Update.

2000-06-15  Ulrich Drepper  <drepper@redhat.com>

	* iconv/gconv.h (__gconv_fct): Change type of fifth parameter to
	unsigned char **.
	(__gconv_init_fct): Remove two parameters.
	* iconv/gconv_int.h (__gconv_transliterate): Renamed from
	gconv_transliterate.  Remove two parameters.
	Change prototypes of builtin functions according to __gconv_fct change.
	* iconv/skeleton.c: Change type of fifth parameter.  make sure it is
	!= NULL only during error handling.  Stop in this case after the
	conversion.
	* iconv/gconv_trans.c: Replace with real implementation for
	__gconv_transliterate.
	* iconv/gconv_open.c: Adjust for renaming of __gconv_transliterate.
	* iconv/gconv.c: Change calls to downstream functions once again.
	Use NULL for the fifth parameter instead of pointer to output buffer.
	* libio/iofwide.c: Likewise.
	* 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.
	* iconv/gconv_simple.c: Remove two parameters from error handling
	function call.
	* iconvdata/8bit-gap.c: Likewise.
	* iconvdata/8bit-generic.c: Likewise.
	* iconvdata/ansi_x3.110.c: Likewise.
	* iconvdata/big5.c: Likewise.
	* iconvdata/big5hkscs.c: Likewise.
	* iconvdata/euc-cn.c: Likewise.
	* iconvdata/euc-jp.c: Likewise.
	* iconvdata/euc-kr.c: Likewise.
	* iconvdata/euc-tw.c: Likewise.
	* iconvdata/gbgbk.c: Likewise.
	* iconvdata/gbk.c: Likewise.
	* iconvdata/iso-2022-cn.c: Likewise.
	* iconvdata/iso-2022-jp.c: Likewise.
	* iconvdata/iso-2022-kr.c: Likewise.
	* iconvdata/iso646.c: Likewise.
	* iconvdata/iso8859-1.c: Likewise.
	* iconvdata/iso_6937-2.c: Likewise.
	* iconvdata/iso_6937.c: Likewise.
	* iconvdata/johab.c: Likewise.
	* iconvdata/sjis.c: Likewise.
	* iconvdata/t.61.c: Likewise.
	* iconvdata/uhc.c: Likewise.
	* iconvdata/unicode.c: Likewise.
	* iconvdata/utf-16.c: Likewise.

7 files changed, 149 insertions, 40 deletions

diff --git a/iconv/gconv.c b/iconv/gconv.c
index 19f9562..0b7b917 100644
--- a/iconv/gconv.c
+++ b/iconv/gconv.c
@@ -46,8 +46,8 @@ __gconv (__gconv_t cd, const unsigned char **inbuf,
   if (inbuf == NULL || *inbuf == NULL)
     /* We just flush.  */
     result = DL_CALL_FCT (cd->__steps->__fct,
-			  (cd->__steps, cd->__data, NULL, NULL,
-			   cd->__data[0].__outbuf, irreversible, 1, 0));
+			  (cd->__steps, cd->__data, NULL, NULL, NULL,
+			   irreversible, 1, 0));
   else
     {
       const unsigned char *last_start;
@@ -59,7 +59,7 @@ __gconv (__gconv_t cd, const unsigned char **inbuf,
 	  last_start = *inbuf;
 	  result = DL_CALL_FCT (cd->__steps->__fct,
 				(cd->__steps, cd->__data, inbuf, inbufend,
-				 cd->__data[0].__outbuf, irreversible, 0, 0));
+				 NULL, irreversible, 0, 0));
 	}
       while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf
 	     && *inbuf + cd->__steps->__min_needed_from <= inbufend);
diff --git a/iconv/gconv.h b/iconv/gconv.h
index 2bba133..0164b62 100644
--- a/iconv/gconv.h
+++ b/iconv/gconv.h
@@ -68,7 +68,7 @@ struct __gconv_trans_data;
 /* Type of a conversion function.  */
 typedef int (*__gconv_fct) (struct __gconv_step *, struct __gconv_step_data *,
 			    __const unsigned char **, __const unsigned char *,
-			    unsigned char *, size_t *, int, int);
+			    unsigned char **, size_t *, int, int);
 
 /* Constructor and destructor for local data for conversion step.  */
 typedef int (*__gconv_init_fct) (struct __gconv_step *);
@@ -80,8 +80,8 @@ typedef int (*__gconv_trans_fct) (struct __gconv_step *step,
 				  struct __gconv_step_data *step_data,
 				  __const unsigned char *,
 				  __const unsigned char **,
-				  __const unsigned char *, unsigned char *,
-				  unsigned char **, unsigned char *, size_t *);
+				  __const unsigned char *, unsigned char **,
+				  size_t *);
 
 /* Function to call to provide transliteration module with context.  */
 typedef int (*__gconv_trans_context_fct) (struct __gconv_trans_data *data,
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index 87287d7..34dff7d 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -181,15 +181,13 @@ extern void __gconv_get_builtin_trans (const char *name,
      internal_function;
 
 /* Transliteration using the locale's data.  */
-extern int gconv_transliterate (struct __gconv_step *step,
-				struct __gconv_step_data *step_data,
-				__const unsigned char *inbufstart,
-				__const unsigned char **inbufp,
-				__const unsigned char *inbufend,
-				unsigned char *outbufstart,
-				unsigned char **outbufp,
-				unsigned char *outbufend,
-				size_t *irreversible);
+extern int __gconv_transliterate (struct __gconv_step *step,
+				  struct __gconv_step_data *step_data,
+				  __const unsigned char *inbufstart,
+				  __const unsigned char **inbufp,
+				  __const unsigned char *inbufend,
+				  unsigned char **outbufstart,
+				  size_t *irreversible);
 
 
 /* Builtin transformations.  */
@@ -198,8 +196,9 @@ extern int gconv_transliterate (struct __gconv_step *step,
   extern int Name (struct __gconv_step *step,				      \
 		   struct __gconv_step_data *data,			      \
 		   const unsigned char **inbuf,				      \
-		   const unsigned char *inbufend, unsigned char *outbufstart, \
-		   size_t *irreversible, int do_flush, int consume_incomplete)
+		   const unsigned char *inbufend,			      \
+		   unsigned char **outbufstart, size_t *irreversible,	      \
+		   int do_flush, int consume_incomplete)
 
 __BUILTIN_TRANS (__gconv_transform_ascii_internal);
 __BUILTIN_TRANS (__gconv_transform_internal_ascii);
diff --git a/iconv/gconv_open.c b/iconv/gconv_open.c
index 984ca9d..14f1d5e 100644
--- a/iconv/gconv_open.c
+++ b/iconv/gconv_open.c
@@ -86,7 +86,7 @@ __gconv_open (const char *toset, const char *fromset, __gconv_t *handle,
 
 	      csnames = internal_trans_names;
 	      ncsnames = 1;
-	      trans_fct = gconv_transliterate;
+	      trans_fct = __gconv_transliterate;
 	      /* No context, init, or end function.  */
 	    }
 	  else if (strcasecmp (errhand, "WORK AROUND A GCC BUG") == 0)
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index 5033f3e..3905745 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -801,7 +801,7 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
 	  {								      \
 	    result = DL_CALL_FCT (step_data->__trans.__trans_fct,	      \
 				  (step, step_data, *inptrp, &inptr, inend,   \
-				   *outptrp, &outptr, outend, irreversible)); \
+				   &outptr, irreversible));		      \
 	    if (result != __GCONV_OK)					      \
 	      break;							      \
 	  }								      \
@@ -1190,7 +1190,7 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
 	  {								      \
 	    result = DL_CALL_FCT (step_data->__trans.__trans_fct,	      \
 				  (step, step_data, *inptrp, &inptr, inend,   \
-				   *outptrp, &outptr, outend, irreversible)); \
+				   &outptr, irreversible));		      \
 	    if (result != __GCONV_OK)					      \
 	      break;							      \
 	  }								      \
@@ -1257,7 +1257,7 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
 	  {								      \
 	    result = DL_CALL_FCT (step_data->__trans.__trans_fct,	      \
 				  (step, step_data, *inptrp, &inptr, inend,   \
-				   *outptrp, &outptr, outend, irreversible)); \
+				   &outptr, irreversible));		      \
 	    if (result != __GCONV_OK)					      \
 	      break;							      \
 	  }								      \
diff --git a/iconv/gconv_trans.c b/iconv/gconv_trans.c
index 56c3ff6..829ff5f 100644
--- a/iconv/gconv_trans.c
+++ b/iconv/gconv_trans.c
@@ -18,6 +18,7 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <dlfcn.h>
 #include <stdint.h>
 
 #include "gconv_int.h"
@@ -25,26 +26,121 @@
 
 
 int
-gconv_transliterate (struct __gconv_step *step,
-		     struct __gconv_step_data *step_data,
-		     const unsigned char *inbufstart,
-		     const unsigned char **inbufp,
-		     const unsigned char *inbufend,
-		     unsigned char *outbufstart,
-		     unsigned char **outbufp, unsigned char *outbufend,
-		     size_t *irreversible)
+__gconv_transliterate (struct __gconv_step *step,
+		       struct __gconv_step_data *step_data,
+		       const unsigned char *inbufstart,
+		       const unsigned char **inbufp,
+		       const unsigned char *inbufend,
+		       unsigned char **outbufstart, size_t *irreversible)
 {
   /* Find out about the locale's transliteration.  */
-  uint_fast32_t size = _NL_CURRENT_WORD (LC_CTYPE,
-					 _NL_CTYPE_TRANSLIT_HASH_SIZE);
-  uint_fast32_t layers = _NL_CURRENT_WORD (LC_CTYPE,
-					   _NL_CTYPE_TRANSLIT_HASH_LAYERS);
+  uint_fast32_t size;
+  uint_fast32_t layers;
+  uint32_t *from_idx;
+  uint32_t *from_tbl;
+  uint32_t *to_idx;
+  uint32_t *to_tbl;
+  uint32_t *winbuf;
+  uint32_t *winbufend;
+  uint_fast32_t low;
+  uint_fast32_t high;
 
   /* If there is no transliteration information in the locale don't do
      anything and return the error.  */
+  size = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_TRANSLIT_HASH_SIZE);
   if (size == 0)
     return __GCONV_ILLEGAL_INPUT;
 
-  /* XXX For now we don't do anything.  */
+  /* Get the rest of the values.  */
+  layers = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_TRANSLIT_HASH_LAYERS);
+  from_idx = (uint32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TRANSLIT_FROM_IDX);
+  from_tbl = (uint32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TRANSLIT_FROM_TBL);
+  to_idx = (uint32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TRANSLIT_TO_IDX);
+  to_tbl = (uint32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TRANSLIT_TO_TBL);
+
+  /* The input buffer.  There are actually 4-byte values.  */
+  winbuf = (uint32_t *) *inbufp;
+  winbufend = (uint32_t *) inbufend;
+
+  /* Test whether there is enough input.  */
+  if (winbuf + 1 > winbufend)
+    return (winbuf == winbufend
+	    ? __GCONV_EMPTY_INPUT : __GCONV_INCOMPLETE_INPUT);
+
+  /* The array starting at FROM_IDX contains indeces to the string table
+     in FROM_TBL.  The indeces are sorted wrt to the strings.  I.e., we
+     are doing binary search.  */
+  low = 0;
+  high = size;
+  while (low < high)
+    {
+      uint_fast32_t med = (low + high) / 2;
+      uint32_t idx;
+      int cnt;
+
+      /* Compare the string at this index with the string at the current
+	 position in the input buffer.  */
+      idx = from_idx[med];
+      cnt = 0;
+      do
+	{
+	  if (from_tbl[idx + cnt] != winbuf[cnt])
+	    /* Does not match.  */
+	    break;
+	  ++cnt;
+	}
+      while (from_tbl[idx + cnt] != L'\0' && winbuf + cnt < winbufend);
+
+      if (cnt > 0 && from_tbl[idx + cnt] == L'\0')
+	{
+	  /* Found a matching input sequence.  Now try to convert the
+	     possible replacements.  */
+	  uint32_t idx2 = to_idx[med];
+
+	  do
+	    {
+	      /* Determine length of replacement.  */
+	      uint_fast32_t len = 0;
+	      int res;
+	      const unsigned char *toinptr;
+
+	      while (to_tbl[idx2 + len] != L'\0')
+		++len;
+
+	      /* Try this input text.  */
+	      toinptr = (const unsigned char *) &to_tbl[idx2];
+	      res = DL_CALL_FCT (step->__fct,
+				 (step, step_data, &toinptr,
+				  (const unsigned char *) &to_tbl[idx2 + len],
+				  (unsigned char **) outbufstart,
+				  irreversible, 0, 0));
+	      if (res != __GCONV_ILLEGAL_INPUT)
+		{
+		  /* If the conversion succeeds we have to increment the
+		     input buffer.  */
+		  if (res == __GCONV_EMPTY_INPUT)
+		    {
+		      *inbufp += cnt * sizeof (uint32_t);
+		      ++*irreversible;
+		    }
+
+		  return res;
+		}
+
+	      /* Next replacement.  */
+	      idx2 += len + 1;
+	    }
+	  while (to_tbl[idx2] != L'\0');
+
+	  /* Nothing found, continue searching.  */
+	}
+
+      if (winbuf + cnt >= winbufend || from_tbl[idx + cnt] < winbuf[cnt])
+	low = idx;
+      else
+	high = idx;
+    }
+
+  /* Haven't found a match.  */
   return __GCONV_ILLEGAL_INPUT;
 }
diff --git a/iconv/skeleton.c b/iconv/skeleton.c
index d64d759..8dbebb8 100644
--- a/iconv/skeleton.c
+++ b/iconv/skeleton.c
@@ -271,7 +271,7 @@ gconv_init (struct __gconv_step *step)
 int
 FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
 	       const unsigned char **inptrp, const unsigned char *inend,
-	       unsigned char *outbufstart, size_t *irreversible, int do_flush,
+	       unsigned char **outbufstart, size_t *irreversible, int do_flush,
 	       int consume_incomplete)
 {
   struct __gconv_step *next_step = step + 1;
@@ -288,6 +288,9 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
     {
       status = __GCONV_OK;
 
+      /* This should never happen during error handling.  */
+      assert (outbufstart == NULL);
+
 #ifdef EMIT_SHIFT_TO_INIT
       /* Emit the escape sequence to reset the state.  */
       EMIT_SHIFT_TO_INIT;
@@ -296,14 +299,15 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
          successfully emitted the escape sequence.  */
       if (status == __GCONV_OK && ! (data->__flags & __GCONV_IS_LAST))
 	status = DL_CALL_FCT (fct, (next_step, next_data, NULL, NULL,
-				    next_data->__outbuf, irreversible, 1,
+				    NULL, irreversible, 1,
 				    consume_incomplete));
     }
   else
     {
       /* We preserve the initial values of the pointer variables.  */
       const unsigned char *inptr = *inptrp;
-      unsigned char *outbuf = outbufstart;
+      unsigned char *outbuf = (__builtin_expect (outbufstart == NULL, 1)
+			       ? data->__outbuf : *outbufstart);
       unsigned char *outend = data->__outbufend;
       unsigned char *outstart;
       /* This variable is used to count the number of characters we
@@ -331,7 +335,10 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
 	   || (MAX_NEEDED_TO > 1 && !FROM_DIRECTION))
 	  && consume_incomplete && (data->__statep->__count & 7) != 0)
 	{
-	  /* Yep, we have some bytes left over.  Process them now.  */
+	  /* Yep, we have some bytes left over.  Process them now.
+             But this must not happen while we are called from an
+             error handler.  */
+	  assert (outbufstart == NULL);
 
 # if MAX_NEEDED_FROM > 1
 	  if (MAX_NEEDED_TO == 1 || FROM_DIRECTION)
@@ -412,6 +419,14 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
 	    }
 #endif
 
+	  /* If we were called as part of an error handling module we
+	     don't do anything else here.  */
+	  if (__builtin_expect (outbufstart != NULL, 0))
+	    {
+	      *outbufstart = outbuf;
+	      return status;
+	    }
+
 	  /* Give the transliteration module the chance to store the
 	     original text and the result in case it needs a context.  */
 	  if (data->__trans.__trans_context_fct != NULL)
@@ -443,8 +458,7 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
 	      int result;
 
 	      result = DL_CALL_FCT (fct, (next_step, next_data, &outerr,
-					  outbuf, next_data->__outbuf,
-					  irreversible, 0,
+					  outbuf, NULL, irreversible, 0,
 					  consume_incomplete));
 
 	      if (result != __GCONV_EMPTY_INPUT)