/* assuan-io.c - Wraps the read and write functions.
 *	Copyright (C) 2002, 2004, 2006 Free Software Foundation, Inc.
 *
 * This file is part of Assuan.
 *
 * Assuan is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * Assuan is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 * USA. 
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <errno.h>
#ifdef HAVE_W32_SYSTEM
# include <windows.h>
#else
# include <sys/wait.h>
#endif

#include "assuan-defs.h"


#ifndef HAVE_W32_SYSTEM
pid_t 
_assuan_waitpid (pid_t pid, int *status, int options)
{
  return waitpid (pid, status, options);
}
#endif


ssize_t
_assuan_simple_read (assuan_context_t ctx, void *buffer, size_t size)
{
  return read (ctx->inbound.fd, buffer, size);
}

ssize_t
_assuan_simple_write (assuan_context_t ctx, const void *buffer, size_t size)
{
  return write (ctx->outbound.fd, buffer, size);
}


ssize_t
_assuan_simple_sendmsg (assuan_context_t ctx, struct msghdr *msg)
{
#ifdef HAVE_W32_SYSTEM
  return _assuan_error (ASSUAN_Not_Implemented);
#else
  int ret;
  while ( (ret = sendmsg (ctx->outbound.fd, msg, 0)) == -1 && errno == EINTR)
    ;
  return ret;
#endif
}


ssize_t
_assuan_simple_recvmsg (assuan_context_t ctx, struct msghdr *msg)
{
#ifdef HAVE_W32_SYSTEM
  return _assuan_error (ASSUAN_Not_Implemented);
#else
  int ret;
  while ( (ret = recvmsg (ctx->inbound.fd, msg, 0)) == -1 && errno == EINTR)
    ;
  return ret;
#endif
}