version 1.1.1.1, 2012/02/21 22:57:48
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version 1.1.1.2, 2021/03/17 13:38:46
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/* |
/* |
* Copyright (C) 1999-2001, 2008 Free Software Foundation, Inc. | * Copyright (C) 1999-2001, 2008, 2011, 2016 Free Software Foundation, Inc. |
* This file is part of the GNU LIBICONV Library. |
* This file is part of the GNU LIBICONV Library. |
* |
* |
* The GNU LIBICONV Library is free software; you can redistribute it |
* The GNU LIBICONV Library is free software; you can redistribute it |
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* |
* |
* You should have received a copy of the GNU Library General Public |
* You should have received a copy of the GNU Library General Public |
* License along with the GNU LIBICONV Library; see the file COPYING.LIB. |
* License along with the GNU LIBICONV Library; see the file COPYING.LIB. |
* If not, write to the Free Software Foundation, Inc., 51 Franklin Street, | * If not, see <https://www.gnu.org/licenses/>. |
* Fifth Floor, Boston, MA 02110-1301, USA. | |
*/ |
*/ |
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/* |
/* |
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in the stream, not just at the beginning. The default is big-endian. */ |
in the stream, not just at the beginning. The default is big-endian. */ |
/* The state is 0 if big-endian, 1 if little-endian. */ |
/* The state is 0 if big-endian, 1 if little-endian. */ |
static int |
static int |
ucs4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) | ucs4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n) |
{ |
{ |
state_t state = conv->istate; |
state_t state = conv->istate; |
int count = 0; |
int count = 0; |
for (; n >= 4;) { | for (; n >= 4 && count <= RET_COUNT_MAX && count <= INT_MAX-4;) { |
ucs4_t wc = (state |
ucs4_t wc = (state |
? s[0] + (s[1] << 8) + (s[2] << 16) + (s[3] << 24) |
? s[0] + (s[1] << 8) + (s[2] << 16) + (s[3] << 24) |
: (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]); |
: (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]); |
s += 4; n -= 4; count += 4; |
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if (wc == 0x0000feff) { |
if (wc == 0x0000feff) { |
} else if (wc == 0xfffe0000u) { |
} else if (wc == 0xfffe0000u) { |
state ^= 1; |
state ^= 1; |
} else if (wc <= 0x7fffffff) { |
} else if (wc <= 0x7fffffff) { |
*pwc = wc; |
*pwc = wc; |
conv->istate = state; |
conv->istate = state; |
return count; | return count+4; |
} else { |
} else { |
conv->istate = state; |
conv->istate = state; |
return RET_SHIFT_ILSEQ(count); |
return RET_SHIFT_ILSEQ(count); |
} |
} |
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s += 4; n -= 4; count += 4; |
} |
} |
conv->istate = state; |
conv->istate = state; |
return RET_TOOFEW(count); |
return RET_TOOFEW(count); |
Line 53 ucs4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned
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Line 52 ucs4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned
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/* But we output UCS-4 in big-endian order, without byte-order mark. */ |
/* But we output UCS-4 in big-endian order, without byte-order mark. */ |
static int |
static int |
ucs4_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) | ucs4_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n) |
{ |
{ |
if (wc <= 0x7fffffff) { |
if (wc <= 0x7fffffff) { |
if (n >= 4) { |
if (n >= 4) { |