using System;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Net
{
	// Token: 0x02001938 RID: 6456
	[Token(Token = "0x2001938")]
	public class IPAddress
	{
		// Token: 0x06009933 RID: 39219 RVA: 0x001FCBD0 File Offset: 0x001FADD0
		[Token(Token = "0x6009933")]
		[Address(RVA = "0x18DF7D0", Offset = "0x18DE5D0", VA = "0x1818DF7D0")]
		public static bool IsValid(string address)
		{
			return IPAddress.IsValidIPv4(address) || IPAddress.IsValidIPv6(address);
		}

		// Token: 0x06009934 RID: 39220 RVA: 0x001FCBF0 File Offset: 0x001FADF0
		[Token(Token = "0x6009934")]
		[Address(RVA = "0x18DF6B0", Offset = "0x18DE4B0", VA = "0x1818DF6B0")]
		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: 0x06009935 RID: 39221 RVA: 0x001FCC70 File Offset: 0x001FAE70
		[Token(Token = "0x6009935")]
		[Address(RVA = "0x18DF470", Offset = "0x18DE270", VA = "0x1818DF470")]
		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: 0x06009936 RID: 39222 RVA: 0x001FCCD8 File Offset: 0x001FAED8
		[Token(Token = "0x6009936")]
		[Address(RVA = "0x18DF800", Offset = "0x18DE600", VA = "0x1818DF800")]
		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: 0x06009937 RID: 39223 RVA: 0x001FCD3C File Offset: 0x001FAF3C
		[Token(Token = "0x6009937")]
		[Address(RVA = "0x18DF3B0", Offset = "0x18DE1B0", VA = "0x1818DF3B0")]
		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: 0x06009938 RID: 39224 RVA: 0x001FCD88 File Offset: 0x001FAF88
		[Token(Token = "0x6009938")]
		[Address(RVA = "0x18DF590", Offset = "0x18DE390", VA = "0x1818DF590")]
		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: 0x06009939 RID: 39225 RVA: 0x001FCDCC File Offset: 0x001FAFCC
		[Token(Token = "0x6009939")]
		[Address(RVA = "0x18DF330", Offset = "0x18DE130", VA = "0x1818DF330")]
		private static bool IsMaskValue(string component, int size)
		{
			return int.Parse(component) <= size;
		}

		// Token: 0x0600993A RID: 39226 RVA: 0x001FCDE8 File Offset: 0x001FAFE8
		[Token(Token = "0x600993A")]
		[Address(RVA = "0x18DF650", Offset = "0x18DE450", VA = "0x1818DF650")]
		public static bool IsValidIPv6(string address)
		{
			return IPAddress.unsafeIsValidIPv6(address);
		}

		// Token: 0x0600993B RID: 39227 RVA: 0x001FCE00 File Offset: 0x001FB000
		[Token(Token = "0x600993B")]
		[Address(RVA = "0x18DF8E0", Offset = "0x18DE6E0", VA = "0x1818DF8E0")]
		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: 0x0600993C RID: 39228 RVA: 0x001FCED4 File Offset: 0x001FB0D4
		[Token(Token = "0x600993C")]
		[Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")]
		public IPAddress()
		{
		}
	}
}