mirror of https://gitee.com/openkylin/linux.git
91 lines
4.0 KiB
C
91 lines
4.0 KiB
C
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/*
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* upcase.c - Generate the full NTFS Unicode upcase table in little endian.
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* Part of the Linux-NTFS project.
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*
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* Copyright (c) 2001 Richard Russon <ntfs@flatcap.org>
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* Copyright (c) 2001-2004 Anton Altaparmakov
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*
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* Modified for mkntfs inclusion 9 June 2001 by Anton Altaparmakov.
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* Modified for kernel inclusion 10 September 2001 by Anton Altparmakov.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (in the main directory of the Linux-NTFS source
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* in the file COPYING); if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "malloc.h"
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#include "ntfs.h"
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ntfschar *generate_default_upcase(void)
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{
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static const int uc_run_table[][3] = { /* Start, End, Add */
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{0x0061, 0x007B, -32}, {0x0451, 0x045D, -80}, {0x1F70, 0x1F72, 74},
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{0x00E0, 0x00F7, -32}, {0x045E, 0x0460, -80}, {0x1F72, 0x1F76, 86},
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{0x00F8, 0x00FF, -32}, {0x0561, 0x0587, -48}, {0x1F76, 0x1F78, 100},
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{0x0256, 0x0258, -205}, {0x1F00, 0x1F08, 8}, {0x1F78, 0x1F7A, 128},
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{0x028A, 0x028C, -217}, {0x1F10, 0x1F16, 8}, {0x1F7A, 0x1F7C, 112},
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{0x03AC, 0x03AD, -38}, {0x1F20, 0x1F28, 8}, {0x1F7C, 0x1F7E, 126},
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{0x03AD, 0x03B0, -37}, {0x1F30, 0x1F38, 8}, {0x1FB0, 0x1FB2, 8},
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{0x03B1, 0x03C2, -32}, {0x1F40, 0x1F46, 8}, {0x1FD0, 0x1FD2, 8},
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{0x03C2, 0x03C3, -31}, {0x1F51, 0x1F52, 8}, {0x1FE0, 0x1FE2, 8},
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{0x03C3, 0x03CC, -32}, {0x1F53, 0x1F54, 8}, {0x1FE5, 0x1FE6, 7},
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{0x03CC, 0x03CD, -64}, {0x1F55, 0x1F56, 8}, {0x2170, 0x2180, -16},
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{0x03CD, 0x03CF, -63}, {0x1F57, 0x1F58, 8}, {0x24D0, 0x24EA, -26},
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{0x0430, 0x0450, -32}, {0x1F60, 0x1F68, 8}, {0xFF41, 0xFF5B, -32},
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{0}
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};
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static const int uc_dup_table[][2] = { /* Start, End */
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{0x0100, 0x012F}, {0x01A0, 0x01A6}, {0x03E2, 0x03EF}, {0x04CB, 0x04CC},
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{0x0132, 0x0137}, {0x01B3, 0x01B7}, {0x0460, 0x0481}, {0x04D0, 0x04EB},
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{0x0139, 0x0149}, {0x01CD, 0x01DD}, {0x0490, 0x04BF}, {0x04EE, 0x04F5},
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{0x014A, 0x0178}, {0x01DE, 0x01EF}, {0x04BF, 0x04BF}, {0x04F8, 0x04F9},
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{0x0179, 0x017E}, {0x01F4, 0x01F5}, {0x04C1, 0x04C4}, {0x1E00, 0x1E95},
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{0x018B, 0x018B}, {0x01FA, 0x0218}, {0x04C7, 0x04C8}, {0x1EA0, 0x1EF9},
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{0}
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};
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static const int uc_word_table[][2] = { /* Offset, Value */
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{0x00FF, 0x0178}, {0x01AD, 0x01AC}, {0x01F3, 0x01F1}, {0x0269, 0x0196},
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{0x0183, 0x0182}, {0x01B0, 0x01AF}, {0x0253, 0x0181}, {0x026F, 0x019C},
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{0x0185, 0x0184}, {0x01B9, 0x01B8}, {0x0254, 0x0186}, {0x0272, 0x019D},
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{0x0188, 0x0187}, {0x01BD, 0x01BC}, {0x0259, 0x018F}, {0x0275, 0x019F},
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{0x018C, 0x018B}, {0x01C6, 0x01C4}, {0x025B, 0x0190}, {0x0283, 0x01A9},
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{0x0192, 0x0191}, {0x01C9, 0x01C7}, {0x0260, 0x0193}, {0x0288, 0x01AE},
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{0x0199, 0x0198}, {0x01CC, 0x01CA}, {0x0263, 0x0194}, {0x0292, 0x01B7},
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{0x01A8, 0x01A7}, {0x01DD, 0x018E}, {0x0268, 0x0197},
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{0}
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};
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int i, r;
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ntfschar *uc;
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uc = ntfs_malloc_nofs(default_upcase_len * sizeof(ntfschar));
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if (!uc)
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return uc;
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memset(uc, 0, default_upcase_len * sizeof(ntfschar));
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for (i = 0; i < default_upcase_len; i++)
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uc[i] = cpu_to_le16(i);
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for (r = 0; uc_run_table[r][0]; r++)
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for (i = uc_run_table[r][0]; i < uc_run_table[r][1]; i++)
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uc[i] = cpu_to_le16((le16_to_cpu(uc[i]) +
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uc_run_table[r][2]));
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for (r = 0; uc_dup_table[r][0]; r++)
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for (i = uc_dup_table[r][0]; i < uc_dup_table[r][1]; i += 2)
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uc[i + 1] = cpu_to_le16(le16_to_cpu(uc[i + 1]) - 1);
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for (r = 0; uc_word_table[r][0]; r++)
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uc[uc_word_table[r][0]] = cpu_to_le16(uc_word_table[r][1]);
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return uc;
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}
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