4 & 16711680L) >> 16);
array2[num3++] = (byte)((num4 & (long)((ulong)-16777216)) >> 24);
array2[num3++] = (byte)(StartOfCentralDirectory & 255L);
array2[num3++] = (byte)((StartOfCentralDirectory & 65280L) >> 8);
array2[num3++] = (byte)((StartOfCentralDirectory & 16711680L) >> 16);
array2[num3++] = (byte)((StartOfCentralDirectory & (long)((ulong)-16777216)) >> 24);
}
if (comment == null || comment.Length == 0)
{
array2[num3++] = 0;
array2[num3++] = 0;
}
else
{
if ((int)num2 + num3 + 2 > array2.Length)
{
num2 = (short)(array2.Length - num3 - 2);
}
array2[num3++] = (byte)(num2 & 255);
array2[num3++] = (byte)(((int)num2 & 65280) >> 8);
if (num2 != 0)
{
int i = 0;
while (i < (int)num2 && num3 + i < array2.Length)
{
array2[num3 + i] = array[i];
i++;
}
num3 += i;
}
}
return(array2);
}
// Token: 0x060005F6 RID: 1526 RVA: 0x00039A20 File Offset: 0x00037C20
private static byte[] GenCentralDirectoryFooter(long StartOfCentralDirectory, long EndOfCentralDirectory, Zip64Option zip64, int entryCount, string comment, ZipContainer container)
{
Encoding encoding = ZipOutput.GetEncoding(container, comment);
int num = 22;
byte[] array = null;
short num2 = 0;
if (comment != null && comment.Length != 0)
{
array = encoding.GetBytes(comment);
num2 = (short)array.Length;
}
num += (int)num2;
byte[] array2 = new byte[num];
byte[] bytes = BitConverter.GetBytes(101010256U);
Array.Copy(bytes, 0, array2, 0, 4);
array2[4] = 0;
array2[5] = 0;
array2[6] = 0;
byte[] array3 = array2;
int num3 = 7;
int num4 = 8;
array3[num3] = 0;
if (entryCount < 65535)
{
if (zip64 != Zip64Option.Always)
{
array2[num4++] = (byte)(entryCount & 255);
array2[num4++] = (byte)((entryCount & 65280) >> 8);
array2[num4++] = (byte)(entryCount & 255);
array2[num4++] = (byte)((entryCount & 65280) >> 8);
goto IL_F2;
}
}
for (int i = 0; i < 4; i++)
{
array2[num4++] = byte.MaxValue;
}
IL_F2:
long num5 = EndOfCentralDirectory - StartOfCentralDirectory;
if (num5 < 4294967295L && StartOfCentralDirectory < 4294967295L)
{
array2[num4++] = (byte)(num5 & 255L);
array2[num4++] = (byte)((num5 & 65280L) >> 8);
array2[num4++] = (byte)((num5 & 16711680L) >> 16);
array2[num4++] = (byte)((num5 & 4278190080L) >> 24);
array2[num4++] = (byte)(StartOfCentralDirectory & 255L);
array2[num4++] = (byte)((StartOfCentralDirectory & 65280L) >> 8);
array2[num4++] = (byte)((StartOfCentralDirectory & 16711680L) >> 16);
array2[num4++] = (byte)((StartOfCentralDirectory & 4278190080L) >> 24);
}
else
{
for (int i = 0; i < 8; i++)
{
array2[num4++] = byte.MaxValue;
}
}
if (comment != null && comment.Length != 0)
{
if ((int)num2 + num4 + 2 > array2.Length)
{
num2 = (short)(array2.Length - num4 - 2);
}
array2[num4++] = (byte)(num2 & 255);
array2[num4++] = (byte)(((int)num2 & 65280) >> 8);
if (num2 != 0)
{
int i = 0;
while (i < (int)num2 && num4 + i < array2.Length)
{
array2[num4 + i] = array[i];
i++;
}
num4 += i;
}
}
else
{
array2[num4++] = 0;
array2[num4++] = 0;
}
return(array2);
}
