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Commit | Line | Data |
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10621efd MC |
1 | /* |
2 | * apps/s_socket.c - socket-related functions used by s_client and s_server | |
3 | */ | |
58964a49 | 4 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
5 | * All rights reserved. |
6 | * | |
7 | * This package is an SSL implementation written | |
8 | * by Eric Young (eay@cryptsoft.com). | |
9 | * The implementation was written so as to conform with Netscapes SSL. | |
10621efd | 10 | * |
d02b48c6 RE |
11 | * This library is free for commercial and non-commercial use as long as |
12 | * the following conditions are aheared to. The following conditions | |
13 | * apply to all code found in this distribution, be it the RC4, RSA, | |
14 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
15 | * included with this distribution is covered by the same copyright terms | |
16 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
10621efd | 17 | * |
d02b48c6 RE |
18 | * Copyright remains Eric Young's, and as such any Copyright notices in |
19 | * the code are not to be removed. | |
20 | * If this package is used in a product, Eric Young should be given attribution | |
21 | * as the author of the parts of the library used. | |
22 | * This can be in the form of a textual message at program startup or | |
23 | * in documentation (online or textual) provided with the package. | |
10621efd | 24 | * |
d02b48c6 RE |
25 | * Redistribution and use in source and binary forms, with or without |
26 | * modification, are permitted provided that the following conditions | |
27 | * are met: | |
28 | * 1. Redistributions of source code must retain the copyright | |
29 | * notice, this list of conditions and the following disclaimer. | |
30 | * 2. Redistributions in binary form must reproduce the above copyright | |
31 | * notice, this list of conditions and the following disclaimer in the | |
32 | * documentation and/or other materials provided with the distribution. | |
33 | * 3. All advertising materials mentioning features or use of this software | |
34 | * must display the following acknowledgement: | |
35 | * "This product includes cryptographic software written by | |
36 | * Eric Young (eay@cryptsoft.com)" | |
37 | * The word 'cryptographic' can be left out if the rouines from the library | |
38 | * being used are not cryptographic related :-). | |
10621efd | 39 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
40 | * the apps directory (application code) you must include an acknowledgement: |
41 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
10621efd | 42 | * |
d02b48c6 RE |
43 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
44 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
45 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
46 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
47 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
48 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
49 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
50 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
51 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
52 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
53 | * SUCH DAMAGE. | |
10621efd | 54 | * |
d02b48c6 RE |
55 | * The licence and distribution terms for any publically available version or |
56 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
57 | * copied and put under another distribution licence | |
58 | * [including the GNU Public Licence.] | |
59 | */ | |
60 | ||
8c197cc5 UM |
61 | #include <stdio.h> |
62 | #include <stdlib.h> | |
63 | #include <string.h> | |
64 | #include <errno.h> | |
65 | #include <signal.h> | |
66 | ||
f49353b4 | 67 | #ifdef FLAT_INC |
10621efd | 68 | # include "e_os2.h" |
f49353b4 | 69 | #else |
10621efd | 70 | # include "../e_os2.h" |
f49353b4 RL |
71 | #endif |
72 | ||
10621efd MC |
73 | /* |
74 | * With IPv6, it looks like Digital has mixed up the proper order of | |
75 | * recursive header file inclusion, resulting in the compiler complaining | |
76 | * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is | |
77 | * needed to have fileno() declared correctly... So let's define u_int | |
78 | */ | |
bc36ee62 | 79 | #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) |
10621efd | 80 | # define __U_INT |
7d7d2cbc UM |
81 | typedef unsigned int u_int; |
82 | #endif | |
83 | ||
02cc82ff RL |
84 | #define USE_SOCKETS |
85 | #define NON_MAIN | |
86 | #include "apps.h" | |
87 | #undef USE_SOCKETS | |
88 | #undef NON_MAIN | |
89 | #include "s_apps.h" | |
90 | #include <openssl/ssl.h> | |
91 | ||
82f35daa | 92 | #ifdef FLAT_INC |
10621efd | 93 | # include "e_os.h" |
82f35daa | 94 | #else |
10621efd | 95 | # include "../e_os.h" |
82f35daa RL |
96 | #endif |
97 | ||
4579924b RL |
98 | #ifndef OPENSSL_NO_SOCK |
99 | ||
10621efd MC |
100 | # if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) |
101 | # include "netdb.h" | |
102 | # endif | |
b764ab95 | 103 | |
d02b48c6 | 104 | static struct hostent *GetHostByName(char *name); |
10621efd | 105 | # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) |
8d6e6048 | 106 | static void ssl_sock_cleanup(void); |
10621efd | 107 | # endif |
8d6e6048 | 108 | static int ssl_sock_init(void); |
10621efd | 109 | static int init_client_ip(int *sock, unsigned char ip[4], int port, int type); |
36d16f8e | 110 | static int init_server(int *sock, int port, int type); |
10621efd | 111 | static int init_server_long(int *sock, int port, char *ip, int type); |
863fe2ec BM |
112 | static int do_accept(int acc_sock, int *sock, char **host); |
113 | static int host_ip(char *str, unsigned char ip[4]); | |
114 | ||
10621efd MC |
115 | # ifdef OPENSSL_SYS_WIN16 |
116 | # define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ | |
117 | # else | |
118 | # define SOCKET_PROTOCOL IPPROTO_TCP | |
119 | # endif | |
d02b48c6 | 120 | |
10621efd MC |
121 | # if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
122 | static int wsa_init_done = 0; | |
123 | # endif | |
4d8743f4 | 124 | |
10621efd | 125 | # ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 | 126 | static struct WSAData wsa_state; |
10621efd | 127 | static int wsa_init_done = 0; |
d02b48c6 | 128 | |
10621efd MC |
129 | # ifdef OPENSSL_SYS_WIN16 |
130 | static HWND topWnd = 0; | |
131 | static FARPROC lpTopWndProc = NULL; | |
132 | static FARPROC lpTopHookProc = NULL; | |
133 | extern HINSTANCE _hInstance; /* nice global CRT provides */ | |
d02b48c6 | 134 | |
6b691a5c | 135 | static LONG FAR PASCAL topHookProc(HWND hwnd, UINT message, WPARAM wParam, |
10621efd MC |
136 | LPARAM lParam) |
137 | { | |
138 | if (hwnd == topWnd) { | |
139 | switch (message) { | |
140 | case WM_DESTROY: | |
141 | case WM_CLOSE: | |
142 | SetWindowLong(topWnd, GWL_WNDPROC, (LONG) lpTopWndProc); | |
143 | ssl_sock_cleanup(); | |
144 | break; | |
145 | } | |
146 | } | |
147 | return CallWindowProc(lpTopWndProc, hwnd, message, wParam, lParam); | |
148 | } | |
149 | ||
150 | static BOOL CALLBACK enumproc(HWND hwnd, LPARAM lParam) | |
151 | { | |
152 | topWnd = hwnd; | |
153 | return (FALSE); | |
154 | } | |
155 | ||
156 | # endif /* OPENSSL_SYS_WIN32 */ | |
157 | # endif /* OPENSSL_SYS_WINDOWS */ | |
158 | ||
159 | # ifdef OPENSSL_SYS_WINDOWS | |
8d6e6048 | 160 | static void ssl_sock_cleanup(void) |
10621efd MC |
161 | { |
162 | if (wsa_init_done) { | |
163 | wsa_init_done = 0; | |
164 | # ifndef OPENSSL_SYS_WINCE | |
165 | WSACancelBlockingCall(); | |
166 | # endif | |
167 | WSACleanup(); | |
168 | } | |
169 | } | |
170 | # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) | |
4d8743f4 | 171 | static void sock_cleanup(void) |
10621efd MC |
172 | { |
173 | if (wsa_init_done) { | |
174 | wsa_init_done = 0; | |
175 | WSACleanup(); | |
176 | } | |
177 | } | |
4d8743f4 RL |
178 | # endif |
179 | ||
10621efd MC |
180 | static int ssl_sock_init(void) |
181 | { | |
182 | # ifdef WATT32 | |
183 | extern int _watt_do_exit; | |
184 | _watt_do_exit = 0; | |
185 | if (sock_init()) | |
186 | return (0); | |
187 | # elif defined(OPENSSL_SYS_WINDOWS) | |
188 | if (!wsa_init_done) { | |
189 | int err; | |
190 | ||
191 | # ifdef SIGINT | |
192 | signal(SIGINT, (void (*)(int))ssl_sock_cleanup); | |
193 | # endif | |
194 | wsa_init_done = 1; | |
195 | memset(&wsa_state, 0, sizeof(wsa_state)); | |
196 | if (WSAStartup(0x0101, &wsa_state) != 0) { | |
197 | err = WSAGetLastError(); | |
198 | BIO_printf(bio_err, "unable to start WINSOCK, error code=%d\n", | |
199 | err); | |
200 | return (0); | |
201 | } | |
202 | # ifdef OPENSSL_SYS_WIN16 | |
203 | EnumTaskWindows(GetCurrentTask(), enumproc, 0L); | |
204 | lpTopWndProc = (FARPROC) GetWindowLong(topWnd, GWL_WNDPROC); | |
205 | lpTopHookProc = MakeProcInstance((FARPROC) topHookProc, _hInstance); | |
206 | ||
207 | SetWindowLong(topWnd, GWL_WNDPROC, (LONG) lpTopHookProc); | |
208 | # endif /* OPENSSL_SYS_WIN16 */ | |
209 | } | |
210 | # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) | |
211 | WORD wVerReq; | |
212 | WSADATA wsaData; | |
213 | int err; | |
214 | ||
215 | if (!wsa_init_done) { | |
216 | ||
217 | # ifdef SIGINT | |
218 | signal(SIGINT, (void (*)(int))sock_cleanup); | |
219 | # endif | |
220 | ||
221 | wsa_init_done = 1; | |
222 | wVerReq = MAKEWORD(2, 0); | |
223 | err = WSAStartup(wVerReq, &wsaData); | |
224 | if (err != 0) { | |
225 | BIO_printf(bio_err, "unable to start WINSOCK2, error code=%d\n", | |
226 | err); | |
227 | return (0); | |
228 | } | |
229 | } | |
230 | # endif /* OPENSSL_SYS_WINDOWS */ | |
231 | return (1); | |
232 | } | |
d02b48c6 | 233 | |
36d16f8e | 234 | int init_client(int *sock, char *host, int port, int type) |
10621efd MC |
235 | { |
236 | unsigned char ip[4]; | |
d02b48c6 | 237 | |
10621efd MC |
238 | memset(ip, '\0', sizeof ip); |
239 | if (!host_ip(host, &(ip[0]))) | |
240 | return 0; | |
241 | return init_client_ip(sock, ip, port, type); | |
242 | } | |
d02b48c6 | 243 | |
36d16f8e | 244 | static int init_client_ip(int *sock, unsigned char ip[4], int port, int type) |
10621efd MC |
245 | { |
246 | unsigned long addr; | |
247 | struct sockaddr_in them; | |
248 | int s, i; | |
249 | ||
250 | if (!ssl_sock_init()) | |
251 | return (0); | |
252 | ||
253 | memset((char *)&them, 0, sizeof(them)); | |
254 | them.sin_family = AF_INET; | |
255 | them.sin_port = htons((unsigned short)port); | |
256 | addr = (unsigned long) | |
257 | ((unsigned long)ip[0] << 24L) | | |
258 | ((unsigned long)ip[1] << 16L) | | |
259 | ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]); | |
260 | them.sin_addr.s_addr = htonl(addr); | |
261 | ||
262 | if (type == SOCK_STREAM) | |
263 | s = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL); | |
264 | else /* ( type == SOCK_DGRAM) */ | |
265 | s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | |
266 | ||
267 | if (s == INVALID_SOCKET) { | |
268 | perror("socket"); | |
269 | return (0); | |
270 | } | |
271 | # if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE) | |
272 | if (type == SOCK_STREAM) { | |
273 | i = 0; | |
274 | i = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (char *)&i, sizeof(i)); | |
275 | if (i < 0) { | |
276 | closesocket(s); | |
277 | perror("keepalive"); | |
278 | return (0); | |
279 | } | |
280 | } | |
281 | # endif | |
d02b48c6 | 282 | |
10621efd MC |
283 | if (connect(s, (struct sockaddr *)&them, sizeof(them)) == -1) { |
284 | closesocket(s); | |
285 | perror("connect"); | |
286 | return (0); | |
287 | } | |
288 | *sock = s; | |
289 | return (1); | |
290 | } | |
291 | ||
292 | int do_server(int port, int type, int *ret, | |
293 | int (*cb) (char *hostname, int s, unsigned char *context), | |
294 | unsigned char *context) | |
295 | { | |
296 | int sock; | |
297 | char *name = NULL; | |
298 | int accept_socket = 0; | |
299 | int i; | |
300 | ||
301 | if (!init_server(&accept_socket, port, type)) | |
302 | return (0); | |
303 | ||
304 | if (ret != NULL) { | |
305 | *ret = accept_socket; | |
306 | /* return(1); */ | |
307 | } | |
308 | for (;;) { | |
309 | if (type == SOCK_STREAM) { | |
310 | if (do_accept(accept_socket, &sock, &name) == 0) { | |
311 | SHUTDOWN(accept_socket); | |
312 | return (0); | |
313 | } | |
314 | } else | |
315 | sock = accept_socket; | |
316 | i = (*cb) (name, sock, context); | |
317 | if (name != NULL) | |
318 | OPENSSL_free(name); | |
319 | if (type == SOCK_STREAM) | |
320 | SHUTDOWN2(sock); | |
321 | if (i < 0) { | |
322 | SHUTDOWN2(accept_socket); | |
323 | return (i); | |
324 | } | |
325 | } | |
326 | } | |
d02b48c6 | 327 | |
36d16f8e | 328 | static int init_server_long(int *sock, int port, char *ip, int type) |
10621efd MC |
329 | { |
330 | int ret = 0; | |
331 | struct sockaddr_in server; | |
332 | int s = -1; | |
333 | ||
334 | if (!ssl_sock_init()) | |
335 | return (0); | |
336 | ||
337 | memset((char *)&server, 0, sizeof(server)); | |
338 | server.sin_family = AF_INET; | |
339 | server.sin_port = htons((unsigned short)port); | |
340 | if (ip == NULL) | |
341 | server.sin_addr.s_addr = INADDR_ANY; | |
342 | else | |
13e91dd3 | 343 | /* Added for T3E, address-of fails on bit field (beckman@acl.lanl.gov) */ |
10621efd MC |
344 | # ifndef BIT_FIELD_LIMITS |
345 | memcpy(&server.sin_addr.s_addr, ip, 4); | |
346 | # else | |
347 | memcpy(&server.sin_addr, ip, 4); | |
348 | # endif | |
d02b48c6 | 349 | |
10621efd MC |
350 | if (type == SOCK_STREAM) |
351 | s = socket(AF_INET, SOCK_STREAM, SOCKET_PROTOCOL); | |
352 | else /* type == SOCK_DGRAM */ | |
353 | s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | |
58964a49 | 354 | |
10621efd MC |
355 | if (s == INVALID_SOCKET) |
356 | goto err; | |
357 | # if defined SOL_SOCKET && defined SO_REUSEADDR | |
358 | { | |
359 | int j = 1; | |
360 | setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *)&j, sizeof j); | |
361 | } | |
362 | # endif | |
363 | if (bind(s, (struct sockaddr *)&server, sizeof(server)) == -1) { | |
364 | # ifndef OPENSSL_SYS_WINDOWS | |
365 | perror("bind"); | |
366 | # endif | |
367 | goto err; | |
368 | } | |
369 | /* Make it 128 for linux */ | |
370 | if (type == SOCK_STREAM && listen(s, 128) == -1) | |
371 | goto err; | |
372 | *sock = s; | |
373 | ret = 1; | |
374 | err: | |
375 | if ((ret == 0) && (s != -1)) { | |
376 | SHUTDOWN(s); | |
377 | } | |
378 | return (ret); | |
379 | } | |
d02b48c6 | 380 | |
10621efd MC |
381 | static int init_server(int *sock, int port, int type) |
382 | { | |
383 | return (init_server_long(sock, port, NULL, type)); | |
384 | } | |
d02b48c6 | 385 | |
10621efd MC |
386 | static int do_accept(int acc_sock, int *sock, char **host) |
387 | { | |
388 | int ret; | |
389 | struct hostent *h1, *h2; | |
390 | static struct sockaddr_in from; | |
391 | int len; | |
392 | /* struct linger ling; */ | |
393 | ||
394 | if (!ssl_sock_init()) | |
395 | return (0); | |
396 | ||
397 | # ifndef OPENSSL_SYS_WINDOWS | |
398 | redoit: | |
399 | # endif | |
d02b48c6 | 400 | |
10621efd MC |
401 | memset((char *)&from, 0, sizeof(from)); |
402 | len = sizeof(from); | |
403 | /* | |
404 | * Note: under VMS with SOCKETSHR the fourth parameter is currently of | |
405 | * type (int *) whereas under other systems it is (void *) if you don't | |
406 | * have a cast it will choke the compiler: if you do have a cast then you | |
407 | * can either go for (int *) or (void *). | |
408 | */ | |
409 | ret = accept(acc_sock, (struct sockaddr *)&from, (void *)&len); | |
410 | if (ret == INVALID_SOCKET) { | |
411 | # if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) | |
412 | int i; | |
413 | i = WSAGetLastError(); | |
414 | BIO_printf(bio_err, "accept error %d\n", i); | |
415 | # else | |
416 | if (errno == EINTR) { | |
417 | /* | |
418 | * check_timeout(); | |
419 | */ | |
420 | goto redoit; | |
421 | } | |
422 | fprintf(stderr, "errno=%d ", errno); | |
423 | perror("accept"); | |
424 | # endif | |
425 | return (0); | |
426 | } | |
d02b48c6 | 427 | |
3e9a08ec | 428 | /*- |
cda8845d MC |
429 | ling.l_onoff=1; |
430 | ling.l_linger=0; | |
431 | i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling)); | |
432 | if (i < 0) { perror("linger"); return(0); } | |
433 | i=0; | |
434 | i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i)); | |
435 | if (i < 0) { perror("keepalive"); return(0); } | |
d02b48c6 RE |
436 | */ |
437 | ||
10621efd MC |
438 | if (host == NULL) |
439 | goto end; | |
440 | # ifndef BIT_FIELD_LIMITS | |
441 | /* I should use WSAAsyncGetHostByName() under windows */ | |
442 | h1 = gethostbyaddr((char *)&from.sin_addr.s_addr, | |
443 | sizeof(from.sin_addr.s_addr), AF_INET); | |
444 | # else | |
445 | h1 = gethostbyaddr((char *)&from.sin_addr, | |
446 | sizeof(struct in_addr), AF_INET); | |
447 | # endif | |
448 | if (h1 == NULL) { | |
449 | BIO_printf(bio_err, "bad gethostbyaddr\n"); | |
450 | *host = NULL; | |
451 | /* return(0); */ | |
452 | } else { | |
453 | if ((*host = (char *)OPENSSL_malloc(strlen(h1->h_name) + 1)) == NULL) { | |
454 | perror("OPENSSL_malloc"); | |
455 | closesocket(ret); | |
456 | return (0); | |
457 | } | |
458 | BUF_strlcpy(*host, h1->h_name, strlen(h1->h_name) + 1); | |
459 | ||
460 | h2 = GetHostByName(*host); | |
461 | if (h2 == NULL) { | |
462 | BIO_printf(bio_err, "gethostbyname failure\n"); | |
463 | closesocket(ret); | |
464 | return (0); | |
465 | } | |
466 | if (h2->h_addrtype != AF_INET) { | |
467 | BIO_printf(bio_err, "gethostbyname addr is not AF_INET\n"); | |
468 | closesocket(ret); | |
469 | return (0); | |
470 | } | |
471 | } | |
472 | end: | |
473 | *sock = ret; | |
474 | return (1); | |
475 | } | |
d02b48c6 | 476 | |
6b691a5c | 477 | int extract_host_port(char *str, char **host_ptr, unsigned char *ip, |
10621efd MC |
478 | short *port_ptr) |
479 | { | |
480 | char *h, *p; | |
481 | ||
482 | h = str; | |
483 | p = strchr(str, ':'); | |
484 | if (p == NULL) { | |
485 | BIO_printf(bio_err, "no port defined\n"); | |
486 | return (0); | |
487 | } | |
488 | *(p++) = '\0'; | |
489 | ||
490 | if ((ip != NULL) && !host_ip(str, ip)) | |
491 | goto err; | |
492 | if (host_ptr != NULL) | |
493 | *host_ptr = h; | |
494 | ||
495 | if (!extract_port(p, port_ptr)) | |
496 | goto err; | |
497 | return (1); | |
498 | err: | |
499 | return (0); | |
500 | } | |
d02b48c6 | 501 | |
863fe2ec | 502 | static int host_ip(char *str, unsigned char ip[4]) |
10621efd MC |
503 | { |
504 | unsigned int in[4]; | |
505 | int i; | |
506 | ||
507 | if (sscanf(str, "%u.%u.%u.%u", &(in[0]), &(in[1]), &(in[2]), &(in[3])) == | |
508 | 4) { | |
509 | for (i = 0; i < 4; i++) | |
510 | if (in[i] > 255) { | |
511 | BIO_printf(bio_err, "invalid IP address\n"); | |
512 | goto err; | |
513 | } | |
514 | ip[0] = in[0]; | |
515 | ip[1] = in[1]; | |
516 | ip[2] = in[2]; | |
517 | ip[3] = in[3]; | |
518 | } else { /* do a gethostbyname */ | |
519 | struct hostent *he; | |
520 | ||
521 | if (!ssl_sock_init()) | |
522 | return (0); | |
523 | ||
524 | he = GetHostByName(str); | |
525 | if (he == NULL) { | |
526 | BIO_printf(bio_err, "gethostbyname failure\n"); | |
527 | goto err; | |
528 | } | |
529 | /* cast to short because of win16 winsock definition */ | |
530 | if ((short)he->h_addrtype != AF_INET) { | |
531 | BIO_printf(bio_err, "gethostbyname addr is not AF_INET\n"); | |
532 | return (0); | |
533 | } | |
534 | ip[0] = he->h_addr_list[0][0]; | |
535 | ip[1] = he->h_addr_list[0][1]; | |
536 | ip[2] = he->h_addr_list[0][2]; | |
537 | ip[3] = he->h_addr_list[0][3]; | |
538 | } | |
539 | return (1); | |
540 | err: | |
541 | return (0); | |
542 | } | |
d02b48c6 | 543 | |
6b691a5c | 544 | int extract_port(char *str, short *port_ptr) |
10621efd MC |
545 | { |
546 | int i; | |
547 | struct servent *s; | |
548 | ||
549 | i = atoi(str); | |
550 | if (i != 0) | |
551 | *port_ptr = (unsigned short)i; | |
552 | else { | |
553 | s = getservbyname(str, "tcp"); | |
554 | if (s == NULL) { | |
555 | BIO_printf(bio_err, "getservbyname failure for %s\n", str); | |
556 | return (0); | |
557 | } | |
558 | *port_ptr = ntohs((unsigned short)s->s_port); | |
559 | } | |
560 | return (1); | |
561 | } | |
562 | ||
563 | # define GHBN_NUM 4 | |
564 | static struct ghbn_cache_st { | |
565 | char name[128]; | |
566 | struct hostent ent; | |
567 | unsigned long order; | |
568 | } ghbn_cache[GHBN_NUM]; | |
569 | ||
570 | static unsigned long ghbn_hits = 0L; | |
571 | static unsigned long ghbn_miss = 0L; | |
d02b48c6 | 572 | |
6b691a5c | 573 | static struct hostent *GetHostByName(char *name) |
10621efd MC |
574 | { |
575 | struct hostent *ret; | |
576 | int i, lowi = 0; | |
577 | unsigned long low = (unsigned long)-1; | |
578 | ||
579 | for (i = 0; i < GHBN_NUM; i++) { | |
580 | if (low > ghbn_cache[i].order) { | |
581 | low = ghbn_cache[i].order; | |
582 | lowi = i; | |
583 | } | |
584 | if (ghbn_cache[i].order > 0) { | |
585 | if (strncmp(name, ghbn_cache[i].name, 128) == 0) | |
586 | break; | |
587 | } | |
588 | } | |
589 | if (i == GHBN_NUM) { /* no hit */ | |
590 | ghbn_miss++; | |
591 | ret = gethostbyname(name); | |
592 | if (ret == NULL) | |
593 | return (NULL); | |
594 | /* else add to cache */ | |
595 | if (strlen(name) < sizeof ghbn_cache[0].name) { | |
596 | strcpy(ghbn_cache[lowi].name, name); | |
597 | memcpy((char *)&(ghbn_cache[lowi].ent), ret, | |
598 | sizeof(struct hostent)); | |
599 | ghbn_cache[lowi].order = ghbn_miss + ghbn_hits; | |
600 | } | |
601 | return (ret); | |
602 | } else { | |
603 | ghbn_hits++; | |
604 | ret = &(ghbn_cache[i].ent); | |
605 | ghbn_cache[i].order = ghbn_miss + ghbn_hits; | |
606 | return (ret); | |
607 | } | |
608 | } | |
19aa3705 RL |
609 | |
610 | #endif |