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authorcvs2svn <admin@example.com>1999-10-10 21:32:03 +0000
committercvs2svn <admin@example.com>1999-10-10 21:32:03 +0000
commit14e61fef302fbc25ab63e38bd35445637ca68139 (patch)
treedae5e50679bccd1ed8d7d4041fbb9f3d96bbc98c /src/lib/libcrypto/bio/b_sock.c
parent3ef9529fbf0c1f8f1c9da1172e92ad3370d5fcfe (diff)
downloadopenbsd-OPENBSD_2_6_BASE.tar.gz
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This commit was manufactured by cvs2git to create tag 'OPENBSD_2_6_BASE'.OPENBSD_2_6_BASE
Diffstat (limited to 'src/lib/libcrypto/bio/b_sock.c')
-rw-r--r--src/lib/libcrypto/bio/b_sock.c703
1 files changed, 0 insertions, 703 deletions
diff --git a/src/lib/libcrypto/bio/b_sock.c b/src/lib/libcrypto/bio/b_sock.c
deleted file mode 100644
index d29b29ff8b..0000000000
--- a/src/lib/libcrypto/bio/b_sock.c
+++ /dev/null
@@ -1,703 +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 s=getservbyname(str,"tcp");
167 if(s != NULL)
168 *port_ptr=ntohs((unsigned short)s->s_port);
169 CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
170 if(s == NULL)
171 {
172 if (strcmp(str,"http") == 0)
173 *port_ptr=80;
174 else if (strcmp(str,"telnet") == 0)
175 *port_ptr=23;
176 else if (strcmp(str,"socks") == 0)
177 *port_ptr=1080;
178 else if (strcmp(str,"https") == 0)
179 *port_ptr=443;
180 else if (strcmp(str,"ssl") == 0)
181 *port_ptr=443;
182 else if (strcmp(str,"ftp") == 0)
183 *port_ptr=21;
184 else if (strcmp(str,"gopher") == 0)
185 *port_ptr=70;
186#if 0
187 else if (strcmp(str,"wais") == 0)
188 *port_ptr=21;
189#endif
190 else
191 {
192 SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error());
193 ERR_add_error_data(3,"service='",str,"'");
194 return(0);
195 }
196 }
197 }
198 return(1);
199 }
200
201int BIO_sock_error(int sock)
202 {
203 int j,i;
204 int size;
205
206 size=sizeof(int);
207 /* Note: under Windows the third parameter is of type (char *)
208 * whereas under other systems it is (void *) if you don't have
209 * a cast it will choke the compiler: if you do have a cast then
210 * you can either go for (char *) or (void *).
211 */
212 i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size);
213 if (i < 0)
214 return(1);
215 else
216 return(j);
217 }
218
219long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
220 {
221 int i;
222 char **p;
223
224 switch (cmd)
225 {
226 case BIO_GHBN_CTRL_HITS:
227 return(BIO_ghbn_hits);
228 /* break; */
229 case BIO_GHBN_CTRL_MISSES:
230 return(BIO_ghbn_miss);
231 /* break; */
232 case BIO_GHBN_CTRL_CACHE_SIZE:
233 return(GHBN_NUM);
234 /* break; */
235 case BIO_GHBN_CTRL_GET_ENTRY:
236 if ((iarg >= 0) && (iarg <GHBN_NUM) &&
237 (ghbn_cache[iarg].order > 0))
238 {
239 p=(char **)parg;
240 if (p == NULL) return(0);
241 *p=ghbn_cache[iarg].name;
242 ghbn_cache[iarg].name[128]='\0';
243 return(1);
244 }
245 return(0);
246 /* break; */
247 case BIO_GHBN_CTRL_FLUSH:
248 for (i=0; i<GHBN_NUM; i++)
249 ghbn_cache[i].order=0;
250 break;
251 default:
252 return(0);
253 }
254 return(1);
255 }
256
257static struct hostent *ghbn_dup(struct hostent *a)
258 {
259 struct hostent *ret;
260 int i,j;
261
262 MemCheck_off();
263 ret=(struct hostent *)Malloc(sizeof(struct hostent));
264 if (ret == NULL) return(NULL);
265 memset(ret,0,sizeof(struct hostent));
266
267 for (i=0; a->h_aliases[i] != NULL; i++)
268 ;
269 i++;
270 ret->h_aliases = (char **)Malloc(i*sizeof(char *));
271 if (ret->h_aliases == NULL)
272 goto err;
273 memset(ret->h_aliases, 0, i*sizeof(char *));
274
275 for (i=0; a->h_addr_list[i] != NULL; i++)
276 ;
277 i++;
278 ret->h_addr_list=(char **)Malloc(i*sizeof(char *));
279 if (ret->h_addr_list == NULL)
280 goto err;
281 memset(ret->h_addr_list, 0, i*sizeof(char *));
282
283 j=strlen(a->h_name)+1;
284 if ((ret->h_name=Malloc(j)) == NULL) goto err;
285 memcpy((char *)ret->h_name,a->h_name,j+1);
286 for (i=0; a->h_aliases[i] != NULL; i++)
287 {
288 j=strlen(a->h_aliases[i])+1;
289 if ((ret->h_aliases[i]=Malloc(j)) == NULL) goto err;
290 memcpy(ret->h_aliases[i],a->h_aliases[i],j+1);
291 }
292 ret->h_length=a->h_length;
293 ret->h_addrtype=a->h_addrtype;
294 for (i=0; a->h_addr_list[i] != NULL; i++)
295 {
296 if ((ret->h_addr_list[i]=Malloc(a->h_length)) == NULL)
297 goto err;
298 memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length);
299 }
300 if (0)
301 {
302err:
303 if (ret != NULL)
304 ghbn_free(ret);
305 ret=NULL;
306 }
307 MemCheck_on();
308 return(ret);
309 }
310
311static void ghbn_free(struct hostent *a)
312 {
313 int i;
314
315 if(a == NULL)
316 return;
317
318 if (a->h_aliases != NULL)
319 {
320 for (i=0; a->h_aliases[i] != NULL; i++)
321 Free(a->h_aliases[i]);
322 Free(a->h_aliases);
323 }
324 if (a->h_addr_list != NULL)
325 {
326 for (i=0; a->h_addr_list[i] != NULL; i++)
327 Free(a->h_addr_list[i]);
328 Free(a->h_addr_list);
329 }
330 if (a->h_name != NULL) Free((char *)a->h_name);
331 Free(a);
332 }
333
334struct hostent *BIO_gethostbyname(const char *name)
335 {
336 struct hostent *ret;
337 int i,lowi=0,j;
338 unsigned long low= (unsigned long)-1;
339
340/* return(gethostbyname(name)); */
341
342#if 0 /* It doesn't make sense to use locking here: The function interface
343 * is not thread-safe, because threads can never be sure when
344 * some other thread destroys the data they were given a pointer to.
345 */
346 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
347#endif
348 j=strlen(name);
349 if (j < 128)
350 {
351 for (i=0; i<GHBN_NUM; i++)
352 {
353 if (low > ghbn_cache[i].order)
354 {
355 low=ghbn_cache[i].order;
356 lowi=i;
357 }
358 if (ghbn_cache[i].order > 0)
359 {
360 if (strncmp(name,ghbn_cache[i].name,128) == 0)
361 break;
362 }
363 }
364 }
365 else
366 i=GHBN_NUM;
367
368 if (i == GHBN_NUM) /* no hit*/
369 {
370 BIO_ghbn_miss++;
371 ret=gethostbyname(name);
372
373 if (ret == NULL)
374 goto end;
375 if (j > 128) /* too big to cache */
376 {
377#if 0 /* If we were trying to make this function thread-safe (which
378 * is bound to fail), we'd have to give up in this case
379 * (or allocate more memory). */
380 ret = NULL;
381#endif
382 goto end;
383 }
384
385 /* else add to cache */
386 if (ghbn_cache[lowi].ent != NULL)
387 ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
388 ghbn_cache[lowi].name[0] = '\0';
389
390 if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL)
391 {
392 BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE);
393 goto end;
394 }
395 strncpy(ghbn_cache[lowi].name,name,128);
396 ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits;
397 }
398 else
399 {
400 BIO_ghbn_hits++;
401 ret= ghbn_cache[i].ent;
402 ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits;
403 }
404end:
405#if 0
406 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
407#endif
408 return(ret);
409 }
410
411int BIO_sock_init(void)
412 {
413#ifdef WINDOWS
414 static struct WSAData wsa_state;
415
416 if (!wsa_init_done)
417 {
418 int err;
419
420#ifdef SIGINT
421 signal(SIGINT,(void (*)(int))BIO_sock_cleanup);
422#endif
423 wsa_init_done=1;
424 memset(&wsa_state,0,sizeof(wsa_state));
425 if (WSAStartup(0x0101,&wsa_state)!=0)
426 {
427 err=WSAGetLastError();
428 SYSerr(SYS_F_WSASTARTUP,err);
429 BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
430 return(-1);
431 }
432 }
433#endif /* WINDOWS */
434 return(1);
435 }
436
437void BIO_sock_cleanup(void)
438 {
439#ifdef WINDOWS
440 if (wsa_init_done)
441 {
442 wsa_init_done=0;
443 WSACancelBlockingCall();
444 WSACleanup();
445 }
446#endif
447 }
448
449#if !defined(VMS) || __VMS_VER >= 70000000
450
451int BIO_socket_ioctl(int fd, long type, unsigned long *arg)
452 {
453 int i;
454
455 i=ioctlsocket(fd,type,arg);
456 if (i < 0)
457 SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
458 return(i);
459 }
460#endif /* __VMS_VER */
461
462/* The reason I have implemented this instead of using sscanf is because
463 * Visual C 1.52c gives an unresolved external when linking a DLL :-( */
464static int get_ip(const char *str, unsigned char ip[4])
465 {
466 unsigned int tmp[4];
467 int num=0,c,ok=0;
468
469 tmp[0]=tmp[1]=tmp[2]=tmp[3]=0;
470
471 for (;;)
472 {
473 c= *(str++);
474 if ((c >= '0') && (c <= '9'))
475 {
476 ok=1;
477 tmp[num]=tmp[num]*10+c-'0';
478 if (tmp[num] > 255) return(-1);
479 }
480 else if (c == '.')
481 {
482 if (!ok) return(-1);
483 if (num == 3) break;
484 num++;
485 ok=0;
486 }
487 else if ((num == 3) && ok)
488 break;
489 else
490 return(0);
491 }
492 ip[0]=tmp[0];
493 ip[1]=tmp[1];
494 ip[2]=tmp[2];
495 ip[3]=tmp[3];
496 return(1);
497 }
498
499int BIO_get_accept_socket(char *host, int bind_mode)
500 {
501 int ret=0;
502 struct sockaddr_in server,client;
503 int s= -1,cs;
504 unsigned char ip[4];
505 unsigned short port;
506 char *str,*e;
507 const char *h,*p;
508 unsigned long l;
509 int err_num;
510
511 if (!BIO_sock_init()) return(INVALID_SOCKET);
512
513 if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET);
514
515 h=p=NULL;
516 h=str;
517 for (e=str; *e; e++)
518 {
519 if (*e == ':')
520 {
521 p= &(e[1]);
522 *e='\0';
523 }
524 else if (*e == '/')
525 {
526 *e='\0';
527 break;
528 }
529 }
530
531 if (p == NULL)
532 {
533 p=h;
534 h="*";
535 }
536
537 if (!BIO_get_port(p,&port)) return(INVALID_SOCKET);
538
539 memset((char *)&server,0,sizeof(server));
540 server.sin_family=AF_INET;
541 server.sin_port=htons(port);
542
543 if (strcmp(h,"*") == 0)
544 server.sin_addr.s_addr=INADDR_ANY;
545 else
546 {
547 if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET);
548 l=(unsigned long)
549 ((unsigned long)ip[0]<<24L)|
550 ((unsigned long)ip[1]<<16L)|
551 ((unsigned long)ip[2]<< 8L)|
552 ((unsigned long)ip[3]);
553 server.sin_addr.s_addr=htonl(l);
554 }
555
556again:
557 s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
558 if (s == INVALID_SOCKET)
559 {
560 SYSerr(SYS_F_SOCKET,get_last_socket_error());
561 ERR_add_error_data(3,"port='",host,"'");
562 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET);
563 goto err;
564 }
565
566#ifdef SO_REUSEADDR
567 if (bind_mode == BIO_BIND_REUSEADDR)
568 {
569 int i=1;
570
571 ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i));
572 bind_mode=BIO_BIND_NORMAL;
573 }
574#endif
575 if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
576 {
577#ifdef SO_REUSEADDR
578 err_num=get_last_socket_error();
579 if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
580 (err_num == EADDRINUSE))
581 {
582 memcpy((char *)&client,(char *)&server,sizeof(server));
583 if (strcmp(h,"*") == 0)
584 client.sin_addr.s_addr=htonl(0x7F000001);
585 cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
586 if (cs != INVALID_SOCKET)
587 {
588 int ii;
589 ii=connect(cs,(struct sockaddr *)&client,
590 sizeof(client));
591 closesocket(cs);
592 if (ii == INVALID_SOCKET)
593 {
594 bind_mode=BIO_BIND_REUSEADDR;
595 closesocket(s);
596 goto again;
597 }
598 /* else error */
599 }
600 /* else error */
601 }
602#endif
603 SYSerr(SYS_F_BIND,err_num);
604 ERR_add_error_data(3,"port='",host,"'");
605 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
606 goto err;
607 }
608 if (listen(s,MAX_LISTEN) == -1)
609 {
610 SYSerr(SYS_F_BIND,get_last_socket_error());
611 ERR_add_error_data(3,"port='",host,"'");
612 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET);
613 goto err;
614 }
615 ret=1;
616err:
617 if (str != NULL) Free(str);
618 if ((ret == 0) && (s != INVALID_SOCKET))
619 {
620 closesocket(s);
621 s= INVALID_SOCKET;
622 }
623 return(s);
624 }
625
626int BIO_accept(int sock, char **addr)
627 {
628 int ret=INVALID_SOCKET;
629 static struct sockaddr_in from;
630 unsigned long l;
631 unsigned short port;
632 int len;
633 char *p;
634
635 memset((char *)&from,0,sizeof(from));
636 len=sizeof(from);
637 /* Note: under VMS with SOCKETSHR the fourth parameter is currently
638 * of type (int *) whereas under other systems it is (void *) if
639 * you don't have a cast it will choke the compiler: if you do
640 * have a cast then you can either go for (int *) or (void *).
641 */
642 ret=accept(sock,(struct sockaddr *)&from,(void *)&len);
643 if (ret == INVALID_SOCKET)
644 {
645 SYSerr(SYS_F_ACCEPT,get_last_socket_error());
646 BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR);
647 goto end;
648 }
649
650 if (addr == NULL) goto end;
651
652 l=ntohl(from.sin_addr.s_addr);
653 port=ntohs(from.sin_port);
654 if (*addr == NULL)
655 {
656 if ((p=Malloc(24)) == NULL)
657 {
658 BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
659 goto end;
660 }
661 *addr=p;
662 }
663 sprintf(*addr,"%d.%d.%d.%d:%d",
664 (unsigned char)(l>>24L)&0xff,
665 (unsigned char)(l>>16L)&0xff,
666 (unsigned char)(l>> 8L)&0xff,
667 (unsigned char)(l )&0xff,
668 port);
669end:
670 return(ret);
671 }
672
673int BIO_set_tcp_ndelay(int s, int on)
674 {
675 int ret=0;
676#if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
677 int opt;
678
679#ifdef SOL_TCP
680 opt=SOL_TCP;
681#else
682#ifdef IPPROTO_TCP
683 opt=IPPROTO_TCP;
684#endif
685#endif
686
687 ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on));
688#endif
689 return(ret == 0);
690 }
691#endif
692
693int BIO_socket_nbio(int s, int mode)
694 {
695 int ret= -1;
696 unsigned long l;
697
698 l=mode;
699#ifdef FIONBIO
700 ret=BIO_socket_ioctl(s,FIONBIO,&l);
701#endif
702 return(ret == 0);
703 }
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