1 /* crypto/bio/b_sock.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
64 #include <openssl/bio.h>
65 #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
67 #if defined(NETWARE_CLIB)
68 #include <sys/ioctl.h>
73 #ifndef OPENSSL_NO_SOCK
75 #include <openssl/dso.h>
77 #define SOCKET_PROTOCOL IPPROTO_TCP
80 #define MAX_LISTEN SO_MAXCONN
81 #elif defined(SOMAXCONN)
82 #define MAX_LISTEN SOMAXCONN
87 #if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
88 static int wsa_init_done=0;
92 * WSAAPI specifier is required to make indirect calls to run-time
93 * linked WinSock 2 functions used in this module, to be specific
94 * [get|free]addrinfo and getnameinfo. This is because WinSock uses
95 * uses non-C calling convention, __stdcall vs. __cdecl, on x86
96 * Windows. On non-WinSock platforms WSAAPI needs to be void.
103 static unsigned long BIO_ghbn_hits=0L;
104 static unsigned long BIO_ghbn_miss=0L;
107 static struct ghbn_cache_st
112 } ghbn_cache[GHBN_NUM];
115 static int get_ip(const char *str,unsigned char *ip);
117 static void ghbn_free(struct hostent *a);
118 static struct hostent *ghbn_dup(struct hostent *a);
120 int BIO_get_host_ip(const char *str, unsigned char *ip)
130 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS);
134 /* At this point, we have something that is most probably correct
135 in some way, so let's init the socket. */
136 if (BIO_sock_init() != 1)
137 return 0; /* don't generate another error code here */
139 /* If the string actually contained an IP address, we need not do
141 if (i > 0) return(1);
143 /* do a gethostbyname */
144 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
146 he=BIO_gethostbyname(str);
149 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP);
153 if (he->h_addrtype != AF_INET)
155 BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
159 ip[i]=he->h_addr_list[0][i];
164 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
167 ERR_add_error_data(2,"host=",str);
174 int BIO_get_port(const char *str, unsigned short *port_ptr)
181 BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED);
186 *port_ptr=(unsigned short)i;
189 CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
190 /* Note: under VMS with SOCKETSHR, it seems like the first
191 * parameter is 'char *', instead of 'const char *'
194 s=getservbyname((char *)str,"tcp");
196 s=getservbyname(str,"tcp");
199 *port_ptr=ntohs((unsigned short)s->s_port);
200 CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
203 if (strcmp(str,"http") == 0)
205 else if (strcmp(str,"telnet") == 0)
207 else if (strcmp(str,"socks") == 0)
209 else if (strcmp(str,"https") == 0)
211 else if (strcmp(str,"ssl") == 0)
213 else if (strcmp(str,"ftp") == 0)
215 else if (strcmp(str,"gopher") == 0)
218 else if (strcmp(str,"wais") == 0)
223 SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error());
224 ERR_add_error_data(3,"service='",str,"'");
232 int BIO_sock_error(int sock)
235 union { size_t s; int i; } size;
237 /* heuristic way to adapt for platforms that expect 64-bit optlen */
238 size.s=0, size.i=sizeof(j);
239 /* Note: under Windows the third parameter is of type (char *)
240 * whereas under other systems it is (void *) if you don't have
241 * a cast it will choke the compiler: if you do have a cast then
242 * you can either go for (char *) or (void *).
244 i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size);
252 long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
259 case BIO_GHBN_CTRL_HITS:
260 return(BIO_ghbn_hits);
262 case BIO_GHBN_CTRL_MISSES:
263 return(BIO_ghbn_miss);
265 case BIO_GHBN_CTRL_CACHE_SIZE:
268 case BIO_GHBN_CTRL_GET_ENTRY:
269 if ((iarg >= 0) && (iarg <GHBN_NUM) &&
270 (ghbn_cache[iarg].order > 0))
273 if (p == NULL) return(0);
274 *p=ghbn_cache[iarg].name;
275 ghbn_cache[iarg].name[128]='\0';
280 case BIO_GHBN_CTRL_FLUSH:
281 for (i=0; i<GHBN_NUM; i++)
282 ghbn_cache[i].order=0;
292 static struct hostent *ghbn_dup(struct hostent *a)
298 ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
299 if (ret == NULL) return(NULL);
300 memset(ret,0,sizeof(struct hostent));
302 for (i=0; a->h_aliases[i] != NULL; i++)
305 ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *));
306 if (ret->h_aliases == NULL)
308 memset(ret->h_aliases, 0, i*sizeof(char *));
310 for (i=0; a->h_addr_list[i] != NULL; i++)
313 ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *));
314 if (ret->h_addr_list == NULL)
316 memset(ret->h_addr_list, 0, i*sizeof(char *));
318 j=strlen(a->h_name)+1;
319 if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err;
320 memcpy((char *)ret->h_name,a->h_name,j);
321 for (i=0; a->h_aliases[i] != NULL; i++)
323 j=strlen(a->h_aliases[i])+1;
324 if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err;
325 memcpy(ret->h_aliases[i],a->h_aliases[i],j);
327 ret->h_length=a->h_length;
328 ret->h_addrtype=a->h_addrtype;
329 for (i=0; a->h_addr_list[i] != NULL; i++)
331 if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL)
333 memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length);
346 static void ghbn_free(struct hostent *a)
353 if (a->h_aliases != NULL)
355 for (i=0; a->h_aliases[i] != NULL; i++)
356 OPENSSL_free(a->h_aliases[i]);
357 OPENSSL_free(a->h_aliases);
359 if (a->h_addr_list != NULL)
361 for (i=0; a->h_addr_list[i] != NULL; i++)
362 OPENSSL_free(a->h_addr_list[i]);
363 OPENSSL_free(a->h_addr_list);
365 if (a->h_name != NULL) OPENSSL_free(a->h_name);
371 struct hostent *BIO_gethostbyname(const char *name)
374 /* Caching gethostbyname() results forever is wrong,
375 * so we have to let the true gethostbyname() worry about this */
376 #if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
377 return gethostbyname((char*)name);
379 return gethostbyname(name);
384 unsigned long low= (unsigned long)-1;
388 /* It doesn't make sense to use locking here: The function interface
389 * is not thread-safe, because threads can never be sure when
390 * some other thread destroys the data they were given a pointer to.
392 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
397 for (i=0; i<GHBN_NUM; i++)
399 if (low > ghbn_cache[i].order)
401 low=ghbn_cache[i].order;
404 if (ghbn_cache[i].order > 0)
406 if (strncmp(name,ghbn_cache[i].name,128) == 0)
414 if (i == GHBN_NUM) /* no hit*/
417 /* Note: under VMS with SOCKETSHR, it seems like the first
418 * parameter is 'char *', instead of 'const char *'
420 # ifndef CONST_STRICT
421 ret=gethostbyname((char *)name);
423 ret=gethostbyname(name);
428 if (j > 128) /* too big to cache */
431 /* If we were trying to make this function thread-safe (which
432 * is bound to fail), we'd have to give up in this case
433 * (or allocate more memory). */
439 /* else add to cache */
440 if (ghbn_cache[lowi].ent != NULL)
441 ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
442 ghbn_cache[lowi].name[0] = '\0';
444 if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL)
446 BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE);
449 strncpy(ghbn_cache[lowi].name,name,128);
450 ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits;
455 ret= ghbn_cache[i].ent;
456 ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits;
460 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
467 int BIO_sock_init(void)
469 #ifdef OPENSSL_SYS_WINDOWS
470 static struct WSAData wsa_state;
477 memset(&wsa_state,0,sizeof(wsa_state));
478 /* Not making wsa_state available to the rest of the
479 * code is formally wrong. But the structures we use
480 * are [beleived to be] invariable among Winsock DLLs,
481 * while API availability is [expected to be] probed
482 * at run-time with DSO_global_lookup. */
483 if (WSAStartup(0x0202,&wsa_state)!=0)
485 err=WSAGetLastError();
486 SYSerr(SYS_F_WSASTARTUP,err);
487 BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
491 #endif /* OPENSSL_SYS_WINDOWS */
493 extern int _watt_do_exit;
494 _watt_do_exit = 0; /* don't make sock_init() call exit() */
499 #if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
507 wVerReq = MAKEWORD( 2, 0 );
508 err = WSAStartup(wVerReq,&wsaData);
511 SYSerr(SYS_F_WSASTARTUP,err);
512 BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
521 void BIO_sock_cleanup(void)
523 #ifdef OPENSSL_SYS_WINDOWS
527 #if 0 /* this call is claimed to be non-present in Winsock2 */
528 WSACancelBlockingCall();
532 #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
541 #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
543 int BIO_socket_ioctl(int fd, long type, void *arg)
548 i=ioctlsocket(fd,type,(char *)arg);
550 # if defined(OPENSSL_SYS_VMS)
553 * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
554 * observe that all the consumers pass in an "unsigned long *",
555 * so we arrange a local copy with a short pointer, and use
558 # if __INITIAL_POINTER_SIZE == 64
560 # pragma pointer_size save
561 # pragma pointer_size 32
562 unsigned long arg_32;
563 unsigned long *arg_32p;
564 # pragma pointer_size restore
566 arg_32 = *((unsigned long *) arg);
567 # else /* __INITIAL_POINTER_SIZE == 64 */
569 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
570 # else /* defined(OPENSSL_SYS_VMS) */
572 # endif /* defined(OPENSSL_SYS_VMS) [else] */
574 i=ioctlsocket(fd,type,ARG);
575 #endif /* __DJGPP__ */
577 SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
580 #endif /* __VMS_VER */
582 /* The reason I have implemented this instead of using sscanf is because
583 * Visual C 1.52c gives an unresolved external when linking a DLL :-( */
584 static int get_ip(const char *str, unsigned char ip[4])
589 tmp[0]=tmp[1]=tmp[2]=tmp[3]=0;
594 if ((c >= '0') && (c <= '9'))
597 tmp[num]=tmp[num]*10+c-'0';
598 if (tmp[num] > 255) return(0);
603 if (num == 3) return(0);
607 else if (c == '\0' && (num == 3) && ok)
619 int BIO_get_accept_socket(char *host, int bind_mode)
624 struct sockaddr_in sa_in;
626 struct sockaddr_in6 sa_in6;
629 int s=INVALID_SOCKET,cs,addrlen;
637 if (BIO_sock_init() != 1) return(INVALID_SOCKET);
639 if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET);
655 if (p) *p++='\0'; /* points at last ':', '::port' is special [see below] */
660 static union { void *p;
661 int (WSAAPI *f)(const char *,const char *,
662 const struct addrinfo *,
664 } p_getaddrinfo = {NULL};
665 static union { void *p;
666 void (WSAAPI *f)(struct addrinfo *);
667 } p_freeaddrinfo = {NULL};
668 struct addrinfo *res,hint;
670 if (p_getaddrinfo.p==NULL)
672 if ((p_getaddrinfo.p=DSO_global_lookup("getaddrinfo"))==NULL ||
673 (p_freeaddrinfo.p=DSO_global_lookup("freeaddrinfo"))==NULL)
674 p_getaddrinfo.p=(void*)-1;
676 if (p_getaddrinfo.p==(void *)-1) break;
678 /* '::port' enforces IPv6 wildcard listener. Some OSes,
679 * e.g. Solaris, default to IPv6 without any hint. Also
680 * note that commonly IPv6 wildchard socket can service
681 * IPv4 connections just as well... */
682 memset(&hint,0,sizeof(hint));
683 hint.ai_flags = AI_PASSIVE;
688 if (h[1]=='\0') h=NULL;
690 hint.ai_family = AF_INET6;
695 else if (h[0]=='*' && h[1]=='\0')
697 hint.ai_family = AF_INET;
702 if ((*p_getaddrinfo.f)(h,p,&hint,&res)) break;
704 addrlen = res->ai_addrlen<=sizeof(server) ?
707 memcpy(&server, res->ai_addr, addrlen);
709 (*p_freeaddrinfo.f)(res);
714 if (!BIO_get_port(p,&port)) goto err;
716 memset((char *)&server,0,sizeof(server));
717 server.sa_in.sin_family=AF_INET;
718 server.sa_in.sin_port=htons(port);
719 addrlen = sizeof(server.sa_in);
721 if (h == NULL || strcmp(h,"*") == 0)
722 server.sa_in.sin_addr.s_addr=INADDR_ANY;
725 if (!BIO_get_host_ip(h,&(ip[0]))) goto err;
727 ((unsigned long)ip[0]<<24L)|
728 ((unsigned long)ip[1]<<16L)|
729 ((unsigned long)ip[2]<< 8L)|
730 ((unsigned long)ip[3]);
731 server.sa_in.sin_addr.s_addr=htonl(l);
735 s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL);
736 if (s == INVALID_SOCKET)
738 SYSerr(SYS_F_SOCKET,get_last_socket_error());
739 ERR_add_error_data(3,"port='",host,"'");
740 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET);
745 if (bind_mode == BIO_BIND_REUSEADDR)
749 ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i));
750 bind_mode=BIO_BIND_NORMAL;
753 if (bind(s,&server.sa,addrlen) == -1)
756 err_num=get_last_socket_error();
757 if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
758 #ifdef OPENSSL_SYS_WINDOWS
759 /* Some versions of Windows define EADDRINUSE to
762 (err_num == WSAEADDRINUSE))
764 (err_num == EADDRINUSE))
768 if (h == NULL || strcmp(h,"*") == 0)
771 if (client.sa.sa_family == AF_INET6)
773 memset(&client.sa_in6.sin6_addr,0,sizeof(client.sa_in6.sin6_addr));
774 client.sa_in6.sin6_addr.s6_addr[15]=1;
778 if (client.sa.sa_family == AF_INET)
780 client.sa_in.sin_addr.s_addr=htonl(0x7F000001);
784 cs=socket(client.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL);
785 if (cs != INVALID_SOCKET)
788 ii=connect(cs,&client.sa,addrlen);
790 if (ii == INVALID_SOCKET)
792 bind_mode=BIO_BIND_REUSEADDR;
801 SYSerr(SYS_F_BIND,err_num);
802 ERR_add_error_data(3,"port='",host,"'");
803 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
806 if (listen(s,MAX_LISTEN) == -1)
808 SYSerr(SYS_F_BIND,get_last_socket_error());
809 ERR_add_error_data(3,"port='",host,"'");
810 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET);
815 if (str != NULL) OPENSSL_free(str);
816 if ((ret == 0) && (s != INVALID_SOCKET))
824 int BIO_accept(int sock, char **addr)
826 int ret=INVALID_SOCKET;
833 * As for following union. Trouble is that there are platforms
834 * that have socklen_t and there are platforms that don't, on
835 * some platforms socklen_t is int and on some size_t. So what
836 * one can do? One can cook #ifdef spaghetti, which is nothing
837 * but masochistic. Or one can do union between int and size_t.
838 * One naturally does it primarily for 64-bit platforms where
839 * sizeof(int) != sizeof(size_t). But would it work? Note that
840 * if size_t member is initialized to 0, then later int member
841 * assignment naturally does the job on little-endian platforms
842 * regardless accept's expectations! What about big-endians?
843 * If accept expects int*, then it works, and if size_t*, then
844 * length value would appear as unreasonably large. But this
845 * won't prevent it from filling in the address structure. The
846 * trouble of course would be if accept returns more data than
847 * actual buffer can accomodate and overwrite stack... That's
848 * where early OPENSSL_assert comes into picture. Besides, the
849 * only 64-bit big-endian platform found so far that expects
850 * size_t* is HP-UX, where stack grows towards higher address.
853 union { size_t s; int i; } len;
856 struct sockaddr_in sa_in;
858 struct sockaddr_in6 sa_in6;
864 sa.len.i=sizeof(sa.from);
865 memset(&sa.from,0,sizeof(sa.from));
866 ret=accept(sock,&sa.from.sa,(void *)&sa.len);
867 if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0)
869 OPENSSL_assert(sa.len.s<=sizeof(sa.from));
870 sa.len.i = (int)sa.len.s;
871 /* use sa.len.i from this point */
873 if (ret == INVALID_SOCKET)
875 if(BIO_sock_should_retry(ret)) return -2;
876 SYSerr(SYS_F_ACCEPT,get_last_socket_error());
877 BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR);
881 if (addr == NULL) goto end;
885 char h[NI_MAXHOST],s[NI_MAXSERV];
887 static union { void *p;
888 int (WSAAPI *f)(const struct sockaddr *,size_t/*socklen_t*/,
889 char *,size_t,char *,size_t,int);
890 } p_getnameinfo = {NULL};
891 /* 2nd argument to getnameinfo is specified to
892 * be socklen_t. Unfortunately there is a number
893 * of environments where socklen_t is not defined.
894 * As it's passed by value, it's safe to pass it
895 * as size_t... <appro> */
897 if (p_getnameinfo.p==NULL)
899 if ((p_getnameinfo.p=DSO_global_lookup("getnameinfo"))==NULL)
900 p_getnameinfo.p=(void*)-1;
902 if (p_getnameinfo.p==(void *)-1) break;
904 if ((*p_getnameinfo.f)(&sa.from.sa,sa.len.i,h,sizeof(h),s,sizeof(s),
905 NI_NUMERICHOST|NI_NUMERICSERV)) break;
906 nl = strlen(h)+strlen(s)+2;
908 if (p) { *p = '\0'; p = OPENSSL_realloc(p,nl); }
909 else { p = OPENSSL_malloc(nl); }
912 BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
916 BIO_snprintf(*addr,nl,"%s:%s",h,s);
920 if (sa.from.sa.sa_family != AF_INET) goto end;
921 l=ntohl(sa.from.sa_in.sin_addr.s_addr);
922 port=ntohs(sa.from.sa_in.sin_port);
925 if ((p=OPENSSL_malloc(24)) == NULL)
927 BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
932 BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d",
933 (unsigned char)(l>>24L)&0xff,
934 (unsigned char)(l>>16L)&0xff,
935 (unsigned char)(l>> 8L)&0xff,
936 (unsigned char)(l )&0xff,
942 int BIO_set_tcp_ndelay(int s, int on)
945 #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
956 ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on));
961 int BIO_socket_nbio(int s, int mode)
968 ret=BIO_socket_ioctl(s,FIONBIO,&l);