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fix lib/37290 

- don't call abort(3) when there's no suitable charset found.
- use iso-8859-1(or INIT1 if specified) for C1 control char.
This commit is contained in:
tnozaki 2007-11-21 14:19:32 +00:00
parent a3a3ad0162
commit fca38949e4
1 changed files with 52 additions and 38 deletions
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90
lib/libc/citrus/modules/citrus_iso2022.c
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@ -1,4 +1,4 @@
/* $NetBSD: citrus_iso2022.c,v 1.17 2007/09/18 15:12:08 tnozaki Exp $ */
/* $NetBSD: citrus_iso2022.c,v 1.18 2007/11/21 14:19:32 tnozaki Exp $ */
/*-
* Copyright (c)1999, 2002 Citrus Project,
@ -30,7 +30,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: citrus_iso2022.c,v 1.17 2007/09/18 15:12:08 tnozaki Exp $");
__RCSID("$NetBSD: citrus_iso2022.c,v 1.18 2007/11/21 14:19:32 tnozaki Exp $");
#endif /* LIBC_SCCS and not lint */
#include <assert.h>
@ -1024,9 +1024,11 @@ static int
_ISO2022_sputwchar(_ISO2022EncodingInfo * __restrict ei, wchar_t wc,
char * __restrict string, size_t n,
char ** __restrict result,
_ISO2022State * __restrict psenc)
_ISO2022State * __restrict psenc,
size_t * __restrict nresult)
{
int i = 0, len;
int i = 0;
size_t len;
_ISO2022Charset cs;
char *p;
char tmp[MB_LEN_MAX];
@ -1037,11 +1039,15 @@ _ISO2022_sputwchar(_ISO2022EncodingInfo * __restrict ei, wchar_t wc,
_DIAGASSERT(ei != NULL);
_DIAGASSERT(string != NULL);
/* result may be NULL */
/* state appears to be unused */
_DIAGASSERT(psenc != NULL);
_DIAGASSERT(nresult != NULL);
if (iscntl(wc & 0xff)) {
if (isc0(wc & 0xff)) {
/* go back to INIT0 or ASCII on control chars */
cs = ei->initg[0].final ? ei->initg[0] : ascii;
} else if (isc1(wc & 0xff)) {
/* go back to INIT1 or ISO-8859-1 on control chars */
cs = ei->initg[1].final ? ei->initg[1] : iso88591;
} else if (!(wc & ~0xff)) {
if (wc & 0x80) {
/* special treatment for ISO-8859-1 */
@ -1140,7 +1146,7 @@ planeok:
*p++ = 'O';
psenc->singlegl = psenc->singlegr = 3;
} else
abort();
goto ilseq;
sideok:
if (psenc->singlegl == target)
@ -1152,7 +1158,7 @@ sideok:
else if ((ei->flags & F_8BIT) && psenc->gr == target)
mask = 0x80;
else
abort();
goto ilseq;
switch (cs.type) {
case CS94:
@ -1171,16 +1177,23 @@ sideok:
/* reset single shift state */
psenc->singlegl = psenc->singlegr = -1;
len = p - tmp;
len = (size_t)(p - tmp);
if (n < len) {
if (result)
*result = (char *)0;
} else {
if (result)
*result = string + len;
memcpy(string, tmp, len);
*nresult = (size_t)-1;
return E2BIG;
}
return len;
if (result)
*result = string + len;
memcpy(string, tmp, len);
*nresult = len;
return 0;
ilseq:
*nresult = (size_t)-1;
return EILSEQ;
}
static int
@ -1191,32 +1204,30 @@ _citrus_ISO2022_put_state_reset(_ISO2022EncodingInfo * __restrict ei,
{
char buf[MB_LEN_MAX];
char *result;
int len, ret;
int ret;
size_t len;
_DIAGASSERT(ei != NULL);
_DIAGASSERT(nresult != 0);
_DIAGASSERT(s != NULL);
/* XXX state will be modified after this operation... */
len = _ISO2022_sputwchar(ei, L'\0', buf, sizeof(buf), &result, psenc);
if (len==0) {
ret = EINVAL;
goto err;
ret = _ISO2022_sputwchar(ei, L'\0', buf, sizeof(buf), &result, psenc,
&len);
if (ret) {
*nresult = len;
return ret;
}
if (sizeof(buf) < len || n < len-1) {
/* XXX should recover state? */
ret = E2BIG;
goto err;
*nresult = (size_t)-1;
return E2BIG;
}
memcpy(s, buf, len-1);
*nresult = (size_t)(len-1);
*nresult = len-1;
return (0);
err:
/* bound check failure */
*nresult = (size_t)-1;
return ret;
}
static int
@ -1227,28 +1238,31 @@ _citrus_ISO2022_wcrtomb_priv(_ISO2022EncodingInfo * __restrict ei,
{
char buf[MB_LEN_MAX];
char *result;
int len, ret;
int ret;
size_t len;
_DIAGASSERT(ei != NULL);
_DIAGASSERT(nresult != 0);
_DIAGASSERT(s != NULL);
_DIAGASSERT(psenc != NULL);
_DIAGASSERT(nresult != 0);
/* XXX state will be modified after this operation... */
len = _ISO2022_sputwchar(ei, wc, buf, sizeof(buf), &result, psenc);
ret = _ISO2022_sputwchar(ei, wc, buf, sizeof(buf), &result, psenc,
&len);
if (ret) {
*nresult = len;
return ret;
}
if (sizeof(buf) < len || n < len) {
/* XXX should recover state? */
ret = E2BIG;
goto err;
*nresult = (size_t)-1;
return E2BIG;
}
memcpy(s, buf, len);
*nresult = (size_t)len;
*nresult = len;
return (0);
err:
/* bound check failure */
*nresult = (size_t)-1;
return ret;
}
static __inline int