1 files changed, 512 insertions, 148 deletions

diff --git a/sunrpc/rpc_cout.c b/sunrpc/rpc_cout.c
index 86d38652f5..378a686fa7 100644
--- a/sunrpc/rpc_cout.c
+++ b/sunrpc/rpc_cout.c
@@ -1,55 +1,92 @@
-/* @(#)rpc_cout.c	2.1 88/08/01 4.0 RPCSRC */
 /*
  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  * unrestricted use provided that this legend is included on all tape
  * media and as a part of the software program in whole or part.  Users
  * may copy or modify Sun RPC without charge, but are not authorized
  * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- * 
+ * program developed by the user or with the express written consent of
+ * Sun Microsystems, Inc.
+ *
  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
+ *
  * Sun RPC is provided with no support and without any obligation on the
  * part of Sun Microsystems, Inc. to assist in its use, correction,
  * modification or enhancement.
- * 
+ *
  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  * OR ANY PART THEREOF.
- * 
+ *
  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  * or profits or other special, indirect and consequential damages, even if
  * Sun has been advised of the possibility of such damages.
- * 
+ *
  * Sun Microsystems, Inc.
  * 2550 Garcia Avenue
  * Mountain View, California  94043
  */
-#ifndef lint
-static char sccsid[] = "@(#)rpc_cout.c 1.8 87/06/24 (C) 1987 SMI";
-#endif
 
 /*
- * rpc_cout.c, XDR routine outputter for the RPC protocol compiler 
- * Copyright (C) 1987, Sun Microsystems, Inc. 
+ * From: @(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI
+ */
+char cout_rcsid[] =
+  "$Id$";
+
+/*
+ * rpc_cout.c, XDR routine outputter for the RPC protocol compiler
  */
+#include <ctype.h>
 #include <stdio.h>
-#include <strings.h>
-#include "rpc_util.h"
+#include <string.h>
 #include "rpc_parse.h"
+#include "rpc_util.h"
+#include "proto.h"
+
+static void emit_enum(definition *def);
+static void emit_program(definition *def);
+static void emit_union(definition *def);
+static void emit_struct(definition *def);
+static void emit_typedef(definition *def);
+static int findtype(const definition *def, const char *type);
+static int undefined(const char *type);
+static void print_generic_header(const char *procname, int pointerp);
+static void print_ifopen(int indent, const char *name);
+static void print_ifarg(const char *arg);
+static void print_ifsizeof(const char *prefix, const char *type);
+static void print_ifclose(int indent);
+static void print_ifstat(int indent, const char *prefix, const char *type,
+			 relation rel, const char *amax,
+			 const char *objname, const char *name);
+static void print_stat(int indent, declaration *dec);
+static void print_header(definition *def);
+static void print_trailer(void);
+static char *upcase(const char *str);
 
 /*
- * Emit the C-routine for the given definition 
+ * Emit the C-routine for the given definition
  */
 void
-emit(def)
-	definition *def;
+emit(definition *def)
 {
-	if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST) {
+	if (def->def_kind == DEF_CONST) {
 		return;
 	}
+	if (def->def_kind == DEF_PROGRAM) {
+		emit_program(def);
+		return;
+	}
+	if(def->def_kind == DEF_TYPEDEF)
+	  {
+	  /* now we need to handle declarations like
+   struct typedef foo foo;
+   since we dont want this to be expanded into 2 calls to xdr_foo */
+
+ 	if(strcmp(def->def.ty.old_type,def->def_name)==0)
+	  return;
+      };
+
 	print_header(def);
 	switch (def->def_kind) {
 	case DEF_UNION:
@@ -64,15 +101,16 @@ emit(def)
 	case DEF_TYPEDEF:
 		emit_typedef(def);
 		break;
+	default:
+	  /* can't happen */
 	}
 	print_trailer();
 }
 
-static
-findtype(def, type)
-	definition *def;
-	char *type;
+static int
+findtype(const definition *def, const char *type)
 {
+
 	if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST) {
 		return (0);
 	} else {
@@ -80,105 +118,121 @@ findtype(def, type)
 	}
 }
 
-static
-undefined(type)
-	char *type;
+static int
+undefined(const char *type)
 {
 	definition *def;
 
 	def = (definition *) FINDVAL(defined, type, findtype);
+
+
 	return (def == NULL);
 }
 
 
-static
-print_header(def)
-	definition *def;
+static void
+print_generic_header(const char *procname, int pointerp)
 {
-	space();
+	f_print(fout, "\n");
 	f_print(fout, "bool_t\n");
-	f_print(fout, "xdr_%s(xdrs, objp)\n", def->def_name);
-	f_print(fout, "\tXDR *xdrs;\n");
-	f_print(fout, "\t%s ", def->def_name);
-	if (def->def_kind != DEF_TYPEDEF ||
-	    !isvectordef(def->def.ty.old_type, def->def.ty.rel)) {
-		f_print(fout, "*");
+	if (Cflag) {
+	   f_print(fout, "xdr_%s(", procname);
+	   f_print(fout, "XDR *xdrs, ");
+	   f_print(fout, "%s ", procname);
+	   if( pointerp )
+	     f_print(fout, "*");
+	   f_print(fout, "objp)\n{\n\n");
+	} else {
+	  f_print(fout, "xdr_%s(xdrs, objp)\n", procname);
+	  f_print(fout, "\tXDR *xdrs;\n");
+	  f_print(fout, "\t%s ", procname);
+	  if( pointerp )
+	    f_print(fout, "*");
+	  f_print(fout, "objp;\n{\n\n");
 	}
-	f_print(fout, "objp;\n");
-	f_print(fout, "{\n");
 }
 
-static
-print_trailer()
+static void
+print_header(definition *def)
+{
+
+/*
+  decl_list *dl;
+  bas_type *ptr;
+  int i;
+ */
+
+  print_generic_header( def->def_name,
+		       def->def_kind != DEF_TYPEDEF ||
+		       !isvectordef(def->def.ty.old_type, def->def.ty.rel));
+
+  /* Now add Inline support */
+
+
+  if(inlineflag == 0 )
+    return;
+  /*May cause lint to complain. but  ... */
+f_print(fout, "\t register long *buf;\n\n");
+
+}
+
+static void
+print_prog_header(proc_list *plist)
+{
+  print_generic_header( plist->args.argname, 1 );
+}
+
+static void
+print_trailer(void)
 {
 	f_print(fout, "\treturn (TRUE);\n");
 	f_print(fout, "}\n");
-	space();
 }
 
 
-static
-print_ifopen(indent, name)
-	int indent;
-	char *name;
+static void
+print_ifopen(int indent, const char *name)
 {
 	tabify(fout, indent);
-	f_print(fout, "if (!xdr_%s(xdrs", name);
+	f_print(fout, " if (!xdr_%s(xdrs", name);
 }
 
-
-static
-print_ifarg(arg)
-	char *arg;
+static void
+print_ifarg(const char *arg)
 {
 	f_print(fout, ", %s", arg);
 }
 
-
-static
-print_ifsizeof(prefix, type)
-	char *prefix;
-	char *type;
+static void
+print_ifsizeof(const char *prefix, const char *type)
 {
 	if (streq(type, "bool")) {
-		f_print(fout, ", sizeof(bool_t), xdr_bool");
-	} else {
+		f_print(fout, ", sizeof(bool_t), (xdrproc_t)xdr_bool");
+	}
+	else {
 		f_print(fout, ", sizeof(");
 		if (undefined(type) && prefix) {
 			f_print(fout, "%s ", prefix);
 		}
-		f_print(fout, "%s), xdr_%s", type, type);
+		f_print(fout, "%s), (xdrproc_t)xdr_%s", type, type);
 	}
 }
 
-static
-print_ifclose(indent)
-	int indent;
+static void
+print_ifclose(int indent)
 {
 	f_print(fout, ")) {\n");
 	tabify(fout, indent);
-	f_print(fout, "\treturn (FALSE);\n");
+	f_print(fout, "\t return (FALSE);\n");
 	tabify(fout, indent);
-	f_print(fout, "}\n");
-}
-
-static
-space()
-{
-	f_print(fout, "\n\n");
+	f_print(fout, " }\n");
 }
 
-static
-print_ifstat(indent, prefix, type, rel, amax, objname, name)
-	int indent;
-	char *prefix;
-	char *type;
-	relation rel;
-	char *amax;
-	char *objname;
-	char *name;
+static void
+print_ifstat(int indent, const char *prefix, const char *type, relation rel,
+	     const char *amax, const char *objname, const char *name)
 {
-	char *alt = NULL;
+	const char *alt = NULL;
 
 	switch (rel) {
 	case REL_POINTER:
@@ -243,101 +297,331 @@ print_ifstat(indent, prefix, type, rel, amax, objname, name)
 	print_ifclose(indent);
 }
 
-
-/* ARGSUSED */
-static
-emit_enum(def)
-	definition *def;
+static void
+emit_enum(definition *def)
 {
+	(void)def;
+
 	print_ifopen(1, "enum");
 	print_ifarg("(enum_t *)objp");
 	print_ifclose(1);
 }
 
-
-static
-emit_union(def)
-	definition *def;
+static void
+emit_program(definition *def)
 {
-	declaration *dflt;
-	case_list *cl;
-	declaration *cs;
-	char *object;
-	char *format = "&objp->%s_u.%s";
-
-	print_stat(&def->def.un.enum_decl);
-	f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
-	for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
-		cs = &cl->case_decl;
-		f_print(fout, "\tcase %s:\n", cl->case_name);
-		if (!streq(cs->type, "void")) {
-			object = alloc(strlen(def->def_name) + strlen(format) +
-				       strlen(cs->name) + 1);
-			s_print(object, format, def->def_name, cs->name);
-			print_ifstat(2, cs->prefix, cs->type, cs->rel, cs->array_max,
-				     object, cs->name);
-			free(object);
-		}
-		f_print(fout, "\t\tbreak;\n");
-	}
-	dflt = def->def.un.default_decl;
-	if (dflt != NULL) {
-		if (!streq(dflt->type, "void")) {
-			f_print(fout, "\tdefault:\n");
-			object = alloc(strlen(def->def_name) + strlen(format) +
-				       strlen(dflt->name) + 1);
-			s_print(object, format, def->def_name, dflt->name);
-			print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
-				     dflt->array_max, object, dflt->name);
-			free(object);
-			f_print(fout, "\t\tbreak;\n");
-		}
-	} else {
-		f_print(fout, "\tdefault:\n");
-		f_print(fout, "\t\treturn (FALSE);\n");
-	}
-	f_print(fout, "\t}\n");
+	decl_list *dl;
+	version_list *vlist;
+	proc_list *plist;
+
+	for (vlist = def->def.pr.versions; vlist != NULL;vlist = vlist->next)
+	  for(plist = vlist->procs; plist != NULL; plist = plist->next) {
+		  if (!newstyle || plist->arg_num < 2)
+		    continue; /* old style, or single argument */
+		  print_prog_header(plist);
+		  for (dl = plist->args.decls; dl != NULL;
+		       dl = dl->next)
+			  print_stat(1,&dl->decl);
+		  print_trailer();
+	  }
 }
 
+static void
+emit_union(definition *def)
+{
+  declaration *dflt;
+  case_list *cl;
+  declaration *cs;
+  char *object;
+  const char *vecformat = "objp->%s_u.%s";
+  const char *format = "&objp->%s_u.%s";
+
+  print_stat(1,&def->def.un.enum_decl);
+  f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
+  for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
+
+    f_print(fout, "\tcase %s:\n", cl->case_name);
+    if(cl->contflag == 1)	/* a continued case statement */
+      continue;
+    cs = &cl->case_decl;
+    if (!streq(cs->type, "void")) {
+      object = alloc(strlen(def->def_name) + strlen(format) +
+		     strlen(cs->name) + 1);
+      if (isvectordef(cs->type, cs->rel)) {
+	s_print(object, vecformat, def->def_name,
+		cs->name);
+      } else {
+	s_print(object, format, def->def_name,
+		cs->name);
+      }
+      print_ifstat(2, cs->prefix, cs->type, cs->rel, cs->array_max,
+		   object, cs->name);
+      free(object);
+    }
+    f_print(fout, "\t\tbreak;\n");
+  }
+  dflt = def->def.un.default_decl;
+  if (dflt != NULL) {
+    if (!streq(dflt->type, "void")) {
+      f_print(fout, "\tdefault:\n");
+      object = alloc(strlen(def->def_name) + strlen(format) +
+		     strlen(dflt->name) + 1);
+      if (isvectordef(dflt->type, dflt->rel)) {
+	s_print(object, vecformat, def->def_name,
+		dflt->name);
+      } else {
+	s_print(object, format, def->def_name,
+		dflt->name);
+      }
+
+      print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
+		   dflt->array_max, object, dflt->name);
+      free(object);
+      f_print(fout, "\t\tbreak;\n");
+    }
+#ifdef __GNU_LIBRARY__
+    else {
+      f_print(fout, "\tdefault:\n");
+      f_print(fout, "\t\tbreak;\n");
+    }
+#endif
+  } else {
+    f_print(fout, "\tdefault:\n");
+    f_print(fout, "\t\treturn (FALSE);\n");
+  }
 
+  f_print(fout, "\t}\n");
+}
 
-static
-emit_struct(def)
-	definition *def;
+static void
+emit_struct(definition *def)
 {
 	decl_list *dl;
-
-	for (dl = def->def.st.decls; dl != NULL; dl = dl->next) {
-		print_stat(&dl->decl);
+	int i,j,size,flag;
+	decl_list *cur = NULL,*psav;
+	bas_type *ptr;
+	char *sizestr;
+	const char *plus;
+	char ptemp[256];
+	int can_inline;
+
+
+	if(inlineflag  == 0)	{
+		for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
+			print_stat(1,&dl->decl);
 	}
-}
 
+	else	{
 
+		for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
+			if(dl->decl.rel == REL_VECTOR){
+				f_print(fout,"\t int i;\n");
+				break;
+			}
 
+		size=0;can_inline=0;
+		for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
+			if((dl->decl.prefix == NULL) && ((ptr=find_type(dl->decl.type))!= NULL) && 		 ((dl->decl.rel == REL_ALIAS)||(dl->decl.rel == REL_VECTOR))){
 
-static
-emit_typedef(def)
-	definition *def;
-{
-	char *prefix = def->def.ty.old_prefix;
-	char *type = def->def.ty.old_type;
-	char *amax = def->def.ty.array_max;
-	relation rel = def->def.ty.rel;
+				if(dl->decl.rel == REL_ALIAS)
+					size+=ptr->length;
+				else {
+					can_inline=1;
+					break; /* can be inlined */
+				};
+			}
+			else {
+				if(size >= inlineflag){
+					can_inline=1;
+					break; /* can be inlined */
+				}
+				size=0;
+			}
+		if(size > inlineflag)
+			can_inline=1;
+
+		if(can_inline == 0){ /* can not inline, drop back to old mode */
+			for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
+				print_stat(1,&dl->decl);
+			return;
+		};
+
+
+
+
+		flag=PUT;
+		for(j=0; j<2; j++){
+
+			if(flag == PUT)
+				f_print(fout,"\n\t if (xdrs->x_op == XDR_ENCODE) {\n");
+			else
+				f_print(fout,"\n \t return (TRUE);\n\t} else if (xdrs->x_op == XDR_DECODE) {\n");
+
+
+			i=0;
+			size=0;
+			sizestr=NULL;
+			for (dl = def->def.st.decls; dl != NULL; dl = dl->next) { /* xxx */
+
+				/* now walk down the list and check for basic types */
+				if((dl->decl.prefix == NULL) && ((ptr=find_type(dl->decl.type))!= NULL) && 		 ((dl->decl.rel == REL_ALIAS)||(dl->decl.rel == REL_VECTOR))){
+					if(i ==0 )
+						cur=dl;
+					i++;
+
+					if(dl->decl.rel == REL_ALIAS)
+						size+=ptr->length;
+					else {
+						/* this is required to handle arrays */
+
+						if(sizestr == NULL)
+							plus = " ";
+						else
+							plus = "+";
+
+						if(ptr->length != 1)
+							s_print(ptemp," %s %s * %d",plus,dl->decl.array_max,ptr->length);
+						else
+							s_print(ptemp," %s %s ",plus,dl->decl.array_max);
+
+						/*now concatenate to sizestr !!!! */
+						if (sizestr == NULL)
+							sizestr=strdup(ptemp);
+						else{
+							sizestr=realloc(sizestr,strlen(sizestr)+strlen(ptemp)+1);
+							if(sizestr == NULL){
+
+								f_print(stderr, "Fatal error : no memory \n");
+								crash();
+							};
+							sizestr=strcat(sizestr,ptemp); /*build up length of array */
+
+						}
+					}
+
+				}
+				else{
+					if(i > 0 )
+						if(sizestr == NULL && size < inlineflag){
+							/* don't expand into inline code if size < inlineflag */
+							while(cur != dl){
+								print_stat(1,&cur->decl);
+								cur=cur->next;
+							}
+						}
+						else{
+
+
+
+							/* were already looking at a xdr_inlineable structure */
+							if(sizestr == NULL)
+								f_print(fout,"\t buf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
+									size);
+							else
+								if(size == 0)
+									f_print(fout,
+										"\t buf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
+										sizestr);
+								else
+									f_print(fout,
+										"\t buf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
+										size,sizestr);
+
+							f_print(fout,"\n\t   if (buf == NULL) {\n");
+
+							psav=cur;
+							while(cur != dl){
+								print_stat(2,&cur->decl);
+								cur=cur->next;
+							}
+
+							f_print(fout,"\n\t  }\n\t  else {\n");
+
+							cur=psav;
+							while(cur != dl){
+								emit_inline(&cur->decl,flag);
+								cur=cur->next;
+							}
+
+							f_print(fout,"\t  }\n");
+						}
+					size=0;i=0;sizestr=NULL;
+					print_stat(1,&dl->decl);
+				}
 
-	print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
+			}
+			if(i > 0 )
+				if(sizestr == NULL && size < inlineflag){
+					/* don't expand into inline code if size < inlineflag */
+					while(cur != dl){
+						print_stat(1,&cur->decl);
+						cur=cur->next;
+					}
+				}
+				else{
+
+					/* were already looking at a xdr_inlineable structure */
+					if(sizestr == NULL)
+						f_print(fout,"\t\tbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
+							size);
+					else
+						if(size == 0)
+							f_print(fout,
+								"\t\tbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
+								sizestr);
+						else
+							f_print(fout,
+								"\t\tbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
+								size,sizestr);
+
+					f_print(fout,"\n\t\tif (buf == NULL) {\n");
+
+					psav=cur;
+					while(cur != NULL){
+						print_stat(2,&cur->decl);
+						cur=cur->next;
+					}
+					f_print(fout,"\n\t  }\n\t  else {\n");
+
+					cur=psav;
+					while(cur != dl){
+						emit_inline(&cur->decl,flag);
+						cur=cur->next;
+					}
+
+					f_print(fout,"\t  }\n");
+
+				}
+			flag=GET;
+		}
+		f_print(fout,"\t return(TRUE);\n\t}\n\n");
+
+		/* now take care of XDR_FREE case */
+
+		for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
+			print_stat(1,&dl->decl);
+	}
 }
 
 
+static void
+emit_typedef(definition *def)
+{
+	const char *prefix = def->def.ty.old_prefix;
+	const char *type = def->def.ty.old_type;
+	const char *amax = def->def.ty.array_max;
+	relation rel = def->def.ty.rel;
 
 
+	print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
+}
 
-static
-print_stat(dec)
-	declaration *dec;
+static void
+print_stat(int indent, declaration *dec)
 {
-	char *prefix = dec->prefix;
-	char *type = dec->type;
-	char *amax = dec->array_max;
+	const char *prefix = dec->prefix;
+	const char *type = dec->type;
+	const char *amax = dec->array_max;
 	relation rel = dec->rel;
 	char name[256];
 
@@ -346,5 +630,85 @@ print_stat(dec)
 	} else {
 		s_print(name, "&objp->%s", dec->name);
 	}
-	print_ifstat(1, prefix, type, rel, amax, name, dec->name);
+	print_ifstat(indent, prefix, type, rel, amax, name, dec->name);
+}
+
+
+void
+emit_inline(declaration *decl, int flag)
+{
+
+/*check whether an array or not */
+
+switch(decl->rel)
+  {
+ case  REL_ALIAS :
+  emit_single_in_line(decl,flag,REL_ALIAS);
+  break;
+ case REL_VECTOR :
+   f_print(fout,"\t\t{ register %s *genp; \n",decl->type);
+   f_print(fout,"\t\t  for ( i = 0,genp=objp->%s;\n \t\t\ti < %s; i++){\n\t\t",
+	   decl->name,decl->array_max);
+  emit_single_in_line(decl,flag,REL_VECTOR);
+    f_print(fout,"\t\t   }\n\t\t };\n");
+
+  default:
+    /* ?... do nothing I guess */
+  }
+}
+
+void
+emit_single_in_line(declaration *decl, int flag, relation rel)
+{
+	char *upp_case1;
+	const char *upp_case;
+
+	if (flag == PUT) {
+	    f_print(fout,"\t\t IXDR_PUT_");
+	}
+	else {
+	    if(rel== REL_ALIAS) {
+		f_print(fout, "\t\t objp->%s = IXDR_GET_", decl->name);
+	    }
+	    else {
+		f_print(fout,"\t\t *genp++ = IXDR_GET_");
+	    }
+	}
+
+	upp_case1 = upcase(decl->type);
+	upp_case = upp_case1;
+
+	/* hack  - XX */
+	if (!strcmp(upp_case, "INT")) upp_case="LONG";
+	if (!strcmp(upp_case, "U_INT")) upp_case="U_LONG";
+
+	if (flag == PUT) {
+	    if (rel==REL_ALIAS) {
+		f_print(fout,"%s(buf,objp->%s);\n",upp_case,decl->name);
+	    }
+	    else {
+		f_print(fout,"%s(buf,*genp++);\n",upp_case);
+	    }
+	}
+	else {
+	    f_print(fout,"%s(buf);\n",upp_case);
+	}
+
+	free(upp_case1);
+}
+
+
+static char *upcase(const char *str) {
+    char *ptr, *hptr;
+    ptr = malloc(strlen(str));
+    if (ptr == NULL) {
+	f_print(stderr,"malloc failed\n");
+	exit(1);
+    }
+    hptr=ptr;
+    while (*str != 0) {
+	*ptr++ = toupper(*str++);
+    }
+    *ptr=0;
+    return hptr;
 }