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-rw-r--r--Emby.Server.Implementations/IO/SharpCifs/Util/Encdec.cs401
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diff --git a/Emby.Server.Implementations/IO/SharpCifs/Util/Encdec.cs b/Emby.Server.Implementations/IO/SharpCifs/Util/Encdec.cs
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+++ b/Emby.Server.Implementations/IO/SharpCifs/Util/Encdec.cs
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+// This code is derived from jcifs smb client library <jcifs at samba dot org>
+// Ported by J. Arturo <webmaster at komodosoft dot net>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+using System;
+using System.IO;
+using SharpCifs.Util.Sharpen;
+
+namespace SharpCifs.Util
+{
+ public class Encdec
+ {
+ public const long MillisecondsBetween1970And1601 = 11644473600000L;
+
+ public const long SecBetweeen1904And1970 = 2082844800L;
+
+ public const int Time1970Sec32Be = 1;
+
+ public const int Time1970Sec32Le = 2;
+
+ public const int Time1904Sec32Be = 3;
+
+ public const int Time1904Sec32Le = 4;
+
+ public const int Time1601Nanos64Le = 5;
+
+ public const int Time1601Nanos64Be = 6;
+
+ public const int Time1970Millis64Be = 7;
+
+ public const int Time1970Millis64Le = 8;
+
+ public static int Enc_uint16be(short s, byte[] dst, int di)
+ {
+ dst[di++] = unchecked((byte)((s >> 8) & unchecked(0xFF)));
+ dst[di] = unchecked((byte)(s & unchecked(0xFF)));
+ return 2;
+ }
+
+ public static int Enc_uint32be(int i, byte[] dst, int di)
+ {
+ dst[di++] = unchecked((byte)((i >> 24) & unchecked(0xFF)));
+ dst[di++] = unchecked((byte)((i >> 16) & unchecked(0xFF)));
+ dst[di++] = unchecked((byte)((i >> 8) & unchecked(0xFF)));
+ dst[di] = unchecked((byte)(i & unchecked(0xFF)));
+ return 4;
+ }
+
+ public static int Enc_uint16le(short s, byte[] dst, int di)
+ {
+ dst[di++] = unchecked((byte)(s & unchecked(0xFF)));
+ dst[di] = unchecked((byte)((s >> 8) & unchecked(0xFF)));
+ return 2;
+ }
+
+ public static int Enc_uint32le(int i, byte[] dst, int di)
+ {
+ dst[di++] = unchecked((byte)(i & unchecked(0xFF)));
+ dst[di++] = unchecked((byte)((i >> 8) & unchecked(0xFF)));
+ dst[di++] = unchecked((byte)((i >> 16) & unchecked(0xFF)));
+ dst[di] = unchecked((byte)((i >> 24) & unchecked(0xFF)));
+ return 4;
+ }
+
+ public static short Dec_uint16be(byte[] src, int si)
+ {
+ return (short)(((src[si] & unchecked(0xFF)) << 8) | (src[si + 1] & unchecked(
+ 0xFF)));
+ }
+
+ public static int Dec_uint32be(byte[] src, int si)
+ {
+ return ((src[si] & unchecked(0xFF)) << 24) | ((src[si + 1] & unchecked(0xFF)) << 16) | ((src[si + 2] & unchecked(0xFF)) << 8) | (src[si + 3]
+ & unchecked(0xFF));
+ }
+
+ public static short Dec_uint16le(byte[] src, int si)
+ {
+ return (short)((src[si] & unchecked(0xFF)) | ((src[si + 1] & unchecked(0xFF)) << 8));
+ }
+
+ public static int Dec_uint32le(byte[] src, int si)
+ {
+ return (src[si] & unchecked(0xFF)) | ((src[si + 1] & unchecked(0xFF
+ )) << 8) | ((src[si + 2] & unchecked(0xFF)) << 16) | ((src[si + 3] & unchecked(
+ 0xFF)) << 24);
+ }
+
+ public static int Enc_uint64be(long l, byte[] dst, int di)
+ {
+ Enc_uint32be((int)(l & unchecked(0xFFFFFFFFL)), dst, di + 4);
+ Enc_uint32be((int)((l >> 32) & unchecked(0xFFFFFFFFL)), dst, di);
+ return 8;
+ }
+
+ public static int Enc_uint64le(long l, byte[] dst, int di)
+ {
+ Enc_uint32le((int)(l & unchecked(0xFFFFFFFFL)), dst, di);
+ Enc_uint32le((int)((l >> 32) & unchecked(0xFFFFFFFFL)), dst, di + 4);
+ return 8;
+ }
+
+ public static long Dec_uint64be(byte[] src, int si)
+ {
+ long l;
+ l = Dec_uint32be(src, si) & unchecked(0xFFFFFFFFL);
+ l <<= 32;
+ l |= Dec_uint32be(src, si + 4) & unchecked(0xFFFFFFFFL);
+ return l;
+ }
+
+ public static long Dec_uint64le(byte[] src, int si)
+ {
+ long l;
+ l = Dec_uint32le(src, si + 4) & unchecked(0xFFFFFFFFL);
+ l <<= 32;
+ l |= Dec_uint32le(src, si) & unchecked(0xFFFFFFFFL);
+ return l;
+ }
+
+ public static int Enc_floatle(float f, byte[] dst, int di)
+ {
+ return Enc_uint32le((int)BitConverter.DoubleToInt64Bits(f), dst, di);
+ }
+
+ public static int Enc_floatbe(float f, byte[] dst, int di)
+ {
+ return Enc_uint32be((int)BitConverter.DoubleToInt64Bits(f), dst, di);
+ }
+
+ public static float Dec_floatle(byte[] src, int si)
+ {
+ return (float)BitConverter.Int64BitsToDouble(Dec_uint32le(src, si));
+ }
+
+ public static float Dec_floatbe(byte[] src, int si)
+ {
+ return (float)BitConverter.Int64BitsToDouble(Dec_uint32be(src, si));
+ }
+
+ public static int Enc_doublele(double d, byte[] dst, int di)
+ {
+ return Enc_uint64le(BitConverter.DoubleToInt64Bits(d), dst, di);
+ }
+
+ public static int Enc_doublebe(double d, byte[] dst, int di)
+ {
+ return Enc_uint64be(BitConverter.DoubleToInt64Bits(d), dst, di);
+ }
+
+ public static double Dec_doublele(byte[] src, int si)
+ {
+ return BitConverter.Int64BitsToDouble(Dec_uint64le(src, si));
+ }
+
+ public static double Dec_doublebe(byte[] src, int si)
+ {
+ return BitConverter.Int64BitsToDouble(Dec_uint64be(src, si));
+ }
+
+ public static int Enc_time(DateTime date, byte[] dst, int di, int enc)
+ {
+ long t;
+ switch (enc)
+ {
+ case Time1970Sec32Be:
+ {
+ return Enc_uint32be((int)(date.GetTime() / 1000L), dst, di);
+ }
+
+ case Time1970Sec32Le:
+ {
+ return Enc_uint32le((int)(date.GetTime() / 1000L), dst, di);
+ }
+
+ case Time1904Sec32Be:
+ {
+ return Enc_uint32be((int)((date.GetTime() / 1000L + SecBetweeen1904And1970) &
+ unchecked((int)(0xFFFFFFFF))), dst, di);
+ }
+
+ case Time1904Sec32Le:
+ {
+ return Enc_uint32le((int)((date.GetTime() / 1000L + SecBetweeen1904And1970) &
+ unchecked((int)(0xFFFFFFFF))), dst, di);
+ }
+
+ case Time1601Nanos64Be:
+ {
+ t = (date.GetTime() + MillisecondsBetween1970And1601) * 10000L;
+ return Enc_uint64be(t, dst, di);
+ }
+
+ case Time1601Nanos64Le:
+ {
+ t = (date.GetTime() + MillisecondsBetween1970And1601) * 10000L;
+ return Enc_uint64le(t, dst, di);
+ }
+
+ case Time1970Millis64Be:
+ {
+ return Enc_uint64be(date.GetTime(), dst, di);
+ }
+
+ case Time1970Millis64Le:
+ {
+ return Enc_uint64le(date.GetTime(), dst, di);
+ }
+
+ default:
+ {
+ throw new ArgumentException("Unsupported time encoding");
+ }
+ }
+ }
+
+ public static DateTime Dec_time(byte[] src, int si, int enc)
+ {
+ long t;
+ switch (enc)
+ {
+ case Time1970Sec32Be:
+ {
+ return Sharpen.Extensions.CreateDate(Dec_uint32be(src, si) * 1000L);
+ }
+
+ case Time1970Sec32Le:
+ {
+ return Sharpen.Extensions.CreateDate(Dec_uint32le(src, si) * 1000L);
+ }
+
+ case Time1904Sec32Be:
+ {
+ return Sharpen.Extensions.CreateDate(((Dec_uint32be(src, si) & unchecked(0xFFFFFFFFL)) - SecBetweeen1904And1970) * 1000L);
+ }
+
+ case Time1904Sec32Le:
+ {
+ return Sharpen.Extensions.CreateDate(((Dec_uint32le(src, si) & unchecked(0xFFFFFFFFL)) - SecBetweeen1904And1970) * 1000L);
+ }
+
+ case Time1601Nanos64Be:
+ {
+ t = Dec_uint64be(src, si);
+ return Sharpen.Extensions.CreateDate(t / 10000L - MillisecondsBetween1970And1601
+ );
+ }
+
+ case Time1601Nanos64Le:
+ {
+ t = Dec_uint64le(src, si);
+ return Sharpen.Extensions.CreateDate(t / 10000L - MillisecondsBetween1970And1601
+ );
+ }
+
+ case Time1970Millis64Be:
+ {
+ return Sharpen.Extensions.CreateDate(Dec_uint64be(src, si));
+ }
+
+ case Time1970Millis64Le:
+ {
+ return Sharpen.Extensions.CreateDate(Dec_uint64le(src, si));
+ }
+
+ default:
+ {
+ throw new ArgumentException("Unsupported time encoding");
+ }
+ }
+ }
+
+ /// <exception cref="System.IO.IOException"></exception>
+ public static int Enc_utf8(string str, byte[] dst, int di, int dlim)
+ {
+ int start = di;
+ int ch;
+ int strlen = str.Length;
+ for (int i = 0; di < dlim && i < strlen; i++)
+ {
+ ch = str[i];
+ if ((ch >= unchecked(0x0001)) && (ch <= unchecked(0x007F)))
+ {
+ dst[di++] = unchecked((byte)ch);
+ }
+ else
+ {
+ if (ch > unchecked(0x07FF))
+ {
+ if ((dlim - di) < 3)
+ {
+ break;
+ }
+ dst[di++] = unchecked((byte)(unchecked(0xE0) | ((ch >> 12) & unchecked(0x0F))));
+ dst[di++] = unchecked((byte)(unchecked(0x80) | ((ch >> 6) & unchecked(0x3F))));
+ dst[di++] = unchecked((byte)(unchecked(0x80) | ((ch >> 0) & unchecked(0x3F))));
+ }
+ else
+ {
+ if ((dlim - di) < 2)
+ {
+ break;
+ }
+ dst[di++] = unchecked((byte)(unchecked(0xC0) | ((ch >> 6) & unchecked(0x1F))));
+ dst[di++] = unchecked((byte)(unchecked(0x80) | ((ch >> 0) & unchecked(0x3F))));
+ }
+ }
+ }
+ return di - start;
+ }
+
+ /// <exception cref="System.IO.IOException"></exception>
+ public static string Dec_utf8(byte[] src, int si, int slim)
+ {
+ char[] uni = new char[slim - si];
+ int ui;
+ int ch;
+ for (ui = 0; si < slim && (ch = src[si++] & unchecked(0xFF)) != 0; ui++)
+ {
+ if (ch < unchecked(0x80))
+ {
+ uni[ui] = (char)ch;
+ }
+ else
+ {
+ if ((ch & unchecked(0xE0)) == unchecked(0xC0))
+ {
+ if ((slim - si) < 2)
+ {
+ break;
+ }
+ uni[ui] = (char)((ch & unchecked(0x1F)) << 6);
+ ch = src[si++] & unchecked(0xFF);
+ uni[ui] |= (char)((char)ch & unchecked(0x3F));
+ if ((ch & unchecked(0xC0)) != unchecked(0x80) || uni[ui] < unchecked(
+ 0x80))
+ {
+ throw new IOException("Invalid UTF-8 sequence");
+ }
+ }
+ else
+ {
+ if ((ch & unchecked(0xF0)) == unchecked(0xE0))
+ {
+ if ((slim - si) < 3)
+ {
+ break;
+ }
+ uni[ui] = (char)((ch & unchecked(0x0F)) << 12);
+ ch = src[si++] & unchecked(0xFF);
+ if ((ch & unchecked(0xC0)) != unchecked(0x80))
+ {
+ throw new IOException("Invalid UTF-8 sequence");
+ }
+ uni[ui] |= (char)((char)(ch & unchecked(0x3F)) << 6);
+ ch = src[si++] & unchecked(0xFF);
+ uni[ui] |= (char)((char)ch & unchecked(0x3F));
+ if ((ch & unchecked(0xC0)) != unchecked(0x80) || uni[ui] < unchecked(
+ 0x800))
+ {
+ throw new IOException("Invalid UTF-8 sequence");
+ }
+ }
+ else
+ {
+ throw new IOException("Unsupported UTF-8 sequence");
+ }
+ }
+ }
+ }
+ return new string(uni, 0, ui);
+ }
+
+ /// <exception cref="System.IO.IOException"></exception>
+ public static string Dec_ucs2le(byte[] src, int si, int slim, char[] buf)
+ {
+ int bi;
+ for (bi = 0; (si + 1) < slim; bi++, si += 2)
+ {
+ buf[bi] = (char)Dec_uint16le(src, si);
+ if (buf[bi] == '\0')
+ {
+ break;
+ }
+ }
+ return new string(buf, 0, bi);
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-07 10:20:24 +0000