27Aug2021-Cpp2IL-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Utilities/Net/IPAddress.cs

using System;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Net
{
	// Token: 0x02001A18 RID: 6680
	[Token(Token = "0x2001A18")]
	public class IPAddress
	{
		// Token: 0x06009D01 RID: 40193 RVA: 0x00205C68 File Offset: 0x00203E68
		[Token(Token = "0x6009D01")]
		[Address(RVA = "0x4E9300", Offset = "0x4E8300", VA = "0x1804E9300")]
		public static bool IsValid(string address)
		{
			return IPAddress.IsValidIPv4(address) || IPAddress.IsValidIPv6(address);
		}

		// Token: 0x06009D02 RID: 40194 RVA: 0x00205C88 File Offset: 0x00203E88
		[Token(Token = "0x6009D02")]
		[Address(RVA = "0x4E91E0", Offset = "0x4E81E0", VA = "0x1804E91E0")]
		public static bool IsValidWithNetMask(string address)
		{
			int num2;
			int num = num2 + 1;
			string text = address.Substring(num);
			if (num2 > 0)
			{
				int num3 = 0;
				if (IPAddress.IsValidIPv4(address.Substring(num3, num2)) && (IPAddress.IsValidIPv4(text) || IPAddress.IsMaskValue(text, 32)))
				{
					return true;
				}
			}
			int num4;
			num2 = num4;
			int num5 = num4 + 1;
			string text2 = address.Substring(num5);
			if (num2 > 0)
			{
				int num6 = 0;
				if (!IPAddress.IsValidIPv6(address.Substring(num6, num2)))
				{
				}
			}
			IL_66:
			bool flag;
			while (flag)
			{
			}
			bool flag2;
			return flag2;
			goto IL_66;
		}

		// Token: 0x06009D03 RID: 40195 RVA: 0x00205D08 File Offset: 0x00203F08
		[Token(Token = "0x6009D03")]
		[Address(RVA = "0x4E8FA0", Offset = "0x4E7FA0", VA = "0x1804E8FA0")]
		public static bool IsValidIPv4(string address)
		{
			if (address.m_stringLength != 0)
			{
				int num = 0;
				string text = address + ".";
				if (num < text.m_stringLength)
				{
					uint num3;
					int num2 = text.IndexOf((char)num3, num);
					if (num2 > num && num != 4)
					{
						num2 -= num;
						if (int.Parse(text.Substring(num, num2)) <= 255)
						{
							num++;
						}
					}
				}
			}
			throw new NullReferenceException();
		}

		// Token: 0x06009D04 RID: 40196 RVA: 0x00205D70 File Offset: 0x00203F70
		[Token(Token = "0x6009D04")]
		[Address(RVA = "0x4E9330", Offset = "0x4E8330", VA = "0x1804E9330")]
		private static bool unsafeIsValidIPv4(string address)
		{
			if (address.m_stringLength != 0)
			{
				int num = 0;
				string text = address + ".";
				if (num < text.m_stringLength)
				{
					uint num3;
					int num2 = text.IndexOf((char)num3, num);
					if (num2 > num)
					{
						if (num == 4)
						{
							goto IL_52;
						}
						num2 -= num;
						if (int.Parse(text.Substring(num, num2)) > 255)
						{
							goto IL_52;
						}
						num++;
					}
				}
				return num == 4;
			}
			IL_52:
			throw new NullReferenceException();
		}

		// Token: 0x06009D05 RID: 40197 RVA: 0x00205DD4 File Offset: 0x00203FD4
		[Token(Token = "0x6009D05")]
		[Address(RVA = "0x4E8EE0", Offset = "0x4E7EE0", VA = "0x1804E8EE0")]
		public static bool IsValidIPv4WithNetmask(string address)
		{
			int num2;
			int num = num2 + 1;
			string text = address.Substring(num);
			if (num2 > 0)
			{
				int num3 = 0;
				if (IPAddress.IsValidIPv4(address.Substring(num3, num2)))
				{
					return IPAddress.IsValidIPv4(text) || IPAddress.IsMaskValue(text, 32);
				}
			}
			throw new NullReferenceException();
		}

		// Token: 0x06009D06 RID: 40198 RVA: 0x00205E20 File Offset: 0x00204020
		[Token(Token = "0x6009D06")]
		[Address(RVA = "0x4E90C0", Offset = "0x4E80C0", VA = "0x1804E90C0")]
		public static bool IsValidIPv6WithNetmask(string address)
		{
			int num2;
			int num = num2 + 1;
			string text = address.Substring(num);
			if (num2 > 0)
			{
				int num3 = 0;
				if (!IPAddress.IsValidIPv6(address.Substring(num3, num2)))
				{
				}
			}
			bool flag;
			bool flag2;
			return flag || flag2;
		}

		// Token: 0x06009D07 RID: 40199 RVA: 0x00205E64 File Offset: 0x00204064
		[Token(Token = "0x6009D07")]
		[Address(RVA = "0x4E8E60", Offset = "0x4E7E60", VA = "0x1804E8E60")]
		private static bool IsMaskValue(string component, int size)
		{
			return int.Parse(component) <= size;
		}

		// Token: 0x06009D08 RID: 40200 RVA: 0x00205E80 File Offset: 0x00204080
		[Token(Token = "0x6009D08")]
		[Address(RVA = "0x4E9180", Offset = "0x4E8180", VA = "0x1804E9180")]
		public static bool IsValidIPv6(string address)
		{
			return IPAddress.unsafeIsValidIPv6(address);
		}

		// Token: 0x06009D09 RID: 40201 RVA: 0x00205E98 File Offset: 0x00204098
		[Token(Token = "0x6009D09")]
		[Address(RVA = "0x4E9410", Offset = "0x4E8410", VA = "0x1804E9410")]
		private static bool unsafeIsValidIPv6(string address)
		{
			if (address.m_stringLength != 0)
			{
				int num = 0;
				string text = address + ":";
				int num2 = 0;
				if (num < text.m_stringLength)
				{
					uint num4;
					int num3 = text.IndexOf((char)num4, num);
					if (num == 8)
					{
						goto IL_C2;
					}
					int num5;
					if (num == num3)
					{
						if (num3 != 1)
						{
							int stringLength = text.m_stringLength;
						}
						if (num != num2)
						{
							goto IL_C2;
						}
						num5 = num3 + 1;
						num = num5;
						num++;
					}
					num3 -= num5;
					string text2 = text.Substring(num5, num3);
					int stringLength2 = text.m_stringLength;
					uint num6;
					int num7;
					if (num3 == stringLength2 && text2.IndexOf((char)num6) > 0)
					{
						if (!IPAddress.IsValidIPv4(text2))
						{
							goto IL_C2;
						}
						num++;
						num7 = num3 + 1;
						num++;
					}
					string text3 = text.Substring(num7, num3);
					int num8;
					if (num8 > 65535)
					{
						goto IL_C2;
					}
					num++;
				}
				return num != 8;
			}
			IL_C2:
			throw new NullReferenceException();
		}

		// Token: 0x06009D0A RID: 40202 RVA: 0x00205F6C File Offset: 0x0020416C
		[Token(Token = "0x6009D0A")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		public IPAddress()
		{
		}
	}
}