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glibc/iconvdata/iso-2022-jp-3.c
Florian Weimer 7d88c6142c gconv: Fix assertion failure in ISO-2022-JP-3 module (bug 27256) 
The conversion loop to the internal encoding does not follow
the interface contract that __GCONV_FULL_OUTPUT is only returned
after the internal wchar_t buffer has been filled completely.  This
is enforced by the first of the two asserts in iconv/skeleton.c:

	      /* We must run out of output buffer space in this
		 rerun.  */
	      assert (outbuf == outerr);
	      assert (nstatus == __GCONV_FULL_OUTPUT);

This commit solves this issue by queuing a second wide character
which cannot be written immediately in the state variable, like
other converters already do (e.g., BIG5-HKSCS or TSCII).

Reported-by: Tavis Ormandy <taviso@gmail.com>
2021-01-27 14:02:47 +01:00

803 lines
28 KiB
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/* Conversion module for ISO-2022-JP-3.
Copyright (C) 1998-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998,
and Bruno Haible <bruno@clisp.org>, 2002.
The GNU C 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.
The GNU C 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 the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <assert.h>
#include <dlfcn.h>
#include <gconv.h>
#include <stdint.h>
#include <string.h>
#include "jis0201.h"
#include "jis0208.h"
#include "jisx0213.h"
/* This makes obvious what everybody knows: 0x1b is the Esc character. */
#define ESC 0x1b
/* Definitions used in the body of the `gconv' function. */
#define CHARSET_NAME "ISO-2022-JP-3//"
#define FROM_LOOP from_iso2022jp3_loop
#define TO_LOOP to_iso2022jp3_loop
#define DEFINE_INIT 1
#define DEFINE_FINI 1
#define ONE_DIRECTION 0
#define FROM_LOOP_MIN_NEEDED_FROM 1
#define FROM_LOOP_MAX_NEEDED_FROM 4
#define FROM_LOOP_MIN_NEEDED_TO 4
#define FROM_LOOP_MAX_NEEDED_TO 8
#define TO_LOOP_MIN_NEEDED_FROM 4
#define TO_LOOP_MAX_NEEDED_FROM 4
#define TO_LOOP_MIN_NEEDED_TO 1
#define TO_LOOP_MAX_NEEDED_TO 6
#define PREPARE_LOOP \
int saved_state; \
int *statep = &data->__statep->__count;
#define EXTRA_LOOP_ARGS , statep
/* The COUNT element of the state keeps track of the currently selected
character set. The possible values are: */
enum
{
ASCII_set = 0, /* Esc ( B */
JISX0208_1978_set = 1 << 3, /* Esc $ @ */
JISX0208_1983_set = 2 << 3, /* Esc $ B */
JISX0201_Roman_set = 3 << 3, /* Esc ( J */
JISX0201_Kana_set = 4 << 3, /* Esc ( I */
JISX0213_1_2000_set = 5 << 3, /* Esc $ ( O */
JISX0213_2_set = 6 << 3, /* Esc $ ( P */
JISX0213_1_2004_set = 7 << 3, /* Esc $ ( Q */
CURRENT_SEL_MASK = 7 << 3
};
/* During UCS-4 to ISO-2022-JP-3 conversion, the COUNT element of the
state also contains the last two bytes to be output, shifted by 6
bits, and a one-bit indicator whether they must be preceded by the
shift sequence, in bit 22. During ISO-2022-JP-3 to UCS-4
conversion, COUNT may also contain a non-zero pending wide
character, shifted by six bits. This happens for certain inputs in
JISX0213_1_2004_set and JISX0213_2_set if the second wide character
in a combining sequence cannot be written because the buffer is
full. */
/* Since this is a stateful encoding we have to provide code which resets
the output state to the initial state. This has to be done during the
flushing. */
#define EMIT_SHIFT_TO_INIT \
if (data->__statep->__count != ASCII_set) \
{ \
if (FROM_DIRECTION) \
{ \
if (__glibc_likely (outbuf + 4 <= outend)) \
{ \
/* Write out the last character. */ \
*((uint32_t *) outbuf) = data->__statep->__count >> 6; \
outbuf += sizeof (uint32_t); \
data->__statep->__count = ASCII_set; \
} \
else \
/* We don't have enough room in the output buffer. */ \
status = __GCONV_FULL_OUTPUT; \
} \
else \
{ \
/* We are not in the initial state. To switch back we have \
to write out the buffered character and/or emit the sequence \
`Esc ( B'. */ \
size_t need = \
(data->__statep->__count >> 6 \
? (data->__statep->__count >> 22 ? 3 : 0) + 2 \
: 0) \
+ ((data->__statep->__count & CURRENT_SEL_MASK) != ASCII_set \
? 3 : 0); \
\
if (__glibc_unlikely (outbuf + need > outend)) \
/* We don't have enough room in the output buffer. */ \
status = __GCONV_FULL_OUTPUT; \
else \
{ \
if (data->__statep->__count >> 6) \
{ \
uint32_t lasttwo = data->__statep->__count >> 6; \
\
if (lasttwo >> 16) \
{ \
/* Write out the shift sequence before the last \
character. */ \
assert ((data->__statep->__count & CURRENT_SEL_MASK) \
== JISX0208_1983_set); \
*outbuf++ = ESC; \
*outbuf++ = '$'; \
*outbuf++ = 'B'; \
} \
/* Write out the last character. */ \
*outbuf++ = (lasttwo >> 8) & 0xff; \
*outbuf++ = lasttwo & 0xff; \
} \
if ((data->__statep->__count & CURRENT_SEL_MASK) != ASCII_set) \
{ \
/* Write out the shift sequence. */ \
*outbuf++ = ESC; \
*outbuf++ = '('; \
*outbuf++ = 'B'; \
} \
data->__statep->__count &= 7; \
data->__statep->__count |= ASCII_set; \
} \
} \
}
/* Since we might have to reset input pointer we must be able to save
and retore the state. */
#define SAVE_RESET_STATE(Save) \
if (Save) \
saved_state = *statep; \
else \
*statep = saved_state
/* First define the conversion function from ISO-2022-JP-3 to UCS-4. */
#define MIN_NEEDED_INPUT FROM_LOOP_MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT FROM_LOOP_MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT FROM_LOOP_MIN_NEEDED_TO
#define MAX_NEEDED_OUTPUT FROM_LOOP_MAX_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t ch; \
\
/* Output any pending character. */ \
ch = set >> 6; \
if (__glibc_unlikely (ch != 0)) \
{ \
put32 (outptr, ch); \
outptr += 4; \
/* Remove the pending character, but preserve state bits. */ \
set &= (1 << 6) - 1; \
continue; \
} \
\
/* Otherwise read the next input byte. */ \
ch = *inptr; \
\
/* Recognize escape sequences. */ \
if (__glibc_unlikely (ch == ESC)) \
{ \
/* We now must be prepared to read two to three more bytes. \
If we have a match in the first byte but then the input buffer \
ends we terminate with an error since we must not risk missing \
an escape sequence just because it is not entirely in the \
current input buffer. */ \
if (__builtin_expect (inptr + 2 >= inend, 0) \
|| (inptr[1] == '$' && inptr[2] == '(' \
&& __builtin_expect (inptr + 3 >= inend, 0))) \
{ \
/* Not enough input available. */ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
if (inptr[1] == '(') \
{ \
if (inptr[2] == 'B') \
{ \
/* ASCII selected. */ \
set = ASCII_set; \
inptr += 3; \
continue; \
} \
else if (inptr[2] == 'J') \
{ \
/* JIS X 0201 selected. */ \
set = JISX0201_Roman_set; \
inptr += 3; \
continue; \
} \
else if (inptr[2] == 'I') \
{ \
/* JIS X 0201 selected. */ \
set = JISX0201_Kana_set; \
inptr += 3; \
continue; \
} \
} \
else if (inptr[1] == '$') \
{ \
if (inptr[2] == '@') \
{ \
/* JIS X 0208-1978 selected. */ \
set = JISX0208_1978_set; \
inptr += 3; \
continue; \
} \
else if (inptr[2] == 'B') \
{ \
/* JIS X 0208-1983 selected. */ \
set = JISX0208_1983_set; \
inptr += 3; \
continue; \
} \
else if (inptr[2] == '(') \
{ \
if (inptr[3] == 'O' || inptr[3] == 'Q') \
{ \
/* JIS X 0213 plane 1 selected. */ \
/* In this direction we don't need to distinguish the \
versions from 2000 and 2004. */ \
set = JISX0213_1_2004_set; \
inptr += 4; \
continue; \
} \
else if (inptr[3] == 'P') \
{ \
/* JIS X 0213 plane 2 selected. */ \
set = JISX0213_2_set; \
inptr += 4; \
continue; \
} \
} \
} \
} \
\
if (ch >= 0x80) \
{ \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
else if (set == ASCII_set || (ch < 0x21 || ch == 0x7f)) \
/* Almost done, just advance the input pointer. */ \
++inptr; \
else if (set == JISX0201_Roman_set) \
{ \
/* Use the JIS X 0201 table. */ \
ch = jisx0201_to_ucs4 (ch); \
if (__glibc_unlikely (ch == __UNKNOWN_10646_CHAR)) \
{ \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
++inptr; \
} \
else if (set == JISX0201_Kana_set) \
{ \
/* Use the JIS X 0201 table. */ \
ch = jisx0201_to_ucs4 (ch + 0x80); \
if (__glibc_unlikely (ch == __UNKNOWN_10646_CHAR)) \
{ \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
++inptr; \
} \
else if (set == JISX0208_1978_set || set == JISX0208_1983_set) \
{ \
/* XXX I don't have the tables for these two old variants of \
JIS X 0208. Therefore I'm using the tables for JIS X \
0208-1990. If somebody has problems with this please \
provide the appropriate tables. */ \
ch = jisx0208_to_ucs4 (&inptr, inend - inptr, 0); \
\
if (__glibc_unlikely (ch == 0)) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
else if (__glibc_unlikely (ch == __UNKNOWN_10646_CHAR)) \
{ \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
} \
else /* (set == JISX0213_1_2004_set || set == JISX0213_2_set) */ \
{ \
if (__glibc_unlikely (inptr + 1 >= inend)) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
ch = jisx0213_to_ucs4 ( \
((JISX0213_1_2004_set - set + (1 << 3)) << 5) + ch, \
inptr[1]); \
if (ch == 0) \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
\
if (ch < 0x80) \
{ \
/* It's a combining character. */ \
uint32_t u1 = __jisx0213_to_ucs_combining[ch - 1][0]; \
uint32_t u2 = __jisx0213_to_ucs_combining[ch - 1][1]; \
\
inptr += 2; \
\
put32 (outptr, u1); \
outptr += 4; \
\
/* See whether we have room for two characters. */ \
if (outptr + 4 <= outend) \
{ \
put32 (outptr, u2); \
outptr += 4; \
continue; \
} \
\
/* Otherwise store only the first character now, and \
put the second one into the queue. */ \
set |= u2 << 6; \
/* Tell the caller why we terminate the loop. */ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
inptr += 2; \
} \
\
put32 (outptr, ch); \
outptr += 4; \
}
#define LOOP_NEED_FLAGS
#define EXTRA_LOOP_DECLS , int *statep
#define INIT_PARAMS int set = *statep
#define UPDATE_PARAMS *statep = set
#include <iconv/loop.c>
/* Next, define the other direction, from UCS-4 to ISO-2022-JP-3. */
/* Composition tables for each of the relevant combining characters. */
static const struct
{
uint16_t base;
uint16_t composed;
} comp_table_data[] =
{
#define COMP_TABLE_IDX_02E5 0
#define COMP_TABLE_LEN_02E5 1
{ 0x2b64, 0x2b65 }, /* 0x12B65 = 0x12B64 U+02E5 */
#define COMP_TABLE_IDX_02E9 (COMP_TABLE_IDX_02E5 + COMP_TABLE_LEN_02E5)
#define COMP_TABLE_LEN_02E9 1
{ 0x2b60, 0x2b66 }, /* 0x12B66 = 0x12B60 U+02E9 */
#define COMP_TABLE_IDX_0300 (COMP_TABLE_IDX_02E9 + COMP_TABLE_LEN_02E9)
#define COMP_TABLE_LEN_0300 5
{ 0x295c, 0x2b44 }, /* 0x12B44 = 0x1295C U+0300 */
{ 0x2b38, 0x2b48 }, /* 0x12B48 = 0x12B38 U+0300 */
{ 0x2b37, 0x2b4a }, /* 0x12B4A = 0x12B37 U+0300 */
{ 0x2b30, 0x2b4c }, /* 0x12B4C = 0x12B30 U+0300 */
{ 0x2b43, 0x2b4e }, /* 0x12B4E = 0x12B43 U+0300 */
#define COMP_TABLE_IDX_0301 (COMP_TABLE_IDX_0300 + COMP_TABLE_LEN_0300)
#define COMP_TABLE_LEN_0301 4
{ 0x2b38, 0x2b49 }, /* 0x12B49 = 0x12B38 U+0301 */
{ 0x2b37, 0x2b4b }, /* 0x12B4B = 0x12B37 U+0301 */
{ 0x2b30, 0x2b4d }, /* 0x12B4D = 0x12B30 U+0301 */
{ 0x2b43, 0x2b4f }, /* 0x12B4F = 0x12B43 U+0301 */
#define COMP_TABLE_IDX_309A (COMP_TABLE_IDX_0301 + COMP_TABLE_LEN_0301)
#define COMP_TABLE_LEN_309A 14
{ 0x242b, 0x2477 }, /* 0x12477 = 0x1242B U+309A */
{ 0x242d, 0x2478 }, /* 0x12478 = 0x1242D U+309A */
{ 0x242f, 0x2479 }, /* 0x12479 = 0x1242F U+309A */
{ 0x2431, 0x247a }, /* 0x1247A = 0x12431 U+309A */
{ 0x2433, 0x247b }, /* 0x1247B = 0x12433 U+309A */
{ 0x252b, 0x2577 }, /* 0x12577 = 0x1252B U+309A */
{ 0x252d, 0x2578 }, /* 0x12578 = 0x1252D U+309A */
{ 0x252f, 0x2579 }, /* 0x12579 = 0x1252F U+309A */
{ 0x2531, 0x257a }, /* 0x1257A = 0x12531 U+309A */
{ 0x2533, 0x257b }, /* 0x1257B = 0x12533 U+309A */
{ 0x253b, 0x257c }, /* 0x1257C = 0x1253B U+309A */
{ 0x2544, 0x257d }, /* 0x1257D = 0x12544 U+309A */
{ 0x2548, 0x257e }, /* 0x1257E = 0x12548 U+309A */
{ 0x2675, 0x2678 }, /* 0x12678 = 0x12675 U+309A */
};
#define MIN_NEEDED_INPUT TO_LOOP_MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT TO_LOOP_MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT TO_LOOP_MIN_NEEDED_TO
#define MAX_NEEDED_OUTPUT TO_LOOP_MAX_NEEDED_TO
#define LOOPFCT TO_LOOP
#define BODY \
{ \
uint32_t ch = get32 (inptr); \
\
if (lasttwo != 0) \
{ \
/* Attempt to combine the last character with this one. */ \
unsigned int idx; \
unsigned int len; \
\
if (ch == 0x02e5) \
idx = COMP_TABLE_IDX_02E5, len = COMP_TABLE_LEN_02E5; \
else if (ch == 0x02e9) \
idx = COMP_TABLE_IDX_02E9, len = COMP_TABLE_LEN_02E9; \
else if (ch == 0x0300) \
idx = COMP_TABLE_IDX_0300, len = COMP_TABLE_LEN_0300; \
else if (ch == 0x0301) \
idx = COMP_TABLE_IDX_0301, len = COMP_TABLE_LEN_0301; \
else if (ch == 0x309a) \
idx = COMP_TABLE_IDX_309A, len = COMP_TABLE_LEN_309A; \
else \
goto not_combining; \
\
do \
if (comp_table_data[idx].base == (uint16_t) lasttwo) \
break; \
while (++idx, --len > 0); \
\
if (len > 0) \
{ \
/* Output the combined character. */ \
/* We know the combined character is in JISX0213 plane 1, \
but the buffered character may have been in JISX0208 or in \
JISX0213 plane 1. */ \
size_t need = \
(lasttwo >> 16 \
|| (set != JISX0213_1_2000_set && set != JISX0213_1_2004_set) \
? 4 : 0); \
\
if (__glibc_unlikely (outptr + need + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
if (need) \
{ \
/* But first, output the escape sequence. */ \
*outptr++ = ESC; \
*outptr++ = '$'; \
*outptr++ = '('; \
*outptr++ = 'O'; \
set = JISX0213_1_2000_set; \
} \
lasttwo = comp_table_data[idx].composed; \
*outptr++ = (lasttwo >> 8) & 0xff; \
*outptr++ = lasttwo & 0xff; \
lasttwo = 0; \
inptr += 4; \
continue; \
} \
\
not_combining: \
/* Output the buffered character. */ \
/* We know it is in JISX0208 or in JISX0213 plane 1. */ \
{ \
size_t need = (lasttwo >> 16 ? 3 : 0); \
\
if (__glibc_unlikely (outptr + need + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
if (need) \
{ \
/* But first, output the escape sequence. */ \
assert (set == JISX0208_1983_set); \
*outptr++ = ESC; \
*outptr++ = '$'; \
*outptr++ = 'B'; \
} \
*outptr++ = (lasttwo >> 8) & 0xff; \
*outptr++ = lasttwo & 0xff; \
lasttwo = 0; \
continue; \
} \
} \
\
/* First see whether we can write the character using the currently \
selected character set. */ \
if (set == ASCII_set) \
{ \
/* Please note that the NUL byte is *not* matched if we are not \
currently using the ASCII charset. This is because we must \
switch to the initial state whenever a NUL byte is written. */ \
if (ch <= 0x7f) \
{ \
*outptr++ = ch; \
inptr += 4; \
continue; \
} \
} \
/* ISO-2022-JP recommends to encode the newline character always in \
ASCII since this allows a context-free interpretation of the \
characters at the beginning of the next line. Otherwise it would \
have to be known whether the last line ended using ASCII or \
JIS X 0201. */ \
else if (set == JISX0201_Roman_set) \
{ \
unsigned char buf[1]; \
if (ucs4_to_jisx0201 (ch, buf) != __UNKNOWN_10646_CHAR \
&& buf[0] > 0x20 && buf[0] < 0x80) \
{ \
*outptr++ = buf[0]; \
inptr += 4; \
continue; \
} \
} \
else if (set == JISX0201_Kana_set) \
{ \
unsigned char buf[1]; \
if (ucs4_to_jisx0201 (ch, buf) != __UNKNOWN_10646_CHAR \
&& buf[0] >= 0x80) \
{ \
*outptr++ = buf[0] - 0x80; \
inptr += 4; \
continue; \
} \
} \
else if (/*set == JISX0208_1978_set || */ set == JISX0208_1983_set) \
{ \
size_t written = ucs4_to_jisx0208 (ch, outptr, outend - outptr); \
\
if (written != __UNKNOWN_10646_CHAR) \
{ \
uint32_t jch = ucs4_to_jisx0213 (ch); \
\
if (jch & 0x0080) \
{ \
/* A possible match in comp_table_data. Buffer it. */ \
lasttwo = jch & 0x7f7f; \
inptr += 4; \
continue; \
} \
if (__glibc_unlikely (written == 0)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
else \
{ \
outptr += written; \
inptr += 4; \
continue; \
} \
} \
} \
else \
{ \
/* (set == JISX0213_1_2000_set || set == JISX0213_1_2004_set \
|| set == JISX0213_2_set) */ \
uint32_t jch = ucs4_to_jisx0213 (ch); \
\
if (jch != 0 \
&& (jch & 0x8000 \
? set == JISX0213_2_set \
: (set == JISX0213_1_2004_set \
|| (set == JISX0213_1_2000_set \
&& !jisx0213_added_in_2004_p (jch))))) \
{ \
if (jch & 0x0080) \
{ \
/* A possible match in comp_table_data. Buffer it. */ \
\
/* We know it's a JISX 0213 plane 1 character. */ \
assert ((jch & 0x8000) == 0); \
\
lasttwo = jch & 0x7f7f; \
inptr += 4; \
continue; \
} \
\
if (__glibc_unlikely (outptr + 1 >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = (jch >> 8) & 0x7f; \
*outptr++ = jch & 0x7f; \
inptr += 4; \
continue; \
} \
} \
\
/* The attempts to use the currently selected character set failed, \
either because the character requires a different character set, \
or because the character is unknown. */ \
\
if (ch <= 0x7f) \
{ \
/* We must encode using ASCII. First write out the escape \
sequence. */ \
if (__glibc_unlikely (outptr + 3 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
*outptr++ = ESC; \
*outptr++ = '('; \
*outptr++ = 'B'; \
set = ASCII_set; \
\
if (__glibc_unlikely (outptr >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = ch; \
} \
else \
{ \
unsigned char buf[2]; \
\
/* Try JIS X 0201 Roman. */ \
if (ucs4_to_jisx0201 (ch, buf) != __UNKNOWN_10646_CHAR \
&& buf[0] > 0x20 && buf[0] < 0x80) \
{ \
if (set != JISX0201_Roman_set) \
{ \
if (__glibc_unlikely (outptr + 3 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = ESC; \
*outptr++ = '('; \
*outptr++ = 'J'; \
set = JISX0201_Roman_set; \
} \
\
if (__glibc_unlikely (outptr >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = buf[0]; \
} \
else \
{ \
uint32_t jch = ucs4_to_jisx0213 (ch); \
\
/* Try JIS X 0208. */ \
size_t written = ucs4_to_jisx0208 (ch, buf, 2); \
if (written != __UNKNOWN_10646_CHAR) \
{ \
if (jch & 0x0080) \
{ \
/* A possible match in comp_table_data. Buffer it. */ \
lasttwo = ((set != JISX0208_1983_set ? 1 : 0) << 16) \
| (jch & 0x7f7f); \
set = JISX0208_1983_set; \
inptr += 4; \
continue; \
} \
\
if (set != JISX0208_1983_set) \
{ \
if (__glibc_unlikely (outptr + 3 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = ESC; \
*outptr++ = '$'; \
*outptr++ = 'B'; \
set = JISX0208_1983_set; \
} \
\
if (__glibc_unlikely (outptr + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = buf[0]; \
*outptr++ = buf[1]; \
} \
else \
{ \
/* Try JIS X 0213. */ \
if (jch != 0) \
{ \
int new_set = \
(jch & 0x8000 \
? JISX0213_2_set \
: jisx0213_added_in_2004_p (jch) \
? JISX0213_1_2004_set \
: JISX0213_1_2000_set); \
\
if (set != new_set) \
{ \
if (__glibc_unlikely (outptr + 4 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = ESC; \
*outptr++ = '$'; \
*outptr++ = '('; \
*outptr++ = \
((new_set - JISX0213_1_2000_set) >> 3) + 'O'; \
set = new_set; \
} \
\
if (jch & 0x0080) \
{ \
/* A possible match in comp_table_data. \
Buffer it. */ \
\
/* We know it's a JIS X 0213 plane 1 character. */ \
assert ((jch & 0x8000) == 0); \
\
lasttwo = jch & 0x7f7f; \
inptr += 4; \
continue; \
} \
\
if (__glibc_unlikely (outptr + 1 >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = (jch >> 8) & 0x7f; \
*outptr++ = jch & 0x7f; \
} \
else \
{ \
/* Try JIS X 0201 Katakana. This is officially not part \
of ISO-2022-JP-3. Therefore we try it after all other \
attempts. */ \
if (ucs4_to_jisx0201 (ch, buf) != __UNKNOWN_10646_CHAR \
&& buf[0] >= 0x80) \
{ \
if (set != JISX0201_Kana_set) \
{ \
if (__builtin_expect (outptr + 3 > outend, 0)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = ESC; \
*outptr++ = '('; \
*outptr++ = 'I'; \
set = JISX0201_Kana_set; \
} \
\
if (__glibc_unlikely (outptr >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = buf[0] - 0x80; \
} \
else \
{ \
UNICODE_TAG_HANDLER (ch, 4); \
\
/* Illegal character. */ \
STANDARD_TO_LOOP_ERR_HANDLER (4); \
} \
} \
} \
} \
} \
\
/* Now that we wrote the output increment the input pointer. */ \
inptr += 4; \
}
#define LOOP_NEED_FLAGS
#define EXTRA_LOOP_DECLS , int *statep
#define INIT_PARAMS int set = *statep & CURRENT_SEL_MASK; \
uint32_t lasttwo = *statep >> 6
#define REINIT_PARAMS do \
{ \
set = *statep & CURRENT_SEL_MASK; \
lasttwo = *statep >> 6; \
} \
while (0)
#define UPDATE_PARAMS *statep = set | (lasttwo << 6)
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>
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