sunrpc/rpc_clntout.c - nest-cam/v366/glibc - Git at Google

 /*
  * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
  * Copyright (c) 2010, Oracle America, Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  *       notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  *       copyright notice, this list of conditions and the following
  *       disclaimer in the documentation and/or other materials
  *       provided with the distribution.
  *     * Neither the name of the "Oracle America, Inc." nor the names of its
  *       contributors may be used to endorse or promote products derived
  *       from this software without specific prior written permission.
  *
  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include <stdio.h>
 #include <string.h>
 #include <rpc/types.h>
 #include "rpc_parse.h"
 #include "rpc_util.h"
 #include "proto.h"

 #define DEFAULT_TIMEOUT 25	/* in seconds */
 static const char RESULT[] = "clnt_res";

 static void write_program (definition * def);
 static void printbody (proc_list * proc);
 static const char *ampr (const char *type);
 static void printbody (proc_list * proc);


 void
 write_stubs (void)
 {
   list *l;
   definition *def;

   fprintf (fout,
 	   "\n/* Default timeout can be changed using clnt_control() */\n");
   fprintf (fout, "static struct timeval TIMEOUT = { %d, 0 };\n",
 	   DEFAULT_TIMEOUT);
   for (l = defined; l != NULL; l = l->next)
     {
       def = (definition *) l->val;
       if (def->def_kind == DEF_PROGRAM)
 	{
 	  write_program (def);
 	}
     }
 }

 static void
 write_program (definition * def)
 {
   version_list *vp;
   proc_list *proc;

   for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
     {
       for (proc = vp->procs; proc != NULL; proc = proc->next)
 	{
 	  fprintf (fout, "\n");
 	  if (mtflag == 0)
 	    {
 	      ptype (proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*\n");
 	      pvname (proc->proc_name, vp->vers_num);
 	      printarglist (proc, RESULT, "clnt", "CLIENT *");
 	    }
 	  else
 	    {
 	      fprintf (fout, "enum clnt_stat \n");
 	      pvname (proc->proc_name, vp->vers_num);
 	      printarglist (proc, RESULT, "clnt", "CLIENT *");
 	    }
 	  fprintf (fout, "{\n");
 	  printbody (proc);
 	  fprintf (fout, "}\n");
 	}
     }
 }

 /* Writes out declarations of procedure's argument list.
    In either ANSI C style, in one of old rpcgen style (pass by reference),
    or new rpcgen style (multiple arguments, pass by value);
  */

 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */

 void
 printarglist (proc_list * proc,  const char *result,
 	      const char *addargname, const char *addargtype)
 {

   decl_list *l;

   if (!newstyle)
     { /* old style: always pass argument by reference */
       if (Cflag)
 	{			/* C++ style heading */
 	  fprintf (fout, "(");
 	  ptype (proc->args.decls->decl.prefix,
 		 proc->args.decls->decl.type, 1);

 	  if (mtflag)
 	    {/* Generate result field */
 	      fprintf (fout, "*argp, ");
 	      ptype(proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
 	    }
 	  else
 	    fprintf (fout, "*argp, %s%s)\n", addargtype, addargname);
 	}
       else
 	{
 	  if (!mtflag)
 	    fprintf (fout, "(argp, %s)\n", addargname);
 	  else
 	    fprintf (fout, "(argp, %s, %s)\n", result, addargname);
 	  fprintf (fout, "\t");
 	  ptype (proc->args.decls->decl.prefix,
 		 proc->args.decls->decl.type, 1);
 	  fprintf (fout, "*argp;\n");
 	  if (mtflag)
 	    {
 	      fprintf (fout, "\t");
 	      ptype (proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*%s;\n", result);
 	    }
 	}
     }
   else if (streq (proc->args.decls->decl.type, "void"))
     {
       /* newstyle, 0 argument */
       if (mtflag)
 	{
 	  fprintf (fout, "(");
 	  if (Cflag)
 	    {
 	      ptype(proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
 	    }
 	  else
 	    fprintf (fout, "(%s)\n", addargname);
 	}
       else if (Cflag)
 	fprintf (fout, "(%s%s)\n", addargtype, addargname);
       else
 	fprintf (fout, "(%s)\n", addargname);
     }
   else
     {
       /* new style, 1 or multiple arguments */
       if (!Cflag)
 	{
 	  fprintf (fout, "(");
 	  for (l = proc->args.decls; l != NULL; l = l->next)
 	    fprintf (fout, "%s, ", l->decl.name);
 	  if (mtflag)
 	    fprintf (fout, "%s, ", result);
  	  fprintf (fout, "%s)\n", addargname);
 	  for (l = proc->args.decls; l != NULL; l = l->next)
 	    {
 	      pdeclaration (proc->args.argname, &l->decl, 1, ";\n");
 	    }
 	  if (mtflag)
 	    {
 	      fprintf (fout, "\t");
 	      ptype (proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*%s;\n", result);
 	    }
 	}
       else
 	{			/* C++ style header */
 	  fprintf (fout, "(");
 	  for (l = proc->args.decls; l != NULL; l = l->next)
 	    {
 	      pdeclaration (proc->args.argname, &l->decl, 0, ", ");
 	    }
 	  if (mtflag)
 	    {
 	      ptype (proc->res_prefix, proc->res_type, 1);
 	      fprintf (fout, "*%s, ", result);
 	    }
  	  fprintf (fout, " %s%s)\n", addargtype, addargname);
 	}
     }

   if (!Cflag)
     fprintf (fout, "\t%s%s;\n", addargtype, addargname);
 }


 static
 const char *
 ampr (const char *type)
 {
   if (isvectordef (type, REL_ALIAS))
     {
       return "";
     }
   else
     {
       return "&";
     }
 }

 static void
 printbody (proc_list * proc)
 {
   decl_list *l;
   bool_t args2 = (proc->arg_num > 1);
 /*  int i; */

   /* For new style with multiple arguments, need a structure in which
      to stuff the arguments. */
   if (newstyle && args2)
     {
       fprintf (fout, "\t%s", proc->args.argname);
       fprintf (fout, " arg;\n");
     }
   if (!mtflag)
     {
       fprintf (fout, "\tstatic ");
       if (streq (proc->res_type, "void"))
 	{
 	  fprintf (fout, "char ");
 	}
       else
 	{
 	  ptype (proc->res_prefix, proc->res_type, 0);
 	}
       fprintf (fout, "%s;\n", RESULT);
       fprintf (fout, "\n");
       fprintf (fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",
 	       ampr (proc->res_type), RESULT, RESULT);
     }
   if (newstyle && !args2 && (streq (proc->args.decls->decl.type, "void")))
     {
       /* newstyle, 0 arguments */
       if (mtflag)
 	fprintf (fout, "\t return ");
       else
 	fprintf (fout, "\t if ");
       fprintf (fout,
 	       "(clnt_call (clnt, %s, (xdrproc_t) xdr_void, ", proc->proc_name);

       fprintf (fout,
 	       "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
 	       stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
 	       RESULT);
       if (mtflag)
 	fprintf (fout, "\n\t\tTIMEOUT));\n\n");
       else
 	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
     }
   else if (newstyle && args2)
     {
       /* newstyle, multiple arguments:  stuff arguments into structure */
       for (l = proc->args.decls; l != NULL; l = l->next)
 	{
 	  fprintf (fout, "\targ.%s = %s;\n",
 		   l->decl.name, l->decl.name);
 	}
       if (mtflag)
 	fprintf (fout, "\treturn ");
       else
 	fprintf (fout, "\tif ");

       fprintf (fout,
 	       "(clnt_call (clnt, %s, (xdrproc_t) xdr_%s", proc->proc_name,
 	       proc->args.argname);
       fprintf (fout,
 	       ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
 	       stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
 	       RESULT);
       if (mtflag)
 	fprintf (fout, "\n\t\tTIMEOUT));\n");
       else
 	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
     }
   else
     {				/* single argument, new or old style */
       if (!mtflag)
 	fprintf (fout,
 		 "\tif (clnt_call (clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT) != RPC_SUCCESS) {\n",
 		 proc->proc_name,
 		 stringfix (proc->args.decls->decl.type),
 		 (newstyle ? "&" : ""),
 		 (newstyle ? proc->args.decls->decl.name : "argp"),
 		 stringfix (proc->res_type), ampr (proc->res_type),
 		 RESULT);
       else
 	fprintf(fout,
 		"\treturn (clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT));\n",
 		proc->proc_name,
 		stringfix (proc->args.decls->decl.type),
 		(newstyle ? "&" : ""),
 		(newstyle ? proc->args.decls->decl.name : "argp"),
 		stringfix (proc->res_type), "",
 		RESULT);
     }
   if (!mtflag)
     {
       fprintf (fout, "\t\treturn (NULL);\n");
       fprintf (fout, "\t}\n");
       if (streq (proc->res_type, "void"))
 	{
 	  fprintf (fout, "\treturn ((void *)%s%s);\n",
 		   ampr (proc->res_type), RESULT);
 	}
       else
 	{
 	  fprintf (fout, "\treturn (%s%s);\n", ampr (proc->res_type), RESULT);
 	}
     }
 }
	/*
	* rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
	* Copyright (c) 2010, Oracle America, Inc.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials
	* provided with the distribution.
	* * Neither the name of the "Oracle America, Inc." nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
	* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/
	#include <stdio.h>
	#include <string.h>
	#include <rpc/types.h>
	#include "rpc_parse.h"
	#include "rpc_util.h"
	#include "proto.h"

	#define DEFAULT_TIMEOUT 25 /* in seconds */
	static const char RESULT[] = "clnt_res";

	static void write_program (definition * def);
	static void printbody (proc_list * proc);
	static const char ampr (const char type);
	static void printbody (proc_list * proc);


	void
	write_stubs (void)
	{
	list *l;
	definition *def;

	fprintf (fout,
	"\n/* Default timeout can be changed using clnt_control() */\n");
	fprintf (fout, "static struct timeval TIMEOUT = { %d, 0 };\n",
	DEFAULT_TIMEOUT);
	for (l = defined; l != NULL; l = l->next)
	{
	def = (definition *) l->val;
	if (def->def_kind == DEF_PROGRAM)
	{
	write_program (def);
	}
	}
	}

	static void
	write_program (definition * def)
	{
	version_list *vp;
	proc_list *proc;

	for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
	{
	for (proc = vp->procs; proc != NULL; proc = proc->next)
	{
	fprintf (fout, "\n");
	if (mtflag == 0)
	{
	ptype (proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*\n");
	pvname (proc->proc_name, vp->vers_num);
	printarglist (proc, RESULT, "clnt", "CLIENT *");
	}
	else
	{
	fprintf (fout, "enum clnt_stat \n");
	pvname (proc->proc_name, vp->vers_num);
	printarglist (proc, RESULT, "clnt", "CLIENT *");
	}
	fprintf (fout, "{\n");
	printbody (proc);
	fprintf (fout, "}\n");
	}
	}
	}

	/* Writes out declarations of procedure's argument list.
	In either ANSI C style, in one of old rpcgen style (pass by reference),
	or new rpcgen style (multiple arguments, pass by value);
	*/

	/* sample addargname = "clnt"; sample addargtype = "CLIENT * " */

	void
	printarglist (proc_list * proc, const char *result,
	const char addargname, const char addargtype)
	{

	decl_list *l;

	if (!newstyle)
	{ /* old style: always pass argument by reference */
	if (Cflag)
	{ /* C++ style heading */
	fprintf (fout, "(");
	ptype (proc->args.decls->decl.prefix,
	proc->args.decls->decl.type, 1);

	if (mtflag)
	{/* Generate result field */
	fprintf (fout, "*argp, ");
	ptype(proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
	}
	else
	fprintf (fout, "*argp, %s%s)\n", addargtype, addargname);
	}
	else
	{
	if (!mtflag)
	fprintf (fout, "(argp, %s)\n", addargname);
	else
	fprintf (fout, "(argp, %s, %s)\n", result, addargname);
	fprintf (fout, "\t");
	ptype (proc->args.decls->decl.prefix,
	proc->args.decls->decl.type, 1);
	fprintf (fout, "*argp;\n");
	if (mtflag)
	{
	fprintf (fout, "\t");
	ptype (proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*%s;\n", result);
	}
	}
	}
	else if (streq (proc->args.decls->decl.type, "void"))
	{
	/* newstyle, 0 argument */
	if (mtflag)
	{
	fprintf (fout, "(");
	if (Cflag)
	{
	ptype(proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
	}
	else
	fprintf (fout, "(%s)\n", addargname);
	}
	else if (Cflag)
	fprintf (fout, "(%s%s)\n", addargtype, addargname);
	else
	fprintf (fout, "(%s)\n", addargname);
	}
	else
	{
	/* new style, 1 or multiple arguments */
	if (!Cflag)
	{
	fprintf (fout, "(");
	for (l = proc->args.decls; l != NULL; l = l->next)
	fprintf (fout, "%s, ", l->decl.name);
	if (mtflag)
	fprintf (fout, "%s, ", result);
	fprintf (fout, "%s)\n", addargname);
	for (l = proc->args.decls; l != NULL; l = l->next)
	{
	pdeclaration (proc->args.argname, &l->decl, 1, ";\n");
	}
	if (mtflag)
	{
	fprintf (fout, "\t");
	ptype (proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*%s;\n", result);
	}
	}
	else
	{ /* C++ style header */
	fprintf (fout, "(");
	for (l = proc->args.decls; l != NULL; l = l->next)
	{
	pdeclaration (proc->args.argname, &l->decl, 0, ", ");
	}
	if (mtflag)
	{
	ptype (proc->res_prefix, proc->res_type, 1);
	fprintf (fout, "*%s, ", result);
	}
	fprintf (fout, " %s%s)\n", addargtype, addargname);
	}
	}

	if (!Cflag)
	fprintf (fout, "\t%s%s;\n", addargtype, addargname);
	}


	static
	const char *
	ampr (const char *type)
	{
	if (isvectordef (type, REL_ALIAS))
	{
	return "";
	}
	else
	{
	return "&";
	}
	}

	static void
	printbody (proc_list * proc)
	{
	decl_list *l;
	bool_t args2 = (proc->arg_num > 1);
	/* int i; */

	/* For new style with multiple arguments, need a structure in which
	to stuff the arguments. */
	if (newstyle && args2)
	{
	fprintf (fout, "\t%s", proc->args.argname);
	fprintf (fout, " arg;\n");
	}
	if (!mtflag)
	{
	fprintf (fout, "\tstatic ");
	if (streq (proc->res_type, "void"))
	{
	fprintf (fout, "char ");
	}
	else
	{
	ptype (proc->res_prefix, proc->res_type, 0);
	}
	fprintf (fout, "%s;\n", RESULT);
	fprintf (fout, "\n");
	fprintf (fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",
	ampr (proc->res_type), RESULT, RESULT);
	}
	if (newstyle && !args2 && (streq (proc->args.decls->decl.type, "void")))
	{
	/* newstyle, 0 arguments */
	if (mtflag)
	fprintf (fout, "\t return ");
	else
	fprintf (fout, "\t if ");
	fprintf (fout,
	"(clnt_call (clnt, %s, (xdrproc_t) xdr_void, ", proc->proc_name);

	fprintf (fout,
	"(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
	stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
	RESULT);
	if (mtflag)
	fprintf (fout, "\n\t\tTIMEOUT));\n\n");
	else
	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
	}
	else if (newstyle && args2)
	{
	/* newstyle, multiple arguments: stuff arguments into structure */
	for (l = proc->args.decls; l != NULL; l = l->next)
	{
	fprintf (fout, "\targ.%s = %s;\n",
	l->decl.name, l->decl.name);
	}
	if (mtflag)
	fprintf (fout, "\treturn ");
	else
	fprintf (fout, "\tif ");

	fprintf (fout,
	"(clnt_call (clnt, %s, (xdrproc_t) xdr_%s", proc->proc_name,
	proc->args.argname);
	fprintf (fout,
	", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
	stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
	RESULT);
	if (mtflag)
	fprintf (fout, "\n\t\tTIMEOUT));\n");
	else
	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
	}
	else
	{ /* single argument, new or old style */
	if (!mtflag)
	fprintf (fout,
	"\tif (clnt_call (clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT) != RPC_SUCCESS) {\n",
	proc->proc_name,
	stringfix (proc->args.decls->decl.type),
	(newstyle ? "&" : ""),
	(newstyle ? proc->args.decls->decl.name : "argp"),
	stringfix (proc->res_type), ampr (proc->res_type),
	RESULT);
	else
	fprintf(fout,
	"\treturn (clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT));\n",
	proc->proc_name,
	stringfix (proc->args.decls->decl.type),
	(newstyle ? "&" : ""),
	(newstyle ? proc->args.decls->decl.name : "argp"),
	stringfix (proc->res_type), "",
	RESULT);
	}
	if (!mtflag)
	{
	fprintf (fout, "\t\treturn (NULL);\n");
	fprintf (fout, "\t}\n");
	if (streq (proc->res_type, "void"))
	{
	fprintf (fout, "\treturn ((void *)%s%s);\n",
	ampr (proc->res_type), RESULT);
	}
	else
	{
	fprintf (fout, "\treturn (%s%s);\n", ampr (proc->res_type), RESULT);
	}
	}
	}