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/*
 * 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 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_sample.c  1.1  90/08/30  (C) 1987 SMI";

#endif

/*
 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
 */

#include <stdio.h>
#include <string.h>
#include "rpc_parse.h"
#include "rpc_util.h"


static char RQSTP[] = "rqstp";

void printarglist();

void
write_sample_svc(def)
     definition *def;
{

        if (def->def_kind != DEF_PROGRAM) 
          return;
        write_sample_server(def);
}


int
write_sample_clnt(def)
     definition *def;
{
        version_list *vp;
        int count = 0;

        if (def->def_kind != DEF_PROGRAM) 
          return( 0 );
        /* generate sample code for each version */
        for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
          write_sample_client(def->def_name, vp );
          ++count;
        }
        return( count );
}


static
write_sample_client(program_name, vp )
     char* program_name;
     version_list *vp;
{
  proc_list *proc;
  int i;
  decl_list *l;

  f_print(fout, "\n\nvoid\n" );
  pvname( program_name, vp->vers_num );
  if( Cflag )
    f_print(fout,"( char* host )\n{\n" );
  else
    f_print(fout, "(host)\nchar *host;\n{\n" );
  f_print(fout, "\tCLIENT *clnt;\n");

  i = 0;
  for (proc = vp->procs; proc != NULL; proc = proc->next) {
      f_print(fout, "\t");
      ptype(proc->res_prefix, proc->res_type, 1);
      f_print(fout, " *result_%d;\n",++i);
      /* print out declarations for arguments */
      if( proc->arg_num < 2 && !newstyle) {
        f_print( fout, "\t" );
        if( !streq( proc->args.decls->decl.type, "void") )
          ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1);
        else
          f_print(fout, "char* ");  /* cannot have "void" type */
        f_print(fout, " ");
        pvname( proc->proc_name, vp->vers_num );
        f_print(fout, "_arg;\n");
      } else if (!streq( proc->args.decls->decl.type, "void")) {
        for (l = proc->args.decls; l != NULL; l = l->next) {
          f_print( fout, "\t" );
          ptype(l->decl.prefix, l->decl.type, 1);
          f_print( fout, " ");
          pvname( proc->proc_name, vp->vers_num );
          f_print(fout, "_%s;\n", l->decl.name );
/*        pdeclaration(proc->args.argname, &l->decl, 1, ";\n" );*/
        }
      }
    }

  /* generate creation of client handle */
  f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 
          program_name, vp->vers_name, tirpcflag? "netpath" : "udp");
  f_print(fout, "\tif (clnt == NULL) {\n");
  f_print(fout, "\t\tclnt_pcreateerror(host);\n");
  f_print(fout, "\t\texit(1);\n\t}\n");

  /* generate calls to procedures */
  i = 0;
  for (proc = vp->procs; proc != NULL; proc = proc->next) {
      f_print(fout, "\tresult_%d = ",++i);      
      pvname(proc->proc_name, vp->vers_num);
      if (proc->arg_num < 2 && !newstyle) {
        f_print(fout, "(" );
        if( streq( proc->args.decls->decl.type, "void") )  /* cast to void* */
          f_print(fout, "(void*)");
        f_print(fout, "&" );
        pvname(proc->proc_name, vp->vers_num );
        f_print(fout, "_arg, clnt);\n");
      } else if (streq( proc->args.decls->decl.type, "void")) {
            f_print(fout, "(clnt);\n");
          }
      else {
        f_print(fout, "(");
        for (l = proc->args.decls;  l != NULL; l = l->next) {
          pvname( proc->proc_name, vp->vers_num );
          f_print(fout, "_%s, ", l->decl.name);
        }
        f_print(fout, "clnt);\n");
      }
      f_print(fout, "\tif (result_%d == NULL) {\n", i);
      f_print(fout, "\t\tclnt_perror(clnt, \"call failed:\");\n");
      f_print(fout, "\t}\n");
    }

  f_print(fout, "\tclnt_destroy( clnt );\n" );
  f_print(fout, "}\n");
}

static
write_sample_server(def)
        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) {
                        f_print(fout, "\n");
/*                      if( Cflag )
                          f_print( fout, "extern \"C\"{\n");
*/
                        return_type(proc);
                        f_print(fout, "* \n");
                        if( Cflag )
                          pvname_svc(proc->proc_name, vp->vers_num);
                        else
                          pvname(proc->proc_name, vp->vers_num);
                        printarglist( proc, RQSTP, "struct svc_req *" );

                        f_print(fout, "{\n");
                        f_print(fout, "\n\tstatic ");
                        if( !streq( proc->res_type, "void") )
                          return_type(proc);
                        else
                          f_print(fout, "char*" );  /* cannot have void type */
                        f_print(fout, " result;\n", proc->res_type);
                        f_print(fout, 
                                "\n\t/*\n\t * insert server code here\n\t */\n\n");
                        if( !streq( proc->res_type, "void") )
                          f_print(fout, "\treturn(&result);\n}\n");
                        else  /* cast back to void * */
                          f_print(fout, "\treturn((void*) &result);\n}\n"); 
/*                      if( Cflag)
                          f_print( fout, "};\n");
*/

                }               
        }
}



static 
return_type(plist)
        proc_list *plist;
{
  ptype( plist->res_prefix, plist->res_type, 1 );
}

add_sample_msg()
{
        f_print(fout, "/*\n");
        f_print(fout, " * This is sample code generated by rpcgen.\n");
        f_print(fout, " * These are only templates and you can use them\n");
        f_print(fout, " * as a guideline for developing your own functions.\n");
        f_print(fout, " */\n\n");
}

void
write_sample_clnt_main()
{
  list *l;
  definition *def;
  version_list *vp;

  f_print(fout, "\n\n" );
  if( Cflag )
    f_print(fout,"main( int argc, char* argv[] )\n{\n" );
  else
    f_print(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n{\n" );

  f_print(fout, "\tchar *host;");
  f_print(fout, "\n\n\tif(argc < 2) {");
  f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n" );
  f_print(fout, "\t\texit(1);\n\t}");
  f_print(fout, "\n\thost = argv[1];\n");

  for (l = defined; l != NULL; l = l->next) {
                def = l->val;
                if (def->def_kind != DEF_PROGRAM) {
                        continue;
                }
                for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
                        f_print( fout, "\t" );
                        pvname(def->def_name, vp->vers_num);
                        f_print( fout, "( host );\n" );
                      }
                }
  f_print(fout, "}\n");
}