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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
license		=	bsd


%%	module

#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_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_STRINGS_H
#ifndef	STRINGS_H_INCLUDED
#include <strings.h>
#define	STRINGS_H_INCLUDED 1
#endif
#endif

#include "dk4mem.h"



$!trace-include


int
dk4socket_connect(
  dk4_socket_t		 sock,
  const struct sockaddr	*pAddr,
  size_t		 szAddr,
  dk4_er_t		*erp
)
{
  int		 back = DK4_SOCKET_RESULT_FAILED;
  int		 errc = 0;
  $? "+ dk4socket_connect"
  if ((INVALID_SOCKET != sock) && (NULL != pAddr) && (0 < szAddr)) {
    $? ". args PTR=%d %lu", TR_IPTR(pAddr), (unsigned long)szAddr
    (void)dk4socket_correct_addr_lgt(pAddr, &szAddr);
    dk4socket_error_reset();
#if DK4_HAVE_SOCKLEN_T
    if (0 == connect(sock, pAddr, (socklen_t)szAddr))
#else
    if (0 == connect(sock, pAddr, (int)szAddr))
#endif
    {
      back = DK4_SOCKET_RESULT_SUCCESS;
      $? ". connect() = 0"
    }
    else
    {
      errc = dk4socket_error_get();
      $? "! connect() != 0, error code = %d", errc
#if DK4_ON_WINDOWS
      if (WSAEWOULDBLOCK == errc)
#else
      if (EINPROGRESS == errc)
#endif
      {
        back = DK4_SOCKET_RESULT_IN_PROGRESS;
	$? ". would block"
      }
      else
      {
        dk4error_set_idetails(erp, DK4_E_SOCKET_CONNECT, errc);
	$? "! any error"
      }
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
    $? "! args"
  }
  $? "- dk4socket_connect %d", back
  return back;
}



#if DK4_HAVE_STRUCT_SOCKADDR_UN

/**	Create a UNIX domain socket in client mode.
	@param	filename	File name, max 107 characters long.
	@param	erp		Error report, may be NULL.
	@return	Valid socket on success, INVALID_SOCKET on error.
*/
dk4_socket_t
dk4socket_c8_unix_client(
  const char		*filename,
  dk4_er_t		*erp
)
{
  struct sockaddr_un	 soun;
  size_t		 slen;
  dk4_socket_t		 back	= INVALID_SOCKET;
  int			 res;

  if (NULL != filename) {
    if (108 > strlen(filename)) {
      DK4_MEMRES(&soun, sizeof(soun));
      soun.sun_family = AF_UNIX;
      strcpy(soun.sun_path, filename);
      slen = dk4socket_unix_length(&soun);
      back = dk4socket_open(AF_UNIX, SOCK_STREAM, 0, erp);
      if (INVALID_SOCKET != back) {
        res = dk4socket_connect(
	  back, (const struct sockaddr *)(&soun), slen, erp
	);
	if (DK4_SOCKET_RESULT_SUCCESS != res) {
	  (void)dk4socket_close(back, NULL);
	  back = INVALID_SOCKET;
	}
      }
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}

#endif