Subversion Repositories or1k

/* @(#)svc_simple.c     2.2 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.

 *

 * 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

 */

#if 0

static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";

#endif

/*

 * svc_simple.c

 * Simplified front end to rpc.

 *

 * Copyright (C) 1984, Sun Microsystems, Inc.

 */

#define __FORCE_GLIBC

#define _GNU_SOURCE

#include <features.h>

#include <stdio.h>

#include <string.h>

#include <unistd.h>

#include "rpc_private.h"

#include <rpc/pmap_clnt.h>

#include <sys/socket.h>

#include <netdb.h>

#ifdef USE_IN_LIBIO

# include <wchar.h>

# include <libio/iolibio.h>

# define fputs(s, f) _IO_fputs (s, f)

#endif

struct proglst_

  {

    char *(*p_progname) (char *);

    int p_prognum;

    int p_procnum;

    xdrproc_t p_inproc, p_outproc;

    struct proglst_ *p_nxt;

  };

#ifdef __UCLIBC_HAS_THREADS__

#define proglst ((struct proglst_ *)RPC_THREAD_VARIABLE(svcsimple_proglst_s))

#else

static struct proglst_ *proglst;

#endif

static void universal (struct svc_req *rqstp, SVCXPRT *transp_s);

#ifdef __UCLIBC_HAS_THREADS__

#define transp ((SVCXPRT *)RPC_THREAD_VARIABLE(svcsimple_transp_s))

#else

static SVCXPRT *transp;

#endif

int

registerrpc (u_long prognum, u_long versnum, u_long procnum,

             char *(*progname) (char *), xdrproc_t inproc, xdrproc_t outproc)

{

  struct proglst_ *pl;

  char *buf;

  if (procnum == NULLPROC)

    {

      (void) asprintf (&buf, _("can't reassign procedure number %ld\n"),

                         NULLPROC);

      goto err_out;

    }

  if (transp == 0)

    {

      transp = svcudp_create (RPC_ANYSOCK);

      if (transp == NULL)

        {

          buf = strdup (_("couldn't create an rpc server\n"));

          goto err_out;

        }

    }

  (void) pmap_unset ((u_long) prognum, (u_long) versnum);

  if (!svc_register (transp, (u_long) prognum, (u_long) versnum,

                     universal, IPPROTO_UDP))

    {

      (void) asprintf (&buf, _("couldn't register prog %ld vers %ld\n"),

                         prognum, versnum);

      goto err_out;

    }

  pl = (struct proglst_ *) malloc (sizeof (struct proglst_));

  if (pl == NULL)

    {

      buf = strdup (_("registerrpc: out of memory\n"));

      goto err_out;

    }

  pl->p_progname = progname;

  pl->p_prognum = prognum;

  pl->p_procnum = procnum;

  pl->p_inproc = inproc;

  pl->p_outproc = outproc;

  pl->p_nxt = proglst;

  proglst = pl;

  return 0;

 err_out:

#ifdef USE_IN_LIBIO

  if (_IO_fwide (stderr, 0) > 0)

    (void) __fwprintf (stderr, L"%s", buf);

  else

#endif

    (void) fputs (buf, stderr);

  free (buf);

  return -1;

}

static void

universal (struct svc_req *rqstp, SVCXPRT *transp_l)

{

  int prog, proc;

  char *outdata;

  char xdrbuf[UDPMSGSIZE];

  struct proglst_ *pl;

  char *buf = NULL;

  /*

   * enforce "procnum 0 is echo" convention

   */

  if (rqstp->rq_proc == NULLPROC)

    {

      if (svc_sendreply (transp_l, (xdrproc_t)xdr_void, (char *) NULL) == FALSE)

        {

          write (STDERR_FILENO, "xxx\n", 4);

          exit (1);

        }

      return;

    }

  prog = rqstp->rq_prog;

  proc = rqstp->rq_proc;

  for (pl = proglst; pl != NULL; pl = pl->p_nxt)

    if (pl->p_prognum == prog && pl->p_procnum == proc)

      {

        /* decode arguments into a CLEAN buffer */

        bzero (xdrbuf, sizeof (xdrbuf));        /* required ! */

        if (!svc_getargs (transp_l, pl->p_inproc, xdrbuf))

          {

            svcerr_decode (transp_l);

            return;

          }

        outdata = (*(pl->p_progname)) (xdrbuf);

        if (outdata == NULL && pl->p_outproc != (xdrproc_t)xdr_void)

          /* there was an error */

          return;

        if (!svc_sendreply (transp_l, pl->p_outproc, outdata))

          {

            (void) asprintf (&buf,

                               _("trouble replying to prog %d\n"),

                               pl->p_prognum);

            exit (1);

          }

        /* free the decoded arguments */

        (void) svc_freeargs (transp_l, pl->p_inproc, xdrbuf);

        return;

      }

  (void) asprintf (&buf, _("never registered prog %d\n"), prog);

#ifdef USE_IN_LIBIO

  if (_IO_fwide (stderr, 0) > 0)

    __fwprintf (stderr, L"%s", buf);

  else

#endif

    fputs (buf, stderr);

  free (buf);

  exit (1);

}