// Token: 0x06000600 RID: 1536 RVA: 0x000265DC File Offset: 0x000247DC
protected virtual void lmethod_1058(bool bool_0)
{
if (this.field_12)
{
return;
}
if (bool_0 && !this.field_13)
{
this.kmethod_1057();
this.field_15 = Class_173.WriteCentralDirectoryStructure(this.field_4, this.field_7.Values, 1U, this.field_6, this.prop_7, new Class_178(this));
Class_156 class_ = this.field_4 as Class_156;
Stream stream;
if (class_ != null)
{
stream = class_.prop_0;
class_.Dispose();
}
else
{
stream = this.field_4;
}
if (!this.field_11)
{
stream.Dispose();
}
this.field_4 = null;
}
this.field_12 = true;
}
// Token: 0x06000597 RID: 1431 RVA: 0x00025280 File Offset: 0x00023480
public static bool WriteCentralDirectoryStructure(Stream s, ICollection <Class_163> entries, uint numSegments, Class_169 zip64, string comment, Class_178 container)
{
Class_179 class_ = s as Class_179;
if (class_ != null)
{
class_.prop_0 = true;
}
long num = 0L;
using (MemoryStream memoryStream = new MemoryStream())
{
foreach (Class_163 class_2 in entries)
{
if (class_2.prop_34)
{
class_2.lmethod_718(memoryStream);
}
}
byte[] array = memoryStream.ToArray();
s.Write(array, 0, array.Length);
num = (long)array.Length;
}
Class_156 class_3 = s as Class_156;
long num2 = (class_3 != null) ? class_3.prop_7 : s.Position;
long num3 = num2 - num;
uint num4 = (class_ != null) ? class_.prop_1 : 0U;
long num5 = num2 - num3;
int num6 = Class_173.CountEntries(entries);
bool flag = zip64 == Class_169.Always || num6 >= 65535 || num5 > (long)((ulong)-1) || num3 > (long)((ulong)-1);
byte[] array3;
if (flag)
{
if (zip64 == Class_169.Default)
{
StackFrame stackFrame = new StackFrame(1);
if (stackFrame.GetMethod().DeclaringType == typeof(Class_168))
{
throw new Class_135("The archive requires a ZIP64 Central Directory. Consider setting the ZipFile.UseZip64WhenSaving property.");
}
throw new Class_135("The archive requires a ZIP64 Central Directory. Consider setting the ZipOutputStream.EnableZip64 property.");
}
else
{
byte[] array2 = Class_173.GenZip64EndOfCentralDirectory(num3, num2, num6, numSegments);
array3 = Class_173.GenCentralDirectoryFooter(num3, num2, zip64, num6, comment, container);
if (num4 != 0U)
{
uint value = class_.dmethod_1096(array2.Length + array3.Length);
int num7 = 16;
Array.Copy(BitConverter.GetBytes(value), 0, array2, num7, 4);
num7 += 4;
Array.Copy(BitConverter.GetBytes(value), 0, array2, num7, 4);
num7 = 60;
Array.Copy(BitConverter.GetBytes(value), 0, array2, num7, 4);
num7 += 4;
num7 += 8;
Array.Copy(BitConverter.GetBytes(value), 0, array2, num7, 4);
}
s.Write(array2, 0, array2.Length);
}
}
else
{
array3 = Class_173.GenCentralDirectoryFooter(num3, num2, zip64, num6, comment, container);
}
if (num4 != 0U)
{
ushort value2 = (ushort)class_.dmethod_1096(array3.Length);
int num8 = 4;
Array.Copy(BitConverter.GetBytes(value2), 0, array3, num8, 2);
num8 += 2;
Array.Copy(BitConverter.GetBytes(value2), 0, array3, num8, 2);
num8 += 2;
}
s.Write(array3, 0, array3.Length);
if (class_ != null)
{
class_.prop_0 = false;
}
return(flag);
}
