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path: root/support/dktools/dk4sock34.c
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/*
	WARNING: This file was generated by dkct.
	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: dk4sock34.ctr
*/

/*
Copyright (C) 2016-2017, Dirk Krause

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
  to endorse or promote products derived from this software without specific
  prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/**	@file dk4sock34.c The dk4sock34 module.
*/


#line 10 "dk4sock34.ctr"

#include "dk4conf.h"
#include "dk4types.h"
#include "dk4mem.h"
#include "dk4sock.h"
#include "dk4mai8dus.h"
#include "dk4maowd.h"
#include "dk4mao8d.h"
#include "dk4rec24.h"





#line 23 "dk4sock34.ctr"



#if DK4_ON_WINDOWS

/**	Attempt to convert an IPv4 or IPv6 address from text to address.
	@param	dptr	Destination variable.
	@param	str	Source text.
	@return	1 on success, 0 on error.
*/
static
int
dk4socket_wc_find_address(dk4_sockaddr_storage_t *dptr, const wchar_t *str)
{
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
  struct sockaddr_in6	*in6;
#endif
  struct sockaddr_in	*in4;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
  IN6_ADDR	 addr6;
#endif
  IN_ADDR	 addr4;
  int		 back	= 0;
  int		 res;
  

#line 48 "dk4sock34.ctr"
  res = dk4socket_wc_inet_pton(&addr4, sizeof(addr4), AF_INET, str, NULL);
  if (DK4_SOCKET_RESULT_SUCCESS == res) {
    in4 = (struct sockaddr_in *)dptr;
    in4->sin_family = AF_INET;
    DK4_MEMCPY(&(in4->sin_addr), &addr4, sizeof(addr4));
    back = 1;
  } else {
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
    res = dk4socket_wc_inet_pton(&addr6, sizeof(addr6), AF_INET6, str, NULL);
    if (DK4_SOCKET_RESULT_SUCCESS == res) {
      in6 = (struct sockaddr_in6 *)dptr;
      in6->sin6_family = AF_INET6;
      DK4_MEMCPY(&(in6->sin6_addr), &addr6, sizeof(addr6));
      back = 1;
    }
#endif
  }
  

#line 66 "dk4sock34.ctr"
  return back;
}

/**	Find address for one host name.
	@param	dptr	Address of destination data structure.
	@param	remhost	Remote host name.
	@param	remport	Remote port number in host representation.
	@param	ip4	Flag: Prefer IPv4 over IPv6 addresses.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.
*/
static
int
dk4socket_wc_find_host(
  dk4_sockaddr_storage_t	*dptr,
  const wchar_t			*remhost,
  unsigned short		 remport,
  int				 ip4,
  dk4_er_t			*erp
)
{
#if	DK4_HAVE_GETADDRINFO
  /* +++ getaddrinfo +++ */
  wchar_t	 buf[16*sizeof(unsigned short)];
  ADDRINFOW	 hints;
  ADDRINFOW	*results	= NULL;
  ADDRINFOW	*rptr		= NULL;
  int		 back	= 0;
  int		 res	= 0;
  

#line 96 "dk4sock34.ctr"
  res = dk4ma_write_wc_decimal_unsigned(
    buf, DK4_SIZEOF(buf,wchar_t), (dk4_um_t)remport, 0, NULL
  );
  if (0 != res) {
    DK4_MEMRES(&hints, sizeof(hints));
    hints.ai_family   = AF_UNSPEC;
    hints.ai_socktype = SOCK_DGRAM;
    hints.ai_protocol = 0;
    hints.ai_flags    = AI_NUMERICSERV;
    res = GetAddrInfoW(remhost, buf, &hints, &results);
    if ((0 == res) && (NULL != results)) {		

#line 107 "dk4sock34.ctr"
      if (0 != ip4) {
        rptr = results;
	while ((NULL != rptr) && (0 == back)) {
	  if ((0 < rptr->ai_addrlen) && (NULL != rptr->ai_addr)) {
	    if (AF_INET == rptr->ai_addr->sa_family) {
	      if (sizeof(dk4_sockaddr_storage_t) >= rptr->ai_addrlen) {
	        DK4_MEMCPY(dptr, rptr->ai_addr, rptr->ai_addrlen);
		back = 1;				

#line 115 "dk4sock34.ctr"
	      }
#if TRACE_DEBUG
	      else {					

#line 118 "dk4sock34.ctr"
	      }
#endif
	    }
#if TRACE_DEBUG
	    else {					

#line 123 "dk4sock34.ctr"
	    }
#endif
	  }
#if TRACE_DEBUG
	  else {					

#line 128 "dk4sock34.ctr"
	  }
#endif
	  rptr = rptr->ai_next;
	}
	if (0 == back) {
	  rptr = results;
	  while ((NULL != rptr) && (0 == back)) {
	    if ((0 < rptr->ai_addrlen) && (NULL != rptr->ai_addr)) {
	      if (sizeof(dk4_sockaddr_storage_t) >= rptr->ai_addrlen) {
	        DK4_MEMCPY(dptr, rptr->ai_addr, rptr->ai_addrlen);
		back = 1;				

#line 139 "dk4sock34.ctr"
	      }
#if TRACE_DEBUG
	      else {					

#line 142 "dk4sock34.ctr"
	      }
#endif
	    }
#if TRACE_DEBUG
	    else {					

#line 147 "dk4sock34.ctr"
	    }
#endif
	    rptr = rptr->ai_next;
	  }
	}
      } else {						

#line 153 "dk4sock34.ctr"
        rptr = results;
	 while ((NULL != rptr) && (0 == back)) {
	   if ((0 < rptr->ai_addrlen) && (NULL != rptr->ai_addr)) {
	     if (sizeof(dk4_sockaddr_storage_t) >= rptr->ai_addrlen) {
	       DK4_MEMCPY(dptr, rptr->ai_addr, rptr->ai_addrlen);
	       back = 1;				

#line 159 "dk4sock34.ctr"
	     }
#if TRACE_DEBUG
	     else {					

#line 162 "dk4sock34.ctr"
	     }
#endif
	   }
#if TRACE_DEBUG
	   else {					

#line 167 "dk4sock34.ctr"
	   }
#endif
	   rptr = rptr->ai_next;
	 }
      }
    } else {						

#line 173 "dk4sock34.ctr"
    }
    if (NULL != results) { FreeAddrInfoW(results); }
  }
#if TRACE_DEBUG
  else {			

#line 178 "dk4sock34.ctr"
  }
#endif
  

#line 181 "dk4sock34.ctr"
  return back;
  /* --- getaddrinfo --- */
#else
  /* +++ ! getaddrinfo +++ */
#if DK4_HAVE_GETHOSTBYNAME
  /* +++ gethostbyname +++ */
  char			 hona[1040];
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
  struct sockaddr_in6	*sa6;
#endif
  struct sockaddr_in	*sa4;
  struct hostent	*hep	= NULL;
  int			 back	= 0;
  

#line 195 "dk4sock34.ctr"
  if (0 != dk4recode_wchar_t_to_char(hona, sizeof(hona), remhost, erp)) {
    hep = gethostbyname(hona);
    if (NULL != hep) {				

#line 198 "dk4sock34.ctr"
      if (NULL != hep->h_addr_list) {		

#line 199 "dk4sock34.ctr"
        if (NULL != *(hep->h_addr_list)) {	

#line 200 "dk4sock34.ctr"
	  switch (hep->h_addrtype) {
	    case AF_INET : {			

#line 202 "dk4sock34.ctr"
	      sa4 = (struct sockaddr_in *)dptr;
	      DK4_MEMRES(sa4, sizeof(struct sockaddr_in));
	      sa4->sin_family = AF_INET;
	      sa4->sin_port   = dk4socket_htons(remport);
	      DK4_MEMCPY(&(sa4->sin_addr),*(hep->h_addr_list),sizeof(IN_ADDR));
	      back = 1;				

#line 208 "dk4sock34.ctr"
	    } break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
	    case AF_INET6 : {			

#line 211 "dk4sock34.ctr"
	      sa6 = (struct sockaddr_in6 *)dptr;
	      DK4_MEMRES(sa6, sizeof(struct sockaddr_in6));
	      sa6->sin6_family = AF_INET6;
	      sa6->sin_port    = dk4socket_htons(remport);
	      DK4_MEMCPY(&(sa6->sin6_addr),*(hep->h_addr_list),sizeof(IN6_ADDR));
	      back = 1;				

#line 217 "dk4sock34.ctr"
	    } break;
#endif
#if TRACE_DEBUG
	    default : {				

#line 221 "dk4sock34.ctr"
	    } break;
#endif
	  }
	}
#if TRACE_DEBUG
	else {					

#line 227 "dk4sock34.ctr"
	}
#endif
      }
#if TRACE_DEBUG
      else {					

#line 232 "dk4sock34.ctr"
      }
#endif
    }
#if TRACE_DEBUG
    else {					

#line 237 "dk4sock34.ctr"
    }
#endif
  }
#if TRACE_DEBUG
  else {					

#line 242 "dk4sock34.ctr"
  }
#endif
  

#line 245 "dk4sock34.ctr"
  return back;
  /* --- gethostbyname --- */
#else
  /* +++ ! gethostbyname +++ */
  dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
  return 0;				

#line 251 "dk4sock34.ctr"
  /* --- ! gethostbyname --- */
#endif
  /* --- ! getaddrinfo --- */
#endif
}

#endif

int
dk4socket_wc_udp_addresses_numeric(
  dk4_sockaddr_storage_t	*array,
  const	wchar_t			*remhost,
  unsigned short		 remport,
  unsigned short		 locport,
  int				 ip4,
  dk4_er_t			*erp
)
{
#if DK4_ON_WINDOWS
  int		 back	= DK4_SOCKET_RESULT_FAILED;
  

#line 272 "dk4sock34.ctr"
  if ((NULL != array) && (NULL != remhost) && (0 < remport) && (0 < locport)) {
    DK4_MEMRES(array, (2*sizeof(dk4_sockaddr_storage_t)));
    if (0 != dk4socket_wc_find_address(array, remhost)) {
      

#line 276 "dk4sock34.ctr"
      back = dk4socket_complete_addresses(array, remport, locport);
      

#line 278 "dk4sock34.ctr"
    }
    if (DK4_SOCKET_RESULT_FAILED == back) {			

#line 280 "dk4sock34.ctr"
      if (0 != dk4socket_wc_find_host(array, remhost, remport, ip4, erp)) {
        back = dk4socket_complete_addresses(array, remport, locport);
	if (DK4_SOCKET_RESULT_FAILED == back) {			

#line 283 "dk4sock34.ctr"
	  dk4error_set_simple_error_code(erp, DK4_E_BUG);
	}
      } else {							

#line 286 "dk4sock34.ctr"
        dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
      }
    }
  } else {							

#line 290 "dk4sock34.ctr"
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  

#line 293 "dk4sock34.ctr"
  return back;
#else
  dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
  return 0;
#endif
}


int
dk4socket_udp_addresses_numeric(
  dk4_sockaddr_storage_t	*array,
  const	dkChar			*remhost,
  unsigned short		 remport,
  unsigned short		 locport,
  int				 ip4,
  dk4_er_t			*erp
)
{
#if DK4_CHAR_SIZE > 1
  return (
    dk4socket_wc_udp_addresses_numeric(
      array, remhost, remport, locport, ip4, erp
    )
  );
#else
  return (
    dk4socket_c8_udp_addresses_numeric(
      array, remhost, remport, locport, ip4, erp
    )
  );
#endif
}