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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> |
b764ab95 | 65 | #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) |
eef0c1f3 DSH |
66 | #include <netdb.h> |
67 | #if defined(NETWARE_CLIB) | |
68 | #include <sys/ioctl.h> | |
69 | NETDB_DEFINE_CONTEXT | |
70 | #endif | |
b764ab95 | 71 | #endif |
d02b48c6 | 72 | |
9ba4cc00 RL |
73 | #ifndef OPENSSL_NO_SOCK |
74 | ||
481d81cb AP |
75 | #include <openssl/dso.h> |
76 | ||
d02b48c6 | 77 | #define SOCKET_PROTOCOL IPPROTO_TCP |
d02b48c6 | 78 | |
58964a49 | 79 | #ifdef SO_MAXCONN |
58964a49 | 80 | #define MAX_LISTEN SO_MAXCONN |
ddab25a9 RL |
81 | #elif defined(SOMAXCONN) |
82 | #define MAX_LISTEN SOMAXCONN | |
58964a49 RE |
83 | #else |
84 | #define MAX_LISTEN 32 | |
85 | #endif | |
86 | ||
b764ab95 | 87 | #if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) |
d02b48c6 RE |
88 | static int wsa_init_done=0; |
89 | #endif | |
90 | ||
5448e673 AP |
91 | /* |
92 | * WSAAPI specifier is required to make indirect calls to run-time | |
93 | * linked WinSock 2 functions used in this module, to be specific | |
94 | * [get|free]addrinfo and getnameinfo. This is because WinSock uses | |
95 | * uses non-C calling convention, __stdcall vs. __cdecl, on x86 | |
96 | * Windows. On non-WinSock platforms WSAAPI needs to be void. | |
97 | */ | |
98 | #ifndef WSAAPI | |
99 | #define WSAAPI | |
100 | #endif | |
101 | ||
54a656ef | 102 | #if 0 |
58964a49 RE |
103 | static unsigned long BIO_ghbn_hits=0L; |
104 | static unsigned long BIO_ghbn_miss=0L; | |
105 | ||
106 | #define GHBN_NUM 4 | |
107 | static struct ghbn_cache_st | |
108 | { | |
109 | char name[129]; | |
110 | struct hostent *ent; | |
111 | unsigned long order; | |
112 | } ghbn_cache[GHBN_NUM]; | |
54a656ef | 113 | #endif |
d02b48c6 | 114 | |
e778802f | 115 | static int get_ip(const char *str,unsigned char *ip); |
15863658 | 116 | #if 0 |
58964a49 RE |
117 | static void ghbn_free(struct hostent *a); |
118 | static struct hostent *ghbn_dup(struct hostent *a); | |
15863658 | 119 | #endif |
6b691a5c | 120 | int BIO_get_host_ip(const char *str, unsigned char *ip) |
d02b48c6 RE |
121 | { |
122 | int i; | |
ba9f2808 BM |
123 | int err = 1; |
124 | int locked = 0; | |
d02b48c6 RE |
125 | struct hostent *he; |
126 | ||
127 | i=get_ip(str,ip); | |
d02b48c6 RE |
128 | if (i < 0) |
129 | { | |
130 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); | |
ba9f2808 | 131 | goto err; |
d02b48c6 | 132 | } |
d02b48c6 | 133 | |
173e243a RL |
134 | /* At this point, we have something that is most probably correct |
135 | in some way, so let's init the socket. */ | |
8c23788d BM |
136 | if (BIO_sock_init() != 1) |
137 | return 0; /* don't generate another error code here */ | |
d02b48c6 | 138 | |
173e243a RL |
139 | /* If the string actually contained an IP address, we need not do |
140 | anything more */ | |
141 | if (i > 0) return(1); | |
142 | ||
143 | /* do a gethostbyname */ | |
ba9f2808 BM |
144 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
145 | locked = 1; | |
146 | he=BIO_gethostbyname(str); | |
147 | if (he == NULL) | |
148 | { | |
149 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); | |
150 | goto err; | |
d02b48c6 | 151 | } |
ba9f2808 BM |
152 | |
153 | /* cast to short because of win16 winsock definition */ | |
154 | if ((short)he->h_addrtype != AF_INET) | |
155 | { | |
156 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
157 | goto err; | |
158 | } | |
159 | for (i=0; i<4; i++) | |
160 | ip[i]=he->h_addr_list[0][i]; | |
161 | err = 0; | |
162 | ||
163 | err: | |
164 | if (locked) | |
165 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); | |
166 | if (err) | |
167 | { | |
168 | ERR_add_error_data(2,"host=",str); | |
169 | return 0; | |
170 | } | |
171 | else | |
172 | return 1; | |
d02b48c6 RE |
173 | } |
174 | ||
6b691a5c | 175 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
d02b48c6 RE |
176 | { |
177 | int i; | |
178 | struct servent *s; | |
179 | ||
180 | if (str == NULL) | |
181 | { | |
182 | BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); | |
183 | return(0); | |
184 | } | |
185 | i=atoi(str); | |
186 | if (i != 0) | |
187 | *port_ptr=(unsigned short)i; | |
188 | else | |
189 | { | |
2a82c7cf | 190 | CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); |
7256ce6a RL |
191 | /* Note: under VMS with SOCKETSHR, it seems like the first |
192 | * parameter is 'char *', instead of 'const char *' | |
193 | */ | |
9d1a01be | 194 | #ifndef CONST_STRICT |
eef0c1f3 DSH |
195 | s=getservbyname((char *)str,"tcp"); |
196 | #else | |
197 | s=getservbyname(str,"tcp"); | |
9d1a01be | 198 | #endif |
2a82c7cf BM |
199 | if(s != NULL) |
200 | *port_ptr=ntohs((unsigned short)s->s_port); | |
201 | CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); | |
202 | if(s == NULL) | |
d02b48c6 RE |
203 | { |
204 | if (strcmp(str,"http") == 0) | |
205 | *port_ptr=80; | |
206 | else if (strcmp(str,"telnet") == 0) | |
207 | *port_ptr=23; | |
208 | else if (strcmp(str,"socks") == 0) | |
209 | *port_ptr=1080; | |
210 | else if (strcmp(str,"https") == 0) | |
211 | *port_ptr=443; | |
212 | else if (strcmp(str,"ssl") == 0) | |
213 | *port_ptr=443; | |
214 | else if (strcmp(str,"ftp") == 0) | |
215 | *port_ptr=21; | |
216 | else if (strcmp(str,"gopher") == 0) | |
217 | *port_ptr=70; | |
218 | #if 0 | |
219 | else if (strcmp(str,"wais") == 0) | |
220 | *port_ptr=21; | |
221 | #endif | |
222 | else | |
223 | { | |
58964a49 RE |
224 | SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); |
225 | ERR_add_error_data(3,"service='",str,"'"); | |
d02b48c6 RE |
226 | return(0); |
227 | } | |
d02b48c6 | 228 | } |
d02b48c6 RE |
229 | } |
230 | return(1); | |
231 | } | |
232 | ||
6b691a5c | 233 | int BIO_sock_error(int sock) |
d02b48c6 | 234 | { |
95dc05bc | 235 | int j,i; |
61f5b6f3 | 236 | int size; |
d02b48c6 | 237 | |
4700aea9 UM |
238 | #if defined(OPENSSL_SYS_BEOS_R5) |
239 | return 0; | |
240 | #endif | |
241 | ||
d02b48c6 | 242 | size=sizeof(int); |
a1e464f9 DSH |
243 | /* Note: under Windows the third parameter is of type (char *) |
244 | * whereas under other systems it is (void *) if you don't have | |
245 | * a cast it will choke the compiler: if you do have a cast then | |
246 | * you can either go for (char *) or (void *). | |
247 | */ | |
7d7d2cbc | 248 | i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); |
d02b48c6 RE |
249 | if (i < 0) |
250 | return(1); | |
251 | else | |
252 | return(j); | |
253 | } | |
254 | ||
54a656ef | 255 | #if 0 |
6b691a5c | 256 | long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) |
d02b48c6 | 257 | { |
58964a49 RE |
258 | int i; |
259 | char **p; | |
260 | ||
261 | switch (cmd) | |
262 | { | |
263 | case BIO_GHBN_CTRL_HITS: | |
264 | return(BIO_ghbn_hits); | |
dfeab068 | 265 | /* break; */ |
58964a49 RE |
266 | case BIO_GHBN_CTRL_MISSES: |
267 | return(BIO_ghbn_miss); | |
dfeab068 | 268 | /* break; */ |
58964a49 RE |
269 | case BIO_GHBN_CTRL_CACHE_SIZE: |
270 | return(GHBN_NUM); | |
dfeab068 | 271 | /* break; */ |
58964a49 RE |
272 | case BIO_GHBN_CTRL_GET_ENTRY: |
273 | if ((iarg >= 0) && (iarg <GHBN_NUM) && | |
274 | (ghbn_cache[iarg].order > 0)) | |
275 | { | |
276 | p=(char **)parg; | |
277 | if (p == NULL) return(0); | |
278 | *p=ghbn_cache[iarg].name; | |
279 | ghbn_cache[iarg].name[128]='\0'; | |
280 | return(1); | |
281 | } | |
282 | return(0); | |
dfeab068 | 283 | /* break; */ |
58964a49 RE |
284 | case BIO_GHBN_CTRL_FLUSH: |
285 | for (i=0; i<GHBN_NUM; i++) | |
286 | ghbn_cache[i].order=0; | |
287 | break; | |
288 | default: | |
289 | return(0); | |
290 | } | |
291 | return(1); | |
292 | } | |
54a656ef | 293 | #endif |
58964a49 | 294 | |
15863658 | 295 | #if 0 |
6b691a5c | 296 | static struct hostent *ghbn_dup(struct hostent *a) |
58964a49 RE |
297 | { |
298 | struct hostent *ret; | |
299 | int i,j; | |
300 | ||
dfeab068 | 301 | MemCheck_off(); |
26a3a48d | 302 | ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); |
58964a49 RE |
303 | if (ret == NULL) return(NULL); |
304 | memset(ret,0,sizeof(struct hostent)); | |
305 | ||
306 | for (i=0; a->h_aliases[i] != NULL; i++) | |
307 | ; | |
308 | i++; | |
26a3a48d | 309 | ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
310 | if (ret->h_aliases == NULL) |
311 | goto err; | |
312 | memset(ret->h_aliases, 0, i*sizeof(char *)); | |
58964a49 RE |
313 | |
314 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
315 | ; | |
316 | i++; | |
26a3a48d | 317 | ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
318 | if (ret->h_addr_list == NULL) |
319 | goto err; | |
320 | memset(ret->h_addr_list, 0, i*sizeof(char *)); | |
58964a49 RE |
321 | |
322 | j=strlen(a->h_name)+1; | |
26a3a48d | 323 | if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 324 | memcpy((char *)ret->h_name,a->h_name,j); |
58964a49 RE |
325 | for (i=0; a->h_aliases[i] != NULL; i++) |
326 | { | |
327 | j=strlen(a->h_aliases[i])+1; | |
26a3a48d | 328 | if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 329 | memcpy(ret->h_aliases[i],a->h_aliases[i],j); |
58964a49 RE |
330 | } |
331 | ret->h_length=a->h_length; | |
332 | ret->h_addrtype=a->h_addrtype; | |
333 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
334 | { | |
26a3a48d | 335 | if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) |
58964a49 RE |
336 | goto err; |
337 | memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); | |
338 | } | |
dfeab068 RE |
339 | if (0) |
340 | { | |
58964a49 | 341 | err: |
dfeab068 RE |
342 | if (ret != NULL) |
343 | ghbn_free(ret); | |
344 | ret=NULL; | |
345 | } | |
346 | MemCheck_on(); | |
347 | return(ret); | |
58964a49 RE |
348 | } |
349 | ||
6b691a5c | 350 | static void ghbn_free(struct hostent *a) |
58964a49 RE |
351 | { |
352 | int i; | |
353 | ||
e03ddfae BL |
354 | if(a == NULL) |
355 | return; | |
356 | ||
58964a49 RE |
357 | if (a->h_aliases != NULL) |
358 | { | |
359 | for (i=0; a->h_aliases[i] != NULL; i++) | |
26a3a48d RL |
360 | OPENSSL_free(a->h_aliases[i]); |
361 | OPENSSL_free(a->h_aliases); | |
58964a49 RE |
362 | } |
363 | if (a->h_addr_list != NULL) | |
364 | { | |
365 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
26a3a48d RL |
366 | OPENSSL_free(a->h_addr_list[i]); |
367 | OPENSSL_free(a->h_addr_list); | |
58964a49 | 368 | } |
26a3a48d RL |
369 | if (a->h_name != NULL) OPENSSL_free(a->h_name); |
370 | OPENSSL_free(a); | |
58964a49 | 371 | } |
d02b48c6 | 372 | |
15863658 DSH |
373 | #endif |
374 | ||
6b691a5c | 375 | struct hostent *BIO_gethostbyname(const char *name) |
d02b48c6 | 376 | { |
c602e7f4 BM |
377 | #if 1 |
378 | /* Caching gethostbyname() results forever is wrong, | |
379 | * so we have to let the true gethostbyname() worry about this */ | |
eef0c1f3 DSH |
380 | #if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) |
381 | return gethostbyname((char*)name); | |
382 | #else | |
c602e7f4 | 383 | return gethostbyname(name); |
eef0c1f3 | 384 | #endif |
c602e7f4 | 385 | #else |
d02b48c6 | 386 | struct hostent *ret; |
58964a49 | 387 | int i,lowi=0,j; |
d02b48c6 RE |
388 | unsigned long low= (unsigned long)-1; |
389 | ||
58964a49 | 390 | |
c602e7f4 BM |
391 | # if 0 |
392 | /* It doesn't make sense to use locking here: The function interface | |
393 | * is not thread-safe, because threads can never be sure when | |
394 | * some other thread destroys the data they were given a pointer to. | |
395 | */ | |
2a82c7cf | 396 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 397 | # endif |
58964a49 RE |
398 | j=strlen(name); |
399 | if (j < 128) | |
d02b48c6 RE |
400 | { |
401 | for (i=0; i<GHBN_NUM; i++) | |
402 | { | |
403 | if (low > ghbn_cache[i].order) | |
404 | { | |
405 | low=ghbn_cache[i].order; | |
406 | lowi=i; | |
407 | } | |
408 | if (ghbn_cache[i].order > 0) | |
409 | { | |
410 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
411 | break; | |
412 | } | |
413 | } | |
414 | } | |
415 | else | |
416 | i=GHBN_NUM; | |
417 | ||
418 | if (i == GHBN_NUM) /* no hit*/ | |
419 | { | |
420 | BIO_ghbn_miss++; | |
7256ce6a RL |
421 | /* Note: under VMS with SOCKETSHR, it seems like the first |
422 | * parameter is 'char *', instead of 'const char *' | |
423 | */ | |
c602e7f4 | 424 | # ifndef CONST_STRICT |
eef0c1f3 DSH |
425 | ret=gethostbyname((char *)name); |
426 | # else | |
427 | ret=gethostbyname(name); | |
c602e7f4 | 428 | # endif |
58964a49 | 429 | |
2a82c7cf BM |
430 | if (ret == NULL) |
431 | goto end; | |
432 | if (j > 128) /* too big to cache */ | |
433 | { | |
c602e7f4 BM |
434 | # if 0 |
435 | /* If we were trying to make this function thread-safe (which | |
436 | * is bound to fail), we'd have to give up in this case | |
437 | * (or allocate more memory). */ | |
2a82c7cf | 438 | ret = NULL; |
c602e7f4 | 439 | # endif |
2a82c7cf BM |
440 | goto end; |
441 | } | |
58964a49 | 442 | |
d02b48c6 | 443 | /* else add to cache */ |
58964a49 | 444 | if (ghbn_cache[lowi].ent != NULL) |
64a3b11b | 445 | ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ |
2a82c7cf | 446 | ghbn_cache[lowi].name[0] = '\0'; |
58964a49 | 447 | |
2a82c7cf BM |
448 | if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) |
449 | { | |
450 | BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); | |
451 | goto end; | |
452 | } | |
d02b48c6 | 453 | strncpy(ghbn_cache[lowi].name,name,128); |
d02b48c6 RE |
454 | ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; |
455 | } | |
456 | else | |
457 | { | |
458 | BIO_ghbn_hits++; | |
58964a49 | 459 | ret= ghbn_cache[i].ent; |
d02b48c6 RE |
460 | ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; |
461 | } | |
2a82c7cf | 462 | end: |
c602e7f4 | 463 | # if 0 |
2a82c7cf | 464 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 465 | # endif |
d02b48c6 | 466 | return(ret); |
c602e7f4 | 467 | #endif |
d02b48c6 RE |
468 | } |
469 | ||
c602e7f4 | 470 | |
6b691a5c | 471 | int BIO_sock_init(void) |
d02b48c6 | 472 | { |
bc36ee62 | 473 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
474 | static struct WSAData wsa_state; |
475 | ||
476 | if (!wsa_init_done) | |
477 | { | |
478 | int err; | |
479 | ||
d02b48c6 RE |
480 | wsa_init_done=1; |
481 | memset(&wsa_state,0,sizeof(wsa_state)); | |
481d81cb AP |
482 | /* Not making wsa_state available to the rest of the |
483 | * code is formally wrong. But the structures we use | |
484 | * are [beleived to be] invariable among Winsock DLLs, | |
485 | * while API availability is [expected to be] probed | |
486 | * at run-time with DSO_global_lookup. */ | |
487 | if (WSAStartup(0x0202,&wsa_state)!=0) | |
d02b48c6 RE |
488 | { |
489 | err=WSAGetLastError(); | |
490 | SYSerr(SYS_F_WSASTARTUP,err); | |
491 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
492 | return(-1); | |
493 | } | |
494 | } | |
bc36ee62 | 495 | #endif /* OPENSSL_SYS_WINDOWS */ |
8d6e6048 RL |
496 | #ifdef WATT32 |
497 | extern int _watt_do_exit; | |
498 | _watt_do_exit = 0; /* don't make sock_init() call exit() */ | |
499 | if (sock_init()) | |
500 | return (-1); | |
501 | #endif | |
4d8743f4 | 502 | |
b764ab95 | 503 | #if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
504 | WORD wVerReq; |
505 | WSADATA wsaData; | |
506 | int err; | |
507 | ||
508 | if (!wsa_init_done) | |
509 | { | |
4d8743f4 RL |
510 | wsa_init_done=1; |
511 | wVerReq = MAKEWORD( 2, 0 ); | |
512 | err = WSAStartup(wVerReq,&wsaData); | |
513 | if (err != 0) | |
514 | { | |
515 | SYSerr(SYS_F_WSASTARTUP,err); | |
516 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
517 | return(-1); | |
518 | } | |
519 | } | |
520 | #endif | |
521 | ||
d02b48c6 RE |
522 | return(1); |
523 | } | |
524 | ||
6b691a5c | 525 | void BIO_sock_cleanup(void) |
d02b48c6 | 526 | { |
bc36ee62 | 527 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
528 | if (wsa_init_done) |
529 | { | |
530 | wsa_init_done=0; | |
cc3d7bd0 | 531 | #if 0 /* this call is claimed to be non-present in Winsock2 */ |
d02b48c6 | 532 | WSACancelBlockingCall(); |
0bf23d9b | 533 | #endif |
d02b48c6 RE |
534 | WSACleanup(); |
535 | } | |
b764ab95 | 536 | #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
537 | if (wsa_init_done) |
538 | { | |
539 | wsa_init_done=0; | |
540 | WSACleanup(); | |
541 | } | |
d02b48c6 RE |
542 | #endif |
543 | } | |
544 | ||
bc36ee62 | 545 | #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 |
7d7d2cbc | 546 | |
c029841e | 547 | int BIO_socket_ioctl(int fd, long type, void *arg) |
d02b48c6 | 548 | { |
58964a49 | 549 | int i; |
d02b48c6 | 550 | |
451dc18f RL |
551 | #ifdef __DJGPP__ |
552 | i=ioctlsocket(fd,type,(char *)arg); | |
553 | #else | |
01d2e27a | 554 | # if defined(OPENSSL_SYS_VMS) |
3e9a08ec TH |
555 | /*- |
556 | * 2011-02-18 SMS. | |
01d2e27a RL |
557 | * VMS ioctl() can't tolerate a 64-bit "void *arg", but we |
558 | * observe that all the consumers pass in an "unsigned long *", | |
559 | * so we arrange a local copy with a short pointer, and use | |
560 | * that, instead. | |
561 | */ | |
562 | # if __INITIAL_POINTER_SIZE == 64 | |
563 | # define ARG arg_32p | |
564 | # pragma pointer_size save | |
565 | # pragma pointer_size 32 | |
566 | unsigned long arg_32; | |
567 | unsigned long *arg_32p; | |
568 | # pragma pointer_size restore | |
569 | arg_32p = &arg_32; | |
570 | arg_32 = *((unsigned long *) arg); | |
571 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
572 | # define ARG arg | |
573 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
574 | # else /* defined(OPENSSL_SYS_VMS) */ | |
575 | # define ARG arg | |
576 | # endif /* defined(OPENSSL_SYS_VMS) [else] */ | |
577 | ||
578 | i=ioctlsocket(fd,type,ARG); | |
451dc18f | 579 | #endif /* __DJGPP__ */ |
d02b48c6 | 580 | if (i < 0) |
58964a49 | 581 | SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); |
d02b48c6 RE |
582 | return(i); |
583 | } | |
7d7d2cbc | 584 | #endif /* __VMS_VER */ |
d02b48c6 RE |
585 | |
586 | /* The reason I have implemented this instead of using sscanf is because | |
587 | * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ | |
6b691a5c | 588 | static int get_ip(const char *str, unsigned char ip[4]) |
d02b48c6 RE |
589 | { |
590 | unsigned int tmp[4]; | |
591 | int num=0,c,ok=0; | |
592 | ||
593 | tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; | |
594 | ||
595 | for (;;) | |
596 | { | |
597 | c= *(str++); | |
598 | if ((c >= '0') && (c <= '9')) | |
599 | { | |
600 | ok=1; | |
601 | tmp[num]=tmp[num]*10+c-'0'; | |
b1460627 | 602 | if (tmp[num] > 255) return(0); |
d02b48c6 RE |
603 | } |
604 | else if (c == '.') | |
605 | { | |
606 | if (!ok) return(-1); | |
b1460627 | 607 | if (num == 3) return(0); |
d02b48c6 RE |
608 | num++; |
609 | ok=0; | |
610 | } | |
b1460627 | 611 | else if (c == '\0' && (num == 3) && ok) |
d02b48c6 RE |
612 | break; |
613 | else | |
614 | return(0); | |
615 | } | |
616 | ip[0]=tmp[0]; | |
617 | ip[1]=tmp[1]; | |
618 | ip[2]=tmp[2]; | |
619 | ip[3]=tmp[3]; | |
620 | return(1); | |
621 | } | |
622 | ||
6b691a5c | 623 | int BIO_get_accept_socket(char *host, int bind_mode) |
d02b48c6 RE |
624 | { |
625 | int ret=0; | |
f62d1ea3 DSH |
626 | union { |
627 | struct sockaddr sa; | |
628 | struct sockaddr_in sa_in; | |
d68f7641 | 629 | #if OPENSSL_USE_IPV6 |
f62d1ea3 | 630 | struct sockaddr_in6 sa_in6; |
d68f7641 | 631 | #endif |
f62d1ea3 | 632 | } server,client; |
0d8ffc20 | 633 | int s=INVALID_SOCKET,cs,addrlen; |
d02b48c6 | 634 | unsigned char ip[4]; |
def9f431 | 635 | unsigned short port; |
e24e4065 | 636 | char *str=NULL,*e; |
481d81cb | 637 | char *h,*p; |
d02b48c6 | 638 | unsigned long l; |
dfeab068 | 639 | int err_num; |
d02b48c6 | 640 | |
8c23788d | 641 | if (BIO_sock_init() != 1) return(INVALID_SOCKET); |
d02b48c6 RE |
642 | |
643 | if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); | |
644 | ||
645 | h=p=NULL; | |
646 | h=str; | |
647 | for (e=str; *e; e++) | |
648 | { | |
649 | if (*e == ':') | |
650 | { | |
481d81cb | 651 | p=e; |
d02b48c6 RE |
652 | } |
653 | else if (*e == '/') | |
654 | { | |
655 | *e='\0'; | |
656 | break; | |
657 | } | |
658 | } | |
481d81cb AP |
659 | if (p) *p++='\0'; /* points at last ':', '::port' is special [see below] */ |
660 | else p=h,h=NULL; | |
661 | ||
662 | #ifdef EAI_FAMILY | |
663 | do { | |
664 | static union { void *p; | |
5448e673 | 665 | int (WSAAPI *f)(const char *,const char *, |
481d81cb AP |
666 | const struct addrinfo *, |
667 | struct addrinfo **); | |
346ac301 | 668 | } p_getaddrinfo = {NULL}; |
481d81cb | 669 | static union { void *p; |
5448e673 | 670 | void (WSAAPI *f)(struct addrinfo *); |
346ac301 | 671 | } p_freeaddrinfo = {NULL}; |
481d81cb AP |
672 | struct addrinfo *res,hint; |
673 | ||
346ac301 | 674 | if (p_getaddrinfo.p==NULL) |
d02b48c6 | 675 | { |
346ac301 DSH |
676 | if ((p_getaddrinfo.p=DSO_global_lookup("getaddrinfo"))==NULL || |
677 | (p_freeaddrinfo.p=DSO_global_lookup("freeaddrinfo"))==NULL) | |
678 | p_getaddrinfo.p=(void*)-1; | |
d02b48c6 | 679 | } |
346ac301 | 680 | if (p_getaddrinfo.p==(void *)-1) break; |
481d81cb AP |
681 | |
682 | /* '::port' enforces IPv6 wildcard listener. Some OSes, | |
683 | * e.g. Solaris, default to IPv6 without any hint. Also | |
684 | * note that commonly IPv6 wildchard socket can service | |
685 | * IPv4 connections just as well... */ | |
686 | memset(&hint,0,sizeof(hint)); | |
419b09b0 | 687 | hint.ai_flags = AI_PASSIVE; |
ea558241 AP |
688 | if (h) |
689 | { | |
690 | if (strchr(h,':')) | |
691 | { | |
692 | if (h[1]=='\0') h=NULL; | |
b8dc932c | 693 | #if OPENSSL_USE_IPV6 |
ea558241 AP |
694 | hint.ai_family = AF_INET6; |
695 | #else | |
696 | h=NULL; | |
697 | #endif | |
698 | } | |
699 | else if (h[0]=='*' && h[1]=='\0') | |
419b09b0 DSH |
700 | { |
701 | hint.ai_family = AF_INET; | |
ea558241 | 702 | h=NULL; |
419b09b0 | 703 | } |
ea558241 AP |
704 | } |
705 | ||
346ac301 | 706 | if ((*p_getaddrinfo.f)(h,p,&hint,&res)) break; |
f62d1ea3 | 707 | |
0d8ffc20 AP |
708 | addrlen = res->ai_addrlen<=sizeof(server) ? |
709 | res->ai_addrlen : | |
710 | sizeof(server); | |
711 | memcpy(&server, res->ai_addr, addrlen); | |
f62d1ea3 | 712 | |
346ac301 | 713 | (*p_freeaddrinfo.f)(res); |
481d81cb AP |
714 | goto again; |
715 | } while (0); | |
716 | #endif | |
d02b48c6 | 717 | |
e24e4065 | 718 | if (!BIO_get_port(p,&port)) goto err; |
d02b48c6 RE |
719 | |
720 | memset((char *)&server,0,sizeof(server)); | |
f62d1ea3 DSH |
721 | server.sa_in.sin_family=AF_INET; |
722 | server.sa_in.sin_port=htons(port); | |
0d8ffc20 | 723 | addrlen = sizeof(server.sa_in); |
d02b48c6 | 724 | |
481d81cb | 725 | if (h == NULL || strcmp(h,"*") == 0) |
f62d1ea3 | 726 | server.sa_in.sin_addr.s_addr=INADDR_ANY; |
d02b48c6 RE |
727 | else |
728 | { | |
e24e4065 | 729 | if (!BIO_get_host_ip(h,&(ip[0]))) goto err; |
d02b48c6 RE |
730 | l=(unsigned long) |
731 | ((unsigned long)ip[0]<<24L)| | |
dfeab068 RE |
732 | ((unsigned long)ip[1]<<16L)| |
733 | ((unsigned long)ip[2]<< 8L)| | |
734 | ((unsigned long)ip[3]); | |
f62d1ea3 | 735 | server.sa_in.sin_addr.s_addr=htonl(l); |
d02b48c6 RE |
736 | } |
737 | ||
dfeab068 | 738 | again: |
f62d1ea3 | 739 | s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); |
d02b48c6 RE |
740 | if (s == INVALID_SOCKET) |
741 | { | |
58964a49 RE |
742 | SYSerr(SYS_F_SOCKET,get_last_socket_error()); |
743 | ERR_add_error_data(3,"port='",host,"'"); | |
744 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); | |
d02b48c6 RE |
745 | goto err; |
746 | } | |
dfeab068 RE |
747 | |
748 | #ifdef SO_REUSEADDR | |
749 | if (bind_mode == BIO_BIND_REUSEADDR) | |
750 | { | |
751 | int i=1; | |
752 | ||
753 | ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); | |
754 | bind_mode=BIO_BIND_NORMAL; | |
755 | } | |
756 | #endif | |
0d8ffc20 | 757 | if (bind(s,&server.sa,addrlen) == -1) |
d02b48c6 | 758 | { |
dfeab068 RE |
759 | #ifdef SO_REUSEADDR |
760 | err_num=get_last_socket_error(); | |
761 | if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && | |
31c4ab54 DSH |
762 | #ifdef OPENSSL_SYS_WINDOWS |
763 | /* Some versions of Windows define EADDRINUSE to | |
764 | * a dummy value. | |
765 | */ | |
766 | (err_num == WSAEADDRINUSE)) | |
767 | #else | |
dfeab068 | 768 | (err_num == EADDRINUSE)) |
31c4ab54 | 769 | #endif |
dfeab068 | 770 | { |
481d81cb AP |
771 | client = server; |
772 | if (h == NULL || strcmp(h,"*") == 0) | |
773 | { | |
b8dc932c | 774 | #if OPENSSL_USE_IPV6 |
f62d1ea3 | 775 | if (client.sa.sa_family == AF_INET6) |
481d81cb | 776 | { |
f62d1ea3 DSH |
777 | memset(&client.sa_in6.sin6_addr,0,sizeof(client.sa_in6.sin6_addr)); |
778 | client.sa_in6.sin6_addr.s6_addr[15]=1; | |
481d81cb AP |
779 | } |
780 | else | |
781 | #endif | |
f62d1ea3 | 782 | if (client.sa.sa_family == AF_INET) |
481d81cb | 783 | { |
f62d1ea3 | 784 | client.sa_in.sin_addr.s_addr=htonl(0x7F000001); |
481d81cb AP |
785 | } |
786 | else goto err; | |
787 | } | |
f62d1ea3 | 788 | cs=socket(client.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); |
dfeab068 RE |
789 | if (cs != INVALID_SOCKET) |
790 | { | |
791 | int ii; | |
0d8ffc20 | 792 | ii=connect(cs,&client.sa,addrlen); |
dfeab068 RE |
793 | closesocket(cs); |
794 | if (ii == INVALID_SOCKET) | |
795 | { | |
796 | bind_mode=BIO_BIND_REUSEADDR; | |
797 | closesocket(s); | |
798 | goto again; | |
799 | } | |
800 | /* else error */ | |
801 | } | |
802 | /* else error */ | |
803 | } | |
804 | #endif | |
805 | SYSerr(SYS_F_BIND,err_num); | |
58964a49 | 806 | ERR_add_error_data(3,"port='",host,"'"); |
d02b48c6 RE |
807 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); |
808 | goto err; | |
809 | } | |
58964a49 | 810 | if (listen(s,MAX_LISTEN) == -1) |
d02b48c6 | 811 | { |
58964a49 RE |
812 | SYSerr(SYS_F_BIND,get_last_socket_error()); |
813 | ERR_add_error_data(3,"port='",host,"'"); | |
d02b48c6 RE |
814 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); |
815 | goto err; | |
816 | } | |
817 | ret=1; | |
818 | err: | |
26a3a48d | 819 | if (str != NULL) OPENSSL_free(str); |
d02b48c6 RE |
820 | if ((ret == 0) && (s != INVALID_SOCKET)) |
821 | { | |
d02b48c6 | 822 | closesocket(s); |
d02b48c6 RE |
823 | s= INVALID_SOCKET; |
824 | } | |
825 | return(s); | |
826 | } | |
827 | ||
6b691a5c | 828 | int BIO_accept(int sock, char **addr) |
d02b48c6 RE |
829 | { |
830 | int ret=INVALID_SOCKET; | |
d02b48c6 | 831 | unsigned long l; |
def9f431 | 832 | unsigned short port; |
d02b48c6 RE |
833 | char *p; |
834 | ||
f62d1ea3 DSH |
835 | struct { |
836 | /* | |
837 | * As for following union. Trouble is that there are platforms | |
838 | * that have socklen_t and there are platforms that don't, on | |
839 | * some platforms socklen_t is int and on some size_t. So what | |
840 | * one can do? One can cook #ifdef spaghetti, which is nothing | |
841 | * but masochistic. Or one can do union between int and size_t. | |
842 | * One naturally does it primarily for 64-bit platforms where | |
843 | * sizeof(int) != sizeof(size_t). But would it work? Note that | |
844 | * if size_t member is initialized to 0, then later int member | |
845 | * assignment naturally does the job on little-endian platforms | |
846 | * regardless accept's expectations! What about big-endians? | |
847 | * If accept expects int*, then it works, and if size_t*, then | |
848 | * length value would appear as unreasonably large. But this | |
849 | * won't prevent it from filling in the address structure. The | |
850 | * trouble of course would be if accept returns more data than | |
851 | * actual buffer can accomodate and overwrite stack... That's | |
852 | * where early OPENSSL_assert comes into picture. Besides, the | |
853 | * only 64-bit big-endian platform found so far that expects | |
854 | * size_t* is HP-UX, where stack grows towards higher address. | |
855 | * <appro> | |
7d7d2cbc | 856 | */ |
f62d1ea3 DSH |
857 | union { size_t s; int i; } len; |
858 | union { | |
859 | struct sockaddr sa; | |
860 | struct sockaddr_in sa_in; | |
861 | #if OPENSSL_USE_IPV6 | |
862 | struct sockaddr_in6 sa_in6; | |
863 | #endif | |
864 | } from; | |
865 | } sa; | |
866 | ||
867 | sa.len.s=0; | |
868 | sa.len.i=sizeof(sa.from); | |
869 | memset(&sa.from,0,sizeof(sa.from)); | |
870 | ret=accept(sock,&sa.from.sa,(void *)&sa.len); | |
871 | if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0) | |
872 | { | |
873 | OPENSSL_assert(sa.len.s<=sizeof(sa.from)); | |
e4572e52 AP |
874 | sa.len.i = (int)sa.len.s; |
875 | /* use sa.len.i from this point */ | |
f62d1ea3 | 876 | } |
d02b48c6 RE |
877 | if (ret == INVALID_SOCKET) |
878 | { | |
924046ce | 879 | if(BIO_sock_should_retry(ret)) return -2; |
58964a49 | 880 | SYSerr(SYS_F_ACCEPT,get_last_socket_error()); |
d02b48c6 RE |
881 | BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); |
882 | goto end; | |
883 | } | |
884 | ||
885 | if (addr == NULL) goto end; | |
886 | ||
481d81cb AP |
887 | #ifdef EAI_FAMILY |
888 | do { | |
889 | char h[NI_MAXHOST],s[NI_MAXSERV]; | |
346ac301 | 890 | size_t nl; |
481d81cb | 891 | static union { void *p; |
5448e673 | 892 | int (WSAAPI *f)(const struct sockaddr *,size_t/*socklen_t*/, |
481d81cb | 893 | char *,size_t,char *,size_t,int); |
346ac301 | 894 | } p_getnameinfo = {NULL}; |
467d9f2a AP |
895 | /* 2nd argument to getnameinfo is specified to |
896 | * be socklen_t. Unfortunately there is a number | |
897 | * of environments where socklen_t is not defined. | |
898 | * As it's passed by value, it's safe to pass it | |
899 | * as size_t... <appro> */ | |
481d81cb | 900 | |
346ac301 | 901 | if (p_getnameinfo.p==NULL) |
481d81cb | 902 | { |
346ac301 DSH |
903 | if ((p_getnameinfo.p=DSO_global_lookup("getnameinfo"))==NULL) |
904 | p_getnameinfo.p=(void*)-1; | |
481d81cb | 905 | } |
346ac301 | 906 | if (p_getnameinfo.p==(void *)-1) break; |
481d81cb | 907 | |
f62d1ea3 | 908 | if ((*p_getnameinfo.f)(&sa.from.sa,sa.len.i,h,sizeof(h),s,sizeof(s), |
481d81cb | 909 | NI_NUMERICHOST|NI_NUMERICSERV)) break; |
f62d1ea3 | 910 | nl = strlen(h)+strlen(s)+2; |
481d81cb | 911 | p = *addr; |
346ac301 DSH |
912 | if (p) { *p = '\0'; p = OPENSSL_realloc(p,nl); } |
913 | else { p = OPENSSL_malloc(nl); } | |
481d81cb AP |
914 | if (p==NULL) |
915 | { | |
916 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
917 | goto end; | |
918 | } | |
919 | *addr = p; | |
346ac301 | 920 | BIO_snprintf(*addr,nl,"%s:%s",h,s); |
481d81cb AP |
921 | goto end; |
922 | } while(0); | |
923 | #endif | |
f62d1ea3 DSH |
924 | if (sa.from.sa.sa_family != AF_INET) goto end; |
925 | l=ntohl(sa.from.sa_in.sin_addr.s_addr); | |
926 | port=ntohs(sa.from.sa_in.sin_port); | |
d02b48c6 RE |
927 | if (*addr == NULL) |
928 | { | |
26a3a48d | 929 | if ((p=OPENSSL_malloc(24)) == NULL) |
d02b48c6 RE |
930 | { |
931 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
932 | goto end; | |
933 | } | |
934 | *addr=p; | |
935 | } | |
d420ac2c RL |
936 | BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d", |
937 | (unsigned char)(l>>24L)&0xff, | |
938 | (unsigned char)(l>>16L)&0xff, | |
939 | (unsigned char)(l>> 8L)&0xff, | |
940 | (unsigned char)(l )&0xff, | |
941 | port); | |
d02b48c6 RE |
942 | end: |
943 | return(ret); | |
944 | } | |
945 | ||
6b691a5c | 946 | int BIO_set_tcp_ndelay(int s, int on) |
d02b48c6 RE |
947 | { |
948 | int ret=0; | |
949 | #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
950 | int opt; | |
951 | ||
952 | #ifdef SOL_TCP | |
953 | opt=SOL_TCP; | |
954 | #else | |
955 | #ifdef IPPROTO_TCP | |
956 | opt=IPPROTO_TCP; | |
957 | #endif | |
958 | #endif | |
959 | ||
960 | ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); | |
961 | #endif | |
962 | return(ret == 0); | |
963 | } | |
d02b48c6 | 964 | |
6b691a5c | 965 | int BIO_socket_nbio(int s, int mode) |
dfeab068 RE |
966 | { |
967 | int ret= -1; | |
c029841e | 968 | int l; |
dfeab068 RE |
969 | |
970 | l=mode; | |
971 | #ifdef FIONBIO | |
972 | ret=BIO_socket_ioctl(s,FIONBIO,&l); | |
973 | #endif | |
974 | return(ret == 0); | |
975 | } | |
32e12316 | 976 | #endif |