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path: root/support/dktools/dk4sock33.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: dk4sock33.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 dk4sock33.c The dk4sock33 module.
*/


#line 10 "dk4sock33.ctr"

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





#line 21 "dk4sock33.ctr"



/**	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_c8_find_address(dk4_sockaddr_storage_t *dptr, const char *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 44 "dk4sock33.ctr"
  res = dk4socket_c8_inet_pton(&addr4, sizeof(addr4), AF_INET, str, NULL);
  if (DK4_SOCKET_RESULT_SUCCESS == res) {		

#line 46 "dk4sock33.ctr"
    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_c8_inet_pton(&addr6, sizeof(addr6), AF_INET6, str, NULL);
    if (DK4_SOCKET_RESULT_SUCCESS == res) {		

#line 54 "dk4sock33.ctr"
      in6 = (struct sockaddr_in6 *)dptr;
      in6->sin6_family = AF_INET6;
      DK4_MEMCPY(&(in6->sin6_addr), &addr6, sizeof(addr6));
      back = 1;
    }
#endif
  }
  

#line 62 "dk4sock33.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.
	@return	1 on success, 0 on error.
*/
static
int
dk4socket_c8_find_host(
  dk4_sockaddr_storage_t	*dptr,
  const char			*remhost,
  unsigned short		 remport,
  int				 ip4
)
{
#if	DK4_HAVE_GETADDRINFO
  char			 buf[16*sizeof(unsigned short)];
  struct addrinfo	 hints;
  struct addrinfo	*results	= NULL;
  struct addrinfo	*rptr		= NULL;
  int			 back		= 0;
  int			 res		= 0;
  

#line 91 "dk4sock33.ctr"
  res = dk4ma_write_c8_decimal_unsigned(
    buf, sizeof(buf), (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 = getaddrinfo(remhost, buf, &hints, &results);
    if ((0 == res) && (NULL != results)) {	

#line 102 "dk4sock33.ctr"
      if (0 != ip4) {				

#line 103 "dk4sock33.ctr"
        rptr = results;
        while ((NULL != rptr) && (0 == back)) {		

#line 105 "dk4sock33.ctr"
          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 110 "dk4sock33.ctr"
	      } else {					

#line 111 "dk4sock33.ctr"
	      }
	    } else {					

#line 113 "dk4sock33.ctr"
	    }
	  } else {					

#line 115 "dk4sock33.ctr"
	  }
	  rptr = rptr->ai_next;
	}
	if (0 == back) {
          rptr = results;
          while ((NULL != rptr) && (0 == back)) {	

#line 121 "dk4sock33.ctr"
            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 125 "dk4sock33.ctr"
	      } else {					

#line 126 "dk4sock33.ctr"
	      }
	    } else {					

#line 128 "dk4sock33.ctr"
	    }
	    rptr = rptr->ai_next;
	  }
	}
      } else {					

#line 133 "dk4sock33.ctr"
        rptr = results;
        while ((NULL != rptr) && (0 == back)) {	

#line 135 "dk4sock33.ctr"
          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 "dk4sock33.ctr"
	    } else {				

#line 140 "dk4sock33.ctr"
	    }
	  } else {				

#line 142 "dk4sock33.ctr"
	  }
	  rptr = rptr->ai_next;
	}
      }
    } else {			

#line 147 "dk4sock33.ctr"
    }
    if (NULL != results) { freeaddrinfo(results); }
  } else {			

#line 150 "dk4sock33.ctr"
  }
  

#line 152 "dk4sock33.ctr"
  return back;
#else
#if DK4_HAVE_GETHOSTBYNAME
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
  struct sockaddr_in6	*sa6;
#endif
  struct sockaddr_in	*sa4;
  struct hostent	*hep	= NULL;
  int			 back	= 0;
  

#line 162 "dk4sock33.ctr"
  hep = gethostbyname(remhost);
  if (NULL != hep) {					

#line 164 "dk4sock33.ctr"
    if (NULL != hep->h_addr_list) {			

#line 165 "dk4sock33.ctr"
      if (NULL != *(hep->h_addr_list)) {		

#line 166 "dk4sock33.ctr"
        switch (hep->h_addrtype) {
	  case AF_INET : {				

#line 168 "dk4sock33.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 174 "dk4sock33.ctr"
	  } break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
	  case AF_INET6 : {				

#line 177 "dk4sock33.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 183 "dk4sock33.ctr"
	  } break;
#endif
	}
      } else {						

#line 187 "dk4sock33.ctr"
      }
    } else {						

#line 189 "dk4sock33.ctr"
    }
  } else {						

#line 191 "dk4sock33.ctr"
  }
  

#line 193 "dk4sock33.ctr"
  return back;
#else
  int		 back	= 0;
  

#line 197 "dk4sock33.ctr"
  

#line 198 "dk4sock33.ctr"
  return back;
#endif
#endif
}



int
dk4socket_c8_udp_addresses_numeric(
  dk4_sockaddr_storage_t	*array,
  const	char			*remhost,
  unsigned short		 remport,
  unsigned short		 locport,
  int				 ip4,
  dk4_er_t			*erp
)
{
  int		 back	= DK4_SOCKET_RESULT_FAILED;
  

#line 217 "dk4sock33.ctr"
  if ((NULL != array) && (NULL != remhost) && (0 < remport) && (0 < locport)) {
    DK4_MEMRES(array, (2*sizeof(dk4_sockaddr_storage_t)));
    if (0 != dk4socket_c8_find_address(array, remhost)) {
      

#line 221 "dk4sock33.ctr"
      back = dk4socket_complete_addresses(array, remport, locport);
      

#line 223 "dk4sock33.ctr"
    }
    if (DK4_SOCKET_RESULT_FAILED == back) {		

#line 225 "dk4sock33.ctr"
      if (0 != dk4socket_c8_find_host(array, remhost, remport, ip4)) {
        back = dk4socket_complete_addresses(array, remport, locport);
	if (DK4_SOCKET_RESULT_FAILED == back) {		

#line 228 "dk4sock33.ctr"
	  dk4error_set_simple_error_code(erp, DK4_E_BUG);
	}
      } else {						

#line 231 "dk4sock33.ctr"
        dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
      }
    }
  } else {						

#line 235 "dk4sock33.ctr"
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  

#line 238 "dk4sock33.ctr"
  return back;
}