summaryrefslogtreecommitdiff
path: root/support/dktools/dk4sock33.c
blob: de76192161eda77a8d42bb9cf2c408b23cafea1e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/*
Copyright (C) 2016-2020, 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: dk4sock33.ctr
*/

/**	@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"

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




#line 27 "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 50 "dk4sock33.ctr"
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(NULL != str);
#endif
  res = dk4socket_c8_inet_pton(&addr4, sizeof(addr4), AF_INET, str, NULL);
  if (DK4_SOCKET_RESULT_SUCCESS == res) {		

#line 56 "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 64 "dk4sock33.ctr"
      in6 = (struct sockaddr_in6 *)dptr;
      in6->sin6_family = AF_INET6;
      DK4_MEMCPY(&(in6->sin6_addr), &addr6, sizeof(addr6));
      back = 1;
    }
#endif
  }
  

#line 72 "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 101 "dk4sock33.ctr"
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(NULL != remhost);
  assert(0 < remport);
#endif
  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 117 "dk4sock33.ctr"
      if (0 != ip4) {				

#line 118 "dk4sock33.ctr"
        rptr = results;
        while ((NULL != rptr) && (0 == back)) {		

#line 120 "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 125 "dk4sock33.ctr"
	      } else {					

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

#line 128 "dk4sock33.ctr"
	    }
	  } else {					

#line 130 "dk4sock33.ctr"
	  }
	  rptr = rptr->ai_next;
	}
	if (0 == back) {
          rptr = results;
          while ((NULL != rptr) && (0 == back)) {	

#line 136 "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 140 "dk4sock33.ctr"
	      } else {					

#line 141 "dk4sock33.ctr"
	      }
	    } else {					

#line 143 "dk4sock33.ctr"
	    }
	    rptr = rptr->ai_next;
	  }
	}
      } else {					

#line 148 "dk4sock33.ctr"
        rptr = results;
        while ((NULL != rptr) && (0 == back)) {	

#line 150 "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 154 "dk4sock33.ctr"
	    } else {				

#line 155 "dk4sock33.ctr"
	    }
	  } else {				

#line 157 "dk4sock33.ctr"
	  }
	  rptr = rptr->ai_next;
	}
      }
    } else {			

#line 162 "dk4sock33.ctr"
    }
    if (NULL != results) { freeaddrinfo(results); }
  } else {			

#line 165 "dk4sock33.ctr"
  }
  

#line 167 "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 177 "dk4sock33.ctr"
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(NULL != remhost);
  assert(0 < remport);
#endif
  hep = gethostbyname(remhost);
  if (NULL != hep) {					

#line 184 "dk4sock33.ctr"
    if (NULL != hep->h_addr_list) {			

#line 185 "dk4sock33.ctr"
      if (NULL != *(hep->h_addr_list)) {		

#line 186 "dk4sock33.ctr"
        switch (hep->h_addrtype) {
	  case AF_INET : {				

#line 188 "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 194 "dk4sock33.ctr"
	  } break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
	  case AF_INET6 : {				

#line 197 "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 203 "dk4sock33.ctr"
	  } break;
#endif
	}
      } else {						

#line 207 "dk4sock33.ctr"
      }
    } else {						

#line 209 "dk4sock33.ctr"
    }
  } else {						

#line 211 "dk4sock33.ctr"
  }
  

#line 213 "dk4sock33.ctr"
  return back;
#else
  int		 back	= 0;
  

#line 217 "dk4sock33.ctr"
  

#line 218 "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 237 "dk4sock33.ctr"
#if	DK4_USE_ASSERT
  assert(NULL != array);
  assert(NULL != remhost);
  assert(0 < remport);
  assert(0 < locport);
#endif
  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 247 "dk4sock33.ctr"
      back = dk4socket_complete_addresses(array, remport, locport);
      

#line 249 "dk4sock33.ctr"
    }
    if (DK4_SOCKET_RESULT_FAILED == back) {		

#line 251 "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 254 "dk4sock33.ctr"
	  dk4error_set_simple_error_code(erp, DK4_E_BUG);
	}
      } else {						

#line 257 "dk4sock33.ctr"
        dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
      }
    }
  } else {						

#line 261 "dk4sock33.ctr"
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  

#line 264 "dk4sock33.ctr"
  return back;
}