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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4sock15.ctr
*/

/**	@file dk4sock15.c The dk4sock15 module.
*/


#line 10 "dk4sock15.ctr"

#include "dk4conf.h"
#include "dk4sock.h"

#include <stdio.h>

#if DK4_HAVE_ERRNO_H
#ifndef ERRNO_H_INCLUDED
#include <errno.h>
#define	ERRNO_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_FCNTL_H
#ifndef FCNTL_H_INCLUDED
#include <fcntl.h>
#define	FCNTL_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_UNISTD_H
#ifndef	UNISTD_H_INCLUDED
#include <unistd.h>
#define	UNISTD_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_IO_H
#ifndef	IO_H_INCLUDED
#include <io.h>
#define	IO_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif




#line 53 "dk4sock15.ctr"



int
dk4socket_option_set_nonblock(
  dk4_socket_t	 sock,
  int		 val,
  dk4_er_t	*erp
)
{
#if DK4_ON_WINDOWS
  unsigned long	 xv	= 0UL;
  int		 back	= DK4_SOCKET_RESULT_FAILED;
#if	DK4_USE_ASSERT
  assert(INVALID_SOCKET != sock);
#endif
  if (INVALID_SOCKET != sock) {
    if (0 != val) { xv = 0x11111111UL; }
    WSASetLastError(0);
    if (0 == ioctlsocket(sock, FIONBIO, &xv)) {
      back = DK4_SOCKET_RESULT_SUCCESS;
    } else {
      dk4error_set_idetails(erp, DK4_E_SOCKET_IOCTLSOCKET, WSAGetLastError());
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
#else
  int		 back = DK4_SOCKET_RESULT_FAILED;
  int		 om;
#if	DK4_USE_ASSERT
  assert(INVALID_SOCKET != sock);
#endif
  if (INVALID_SOCKET != sock) {
    om = fcntl(sock, F_GETFL);
    if (0 != val) {
      if (0 != (om & O_NONBLOCK)) {
        back = DK4_SOCKET_RESULT_SUCCESS;
      } else {
        om |= O_NONBLOCK;
	errno = 0;
	if (-1 != fcntl(sock, F_SETFL, om)) {
	  back = DK4_SOCKET_RESULT_SUCCESS;
	} else {
	  dk4error_set_idetails(erp, DK4_E_SOCKET_FCNTL, errno);
	}
      }
    } else {
      if (0 == (om & O_NONBLOCK)) {
        back = DK4_SOCKET_RESULT_SUCCESS;
      } else {
        om &= (~(O_NONBLOCK));
	errno = 0;
	if (-1 != fcntl(sock, F_SETFL, om)) {
	  back = DK4_SOCKET_RESULT_SUCCESS;
	} else {
	  dk4error_set_idetails(erp, DK4_E_SOCKET_FCNTL, errno);
	}
      }
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
#endif
}