Update.

2000-04-09  Ulrich Drepper  <drepper@redhat.com>

	Implement handling of restartable conversion functions according to
	ISO C.
	* iconv/gconv.h (__gconv_fct): Add additional parameter.
	* iconv/gconv_int.h (__BUILTIN_TRANS): Likewise.
	* iconv/gconv.c: Pass additional parameter to conversion function.
	* iconv/gconv_simple.c (internal_ucs4_loop_single): New function.
	(internal_ucs4le_loop_single): New function.
	(__gconv_transform_ascii_internal): Define ONE_DIRECTION.
	(__gconv_transform_internal_ascii): Likewise.
	(__gconv_transform_internal_utf8): Likewise.
	(__gconv_transform_utf8_internal): Likewise.
	(__gconv_transform_ucs2_internal): Likewise.
	(__gconv_transform_internal_ucs2): Likewise.
	(__gconv_transform_ucs2reverse_internal): Likewise.
	(__gconv_transform_internal_ucs2reverse): Likewise.
	(internal_ucs4le_loop_unaligned): Before return
	__GCONV_INCOMPLETE_INPUT check that the remaining bytes really form
	a valid character.  Otherwise return __GCONV_ILLEGAL_INPUT.
	(__gconv_transform_utf8_internal): Define STORE_REST and UNPACK_BYTES.
	* iconv/loop.c: Fit in definition of function to convert one character
	for processing of left-over bytes from the state object.
	* iconv/skeleton.c (gconv): Rename inbuf to inptrp and inbufend to
	inend to match names in loop functions.
	(RESET_INPUT_BUFFER): Change apprpriately.
	(gconv): If needed, call function to process bytes from the state
	object.  Similar at the end: store left over bytes if input is
	incomplete.
	Take extra argument and add new argument to all calls of the
	conversion function.
	* iconvdata/iso-2022-cn.c: Adjust numeric values used to store
	information in the state object to not conflict with length count.
	* iconvdata/iso-2022-jp.c: Likewise.
	* iconvdata/iso-2022-kr.c: Likewise.
	* iconvdata/unicode.c: Adjust for change change in parameters of
	skeleton function.
	* iconvdata/utf-16.c: Likewise.
	* libio/iofwide.c: Add new parameter to all calls of conversion
	function.
	* wcsmbs/btowc.c: Likewise.
	* wcsmbs/mbrtowc.c: Likewise.
	* wcsmbs/mbsnrtowcs.c: Likewise.
	* wcsmbs/mbsrtowcs.c: Likewise.
	* wcsmbs/wcrtomb.c: Likewise.
	* wcsmbs/wcsnrtombs.c: Likewise.
	* wcsmbs/wcsrtombs.c: Likewise.
	* wcsmbs/wctob.c: Likewise.

	* iconvdata/gbgbk.c: Always define MAX_NEEDED_OUTPUT and
	MAX_NEEDED_INPUT.

8 files changed, 20 insertions, 17 deletions

diff --git a/wcsmbs/btowc.c b/wcsmbs/btowc.c
index bec0d48841..e0e4ceb139 100644
--- a/wcsmbs/btowc.c
+++ b/wcsmbs/btowc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
@@ -59,7 +59,8 @@ __btowc (c)
   inbuf[0] = c;
 
   status = (*__wcsmbs_gconv_fcts.towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
-					       &inptr, inptr + 1, &dummy, 0);
+					       &inptr, inptr + 1, &dummy,
+					       0, 1);
   /* The conversion failed.  */
   if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
       && status != __GCONV_EMPTY_INPUT)
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c
index 2aeb67c154..b0daf14fd5 100644
--- a/wcsmbs/mbrtowc.c
+++ b/wcsmbs/mbrtowc.c
@@ -69,7 +69,7 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
   inbuf = (const unsigned char *) s;
   status = (*__wcsmbs_gconv_fcts.towc->__fct) (__wcsmbs_gconv_fcts.towc,
 					       &data, &inbuf, inbuf + n,
-					       &dummy, 0);
+					       &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
diff --git a/wcsmbs/mbsnrtowcs.c b/wcsmbs/mbsnrtowcs.c
index b58a467854..94bd7b1ae7 100644
--- a/wcsmbs/mbsnrtowcs.c
+++ b/wcsmbs/mbsnrtowcs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
@@ -78,7 +78,7 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 	  data.__outbuf = (char *) buf;
 
 	  status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data, &inbuf,
-				   srcend, &result, 0);
+				   srcend, &result, 0, 1);
 	}
       while (status == __GCONV_FULL_OUTPUT);
 
@@ -97,7 +97,7 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 
       status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
 			       (const unsigned char **) src, srcend,
-			       &result, 0);
+			       &result, 0, 1);
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
diff --git a/wcsmbs/mbsrtowcs.c b/wcsmbs/mbsrtowcs.c
index f8c39e69bb..afa63a74bb 100644
--- a/wcsmbs/mbsrtowcs.c
+++ b/wcsmbs/mbsrtowcs.c
@@ -77,7 +77,7 @@ __mbsrtowcs (dst, src, len, ps)
 	  data.__outbuf = (char *) buf;
 
 	  status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data, &inbuf,
-				   srcend, &non_reversible, 0);
+				   srcend, &non_reversible, 0, 1);
 
 	  result += (wchar_t *) data.__outbuf - buf;
 	}
@@ -107,7 +107,7 @@ __mbsrtowcs (dst, src, len, ps)
 
       status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
 			       (const unsigned char **) src, srcend,
-			       &non_reversible, 0);
+			       &non_reversible, 0, 1);
 
       result = (wchar_t *) data.__outbuf - dst;
 
diff --git a/wcsmbs/wcrtomb.c b/wcsmbs/wcrtomb.c
index fb91167769..644d26bbc8 100644
--- a/wcsmbs/wcrtomb.c
+++ b/wcsmbs/wcrtomb.c
@@ -71,7 +71,7 @@ __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
     {
       status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb,
 						   &data, NULL, NULL,
-						   &dummy, 1);
+						   &dummy, 1, 1);
 
       if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
 	*data.__outbuf++ = '\0';
@@ -84,7 +84,7 @@ __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
       status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb,
 						   &data, &inbuf,
 						   inbuf + sizeof (wchar_t),
-						   &dummy, 0);
+						   &dummy, 0, 1);
     }
 
   /* There must not be any problems with the conversion but illegal input
diff --git a/wcsmbs/wcsnrtombs.c b/wcsmbs/wcsnrtombs.c
index fb86992aea..50c33ec285 100644
--- a/wcsmbs/wcsnrtombs.c
+++ b/wcsmbs/wcsnrtombs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999   Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
@@ -81,7 +81,8 @@ __wcsnrtombs (dst, src, nwc, len, ps)
 
 	  status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
 				   (const unsigned char **) &inbuf,
-				   (const unsigned char *) srcend, &dummy, 0);
+				   (const unsigned char *) srcend, &dummy,
+				   0, 1);
 
 	  /* Count the number of bytes.  */
 	  result += data.__outbuf - buf;
@@ -105,7 +106,7 @@ __wcsnrtombs (dst, src, nwc, len, ps)
 
       status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
 			       (const unsigned char **) src,
-			       (const unsigned char *) srcend, &dummy, 0);
+			       (const unsigned char *) srcend, &dummy, 0, 1);
 
       /* Count the number of bytes.  */
       result = data.__outbuf - (unsigned char *) dst;
diff --git a/wcsmbs/wcsrtombs.c b/wcsmbs/wcsrtombs.c
index 6058db72c1..cbb39d36e6 100644
--- a/wcsmbs/wcsrtombs.c
+++ b/wcsmbs/wcsrtombs.c
@@ -78,7 +78,8 @@ __wcsrtombs (dst, src, len, ps)
 
 	  status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
 				   (const unsigned char **) &inbuf,
-				   (const unsigned char *) srcend, &dummy, 0);
+				   (const unsigned char *) srcend, &dummy,
+				   0, 1);
 
 	  /* Count the number of bytes.  */
 	  result += data.__outbuf - buf;
@@ -106,7 +107,7 @@ __wcsrtombs (dst, src, len, ps)
 
       status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
 			       (const unsigned char **) src,
-			       (const unsigned char *) srcend, &dummy, 0);
+			       (const unsigned char *) srcend, &dummy, 0, 1);
 
       /* Count the number of bytes.  */
       result = data.__outbuf - (unsigned char *) dst;
diff --git a/wcsmbs/wctob.c b/wcsmbs/wctob.c
index 97a36f8d03..7e4c04f161 100644
--- a/wcsmbs/wctob.c
+++ b/wcsmbs/wctob.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
 
@@ -55,7 +55,7 @@ wctob (c)
   status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
 					       (const unsigned char **) &inptr,
 					       (const unsigned char *) &inbuf[1],
-					       &dummy, 0);
+					       &dummy, 0, 1);
   /* The conversion failed or the output is too long.  */
   if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
        && status != __GCONV_EMPTY_INPUT)