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-rw-r--r--src/lib/libcrypto/bio/bss_dgram.c836
1 files changed, 0 insertions, 836 deletions
diff --git a/src/lib/libcrypto/bio/bss_dgram.c b/src/lib/libcrypto/bio/bss_dgram.c
deleted file mode 100644
index 71ebe987b6..0000000000
--- a/src/lib/libcrypto/bio/bss_dgram.c
+++ /dev/null
@@ -1,836 +0,0 @@
1/* crypto/bio/bio_dgram.c */
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
61#include <stdio.h>
62#include <errno.h>
63#define USE_SOCKETS
64#include "cryptlib.h"
65
66#include <openssl/bio.h>
67#ifndef OPENSSL_NO_DGRAM
68
69#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS)
70#include <sys/timeb.h>
71#endif
72
73#ifdef OPENSSL_SYS_LINUX
74#define IP_MTU 14 /* linux is lame */
75#endif
76
77#ifdef WATT32
78#define sock_write SockWrite /* Watt-32 uses same names */
79#define sock_read SockRead
80#define sock_puts SockPuts
81#endif
82
83static int dgram_write(BIO *h, const char *buf, int num);
84static int dgram_read(BIO *h, char *buf, int size);
85static int dgram_puts(BIO *h, const char *str);
86static long dgram_ctrl(BIO *h, int cmd, long arg1, void *arg2);
87static int dgram_new(BIO *h);
88static int dgram_free(BIO *data);
89static int dgram_clear(BIO *bio);
90
91static int BIO_dgram_should_retry(int s);
92
93static void get_current_time(struct timeval *t);
94
95static BIO_METHOD methods_dgramp=
96 {
97 BIO_TYPE_DGRAM,
98 "datagram socket",
99 dgram_write,
100 dgram_read,
101 dgram_puts,
102 NULL, /* dgram_gets, */
103 dgram_ctrl,
104 dgram_new,
105 dgram_free,
106 NULL,
107 };
108
109typedef struct bio_dgram_data_st
110 {
111 union {
112 struct sockaddr sa;
113 struct sockaddr_in sa_in;
114#if OPENSSL_USE_IPV6
115 struct sockaddr_in6 sa_in6;
116#endif
117 } peer;
118 unsigned int connected;
119 unsigned int _errno;
120 unsigned int mtu;
121 struct timeval next_timeout;
122 struct timeval socket_timeout;
123 } bio_dgram_data;
124
125BIO_METHOD *BIO_s_datagram(void)
126 {
127 return(&methods_dgramp);
128 }
129
130BIO *BIO_new_dgram(int fd, int close_flag)
131 {
132 BIO *ret;
133
134 ret=BIO_new(BIO_s_datagram());
135 if (ret == NULL) return(NULL);
136 BIO_set_fd(ret,fd,close_flag);
137 return(ret);
138 }
139
140static int dgram_new(BIO *bi)
141 {
142 bio_dgram_data *data = NULL;
143
144 bi->init=0;
145 bi->num=0;
146 data = OPENSSL_malloc(sizeof(bio_dgram_data));
147 if (data == NULL)
148 return 0;
149 memset(data, 0x00, sizeof(bio_dgram_data));
150 bi->ptr = data;
151
152 bi->flags=0;
153 return(1);
154 }
155
156static int dgram_free(BIO *a)
157 {
158 bio_dgram_data *data;
159
160 if (a == NULL) return(0);
161 if ( ! dgram_clear(a))
162 return 0;
163
164 data = (bio_dgram_data *)a->ptr;
165 if(data != NULL) OPENSSL_free(data);
166
167 return(1);
168 }
169
170static int dgram_clear(BIO *a)
171 {
172 if (a == NULL) return(0);
173 if (a->shutdown)
174 {
175 if (a->init)
176 {
177 SHUTDOWN2(a->num);
178 }
179 a->init=0;
180 a->flags=0;
181 }
182 return(1);
183 }
184
185static void dgram_adjust_rcv_timeout(BIO *b)
186 {
187#if defined(SO_RCVTIMEO)
188 bio_dgram_data *data = (bio_dgram_data *)b->ptr;
189 int sz = sizeof(int);
190
191 /* Is a timer active? */
192 if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
193 {
194 struct timeval timenow, timeleft;
195
196 /* Read current socket timeout */
197#ifdef OPENSSL_SYS_WINDOWS
198 int timeout;
199 if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
200 (void*)&timeout, &sz) < 0)
201 { perror("getsockopt"); }
202 else
203 {
204 data->socket_timeout.tv_sec = timeout / 1000;
205 data->socket_timeout.tv_usec = (timeout % 1000) * 1000;
206 }
207#else
208 if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
209 &(data->socket_timeout), (void *)&sz) < 0)
210 { perror("getsockopt"); }
211#endif
212
213 /* Get current time */
214 get_current_time(&timenow);
215
216 /* Calculate time left until timer expires */
217 memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval));
218 timeleft.tv_sec -= timenow.tv_sec;
219 timeleft.tv_usec -= timenow.tv_usec;
220 if (timeleft.tv_usec < 0)
221 {
222 timeleft.tv_sec--;
223 timeleft.tv_usec += 1000000;
224 }
225
226 if (timeleft.tv_sec < 0)
227 {
228 timeleft.tv_sec = 0;
229 timeleft.tv_usec = 1;
230 }
231
232 /* Adjust socket timeout if next handhake message timer
233 * will expire earlier.
234 */
235 if ((data->socket_timeout.tv_sec == 0 && data->socket_timeout.tv_usec == 0) ||
236 (data->socket_timeout.tv_sec > timeleft.tv_sec) ||
237 (data->socket_timeout.tv_sec == timeleft.tv_sec &&
238 data->socket_timeout.tv_usec >= timeleft.tv_usec))
239 {
240#ifdef OPENSSL_SYS_WINDOWS
241 timeout = timeleft.tv_sec * 1000 + timeleft.tv_usec / 1000;
242 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
243 (void*)&timeout, sizeof(timeout)) < 0)
244 { perror("setsockopt"); }
245#else
246 if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &timeleft,
247 sizeof(struct timeval)) < 0)
248 { perror("setsockopt"); }
249#endif
250 }
251 }
252#endif
253 }
254
255static void dgram_reset_rcv_timeout(BIO *b)
256 {
257#if defined(SO_RCVTIMEO)
258 bio_dgram_data *data = (bio_dgram_data *)b->ptr;
259
260 /* Is a timer active? */
261 if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
262 {
263#ifdef OPENSSL_SYS_WINDOWS
264 int timeout = data->socket_timeout.tv_sec * 1000 +
265 data->socket_timeout.tv_usec / 1000;
266 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
267 (void*)&timeout, sizeof(timeout)) < 0)
268 { perror("setsockopt"); }
269#else
270 if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &(data->socket_timeout),
271 sizeof(struct timeval)) < 0)
272 { perror("setsockopt"); }
273#endif
274 }
275#endif
276 }
277
278static int dgram_read(BIO *b, char *out, int outl)
279 {
280 int ret=0;
281 bio_dgram_data *data = (bio_dgram_data *)b->ptr;
282
283 struct {
284 /*
285 * See commentary in b_sock.c. <appro>
286 */
287 union { size_t s; int i; } len;
288 union {
289 struct sockaddr sa;
290 struct sockaddr_in sa_in;
291#if OPENSSL_USE_IPV6
292 struct sockaddr_in6 sa_in6;
293#endif
294 } peer;
295 } sa;
296
297 sa.len.s=0;
298 sa.len.i=sizeof(sa.peer);
299
300 if (out != NULL)
301 {
302 clear_socket_error();
303 memset(&sa.peer, 0x00, sizeof(sa.peer));
304 dgram_adjust_rcv_timeout(b);
305 ret=recvfrom(b->num,out,outl,0,&sa.peer.sa,(void *)&sa.len);
306 if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0)
307 {
308 OPENSSL_assert(sa.len.s<=sizeof(sa.peer));
309 sa.len.i = (int)sa.len.s;
310 }
311
312 if ( ! data->connected && ret >= 0)
313 BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &sa.peer);
314
315 BIO_clear_retry_flags(b);
316 if (ret < 0)
317 {
318 if (BIO_dgram_should_retry(ret))
319 {
320 BIO_set_retry_read(b);
321 data->_errno = get_last_socket_error();
322 }
323 }
324
325 dgram_reset_rcv_timeout(b);
326 }
327 return(ret);
328 }
329
330static int dgram_write(BIO *b, const char *in, int inl)
331 {
332 int ret;
333 bio_dgram_data *data = (bio_dgram_data *)b->ptr;
334 clear_socket_error();
335
336 if ( data->connected )
337 ret=writesocket(b->num,in,inl);
338 else
339 {
340 int peerlen = sizeof(data->peer);
341
342 if (data->peer.sa.sa_family == AF_INET)
343 peerlen = sizeof(data->peer.sa_in);
344#if OPENSSL_USE_IPV6
345 else if (data->peer.sa.sa_family == AF_INET6)
346 peerlen = sizeof(data->peer.sa_in6);
347#endif
348#if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK)
349 ret=sendto(b->num, (char *)in, inl, 0, &data->peer.sa, peerlen);
350#else
351 ret=sendto(b->num, in, inl, 0, &data->peer.sa, peerlen);
352#endif
353 }
354
355 BIO_clear_retry_flags(b);
356 if (ret <= 0)
357 {
358 if (BIO_dgram_should_retry(ret))
359 {
360 BIO_set_retry_write(b);
361 data->_errno = get_last_socket_error();
362
363#if 0 /* higher layers are responsible for querying MTU, if necessary */
364 if ( data->_errno == EMSGSIZE)
365 /* retrieve the new MTU */
366 BIO_ctrl(b, BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL);
367#endif
368 }
369 }
370 return(ret);
371 }
372
373static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
374 {
375 long ret=1;
376 int *ip;
377 struct sockaddr *to = NULL;
378 bio_dgram_data *data = NULL;
379#if defined(IP_MTU_DISCOVER) || defined(IP_MTU)
380 long sockopt_val = 0;
381 unsigned int sockopt_len = 0;
382#endif
383#ifdef OPENSSL_SYS_LINUX
384 socklen_t addr_len;
385 union {
386 struct sockaddr sa;
387 struct sockaddr_in s4;
388#if OPENSSL_USE_IPV6
389 struct sockaddr_in6 s6;
390#endif
391 } addr;
392#endif
393
394 data = (bio_dgram_data *)b->ptr;
395
396 switch (cmd)
397 {
398 case BIO_CTRL_RESET:
399 num=0;
400 case BIO_C_FILE_SEEK:
401 ret=0;
402 break;
403 case BIO_C_FILE_TELL:
404 case BIO_CTRL_INFO:
405 ret=0;
406 break;
407 case BIO_C_SET_FD:
408 dgram_clear(b);
409 b->num= *((int *)ptr);
410 b->shutdown=(int)num;
411 b->init=1;
412 break;
413 case BIO_C_GET_FD:
414 if (b->init)
415 {
416 ip=(int *)ptr;
417 if (ip != NULL) *ip=b->num;
418 ret=b->num;
419 }
420 else
421 ret= -1;
422 break;
423 case BIO_CTRL_GET_CLOSE:
424 ret=b->shutdown;
425 break;
426 case BIO_CTRL_SET_CLOSE:
427 b->shutdown=(int)num;
428 break;
429 case BIO_CTRL_PENDING:
430 case BIO_CTRL_WPENDING:
431 ret=0;
432 break;
433 case BIO_CTRL_DUP:
434 case BIO_CTRL_FLUSH:
435 ret=1;
436 break;
437 case BIO_CTRL_DGRAM_CONNECT:
438 to = (struct sockaddr *)ptr;
439#if 0
440 if (connect(b->num, to, sizeof(struct sockaddr)) < 0)
441 { perror("connect"); ret = 0; }
442 else
443 {
444#endif
445 switch (to->sa_family)
446 {
447 case AF_INET:
448 memcpy(&data->peer,to,sizeof(data->peer.sa_in));
449 break;
450#if OPENSSL_USE_IPV6
451 case AF_INET6:
452 memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
453 break;
454#endif
455 default:
456 memcpy(&data->peer,to,sizeof(data->peer.sa));
457 break;
458 }
459#if 0
460 }
461#endif
462 break;
463 /* (Linux)kernel sets DF bit on outgoing IP packets */
464 case BIO_CTRL_DGRAM_MTU_DISCOVER:
465#ifdef OPENSSL_SYS_LINUX
466 addr_len = (socklen_t)sizeof(addr);
467 memset((void *)&addr, 0, sizeof(addr));
468 if (getsockname(b->num, &addr.sa, &addr_len) < 0)
469 {
470 ret = 0;
471 break;
472 }
473 sockopt_len = sizeof(sockopt_val);
474 switch (addr.sa.sa_family)
475 {
476 case AF_INET:
477 sockopt_val = IP_PMTUDISC_DO;
478 if ((ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER,
479 &sockopt_val, sizeof(sockopt_val))) < 0)
480 perror("setsockopt");
481 break;
482#if OPENSSL_USE_IPV6 && defined(IPV6_MTU_DISCOVER)
483 case AF_INET6:
484 sockopt_val = IPV6_PMTUDISC_DO;
485 if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER,
486 &sockopt_val, sizeof(sockopt_val))) < 0)
487 perror("setsockopt");
488 break;
489#endif
490 default:
491 ret = -1;
492 break;
493 }
494 ret = -1;
495#else
496 break;
497#endif
498 case BIO_CTRL_DGRAM_QUERY_MTU:
499#ifdef OPENSSL_SYS_LINUX
500 addr_len = (socklen_t)sizeof(addr);
501 memset((void *)&addr, 0, sizeof(addr));
502 if (getsockname(b->num, &addr.sa, &addr_len) < 0)
503 {
504 ret = 0;
505 break;
506 }
507 sockopt_len = sizeof(sockopt_val);
508 switch (addr.sa.sa_family)
509 {
510 case AF_INET:
511 if ((ret = getsockopt(b->num, IPPROTO_IP, IP_MTU, (void *)&sockopt_val,
512 &sockopt_len)) < 0 || sockopt_val < 0)
513 {
514 ret = 0;
515 }
516 else
517 {
518 /* we assume that the transport protocol is UDP and no
519 * IP options are used.
520 */
521 data->mtu = sockopt_val - 8 - 20;
522 ret = data->mtu;
523 }
524 break;
525#if OPENSSL_USE_IPV6 && defined(IPV6_MTU)
526 case AF_INET6:
527 if ((ret = getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU, (void *)&sockopt_val,
528 &sockopt_len)) < 0 || sockopt_val < 0)
529 {
530 ret = 0;
531 }
532 else
533 {
534 /* we assume that the transport protocol is UDP and no
535 * IPV6 options are used.
536 */
537 data->mtu = sockopt_val - 8 - 40;
538 ret = data->mtu;
539 }
540 break;
541#endif
542 default:
543 ret = 0;
544 break;
545 }
546#else
547 ret = 0;
548#endif
549 break;
550 case BIO_CTRL_DGRAM_GET_MTU:
551 return data->mtu;
552 break;
553 case BIO_CTRL_DGRAM_SET_MTU:
554 data->mtu = num;
555 ret = num;
556 break;
557 case BIO_CTRL_DGRAM_SET_CONNECTED:
558 to = (struct sockaddr *)ptr;
559
560 if ( to != NULL)
561 {
562 data->connected = 1;
563 switch (to->sa_family)
564 {
565 case AF_INET:
566 memcpy(&data->peer,to,sizeof(data->peer.sa_in));
567 break;
568#if OPENSSL_USE_IPV6
569 case AF_INET6:
570 memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
571 break;
572#endif
573 default:
574 memcpy(&data->peer,to,sizeof(data->peer.sa));
575 break;
576 }
577 }
578 else
579 {
580 data->connected = 0;
581 memset(&(data->peer), 0x00, sizeof(data->peer));
582 }
583 break;
584 case BIO_CTRL_DGRAM_GET_PEER:
585 switch (data->peer.sa.sa_family)
586 {
587 case AF_INET:
588 ret=sizeof(data->peer.sa_in);
589 break;
590#if OPENSSL_USE_IPV6
591 case AF_INET6:
592 ret=sizeof(data->peer.sa_in6);
593 break;
594#endif
595 default:
596 ret=sizeof(data->peer.sa);
597 break;
598 }
599 if (num==0 || num>ret)
600 num=ret;
601 memcpy(ptr,&data->peer,(ret=num));
602 break;
603 case BIO_CTRL_DGRAM_SET_PEER:
604 to = (struct sockaddr *) ptr;
605 switch (to->sa_family)
606 {
607 case AF_INET:
608 memcpy(&data->peer,to,sizeof(data->peer.sa_in));
609 break;
610#if OPENSSL_USE_IPV6
611 case AF_INET6:
612 memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
613 break;
614#endif
615 default:
616 memcpy(&data->peer,to,sizeof(data->peer.sa));
617 break;
618 }
619 break;
620 case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT:
621 memcpy(&(data->next_timeout), ptr, sizeof(struct timeval));
622 break;
623#if defined(SO_RCVTIMEO)
624 case BIO_CTRL_DGRAM_SET_RECV_TIMEOUT:
625#ifdef OPENSSL_SYS_WINDOWS
626 {
627 struct timeval *tv = (struct timeval *)ptr;
628 int timeout = tv->tv_sec * 1000 + tv->tv_usec/1000;
629 if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
630 (void*)&timeout, sizeof(timeout)) < 0)
631 { perror("setsockopt"); ret = -1; }
632 }
633#else
634 if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, ptr,
635 sizeof(struct timeval)) < 0)
636 { perror("setsockopt"); ret = -1; }
637#endif
638 break;
639 case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT:
640#ifdef OPENSSL_SYS_WINDOWS
641 {
642 int timeout, sz = sizeof(timeout);
643 struct timeval *tv = (struct timeval *)ptr;
644 if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
645 (void*)&timeout, &sz) < 0)
646 { perror("getsockopt"); ret = -1; }
647 else
648 {
649 tv->tv_sec = timeout / 1000;
650 tv->tv_usec = (timeout % 1000) * 1000;
651 ret = sizeof(*tv);
652 }
653 }
654#else
655 if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
656 ptr, (void *)&ret) < 0)
657 { perror("getsockopt"); ret = -1; }
658#endif
659 break;
660#endif
661#if defined(SO_SNDTIMEO)
662 case BIO_CTRL_DGRAM_SET_SEND_TIMEOUT:
663#ifdef OPENSSL_SYS_WINDOWS
664 {
665 struct timeval *tv = (struct timeval *)ptr;
666 int timeout = tv->tv_sec * 1000 + tv->tv_usec/1000;
667 if (setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
668 (void*)&timeout, sizeof(timeout)) < 0)
669 { perror("setsockopt"); ret = -1; }
670 }
671#else
672 if ( setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, ptr,
673 sizeof(struct timeval)) < 0)
674 { perror("setsockopt"); ret = -1; }
675#endif
676 break;
677 case BIO_CTRL_DGRAM_GET_SEND_TIMEOUT:
678#ifdef OPENSSL_SYS_WINDOWS
679 {
680 int timeout, sz = sizeof(timeout);
681 struct timeval *tv = (struct timeval *)ptr;
682 if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
683 (void*)&timeout, &sz) < 0)
684 { perror("getsockopt"); ret = -1; }
685 else
686 {
687 tv->tv_sec = timeout / 1000;
688 tv->tv_usec = (timeout % 1000) * 1000;
689 ret = sizeof(*tv);
690 }
691 }
692#else
693 if ( getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
694 ptr, (void *)&ret) < 0)
695 { perror("getsockopt"); ret = -1; }
696#endif
697 break;
698#endif
699 case BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP:
700 /* fall-through */
701 case BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP:
702#ifdef OPENSSL_SYS_WINDOWS
703 if ( data->_errno == WSAETIMEDOUT)
704#else
705 if ( data->_errno == EAGAIN)
706#endif
707 {
708 ret = 1;
709 data->_errno = 0;
710 }
711 else
712 ret = 0;
713 break;
714#ifdef EMSGSIZE
715 case BIO_CTRL_DGRAM_MTU_EXCEEDED:
716 if ( data->_errno == EMSGSIZE)
717 {
718 ret = 1;
719 data->_errno = 0;
720 }
721 else
722 ret = 0;
723 break;
724#endif
725 default:
726 ret=0;
727 break;
728 }
729 return(ret);
730 }
731
732static int dgram_puts(BIO *bp, const char *str)
733 {
734 int n,ret;
735
736 n=strlen(str);
737 ret=dgram_write(bp,str,n);
738 return(ret);
739 }
740
741static int BIO_dgram_should_retry(int i)
742 {
743 int err;
744
745 if ((i == 0) || (i == -1))
746 {
747 err=get_last_socket_error();
748
749#if defined(OPENSSL_SYS_WINDOWS)
750 /* If the socket return value (i) is -1
751 * and err is unexpectedly 0 at this point,
752 * the error code was overwritten by
753 * another system call before this error
754 * handling is called.
755 */
756#endif
757
758 return(BIO_dgram_non_fatal_error(err));
759 }
760 return(0);
761 }
762
763int BIO_dgram_non_fatal_error(int err)
764 {
765 switch (err)
766 {
767#if defined(OPENSSL_SYS_WINDOWS)
768# if defined(WSAEWOULDBLOCK)
769 case WSAEWOULDBLOCK:
770# endif
771
772# if 0 /* This appears to always be an error */
773# if defined(WSAENOTCONN)
774 case WSAENOTCONN:
775# endif
776# endif
777#endif
778
779#ifdef EWOULDBLOCK
780# ifdef WSAEWOULDBLOCK
781# if WSAEWOULDBLOCK != EWOULDBLOCK
782 case EWOULDBLOCK:
783# endif
784# else
785 case EWOULDBLOCK:
786# endif
787#endif
788
789#ifdef EINTR
790 case EINTR:
791#endif
792
793#ifdef EAGAIN
794#if EWOULDBLOCK != EAGAIN
795 case EAGAIN:
796# endif
797#endif
798
799#ifdef EPROTO
800 case EPROTO:
801#endif
802
803#ifdef EINPROGRESS
804 case EINPROGRESS:
805#endif
806
807#ifdef EALREADY
808 case EALREADY:
809#endif
810
811 return(1);
812 /* break; */
813 default:
814 break;
815 }
816 return(0);
817 }
818
819static void get_current_time(struct timeval *t)
820 {
821#ifdef OPENSSL_SYS_WIN32
822 struct _timeb tb;
823 _ftime(&tb);
824 t->tv_sec = (long)tb.time;
825 t->tv_usec = (long)tb.millitm * 1000;
826#elif defined(OPENSSL_SYS_VMS)
827 struct timeb tb;
828 ftime(&tb);
829 t->tv_sec = (long)tb.time;
830 t->tv_usec = (long)tb.millitm * 1000;
831#else
832 gettimeofday(t, NULL);
833#endif
834 }
835
836#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-22 18:19:01 +0000