Update.

* wcsmbs/mbsnrtowcs.c: Correctly compute number of converted
	characters.  Don't handle incomplete characters as errors.
	* wcsmbs/mbsrtowcs.c: Don't handle incomplete characters as errors.
	* localedata/Makefile (test-srcs): Add tst-mbswcs2.
	Add rule to build tst-mbswcs2 before running tst-mbswcs.sh.
	* localedata/tst-mbswcs.sh: Run tst-mbswcs2.
	* localedata/tst-mbswcs2.c: New file.

ChangeLog

@@ -1,5 +1,13 @@
 2000-04-26  Ulrich Drepper  <drepper@redhat.com>
 
+	* wcsmbs/mbsnrtowcs.c: Correctly compute number of converted
+	characters.  Don't handle incomplete characters as errors.
+	* wcsmbs/mbsrtowcs.c: Don't handle incomplete characters as errors.
+	* localedata/Makefile (test-srcs): Add tst-mbswcs2.
+	Add rule to build tst-mbswcs2 before running tst-mbswcs.sh.
+	* localedata/tst-mbswcs.sh: Run tst-mbswcs2.
+	* localedata/tst-mbswcs2.c: New file.
+
 	* iconv/gconv_simple.c (utf8_internal_loop): Correctly reconstruct
 	stored character in state in UNPACK_BYTES macro.
 	* iconv/loop.c (SINGLE(LOOPFCT)): Make it actually work.  Correct

localedata/Makefile

@@ -36,7 +36,7 @@ repertoiremaps := $(filter-out $(addprefix repertoiremaps/, CVS RCS SCCS %~), \
 					   $(wildcard repertoiremaps/*))
 
 test-srcs := collate-test xfrm-test tst-fmon tst-rpmatch tst-trans \
-	     tst-mbswcs1
+	     tst-mbswcs1 tst-mbswcs2
 test-input := de_DE.ISO-8859-1 da_DK.ISO-8859-1 fr_CA,2.13.ISO-8859-1 \
 	      hr_HR.ISO-8859-2 # once it is fixed: cs_CZ.ISO-8859-2
 test-input-data = $(addsuffix .in, $(basename $(test-input)))
@@ -91,7 +91,7 @@ do-tst-rpmatch: tst-rpmatch.sh $(objpfx)tst-rpmatch do-tst-fmon
 	$(SHELL) -e $< $(common-objpfx)
 do-tst-trans: tst-trans.sh $(objpfx)tst-trans
 	$(SHELL) -e $< $(common-objpfx)
-do-tst-mbswcs: tst-mbswcs.sh $(objpfx)tst-mbswcs1
+do-tst-mbswcs: tst-mbswcs.sh $(objpfx)tst-mbswcs1 $(objpfx)tst-mbswcs2
 	$(SHELL) -e $< $(common-objpfx)
 endif
 endif

localedata/tst-mbswcs.sh

@@ -48,4 +48,9 @@ ${common_objpfx}elf/ld.so --library-path $common_objpfx \
   ${common_objpfx}localedata/tst-mbswcs1 \
   > ${common_objpfx}localedata/tst-mbswcs.out || status=1
 
+LOCPATH=${common_objpfx}localedata GCONV_PATH=${common_objpfx}iconvdata \
+${common_objpfx}elf/ld.so --library-path $common_objpfx \
+  ${common_objpfx}localedata/tst-mbswcs2 \
+  >> ${common_objpfx}localedata/tst-mbswcs.out || status=1
+
 exit $status

localedata/tst-mbswcs2.c

@@ -0,0 +1,65 @@
+/* Test restarting behaviour of mbsnrtowcs.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Bruno Haible <haible@ilog.fr>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#include <locale.h>
+
+#define show(expr, nexp, wcexp, end) \
+  n = expr;								\
+  printf (#expr " -> %Zd", n);						\
+  printf (", wc = %lu, src = buf+%d", (unsigned long int) wc,		\
+	  src - (const char *) buf);					\
+  if (n != (size_t) nexp || wc != wcexp || src != (const char *) (end))	\
+    {									\
+      printf (", expected %Zd and %lu and buf+%d", nexp,		\
+	      (unsigned long int) wcexp, (end) - buf);			\
+      result = 1;							\
+    }									\
+  putc ('\n', stdout)
+
+int
+main (void)
+{
+  unsigned char buf[6] = { 0x25,  0xe2, 0x82, 0xac,  0xce, 0xbb };
+  mbstate_t state;
+  const char *src;
+  wchar_t wc = 42;
+  size_t n;
+  int result = 0;
+  const char *used_locale;
+
+  setlocale (LC_CTYPE,"de_DE.UTF-8");
+  /* Double check.  */
+  used_locale = setlocale (LC_CTYPE, NULL);
+  printf ("used locale: \"%s\"\n", used_locale);
+  result = strcmp (used_locale, "de_DE.UTF-8");
+
+  memset (&state, '\0', sizeof (state));
+
+  src = (const char *) buf;
+  show (mbsnrtowcs (&wc, &src, 1, 1, &state), 1, 37, buf + 1);
+  show (mbsnrtowcs (&wc, &src, 3, 1, &state), 1, 8364, buf + 4);
+  show (mbsnrtowcs (&wc, &src, 1, 1, &state), 0, 8364, buf + 5);
+  show (mbsnrtowcs (&wc, &src, 1, 1, &state), 1, 955, buf + 6);
+
+  return result;
+}

wcsmbs/mbsnrtowcs.c

@@ -46,9 +46,10 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 {
   const unsigned char *srcend;
   struct __gconv_step_data data;
-  size_t result = 0;
+  size_t result;
   int status;
   struct __gconv_step *towc;
+  size_t non_reversible;
 
   /* Tell where we want the result.  */
   data.__invocation_counter = 0;
@@ -72,13 +73,16 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
       wchar_t buf[64];		/* Just an arbitrary size.  */
       const unsigned char *inbuf = *src;
 
-      data.__outbufend = (char *) buf + sizeof (buf);
+      result = 0;
+      data.__outbufend = (unsigned char *) buf + sizeof (buf);
       do
 	{
-	  data.__outbuf = (char *) buf;
+	  data.__outbuf = (unsigned char *) buf;
 
 	  status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data, &inbuf,
-				   srcend, &result, 0, 1);
+				   srcend, &non_reversible, 0, 1);
+
+	  result += (wchar_t *) data.__outbuf - buf;
 	}
       while (status == __GCONV_FULL_OUTPUT);
 
@@ -97,14 +101,16 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 
       status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
 			       (const unsigned char **) src, srcend,
-			       &result, 0, 1);
+			       &non_reversible, 0, 1);
+
+      result = (wchar_t *) data.__outbuf - dst;
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
       if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
-	  && ((wchar_t *) dst)[result - 1] == L'\0')
+	  && (assert (result > 0),
+	      ((wchar_t *) dst)[result - 1] == L'\0'))
 	{
-	  assert (result > 0);
 	  assert (__mbsinit (data.__statep));
 	  *src = NULL;
 	  --result;
@@ -113,13 +119,13 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 
   /* There must not be any problems with the conversion but illegal input
      characters.  */
-  assert (status == __GCONV_OK || status != __GCONV_EMPTY_INPUT
+  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_FULL_OUTPUT
-      && status != __GCONV_EMPTY_INPUT)
+      && status != __GCONV_EMPTY_INPUT && status != __GCONV_INCOMPLETE_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);

wcsmbs/mbsrtowcs.c

@@ -131,7 +131,7 @@ __mbsrtowcs (dst, src, len, ps)
 	  || status == __GCONV_FULL_OUTPUT);
 
   if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
-      && status != __GCONV_EMPTY_INPUT)
+      && status != __GCONV_EMPTY_INPUT && status != __GCONV_INCOMPLETE_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);