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Commit | Line | Data |
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863fe2ec | 1 | /* apps/s_socket.c - socket-related functions used by s_client and s_server */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
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. | |
8 | * | |
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). | |
15 | * | |
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. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
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)" | |
40 | * | |
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 | |
51 | * SUCH DAMAGE. | |
52 | * | |
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.] | |
57 | */ | |
58 | ||
8c197cc5 UM |
59 | #include <stdio.h> |
60 | #include <stdlib.h> | |
61 | #include <string.h> | |
62 | #include <errno.h> | |
63 | #include <signal.h> | |
64 | ||
f49353b4 | 65 | #ifdef FLAT_INC |
82f35daa | 66 | #include "e_os2.h" |
f49353b4 | 67 | #else |
82f35daa | 68 | #include "../e_os2.h" |
f49353b4 RL |
69 | #endif |
70 | ||
7d7d2cbc UM |
71 | /* With IPv6, it looks like Digital has mixed up the proper order of |
72 | recursive header file inclusion, resulting in the compiler complaining | |
73 | that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which | |
74 | is needed to have fileno() declared correctly... So let's define u_int */ | |
bc36ee62 | 75 | #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) |
7d7d2cbc UM |
76 | #define __U_INT |
77 | typedef unsigned int u_int; | |
78 | #endif | |
79 | ||
02cc82ff RL |
80 | #define USE_SOCKETS |
81 | #define NON_MAIN | |
82 | #include "apps.h" | |
83 | #undef USE_SOCKETS | |
84 | #undef NON_MAIN | |
85 | #include "s_apps.h" | |
86 | #include <openssl/ssl.h> | |
87 | ||
82f35daa RL |
88 | #ifdef FLAT_INC |
89 | #include "e_os.h" | |
90 | #else | |
91 | #include "../e_os.h" | |
92 | #endif | |
93 | ||
4579924b RL |
94 | #ifndef OPENSSL_NO_SOCK |
95 | ||
b764ab95 RL |
96 | #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) |
97 | #include "netdb.h" | |
98 | #endif | |
99 | ||
d02b48c6 | 100 | static struct hostent *GetHostByName(char *name); |
b764ab95 | 101 | #if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) |
8d6e6048 | 102 | static void ssl_sock_cleanup(void); |
cc497fb0 | 103 | #endif |
8d6e6048 | 104 | static int ssl_sock_init(void); |
36d16f8e BL |
105 | static int init_client_ip(int *sock,unsigned char ip[4], int port, int type); |
106 | static int init_server(int *sock, int port, int type); | |
107 | static int init_server_long(int *sock, int port,char *ip, int type); | |
863fe2ec BM |
108 | static int do_accept(int acc_sock, int *sock, char **host); |
109 | static int host_ip(char *str, unsigned char ip[4]); | |
110 | ||
bc36ee62 | 111 | #ifdef OPENSSL_SYS_WIN16 |
d02b48c6 RE |
112 | #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ |
113 | #else | |
114 | #define SOCKET_PROTOCOL IPPROTO_TCP | |
115 | #endif | |
116 | ||
b764ab95 | 117 | #if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
118 | static int wsa_init_done=0; |
119 | #endif | |
120 | ||
bc36ee62 | 121 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
122 | static struct WSAData wsa_state; |
123 | static int wsa_init_done=0; | |
124 | ||
bc36ee62 | 125 | #ifdef OPENSSL_SYS_WIN16 |
d02b48c6 RE |
126 | static HWND topWnd=0; |
127 | static FARPROC lpTopWndProc=NULL; | |
128 | static FARPROC lpTopHookProc=NULL; | |
129 | extern HINSTANCE _hInstance; /* nice global CRT provides */ | |
130 | ||
6b691a5c UM |
131 | static LONG FAR PASCAL topHookProc(HWND hwnd, UINT message, WPARAM wParam, |
132 | LPARAM lParam) | |
d02b48c6 RE |
133 | { |
134 | if (hwnd == topWnd) | |
135 | { | |
136 | switch(message) | |
137 | { | |
138 | case WM_DESTROY: | |
139 | case WM_CLOSE: | |
140 | SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopWndProc); | |
8d6e6048 | 141 | ssl_sock_cleanup(); |
d02b48c6 RE |
142 | break; |
143 | } | |
144 | } | |
145 | return CallWindowProc(lpTopWndProc,hwnd,message,wParam,lParam); | |
146 | } | |
147 | ||
148 | static BOOL CALLBACK enumproc(HWND hwnd,LPARAM lParam) | |
149 | { | |
150 | topWnd=hwnd; | |
151 | return(FALSE); | |
152 | } | |
153 | ||
bc36ee62 RL |
154 | #endif /* OPENSSL_SYS_WIN32 */ |
155 | #endif /* OPENSSL_SYS_WINDOWS */ | |
d02b48c6 | 156 | |
bc36ee62 | 157 | #ifdef OPENSSL_SYS_WINDOWS |
8d6e6048 | 158 | static void ssl_sock_cleanup(void) |
d02b48c6 | 159 | { |
d02b48c6 RE |
160 | if (wsa_init_done) |
161 | { | |
162 | wsa_init_done=0; | |
0bf23d9b | 163 | #ifndef OPENSSL_SYS_WINCE |
d02b48c6 | 164 | WSACancelBlockingCall(); |
0bf23d9b | 165 | #endif |
d02b48c6 RE |
166 | WSACleanup(); |
167 | } | |
d02b48c6 | 168 | } |
b764ab95 | 169 | #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
170 | static void sock_cleanup(void) |
171 | { | |
172 | if (wsa_init_done) | |
173 | { | |
174 | wsa_init_done=0; | |
175 | WSACleanup(); | |
176 | } | |
177 | } | |
cc497fb0 | 178 | #endif |
d02b48c6 | 179 | |
8d6e6048 | 180 | static int ssl_sock_init(void) |
d02b48c6 | 181 | { |
8d6e6048 RL |
182 | #ifdef WATT32 |
183 | extern int _watt_do_exit; | |
184 | _watt_do_exit = 0; | |
8d6e6048 RL |
185 | if (sock_init()) |
186 | return (0); | |
187 | #elif defined(OPENSSL_SYS_WINDOWS) | |
d02b48c6 RE |
188 | if (!wsa_init_done) |
189 | { | |
190 | int err; | |
191 | ||
192 | #ifdef SIGINT | |
8d6e6048 | 193 | signal(SIGINT,(void (*)(int))ssl_sock_cleanup); |
d02b48c6 RE |
194 | #endif |
195 | wsa_init_done=1; | |
196 | memset(&wsa_state,0,sizeof(wsa_state)); | |
197 | if (WSAStartup(0x0101,&wsa_state)!=0) | |
198 | { | |
199 | err=WSAGetLastError(); | |
200 | BIO_printf(bio_err,"unable to start WINSOCK, error code=%d\n",err); | |
201 | return(0); | |
202 | } | |
203 | ||
bc36ee62 | 204 | #ifdef OPENSSL_SYS_WIN16 |
d02b48c6 RE |
205 | EnumTaskWindows(GetCurrentTask(),enumproc,0L); |
206 | lpTopWndProc=(FARPROC)GetWindowLong(topWnd,GWL_WNDPROC); | |
207 | lpTopHookProc=MakeProcInstance((FARPROC)topHookProc,_hInstance); | |
208 | ||
209 | SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopHookProc); | |
bc36ee62 | 210 | #endif /* OPENSSL_SYS_WIN16 */ |
d02b48c6 | 211 | } |
b764ab95 | 212 | #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
213 | WORD wVerReq; |
214 | WSADATA wsaData; | |
215 | int err; | |
216 | ||
217 | if (!wsa_init_done) | |
218 | { | |
219 | ||
220 | # ifdef SIGINT | |
221 | signal(SIGINT,(void (*)(int))sock_cleanup); | |
222 | # endif | |
223 | ||
224 | wsa_init_done=1; | |
225 | wVerReq = MAKEWORD( 2, 0 ); | |
226 | err = WSAStartup(wVerReq,&wsaData); | |
227 | if (err != 0) | |
228 | { | |
229 | BIO_printf(bio_err,"unable to start WINSOCK2, error code=%d\n",err); | |
230 | return(0); | |
231 | } | |
232 | } | |
bc36ee62 | 233 | #endif /* OPENSSL_SYS_WINDOWS */ |
d02b48c6 RE |
234 | return(1); |
235 | } | |
236 | ||
36d16f8e | 237 | int init_client(int *sock, char *host, int port, int type) |
d02b48c6 RE |
238 | { |
239 | unsigned char ip[4]; | |
d02b48c6 | 240 | |
825e1a7c | 241 | memset(ip, '\0', sizeof ip); |
d02b48c6 | 242 | if (!host_ip(host,&(ip[0]))) |
825e1a7c BL |
243 | return 0; |
244 | return init_client_ip(sock,ip,port,type); | |
d02b48c6 RE |
245 | } |
246 | ||
36d16f8e | 247 | static int init_client_ip(int *sock, unsigned char ip[4], int port, int type) |
d02b48c6 RE |
248 | { |
249 | unsigned long addr; | |
250 | struct sockaddr_in them; | |
251 | int s,i; | |
252 | ||
8d6e6048 | 253 | if (!ssl_sock_init()) return(0); |
d02b48c6 RE |
254 | |
255 | memset((char *)&them,0,sizeof(them)); | |
256 | them.sin_family=AF_INET; | |
257 | them.sin_port=htons((unsigned short)port); | |
258 | addr=(unsigned long) | |
259 | ((unsigned long)ip[0]<<24L)| | |
260 | ((unsigned long)ip[1]<<16L)| | |
261 | ((unsigned long)ip[2]<< 8L)| | |
262 | ((unsigned long)ip[3]); | |
263 | them.sin_addr.s_addr=htonl(addr); | |
264 | ||
36d16f8e BL |
265 | if (type == SOCK_STREAM) |
266 | s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); | |
267 | else /* ( type == SOCK_DGRAM) */ | |
268 | s=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP); | |
269 | ||
d02b48c6 RE |
270 | if (s == INVALID_SOCKET) { perror("socket"); return(0); } |
271 | ||
36e77b10 | 272 | #if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE) |
36d16f8e BL |
273 | if (type == SOCK_STREAM) |
274 | { | |
275 | i=0; | |
276 | i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i)); | |
f179e2b8 | 277 | if (i < 0) { closesocket(s); perror("keepalive"); return(0); } |
36d16f8e | 278 | } |
c5f8bbbc | 279 | #endif |
d02b48c6 RE |
280 | |
281 | if (connect(s,(struct sockaddr *)&them,sizeof(them)) == -1) | |
36e77b10 | 282 | { closesocket(s); perror("connect"); return(0); } |
d02b48c6 RE |
283 | *sock=s; |
284 | return(1); | |
285 | } | |
286 | ||
6343829a | 287 | int do_server(int port, int type, int *ret, int (*cb)(char *hostname, int s, unsigned char *context), unsigned char *context) |
d02b48c6 RE |
288 | { |
289 | int sock; | |
36d16f8e | 290 | char *name = NULL; |
224328e4 | 291 | int accept_socket = 0; |
d02b48c6 RE |
292 | int i; |
293 | ||
36d16f8e | 294 | if (!init_server(&accept_socket,port,type)) return(0); |
d02b48c6 RE |
295 | |
296 | if (ret != NULL) | |
297 | { | |
298 | *ret=accept_socket; | |
299 | /* return(1);*/ | |
300 | } | |
36d16f8e BL |
301 | for (;;) |
302 | { | |
303 | if (type==SOCK_STREAM) | |
d02b48c6 | 304 | { |
36d16f8e BL |
305 | if (do_accept(accept_socket,&sock,&name) == 0) |
306 | { | |
307 | SHUTDOWN(accept_socket); | |
308 | return(0); | |
309 | } | |
d02b48c6 | 310 | } |
36d16f8e BL |
311 | else |
312 | sock = accept_socket; | |
313 | i=(*cb)(name,sock, context); | |
26a3a48d | 314 | if (name != NULL) OPENSSL_free(name); |
36d16f8e BL |
315 | if (type==SOCK_STREAM) |
316 | SHUTDOWN2(sock); | |
d02b48c6 RE |
317 | if (i < 0) |
318 | { | |
58964a49 | 319 | SHUTDOWN2(accept_socket); |
d02b48c6 RE |
320 | return(i); |
321 | } | |
322 | } | |
323 | } | |
324 | ||
36d16f8e | 325 | static int init_server_long(int *sock, int port, char *ip, int type) |
d02b48c6 RE |
326 | { |
327 | int ret=0; | |
328 | struct sockaddr_in server; | |
e9735943 | 329 | int s= -1; |
d02b48c6 | 330 | |
8d6e6048 | 331 | if (!ssl_sock_init()) return(0); |
d02b48c6 RE |
332 | |
333 | memset((char *)&server,0,sizeof(server)); | |
334 | server.sin_family=AF_INET; | |
335 | server.sin_port=htons((unsigned short)port); | |
58964a49 RE |
336 | if (ip == NULL) |
337 | server.sin_addr.s_addr=INADDR_ANY; | |
338 | else | |
13e91dd3 RE |
339 | /* Added for T3E, address-of fails on bit field (beckman@acl.lanl.gov) */ |
340 | #ifndef BIT_FIELD_LIMITS | |
58964a49 | 341 | memcpy(&server.sin_addr.s_addr,ip,4); |
13e91dd3 RE |
342 | #else |
343 | memcpy(&server.sin_addr,ip,4); | |
344 | #endif | |
36d16f8e BL |
345 | |
346 | if (type == SOCK_STREAM) | |
347 | s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); | |
348 | else /* type == SOCK_DGRAM */ | |
349 | s=socket(AF_INET, SOCK_DGRAM,IPPROTO_UDP); | |
d02b48c6 RE |
350 | |
351 | if (s == INVALID_SOCKET) goto err; | |
cf897932 BM |
352 | #if defined SOL_SOCKET && defined SO_REUSEADDR |
353 | { | |
121bd68d | 354 | int j = 1; |
f0f1b4e4 | 355 | setsockopt(s, SOL_SOCKET, SO_REUSEADDR, |
7d7d2cbc | 356 | (void *) &j, sizeof j); |
cf897932 BM |
357 | } |
358 | #endif | |
d02b48c6 RE |
359 | if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) |
360 | { | |
bc36ee62 | 361 | #ifndef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
362 | perror("bind"); |
363 | #endif | |
364 | goto err; | |
365 | } | |
58964a49 | 366 | /* Make it 128 for linux */ |
36d16f8e | 367 | if (type==SOCK_STREAM && listen(s,128) == -1) goto err; |
d02b48c6 RE |
368 | *sock=s; |
369 | ret=1; | |
370 | err: | |
371 | if ((ret == 0) && (s != -1)) | |
372 | { | |
373 | SHUTDOWN(s); | |
374 | } | |
375 | return(ret); | |
376 | } | |
377 | ||
36d16f8e | 378 | static int init_server(int *sock, int port, int type) |
58964a49 | 379 | { |
36d16f8e | 380 | return(init_server_long(sock, port, NULL, type)); |
58964a49 RE |
381 | } |
382 | ||
863fe2ec | 383 | static int do_accept(int acc_sock, int *sock, char **host) |
d02b48c6 | 384 | { |
e9735943 | 385 | int ret; |
d02b48c6 RE |
386 | struct hostent *h1,*h2; |
387 | static struct sockaddr_in from; | |
61f5b6f3 | 388 | int len; |
d02b48c6 RE |
389 | /* struct linger ling; */ |
390 | ||
8d6e6048 | 391 | if (!ssl_sock_init()) return(0); |
d02b48c6 | 392 | |
bc36ee62 | 393 | #ifndef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
394 | redoit: |
395 | #endif | |
396 | ||
397 | memset((char *)&from,0,sizeof(from)); | |
398 | len=sizeof(from); | |
75e0770d | 399 | /* Note: under VMS with SOCKETSHR the fourth parameter is currently |
7d7d2cbc UM |
400 | * of type (int *) whereas under other systems it is (void *) if |
401 | * you don't have a cast it will choke the compiler: if you do | |
402 | * have a cast then you can either go for (int *) or (void *). | |
403 | */ | |
404 | ret=accept(acc_sock,(struct sockaddr *)&from,(void *)&len); | |
d02b48c6 RE |
405 | if (ret == INVALID_SOCKET) |
406 | { | |
b764ab95 | 407 | #if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) |
497b4f92 | 408 | int i; |
d02b48c6 RE |
409 | i=WSAGetLastError(); |
410 | BIO_printf(bio_err,"accept error %d\n",i); | |
411 | #else | |
412 | if (errno == EINTR) | |
413 | { | |
414 | /*check_timeout(); */ | |
415 | goto redoit; | |
416 | } | |
417 | fprintf(stderr,"errno=%d ",errno); | |
418 | perror("accept"); | |
419 | #endif | |
420 | return(0); | |
421 | } | |
422 | ||
3e9a08ec | 423 | /*- |
d02b48c6 RE |
424 | ling.l_onoff=1; |
425 | ling.l_linger=0; | |
426 | i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling)); | |
427 | if (i < 0) { perror("linger"); return(0); } | |
428 | i=0; | |
429 | i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i)); | |
430 | if (i < 0) { perror("keepalive"); return(0); } | |
431 | */ | |
432 | ||
433 | if (host == NULL) goto end; | |
58964a49 | 434 | #ifndef BIT_FIELD_LIMITS |
d02b48c6 RE |
435 | /* I should use WSAAsyncGetHostByName() under windows */ |
436 | h1=gethostbyaddr((char *)&from.sin_addr.s_addr, | |
437 | sizeof(from.sin_addr.s_addr),AF_INET); | |
58964a49 RE |
438 | #else |
439 | h1=gethostbyaddr((char *)&from.sin_addr, | |
440 | sizeof(struct in_addr),AF_INET); | |
441 | #endif | |
d02b48c6 RE |
442 | if (h1 == NULL) |
443 | { | |
444 | BIO_printf(bio_err,"bad gethostbyaddr\n"); | |
445 | *host=NULL; | |
446 | /* return(0); */ | |
447 | } | |
448 | else | |
449 | { | |
26a3a48d | 450 | if ((*host=(char *)OPENSSL_malloc(strlen(h1->h_name)+1)) == NULL) |
d02b48c6 | 451 | { |
26a3a48d | 452 | perror("OPENSSL_malloc"); |
9e456a85 | 453 | closesocket(ret); |
d02b48c6 RE |
454 | return(0); |
455 | } | |
d420ac2c | 456 | BUF_strlcpy(*host,h1->h_name,strlen(h1->h_name)+1); |
d02b48c6 RE |
457 | |
458 | h2=GetHostByName(*host); | |
459 | if (h2 == NULL) | |
460 | { | |
461 | BIO_printf(bio_err,"gethostbyname failure\n"); | |
9e456a85 | 462 | closesocket(ret); |
d02b48c6 RE |
463 | return(0); |
464 | } | |
d02b48c6 RE |
465 | if (h2->h_addrtype != AF_INET) |
466 | { | |
467 | BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n"); | |
9e456a85 | 468 | closesocket(ret); |
d02b48c6 RE |
469 | return(0); |
470 | } | |
471 | } | |
472 | end: | |
473 | *sock=ret; | |
474 | return(1); | |
475 | } | |
476 | ||
6b691a5c UM |
477 | int extract_host_port(char *str, char **host_ptr, unsigned char *ip, |
478 | short *port_ptr) | |
d02b48c6 RE |
479 | { |
480 | char *h,*p; | |
481 | ||
482 | h=str; | |
483 | p=strchr(str,':'); | |
484 | if (p == NULL) | |
485 | { | |
486 | BIO_printf(bio_err,"no port defined\n"); | |
487 | return(0); | |
488 | } | |
489 | *(p++)='\0'; | |
490 | ||
491 | if ((ip != NULL) && !host_ip(str,ip)) | |
492 | goto err; | |
493 | if (host_ptr != NULL) *host_ptr=h; | |
494 | ||
495 | if (!extract_port(p,port_ptr)) | |
496 | goto err; | |
497 | return(1); | |
498 | err: | |
499 | return(0); | |
500 | } | |
501 | ||
863fe2ec | 502 | static int host_ip(char *str, unsigned char ip[4]) |
d02b48c6 RE |
503 | { |
504 | unsigned int in[4]; | |
505 | int i; | |
506 | ||
d58d092b | 507 | if (sscanf(str,"%u.%u.%u.%u",&(in[0]),&(in[1]),&(in[2]),&(in[3])) == 4) |
d02b48c6 RE |
508 | { |
509 | for (i=0; i<4; i++) | |
510 | if (in[i] > 255) | |
511 | { | |
512 | BIO_printf(bio_err,"invalid IP address\n"); | |
513 | goto err; | |
514 | } | |
515 | ip[0]=in[0]; | |
516 | ip[1]=in[1]; | |
517 | ip[2]=in[2]; | |
518 | ip[3]=in[3]; | |
519 | } | |
520 | else | |
521 | { /* do a gethostbyname */ | |
522 | struct hostent *he; | |
523 | ||
8d6e6048 | 524 | if (!ssl_sock_init()) return(0); |
d02b48c6 RE |
525 | |
526 | he=GetHostByName(str); | |
527 | if (he == NULL) | |
528 | { | |
529 | BIO_printf(bio_err,"gethostbyname failure\n"); | |
530 | goto err; | |
531 | } | |
532 | /* cast to short because of win16 winsock definition */ | |
533 | if ((short)he->h_addrtype != AF_INET) | |
534 | { | |
535 | BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n"); | |
536 | return(0); | |
537 | } | |
538 | ip[0]=he->h_addr_list[0][0]; | |
539 | ip[1]=he->h_addr_list[0][1]; | |
540 | ip[2]=he->h_addr_list[0][2]; | |
541 | ip[3]=he->h_addr_list[0][3]; | |
542 | } | |
543 | return(1); | |
544 | err: | |
545 | return(0); | |
546 | } | |
547 | ||
6b691a5c | 548 | int extract_port(char *str, short *port_ptr) |
d02b48c6 RE |
549 | { |
550 | int i; | |
551 | struct servent *s; | |
552 | ||
553 | i=atoi(str); | |
554 | if (i != 0) | |
555 | *port_ptr=(unsigned short)i; | |
556 | else | |
557 | { | |
558 | s=getservbyname(str,"tcp"); | |
559 | if (s == NULL) | |
560 | { | |
561 | BIO_printf(bio_err,"getservbyname failure for %s\n",str); | |
562 | return(0); | |
563 | } | |
564 | *port_ptr=ntohs((unsigned short)s->s_port); | |
565 | } | |
566 | return(1); | |
567 | } | |
568 | ||
569 | #define GHBN_NUM 4 | |
570 | static struct ghbn_cache_st | |
571 | { | |
572 | char name[128]; | |
573 | struct hostent ent; | |
574 | unsigned long order; | |
575 | } ghbn_cache[GHBN_NUM]; | |
576 | ||
577 | static unsigned long ghbn_hits=0L; | |
578 | static unsigned long ghbn_miss=0L; | |
579 | ||
6b691a5c | 580 | static struct hostent *GetHostByName(char *name) |
d02b48c6 RE |
581 | { |
582 | struct hostent *ret; | |
583 | int i,lowi=0; | |
584 | unsigned long low= (unsigned long)-1; | |
585 | ||
586 | for (i=0; i<GHBN_NUM; i++) | |
587 | { | |
588 | if (low > ghbn_cache[i].order) | |
589 | { | |
590 | low=ghbn_cache[i].order; | |
591 | lowi=i; | |
592 | } | |
593 | if (ghbn_cache[i].order > 0) | |
594 | { | |
595 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
596 | break; | |
597 | } | |
598 | } | |
599 | if (i == GHBN_NUM) /* no hit*/ | |
600 | { | |
601 | ghbn_miss++; | |
602 | ret=gethostbyname(name); | |
603 | if (ret == NULL) return(NULL); | |
604 | /* else add to cache */ | |
54a656ef BL |
605 | if(strlen(name) < sizeof ghbn_cache[0].name) |
606 | { | |
607 | strcpy(ghbn_cache[lowi].name,name); | |
608 | memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent)); | |
609 | ghbn_cache[lowi].order=ghbn_miss+ghbn_hits; | |
610 | } | |
d02b48c6 RE |
611 | return(ret); |
612 | } | |
613 | else | |
614 | { | |
615 | ghbn_hits++; | |
616 | ret= &(ghbn_cache[i].ent); | |
617 | ghbn_cache[i].order=ghbn_miss+ghbn_hits; | |
618 | return(ret); | |
619 | } | |
620 | } | |
19aa3705 RL |
621 | |
622 | #endif |