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>
72 #ifndef OPENSSL_NO_SOCK
73 # include <openssl/dso.h>
74 # define SOCKET_PROTOCOL IPPROTO_TCP
76 # define MAX_LISTEN SO_MAXCONN
77 # elif defined(SOMAXCONN)
78 # define MAX_LISTEN SOMAXCONN
80 # define MAX_LISTEN 32
82 # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
83 static int wsa_init_done = 0;
87 * WSAAPI specifier is required to make indirect calls to run-time
88 * linked WinSock 2 functions used in this module, to be specific
89 * [get|free]addrinfo and getnameinfo. This is because WinSock uses
90 * uses non-C calling convention, __stdcall vs. __cdecl, on x86
91 * Windows. On non-WinSock platforms WSAAPI needs to be void.
98 static unsigned long BIO_ghbn_hits = 0L;
99 static unsigned long BIO_ghbn_miss = 0L;
102 static struct ghbn_cache_st {
106 } ghbn_cache[GHBN_NUM];
109 static int get_ip(const char *str, unsigned char *ip);
111 static void ghbn_free(struct hostent *a);
112 static struct hostent *ghbn_dup(struct hostent *a);
114 int BIO_get_host_ip(const char *str, unsigned char *ip)
123 BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_INVALID_IP_ADDRESS);
128 * At this point, we have something that is most probably correct in some
129 * way, so let's init the socket.
131 if (BIO_sock_init() != 1)
132 return 0; /* don't generate another error code here */
135 * If the string actually contained an IP address, we need not do
141 /* do a gethostbyname */
142 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
144 he = BIO_gethostbyname(str);
146 BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_BAD_HOSTNAME_LOOKUP);
150 /* cast to short because of win16 winsock definition */
151 if ((short)he->h_addrtype != AF_INET) {
152 BIOerr(BIO_F_BIO_GET_HOST_IP,
153 BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
156 for (i = 0; i < 4; i++)
157 ip[i] = he->h_addr_list[0][i];
162 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
164 ERR_add_error_data(2, "host=", str);
170 int BIO_get_port(const char *str, unsigned short *port_ptr)
176 BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
181 *port_ptr = (unsigned short)i;
183 CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
185 * Note: under VMS with SOCKETSHR, it seems like the first parameter
186 * is 'char *', instead of 'const char *'
188 # ifndef CONST_STRICT
189 s = getservbyname((char *)str, "tcp");
191 s = getservbyname(str, "tcp");
194 *port_ptr = ntohs((unsigned short)s->s_port);
195 CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
197 if (strcmp(str, "http") == 0)
199 else if (strcmp(str, "telnet") == 0)
201 else if (strcmp(str, "socks") == 0)
203 else if (strcmp(str, "https") == 0)
205 else if (strcmp(str, "ssl") == 0)
207 else if (strcmp(str, "ftp") == 0)
209 else if (strcmp(str, "gopher") == 0)
212 else if (strcmp(str, "wais") == 0)
216 SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error());
217 ERR_add_error_data(3, "service='", str, "'");
225 int BIO_sock_error(int sock)
230 # if defined(OPENSSL_SYS_BEOS_R5)
236 * Note: under Windows the third parameter is of type (char *) whereas
237 * under other systems it is (void *) if you don't have a cast it will
238 * choke the compiler: if you do have a cast then you can either go for
239 * (char *) or (void *).
241 i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, (void *)&size);
249 long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
255 case BIO_GHBN_CTRL_HITS:
256 return (BIO_ghbn_hits);
258 case BIO_GHBN_CTRL_MISSES:
259 return (BIO_ghbn_miss);
261 case BIO_GHBN_CTRL_CACHE_SIZE:
264 case BIO_GHBN_CTRL_GET_ENTRY:
265 if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) {
269 *p = ghbn_cache[iarg].name;
270 ghbn_cache[iarg].name[128] = '\0';
275 case BIO_GHBN_CTRL_FLUSH:
276 for (i = 0; i < GHBN_NUM; i++)
277 ghbn_cache[i].order = 0;
287 static struct hostent *ghbn_dup(struct hostent *a)
293 ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
296 memset(ret, 0, sizeof(struct hostent));
298 for (i = 0; a->h_aliases[i] != NULL; i++) ;
300 ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *));
301 if (ret->h_aliases == NULL)
303 memset(ret->h_aliases, 0, i * sizeof(char *));
305 for (i = 0; a->h_addr_list[i] != NULL; i++) ;
307 ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *));
308 if (ret->h_addr_list == NULL)
310 memset(ret->h_addr_list, 0, i * sizeof(char *));
312 j = strlen(a->h_name) + 1;
313 if ((ret->h_name = OPENSSL_malloc(j)) == NULL)
315 memcpy((char *)ret->h_name, a->h_name, j);
316 for (i = 0; a->h_aliases[i] != NULL; i++) {
317 j = strlen(a->h_aliases[i]) + 1;
318 if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL)
320 memcpy(ret->h_aliases[i], a->h_aliases[i], j);
322 ret->h_length = a->h_length;
323 ret->h_addrtype = a->h_addrtype;
324 for (i = 0; a->h_addr_list[i] != NULL; i++) {
325 if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL)
327 memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length);
339 static void ghbn_free(struct hostent *a)
346 if (a->h_aliases != NULL) {
347 for (i = 0; a->h_aliases[i] != NULL; i++)
348 OPENSSL_free(a->h_aliases[i]);
349 OPENSSL_free(a->h_aliases);
351 if (a->h_addr_list != NULL) {
352 for (i = 0; a->h_addr_list[i] != NULL; i++)
353 OPENSSL_free(a->h_addr_list[i]);
354 OPENSSL_free(a->h_addr_list);
356 if (a->h_name != NULL)
357 OPENSSL_free(a->h_name);
363 struct hostent *BIO_gethostbyname(const char *name)
367 * Caching gethostbyname() results forever is wrong, so we have to let
368 * the true gethostbyname() worry about this
370 # if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
371 return gethostbyname((char *)name);
373 return gethostbyname(name);
378 unsigned long low = (unsigned long)-1;
382 * It doesn't make sense to use locking here: The function interface is
383 * not thread-safe, because threads can never be sure when some other
384 * thread destroys the data they were given a pointer to.
386 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
390 for (i = 0; i < GHBN_NUM; i++) {
391 if (low > ghbn_cache[i].order) {
392 low = ghbn_cache[i].order;
395 if (ghbn_cache[i].order > 0) {
396 if (strncmp(name, ghbn_cache[i].name, 128) == 0)
403 if (i == GHBN_NUM) { /* no hit */
406 * Note: under VMS with SOCKETSHR, it seems like the first parameter
407 * is 'char *', instead of 'const char *'
409 # ifndef CONST_STRICT
410 ret = gethostbyname((char *)name);
412 ret = gethostbyname(name);
417 if (j > 128) { /* too big to cache */
420 * If we were trying to make this function thread-safe (which is
421 * bound to fail), we'd have to give up in this case (or allocate
429 /* else add to cache */
430 if (ghbn_cache[lowi].ent != NULL)
431 ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
432 ghbn_cache[lowi].name[0] = '\0';
434 if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) {
435 BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE);
438 strncpy(ghbn_cache[lowi].name, name, 128);
439 ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits;
442 ret = ghbn_cache[i].ent;
443 ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits;
447 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
453 int BIO_sock_init(void)
455 # ifdef OPENSSL_SYS_WINDOWS
456 static struct WSAData wsa_state;
458 if (!wsa_init_done) {
462 memset(&wsa_state, 0, sizeof(wsa_state));
464 * Not making wsa_state available to the rest of the code is formally
465 * wrong. But the structures we use are [beleived to be] invariable
466 * among Winsock DLLs, while API availability is [expected to be]
467 * probed at run-time with DSO_global_lookup.
469 if (WSAStartup(0x0202, &wsa_state) != 0) {
470 err = WSAGetLastError();
471 SYSerr(SYS_F_WSASTARTUP, err);
472 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
476 # endif /* OPENSSL_SYS_WINDOWS */
478 extern int _watt_do_exit;
479 _watt_do_exit = 0; /* don't make sock_init() call exit() */
484 # if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
489 if (!wsa_init_done) {
491 wVerReq = MAKEWORD(2, 0);
492 err = WSAStartup(wVerReq, &wsaData);
494 SYSerr(SYS_F_WSASTARTUP, err);
495 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
504 void BIO_sock_cleanup(void)
506 # ifdef OPENSSL_SYS_WINDOWS
509 # if 0 /* this call is claimed to be non-present in
511 WSACancelBlockingCall();
515 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
523 # if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
525 int BIO_socket_ioctl(int fd, long type, void *arg)
530 i = ioctlsocket(fd, type, (char *)arg);
532 # if defined(OPENSSL_SYS_VMS)
535 * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
536 * observe that all the consumers pass in an "unsigned long *",
537 * so we arrange a local copy with a short pointer, and use
540 # if __INITIAL_POINTER_SIZE == 64
542 # pragma pointer_size save
543 # pragma pointer_size 32
544 unsigned long arg_32;
545 unsigned long *arg_32p;
546 # pragma pointer_size restore
548 arg_32 = *((unsigned long *)arg);
549 # else /* __INITIAL_POINTER_SIZE == 64 */
551 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
552 # else /* defined(OPENSSL_SYS_VMS) */
554 # endif /* defined(OPENSSL_SYS_VMS) [else] */
556 i = ioctlsocket(fd, type, ARG);
557 # endif /* __DJGPP__ */
559 SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error());
562 # endif /* __VMS_VER */
565 * The reason I have implemented this instead of using sscanf is because
566 * Visual C 1.52c gives an unresolved external when linking a DLL :-(
568 static int get_ip(const char *str, unsigned char ip[4])
571 int num = 0, c, ok = 0;
573 tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0;
577 if ((c >= '0') && (c <= '9')) {
579 tmp[num] = tmp[num] * 10 + c - '0';
582 } else if (c == '.') {
589 } else if (c == '\0' && (num == 3) && ok)
601 int BIO_get_accept_socket(char *host, int bind_mode)
606 struct sockaddr_in sa_in;
607 # if OPENSSL_USE_IPV6
608 struct sockaddr_in6 sa_in6;
611 int s = INVALID_SOCKET, cs, addrlen;
614 char *str = NULL, *e;
619 if (BIO_sock_init() != 1)
620 return (INVALID_SOCKET);
622 if ((str = BUF_strdup(host)) == NULL)
623 return (INVALID_SOCKET);
627 for (e = str; *e; e++) {
630 } else if (*e == '/') {
636 *p++ = '\0'; /* points at last ':', '::port' is special
645 int (WSAAPI *f) (const char *, const char *,
646 const struct addrinfo *, struct addrinfo **);
652 void (WSAAPI *f) (struct addrinfo *);
656 struct addrinfo *res, hint;
658 if (p_getaddrinfo.p == NULL) {
659 if ((p_getaddrinfo.p = DSO_global_lookup("getaddrinfo")) == NULL
660 || (p_freeaddrinfo.p =
661 DSO_global_lookup("freeaddrinfo")) == NULL)
662 p_getaddrinfo.p = (void *)-1;
664 if (p_getaddrinfo.p == (void *)-1)
668 * '::port' enforces IPv6 wildcard listener. Some OSes, e.g. Solaris,
669 * default to IPv6 without any hint. Also note that commonly IPv6
670 * wildchard socket can service IPv4 connections just as well...
672 memset(&hint, 0, sizeof(hint));
673 hint.ai_flags = AI_PASSIVE;
675 if (strchr(h, ':')) {
678 # if OPENSSL_USE_IPV6
679 hint.ai_family = AF_INET6;
683 } else if (h[0] == '*' && h[1] == '\0') {
684 hint.ai_family = AF_INET;
689 if ((*p_getaddrinfo.f) (h, p, &hint, &res))
692 addrlen = res->ai_addrlen <= sizeof(server) ?
693 res->ai_addrlen : sizeof(server);
694 memcpy(&server, res->ai_addr, addrlen);
696 (*p_freeaddrinfo.f) (res);
701 if (!BIO_get_port(p, &port))
704 memset((char *)&server, 0, sizeof(server));
705 server.sa_in.sin_family = AF_INET;
706 server.sa_in.sin_port = htons(port);
707 addrlen = sizeof(server.sa_in);
709 if (h == NULL || strcmp(h, "*") == 0)
710 server.sa_in.sin_addr.s_addr = INADDR_ANY;
712 if (!BIO_get_host_ip(h, &(ip[0])))
715 ((unsigned long)ip[0] << 24L) |
716 ((unsigned long)ip[1] << 16L) |
717 ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]);
718 server.sa_in.sin_addr.s_addr = htonl(l);
722 s = socket(server.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
723 if (s == INVALID_SOCKET) {
724 SYSerr(SYS_F_SOCKET, get_last_socket_error());
725 ERR_add_error_data(3, "port='", host, "'");
726 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET);
730 if (bind_mode == BIO_BIND_REUSEADDR) {
733 ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i));
734 bind_mode = BIO_BIND_NORMAL;
737 if (bind(s, &server.sa, addrlen) == -1) {
739 err_num = get_last_socket_error();
740 if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
741 # ifdef OPENSSL_SYS_WINDOWS
743 * Some versions of Windows define EADDRINUSE to a dummy value.
745 (err_num == WSAEADDRINUSE))
747 (err_num == EADDRINUSE))
751 if (h == NULL || strcmp(h, "*") == 0) {
752 # if OPENSSL_USE_IPV6
753 if (client.sa.sa_family == AF_INET6) {
754 memset(&client.sa_in6.sin6_addr, 0,
755 sizeof(client.sa_in6.sin6_addr));
756 client.sa_in6.sin6_addr.s6_addr[15] = 1;
759 if (client.sa.sa_family == AF_INET) {
760 client.sa_in.sin_addr.s_addr = htonl(0x7F000001);
764 cs = socket(client.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
765 if (cs != INVALID_SOCKET) {
767 ii = connect(cs, &client.sa, addrlen);
769 if (ii == INVALID_SOCKET) {
770 bind_mode = BIO_BIND_REUSEADDR;
779 SYSerr(SYS_F_BIND, err_num);
780 ERR_add_error_data(3, "port='", host, "'");
781 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET);
784 if (listen(s, MAX_LISTEN) == -1) {
785 SYSerr(SYS_F_BIND, get_last_socket_error());
786 ERR_add_error_data(3, "port='", host, "'");
787 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET);
794 if ((ret == 0) && (s != INVALID_SOCKET)) {
801 int BIO_accept(int sock, char **addr)
803 int ret = INVALID_SOCKET;
810 * As for following union. Trouble is that there are platforms
811 * that have socklen_t and there are platforms that don't, on
812 * some platforms socklen_t is int and on some size_t. So what
813 * one can do? One can cook #ifdef spaghetti, which is nothing
814 * but masochistic. Or one can do union between int and size_t.
815 * One naturally does it primarily for 64-bit platforms where
816 * sizeof(int) != sizeof(size_t). But would it work? Note that
817 * if size_t member is initialized to 0, then later int member
818 * assignment naturally does the job on little-endian platforms
819 * regardless accept's expectations! What about big-endians?
820 * If accept expects int*, then it works, and if size_t*, then
821 * length value would appear as unreasonably large. But this
822 * won't prevent it from filling in the address structure. The
823 * trouble of course would be if accept returns more data than
824 * actual buffer can accomodate and overwrite stack... That's
825 * where early OPENSSL_assert comes into picture. Besides, the
826 * only 64-bit big-endian platform found so far that expects
827 * size_t* is HP-UX, where stack grows towards higher address.
836 struct sockaddr_in sa_in;
837 # if OPENSSL_USE_IPV6
838 struct sockaddr_in6 sa_in6;
844 sa.len.i = sizeof(sa.from);
845 memset(&sa.from, 0, sizeof(sa.from));
846 ret = accept(sock, &sa.from.sa, (void *)&sa.len);
847 if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) {
848 OPENSSL_assert(sa.len.s <= sizeof(sa.from));
849 sa.len.i = (int)sa.len.s;
850 /* use sa.len.i from this point */
852 if (ret == INVALID_SOCKET) {
853 if (BIO_sock_should_retry(ret))
855 SYSerr(SYS_F_ACCEPT, get_last_socket_error());
856 BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
865 char h[NI_MAXHOST], s[NI_MAXSERV];
869 int (WSAAPI *f) (const struct sockaddr *, size_t /* socklen_t */ ,
870 char *, size_t, char *, size_t, int);
875 * 2nd argument to getnameinfo is specified to be socklen_t.
876 * Unfortunately there is a number of environments where socklen_t is
877 * not defined. As it's passed by value, it's safe to pass it as
881 if (p_getnameinfo.p == NULL) {
882 if ((p_getnameinfo.p = DSO_global_lookup("getnameinfo")) == NULL)
883 p_getnameinfo.p = (void *)-1;
885 if (p_getnameinfo.p == (void *)-1)
888 if ((*p_getnameinfo.f) (&sa.from.sa, sa.len.i, h, sizeof(h), s,
889 sizeof(s), NI_NUMERICHOST | NI_NUMERICSERV))
891 nl = strlen(h) + strlen(s) + 2;
895 p = OPENSSL_realloc(p, nl);
897 p = OPENSSL_malloc(nl);
900 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
904 BIO_snprintf(*addr, nl, "%s:%s", h, s);
908 if (sa.from.sa.sa_family != AF_INET)
910 l = ntohl(sa.from.sa_in.sin_addr.s_addr);
911 port = ntohs(sa.from.sa_in.sin_port);
913 if ((p = OPENSSL_malloc(24)) == NULL) {
914 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
919 BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d",
920 (unsigned char)(l >> 24L) & 0xff,
921 (unsigned char)(l >> 16L) & 0xff,
922 (unsigned char)(l >> 8L) & 0xff,
923 (unsigned char)(l) & 0xff, port);
928 int BIO_set_tcp_ndelay(int s, int on)
931 # if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
942 ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
947 int BIO_socket_nbio(int s, int mode)
954 ret = BIO_socket_ioctl(s, FIONBIO, &l);