Date: Sun, 1 Jul 2001 05:14:48 +0900 (JST) From: sa2c@and.or.jp To: FreeBSD-gnats-submit@freebsd.org Subject: bin/28552: EUC support of wcstombs(3) is broken for codeset 3 and 4 Message-ID: <20010630201448.D4C8F3E32@berkeley.us.and.or.jp>
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>Number: 28552
>Category: bin
>Synopsis: EUC support of wcstombs(3) is broken for codeset 3 and 4
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Jun 30 13:20:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: NIIMI Satoshi
>Release: FreeBSD 4.3-STABLE i386
>Organization:
>Environment:
System: FreeBSD berkeley.us.and.or.jp 4.3-STABLE FreeBSD 4.3-STABLE #2: Thu Jun 21 18:28:33 JST 2001 sa2c@berkeley.us.and.or.jp:/usr/obj/usr/src/sys/BERKELEY i386
>Description:
wcstombs(3) converts wide characters to multibyte characters
incorrectly if the character is codeset 3 or codeset 4 of EUC
character. The produced multibyte characters do not conform to EUC
specifition.
>How-To-Repeat:
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* multibyte Japanese EUC characters */
const unsigned char teststr[] = { 0x41, 0xa4, 0xa2, 0x8e, 0xb1,
0x8f, 0xb0, 0xa1, 0 };
/* expected wide characters of above */
const wchar_t w_teststr[] = { 0x0041, 0xa4a2, 0x00b1, 0xb021, 0 };
void
dumpmbs(const char *prompt, const unsigned char *p)
{
int c;
printf("%s: ", prompt);
do {
c = *p++;
printf("[%02x]", c);
} while (c != 0);
putchar('\n');
}
void
dumpwcs(const char *prompt, const wchar_t *wp)
{
wchar_t wc;
printf("%s: ", prompt);
do {
wc = *wp++;
printf("[%04x]", wc);
} while (wc != 0);
putchar('\n');
}
int
main(int argc, char **argv)
{
unsigned char buf[BUFSIZ];
wchar_t wbuf[BUFSIZ];
setlocale(LC_CTYPE, "ja_JP.EUC");
strncpy(buf, teststr, sizeof(buf) - 1);
buf[sizeof(buf) - 1] = '\0';
dumpmbs("mbs", teststr);
dumpwcs("wcs", w_teststr);
mbstowcs(wbuf, teststr, BUFSIZ);
dumpwcs("mbs->wcs", wbuf);
wcstombs(buf, w_teststr, BUFSIZ);
dumpmbs("wcs->mbs", buf);
mbstowcs(wbuf, teststr, BUFSIZ);
wcstombs(buf, wbuf, BUFSIZ);
dumpmbs("mbs->wcs->mbs", buf);
wcstombs(buf, w_teststr, BUFSIZ);
mbstowcs(wbuf, buf, BUFSIZ);
dumpwcs("wcs->mbs->wcs", wbuf);
return 0;
}
>Fix:
Index: euc.c
===================================================================
RCS file: /home/ncvs/src/lib/libc/locale/euc.c,v
retrieving revision 1.3.6.1
diff -u -u -r1.3.6.1 euc.c
--- euc.c 2000/06/04 21:47:39 1.3.6.1
+++ euc.c 2001/06/30 19:47:16
@@ -123,6 +123,8 @@
#define _SS2 0x008e
#define _SS3 0x008f
+#define GR_BITS 0x80808080 /* XXX: to be fixed */
+
static inline int
_euc_set(c)
u_int c;
@@ -202,6 +204,8 @@
}
*string++ = _SS2;
--i;
+ /* SS2 designates G2 into GR */
+ nm |= GR_BITS;
} else
if (m == CEI->bits[3]) {
i = len = CEI->count[3];
@@ -212,6 +216,8 @@
}
*string++ = _SS3;
--i;
+ /* SS3 designates G3 into GR */
+ nm |= GR_BITS;
} else
goto CodeSet1; /* Bletch */
while (i-- > 0)
>Release-Note:
>Audit-Trail:
>Unformatted:
<synopsis of the problem (one line)>
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