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 if (he->h_addrtype != AF_INET) {
151 BIOerr(BIO_F_BIO_GET_HOST_IP,
152 BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
155 for (i = 0; i < 4; i++)
156 ip[i] = he->h_addr_list[0][i];
161 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
163 ERR_add_error_data(2, "host=", str);
169 int BIO_get_port(const char *str, unsigned short *port_ptr)
175 BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
180 *port_ptr = (unsigned short)i;
182 CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
184 * Note: under VMS with SOCKETSHR, it seems like the first parameter
185 * is 'char *', instead of 'const char *'
187 # ifndef CONST_STRICT
188 s = getservbyname((char *)str, "tcp");
190 s = getservbyname(str, "tcp");
193 *port_ptr = ntohs((unsigned short)s->s_port);
194 CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
196 if (strcmp(str, "http") == 0)
198 else if (strcmp(str, "telnet") == 0)
200 else if (strcmp(str, "socks") == 0)
202 else if (strcmp(str, "https") == 0)
204 else if (strcmp(str, "ssl") == 0)
206 else if (strcmp(str, "ftp") == 0)
208 else if (strcmp(str, "gopher") == 0)
211 else if (strcmp(str, "wais") == 0)
215 SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error());
216 ERR_add_error_data(3, "service='", str, "'");
224 int BIO_sock_error(int sock)
232 /* heuristic way to adapt for platforms that expect 64-bit optlen */
233 size.s = 0, size.i = sizeof(j);
235 * Note: under Windows the third parameter is of type (char *) whereas
236 * under other systems it is (void *) if you don't have a cast it will
237 * choke the compiler: if you do have a cast then you can either go for
238 * (char *) or (void *).
240 i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, (void *)&size);
248 long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
254 case BIO_GHBN_CTRL_HITS:
255 return (BIO_ghbn_hits);
257 case BIO_GHBN_CTRL_MISSES:
258 return (BIO_ghbn_miss);
260 case BIO_GHBN_CTRL_CACHE_SIZE:
263 case BIO_GHBN_CTRL_GET_ENTRY:
264 if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) {
268 *p = ghbn_cache[iarg].name;
269 ghbn_cache[iarg].name[128] = '\0';
274 case BIO_GHBN_CTRL_FLUSH:
275 for (i = 0; i < GHBN_NUM; i++)
276 ghbn_cache[i].order = 0;
286 static struct hostent *ghbn_dup(struct hostent *a)
292 ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
295 memset(ret, 0, sizeof(struct hostent));
297 for (i = 0; a->h_aliases[i] != NULL; i++) ;
299 ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *));
300 if (ret->h_aliases == NULL)
302 memset(ret->h_aliases, 0, i * sizeof(char *));
304 for (i = 0; a->h_addr_list[i] != NULL; i++) ;
306 ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *));
307 if (ret->h_addr_list == NULL)
309 memset(ret->h_addr_list, 0, i * sizeof(char *));
311 j = strlen(a->h_name) + 1;
312 if ((ret->h_name = OPENSSL_malloc(j)) == NULL)
314 memcpy((char *)ret->h_name, a->h_name, j);
315 for (i = 0; a->h_aliases[i] != NULL; i++) {
316 j = strlen(a->h_aliases[i]) + 1;
317 if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL)
319 memcpy(ret->h_aliases[i], a->h_aliases[i], j);
321 ret->h_length = a->h_length;
322 ret->h_addrtype = a->h_addrtype;
323 for (i = 0; a->h_addr_list[i] != NULL; i++) {
324 if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL)
326 memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length);
338 static void ghbn_free(struct hostent *a)
345 if (a->h_aliases != NULL) {
346 for (i = 0; a->h_aliases[i] != NULL; i++)
347 OPENSSL_free(a->h_aliases[i]);
348 OPENSSL_free(a->h_aliases);
350 if (a->h_addr_list != NULL) {
351 for (i = 0; a->h_addr_list[i] != NULL; i++)
352 OPENSSL_free(a->h_addr_list[i]);
353 OPENSSL_free(a->h_addr_list);
355 if (a->h_name != NULL)
356 OPENSSL_free(a->h_name);
362 struct hostent *BIO_gethostbyname(const char *name)
366 * Caching gethostbyname() results forever is wrong, so we have to let
367 * the true gethostbyname() worry about this
369 # if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
370 return gethostbyname((char *)name);
372 return gethostbyname(name);
377 unsigned long low = (unsigned long)-1;
381 * It doesn't make sense to use locking here: The function interface is
382 * not thread-safe, because threads can never be sure when some other
383 * thread destroys the data they were given a pointer to.
385 CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
389 for (i = 0; i < GHBN_NUM; i++) {
390 if (low > ghbn_cache[i].order) {
391 low = ghbn_cache[i].order;
394 if (ghbn_cache[i].order > 0) {
395 if (strncmp(name, ghbn_cache[i].name, 128) == 0)
402 if (i == GHBN_NUM) { /* no hit */
405 * Note: under VMS with SOCKETSHR, it seems like the first parameter
406 * is 'char *', instead of 'const char *'
408 # ifndef CONST_STRICT
409 ret = gethostbyname((char *)name);
411 ret = gethostbyname(name);
416 if (j > 128) { /* too big to cache */
419 * If we were trying to make this function thread-safe (which is
420 * bound to fail), we'd have to give up in this case (or allocate
428 /* else add to cache */
429 if (ghbn_cache[lowi].ent != NULL)
430 ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
431 ghbn_cache[lowi].name[0] = '\0';
433 if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) {
434 BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE);
437 strncpy(ghbn_cache[lowi].name, name, 128);
438 ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits;
441 ret = ghbn_cache[i].ent;
442 ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits;
446 CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
452 int BIO_sock_init(void)
454 # ifdef OPENSSL_SYS_WINDOWS
455 static struct WSAData wsa_state;
457 if (!wsa_init_done) {
461 memset(&wsa_state, 0, sizeof(wsa_state));
463 * Not making wsa_state available to the rest of the code is formally
464 * wrong. But the structures we use are [beleived to be] invariable
465 * among Winsock DLLs, while API availability is [expected to be]
466 * probed at run-time with DSO_global_lookup.
468 if (WSAStartup(0x0202, &wsa_state) != 0) {
469 err = WSAGetLastError();
470 SYSerr(SYS_F_WSASTARTUP, err);
471 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
475 # endif /* OPENSSL_SYS_WINDOWS */
477 extern int _watt_do_exit;
478 _watt_do_exit = 0; /* don't make sock_init() call exit() */
483 # if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
488 if (!wsa_init_done) {
490 wVerReq = MAKEWORD(2, 0);
491 err = WSAStartup(wVerReq, &wsaData);
493 SYSerr(SYS_F_WSASTARTUP, err);
494 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
503 void BIO_sock_cleanup(void)
505 # ifdef OPENSSL_SYS_WINDOWS
508 # if 0 /* this call is claimed to be non-present in
510 WSACancelBlockingCall();
514 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
522 # if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
524 int BIO_socket_ioctl(int fd, long type, void *arg)
529 i = ioctlsocket(fd, type, (char *)arg);
531 # if defined(OPENSSL_SYS_VMS)
534 * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
535 * observe that all the consumers pass in an "unsigned long *",
536 * so we arrange a local copy with a short pointer, and use
539 # if __INITIAL_POINTER_SIZE == 64
541 # pragma pointer_size save
542 # pragma pointer_size 32
543 unsigned long arg_32;
544 unsigned long *arg_32p;
545 # pragma pointer_size restore
547 arg_32 = *((unsigned long *)arg);
548 # else /* __INITIAL_POINTER_SIZE == 64 */
550 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
551 # else /* defined(OPENSSL_SYS_VMS) */
553 # endif /* defined(OPENSSL_SYS_VMS) [else] */
555 i = ioctlsocket(fd, type, ARG);
556 # endif /* __DJGPP__ */
558 SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error());
561 # endif /* __VMS_VER */
564 * The reason I have implemented this instead of using sscanf is because
565 * Visual C 1.52c gives an unresolved external when linking a DLL :-(
567 static int get_ip(const char *str, unsigned char ip[4])
570 int num = 0, c, ok = 0;
572 tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0;
576 if ((c >= '0') && (c <= '9')) {
578 tmp[num] = tmp[num] * 10 + c - '0';
581 } else if (c == '.') {
588 } else if (c == '\0' && (num == 3) && ok)
600 int BIO_get_accept_socket(char *host, int bind_mode)
605 struct sockaddr_in sa_in;
606 # if OPENSSL_USE_IPV6
607 struct sockaddr_in6 sa_in6;
610 int s = INVALID_SOCKET, cs, addrlen;
613 char *str = NULL, *e;
618 if (BIO_sock_init() != 1)
619 return (INVALID_SOCKET);
621 if ((str = BUF_strdup(host)) == NULL)
622 return (INVALID_SOCKET);
626 for (e = str; *e; e++) {
629 } else if (*e == '/') {
635 *p++ = '\0'; /* points at last ':', '::port' is special
644 int (WSAAPI *f) (const char *, const char *,
645 const struct addrinfo *, struct addrinfo **);
651 void (WSAAPI *f) (struct addrinfo *);
655 struct addrinfo *res, hint;
657 if (p_getaddrinfo.p == NULL) {
658 if ((p_getaddrinfo.p = DSO_global_lookup("getaddrinfo")) == NULL
659 || (p_freeaddrinfo.p =
660 DSO_global_lookup("freeaddrinfo")) == NULL)
661 p_getaddrinfo.p = (void *)-1;
663 if (p_getaddrinfo.p == (void *)-1)
667 * '::port' enforces IPv6 wildcard listener. Some OSes, e.g. Solaris,
668 * default to IPv6 without any hint. Also note that commonly IPv6
669 * wildchard socket can service IPv4 connections just as well...
671 memset(&hint, 0, sizeof(hint));
672 hint.ai_flags = AI_PASSIVE;
674 if (strchr(h, ':')) {
677 # if OPENSSL_USE_IPV6
678 hint.ai_family = AF_INET6;
682 } else if (h[0] == '*' && h[1] == '\0') {
683 hint.ai_family = AF_INET;
688 if ((*p_getaddrinfo.f) (h, p, &hint, &res))
691 addrlen = res->ai_addrlen <= sizeof(server) ?
692 res->ai_addrlen : sizeof(server);
693 memcpy(&server, res->ai_addr, addrlen);
695 (*p_freeaddrinfo.f) (res);
700 if (!BIO_get_port(p, &port))
703 memset((char *)&server, 0, sizeof(server));
704 server.sa_in.sin_family = AF_INET;
705 server.sa_in.sin_port = htons(port);
706 addrlen = sizeof(server.sa_in);
708 if (h == NULL || strcmp(h, "*") == 0)
709 server.sa_in.sin_addr.s_addr = INADDR_ANY;
711 if (!BIO_get_host_ip(h, &(ip[0])))
714 ((unsigned long)ip[0] << 24L) |
715 ((unsigned long)ip[1] << 16L) |
716 ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]);
717 server.sa_in.sin_addr.s_addr = htonl(l);
721 s = socket(server.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
722 if (s == INVALID_SOCKET) {
723 SYSerr(SYS_F_SOCKET, get_last_socket_error());
724 ERR_add_error_data(3, "port='", host, "'");
725 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET);
729 if (bind_mode == BIO_BIND_REUSEADDR) {
732 ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i));
733 bind_mode = BIO_BIND_NORMAL;
736 if (bind(s, &server.sa, addrlen) == -1) {
738 err_num = get_last_socket_error();
739 if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
740 # ifdef OPENSSL_SYS_WINDOWS
742 * Some versions of Windows define EADDRINUSE to a dummy value.
744 (err_num == WSAEADDRINUSE))
746 (err_num == EADDRINUSE))
750 if (h == NULL || strcmp(h, "*") == 0) {
751 # if OPENSSL_USE_IPV6
752 if (client.sa.sa_family == AF_INET6) {
753 memset(&client.sa_in6.sin6_addr, 0,
754 sizeof(client.sa_in6.sin6_addr));
755 client.sa_in6.sin6_addr.s6_addr[15] = 1;
758 if (client.sa.sa_family == AF_INET) {
759 client.sa_in.sin_addr.s_addr = htonl(0x7F000001);
763 cs = socket(client.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
764 if (cs != INVALID_SOCKET) {
766 ii = connect(cs, &client.sa, addrlen);
768 if (ii == INVALID_SOCKET) {
769 bind_mode = BIO_BIND_REUSEADDR;
778 SYSerr(SYS_F_BIND, err_num);
779 ERR_add_error_data(3, "port='", host, "'");
780 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET);
783 if (listen(s, MAX_LISTEN) == -1) {
784 SYSerr(SYS_F_BIND, get_last_socket_error());
785 ERR_add_error_data(3, "port='", host, "'");
786 BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET);
793 if ((ret == 0) && (s != INVALID_SOCKET)) {
800 int BIO_accept(int sock, char **addr)
802 int ret = INVALID_SOCKET;
809 * As for following union. Trouble is that there are platforms
810 * that have socklen_t and there are platforms that don't, on
811 * some platforms socklen_t is int and on some size_t. So what
812 * one can do? One can cook #ifdef spaghetti, which is nothing
813 * but masochistic. Or one can do union between int and size_t.
814 * One naturally does it primarily for 64-bit platforms where
815 * sizeof(int) != sizeof(size_t). But would it work? Note that
816 * if size_t member is initialized to 0, then later int member
817 * assignment naturally does the job on little-endian platforms
818 * regardless accept's expectations! What about big-endians?
819 * If accept expects int*, then it works, and if size_t*, then
820 * length value would appear as unreasonably large. But this
821 * won't prevent it from filling in the address structure. The
822 * trouble of course would be if accept returns more data than
823 * actual buffer can accomodate and overwrite stack... That's
824 * where early OPENSSL_assert comes into picture. Besides, the
825 * only 64-bit big-endian platform found so far that expects
826 * size_t* is HP-UX, where stack grows towards higher address.
835 struct sockaddr_in sa_in;
836 # if OPENSSL_USE_IPV6
837 struct sockaddr_in6 sa_in6;
843 sa.len.i = sizeof(sa.from);
844 memset(&sa.from, 0, sizeof(sa.from));
845 ret = accept(sock, &sa.from.sa, (void *)&sa.len);
846 if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) {
847 OPENSSL_assert(sa.len.s <= sizeof(sa.from));
848 sa.len.i = (int)sa.len.s;
849 /* use sa.len.i from this point */
851 if (ret == INVALID_SOCKET) {
852 if (BIO_sock_should_retry(ret))
854 SYSerr(SYS_F_ACCEPT, get_last_socket_error());
855 BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
864 char h[NI_MAXHOST], s[NI_MAXSERV];
868 int (WSAAPI *f) (const struct sockaddr *, size_t /* socklen_t */ ,
869 char *, size_t, char *, size_t, int);
874 * 2nd argument to getnameinfo is specified to be socklen_t.
875 * Unfortunately there is a number of environments where socklen_t is
876 * not defined. As it's passed by value, it's safe to pass it as
880 if (p_getnameinfo.p == NULL) {
881 if ((p_getnameinfo.p = DSO_global_lookup("getnameinfo")) == NULL)
882 p_getnameinfo.p = (void *)-1;
884 if (p_getnameinfo.p == (void *)-1)
887 if ((*p_getnameinfo.f) (&sa.from.sa, sa.len.i, h, sizeof(h), s,
888 sizeof(s), NI_NUMERICHOST | NI_NUMERICSERV))
890 nl = strlen(h) + strlen(s) + 2;
894 p = OPENSSL_realloc(p, nl);
896 p = OPENSSL_malloc(nl);
899 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
903 BIO_snprintf(*addr, nl, "%s:%s", h, s);
907 if (sa.from.sa.sa_family != AF_INET)
909 l = ntohl(sa.from.sa_in.sin_addr.s_addr);
910 port = ntohs(sa.from.sa_in.sin_port);
912 if ((p = OPENSSL_malloc(24)) == NULL) {
913 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
918 BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d",
919 (unsigned char)(l >> 24L) & 0xff,
920 (unsigned char)(l >> 16L) & 0xff,
921 (unsigned char)(l >> 8L) & 0xff,
922 (unsigned char)(l) & 0xff, port);
927 int BIO_set_tcp_ndelay(int s, int on)
930 # if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
941 ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
946 int BIO_socket_nbio(int s, int mode)
953 ret = BIO_socket_ioctl(s, FIONBIO, &l);