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d02b48c6 | 1 | /* crypto/bio/b_sock.c */ |
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 | ||
d02b48c6 | 59 | #include <stdio.h> |
58964a49 | 60 | #include <stdlib.h> |
d02b48c6 RE |
61 | #include <errno.h> |
62 | #define USE_SOCKETS | |
63 | #include "cryptlib.h" | |
ec577822 | 64 | #include <openssl/bio.h> |
d02b48c6 | 65 | |
9ba4cc00 RL |
66 | #ifndef OPENSSL_NO_SOCK |
67 | ||
bc36ee62 | 68 | #ifdef OPENSSL_SYS_WIN16 |
d02b48c6 RE |
69 | #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ |
70 | #else | |
71 | #define SOCKET_PROTOCOL IPPROTO_TCP | |
72 | #endif | |
73 | ||
58964a49 | 74 | #ifdef SO_MAXCONN |
58964a49 | 75 | #define MAX_LISTEN SO_MAXCONN |
ddab25a9 RL |
76 | #elif defined(SOMAXCONN) |
77 | #define MAX_LISTEN SOMAXCONN | |
58964a49 RE |
78 | #else |
79 | #define MAX_LISTEN 32 | |
80 | #endif | |
81 | ||
bc36ee62 | 82 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
83 | static int wsa_init_done=0; |
84 | #endif | |
85 | ||
54a656ef | 86 | #if 0 |
58964a49 RE |
87 | static unsigned long BIO_ghbn_hits=0L; |
88 | static unsigned long BIO_ghbn_miss=0L; | |
89 | ||
90 | #define GHBN_NUM 4 | |
91 | static struct ghbn_cache_st | |
92 | { | |
93 | char name[129]; | |
94 | struct hostent *ent; | |
95 | unsigned long order; | |
96 | } ghbn_cache[GHBN_NUM]; | |
54a656ef | 97 | #endif |
d02b48c6 | 98 | |
e778802f | 99 | static int get_ip(const char *str,unsigned char *ip); |
15863658 | 100 | #if 0 |
58964a49 RE |
101 | static void ghbn_free(struct hostent *a); |
102 | static struct hostent *ghbn_dup(struct hostent *a); | |
15863658 | 103 | #endif |
6b691a5c | 104 | int BIO_get_host_ip(const char *str, unsigned char *ip) |
d02b48c6 RE |
105 | { |
106 | int i; | |
ba9f2808 BM |
107 | int err = 1; |
108 | int locked = 0; | |
d02b48c6 RE |
109 | struct hostent *he; |
110 | ||
111 | i=get_ip(str,ip); | |
d02b48c6 RE |
112 | if (i < 0) |
113 | { | |
114 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); | |
ba9f2808 | 115 | goto err; |
d02b48c6 | 116 | } |
d02b48c6 | 117 | |
173e243a RL |
118 | /* At this point, we have something that is most probably correct |
119 | in some way, so let's init the socket. */ | |
8c23788d BM |
120 | if (BIO_sock_init() != 1) |
121 | return 0; /* don't generate another error code here */ | |
d02b48c6 | 122 | |
173e243a RL |
123 | /* If the string actually contained an IP address, we need not do |
124 | anything more */ | |
125 | if (i > 0) return(1); | |
126 | ||
127 | /* do a gethostbyname */ | |
ba9f2808 BM |
128 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
129 | locked = 1; | |
130 | he=BIO_gethostbyname(str); | |
131 | if (he == NULL) | |
132 | { | |
133 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); | |
134 | goto err; | |
d02b48c6 | 135 | } |
ba9f2808 BM |
136 | |
137 | /* cast to short because of win16 winsock definition */ | |
138 | if ((short)he->h_addrtype != AF_INET) | |
139 | { | |
140 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
141 | goto err; | |
142 | } | |
143 | for (i=0; i<4; i++) | |
144 | ip[i]=he->h_addr_list[0][i]; | |
145 | err = 0; | |
146 | ||
147 | err: | |
148 | if (locked) | |
149 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); | |
150 | if (err) | |
151 | { | |
152 | ERR_add_error_data(2,"host=",str); | |
153 | return 0; | |
154 | } | |
155 | else | |
156 | return 1; | |
d02b48c6 RE |
157 | } |
158 | ||
6b691a5c | 159 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
d02b48c6 RE |
160 | { |
161 | int i; | |
162 | struct servent *s; | |
163 | ||
164 | if (str == NULL) | |
165 | { | |
166 | BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); | |
167 | return(0); | |
168 | } | |
169 | i=atoi(str); | |
170 | if (i != 0) | |
171 | *port_ptr=(unsigned short)i; | |
172 | else | |
173 | { | |
2a82c7cf | 174 | CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); |
7256ce6a RL |
175 | /* Note: under VMS with SOCKETSHR, it seems like the first |
176 | * parameter is 'char *', instead of 'const char *' | |
177 | */ | |
9d1a01be UM |
178 | s=getservbyname( |
179 | #ifndef CONST_STRICT | |
180 | (char *) | |
181 | #endif | |
182 | str,"tcp"); | |
2a82c7cf BM |
183 | if(s != NULL) |
184 | *port_ptr=ntohs((unsigned short)s->s_port); | |
185 | CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); | |
186 | if(s == NULL) | |
d02b48c6 RE |
187 | { |
188 | if (strcmp(str,"http") == 0) | |
189 | *port_ptr=80; | |
190 | else if (strcmp(str,"telnet") == 0) | |
191 | *port_ptr=23; | |
192 | else if (strcmp(str,"socks") == 0) | |
193 | *port_ptr=1080; | |
194 | else if (strcmp(str,"https") == 0) | |
195 | *port_ptr=443; | |
196 | else if (strcmp(str,"ssl") == 0) | |
197 | *port_ptr=443; | |
198 | else if (strcmp(str,"ftp") == 0) | |
199 | *port_ptr=21; | |
200 | else if (strcmp(str,"gopher") == 0) | |
201 | *port_ptr=70; | |
202 | #if 0 | |
203 | else if (strcmp(str,"wais") == 0) | |
204 | *port_ptr=21; | |
205 | #endif | |
206 | else | |
207 | { | |
58964a49 RE |
208 | SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); |
209 | ERR_add_error_data(3,"service='",str,"'"); | |
d02b48c6 RE |
210 | return(0); |
211 | } | |
d02b48c6 | 212 | } |
d02b48c6 RE |
213 | } |
214 | return(1); | |
215 | } | |
216 | ||
6b691a5c | 217 | int BIO_sock_error(int sock) |
d02b48c6 | 218 | { |
95dc05bc | 219 | int j,i; |
61f5b6f3 | 220 | int size; |
d02b48c6 RE |
221 | |
222 | size=sizeof(int); | |
a1e464f9 DSH |
223 | /* Note: under Windows the third parameter is of type (char *) |
224 | * whereas under other systems it is (void *) if you don't have | |
225 | * a cast it will choke the compiler: if you do have a cast then | |
226 | * you can either go for (char *) or (void *). | |
227 | */ | |
7d7d2cbc | 228 | i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); |
d02b48c6 RE |
229 | if (i < 0) |
230 | return(1); | |
231 | else | |
232 | return(j); | |
233 | } | |
234 | ||
54a656ef | 235 | #if 0 |
6b691a5c | 236 | long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) |
d02b48c6 | 237 | { |
58964a49 RE |
238 | int i; |
239 | char **p; | |
240 | ||
241 | switch (cmd) | |
242 | { | |
243 | case BIO_GHBN_CTRL_HITS: | |
244 | return(BIO_ghbn_hits); | |
dfeab068 | 245 | /* break; */ |
58964a49 RE |
246 | case BIO_GHBN_CTRL_MISSES: |
247 | return(BIO_ghbn_miss); | |
dfeab068 | 248 | /* break; */ |
58964a49 RE |
249 | case BIO_GHBN_CTRL_CACHE_SIZE: |
250 | return(GHBN_NUM); | |
dfeab068 | 251 | /* break; */ |
58964a49 RE |
252 | case BIO_GHBN_CTRL_GET_ENTRY: |
253 | if ((iarg >= 0) && (iarg <GHBN_NUM) && | |
254 | (ghbn_cache[iarg].order > 0)) | |
255 | { | |
256 | p=(char **)parg; | |
257 | if (p == NULL) return(0); | |
258 | *p=ghbn_cache[iarg].name; | |
259 | ghbn_cache[iarg].name[128]='\0'; | |
260 | return(1); | |
261 | } | |
262 | return(0); | |
dfeab068 | 263 | /* break; */ |
58964a49 RE |
264 | case BIO_GHBN_CTRL_FLUSH: |
265 | for (i=0; i<GHBN_NUM; i++) | |
266 | ghbn_cache[i].order=0; | |
267 | break; | |
268 | default: | |
269 | return(0); | |
270 | } | |
271 | return(1); | |
272 | } | |
54a656ef | 273 | #endif |
58964a49 | 274 | |
15863658 | 275 | #if 0 |
6b691a5c | 276 | static struct hostent *ghbn_dup(struct hostent *a) |
58964a49 RE |
277 | { |
278 | struct hostent *ret; | |
279 | int i,j; | |
280 | ||
dfeab068 | 281 | MemCheck_off(); |
26a3a48d | 282 | ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); |
58964a49 RE |
283 | if (ret == NULL) return(NULL); |
284 | memset(ret,0,sizeof(struct hostent)); | |
285 | ||
286 | for (i=0; a->h_aliases[i] != NULL; i++) | |
287 | ; | |
288 | i++; | |
26a3a48d | 289 | ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
290 | if (ret->h_aliases == NULL) |
291 | goto err; | |
292 | memset(ret->h_aliases, 0, i*sizeof(char *)); | |
58964a49 RE |
293 | |
294 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
295 | ; | |
296 | i++; | |
26a3a48d | 297 | ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
298 | if (ret->h_addr_list == NULL) |
299 | goto err; | |
300 | memset(ret->h_addr_list, 0, i*sizeof(char *)); | |
58964a49 RE |
301 | |
302 | j=strlen(a->h_name)+1; | |
26a3a48d | 303 | if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 304 | memcpy((char *)ret->h_name,a->h_name,j); |
58964a49 RE |
305 | for (i=0; a->h_aliases[i] != NULL; i++) |
306 | { | |
307 | j=strlen(a->h_aliases[i])+1; | |
26a3a48d | 308 | if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 309 | memcpy(ret->h_aliases[i],a->h_aliases[i],j); |
58964a49 RE |
310 | } |
311 | ret->h_length=a->h_length; | |
312 | ret->h_addrtype=a->h_addrtype; | |
313 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
314 | { | |
26a3a48d | 315 | if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) |
58964a49 RE |
316 | goto err; |
317 | memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); | |
318 | } | |
dfeab068 RE |
319 | if (0) |
320 | { | |
58964a49 | 321 | err: |
dfeab068 RE |
322 | if (ret != NULL) |
323 | ghbn_free(ret); | |
324 | ret=NULL; | |
325 | } | |
326 | MemCheck_on(); | |
327 | return(ret); | |
58964a49 RE |
328 | } |
329 | ||
6b691a5c | 330 | static void ghbn_free(struct hostent *a) |
58964a49 RE |
331 | { |
332 | int i; | |
333 | ||
e03ddfae BL |
334 | if(a == NULL) |
335 | return; | |
336 | ||
58964a49 RE |
337 | if (a->h_aliases != NULL) |
338 | { | |
339 | for (i=0; a->h_aliases[i] != NULL; i++) | |
26a3a48d RL |
340 | OPENSSL_free(a->h_aliases[i]); |
341 | OPENSSL_free(a->h_aliases); | |
58964a49 RE |
342 | } |
343 | if (a->h_addr_list != NULL) | |
344 | { | |
345 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
26a3a48d RL |
346 | OPENSSL_free(a->h_addr_list[i]); |
347 | OPENSSL_free(a->h_addr_list); | |
58964a49 | 348 | } |
26a3a48d RL |
349 | if (a->h_name != NULL) OPENSSL_free(a->h_name); |
350 | OPENSSL_free(a); | |
58964a49 | 351 | } |
d02b48c6 | 352 | |
15863658 DSH |
353 | #endif |
354 | ||
6b691a5c | 355 | struct hostent *BIO_gethostbyname(const char *name) |
d02b48c6 | 356 | { |
c602e7f4 BM |
357 | #if 1 |
358 | /* Caching gethostbyname() results forever is wrong, | |
359 | * so we have to let the true gethostbyname() worry about this */ | |
360 | return gethostbyname(name); | |
361 | #else | |
d02b48c6 | 362 | struct hostent *ret; |
58964a49 | 363 | int i,lowi=0,j; |
d02b48c6 RE |
364 | unsigned long low= (unsigned long)-1; |
365 | ||
58964a49 | 366 | |
c602e7f4 BM |
367 | # if 0 |
368 | /* It doesn't make sense to use locking here: The function interface | |
369 | * is not thread-safe, because threads can never be sure when | |
370 | * some other thread destroys the data they were given a pointer to. | |
371 | */ | |
2a82c7cf | 372 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 373 | # endif |
58964a49 RE |
374 | j=strlen(name); |
375 | if (j < 128) | |
d02b48c6 RE |
376 | { |
377 | for (i=0; i<GHBN_NUM; i++) | |
378 | { | |
379 | if (low > ghbn_cache[i].order) | |
380 | { | |
381 | low=ghbn_cache[i].order; | |
382 | lowi=i; | |
383 | } | |
384 | if (ghbn_cache[i].order > 0) | |
385 | { | |
386 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
387 | break; | |
388 | } | |
389 | } | |
390 | } | |
391 | else | |
392 | i=GHBN_NUM; | |
393 | ||
394 | if (i == GHBN_NUM) /* no hit*/ | |
395 | { | |
396 | BIO_ghbn_miss++; | |
7256ce6a RL |
397 | /* Note: under VMS with SOCKETSHR, it seems like the first |
398 | * parameter is 'char *', instead of 'const char *' | |
399 | */ | |
9d1a01be | 400 | ret=gethostbyname( |
c602e7f4 | 401 | # ifndef CONST_STRICT |
9d1a01be | 402 | (char *) |
c602e7f4 | 403 | # endif |
9d1a01be | 404 | name); |
58964a49 | 405 | |
2a82c7cf BM |
406 | if (ret == NULL) |
407 | goto end; | |
408 | if (j > 128) /* too big to cache */ | |
409 | { | |
c602e7f4 BM |
410 | # if 0 |
411 | /* If we were trying to make this function thread-safe (which | |
412 | * is bound to fail), we'd have to give up in this case | |
413 | * (or allocate more memory). */ | |
2a82c7cf | 414 | ret = NULL; |
c602e7f4 | 415 | # endif |
2a82c7cf BM |
416 | goto end; |
417 | } | |
58964a49 | 418 | |
d02b48c6 | 419 | /* else add to cache */ |
58964a49 | 420 | if (ghbn_cache[lowi].ent != NULL) |
64a3b11b | 421 | ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ |
2a82c7cf | 422 | ghbn_cache[lowi].name[0] = '\0'; |
58964a49 | 423 | |
2a82c7cf BM |
424 | if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) |
425 | { | |
426 | BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); | |
427 | goto end; | |
428 | } | |
d02b48c6 | 429 | strncpy(ghbn_cache[lowi].name,name,128); |
d02b48c6 RE |
430 | ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; |
431 | } | |
432 | else | |
433 | { | |
434 | BIO_ghbn_hits++; | |
58964a49 | 435 | ret= ghbn_cache[i].ent; |
d02b48c6 RE |
436 | ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; |
437 | } | |
2a82c7cf | 438 | end: |
c602e7f4 | 439 | # if 0 |
2a82c7cf | 440 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 441 | # endif |
d02b48c6 | 442 | return(ret); |
c602e7f4 | 443 | #endif |
d02b48c6 RE |
444 | } |
445 | ||
c602e7f4 | 446 | |
6b691a5c | 447 | int BIO_sock_init(void) |
d02b48c6 | 448 | { |
bc36ee62 | 449 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
450 | static struct WSAData wsa_state; |
451 | ||
452 | if (!wsa_init_done) | |
453 | { | |
454 | int err; | |
455 | ||
456 | #ifdef SIGINT | |
457 | signal(SIGINT,(void (*)(int))BIO_sock_cleanup); | |
458 | #endif | |
459 | wsa_init_done=1; | |
460 | memset(&wsa_state,0,sizeof(wsa_state)); | |
461 | if (WSAStartup(0x0101,&wsa_state)!=0) | |
462 | { | |
463 | err=WSAGetLastError(); | |
464 | SYSerr(SYS_F_WSASTARTUP,err); | |
465 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
466 | return(-1); | |
467 | } | |
468 | } | |
bc36ee62 | 469 | #endif /* OPENSSL_SYS_WINDOWS */ |
8d6e6048 RL |
470 | #ifdef WATT32 |
471 | extern int _watt_do_exit; | |
472 | _watt_do_exit = 0; /* don't make sock_init() call exit() */ | |
473 | if (sock_init()) | |
474 | return (-1); | |
475 | #endif | |
d02b48c6 RE |
476 | return(1); |
477 | } | |
478 | ||
6b691a5c | 479 | void BIO_sock_cleanup(void) |
d02b48c6 | 480 | { |
bc36ee62 | 481 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
482 | if (wsa_init_done) |
483 | { | |
484 | wsa_init_done=0; | |
0bf23d9b | 485 | #ifndef OPENSSL_SYS_WINCE |
d02b48c6 | 486 | WSACancelBlockingCall(); |
0bf23d9b | 487 | #endif |
d02b48c6 RE |
488 | WSACleanup(); |
489 | } | |
490 | #endif | |
491 | } | |
492 | ||
bc36ee62 | 493 | #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 |
7d7d2cbc | 494 | |
c029841e | 495 | int BIO_socket_ioctl(int fd, long type, void *arg) |
d02b48c6 | 496 | { |
58964a49 | 497 | int i; |
d02b48c6 | 498 | |
451dc18f RL |
499 | #ifdef __DJGPP__ |
500 | i=ioctlsocket(fd,type,(char *)arg); | |
501 | #else | |
d02b48c6 | 502 | i=ioctlsocket(fd,type,arg); |
451dc18f | 503 | #endif /* __DJGPP__ */ |
d02b48c6 | 504 | if (i < 0) |
58964a49 | 505 | SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); |
d02b48c6 RE |
506 | return(i); |
507 | } | |
7d7d2cbc | 508 | #endif /* __VMS_VER */ |
d02b48c6 RE |
509 | |
510 | /* The reason I have implemented this instead of using sscanf is because | |
511 | * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ | |
6b691a5c | 512 | static int get_ip(const char *str, unsigned char ip[4]) |
d02b48c6 RE |
513 | { |
514 | unsigned int tmp[4]; | |
515 | int num=0,c,ok=0; | |
516 | ||
517 | tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; | |
518 | ||
519 | for (;;) | |
520 | { | |
521 | c= *(str++); | |
522 | if ((c >= '0') && (c <= '9')) | |
523 | { | |
524 | ok=1; | |
525 | tmp[num]=tmp[num]*10+c-'0'; | |
b1460627 | 526 | if (tmp[num] > 255) return(0); |
d02b48c6 RE |
527 | } |
528 | else if (c == '.') | |
529 | { | |
530 | if (!ok) return(-1); | |
b1460627 | 531 | if (num == 3) return(0); |
d02b48c6 RE |
532 | num++; |
533 | ok=0; | |
534 | } | |
b1460627 | 535 | else if (c == '\0' && (num == 3) && ok) |
d02b48c6 RE |
536 | break; |
537 | else | |
538 | return(0); | |
539 | } | |
540 | ip[0]=tmp[0]; | |
541 | ip[1]=tmp[1]; | |
542 | ip[2]=tmp[2]; | |
543 | ip[3]=tmp[3]; | |
544 | return(1); | |
545 | } | |
546 | ||
6b691a5c | 547 | int BIO_get_accept_socket(char *host, int bind_mode) |
d02b48c6 RE |
548 | { |
549 | int ret=0; | |
dfeab068 | 550 | struct sockaddr_in server,client; |
e24e4065 | 551 | int s=INVALID_SOCKET,cs; |
d02b48c6 | 552 | unsigned char ip[4]; |
def9f431 | 553 | unsigned short port; |
e24e4065 | 554 | char *str=NULL,*e; |
e778802f | 555 | const char *h,*p; |
d02b48c6 | 556 | unsigned long l; |
dfeab068 | 557 | int err_num; |
d02b48c6 | 558 | |
8c23788d | 559 | if (BIO_sock_init() != 1) return(INVALID_SOCKET); |
d02b48c6 RE |
560 | |
561 | if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); | |
562 | ||
563 | h=p=NULL; | |
564 | h=str; | |
565 | for (e=str; *e; e++) | |
566 | { | |
567 | if (*e == ':') | |
568 | { | |
569 | p= &(e[1]); | |
570 | *e='\0'; | |
571 | } | |
572 | else if (*e == '/') | |
573 | { | |
574 | *e='\0'; | |
575 | break; | |
576 | } | |
577 | } | |
578 | ||
579 | if (p == NULL) | |
580 | { | |
581 | p=h; | |
582 | h="*"; | |
583 | } | |
584 | ||
e24e4065 | 585 | if (!BIO_get_port(p,&port)) goto err; |
d02b48c6 RE |
586 | |
587 | memset((char *)&server,0,sizeof(server)); | |
588 | server.sin_family=AF_INET; | |
def9f431 | 589 | server.sin_port=htons(port); |
d02b48c6 RE |
590 | |
591 | if (strcmp(h,"*") == 0) | |
592 | server.sin_addr.s_addr=INADDR_ANY; | |
593 | else | |
594 | { | |
e24e4065 | 595 | if (!BIO_get_host_ip(h,&(ip[0]))) goto err; |
d02b48c6 RE |
596 | l=(unsigned long) |
597 | ((unsigned long)ip[0]<<24L)| | |
dfeab068 RE |
598 | ((unsigned long)ip[1]<<16L)| |
599 | ((unsigned long)ip[2]<< 8L)| | |
600 | ((unsigned long)ip[3]); | |
d02b48c6 RE |
601 | server.sin_addr.s_addr=htonl(l); |
602 | } | |
603 | ||
dfeab068 | 604 | again: |
d02b48c6 RE |
605 | s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); |
606 | if (s == INVALID_SOCKET) | |
607 | { | |
58964a49 RE |
608 | SYSerr(SYS_F_SOCKET,get_last_socket_error()); |
609 | ERR_add_error_data(3,"port='",host,"'"); | |
610 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); | |
d02b48c6 RE |
611 | goto err; |
612 | } | |
dfeab068 RE |
613 | |
614 | #ifdef SO_REUSEADDR | |
615 | if (bind_mode == BIO_BIND_REUSEADDR) | |
616 | { | |
617 | int i=1; | |
618 | ||
619 | ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); | |
620 | bind_mode=BIO_BIND_NORMAL; | |
621 | } | |
622 | #endif | |
d02b48c6 RE |
623 | if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) |
624 | { | |
dfeab068 RE |
625 | #ifdef SO_REUSEADDR |
626 | err_num=get_last_socket_error(); | |
627 | if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && | |
628 | (err_num == EADDRINUSE)) | |
629 | { | |
630 | memcpy((char *)&client,(char *)&server,sizeof(server)); | |
631 | if (strcmp(h,"*") == 0) | |
632 | client.sin_addr.s_addr=htonl(0x7F000001); | |
633 | cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); | |
634 | if (cs != INVALID_SOCKET) | |
635 | { | |
636 | int ii; | |
637 | ii=connect(cs,(struct sockaddr *)&client, | |
638 | sizeof(client)); | |
639 | closesocket(cs); | |
640 | if (ii == INVALID_SOCKET) | |
641 | { | |
642 | bind_mode=BIO_BIND_REUSEADDR; | |
643 | closesocket(s); | |
644 | goto again; | |
645 | } | |
646 | /* else error */ | |
647 | } | |
648 | /* else error */ | |
649 | } | |
650 | #endif | |
651 | SYSerr(SYS_F_BIND,err_num); | |
58964a49 | 652 | ERR_add_error_data(3,"port='",host,"'"); |
d02b48c6 RE |
653 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); |
654 | goto err; | |
655 | } | |
58964a49 | 656 | if (listen(s,MAX_LISTEN) == -1) |
d02b48c6 | 657 | { |
58964a49 RE |
658 | SYSerr(SYS_F_BIND,get_last_socket_error()); |
659 | ERR_add_error_data(3,"port='",host,"'"); | |
d02b48c6 RE |
660 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); |
661 | goto err; | |
662 | } | |
663 | ret=1; | |
664 | err: | |
26a3a48d | 665 | if (str != NULL) OPENSSL_free(str); |
d02b48c6 RE |
666 | if ((ret == 0) && (s != INVALID_SOCKET)) |
667 | { | |
d02b48c6 | 668 | closesocket(s); |
d02b48c6 RE |
669 | s= INVALID_SOCKET; |
670 | } | |
671 | return(s); | |
672 | } | |
673 | ||
6b691a5c | 674 | int BIO_accept(int sock, char **addr) |
d02b48c6 RE |
675 | { |
676 | int ret=INVALID_SOCKET; | |
677 | static struct sockaddr_in from; | |
678 | unsigned long l; | |
def9f431 | 679 | unsigned short port; |
61f5b6f3 | 680 | int len; |
d02b48c6 RE |
681 | char *p; |
682 | ||
683 | memset((char *)&from,0,sizeof(from)); | |
684 | len=sizeof(from); | |
75e0770d | 685 | /* Note: under VMS with SOCKETSHR the fourth parameter is currently |
7d7d2cbc UM |
686 | * of type (int *) whereas under other systems it is (void *) if |
687 | * you don't have a cast it will choke the compiler: if you do | |
688 | * have a cast then you can either go for (int *) or (void *). | |
689 | */ | |
690 | ret=accept(sock,(struct sockaddr *)&from,(void *)&len); | |
d02b48c6 RE |
691 | if (ret == INVALID_SOCKET) |
692 | { | |
924046ce | 693 | if(BIO_sock_should_retry(ret)) return -2; |
58964a49 | 694 | SYSerr(SYS_F_ACCEPT,get_last_socket_error()); |
d02b48c6 RE |
695 | BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); |
696 | goto end; | |
697 | } | |
698 | ||
699 | if (addr == NULL) goto end; | |
700 | ||
701 | l=ntohl(from.sin_addr.s_addr); | |
702 | port=ntohs(from.sin_port); | |
703 | if (*addr == NULL) | |
704 | { | |
26a3a48d | 705 | if ((p=OPENSSL_malloc(24)) == NULL) |
d02b48c6 RE |
706 | { |
707 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
708 | goto end; | |
709 | } | |
710 | *addr=p; | |
711 | } | |
712 | sprintf(*addr,"%d.%d.%d.%d:%d", | |
713 | (unsigned char)(l>>24L)&0xff, | |
714 | (unsigned char)(l>>16L)&0xff, | |
715 | (unsigned char)(l>> 8L)&0xff, | |
716 | (unsigned char)(l )&0xff, | |
717 | port); | |
718 | end: | |
719 | return(ret); | |
720 | } | |
721 | ||
6b691a5c | 722 | int BIO_set_tcp_ndelay(int s, int on) |
d02b48c6 RE |
723 | { |
724 | int ret=0; | |
725 | #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
726 | int opt; | |
727 | ||
728 | #ifdef SOL_TCP | |
729 | opt=SOL_TCP; | |
730 | #else | |
731 | #ifdef IPPROTO_TCP | |
732 | opt=IPPROTO_TCP; | |
733 | #endif | |
734 | #endif | |
735 | ||
736 | ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); | |
737 | #endif | |
738 | return(ret == 0); | |
739 | } | |
740 | #endif | |
741 | ||
6b691a5c | 742 | int BIO_socket_nbio(int s, int mode) |
dfeab068 RE |
743 | { |
744 | int ret= -1; | |
c029841e | 745 | int l; |
dfeab068 RE |
746 | |
747 | l=mode; | |
748 | #ifdef FIONBIO | |
749 | ret=BIO_socket_ioctl(s,FIONBIO,&l); | |
750 | #endif | |
751 | return(ret == 0); | |
752 | } |