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 # include <openssl/dso.h>
68 # define SOCKET_PROTOCOL IPPROTO_TCP
70 # define MAX_LISTEN SO_MAXCONN
71 # elif defined(SOMAXCONN)
72 # define MAX_LISTEN SOMAXCONN
74 # define MAX_LISTEN 32
76 # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
77 static int wsa_init_done = 0;
81 * WSAAPI specifier is required to make indirect calls to run-time
82 * linked WinSock 2 functions used in this module, to be specific
83 * [get|free]addrinfo and getnameinfo. This is because WinSock uses
84 * uses non-C calling convention, __stdcall vs. __cdecl, on x86
85 * Windows. On non-WinSock platforms WSAAPI needs to be void.
91 # if OPENSSL_API_COMPAT < 0x10100000L
92 int BIO_get_host_ip(const char *str, unsigned char *ip)
94 BIO_ADDRINFO *res = NULL;
97 if (BIO_sock_init() != 1)
98 return 0; /* don't generate another error code here */
100 if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
103 if (BIO_ADDRINFO_family(res) != AF_INET) {
104 BIOerr(BIO_F_BIO_GET_HOST_IP,
105 BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
107 BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l);
108 /* Because only AF_INET addresses will reach this far,
109 we can assert that l should be 4 */
110 OPENSSL_assert(l == 4);
112 BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
115 BIO_ADDRINFO_free(res);
117 ERR_add_error_data(2, "host=", str);
123 int BIO_get_port(const char *str, unsigned short *port_ptr)
125 BIO_ADDRINFO *res = NULL;
129 BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
133 if (BIO_sock_init() != 1)
134 return 0; /* don't generate another error code here */
136 if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
137 if (BIO_ADDRINFO_family(res) != AF_INET) {
138 BIOerr(BIO_F_BIO_GET_PORT,
139 BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
141 *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
144 BIO_ADDRINFO_free(res);
146 ERR_add_error_data(2, "host=", str);
153 int BIO_sock_error(int sock)
159 * Note: under Windows the third parameter is of type (char *) whereas
160 * under other systems it is (void *) if you don't have a cast it will
161 * choke the compiler: if you do have a cast then you can either go for
162 * (char *) or (void *).
164 i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
171 # if OPENSSL_API_COMPAT < 0x10100000L
172 struct hostent *BIO_gethostbyname(const char *name)
175 * Caching gethostbyname() results forever is wrong, so we have to let
176 * the true gethostbyname() worry about this
178 # if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
179 return gethostbyname((char *)name);
181 return gethostbyname(name);
186 int BIO_sock_init(void)
188 # ifdef OPENSSL_SYS_WINDOWS
189 static struct WSAData wsa_state;
191 if (!wsa_init_done) {
195 memset(&wsa_state, 0, sizeof(wsa_state));
197 * Not making wsa_state available to the rest of the code is formally
198 * wrong. But the structures we use are [beleived to be] invariable
199 * among Winsock DLLs, while API availability is [expected to be]
200 * probed at run-time with DSO_global_lookup.
202 if (WSAStartup(0x0202, &wsa_state) != 0) {
203 err = WSAGetLastError();
204 SYSerr(SYS_F_WSASTARTUP, err);
205 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
209 # endif /* OPENSSL_SYS_WINDOWS */
211 extern int _watt_do_exit;
212 _watt_do_exit = 0; /* don't make sock_init() call exit() */
217 # if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
222 if (!wsa_init_done) {
224 wVerReq = MAKEWORD(2, 0);
225 err = WSAStartup(wVerReq, &wsaData);
227 SYSerr(SYS_F_WSASTARTUP, err);
228 BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
237 void BIO_sock_cleanup(void)
239 # ifdef OPENSSL_SYS_WINDOWS
244 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
252 # if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
254 int BIO_socket_ioctl(int fd, long type, void *arg)
259 i = ioctlsocket(fd, type, (char *)arg);
261 # if defined(OPENSSL_SYS_VMS)
264 * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
265 * observe that all the consumers pass in an "unsigned long *",
266 * so we arrange a local copy with a short pointer, and use
269 # if __INITIAL_POINTER_SIZE == 64
271 # pragma pointer_size save
272 # pragma pointer_size 32
273 unsigned long arg_32;
274 unsigned long *arg_32p;
275 # pragma pointer_size restore
277 arg_32 = *((unsigned long *)arg);
278 # else /* __INITIAL_POINTER_SIZE == 64 */
280 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
281 # else /* defined(OPENSSL_SYS_VMS) */
283 # endif /* defined(OPENSSL_SYS_VMS) [else] */
285 i = ioctlsocket(fd, type, ARG);
286 # endif /* __DJGPP__ */
288 SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error());
291 # endif /* __VMS_VER */
293 # if OPENSSL_API_COMPAT < 0x10100000L
294 int BIO_get_accept_socket(char *host, int bind_mode)
296 int s = INVALID_SOCKET;
297 char *h = NULL, *p = NULL;
298 BIO_ADDRINFO *res = NULL;
300 if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
301 return INVALID_SOCKET;
303 if (BIO_sock_init() != 1)
304 return INVALID_SOCKET;
306 if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
309 if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
310 BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
315 if (!BIO_listen(s, BIO_ADDRINFO_address(res),
316 bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
322 BIO_ADDRINFO_free(res);
329 int BIO_accept(int sock, char **ip_port)
331 BIO_ADDR *res = BIO_ADDR_new();
335 BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
339 ret = BIO_accept_ex(sock, res, 0);
341 if (ret == (int)INVALID_SOCKET) {
342 if (BIO_sock_should_retry(ret)) {
346 SYSerr(SYS_F_ACCEPT, get_last_socket_error());
347 BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
351 if (ip_port != NULL) {
352 char *host = BIO_ADDR_hostname_string(res, 1);
353 char *port = BIO_ADDR_service_string(res, 1);
354 *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
355 strcpy(*ip_port, host);
356 strcat(*ip_port, ":");
357 strcat(*ip_port, port);
368 int BIO_set_tcp_ndelay(int s, int on)
371 # if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
382 ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
387 int BIO_socket_nbio(int s, int mode)
394 ret = BIO_socket_ioctl(s, FIONBIO, &l);
399 int BIO_sock_info(int sock,
400 enum BIO_sock_info_type type, union BIO_sock_info_u *info)
403 case BIO_SOCK_INFO_ADDRESS:
407 addr_len = sizeof(*info->addr);
408 ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
411 SYSerr(SYS_F_GETSOCKNAME, get_last_socket_error());
412 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
415 if (addr_len > sizeof(*info->addr)) {
416 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
422 BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE);