diff options
Diffstat (limited to 'Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs')
| -rw-r--r-- | Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs | 748 |
1 files changed, 382 insertions, 366 deletions
diff --git a/Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs b/Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs index 7e4d57705..b9e946b48 100644 --- a/Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs +++ b/Emby.Common.Implementations/IO/SharpCifs/Util/Encdec.cs @@ -20,382 +20,398 @@ 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) - { + 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_floatle(byte[] src, int si) + { + return (float)BitConverter.Int64BitsToDouble(Dec_uint32le(src, si)); + } - public static float Dec_floatbe(byte[] src, int 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) - { + 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) - { + 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) - { + 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) - { + 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); - } - } + } + + 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); + } + } } |