Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
|
|
|
/* $FreeBSD$ */
|
|
|
|
/* $NetBSD: citrus_utf7.c,v 1.5 2006/08/23 12:57:24 tnozaki Exp $ */
|
|
|
|
|
|
|
|
/*-
|
|
|
|
* Copyright (c)2004, 2005 Citrus Project,
|
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|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
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|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
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|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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|
|
* SUCH DAMAGE.
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|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
|
|
|
|
#include <assert.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <limits.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <wchar.h>
|
|
|
|
|
|
|
|
#include "citrus_namespace.h"
|
|
|
|
#include "citrus_types.h"
|
|
|
|
#include "citrus_module.h"
|
|
|
|
#include "citrus_stdenc.h"
|
|
|
|
#include "citrus_utf7.h"
|
|
|
|
|
|
|
|
/* ----------------------------------------------------------------------
|
|
|
|
* private stuffs used by templates
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define EI_MASK UINT16_C(0xff)
|
|
|
|
#define EI_DIRECT UINT16_C(0x100)
|
|
|
|
#define EI_OPTION UINT16_C(0x200)
|
|
|
|
#define EI_SPACE UINT16_C(0x400)
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
uint16_t cell[0x80];
|
|
|
|
} _UTF7EncodingInfo;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
unsigned int
|
|
|
|
mode: 1, /* whether base64 mode */
|
|
|
|
bits: 4, /* need to hold 0 - 15 */
|
|
|
|
cache: 22, /* 22 = BASE64_BIT + UTF16_BIT */
|
|
|
|
surrogate: 1; /* whether surrogate pair or not */
|
|
|
|
int chlen;
|
|
|
|
char ch[4]; /* BASE64_IN, 3 * 6 = 18, most closed to UTF16_BIT */
|
|
|
|
} _UTF7State;
|
|
|
|
|
|
|
|
#define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
|
|
|
|
#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
|
|
|
|
|
|
|
|
#define _FUNCNAME(m) _citrus_UTF7_##m
|
|
|
|
#define _ENCODING_INFO _UTF7EncodingInfo
|
|
|
|
#define _ENCODING_STATE _UTF7State
|
|
|
|
#define _ENCODING_MB_CUR_MAX(_ei_) 4
|
|
|
|
#define _ENCODING_IS_STATE_DEPENDENT 1
|
|
|
|
#define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_init_state(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
_UTF7State * __restrict s)
|
|
|
|
{
|
|
|
|
|
|
|
|
memset((void *)s, 0, sizeof(*s));
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_pack_state(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
void *__restrict pspriv, const _UTF7State * __restrict s)
|
|
|
|
{
|
|
|
|
|
|
|
|
memcpy(pspriv, (const void *)s, sizeof(*s));
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_unpack_state(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
_UTF7State * __restrict s, const void * __restrict pspriv)
|
|
|
|
{
|
|
|
|
|
|
|
|
memcpy((void *)s, pspriv, sizeof(*s));
|
|
|
|
}
|
|
|
|
|
|
|
|
static const char base64[] =
|
|
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
|
|
"abcdefghijklmnopqrstuvwxyz"
|
|
|
|
"0123456789+/";
|
|
|
|
|
|
|
|
static const char direct[] =
|
|
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
|
|
"abcdefghijklmnopqrstuvwxyz"
|
|
|
|
"0123456789(),-./:?";
|
|
|
|
|
|
|
|
static const char option[] = "!\"#$%&';<=>@[]^_`{|}";
|
|
|
|
static const char spaces[] = " \t\r\n";
|
|
|
|
|
|
|
|
#define BASE64_BIT 6
|
|
|
|
#define UTF16_BIT 16
|
|
|
|
|
|
|
|
#define BASE64_MAX 0x3f
|
|
|
|
#define UTF16_MAX UINT16_C(0xffff)
|
|
|
|
#define UTF32_MAX UINT32_C(0x10ffff)
|
|
|
|
|
|
|
|
#define BASE64_IN '+'
|
|
|
|
#define BASE64_OUT '-'
|
|
|
|
|
|
|
|
#define SHIFT7BIT(c) ((c) >> 7)
|
|
|
|
#define ISSPECIAL(c) ((c) == '\0' || (c) == BASE64_IN)
|
|
|
|
|
|
|
|
#define FINDLEN(ei, c) \
|
|
|
|
(SHIFT7BIT((c)) ? -1 : (((ei)->cell[(c)] & EI_MASK) - 1))
|
|
|
|
|
|
|
|
#define ISDIRECT(ei, c) (!SHIFT7BIT((c)) && (ISSPECIAL((c)) || \
|
|
|
|
ei->cell[(c)] & (EI_DIRECT | EI_OPTION | EI_SPACE)))
|
|
|
|
|
|
|
|
#define ISSAFE(ei, c) (!SHIFT7BIT((c)) && (ISSPECIAL((c)) || \
|
|
|
|
(c < 0x80 && ei->cell[(c)] & (EI_DIRECT | EI_SPACE))))
|
|
|
|
|
|
|
|
/* surrogate pair */
|
|
|
|
#define SRG_BASE UINT32_C(0x10000)
|
|
|
|
#define HISRG_MIN UINT16_C(0xd800)
|
|
|
|
#define HISRG_MAX UINT16_C(0xdbff)
|
|
|
|
#define LOSRG_MIN UINT16_C(0xdc00)
|
|
|
|
#define LOSRG_MAX UINT16_C(0xdfff)
|
|
|
|
|
|
|
|
static int
|
|
|
|
_citrus_UTF7_mbtoutf16(_UTF7EncodingInfo * __restrict ei,
|
2013-07-03 18:27:45 +00:00
|
|
|
uint16_t * __restrict u16, const char ** __restrict s, size_t n,
|
Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
|
|
|
_UTF7State * __restrict psenc, size_t * __restrict nresult)
|
|
|
|
{
|
|
|
|
_UTF7State sv;
|
2013-07-03 18:27:45 +00:00
|
|
|
const char *s0;
|
Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
|
|
|
int done, i, len;
|
|
|
|
|
|
|
|
s0 = *s;
|
|
|
|
sv = *psenc;
|
|
|
|
|
|
|
|
for (i = 0, done = 0; done == 0; i++) {
|
|
|
|
if (i == psenc->chlen) {
|
|
|
|
if (n-- < 1) {
|
|
|
|
*nresult = (size_t)-2;
|
|
|
|
*s = s0;
|
|
|
|
sv.chlen = psenc->chlen;
|
|
|
|
*psenc = sv;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
psenc->ch[psenc->chlen++] = *s0++;
|
|
|
|
}
|
|
|
|
if (SHIFT7BIT((int)psenc->ch[i]))
|
|
|
|
goto ilseq;
|
|
|
|
if (!psenc->mode) {
|
|
|
|
if (psenc->bits > 0 || psenc->cache > 0)
|
|
|
|
return (EINVAL);
|
|
|
|
if (psenc->ch[i] == BASE64_IN)
|
|
|
|
psenc->mode = 1;
|
|
|
|
else {
|
|
|
|
if (!ISDIRECT(ei, (int)psenc->ch[i]))
|
|
|
|
goto ilseq;
|
|
|
|
*u16 = (uint16_t)psenc->ch[i];
|
|
|
|
done = 1;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (psenc->ch[i] == BASE64_OUT && psenc->cache == 0) {
|
|
|
|
psenc->mode = 0;
|
|
|
|
*u16 = (uint16_t)BASE64_IN;
|
|
|
|
done = 1;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
len = FINDLEN(ei, (int)psenc->ch[i]);
|
|
|
|
if (len < 0) {
|
|
|
|
if (psenc->bits >= BASE64_BIT)
|
|
|
|
return (EINVAL);
|
|
|
|
psenc->mode = 0;
|
|
|
|
psenc->bits = psenc->cache = 0;
|
|
|
|
if (psenc->ch[i] != BASE64_OUT) {
|
|
|
|
if (!ISDIRECT(ei, (int)psenc->ch[i]))
|
|
|
|
goto ilseq;
|
|
|
|
*u16 = (uint16_t)psenc->ch[i];
|
|
|
|
done = 1;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
psenc->cache =
|
|
|
|
(psenc->cache << BASE64_BIT) | len;
|
|
|
|
switch (psenc->bits) {
|
|
|
|
case 0: case 2: case 4: case 6: case 8:
|
|
|
|
psenc->bits += BASE64_BIT;
|
|
|
|
break;
|
|
|
|
case 10: case 12: case 14:
|
|
|
|
psenc->bits -= (UTF16_BIT - BASE64_BIT);
|
|
|
|
*u16 = (psenc->cache >> psenc->bits) &
|
|
|
|
UTF16_MAX;
|
|
|
|
done = 1;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (psenc->chlen > i)
|
|
|
|
return (EINVAL);
|
|
|
|
psenc->chlen = 0;
|
|
|
|
*nresult = (size_t)((*u16 == 0) ? 0 : s0 - *s);
|
|
|
|
*s = s0;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
ilseq:
|
|
|
|
*nresult = (size_t)-1;
|
|
|
|
return (EILSEQ);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
_citrus_UTF7_mbrtowc_priv(_UTF7EncodingInfo * __restrict ei,
|
2013-07-03 18:27:45 +00:00
|
|
|
wchar_t * __restrict pwc, const char ** __restrict s, size_t n,
|
Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
|
|
|
_UTF7State * __restrict psenc, size_t * __restrict nresult)
|
|
|
|
{
|
2013-07-03 18:27:45 +00:00
|
|
|
const char *s0;
|
Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
|
|
|
uint32_t u32;
|
|
|
|
uint16_t hi, lo;
|
|
|
|
size_t nr, siz;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (*s == NULL) {
|
|
|
|
_citrus_UTF7_init_state(ei, psenc);
|
|
|
|
*nresult = (size_t)_ENCODING_IS_STATE_DEPENDENT;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
s0 = *s;
|
|
|
|
if (psenc->surrogate) {
|
|
|
|
hi = (psenc->cache >> 2) & UTF16_MAX;
|
|
|
|
if (hi < HISRG_MIN || hi > HISRG_MAX)
|
|
|
|
return (EINVAL);
|
|
|
|
siz = 0;
|
|
|
|
} else {
|
|
|
|
err = _citrus_UTF7_mbtoutf16(ei, &hi, &s0, n, psenc, &nr);
|
|
|
|
if (nr == (size_t)-1 || nr == (size_t)-2) {
|
|
|
|
*nresult = nr;
|
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
if (err != 0)
|
|
|
|
return (err);
|
|
|
|
n -= nr;
|
|
|
|
siz = nr;
|
|
|
|
if (hi < HISRG_MIN || hi > HISRG_MAX) {
|
|
|
|
u32 = (uint32_t)hi;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
psenc->surrogate = 1;
|
|
|
|
}
|
|
|
|
err = _citrus_UTF7_mbtoutf16(ei, &lo, &s0, n, psenc, &nr);
|
|
|
|
if (nr == (size_t)-1 || nr == (size_t)-2) {
|
|
|
|
*nresult = nr;
|
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
if (err != 0)
|
|
|
|
return (err);
|
|
|
|
hi -= HISRG_MIN;
|
|
|
|
lo -= LOSRG_MIN;
|
|
|
|
u32 = (hi << 10 | lo) + SRG_BASE;
|
|
|
|
siz += nr;
|
|
|
|
done:
|
|
|
|
*s = s0;
|
|
|
|
if (pwc != NULL)
|
|
|
|
*pwc = (wchar_t)u32;
|
|
|
|
if (u32 == (uint32_t)0) {
|
|
|
|
*nresult = (size_t)0;
|
|
|
|
_citrus_UTF7_init_state(ei, psenc);
|
|
|
|
} else {
|
|
|
|
*nresult = siz;
|
|
|
|
psenc->surrogate = 0;
|
|
|
|
}
|
|
|
|
return (err);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
_citrus_UTF7_utf16tomb(_UTF7EncodingInfo * __restrict ei,
|
|
|
|
char * __restrict s, size_t n __unused, uint16_t u16,
|
|
|
|
_UTF7State * __restrict psenc, size_t * __restrict nresult)
|
|
|
|
{
|
|
|
|
int bits, i;
|
|
|
|
|
|
|
|
if (psenc->chlen != 0 || psenc->bits > BASE64_BIT)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (ISSAFE(ei, u16)) {
|
|
|
|
if (psenc->mode) {
|
|
|
|
if (psenc->bits > 0) {
|
|
|
|
bits = BASE64_BIT - psenc->bits;
|
|
|
|
i = (psenc->cache << bits) & BASE64_MAX;
|
|
|
|
psenc->ch[psenc->chlen++] = base64[i];
|
|
|
|
psenc->bits = psenc->cache = 0;
|
|
|
|
}
|
|
|
|
if (u16 == BASE64_OUT || FINDLEN(ei, u16) >= 0)
|
|
|
|
psenc->ch[psenc->chlen++] = BASE64_OUT;
|
|
|
|
psenc->mode = 0;
|
|
|
|
}
|
|
|
|
if (psenc->bits != 0)
|
|
|
|
return (EINVAL);
|
|
|
|
psenc->ch[psenc->chlen++] = (char)u16;
|
|
|
|
if (u16 == BASE64_IN)
|
|
|
|
psenc->ch[psenc->chlen++] = BASE64_OUT;
|
|
|
|
} else {
|
|
|
|
if (!psenc->mode) {
|
|
|
|
if (psenc->bits > 0)
|
|
|
|
return (EINVAL);
|
|
|
|
psenc->ch[psenc->chlen++] = BASE64_IN;
|
|
|
|
psenc->mode = 1;
|
|
|
|
}
|
|
|
|
psenc->cache = (psenc->cache << UTF16_BIT) | u16;
|
|
|
|
bits = UTF16_BIT + psenc->bits;
|
|
|
|
psenc->bits = bits % BASE64_BIT;
|
|
|
|
while ((bits -= BASE64_BIT) >= 0) {
|
|
|
|
i = (psenc->cache >> bits) & BASE64_MAX;
|
|
|
|
psenc->ch[psenc->chlen++] = base64[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
memcpy(s, psenc->ch, psenc->chlen);
|
|
|
|
*nresult = psenc->chlen;
|
|
|
|
psenc->chlen = 0;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
_citrus_UTF7_wcrtomb_priv(_UTF7EncodingInfo * __restrict ei,
|
|
|
|
char * __restrict s, size_t n, wchar_t wchar,
|
|
|
|
_UTF7State * __restrict psenc, size_t * __restrict nresult)
|
|
|
|
{
|
|
|
|
uint32_t u32;
|
|
|
|
uint16_t u16[2];
|
|
|
|
int err, i, len;
|
|
|
|
size_t nr, siz;
|
|
|
|
|
|
|
|
u32 = (uint32_t)wchar;
|
|
|
|
if (u32 <= UTF16_MAX) {
|
|
|
|
u16[0] = (uint16_t)u32;
|
|
|
|
len = 1;
|
|
|
|
} else if (u32 <= UTF32_MAX) {
|
|
|
|
u32 -= SRG_BASE;
|
|
|
|
u16[0] = (u32 >> 10) + HISRG_MIN;
|
|
|
|
u16[1] = ((uint16_t)(u32 & UINT32_C(0x3ff))) + LOSRG_MIN;
|
|
|
|
len = 2;
|
|
|
|
} else {
|
|
|
|
*nresult = (size_t)-1;
|
|
|
|
return (EILSEQ);
|
|
|
|
}
|
|
|
|
siz = 0;
|
|
|
|
for (i = 0; i < len; ++i) {
|
|
|
|
err = _citrus_UTF7_utf16tomb(ei, s, n, u16[i], psenc, &nr);
|
|
|
|
if (err != 0)
|
|
|
|
return (err); /* XXX: state has been modified */
|
|
|
|
s += nr;
|
|
|
|
n -= nr;
|
|
|
|
siz += nr;
|
|
|
|
}
|
|
|
|
*nresult = siz;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
/* ARGSUSED */
|
|
|
|
_citrus_UTF7_put_state_reset(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
char * __restrict s, size_t n, _UTF7State * __restrict psenc,
|
|
|
|
size_t * __restrict nresult)
|
|
|
|
{
|
|
|
|
int bits, pos;
|
|
|
|
|
|
|
|
if (psenc->chlen != 0 || psenc->bits > BASE64_BIT || psenc->surrogate)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (psenc->mode) {
|
|
|
|
if (psenc->bits > 0) {
|
|
|
|
if (n-- < 1)
|
|
|
|
return (E2BIG);
|
|
|
|
bits = BASE64_BIT - psenc->bits;
|
|
|
|
pos = (psenc->cache << bits) & BASE64_MAX;
|
|
|
|
psenc->ch[psenc->chlen++] = base64[pos];
|
|
|
|
psenc->ch[psenc->chlen++] = BASE64_OUT;
|
|
|
|
psenc->bits = psenc->cache = 0;
|
|
|
|
}
|
|
|
|
psenc->mode = 0;
|
|
|
|
}
|
|
|
|
if (psenc->bits != 0)
|
|
|
|
return (EINVAL);
|
|
|
|
if (n-- < 1)
|
|
|
|
return (E2BIG);
|
|
|
|
|
|
|
|
*nresult = (size_t)psenc->chlen;
|
|
|
|
if (psenc->chlen > 0) {
|
|
|
|
memcpy(s, psenc->ch, psenc->chlen);
|
|
|
|
psenc->chlen = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline int
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_stdenc_wctocs(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
_csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
|
|
|
|
{
|
|
|
|
|
|
|
|
*csid = 0;
|
|
|
|
*idx = (_index_t)wc;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline int
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_stdenc_cstowc(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
wchar_t * __restrict wc, _csid_t csid, _index_t idx)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (csid != 0)
|
|
|
|
return (EILSEQ);
|
|
|
|
*wc = (wchar_t)idx;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline int
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_stdenc_get_state_desc_generic(_UTF7EncodingInfo * __restrict ei __unused,
|
|
|
|
_UTF7State * __restrict psenc, int * __restrict rstate)
|
|
|
|
{
|
|
|
|
|
|
|
|
*rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL :
|
|
|
|
_STDENC_SDGEN_INCOMPLETE_CHAR;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_encoding_module_uninit(_UTF7EncodingInfo *ei __unused)
|
|
|
|
{
|
|
|
|
|
|
|
|
/* ei seems to be unused */
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
/*ARGSUSED*/
|
|
|
|
_citrus_UTF7_encoding_module_init(_UTF7EncodingInfo * __restrict ei,
|
|
|
|
const void * __restrict var __unused, size_t lenvar __unused)
|
|
|
|
{
|
|
|
|
const char *s;
|
|
|
|
|
|
|
|
memset(ei, 0, sizeof(*ei));
|
|
|
|
|
|
|
|
#define FILL(str, flag) \
|
|
|
|
do { \
|
|
|
|
for (s = str; *s != '\0'; s++) \
|
|
|
|
ei->cell[*s & 0x7f] |= flag; \
|
|
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
|
|
|
|
FILL(base64, (s - base64) + 1);
|
|
|
|
FILL(direct, EI_DIRECT);
|
|
|
|
FILL(option, EI_OPTION);
|
|
|
|
FILL(spaces, EI_SPACE);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ----------------------------------------------------------------------
|
|
|
|
* public interface for stdenc
|
|
|
|
*/
|
|
|
|
|
|
|
|
_CITRUS_STDENC_DECLS(UTF7);
|
|
|
|
_CITRUS_STDENC_DEF_OPS(UTF7);
|
|
|
|
|
|
|
|
#include "citrus_stdenc_template.h"
|