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750 lines
19 KiB
Common Lisp
750 lines
19 KiB
Common Lisp
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#define MAYBE_UNUSED
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u32 generate_cmask (const u32 value)
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{
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const u32 rmask = ((value & 0x40404040u) >> 1u)
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& ~((value & 0x80808080u) >> 2u);
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const u32 hmask = (value & 0x1f1f1f1fu) + 0x05050505u;
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const u32 lmask = (value & 0x1f1f1f1fu) + 0x1f1f1f1fu;
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return rmask & ~hmask & lmask;
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}
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void append_four_byte (const u32 *buf_src, const int off_src, u32 *buf_dst, const int off_dst)
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{
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const int sd = off_src / 4;
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const int sm = off_src & 3;
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const int sm8 = sm * 8;
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const int dd = off_dst / 4;
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const int dm = off_dst & 3;
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const int dm8 = dm * 8;
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u64 t64 = hl32_to_64 (buf_src[sd + 1], buf_src[sd + 0]);
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t64 >>= sm8;
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t64 &= 0xffffffff;
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t64 <<= dm8;
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const u32 t0 = l32_from_64_S (t64);
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const u32 t1 = h32_from_64_S (t64);
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buf_dst[dd + 0] |= t0;
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buf_dst[dd + 1] |= t1;
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}
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void append_three_byte (const u32 *buf_src, const int off_src, u32 *buf_dst, const int off_dst)
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{
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const int sd = off_src / 4;
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const int sm = off_src & 3;
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const int sm8 = sm * 8;
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const int dd = off_dst / 4;
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const int dm = off_dst & 3;
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const int dm8 = dm * 8;
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u64 t64 = hl32_to_64 (buf_src[sd + 1], buf_src[sd + 0]);
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t64 >>= sm8;
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t64 &= 0x00ffffff;
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t64 <<= dm8;
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const u32 t0 = l32_from_64_S (t64);
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const u32 t1 = h32_from_64_S (t64);
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buf_dst[dd + 0] |= t0;
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buf_dst[dd + 1] |= t1;
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}
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void append_two_byte (const u32 *buf_src, const int off_src, u32 *buf_dst, const int off_dst)
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{
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const int sd = off_src / 4;
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const int sm = off_src & 3;
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const int sm8 = sm * 8;
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const int dd = off_dst / 4;
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const int dm = off_dst & 3;
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const int dm8 = dm * 8;
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u64 t64 = hl32_to_64 (buf_src[sd + 1], buf_src[sd + 0]);
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t64 >>= sm8;
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t64 &= 0x0000ffff;
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t64 <<= dm8;
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const u32 t0 = l32_from_64_S (t64);
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const u32 t1 = h32_from_64_S (t64);
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buf_dst[dd + 0] |= t0;
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buf_dst[dd + 1] |= t1;
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}
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void append_one_byte (const u32 *buf_src, const int off_src, u32 *buf_dst, const int off_dst)
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{
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const int sd = off_src / 4;
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const int sm = off_src & 3;
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const int sm8 = sm * 8;
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const int dd = off_dst / 4;
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const int dm = off_dst & 3;
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const int dm8 = dm * 8;
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u32 t = buf_src[sd];
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t >>= sm8;
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t &= 0xff;
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t <<= dm8;
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buf_dst[dd] |= t;
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}
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void append_block (const u32 *buf_src, const int off_src, u32 *buf_dst, const int off_dst, const int len)
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{
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int i;
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for (i = 0; i < len - 3; i += 4)
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{
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append_four_byte (buf_src, off_src + i, buf_dst, off_dst + i);
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}
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const int left = len - i;
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switch (left)
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{
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case 3: append_three_byte (buf_src, off_src + i, buf_dst, off_dst + i); break;
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case 2: append_two_byte (buf_src, off_src + i, buf_dst, off_dst + i); break;
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case 1: append_one_byte (buf_src, off_src + i, buf_dst, off_dst + i); break;
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}
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}
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void exchange_byte (u32 *buf, const int off_src, const int off_dst)
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{
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u8 *ptr = (u8 *) buf;
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const u8 tmp = ptr[off_src];
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ptr[off_src] = ptr[off_dst];
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ptr[off_dst] = tmp;
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/*
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something tells me we do this faster
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const int sd = off_src / 4;
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const int sm = off_src & 3;
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const int sm8 = sm * 8;
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const int dd = off_dst / 4;
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const int dm = off_dst & 3;
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const int dm8 = dm * 8;
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u32 ts = buf[sd];
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u32 td = buf[dd];
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ts >>= sm8;
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td >>= dm8;
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ts &= 0xff;
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td &= 0xff;
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const u32 x = ts ^ td;
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const u32 xs = x << sm8;
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const u32 xd = x << dm8;
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buf[sd] ^= xs;
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buf[dd] ^= xd;
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*/
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}
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int mangle_lrest (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
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{
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const u32 t = buf[idx];
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buf[idx] = t | generate_cmask (t);
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}
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return (len);
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}
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int mangle_lrest_ufirst (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
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{
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const u32 t = buf[idx];
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buf[idx] = t | generate_cmask (t);
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}
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const u32 t = buf[0];
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buf[0] = t & ~(0x00000020 & generate_cmask (t));
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return (len);
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}
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int mangle_urest (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
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{
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const u32 t = buf[idx];
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buf[idx] = t & ~(generate_cmask (t));
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}
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return (len);
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}
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int mangle_urest_lfirst (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
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{
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const u32 t = buf[idx];
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buf[idx] = t & ~(generate_cmask (t));
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}
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const u32 t = buf[0];
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buf[0] = t | (0x00000020 & generate_cmask (t));
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return (len);
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}
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int mangle_trest (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
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{
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const u32 t = buf[idx];
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buf[idx] = t ^ generate_cmask (t);
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}
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return (len);
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}
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int mangle_toggle_at (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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if (p0 >= len) return (len);
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const u8 p0d = p0 / 4;
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const u8 p0m = p0 & 3;
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const u32 tmp = 0x20u << (p0m * 8);
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const u32 t = buf[p0d];
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buf[p0d] = t ^ (generate_cmask (t) & tmp);
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return (len);
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}
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int mangle_reverse (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int l = 0; l < len / 2; l++)
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{
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const int r = len - 1 - l;
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exchange_byte (buf, l, r);
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}
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return (len);
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}
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int mangle_dupeword (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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const int out_len = len * 2;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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append_block (buf, 0, buf, len, len);
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return (out_len);
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}
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int mangle_dupeword_times (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = (len * p0) + len;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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u8 *out = buf + len;
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for (int t = 0; t < p0; t++) for (int i = 0; i < len; i++) *out++ = *buf++;
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return (out_len);
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}
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int mangle_reflect (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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const int out_len = len * 2;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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append_block (buf, 0, buf, len, len);
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for (int l = 0; l < len / 2; l++)
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{
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const int r = len - 1 - l;
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exchange_byte (buf, len + l, len + r);
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}
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return out_len;
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}
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int mangle_append (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = len + 1;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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buf[len] = p0;
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return (out_len);
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}
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int mangle_prepend (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = len + 1;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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for (int pos = len - 1; pos >= 0; pos--)
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{
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buf[pos + 1] = buf[pos];
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}
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buf[0] = p0;
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return (out_len);
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}
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int mangle_rotate_left (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int l = 0, r = len - 1; r > l; r--)
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{
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exchange_byte (buf, l, r);
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}
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return (len);
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}
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int mangle_rotate_right (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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for (int l = 0, r = len - 1; l < r; l++)
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{
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exchange_byte (buf, l, r);
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}
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return (len);
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}
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int mangle_delete_at (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len) return (len);
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for (int pos = p0; pos < len - 1; pos++)
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{
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buf[pos] = buf[pos + 1];
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}
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buf[len - 1] = 0;
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return (len - 1);
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}
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int mangle_delete_first (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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return mangle_delete_at (0, p1, buf, len);
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}
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int mangle_delete_last (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (len == 0) return 0;
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return mangle_delete_at (len - 1, p1, buf, len);
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}
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int mangle_extract (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len) return (len);
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if ((p0 + p1) > len) return (len);
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for (int pos = 0; pos < p1; pos++)
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{
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buf[pos] = buf[p0 + pos];
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}
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for (int pos = p1; pos < len; pos++)
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{
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buf[pos] = 0;
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}
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return (p1);
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}
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int mangle_omit (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len) return (len);
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if ((p0 + p1) > len) return (len);
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for (int pos = p0; pos < len - p1; pos++)
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{
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buf[pos] = buf[pos + p1];
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}
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for (int pos = len - p1; pos < len; pos++)
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{
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buf[pos] = 0;
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}
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return (len - p1);
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}
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int mangle_insert (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len + 1) return (len);
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const int out_len = len + 1;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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for (int pos = len - 1; pos > p0 - 1; pos--)
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{
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buf[pos + 1] = buf[pos];
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}
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buf[p0] = p1;
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return (out_len);
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}
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int mangle_overstrike (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len) return (len);
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buf[p0] = p1;
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return (len);
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}
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int mangle_truncate_at (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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if (p0 >= len) return (len);
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for (int pos = p0; pos < len; pos++)
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{
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buf[pos] = 0;
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}
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return (p0);
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}
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int mangle_replace (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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for (int pos = 0; pos < len; pos++)
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{
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if (buf[pos] != p0) continue;
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buf[pos] = p1;
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}
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return (len);
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}
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int mangle_purgechar (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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int out_len = 0;
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for (int pos = 0; pos < len; pos++)
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{
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if (buf[pos] == p0) continue;
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buf[out_len] = buf[pos];
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out_len++;
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}
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for (int pos = out_len; pos < len; pos++)
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{
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buf[pos] = 0;
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}
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return (out_len);
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}
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int mangle_dupechar_first (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = len + p0;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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const u8 c = buf[0];
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for (int i = 0; i < p0; i++)
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{
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mangle_prepend (c, 0, buf, len + i);
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}
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return (out_len);
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}
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int mangle_dupechar_last (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = len + p0;
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if (len == 0) return (len);
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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const u8 c = buf[len - 1];
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for (int i = 0; i < p0; i++)
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{
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mangle_append (c, 0, buf, len + i);
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}
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return (out_len);
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}
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int mangle_dupechar_all (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
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{
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const int out_len = len + len;
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if (out_len >= RP_PASSWORD_SIZE) return (len);
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for (int pos = len - 1; pos >= 0; pos--)
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{
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int new_pos = pos * 2;
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buf[new_pos] = buf[pos];
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buf[new_pos + 1] = buf[pos];
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}
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return (out_len);
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}
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int mangle_switch_first (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
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{
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if (len < 2) return (len);
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exchange_byte (buf, 0, 1);
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_switch_last (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
|
|
{
|
|
if (len < 2) return (len);
|
|
|
|
exchange_byte (buf, len - 2, len - 1);
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_switch_at (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
if (p1 >= len) return (len);
|
|
|
|
exchange_byte (buf, p0, p1);
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_chr_shiftl (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
buf[p0] <<= 1;
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_chr_shiftr (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
buf[p0] >>= 1;
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_chr_incr (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
buf[p0]++;
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_chr_decr (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
buf[p0]--;
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_replace_np1 (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if ((p0 + 1) >= len) return (len);
|
|
|
|
buf[p0] = buf[p0 + 1];
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_replace_nm1 (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 == 0) return (len);
|
|
|
|
if (p0 >= len) return (len);
|
|
|
|
buf[p0] = buf[p0 - 1];
|
|
|
|
return (len);
|
|
}
|
|
|
|
int mangle_dupeblock_first (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
const int out_len = len + p0;
|
|
|
|
if (out_len >= RP_PASSWORD_SIZE) return (len);
|
|
|
|
for (int i = 0; i < p0; i++)
|
|
{
|
|
const u8 c = buf[i * 2];
|
|
|
|
mangle_insert (i, c, buf, len + i);
|
|
}
|
|
|
|
return (out_len);
|
|
}
|
|
|
|
int mangle_dupeblock_last (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u8 *buf, const int len)
|
|
{
|
|
if (p0 >= len) return (len);
|
|
|
|
const int out_len = len + p0;
|
|
|
|
if (out_len >= RP_PASSWORD_SIZE) return (len);
|
|
|
|
for (int i = 0; i < p0; i++)
|
|
{
|
|
const u8 c = buf[len - p0 + i];
|
|
|
|
mangle_append (c, 0, buf, len + i);
|
|
}
|
|
|
|
return (out_len);
|
|
}
|
|
|
|
int mangle_title_sep (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int len)
|
|
{
|
|
if ((len + 4) >= RP_PASSWORD_SIZE) return (len); // cheap way to not need to check for overflow of i + 1
|
|
|
|
mangle_lrest_ufirst (0, 0, buf, len);
|
|
|
|
for (int i = 0, idx = 0; i < len; i += 4, idx += 1)
|
|
{
|
|
const u32 v = buf[idx];
|
|
|
|
u32 out0 = 0;
|
|
u32 out1 = 0;
|
|
|
|
if (((v >> 0) & 0xff) == p0) out0 |= 0x0000ff00;
|
|
if (((v >> 8) & 0xff) == p0) out0 |= 0x00ff0000;
|
|
if (((v >> 16) & 0xff) == p0) out0 |= 0xff000000;
|
|
if (((v >> 24) & 0xff) == p0) out1 |= 0x000000ff;
|
|
|
|
buf[idx + 0] &= ~(generate_cmask (buf[idx + 0]) & out0);
|
|
buf[idx + 1] &= ~(generate_cmask (buf[idx + 1]) & out1);
|
|
}
|
|
|
|
return (len);
|
|
}
|
|
|
|
int apply_rule (const u32 name, MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u32 *buf, const int in_len)
|
|
{
|
|
int out_len = in_len;
|
|
|
|
switch (name)
|
|
{
|
|
case RULE_OP_MANGLE_LREST: out_len = mangle_lrest (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_LREST_UFIRST: out_len = mangle_lrest_ufirst (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_UREST: out_len = mangle_urest (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_UREST_LFIRST: out_len = mangle_urest_lfirst (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_TREST: out_len = mangle_trest (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_TOGGLE_AT: out_len = mangle_toggle_at (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_REVERSE: out_len = mangle_reverse (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPEWORD: out_len = mangle_dupeword (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPEWORD_TIMES: out_len = mangle_dupeword_times (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_REFLECT: out_len = mangle_reflect (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_APPEND: out_len = mangle_append (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_PREPEND: out_len = mangle_prepend (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_ROTATE_LEFT: out_len = mangle_rotate_left (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_ROTATE_RIGHT: out_len = mangle_rotate_right (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_DELETE_FIRST: out_len = mangle_delete_first (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DELETE_LAST: out_len = mangle_delete_last (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DELETE_AT: out_len = mangle_delete_at (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_EXTRACT: out_len = mangle_extract (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_OMIT: out_len = mangle_omit (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_INSERT: out_len = mangle_insert (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_OVERSTRIKE: out_len = mangle_overstrike (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_TRUNCATE_AT: out_len = mangle_truncate_at (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_REPLACE: out_len = mangle_replace (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_PURGECHAR: out_len = mangle_purgechar (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPECHAR_FIRST: out_len = mangle_dupechar_first (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPECHAR_LAST: out_len = mangle_dupechar_last (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPECHAR_ALL: out_len = mangle_dupechar_all (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_SWITCH_FIRST: out_len = mangle_switch_first (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_SWITCH_LAST: out_len = mangle_switch_last (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_SWITCH_AT: out_len = mangle_switch_at (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_CHR_SHIFTL: out_len = mangle_chr_shiftl (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_CHR_SHIFTR: out_len = mangle_chr_shiftr (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_CHR_INCR: out_len = mangle_chr_incr (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_CHR_DECR: out_len = mangle_chr_decr (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_REPLACE_NP1: out_len = mangle_replace_np1 (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_REPLACE_NM1: out_len = mangle_replace_nm1 (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPEBLOCK_FIRST: out_len = mangle_dupeblock_first (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_DUPEBLOCK_LAST: out_len = mangle_dupeblock_last (p0, p1, (u8 *) buf, out_len); break;
|
|
case RULE_OP_MANGLE_TITLE_SEP: out_len = mangle_title_sep (p0, p1, buf, out_len); break;
|
|
case RULE_OP_MANGLE_TITLE: out_len = mangle_title_sep (' ', p1, buf, out_len); break;
|
|
}
|
|
|
|
return out_len;
|
|
}
|
|
|
|
int apply_rules (__constant const u32 *cmds, u32 *buf, const int in_len)
|
|
{
|
|
int out_len = in_len;
|
|
|
|
for (u32 i = 0; cmds[i] != 0; i++)
|
|
{
|
|
const u32 cmd = cmds[i];
|
|
|
|
const u8 name = (cmd >> 0) & 0xff;
|
|
const u8 p0 = (cmd >> 8) & 0xff;
|
|
const u8 p1 = (cmd >> 16) & 0xff;
|
|
|
|
out_len = apply_rule (name, p0, p1, buf, out_len);
|
|
}
|
|
|
|
return out_len;
|
|
}
|