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Diffstat (limited to 'src/lib/libcrypto/bio/b_sock.c')
-rw-r--r--src/lib/libcrypto/bio/b_sock.c717
1 files changed, 0 insertions, 717 deletions
diff --git a/src/lib/libcrypto/bio/b_sock.c b/src/lib/libcrypto/bio/b_sock.c
deleted file mode 100644
index 6409f98f57..0000000000
--- a/src/lib/libcrypto/bio/b_sock.c
+++ /dev/null
@@ -1,717 +0,0 @@
1/* crypto/bio/b_sock.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#ifndef NO_SOCK
60
61#include <stdio.h>
62#include <stdlib.h>
63#include <errno.h>
64#define USE_SOCKETS
65#include "cryptlib.h"
66#include <openssl/bio.h>
67
68#ifdef WIN16
69#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
70#else
71#define SOCKET_PROTOCOL IPPROTO_TCP
72#endif
73
74#ifdef SO_MAXCONN
75#define MAX_LISTEN SOMAXCONN
76#elif defined(SO_MAXCONN)
77#define MAX_LISTEN SO_MAXCONN
78#else
79#define MAX_LISTEN 32
80#endif
81
82#ifdef WINDOWS
83static int wsa_init_done=0;
84#endif
85
86static unsigned long BIO_ghbn_hits=0L;
87static unsigned long BIO_ghbn_miss=0L;
88
89#define GHBN_NUM 4
90static struct ghbn_cache_st
91 {
92 char name[129];
93 struct hostent *ent;
94 unsigned long order;
95 } ghbn_cache[GHBN_NUM];
96
97static int get_ip(const char *str,unsigned char *ip);
98static void ghbn_free(struct hostent *a);
99static struct hostent *ghbn_dup(struct hostent *a);
100int BIO_get_host_ip(const char *str, unsigned char *ip)
101 {
102 int i;
103 int err = 1;
104 int locked = 0;
105 struct hostent *he;
106
107 i=get_ip(str,ip);
108 if (i > 0) return(1);
109 if (i < 0)
110 {
111 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS);
112 goto err;
113 }
114
115 /* do a gethostbyname */
116 if (!BIO_sock_init())
117 return(0); /* don't generate another error code here */
118
119 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
120 locked = 1;
121 he=BIO_gethostbyname(str);
122 if (he == NULL)
123 {
124 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP);
125 goto err;
126 }
127
128 /* cast to short because of win16 winsock definition */
129 if ((short)he->h_addrtype != AF_INET)
130 {
131 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
132 goto err;
133 }
134 for (i=0; i<4; i++)
135 ip[i]=he->h_addr_list[0][i];
136 err = 0;
137
138 err:
139 if (locked)
140 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
141 if (err)
142 {
143 ERR_add_error_data(2,"host=",str);
144 return 0;
145 }
146 else
147 return 1;
148 }
149
150int BIO_get_port(const char *str, unsigned short *port_ptr)
151 {
152 int i;
153 struct servent *s;
154
155 if (str == NULL)
156 {
157 BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED);
158 return(0);
159 }
160 i=atoi(str);
161 if (i != 0)
162 *port_ptr=(unsigned short)i;
163 else
164 {
165 CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
166 /* Note: under VMS with SOCKETSHR, it seems like the first
167 * parameter is 'char *', instead of 'const char *'
168 */
169 s=getservbyname(
170#ifndef CONST_STRICT
171 (char *)
172#endif
173 str,"tcp");
174 if(s != NULL)
175 *port_ptr=ntohs((unsigned short)s->s_port);
176 CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
177 if(s == NULL)
178 {
179 if (strcmp(str,"http") == 0)
180 *port_ptr=80;
181 else if (strcmp(str,"telnet") == 0)
182 *port_ptr=23;
183 else if (strcmp(str,"socks") == 0)
184 *port_ptr=1080;
185 else if (strcmp(str,"https") == 0)
186 *port_ptr=443;
187 else if (strcmp(str,"ssl") == 0)
188 *port_ptr=443;
189 else if (strcmp(str,"ftp") == 0)
190 *port_ptr=21;
191 else if (strcmp(str,"gopher") == 0)
192 *port_ptr=70;
193#if 0
194 else if (strcmp(str,"wais") == 0)
195 *port_ptr=21;
196#endif
197 else
198 {
199 SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error());
200 ERR_add_error_data(3,"service='",str,"'");
201 return(0);
202 }
203 }
204 }
205 return(1);
206 }
207
208int BIO_sock_error(int sock)
209 {
210 int j,i;
211 int size;
212
213 size=sizeof(int);
214 /* Note: under Windows the third parameter is of type (char *)
215 * whereas under other systems it is (void *) if you don't have
216 * a cast it will choke the compiler: if you do have a cast then
217 * you can either go for (char *) or (void *).
218 */
219 i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size);
220 if (i < 0)
221 return(1);
222 else
223 return(j);
224 }
225
226long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
227 {
228 int i;
229 char **p;
230
231 switch (cmd)
232 {
233 case BIO_GHBN_CTRL_HITS:
234 return(BIO_ghbn_hits);
235 /* break; */
236 case BIO_GHBN_CTRL_MISSES:
237 return(BIO_ghbn_miss);
238 /* break; */
239 case BIO_GHBN_CTRL_CACHE_SIZE:
240 return(GHBN_NUM);
241 /* break; */
242 case BIO_GHBN_CTRL_GET_ENTRY:
243 if ((iarg >= 0) && (iarg <GHBN_NUM) &&
244 (ghbn_cache[iarg].order > 0))
245 {
246 p=(char **)parg;
247 if (p == NULL) return(0);
248 *p=ghbn_cache[iarg].name;
249 ghbn_cache[iarg].name[128]='\0';
250 return(1);
251 }
252 return(0);
253 /* break; */
254 case BIO_GHBN_CTRL_FLUSH:
255 for (i=0; i<GHBN_NUM; i++)
256 ghbn_cache[i].order=0;
257 break;
258 default:
259 return(0);
260 }
261 return(1);
262 }
263
264static struct hostent *ghbn_dup(struct hostent *a)
265 {
266 struct hostent *ret;
267 int i,j;
268
269 MemCheck_off();
270 ret=(struct hostent *)Malloc(sizeof(struct hostent));
271 if (ret == NULL) return(NULL);
272 memset(ret,0,sizeof(struct hostent));
273
274 for (i=0; a->h_aliases[i] != NULL; i++)
275 ;
276 i++;
277 ret->h_aliases = (char **)Malloc(i*sizeof(char *));
278 if (ret->h_aliases == NULL)
279 goto err;
280 memset(ret->h_aliases, 0, i*sizeof(char *));
281
282 for (i=0; a->h_addr_list[i] != NULL; i++)
283 ;
284 i++;
285 ret->h_addr_list=(char **)Malloc(i*sizeof(char *));
286 if (ret->h_addr_list == NULL)
287 goto err;
288 memset(ret->h_addr_list, 0, i*sizeof(char *));
289
290 j=strlen(a->h_name)+1;
291 if ((ret->h_name=Malloc(j)) == NULL) goto err;
292 memcpy((char *)ret->h_name,a->h_name,j);
293 for (i=0; a->h_aliases[i] != NULL; i++)
294 {
295 j=strlen(a->h_aliases[i])+1;
296 if ((ret->h_aliases[i]=Malloc(j)) == NULL) goto err;
297 memcpy(ret->h_aliases[i],a->h_aliases[i],j);
298 }
299 ret->h_length=a->h_length;
300 ret->h_addrtype=a->h_addrtype;
301 for (i=0; a->h_addr_list[i] != NULL; i++)
302 {
303 if ((ret->h_addr_list[i]=Malloc(a->h_length)) == NULL)
304 goto err;
305 memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length);
306 }
307 if (0)
308 {
309err:
310 if (ret != NULL)
311 ghbn_free(ret);
312 ret=NULL;
313 }
314 MemCheck_on();
315 return(ret);
316 }
317
318static void ghbn_free(struct hostent *a)
319 {
320 int i;
321
322 if(a == NULL)
323 return;
324
325 if (a->h_aliases != NULL)
326 {
327 for (i=0; a->h_aliases[i] != NULL; i++)
328 Free(a->h_aliases[i]);
329 Free(a->h_aliases);
330 }
331 if (a->h_addr_list != NULL)
332 {
333 for (i=0; a->h_addr_list[i] != NULL; i++)
334 Free(a->h_addr_list[i]);
335 Free(a->h_addr_list);
336 }
337 if (a->h_name != NULL) Free(a->h_name);
338 Free(a);
339 }
340
341struct hostent *BIO_gethostbyname(const char *name)
342 {
343 struct hostent *ret;
344 int i,lowi=0,j;
345 unsigned long low= (unsigned long)-1;
346
347/* return(gethostbyname(name)); */
348
349#if 0 /* It doesn't make sense to use locking here: The function interface
350 * is not thread-safe, because threads can never be sure when
351 * some other thread destroys the data they were given a pointer to.
352 */
353 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
354#endif
355 j=strlen(name);
356 if (j < 128)
357 {
358 for (i=0; i<GHBN_NUM; i++)
359 {
360 if (low > ghbn_cache[i].order)
361 {
362 low=ghbn_cache[i].order;
363 lowi=i;
364 }
365 if (ghbn_cache[i].order > 0)
366 {
367 if (strncmp(name,ghbn_cache[i].name,128) == 0)
368 break;
369 }
370 }
371 }
372 else
373 i=GHBN_NUM;
374
375 if (i == GHBN_NUM) /* no hit*/
376 {
377 BIO_ghbn_miss++;
378 /* Note: under VMS with SOCKETSHR, it seems like the first
379 * parameter is 'char *', instead of 'const char *'
380 */
381 ret=gethostbyname(
382#ifndef CONST_STRICT
383 (char *)
384#endif
385 name);
386
387 if (ret == NULL)
388 goto end;
389 if (j > 128) /* too big to cache */
390 {
391#if 0 /* If we were trying to make this function thread-safe (which
392 * is bound to fail), we'd have to give up in this case
393 * (or allocate more memory). */
394 ret = NULL;
395#endif
396 goto end;
397 }
398
399 /* else add to cache */
400 if (ghbn_cache[lowi].ent != NULL)
401 ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
402 ghbn_cache[lowi].name[0] = '\0';
403
404 if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL)
405 {
406 BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE);
407 goto end;
408 }
409 strncpy(ghbn_cache[lowi].name,name,128);
410 ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits;
411 }
412 else
413 {
414 BIO_ghbn_hits++;
415 ret= ghbn_cache[i].ent;
416 ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits;
417 }
418end:
419#if 0
420 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
421#endif
422 return(ret);
423 }
424
425int BIO_sock_init(void)
426 {
427#ifdef WINDOWS
428 static struct WSAData wsa_state;
429
430 if (!wsa_init_done)
431 {
432 int err;
433
434#ifdef SIGINT
435 signal(SIGINT,(void (*)(int))BIO_sock_cleanup);
436#endif
437 wsa_init_done=1;
438 memset(&wsa_state,0,sizeof(wsa_state));
439 if (WSAStartup(0x0101,&wsa_state)!=0)
440 {
441 err=WSAGetLastError();
442 SYSerr(SYS_F_WSASTARTUP,err);
443 BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
444 return(-1);
445 }
446 }
447#endif /* WINDOWS */
448 return(1);
449 }
450
451void BIO_sock_cleanup(void)
452 {
453#ifdef WINDOWS
454 if (wsa_init_done)
455 {
456 wsa_init_done=0;
457 WSACancelBlockingCall();
458 WSACleanup();
459 }
460#endif
461 }
462
463#if !defined(VMS) || __VMS_VER >= 70000000
464
465int BIO_socket_ioctl(int fd, long type, unsigned long *arg)
466 {
467 int i;
468
469 i=ioctlsocket(fd,type,arg);
470 if (i < 0)
471 SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
472 return(i);
473 }
474#endif /* __VMS_VER */
475
476/* The reason I have implemented this instead of using sscanf is because
477 * Visual C 1.52c gives an unresolved external when linking a DLL :-( */
478static int get_ip(const char *str, unsigned char ip[4])
479 {
480 unsigned int tmp[4];
481 int num=0,c,ok=0;
482
483 tmp[0]=tmp[1]=tmp[2]=tmp[3]=0;
484
485 for (;;)
486 {
487 c= *(str++);
488 if ((c >= '0') && (c <= '9'))
489 {
490 ok=1;
491 tmp[num]=tmp[num]*10+c-'0';
492 if (tmp[num] > 255) return(-1);
493 }
494 else if (c == '.')
495 {
496 if (!ok) return(-1);
497 if (num == 3) break;
498 num++;
499 ok=0;
500 }
501 else if ((num == 3) && ok)
502 break;
503 else
504 return(0);
505 }
506 ip[0]=tmp[0];
507 ip[1]=tmp[1];
508 ip[2]=tmp[2];
509 ip[3]=tmp[3];
510 return(1);
511 }
512
513int BIO_get_accept_socket(char *host, int bind_mode)
514 {
515 int ret=0;
516 struct sockaddr_in server,client;
517 int s= -1,cs;
518 unsigned char ip[4];
519 unsigned short port;
520 char *str,*e;
521 const char *h,*p;
522 unsigned long l;
523 int err_num;
524
525 if (!BIO_sock_init()) return(INVALID_SOCKET);
526
527 if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET);
528
529 h=p=NULL;
530 h=str;
531 for (e=str; *e; e++)
532 {
533 if (*e == ':')
534 {
535 p= &(e[1]);
536 *e='\0';
537 }
538 else if (*e == '/')
539 {
540 *e='\0';
541 break;
542 }
543 }
544
545 if (p == NULL)
546 {
547 p=h;
548 h="*";
549 }
550
551 if (!BIO_get_port(p,&port)) return(INVALID_SOCKET);
552
553 memset((char *)&server,0,sizeof(server));
554 server.sin_family=AF_INET;
555 server.sin_port=htons(port);
556
557 if (strcmp(h,"*") == 0)
558 server.sin_addr.s_addr=INADDR_ANY;
559 else
560 {
561 if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET);
562 l=(unsigned long)
563 ((unsigned long)ip[0]<<24L)|
564 ((unsigned long)ip[1]<<16L)|
565 ((unsigned long)ip[2]<< 8L)|
566 ((unsigned long)ip[3]);
567 server.sin_addr.s_addr=htonl(l);
568 }
569
570again:
571 s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
572 if (s == INVALID_SOCKET)
573 {
574 SYSerr(SYS_F_SOCKET,get_last_socket_error());
575 ERR_add_error_data(3,"port='",host,"'");
576 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET);
577 goto err;
578 }
579
580#ifdef SO_REUSEADDR
581 if (bind_mode == BIO_BIND_REUSEADDR)
582 {
583 int i=1;
584
585 ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i));
586 bind_mode=BIO_BIND_NORMAL;
587 }
588#endif
589 if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
590 {
591#ifdef SO_REUSEADDR
592 err_num=get_last_socket_error();
593 if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
594 (err_num == EADDRINUSE))
595 {
596 memcpy((char *)&client,(char *)&server,sizeof(server));
597 if (strcmp(h,"*") == 0)
598 client.sin_addr.s_addr=htonl(0x7F000001);
599 cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
600 if (cs != INVALID_SOCKET)
601 {
602 int ii;
603 ii=connect(cs,(struct sockaddr *)&client,
604 sizeof(client));
605 closesocket(cs);
606 if (ii == INVALID_SOCKET)
607 {
608 bind_mode=BIO_BIND_REUSEADDR;
609 closesocket(s);
610 goto again;
611 }
612 /* else error */
613 }
614 /* else error */
615 }
616#endif
617 SYSerr(SYS_F_BIND,err_num);
618 ERR_add_error_data(3,"port='",host,"'");
619 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
620 goto err;
621 }
622 if (listen(s,MAX_LISTEN) == -1)
623 {
624 SYSerr(SYS_F_BIND,get_last_socket_error());
625 ERR_add_error_data(3,"port='",host,"'");
626 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET);
627 goto err;
628 }
629 ret=1;
630err:
631 if (str != NULL) Free(str);
632 if ((ret == 0) && (s != INVALID_SOCKET))
633 {
634 closesocket(s);
635 s= INVALID_SOCKET;
636 }
637 return(s);
638 }
639
640int BIO_accept(int sock, char **addr)
641 {
642 int ret=INVALID_SOCKET;
643 static struct sockaddr_in from;
644 unsigned long l;
645 unsigned short port;
646 int len;
647 char *p;
648
649 memset((char *)&from,0,sizeof(from));
650 len=sizeof(from);
651 /* Note: under VMS with SOCKETSHR the fourth parameter is currently
652 * of type (int *) whereas under other systems it is (void *) if
653 * you don't have a cast it will choke the compiler: if you do
654 * have a cast then you can either go for (int *) or (void *).
655 */
656 ret=accept(sock,(struct sockaddr *)&from,(void *)&len);
657 if (ret == INVALID_SOCKET)
658 {
659 SYSerr(SYS_F_ACCEPT,get_last_socket_error());
660 BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR);
661 goto end;
662 }
663
664 if (addr == NULL) goto end;
665
666 l=ntohl(from.sin_addr.s_addr);
667 port=ntohs(from.sin_port);
668 if (*addr == NULL)
669 {
670 if ((p=Malloc(24)) == NULL)
671 {
672 BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
673 goto end;
674 }
675 *addr=p;
676 }
677 sprintf(*addr,"%d.%d.%d.%d:%d",
678 (unsigned char)(l>>24L)&0xff,
679 (unsigned char)(l>>16L)&0xff,
680 (unsigned char)(l>> 8L)&0xff,
681 (unsigned char)(l )&0xff,
682 port);
683end:
684 return(ret);
685 }
686
687int BIO_set_tcp_ndelay(int s, int on)
688 {
689 int ret=0;
690#if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
691 int opt;
692
693#ifdef SOL_TCP
694 opt=SOL_TCP;
695#else
696#ifdef IPPROTO_TCP
697 opt=IPPROTO_TCP;
698#endif
699#endif
700
701 ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on));
702#endif
703 return(ret == 0);
704 }
705#endif
706
707int BIO_socket_nbio(int s, int mode)
708 {
709 int ret= -1;
710 unsigned long l;
711
712 l=mode;
713#ifdef FIONBIO
714 ret=BIO_socket_ioctl(s,FIONBIO,&l);
715#endif
716 return(ret == 0);
717 }
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