OpenCoverage

bss_dgram.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/bio/bss_dgram.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* $OpenBSD: bss_dgram.c,v 1.42 2018/05/12 17:47:53 tb Exp $ */-
2/* -
3 * DTLS implementation written by Nagendra Modadugu-
4 * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. -
5 */-
6/* ====================================================================-
7 * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.-
8 *-
9 * Redistribution and use in source and binary forms, with or without-
10 * modification, are permitted provided that the following conditions-
11 * are met:-
12 *-
13 * 1. Redistributions of source code must retain the above copyright-
14 * notice, this list of conditions and the following disclaimer. -
15 *-
16 * 2. Redistributions in binary form must reproduce the above copyright-
17 * notice, this list of conditions and the following disclaimer in-
18 * the documentation and/or other materials provided with the-
19 * distribution.-
20 *-
21 * 3. All advertising materials mentioning features or use of this-
22 * software must display the following acknowledgment:-
23 * "This product includes software developed by the OpenSSL Project-
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"-
25 *-
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to-
27 * endorse or promote products derived from this software without-
28 * prior written permission. For written permission, please contact-
29 * openssl-core@OpenSSL.org.-
30 *-
31 * 5. Products derived from this software may not be called "OpenSSL"-
32 * nor may "OpenSSL" appear in their names without prior written-
33 * permission of the OpenSSL Project.-
34 *-
35 * 6. Redistributions of any form whatsoever must retain the following-
36 * acknowledgment:-
37 * "This product includes software developed by the OpenSSL Project-
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"-
39 *-
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY-
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR-
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR-
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,-
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;-
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,-
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)-
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED-
51 * OF THE POSSIBILITY OF SUCH DAMAGE.-
52 * ====================================================================-
53 *-
54 * This product includes cryptographic software written by Eric Young-
55 * (eay@cryptsoft.com). This product includes software written by Tim-
56 * Hudson (tjh@cryptsoft.com).-
57 *-
58 */-
59-
60#include <sys/socket.h>-
61#include <sys/time.h>-
62-
63#include <netinet/in.h>-
64-
65#include <errno.h>-
66#include <netdb.h>-
67#include <stdio.h>-
68#include <string.h>-
69#include <unistd.h>-
70-
71#include <openssl/opensslconf.h>-
72-
73#include <openssl/bio.h>-
74-
75#ifndef OPENSSL_NO_DGRAM-
76-
77-
78static int dgram_write(BIO *h, const char *buf, int num);-
79static int dgram_read(BIO *h, char *buf, int size);-
80static int dgram_puts(BIO *h, const char *str);-
81static long dgram_ctrl(BIO *h, int cmd, long arg1, void *arg2);-
82static int dgram_new(BIO *h);-
83static int dgram_free(BIO *data);-
84static int dgram_clear(BIO *bio);-
85-
86-
87static int BIO_dgram_should_retry(int s);-
88-
89static const BIO_METHOD methods_dgramp = {-
90 .type = BIO_TYPE_DGRAM,-
91 .name = "datagram socket",-
92 .bwrite = dgram_write,-
93 .bread = dgram_read,-
94 .bputs = dgram_puts,-
95 .ctrl = dgram_ctrl,-
96 .create = dgram_new,-
97 .destroy = dgram_free-
98};-
99-
100-
101typedef struct bio_dgram_data_st {-
102 union {-
103 struct sockaddr sa;-
104 struct sockaddr_in sa_in;-
105 struct sockaddr_in6 sa_in6;-
106 } peer;-
107 unsigned int connected;-
108 unsigned int _errno;-
109 unsigned int mtu;-
110 struct timeval next_timeout;-
111 struct timeval socket_timeout;-
112} bio_dgram_data;-
113-
114-
115const BIO_METHOD *-
116BIO_s_datagram(void)-
117{-
118 return (&methods_dgramp);
never executed: return (&methods_dgramp);
0
119}-
120-
121BIO *-
122BIO_new_dgram(int fd, int close_flag)-
123{-
124 BIO *ret;-
125-
126 ret = BIO_new(BIO_s_datagram());-
127 if (ret == NULL)
ret == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
128 return (NULL);
never executed: return ( ((void *)0) );
0
129 BIO_set_fd(ret, fd, close_flag);-
130 return (ret);
never executed: return (ret);
0
131}-
132-
133static int-
134dgram_new(BIO *bi)-
135{-
136 bio_dgram_data *data = NULL;-
137-
138 bi->init = 0;-
139 bi->num = 0;-
140 data = calloc(1, sizeof(bio_dgram_data));-
141 if (data == NULL)
data == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
142 return 0;
never executed: return 0;
0
143 bi->ptr = data;-
144-
145 bi->flags = 0;-
146 return (1);
never executed: return (1);
0
147}-
148-
149static int-
150dgram_free(BIO *a)-
151{-
152 bio_dgram_data *data;-
153-
154 if (a == NULL)
a == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
155 return (0);
never executed: return (0);
0
156 if (!dgram_clear(a))
!dgram_clear(a)Description
TRUEnever evaluated
FALSEnever evaluated
0
157 return 0;
never executed: return 0;
0
158-
159 data = (bio_dgram_data *)a->ptr;-
160 free(data);-
161-
162 return (1);
never executed: return (1);
0
163}-
164-
165static int-
166dgram_clear(BIO *a)-
167{-
168 if (a == NULL)
a == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
169 return (0);
never executed: return (0);
0
170 if (a->shutdown) {
a->shutdownDescription
TRUEnever evaluated
FALSEnever evaluated
0
171 if (a->init) {
a->initDescription
TRUEnever evaluated
FALSEnever evaluated
0
172 shutdown(a->num, SHUT_RDWR);-
173 close(a->num);-
174 }
never executed: end of block
0
175 a->init = 0;-
176 a->flags = 0;-
177 }
never executed: end of block
0
178 return (1);
never executed: return (1);
0
179}-
180-
181static void-
182dgram_adjust_rcv_timeout(BIO *b)-
183{-
184#if defined(SO_RCVTIMEO)-
185 bio_dgram_data *data = (bio_dgram_data *)b->ptr;-
186-
187 /* Is a timer active? */-
188 if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) {
data->next_timeout.tv_sec > 0Description
TRUEnever evaluated
FALSEnever evaluated
data->next_timeout.tv_usec > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
189 struct timeval timenow, timeleft;-
190-
191 /* Read current socket timeout */-
192 socklen_t sz = sizeof(data->socket_timeout);-
193 if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
getsockopt(b->...out), &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
194 &(data->socket_timeout), &sz) < 0) {
getsockopt(b->...out), &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
195 perror("getsockopt");-
196 }
never executed: end of block
0
197-
198 /* Get current time */-
199 gettimeofday(&timenow, NULL);-
200-
201 /* Calculate time left until timer expires */-
202 memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval));-
203 timeleft.tv_sec -= timenow.tv_sec;-
204 timeleft.tv_usec -= timenow.tv_usec;-
205 if (timeleft.tv_usec < 0) {
timeleft.tv_usec < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
206 timeleft.tv_sec--;-
207 timeleft.tv_usec += 1000000;-
208 }
never executed: end of block
0
209-
210 if (timeleft.tv_sec < 0) {
timeleft.tv_sec < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
211 timeleft.tv_sec = 0;-
212 timeleft.tv_usec = 1;-
213 }
never executed: end of block
0
214-
215 /* Adjust socket timeout if next handhake message timer-
216 * will expire earlier.-
217 */-
218 if ((data->socket_timeout.tv_sec == 0 &&
data->socket_t...ut.tv_sec == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
219 data->socket_timeout.tv_usec == 0) ||
data->socket_t...t.tv_usec == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
220 (data->socket_timeout.tv_sec > timeleft.tv_sec) ||
(data->socket_...meleft.tv_sec)Description
TRUEnever evaluated
FALSEnever evaluated
0
221 (data->socket_timeout.tv_sec == timeleft.tv_sec &&
data->socket_t...imeleft.tv_secDescription
TRUEnever evaluated
FALSEnever evaluated
0
222 data->socket_timeout.tv_usec >= timeleft.tv_usec)) {
data->socket_t...meleft.tv_usecDescription
TRUEnever evaluated
FALSEnever evaluated
0
223 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
224 &timeleft, sizeof(struct timeval)) < 0) {
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
225 perror("setsockopt");-
226 }
never executed: end of block
0
227 }
never executed: end of block
0
228 }
never executed: end of block
0
229#endif-
230}
never executed: end of block
0
231-
232static void-
233dgram_reset_rcv_timeout(BIO *b)-
234{-
235#if defined(SO_RCVTIMEO)-
236 bio_dgram_data *data = (bio_dgram_data *)b->ptr;-
237-
238 /* Is a timer active? */-
239 if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) {
data->next_timeout.tv_sec > 0Description
TRUEnever evaluated
FALSEnever evaluated
data->next_timeout.tv_usec > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
240 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
241 &(data->socket_timeout), sizeof(struct timeval)) < 0) {
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
242 perror("setsockopt");-
243 }
never executed: end of block
0
244 }
never executed: end of block
0
245#endif-
246}
never executed: end of block
0
247-
248static int-
249dgram_read(BIO *b, char *out, int outl)-
250{-
251 int ret = 0;-
252 bio_dgram_data *data = (bio_dgram_data *)b->ptr;-
253-
254 struct {-
255 socklen_t len;-
256 union {-
257 struct sockaddr sa;-
258 struct sockaddr_in sa_in;-
259 struct sockaddr_in6 sa_in6;-
260 } peer;-
261 } sa;-
262-
263 sa.len = sizeof(sa.peer);-
264-
265 if (out != NULL) {
out != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
266 errno = 0;-
267 memset(&sa.peer, 0, sizeof(sa.peer));-
268 dgram_adjust_rcv_timeout(b);-
269 ret = recvfrom(b->num, out, outl, 0, &sa.peer.sa, &sa.len);-
270-
271 if (! data->connected && ret >= 0)
! data->connectedDescription
TRUEnever evaluated
FALSEnever evaluated
ret >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
272 BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &sa.peer);
never executed: BIO_ctrl(b, 44, 0, &sa.peer);
0
273-
274 BIO_clear_retry_flags(b);-
275 if (ret < 0) {
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
276 if (BIO_dgram_should_retry(ret)) {
BIO_dgram_should_retry(ret)Description
TRUEnever evaluated
FALSEnever evaluated
0
277 BIO_set_retry_read(b);-
278 data->_errno = errno;-
279 }
never executed: end of block
0
280 }
never executed: end of block
0
281-
282 dgram_reset_rcv_timeout(b);-
283 }
never executed: end of block
0
284 return (ret);
never executed: return (ret);
0
285}-
286-
287static int-
288dgram_write(BIO *b, const char *in, int inl)-
289{-
290 int ret;-
291 bio_dgram_data *data = (bio_dgram_data *)b->ptr;-
292 errno = 0;-
293-
294 if (data->connected)
data->connectedDescription
TRUEnever evaluated
FALSEnever evaluated
0
295 ret = write(b->num, in, inl);
never executed: ret = write(b->num, in, inl);
0
296 else {-
297 int peerlen = sizeof(data->peer);-
298-
299 if (data->peer.sa.sa_family == AF_INET)
data->peer.sa.sa_family == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
300 peerlen = sizeof(data->peer.sa_in);
never executed: peerlen = sizeof(data->peer.sa_in);
0
301 else if (data->peer.sa.sa_family == AF_INET6)
data->peer.sa.sa_family == 10Description
TRUEnever evaluated
FALSEnever evaluated
0
302 peerlen = sizeof(data->peer.sa_in6);
never executed: peerlen = sizeof(data->peer.sa_in6);
0
303 ret = sendto(b->num, in, inl, 0, &data->peer.sa, peerlen);-
304 }
never executed: end of block
0
305-
306 BIO_clear_retry_flags(b);-
307 if (ret <= 0) {
ret <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
308 if (BIO_dgram_should_retry(ret)) {
BIO_dgram_should_retry(ret)Description
TRUEnever evaluated
FALSEnever evaluated
0
309 BIO_set_retry_write(b);-
310-
311 data->_errno = errno;-
312 /*-
313 * higher layers are responsible for querying MTU,-
314 * if necessary-
315 */-
316 }
never executed: end of block
0
317 }
never executed: end of block
0
318 return (ret);
never executed: return (ret);
0
319}-
320-
321static long-
322dgram_ctrl(BIO *b, int cmd, long num, void *ptr)-
323{-
324 long ret = 1;-
325 int *ip;-
326 struct sockaddr *to = NULL;-
327 bio_dgram_data *data = NULL;-
328#if (defined(IP_MTU_DISCOVER) || defined(IP_MTU))-
329 int sockopt_val = 0;-
330 socklen_t sockopt_len; /* assume that system supporting IP_MTU is-
331 * modern enough to define socklen_t */-
332 socklen_t addr_len;-
333 union {-
334 struct sockaddr sa;-
335 struct sockaddr_in s4;-
336 struct sockaddr_in6 s6;-
337 } addr;-
338#endif-
339-
340 data = (bio_dgram_data *)b->ptr;-
341-
342 switch (cmd) {-
343 case BIO_CTRL_RESET:
never executed: case 1:
0
344 num = 0;-
345 case BIO_C_FILE_SEEK:
code before this statement never executed: case 128:
never executed: case 128:
0
346 ret = 0;-
347 break;
never executed: break;
0
348 case BIO_C_FILE_TELL:
never executed: case 133:
0
349 case BIO_CTRL_INFO:
never executed: case 3:
0
350 ret = 0;-
351 break;
never executed: break;
0
352 case BIO_C_SET_FD:
never executed: case 104:
0
353 dgram_clear(b);-
354 b->num= *((int *)ptr);-
355 b->shutdown = (int)num;-
356 b->init = 1;-
357 break;
never executed: break;
0
358 case BIO_C_GET_FD:
never executed: case 105:
0
359 if (b->init) {
b->initDescription
TRUEnever evaluated
FALSEnever evaluated
0
360 ip = (int *)ptr;-
361 if (ip != NULL)
ip != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
362 *ip = b->num;
never executed: *ip = b->num;
0
363 ret = b->num;-
364 } else
never executed: end of block
0
365 ret = -1;
never executed: ret = -1;
0
366 break;
never executed: break;
0
367 case BIO_CTRL_GET_CLOSE:
never executed: case 8:
0
368 ret = b->shutdown;-
369 break;
never executed: break;
0
370 case BIO_CTRL_SET_CLOSE:
never executed: case 9:
0
371 b->shutdown = (int)num;-
372 break;
never executed: break;
0
373 case BIO_CTRL_PENDING:
never executed: case 10:
0
374 case BIO_CTRL_WPENDING:
never executed: case 13:
0
375 ret = 0;-
376 break;
never executed: break;
0
377 case BIO_CTRL_DUP:
never executed: case 12:
0
378 case BIO_CTRL_FLUSH:
never executed: case 11:
0
379 ret = 1;-
380 break;
never executed: break;
0
381 case BIO_CTRL_DGRAM_CONNECT:
never executed: case 31:
0
382 to = (struct sockaddr *)ptr;-
383 switch (to->sa_family) {-
384 case AF_INET:
never executed: case 2 :
0
385 memcpy(&data->peer, to, sizeof(data->peer.sa_in));-
386 break;
never executed: break;
0
387 case AF_INET6:
never executed: case 10 :
0
388 memcpy(&data->peer, to, sizeof(data->peer.sa_in6));-
389 break;
never executed: break;
0
390 default:
never executed: default:
0
391 memcpy(&data->peer, to, sizeof(data->peer.sa));-
392 break;
never executed: break;
0
393 }-
394 break;
never executed: break;
0
395 /* (Linux)kernel sets DF bit on outgoing IP packets */-
396 case BIO_CTRL_DGRAM_MTU_DISCOVER:
never executed: case 39:
0
397#if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)-
398 addr_len = (socklen_t)sizeof(addr);-
399 memset((void *)&addr, 0, sizeof(addr));-
400 if (getsockname(b->num, &addr.sa, &addr_len) < 0) {
getsockname(b-...&addr_len) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
401 ret = 0;-
402 break;
never executed: break;
0
403 }-
404 switch (addr.sa.sa_family) {-
405 case AF_INET:
never executed: case 2 :
0
406 sockopt_val = IP_PMTUDISC_DO;-
407 ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER,-
408 &sockopt_val, sizeof(sockopt_val));-
409 if (ret < 0)
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
410 perror("setsockopt");
never executed: perror("setsockopt");
0
411 break;
never executed: break;
0
412#if defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO)-
413 case AF_INET6:
never executed: case 10 :
0
414 sockopt_val = IPV6_PMTUDISC_DO;-
415 ret = setsockopt(b->num, IPPROTO_IPV6,-
416 IPV6_MTU_DISCOVER, &sockopt_val,-
417 sizeof(sockopt_val));-
418 if (ret < 0)
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
419 perror("setsockopt");
never executed: perror("setsockopt");
0
420 break;
never executed: break;
0
421#endif-
422 default:
never executed: default:
0
423 ret = -1;-
424 break;
never executed: break;
0
425 }-
426#else-
427 ret = -1;-
428#endif-
429 break;
never executed: break;
0
430 case BIO_CTRL_DGRAM_QUERY_MTU:
never executed: case 40:
0
431#if defined(IP_MTU)-
432 addr_len = (socklen_t)sizeof(addr);-
433 memset((void *)&addr, 0, sizeof(addr));-
434 if (getsockname(b->num, &addr.sa, &addr_len) < 0) {
getsockname(b-...&addr_len) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
435 ret = 0;-
436 break;
never executed: break;
0
437 }-
438 sockopt_len = sizeof(sockopt_val);-
439 switch (addr.sa.sa_family) {-
440 case AF_INET:
never executed: case 2 :
0
441 ret = getsockopt(b->num, IPPROTO_IP, IP_MTU,-
442 &sockopt_val, &sockopt_len);-
443 if (ret < 0 || sockopt_val < 0) {
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
sockopt_val < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
444 ret = 0;-
445 } else {
never executed: end of block
0
446 /* we assume that the transport protocol is UDP and no-
447 * IP options are used.-
448 */-
449 data->mtu = sockopt_val - 8 - 20;-
450 ret = data->mtu;-
451 }
never executed: end of block
0
452 break;
never executed: break;
0
453#if defined(IPV6_MTU)-
454 case AF_INET6:
never executed: case 10 :
0
455 ret = getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU,-
456 &sockopt_val, &sockopt_len);-
457 if (ret < 0 || sockopt_val < 0) {
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
sockopt_val < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
458 ret = 0;-
459 } else {
never executed: end of block
0
460 /* we assume that the transport protocol is UDP and no-
461 * IPV6 options are used.-
462 */-
463 data->mtu = sockopt_val - 8 - 40;-
464 ret = data->mtu;-
465 }
never executed: end of block
0
466 break;
never executed: break;
0
467#endif-
468default
never executed: default:
:
never executed: default:
0
469 ret = 0;-
470 break;
never executed: break;
0
471 }-
472#else-
473 ret = 0;-
474#endif-
475 break;
never executed: break;
0
476 case BIO_CTRL_DGRAM_GET_FALLBACK_MTU:
never executed: case 47:
0
477 switch (data->peer.sa.sa_family) {-
478 case AF_INET:
never executed: case 2 :
0
479 ret = 576 - 20 - 8;-
480 break;
never executed: break;
0
481 case AF_INET6:
never executed: case 10 :
0
482#ifdef IN6_IS_ADDR_V4MAPPED-
483 if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr))
(__extension__... (0xffff); }))Description
TRUEnever evaluated
FALSEnever evaluated
0
484 ret = 576 - 20 - 8;
never executed: ret = 576 - 20 - 8;
0
485 else-
486#endif-
487 ret = 1280 - 40 - 8;
never executed: ret = 1280 - 40 - 8;
0
488 break;
never executed: break;
0
489 default:
never executed: default:
0
490 ret = 576 - 20 - 8;-
491 break;
never executed: break;
0
492 }-
493 break;
never executed: break;
0
494 case BIO_CTRL_DGRAM_GET_MTU:
never executed: case 41:
0
495 return data->mtu;
never executed: return data->mtu;
0
496 break;
dead code: break;
-
497 case BIO_CTRL_DGRAM_SET_MTU:
never executed: case 42:
0
498 data->mtu = num;-
499 ret = num;-
500 break;
never executed: break;
0
501 case BIO_CTRL_DGRAM_SET_CONNECTED:
never executed: case 32:
0
502 to = (struct sockaddr *)ptr;-
503-
504 if (to != NULL) {
to != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
505 data->connected = 1;-
506 switch (to->sa_family) {-
507 case AF_INET:
never executed: case 2 :
0
508 memcpy(&data->peer, to, sizeof(data->peer.sa_in));-
509 break;
never executed: break;
0
510 case AF_INET6:
never executed: case 10 :
0
511 memcpy(&data->peer, to, sizeof(data->peer.sa_in6));-
512 break;
never executed: break;
0
513 default:
never executed: default:
0
514 memcpy(&data->peer, to, sizeof(data->peer.sa));-
515 break;
never executed: break;
0
516 }-
517 } else {-
518 data->connected = 0;-
519 memset(&(data->peer), 0, sizeof(data->peer));-
520 }
never executed: end of block
0
521 break;
never executed: break;
0
522 case BIO_CTRL_DGRAM_GET_PEER:
never executed: case 46:
0
523 switch (data->peer.sa.sa_family) {-
524 case AF_INET:
never executed: case 2 :
0
525 ret = sizeof(data->peer.sa_in);-
526 break;
never executed: break;
0
527 case AF_INET6:
never executed: case 10 :
0
528 ret = sizeof(data->peer.sa_in6);-
529 break;
never executed: break;
0
530 default:
never executed: default:
0
531 ret = sizeof(data->peer.sa);-
532 break;
never executed: break;
0
533 }-
534 if (num == 0 || num > ret)
num == 0Description
TRUEnever evaluated
FALSEnever evaluated
num > retDescription
TRUEnever evaluated
FALSEnever evaluated
0
535 num = ret;
never executed: num = ret;
0
536 memcpy(ptr, &data->peer, (ret = num));-
537 break;
never executed: break;
0
538 case BIO_CTRL_DGRAM_SET_PEER:
never executed: case 44:
0
539 to = (struct sockaddr *) ptr;-
540 switch (to->sa_family) {-
541 case AF_INET:
never executed: case 2 :
0
542 memcpy(&data->peer, to, sizeof(data->peer.sa_in));-
543 break;
never executed: break;
0
544 case AF_INET6:
never executed: case 10 :
0
545 memcpy(&data->peer, to, sizeof(data->peer.sa_in6));-
546 break;
never executed: break;
0
547 default:
never executed: default:
0
548 memcpy(&data->peer, to, sizeof(data->peer.sa));-
549 break;
never executed: break;
0
550 }-
551 break;
never executed: break;
0
552 case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT:
never executed: case 45:
0
553 memcpy(&(data->next_timeout), ptr, sizeof(struct timeval));-
554 break;
never executed: break;
0
555#if defined(SO_RCVTIMEO)-
556 case BIO_CTRL_DGRAM_SET_RECV_TIMEOUT:
never executed: case 33:
0
557 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, ptr,
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
558 sizeof(struct timeval)) < 0) {
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
559 perror("setsockopt");-
560 ret = -1;-
561 }
never executed: end of block
0
562 break;
never executed: break;
0
563 case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT:
never executed: case 34:
0
564 {-
565 socklen_t sz = sizeof(struct timeval);-
566 if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
getsockopt(b->... ptr, &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
567 ptr, &sz) < 0) {
getsockopt(b->... ptr, &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
568 perror("getsockopt");-
569 ret = -1;-
570 } else
never executed: end of block
0
571 ret = sz;
never executed: ret = sz;
0
572 }-
573 break;
never executed: break;
0
574#endif-
575#if defined(SO_SNDTIMEO)-
576 case BIO_CTRL_DGRAM_SET_SEND_TIMEOUT:
never executed: case 35:
0
577 if (setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, ptr,
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
578 sizeof(struct timeval)) < 0) {
setsockopt(b->... timeval)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
579 perror("setsockopt");-
580 ret = -1;-
581 }
never executed: end of block
0
582 break;
never executed: break;
0
583 case BIO_CTRL_DGRAM_GET_SEND_TIMEOUT:
never executed: case 36:
0
584 {-
585 socklen_t sz = sizeof(struct timeval);-
586 if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
getsockopt(b->... ptr, &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
587 ptr, &sz) < 0) {
getsockopt(b->... ptr, &sz) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
588 perror("getsockopt");-
589 ret = -1;-
590 } else
never executed: end of block
0
591 ret = sz;
never executed: ret = sz;
0
592 }-
593 break;
never executed: break;
0
594#endif-
595 case BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP:
never executed: case 38:
0
596 /* fall-through */-
597 case BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP:
never executed: case 37:
0
598 if (data->_errno == EAGAIN) {
data->_errno == 11Description
TRUEnever evaluated
FALSEnever evaluated
0
599 ret = 1;-
600 data->_errno = 0;-
601 } else
never executed: end of block
0
602 ret = 0;
never executed: ret = 0;
0
603 break;
never executed: break;
0
604#ifdef EMSGSIZE-
605 case BIO_CTRL_DGRAM_MTU_EXCEEDED:
never executed: case 43:
0
606 if (data->_errno == EMSGSIZE) {
data->_errno == 90Description
TRUEnever evaluated
FALSEnever evaluated
0
607 ret = 1;-
608 data->_errno = 0;-
609 } else
never executed: end of block
0
610 ret = 0;
never executed: ret = 0;
0
611 break;
never executed: break;
0
612#endif-
613 default:
never executed: default:
0
614 ret = 0;-
615 break;
never executed: break;
0
616 }-
617 return (ret);
never executed: return (ret);
0
618}-
619-
620static int-
621dgram_puts(BIO *bp, const char *str)-
622{-
623 int n, ret;-
624-
625 n = strlen(str);-
626 ret = dgram_write(bp, str, n);-
627 return (ret);
never executed: return (ret);
0
628}-
629-
630-
631static int-
632BIO_dgram_should_retry(int i)-
633{-
634 int err;-
635-
636 if ((i == 0) || (i == -1)) {
(i == 0)Description
TRUEnever evaluated
FALSEnever evaluated
(i == -1)Description
TRUEnever evaluated
FALSEnever evaluated
0
637 err = errno;-
638 return (BIO_dgram_non_fatal_error(err));
never executed: return (BIO_dgram_non_fatal_error(err));
0
639 }-
640 return (0);
never executed: return (0);
0
641}-
642-
643int-
644BIO_dgram_non_fatal_error(int err)-
645{-
646 switch (err) {-
647 case EINTR:
never executed: case 4 :
0
648 case EAGAIN:
never executed: case 11 :
0
649 case EINPROGRESS:
never executed: case 115 :
0
650 case EALREADY:
never executed: case 114 :
0
651 return (1);
never executed: return (1);
0
652 default:
never executed: default:
0
653 break;
never executed: break;
0
654 }-
655 return (0);
never executed: return (0);
0
656}-
657-
658#endif-
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.2.2