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Simplify char16_t implementation

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This commit is contained in:
Ulrich Drepper 2012-01-08 07:19:21 -05:00
parent a0da5fe1e4
commit d3ed722566
10 changed files with 59 additions and 642 deletions
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12
ChangeLog
View File

@ -1,5 +1,17 @@
2012-01-08 Ulrich Drepper <drepper@gmail.com>
* wcsmbs/mbrtoc16.c: Implement using towc function.
* wcsmbs/wcsmbsload.h: No need for toc16 and fromc16 functions.
* wcsmbs/wcsmbsload.c: Likewise.
* iconv/gconv_simple.c: Likewise.
* iconv/gconv_int.h: Likewise.
* iconv/gconv_builtin.h: Likewise.
* iconv/iconv_prog.c: Remove CHAR16 handling.
* wcsmbs/c16rtomb.c: Remove #if 0'ed code.
* wcsmbs/mbrtowc.c: Better check for invalid inputs.
* configure.in: Remove --with-elf and --enable-bounded options.
Dont set base_machine for ia64. More non-ELF conditions removed.
Remove testing and setting of leading underscore information.

14
iconv/gconv_builtin.h
View File

@ -122,17 +122,3 @@ BUILTIN_TRANSFORMATION ("INTERNAL", "UNICODEBIG//", 1,
__gconv_transform_internal_ucs2reverse, NULL,
4, 4, 2, 2)
#endif
BUILTIN_TRANSFORMATION ("ANSI_X3.4-1968//", "CHAR16", 1, "=ascii->CHAR16",
__gconv_transform_ascii_char16, NULL, 1, 1, 2, 4)
BUILTIN_TRANSFORMATION ("CHAR16", "ANSI_X3.4-1968//", 1, "=CHAR16->ascii",
__gconv_transform_char16_ascii, NULL, 2, 4, 1, 1)
BUILTIN_TRANSFORMATION ("ISO-10646/UTF8/", "CHAR16", 1, "=utf8->CHAR16",
__gconv_transform_utf8_char16, NULL, 1, 6, 2, 4)
BUILTIN_TRANSFORMATION ("CHAR16", "ISO-10646/UTF8/", 1, "=CHAR16->utf8",
__gconv_transform_char16_utf8, NULL, 2, 4, 1, 6)

4
iconv/gconv_int.h
View File

@ -303,10 +303,6 @@ __BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4le);
__BUILTIN_TRANSFORM (__gconv_transform_ucs4le_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_utf16);
__BUILTIN_TRANSFORM (__gconv_transform_utf16_internal);
__BUILTIN_TRANSFORM (__gconv_transform_ascii_char16);
__BUILTIN_TRANSFORM (__gconv_transform_char16_ascii);
__BUILTIN_TRANSFORM (__gconv_transform_utf8_char16);
__BUILTIN_TRANSFORM (__gconv_transform_char16_utf8);
# undef __BUITLIN_TRANSFORM
/* Specialized conversion function for a single byte to INTERNAL, recognizing

388
iconv/gconv_simple.c
View File

@ -1321,391 +1321,3 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from ISO 646-IRV to the char16_t format. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 1
#define MIN_NEEDED_TO 2
#define FROM_DIRECTION 1
#define FROM_LOOP ascii_char16_loop
#define TO_LOOP ascii_char16_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_ascii_char16
#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. */ \
*((uint16_t *) outptr) = *inptr++; \
outptr += sizeof (uint16_t); \
} \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from the char16_t format to ISO 646-IRV. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 2
#define MIN_NEEDED_TO 1
#define FROM_DIRECTION 1
#define FROM_LOOP char16_ascii_loop
#define TO_LOOP char16_ascii_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_char16_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 uint16_t *) inptr) > 0x7f, 0)) \
{ \
UNICODE_TAG_HANDLER (*((const uint16_t *) inptr), 2); \
STANDARD_TO_LOOP_ERR_HANDLER (2); \
} \
else \
{ \
/* It's an one byte sequence. */ \
*outptr++ = *((const uint16_t *) inptr); \
inptr += 2; \
} \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from the char16_t format to UTF-8. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 2
#define MAX_NEEDED_FROM 4
#define MIN_NEEDED_TO 1
#define MAX_NEEDED_TO 6
#define FROM_DIRECTION 1
#define FROM_LOOP char16_utf8_loop
#define TO_LOOP char16_utf8_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_char16_utf8
#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 MAX_NEEDED_OUTPUT MAX_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
/* Yes, reading a 16-bit number and storing it as 32-bit is correct. */ \
uint32_t wc = *((const uint16_t *) inptr); \
inptr += 2; \
\
if (__builtin_expect (wc < 0x80, 1)) \
/* It's an one byte sequence. */ \
*outptr++ = (unsigned char) wc; \
else \
{ \
size_t step; \
\
if (__builtin_expect (wc < 0xd800 || wc > 0xdfff, 1)) \
step = wc < 0x800 ? 2 : 3; \
else \
{ \
if (__builtin_expect (inptr + 2 > inend, 0)) \
{ \
/* We don't have enough input for another complete input \
character. */ \
inptr -= 2; \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
uint32_t sec = *((const uint16_t *) inptr); \
if (__builtin_expect (sec < 0xdc00, 0) \
|| __builtin_expect (sec > 0xdfff, 0)) \
{ \
/* This is no valid second word for a surrogate. */ \
STANDARD_FROM_LOOP_ERR_HANDLER (2); \
} \
inptr += 2; \
wc = ((wc - 0xd7c0) << 10) + (sec - 0xdc00); \
\
step = wc < 0x200000 ? 4 : 5; \
} \
\
if (__builtin_expect (outptr + step > outend, 0)) \
{ \
/* Too long. */ \
result = __GCONV_FULL_OUTPUT; \
inptr -= step >= 4 ? 4 : 2; \
break; \
} \
\
unsigned char *start = outptr; \
*outptr = (unsigned char) (~0xff >> step); \
outptr += step; \
do \
{ \
start[--step] = 0x80 | (wc & 0x3f); \
wc >>= 6; \
} \
while (step > 1); \
start[0] |= wc; \
} \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
#include <iconv/skeleton.c>
/* Convert from UTF-8 to the char16_t format. */
#define DEFINE_INIT 0
#define DEFINE_FINI 0
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 6
#define MIN_NEEDED_TO 2
#define MAX_NEEDED_TO 4
#define FROM_DIRECTION 1
#define FROM_LOOP utf8_char16_loop
#define TO_LOOP utf8_char16_loop /* This is not used. */
#define FUNCTION_NAME __gconv_transform_utf8_char16
#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. */ \
*((uint16_t *) outptr) = ch; \
outptr += 2; \
++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); \
\
errout: \
STANDARD_FROM_LOOP_ERR_HANDLER (i); \
} \
\
if (__builtin_expect (inptr + cnt > inend, 0)) \
{ \
/* We don't have enough input. But before we report that check \
that all the bytes are correct. */ \
for (i = 1; inptr + i < inend; ++i) \
if ((inptr[i] & 0xc0) != 0x80) \
break; \
\
if (__builtin_expect (inptr + i == inend, 1)) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
goto errout; \
} \
\
/* Read the possible remaining bytes. */ \
for (i = 1; i < cnt; ++i) \
{ \
uint32_t byte = inptr[i]; \
\
if ((byte & 0xc0) != 0x80) \
/* This is an illegal encoding. */ \
break; \
\
ch <<= 6; \
ch |= byte & 0x3f; \
} \
\
/* If i < cnt, some trail byte was not >= 0x80, < 0xc0. \
If cnt > 2 and ch < 2^(5*cnt-4), the wide character ch could \
have been represented with fewer than cnt bytes. */ \
if (i < cnt || (cnt > 2 && (ch >> (5 * cnt - 4)) == 0) \
/* Do not accept UTF-16 surrogates. */ \
|| (ch >= 0xd800 && ch <= 0xdfff)) \
{ \
/* This is an illegal encoding. */ \
goto errout; \
} \
\
/* Now adjust the pointers and store the result. */ \
if (ch < 0x10000) \
*((uint16_t *) outptr) = ch; \
else \
{ \
if (__builtin_expect (outptr + 4 > outend, 0)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
*((uint16_t *) outptr) = 0xd7c0 + (ch >> 10); \
outptr += 2; \
*((uint16_t *) outptr) = 0xdc00 + (ch & 0x3ff); \
} \
\
outptr += 2; \
inptr += cnt; \
} \
}
#define LOOP_NEED_FLAGS
#define STORE_REST \
{ \
/* We store the remaining bytes while converting them into the UCS4 \
format. We can assume that the first byte in the buffer is \
correct and that it requires a larger number of bytes than there \
are in the input buffer. */ \
wint_t ch = **inptrp; \
size_t cnt, r; \
\
state->__count = inend - *inptrp; \
\
assert (ch != 0xc0 && ch != 0xc1); \
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 \
{ \
/* We expect six bytes. */ \
cnt = 6; \
ch &= 0x01; \
} \
\
/* The first byte is already consumed. */ \
r = cnt - 1; \
while (++(*inptrp) < inend) \
{ \
ch <<= 6; \
ch |= **inptrp & 0x3f; \
--r; \
} \
\
/* Shift for the so far missing bytes. */ \
ch <<= r * 6; \
\
/* Store the number of bytes expected for the entire sequence. */ \
state->__count |= cnt << 8; \
\
/* Store the value. */ \
state->__value.__wch = ch; \
}
#define UNPACK_BYTES \
{ \
static const unsigned char inmask[5] = { 0xc0, 0xe0, 0xf0, 0xf8, 0xfc }; \
wint_t wch = state->__value.__wch; \
size_t ntotal = state->__count >> 8; \
\
inlen = state->__count & 255; \
\
bytebuf[0] = inmask[ntotal - 2]; \
\
do \
{ \
if (--ntotal < inlen) \
bytebuf[ntotal] = 0x80 | (wch & 0x3f); \
wch >>= 6; \
} \
while (ntotal > 1); \
\
bytebuf[0] |= wch; \
}
#define CLEAR_STATE \
state->__count = 0
#include <iconv/loop.c>
#include <iconv/skeleton.c>

12
iconv/iconv_prog.c
View File

@ -719,12 +719,9 @@ add_known_names (struct gconv_module *node)
add_known_names (node->right);
do
{
if (strcmp (node->from_string, "INTERNAL") != 0
&& strcmp (node->from_string, "CHAR16") != 0)
tsearch (node->from_string, &printlist,
(__compar_fn_t) strverscmp);
if (strcmp (node->to_string, "INTERNAL") != 0
&& strcmp (node->to_string, "CHAR16") != 0)
if (strcmp (node->from_string, "INTERNAL") != 0)
tsearch (node->from_string, &printlist, (__compar_fn_t) strverscmp);
if (strcmp (node->to_string, "INTERNAL") != 0)
tsearch (node->to_string, &printlist, (__compar_fn_t) strverscmp);
node = node->same;
@ -750,8 +747,7 @@ insert_cache (void)
{
const char *str = strtab + hashtab[cnt].string_offset;
if (strcmp (str, "INTERNAL") != 0
&& strcmp (str, "CHAR16") != 0)
if (strcmp (str, "INTERNAL") != 0)
tsearch (str, &printlist, (__compar_fn_t) strverscmp);
}
}

97
wcsmbs/c16rtomb.c
View File

@ -17,25 +17,8 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <assert.h>
#include <dlfcn.h>
#include <errno.h>
#include <gconv.h>
#include <stdlib.h>
#include <uchar.h>
#include <wcsmbsload.h>
#include <sysdep.h>
#ifndef EILSEQ
# define EILSEQ EINVAL
#endif
#if __STDC__ >= 201000L
# define u(c) U##c
#else
# define u(c) L##c
#endif
#include <wchar.h>
/* This is the private state used if PS is NULL. */
@ -44,85 +27,7 @@ static mbstate_t state;
size_t
c16rtomb (char *s, char16_t c16, mbstate_t *ps)
{
#if 1
// XXX The ISO C 11 spec I have does not say anything about handling
// XXX surrogates in this interface.
return wcrtomb (s, c16, ps ?: &state);
#else
char buf[MB_LEN_MAX];
struct __gconv_step_data data;
int status;
size_t result;
size_t dummy;
const struct gconv_fcts *fcts;
/* Set information for this step. */
data.__invocation_counter = 0;
data.__internal_use = 1;
data.__flags = __GCONV_IS_LAST;
data.__statep = ps ?: &state;
data.__trans = NULL;
/* A first special case is if S is NULL. This means put PS in the
initial state. */
if (s == NULL)
{
s = buf;
c16 = u('\0');
}
/* Tell where we want to have the result. */
data.__outbuf = (unsigned char *) s;
data.__outbufend = (unsigned char *) s + MB_CUR_MAX;
/* Get the conversion functions. */
fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
__gconv_fct fct = fcts->fromc16->__fct;
#ifdef PTR_DEMANGLE
if (fcts->tomb->__shlib_handle != NULL)
PTR_DEMANGLE (fct);
#endif
/* If C16 is the NUL character we write into the output buffer
the byte sequence necessary for PS to get into the initial
state, followed by a NUL byte. */
if (c16 == L'\0')
{
status = DL_CALL_FCT (fct, (fcts->fromc16, &data, NULL, NULL,
NULL, &dummy, 1, 1));
if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
*data.__outbuf++ = '\0';
}
else
{
/* Do a normal conversion. */
const unsigned char *inbuf = (const unsigned char *) &c16;
status = DL_CALL_FCT (fct,
(fcts->fromc16, &data, &inbuf,
inbuf + sizeof (char16_t), NULL, &dummy,
0, 1));
}
/* There must not be any problems with the conversion but illegal input
characters. The output buffer must be large enough, otherwise the
definition of MB_CUR_MAX is not correct. All the other possible
errors also must not happen. */
assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
|| status == __GCONV_ILLEGAL_INPUT
|| status == __GCONV_INCOMPLETE_INPUT
|| status == __GCONV_FULL_OUTPUT);
if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
|| status == __GCONV_FULL_OUTPUT)
result = data.__outbuf - (unsigned char *) s;
else
{
result = (size_t) -1;
__set_errno (EILSEQ);
}
return result;
#endif
}

75
wcsmbs/mbrtoc16.c
View File

@ -30,12 +30,6 @@
# define EILSEQ EINVAL
#endif
#if __STDC__ >= 201000L
# define U(c) U##c
#else
# define U(c) L##c
#endif
/* This is the private state used if PS is NULL. */
static mbstate_t state;
@ -46,6 +40,11 @@ mbrtoc16 (char16_t *pc16, const char *s, size_t n, mbstate_t *ps)
if (ps == NULL)
ps = &state;
/* The standard text does not say that S being NULL means the state
is reset even if the second half of a surrogate still have to be
returned. In fact, the error code description indicates
otherwise. Therefore always first try to return a second
half. */
if (ps->__count & 0x80000000)
{
/* We have to return the second word for a surrogate. */
@ -55,13 +54,13 @@ mbrtoc16 (char16_t *pc16, const char *s, size_t n, mbstate_t *ps)
return (size_t) -3;
}
char16_t buf[2];
wchar_t wc;
struct __gconv_step_data data;
int status;
size_t result;
size_t dummy;
const unsigned char *inbuf, *endbuf;
unsigned char *outbuf = (unsigned char *) buf;
unsigned char *outbuf = (unsigned char *) &wc;
const struct gconv_fcts *fcts;
/* Set information for this step. */
@ -75,14 +74,14 @@ mbrtoc16 (char16_t *pc16, const char *s, size_t n, mbstate_t *ps)
initial state. */
if (s == NULL)
{
outbuf = (unsigned char *) buf;
pc16 = NULL;
s = "";
n = 1;
}
/* Tell where we want the result. */
data.__outbuf = outbuf;
data.__outbufend = outbuf + sizeof (char16_t);
data.__outbufend = outbuf + sizeof (wchar_t);
/* Get the conversion functions. */
fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
@ -91,28 +90,20 @@ mbrtoc16 (char16_t *pc16, const char *s, size_t n, mbstate_t *ps)
inbuf = (const unsigned char *) s;
endbuf = inbuf + n;
if (__builtin_expect (endbuf < inbuf, 0))
endbuf = (const unsigned char *) ~(uintptr_t) 0;
__gconv_fct fct = fcts->toc16->__fct;
{
endbuf = (const unsigned char *) ~(uintptr_t) 0;
if (endbuf == inbuf)
goto ilseq;
}
__gconv_fct fct = fcts->towc->__fct;
#ifdef PTR_DEMANGLE
if (fcts->toc16->__shlib_handle != NULL)
if (fcts->towc->__shlib_handle != NULL)
PTR_DEMANGLE (fct);
#endif
/* We first have to check whether the character can be represented
without a surrogate. If we immediately pass in a buffer large
enough to hold two char16_t values and the first character does
not require a surrogate the routine will try to convert more
input if N is larger then needed for the first character. */
status = DL_CALL_FCT (fct, (fcts->toc16, &data, &inbuf, endbuf,
status = DL_CALL_FCT (fct, (fcts->towc, &data, &inbuf, endbuf,
NULL, &dummy, 0, 1));
if (status == __GCONV_FULL_OUTPUT && data.__outbuf == outbuf)
{
data.__outbufend = outbuf + 2 * sizeof (char16_t);
status = DL_CALL_FCT (fct, (fcts->toc16, &data, &inbuf, endbuf,
NULL, &dummy, 0, 1));
}
/* There must not be any problems with the conversion but illegal input
characters. The output buffer must be large enough, otherwise the
definition of MB_CUR_MAX is not correct. All the other possible
@ -125,33 +116,35 @@ mbrtoc16 (char16_t *pc16, const char *s, size_t n, mbstate_t *ps)
if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
|| status == __GCONV_FULL_OUTPUT)
{
if (pc16 != NULL)
*pc16 = buf[0];
result = inbuf - (const unsigned char *) s;
if (data.__outbuf != outbuf && *(char16_t *) outbuf == U('\0'))
if (wc < 0x10000)
{
/* The converted character is the NUL character. */
assert (__mbsinit (data.__statep));
result = 0;
if (pc16 != NULL)
*pc16 = wc;
if (data.__outbuf != outbuf && wc == L'\0')
{
/* The converted character is the NUL character. */
assert (__mbsinit (data.__statep));
result = 0;
}
}
else
{
result = inbuf - (const unsigned char *) s;
/* This is a surrogate. */
if (pc16 != NULL)
*pc16 = 0xd7c0 + (wc >> 10);
if (data.__outbuf != outbuf + 2)
{
/* This is a surrogate. */
assert (buf[0] >= 0xd800 && buf[0] <= 0xdfff);
assert (buf[1] >= 0xdc00 && buf[1] <= 0xdfff);
ps->__count |= 0x80000000;
ps->__value.__wch = buf[1];
}
ps->__count |= 0x80000000;
ps->__value.__wch = 0xdc00 + (wc & 0x3ff);
}
}
else if (status == __GCONV_INCOMPLETE_INPUT)
result = (size_t) -2;
else
{
ilseq:
result = (size_t) -1;
__set_errno (EILSEQ);
}

9
wcsmbs/mbrtowc.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2005, 2011
/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2005, 2011, 2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
@ -73,7 +73,11 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
inbuf = (const unsigned char *) s;
endbuf = inbuf + n;
if (__builtin_expect (endbuf < inbuf, 0))
endbuf = (const unsigned char *) ~(uintptr_t) 0;
{
endbuf = (const unsigned char *) ~(uintptr_t) 0;
if (endbuf == inbuf)
goto ilseq;
}
__gconv_fct fct = fcts->towc->__fct;
#ifdef PTR_DEMANGLE
if (fcts->towc->__shlib_handle != NULL)
@ -108,6 +112,7 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
result = (size_t) -2;
else
{
ilseq:
result = (size_t) -1;
__set_errno (EILSEQ);
}

85
wcsmbs/wcsmbsload.c
View File

@ -68,44 +68,6 @@ static const struct __gconv_step to_mb =
.__data = NULL
};
static const struct __gconv_step to_c16 =
{
.__shlib_handle = NULL,
.__modname = NULL,
.__counter = INT_MAX,
.__from_name = (char *) "ANSI_X3.4-1968//TRANSLIT",
.__to_name = (char *) "UTF-16//",
.__fct = __gconv_transform_ascii_char16,
.__btowc_fct = NULL,
.__init_fct = NULL,
.__end_fct = NULL,
.__min_needed_from = 1,
.__max_needed_from = 1,
.__min_needed_to = 4,
.__max_needed_to = 4,
.__stateful = 0,
.__data = NULL
};
static const struct __gconv_step from_c16 =
{
.__shlib_handle = NULL,
.__modname = NULL,
.__counter = INT_MAX,
.__from_name = (char *) "UTF-16//",
.__to_name = (char *) "ANSI_X3.4-1968//TRANSLIT",
.__fct = __gconv_transform_char16_ascii,
.__btowc_fct = NULL,
.__init_fct = NULL,
.__end_fct = NULL,
.__min_needed_from = 4,
.__max_needed_from = 4,
.__min_needed_to = 1,
.__max_needed_to = 1,
.__stateful = 0,
.__data = NULL
};
/* For the default locale we only have to handle ANSI_X3.4-1968. */
const struct gconv_fcts __wcsmbs_gconv_fcts_c =
@ -114,11 +76,6 @@ const struct gconv_fcts __wcsmbs_gconv_fcts_c =
.towc_nsteps = 1,
.tomb = (struct __gconv_step *) &to_mb,
.tomb_nsteps = 1,
.toc16 = (struct __gconv_step *) &to_c16,
.toc16_nsteps = 1,
.fromc16 = (struct __gconv_step *) &from_c16,
.fromc16_nsteps = 1,
};
@ -234,24 +191,9 @@ __wcsmbs_load_conv (struct __locale_data *new_category)
new_fcts->tomb = __wcsmbs_getfct (complete_name, "INTERNAL",
&new_fcts->tomb_nsteps);
if (new_fcts->tomb != NULL)
{
new_fcts->toc16 = __wcsmbs_getfct ("CHAR16", complete_name,
&new_fcts->toc16_nsteps);
if (new_fcts->toc16 != NULL)
new_fcts->fromc16 = __wcsmbs_getfct (complete_name, "CHAR16",
&new_fcts->fromc16_nsteps);
else
{
__gconv_close_transform (new_fcts->toc16, new_fcts->toc16_nsteps);
new_fcts->toc16 = NULL;
}
}
/* If any of the conversion functions is not available we don't
use any since this would mean we cannot convert back and
forth.*/
forth. NB: NEW_FCTS was allocated with calloc. */
if (new_fcts->tomb == NULL)
{
if (new_fcts->towc != NULL)
@ -264,12 +206,6 @@ __wcsmbs_load_conv (struct __locale_data *new_category)
}
else
{
// XXX At least for now we live with the CHAR16 not being available.
if (new_fcts->toc16 == NULL)
new_fcts->toc16 = __wcsmbs_gconv_fcts_c.toc16;
if (new_fcts->fromc16 == NULL)
new_fcts->fromc16 = __wcsmbs_gconv_fcts_c.fromc16;
new_category->private.ctype = new_fcts;
new_category->private.cleanup = &_nl_cleanup_ctype;
}
@ -297,10 +233,6 @@ __wcsmbs_clone_conv (struct gconv_fcts *copy)
++copy->towc->__counter;
if (copy->tomb->__shlib_handle != NULL)
++copy->tomb->__counter;
if (copy->toc16->__shlib_handle != NULL)
++copy->toc16->__counter;
if (copy->fromc16->__shlib_handle != NULL)
++copy->fromc16->__counter;
}
@ -320,19 +252,6 @@ __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
return 1;
}
copy->fromc16 = __wcsmbs_getfct (name, "CHAR16", &copy->fromc16_nsteps);
if (copy->fromc16 == NULL)
copy->toc16 = NULL;
else
{
copy->toc16 = __wcsmbs_getfct ("CHAR16", name, &copy->toc16_nsteps);
if (copy->toc16 == NULL)
{
__gconv_close_transform (copy->fromc16, copy->fromc16_nsteps);
copy->fromc16 = NULL;
}
}
return 0;
}
@ -348,8 +267,6 @@ _nl_cleanup_ctype (struct __locale_data *locale)
/* Free the old conversions. */
__gconv_close_transform (data->tomb, data->tomb_nsteps);
__gconv_close_transform (data->towc, data->towc_nsteps);
__gconv_close_transform (data->fromc16, data->fromc16_nsteps);
__gconv_close_transform (data->toc16, data->toc16_nsteps);
free ((char *) data);
}
}

5
wcsmbs/wcsmbsload.h
View File

@ -32,11 +32,6 @@ struct gconv_fcts
size_t towc_nsteps;
struct __gconv_step *tomb;
size_t tomb_nsteps;
struct __gconv_step *toc16;
size_t toc16_nsteps;
struct __gconv_step *fromc16;
size_t fromc16_nsteps;
};
/* Set of currently active conversion functions. */