1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
62 #if defined(NETWARE_CLIB)
63 # include <sys/ioctl.h>
66 #ifndef OPENSSL_NO_SOCK
67 # define SOCKET_PROTOCOL IPPROTO_TCP
69 # define MAX_LISTEN SO_MAXCONN
70 # elif defined(SOMAXCONN)
71 # define MAX_LISTEN SOMAXCONN
73 # define MAX_LISTEN 32
75 # if defined(OPENSSL_SYS_WINDOWS)
76 static int wsa_init_done = 0;
79 # if OPENSSL_API_COMPAT < 0x10100000L
80 int BIO_get_host_ip(const char *str, unsigned char *ip)
82 BIO_ADDRINFO *res = NULL;
85 if (BIO_sock_init() != 1)
86 return 0; /* don't generate another error code here */
88 if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
91 if (BIO_ADDRINFO_family(res) != AF_INET) {
92 BIOerr(BIO_F_BIO_GET_HOST_IP,
93 BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
95 BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l);
96 /* Because only AF_INET addresses will reach this far,
97 we can assert that l should be 4 */
98 OPENSSL_assert(l == 4);
100 BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
103 BIO_ADDRINFO_free(res);
105 ERR_add_error_data(2, "host=", str);
111 int BIO_get_port(const char *str, unsigned short *port_ptr)
113 BIO_ADDRINFO *res = NULL;
117 BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
121 if (BIO_sock_init() != 1)
122 return 0; /* don't generate another error code here */
124 if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
125 if (BIO_ADDRINFO_family(res) != AF_INET) {
126 BIOerr(BIO_F_BIO_GET_PORT,
127 BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
129 *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
132 BIO_ADDRINFO_free(res);
134 ERR_add_error_data(2, "host=", str);
141 int BIO_sock_error(int sock)
144 socklen_t size = sizeof(j);
147 * Note: under Windows the third parameter is of type (char *) whereas
148 * under other systems it is (void *) if you don't have a cast it will
149 * choke the compiler: if you do have a cast then you can either go for
150 * (char *) or (void *).
152 i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
154 return (get_last_socket_error());
159 # if OPENSSL_API_COMPAT < 0x10100000L
160 struct hostent *BIO_gethostbyname(const char *name)
163 * Caching gethostbyname() results forever is wrong, so we have to let
164 * the true gethostbyname() worry about this
166 # if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
167 return gethostbyname((char *)name);
169 return gethostbyname(name);
174 int BIO_sock_init(void)
176 # ifdef OPENSSL_SYS_WINDOWS
177 static struct WSAData wsa_state;
179 if (!wsa_init_done) {
183 memset(&wsa_state, 0, sizeof(wsa_state));
185 * Not making wsa_state available to the rest of the code is formally
186 * wrong. But the structures we use are [believed to be] invariable
187 * among Winsock DLLs, while API availability is [expected to be]
188 * probed at run-time with DSO_global_lookup.
190 if (WSAStartup(0x0202, &wsa_state) != 0) {
191 err = WSAGetLastError();
192 SYSerr(SYS_F_WSASTARTUP, err);
193 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
197 # endif /* OPENSSL_SYS_WINDOWS */
199 extern int _watt_do_exit;
200 _watt_do_exit = 0; /* don't make sock_init() call exit() */
208 void bio_sock_cleanup_int(void)
210 # ifdef OPENSSL_SYS_WINDOWS
218 # if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
220 int BIO_socket_ioctl(int fd, long type, void *arg)
225 i = ioctlsocket(fd, type, (char *)arg);
227 # if defined(OPENSSL_SYS_VMS)
230 * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
231 * observe that all the consumers pass in an "unsigned long *",
232 * so we arrange a local copy with a short pointer, and use
235 # if __INITIAL_POINTER_SIZE == 64
237 # pragma pointer_size save
238 # pragma pointer_size 32
239 unsigned long arg_32;
240 unsigned long *arg_32p;
241 # pragma pointer_size restore
243 arg_32 = *((unsigned long *)arg);
244 # else /* __INITIAL_POINTER_SIZE == 64 */
246 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
247 # else /* defined(OPENSSL_SYS_VMS) */
249 # endif /* defined(OPENSSL_SYS_VMS) [else] */
251 i = ioctlsocket(fd, type, ARG);
252 # endif /* __DJGPP__ */
254 SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error());
257 # endif /* __VMS_VER */
259 # if OPENSSL_API_COMPAT < 0x10100000L
260 int BIO_get_accept_socket(char *host, int bind_mode)
262 int s = INVALID_SOCKET;
263 char *h = NULL, *p = NULL;
264 BIO_ADDRINFO *res = NULL;
266 if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
267 return INVALID_SOCKET;
269 if (BIO_sock_init() != 1)
270 return INVALID_SOCKET;
272 if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
275 if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
276 BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
281 if (!BIO_listen(s, BIO_ADDRINFO_address(res),
282 bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
288 BIO_ADDRINFO_free(res);
295 int BIO_accept(int sock, char **ip_port)
300 ret = BIO_accept_ex(sock, &res, 0);
301 if (ret == (int)INVALID_SOCKET) {
302 if (BIO_sock_should_retry(ret)) {
306 SYSerr(SYS_F_ACCEPT, get_last_socket_error());
307 BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
311 if (ip_port != NULL) {
312 char *host = BIO_ADDR_hostname_string(&res, 1);
313 char *port = BIO_ADDR_service_string(&res, 1);
314 if (host != NULL && port != NULL)
315 *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
319 if (*ip_port == NULL) {
320 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
321 BIO_closesocket(ret);
322 ret = (int)INVALID_SOCKET;
324 strcpy(*ip_port, host);
325 strcat(*ip_port, ":");
326 strcat(*ip_port, port);
337 int BIO_set_tcp_ndelay(int s, int on)
340 # if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
351 ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
356 int BIO_socket_nbio(int s, int mode)
365 ret = BIO_socket_ioctl(s, FIONBIO, &l);
366 # elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) || defined(FNDELAY))
367 /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
369 l = fcntl(s, F_GETFL, 0);
371 SYSerr(SYS_F_FCNTL, get_last_rtl_error());
374 # if defined(O_NONBLOCK)
377 l &= ~FNDELAY; /* BSD4.x */
380 # if defined(O_NONBLOCK)
383 l |= FNDELAY; /* BSD4.x */
386 ret = fcntl(s, F_SETFL, l);
389 SYSerr(SYS_F_FCNTL, get_last_rtl_error());
393 /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
394 BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT);
400 int BIO_sock_info(int sock,
401 enum BIO_sock_info_type type, union BIO_sock_info_u *info)
404 case BIO_SOCK_INFO_ADDRESS:
408 addr_len = sizeof(*info->addr);
409 ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
412 SYSerr(SYS_F_GETSOCKNAME, get_last_socket_error());
413 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
416 if ((size_t)addr_len > sizeof(*info->addr)) {
417 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
423 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE);