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gconv_simple.c
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/* Simple transformations functions.
Copyright (C) 1997-2005, 2007, 2008, 2009, 2011, 2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <[email protected]>, 1997.
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
<http://www.gnu.org/licenses/>. */
#include <byteswap.h>
#include <dlfcn.h>
#include <endian.h>
#include <errno.h>
#include <gconv.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <sys/param.h>
#include <gconv_int.h>
#define BUILTIN_ALIAS(s1, s2) /* nothing */
#define BUILTIN_TRANSFORMATION(From, To, Cost, Name, Fct, BtowcFct, \
MinF, MaxF, MinT, MaxT) \
extern int Fct (struct __gconv_step *, struct __gconv_step_data *, \
const unsigned char **, const unsigned char *, \
unsigned char **, size_t *, int, int);
#include "gconv_builtin.h"
#ifndef EILSEQ
# define EILSEQ EINVAL
#endif
/* Specialized conversion function for a single byte to INTERNAL, recognizing
only ASCII characters. */
wint_t
__gconv_btwoc_ascii (struct __gconv_step *step, unsigned char c)
{
if (c < 0x80)
return c;
else
return WEOF;
}
/* Transform from the internal, UCS4-like format, to UCS4. The
difference between the internal ucs4 format and the real UCS4
format is, if any, the endianess. The Unicode/ISO 10646 says that
unless some higher protocol specifies it differently, the byte
order is big endian.*/
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP internal_ucs4_loop
#define TO_LOOP internal_ucs4_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_internal_ucs4
static inline int
__attribute ((always_inline))
internal_ucs4_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
#if __BYTE_ORDER == __LITTLE_ENDIAN
/* Sigh, we have to do some real work. */
size_t cnt;
uint32_t *outptr32 = (uint32_t *) outptr;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
*outptr32++ = bswap_32 (*(const uint32_t *) inptr);
*inptrp = inptr;
*outptrp = (unsigned char *) outptr32;
#elif __BYTE_ORDER == __BIG_ENDIAN
/* Simply copy the data. */
*inptrp = inptr + n_convert * 4;
*outptrp = __mempcpy (outptr, inptr, n_convert * 4);
#else
# error "This endianess is not supported."
#endif
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*outptrp + 4 > outend)
result = __GCONV_FULL_OUTPUT;
else
result = __GCONV_INCOMPLETE_INPUT;
return result;
}
#ifndef _STRING_ARCH_unaligned
static inline int
__attribute ((always_inline))
internal_ucs4_loop_unaligned (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
# if __BYTE_ORDER == __LITTLE_ENDIAN
/* Sigh, we have to do some real work. */
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4, outptr += 4)
{
outptr[0] = inptr[3];
outptr[1] = inptr[2];
outptr[2] = inptr[1];
outptr[3] = inptr[0];
}
*inptrp = inptr;
*outptrp = outptr;
# elif __BYTE_ORDER == __BIG_ENDIAN
/* Simply copy the data. */
*inptrp = inptr + n_convert * 4;
*outptrp = __mempcpy (outptr, inptr, n_convert * 4);
# else
# error "This endianess is not supported."
# endif
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*outptrp + 4 > outend)
result = __GCONV_FULL_OUTPUT;
else
result = __GCONV_INCOMPLETE_INPUT;
return result;
}
#endif
static inline int
__attribute ((always_inline))
internal_ucs4_loop_single (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
size_t cnt = state->__count & 7;
while (*inptrp < inend && cnt < 4)
state->__value.__wchb[cnt++] = *(*inptrp)++;
if (__builtin_expect (cnt < 4, 0))
{
/* Still not enough bytes. Store the ones in the input buffer. */
state->__count &= ~7;
state->__count |= cnt;
return __GCONV_INCOMPLETE_INPUT;
}
#if __BYTE_ORDER == __LITTLE_ENDIAN
(*outptrp)[0] = state->__value.__wchb[3];
(*outptrp)[1] = state->__value.__wchb[2];
(*outptrp)[2] = state->__value.__wchb[1];
(*outptrp)[3] = state->__value.__wchb[0];
#elif __BYTE_ORDER == __BIG_ENDIAN
/* XXX unaligned */
(*outptrp)[0] = state->__value.__wchb[0];
(*outptrp)[1] = state->__value.__wchb[1];
(*outptrp)[2] = state->__value.__wchb[2];
(*outptrp)[3] = state->__value.__wchb[3];
#else
# error "This endianess is not supported."
#endif
*outptrp += 4;
/* Clear the state buffer. */
state->__count &= ~7;
return __GCONV_OK;
}
#include <iconv/skeleton.c>
/* Transform from UCS4 to the internal, UCS4-like format. Unlike
for the other direction we have to check for correct values here. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP ucs4_internal_loop
#define TO_LOOP ucs4_internal_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_ucs4_internal
static inline int
__attribute ((always_inline))
ucs4_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
{
uint32_t inval;
#if __BYTE_ORDER == __LITTLE_ENDIAN
inval = bswap_32 (*(const uint32_t *) inptr);
#else
inval = *(const uint32_t *) inptr;
#endif
if (__builtin_expect (inval > 0x7fffffff, 0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (irreversible == NULL)
/* We are transliterating, don't try to correct anything. */
return __GCONV_ILLEGAL_INPUT;
if (flags & __GCONV_IGNORE_ERRORS)
{
/* Just ignore this character. */
++*irreversible;
continue;
}
*inptrp = inptr;
*outptrp = outptr;
return __GCONV_ILLEGAL_INPUT;
}
*((uint32_t *) outptr) = inval;
outptr += sizeof (uint32_t);
}
*inptrp = inptr;
*outptrp = outptr;
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*outptrp + 4 > outend)
result = __GCONV_FULL_OUTPUT;
else
result = __GCONV_INCOMPLETE_INPUT;
return result;
}
#ifndef _STRING_ARCH_unaligned
static inline int
__attribute ((always_inline))
ucs4_internal_loop_unaligned (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
{
if (__builtin_expect (inptr[0] > 0x80, 0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (irreversible == NULL)
/* We are transliterating, don't try to correct anything. */
return __GCONV_ILLEGAL_INPUT;
if (flags & __GCONV_IGNORE_ERRORS)
{
/* Just ignore this character. */
++*irreversible;
continue;
}
*inptrp = inptr;
*outptrp = outptr;
return __GCONV_ILLEGAL_INPUT;
}
# if __BYTE_ORDER == __LITTLE_ENDIAN
outptr[3] = inptr[0];
outptr[2] = inptr[1];
outptr[1] = inptr[2];
outptr[0] = inptr[3];
# else
outptr[0] = inptr[0];
outptr[1] = inptr[1];
outptr[2] = inptr[2];
outptr[3] = inptr[3];
# endif
outptr += 4;
}
*inptrp = inptr;
*outptrp = outptr;
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*outptrp + 4 > outend)
result = __GCONV_FULL_OUTPUT;
else
result = __GCONV_INCOMPLETE_INPUT;
return result;
}
#endif
static inline int
__attribute ((always_inline))
ucs4_internal_loop_single (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
int flags = step_data->__flags;
size_t cnt = state->__count & 7;
while (*inptrp < inend && cnt < 4)
state->__value.__wchb[cnt++] = *(*inptrp)++;
if (__builtin_expect (cnt < 4, 0))
{
/* Still not enough bytes. Store the ones in the input buffer. */
state->__count &= ~7;
state->__count |= cnt;
return __GCONV_INCOMPLETE_INPUT;
}
if (__builtin_expect (((unsigned char *) state->__value.__wchb)[0] > 0x80,
0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (!(flags & __GCONV_IGNORE_ERRORS))
{
*inptrp -= cnt - (state->__count & 7);
return __GCONV_ILLEGAL_INPUT;
}
}
else
{
#if __BYTE_ORDER == __LITTLE_ENDIAN
(*outptrp)[0] = state->__value.__wchb[3];
(*outptrp)[1] = state->__value.__wchb[2];
(*outptrp)[2] = state->__value.__wchb[1];
(*outptrp)[3] = state->__value.__wchb[0];
#elif __BYTE_ORDER == __BIG_ENDIAN
(*outptrp)[0] = state->__value.__wchb[0];
(*outptrp)[1] = state->__value.__wchb[1];
(*outptrp)[2] = state->__value.__wchb[2];
(*outptrp)[3] = state->__value.__wchb[3];
#endif
*outptrp += 4;
}
/* Clear the state buffer. */
state->__count &= ~7;
return __GCONV_OK;
}
#include <iconv/skeleton.c>
/* Similarly for the little endian form. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP internal_ucs4le_loop
#define TO_LOOP internal_ucs4le_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_internal_ucs4le
static inline int
__attribute ((always_inline))
internal_ucs4le_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
#if __BYTE_ORDER == __BIG_ENDIAN
/* Sigh, we have to do some real work. */
size_t cnt;
uint32_t *outptr32 = (uint32_t *) outptr;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
*outptr32++ = bswap_32 (*(const uint32_t *) inptr);
outptr = (unsigned char *) outptr32;
*inptrp = inptr;
*outptrp = outptr;
#elif __BYTE_ORDER == __LITTLE_ENDIAN
/* Simply copy the data. */
*inptrp = inptr + n_convert * 4;
*outptrp = __mempcpy (outptr, inptr, n_convert * 4);
#else
# error "This endianess is not supported."
#endif
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*outptrp + 4 > outend)
result = __GCONV_FULL_OUTPUT;
else
result = __GCONV_INCOMPLETE_INPUT;
return result;
}
#ifndef _STRING_ARCH_unaligned
static inline int
__attribute ((always_inline))
internal_ucs4le_loop_unaligned (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
# if __BYTE_ORDER == __BIG_ENDIAN
/* Sigh, we have to do some real work. */
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4, outptr += 4)
{
outptr[0] = inptr[3];
outptr[1] = inptr[2];
outptr[2] = inptr[1];
outptr[3] = inptr[0];
}
*inptrp = inptr;
*outptrp = outptr;
# elif __BYTE_ORDER == __LITTLE_ENDIAN
/* Simply copy the data. */
*inptrp = inptr + n_convert * 4;
*outptrp = __mempcpy (outptr, inptr, n_convert * 4);
# else
# error "This endianess is not supported."
# endif
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*inptrp + 4 > inend)
result = __GCONV_INCOMPLETE_INPUT;
else
{
assert (*outptrp + 4 > outend);
result = __GCONV_FULL_OUTPUT;
}
return result;
}
#endif
static inline int
__attribute ((always_inline))
internal_ucs4le_loop_single (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
size_t cnt = state->__count & 7;
while (*inptrp < inend && cnt < 4)
state->__value.__wchb[cnt++] = *(*inptrp)++;
if (__builtin_expect (cnt < 4, 0))
{
/* Still not enough bytes. Store the ones in the input buffer. */
state->__count &= ~7;
state->__count |= cnt;
return __GCONV_INCOMPLETE_INPUT;
}
#if __BYTE_ORDER == __BIG_ENDIAN
(*outptrp)[0] = state->__value.__wchb[3];
(*outptrp)[1] = state->__value.__wchb[2];
(*outptrp)[2] = state->__value.__wchb[1];
(*outptrp)[3] = state->__value.__wchb[0];
#else
/* XXX unaligned */
(*outptrp)[0] = state->__value.__wchb[0];
(*outptrp)[1] = state->__value.__wchb[1];
(*outptrp)[2] = state->__value.__wchb[2];
(*outptrp)[3] = state->__value.__wchb[3];
#endif
*outptrp += 4;
/* Clear the state buffer. */
state->__count &= ~7;
return __GCONV_OK;
}
#include <iconv/skeleton.c>
/* And finally from UCS4-LE to the internal encoding. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP ucs4le_internal_loop
#define TO_LOOP ucs4le_internal_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_ucs4le_internal
static inline int
__attribute ((always_inline))
ucs4le_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
{
uint32_t inval;
#if __BYTE_ORDER == __BIG_ENDIAN
inval = bswap_32 (*(const uint32_t *) inptr);
#else
inval = *(const uint32_t *) inptr;
#endif
if (__builtin_expect (inval > 0x7fffffff, 0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (irreversible == NULL)
/* We are transliterating, don't try to correct anything. */
return __GCONV_ILLEGAL_INPUT;
if (flags & __GCONV_IGNORE_ERRORS)
{
/* Just ignore this character. */
++*irreversible;
continue;
}
return __GCONV_ILLEGAL_INPUT;
}
*((uint32_t *) outptr) = inval;
outptr += sizeof (uint32_t);
}
*inptrp = inptr;
*outptrp = outptr;
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*inptrp + 4 > inend)
result = __GCONV_INCOMPLETE_INPUT;
else
{
assert (*outptrp + 4 > outend);
result = __GCONV_FULL_OUTPUT;
}
return result;
}
#ifndef _STRING_ARCH_unaligned
static inline int
__attribute ((always_inline))
ucs4le_internal_loop_unaligned (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
int result;
size_t cnt;
for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
{
if (__builtin_expect (inptr[3] > 0x80, 0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (irreversible == NULL)
/* We are transliterating, don't try to correct anything. */
return __GCONV_ILLEGAL_INPUT;
if (flags & __GCONV_IGNORE_ERRORS)
{
/* Just ignore this character. */
++*irreversible;
continue;
}
*inptrp = inptr;
*outptrp = outptr;
return __GCONV_ILLEGAL_INPUT;
}
# if __BYTE_ORDER == __BIG_ENDIAN
outptr[3] = inptr[0];
outptr[2] = inptr[1];
outptr[1] = inptr[2];
outptr[0] = inptr[3];
# else
outptr[0] = inptr[0];
outptr[1] = inptr[1];
outptr[2] = inptr[2];
outptr[3] = inptr[3];
# endif
outptr += 4;
}
*inptrp = inptr;
*outptrp = outptr;
/* Determine the status. */
if (*inptrp == inend)
result = __GCONV_EMPTY_INPUT;
else if (*inptrp + 4 > inend)
result = __GCONV_INCOMPLETE_INPUT;
else
{
assert (*outptrp + 4 > outend);
result = __GCONV_FULL_OUTPUT;
}
return result;
}
#endif
static inline int
__attribute ((always_inline))
ucs4le_internal_loop_single (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp, unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
int flags = step_data->__flags;
size_t cnt = state->__count & 7;
while (*inptrp < inend && cnt < 4)
state->__value.__wchb[cnt++] = *(*inptrp)++;
if (__builtin_expect (cnt < 4, 0))
{
/* Still not enough bytes. Store the ones in the input buffer. */
state->__count &= ~7;
state->__count |= cnt;
return __GCONV_INCOMPLETE_INPUT;
}
if (__builtin_expect (((unsigned char *) state->__value.__wchb)[3] > 0x80,
0))
{
/* The value is too large. We don't try transliteration here since
this is not an error because of the lack of possibilities to
represent the result. This is a genuine bug in the input since
UCS4 does not allow such values. */
if (!(flags & __GCONV_IGNORE_ERRORS))
return __GCONV_ILLEGAL_INPUT;
}
else
{
#if __BYTE_ORDER == __BIG_ENDIAN
(*outptrp)[0] = state->__value.__wchb[3];
(*outptrp)[1] = state->__value.__wchb[2];
(*outptrp)[2] = state->__value.__wchb[1];
(*outptrp)[3] = state->__value.__wchb[0];
#else
(*outptrp)[0] = state->__value.__wchb[0];
(*outptrp)[1] = state->__value.__wchb[1];
(*outptrp)[2] = state->__value.__wchb[2];
(*outptrp)[3] = state->__value.__wchb[3];
#endif
*outptrp += 4;
}
/* Clear the state buffer. */
state->__count &= ~7;
return __GCONV_OK;
}
#include <iconv/skeleton.c>
/* Convert from ISO 646-IRV to the internal (UCS4-like) format. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 1
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP ascii_internal_loop
#define TO_LOOP ascii_internal_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_ascii_internal
#define ONE_DIRECTION 1
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
if (__builtin_expect (*inptr > '\x7f', 0)) \
{ \
/* The value is too large. We don't try transliteration here since \
this is not an error because of the lack of possibilities to \
represent the result. This is a genuine bug in the input since \
ASCII does not allow such values. */ \
STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
else \
{ \
/* It's an one byte sequence. */ \
*((uint32_t *) outptr) = *inptr++; \
outptr += sizeof (uint32_t); \
} \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from the internal (UCS4-like) format to ISO 646-IRV. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 1
#define FROM_DIRECTION 1
#define FROM_LOOP internal_ascii_loop
#define TO_LOOP internal_ascii_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_internal_ascii
#define ONE_DIRECTION 1
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
if (__builtin_expect (*((const uint32_t *) inptr) > 0x7f, 0)) \
{ \
UNICODE_TAG_HANDLER (*((const uint32_t *) inptr), 4); \
STANDARD_TO_LOOP_ERR_HANDLER (4); \
} \
else \
{ \
/* It's an one byte sequence. */ \
*outptr++ = *((const uint32_t *) inptr); \
inptr += sizeof (uint32_t); \
} \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from the internal (UCS4-like) format to UTF-8. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 4
#define MIN_NEEDED_TO 1
#define MAX_NEEDED_TO 6
#define FROM_DIRECTION 1
#define FROM_LOOP internal_utf8_loop
#define TO_LOOP internal_utf8_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_internal_utf8
#define ONE_DIRECTION 1
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define MAX_NEEDED_OUTPUT MAX_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t wc = *((const uint32_t *) inptr); \
\
if (__builtin_expect (wc < 0x80, 1)) \
/* It's an one byte sequence. */ \
*outptr++ = (unsigned char) wc; \
else if (__builtin_expect (wc <= 0x7fffffff, 1)) \
{ \
size_t step; \
unsigned char *start; \
\
for (step = 2; step < 6; ++step) \
if ((wc & (~(uint32_t)0 << (5 * step + 1))) == 0) \
break; \
\
if (__builtin_expect (outptr + step > outend, 0)) \
{ \
/* Too long. */ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
start = outptr; \
*outptr = (unsigned char) (~0xff >> step); \
outptr += step; \
do \
{ \
start[--step] = 0x80 | (wc & 0x3f); \
wc >>= 6; \
} \
while (step > 1); \
start[0] |= wc; \
} \
else \
{ \
STANDARD_TO_LOOP_ERR_HANDLER (4); \
} \
\
inptr += 4; \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from UTF-8 to the internal (UCS4-like) format. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 6
#define MIN_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP utf8_internal_loop
#define TO_LOOP utf8_internal_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_utf8_internal
#define ONE_DIRECTION 1
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
/* Next input byte. */ \
uint32_t ch = *inptr; \
\
if (__builtin_expect (ch < 0x80, 1)) \
{ \
/* One byte sequence. */ \
++inptr; \
} \
else \
{ \
uint_fast32_t cnt; \
uint_fast32_t i; \
\
if (ch >= 0xc2 && ch < 0xe0) \
{ \
/* We expect two bytes. The first byte cannot be 0xc0 or 0xc1, \
otherwise the wide character could have been represented \
using a single byte. */ \
cnt = 2; \
ch &= 0x1f; \
} \
else if (__builtin_expect ((ch & 0xf0) == 0xe0, 1)) \
{ \
/* We expect three bytes. */ \
cnt = 3; \
ch &= 0x0f; \
} \
else if (__builtin_expect ((ch & 0xf8) == 0xf0, 1)) \
{ \
/* We expect four bytes. */ \
cnt = 4; \
ch &= 0x07; \
} \
else if (__builtin_expect ((ch & 0xfc) == 0xf8, 1)) \
{ \
/* We expect five bytes. */ \
cnt = 5; \
ch &= 0x03; \
} \
else if (__builtin_expect ((ch & 0xfe) == 0xfc, 1)) \
{ \
/* We expect six bytes. */ \
cnt = 6; \
ch &= 0x01; \
} \
else \
{ \
/* Search the end of this ill-formed UTF-8 character. This \
is the next byte with (x & 0xc0) != 0x80. */ \
i = 0; \
do \
++i; \
while (inptr + i < inend \
&& (*(inptr + i) & 0xc0) == 0x80 \
&& i < 5); \