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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 | ||
2f4c1dc8 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 | 152 | |
6d23cf97 | 153 | if (he->h_addrtype != AF_INET) |
ba9f2808 BM |
154 | { |
155 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
156 | goto err; | |
157 | } | |
158 | for (i=0; i<4; i++) | |
159 | ip[i]=he->h_addr_list[0][i]; | |
160 | err = 0; | |
161 | ||
162 | err: | |
163 | if (locked) | |
164 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); | |
165 | if (err) | |
166 | { | |
167 | ERR_add_error_data(2,"host=",str); | |
168 | return 0; | |
169 | } | |
170 | else | |
171 | return 1; | |
d02b48c6 RE |
172 | } |
173 | ||
6b691a5c | 174 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
d02b48c6 RE |
175 | { |
176 | int i; | |
177 | struct servent *s; | |
178 | ||
179 | if (str == NULL) | |
180 | { | |
181 | BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); | |
182 | return(0); | |
183 | } | |
184 | i=atoi(str); | |
185 | if (i != 0) | |
186 | *port_ptr=(unsigned short)i; | |
187 | else | |
188 | { | |
2a82c7cf | 189 | CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); |
7256ce6a RL |
190 | /* Note: under VMS with SOCKETSHR, it seems like the first |
191 | * parameter is 'char *', instead of 'const char *' | |
192 | */ | |
9d1a01be | 193 | #ifndef CONST_STRICT |
eef0c1f3 DSH |
194 | s=getservbyname((char *)str,"tcp"); |
195 | #else | |
196 | s=getservbyname(str,"tcp"); | |
9d1a01be | 197 | #endif |
2a82c7cf BM |
198 | if(s != NULL) |
199 | *port_ptr=ntohs((unsigned short)s->s_port); | |
200 | CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); | |
201 | if(s == NULL) | |
d02b48c6 RE |
202 | { |
203 | if (strcmp(str,"http") == 0) | |
204 | *port_ptr=80; | |
205 | else if (strcmp(str,"telnet") == 0) | |
206 | *port_ptr=23; | |
207 | else if (strcmp(str,"socks") == 0) | |
208 | *port_ptr=1080; | |
209 | else if (strcmp(str,"https") == 0) | |
210 | *port_ptr=443; | |
211 | else if (strcmp(str,"ssl") == 0) | |
212 | *port_ptr=443; | |
213 | else if (strcmp(str,"ftp") == 0) | |
214 | *port_ptr=21; | |
215 | else if (strcmp(str,"gopher") == 0) | |
216 | *port_ptr=70; | |
217 | #if 0 | |
218 | else if (strcmp(str,"wais") == 0) | |
219 | *port_ptr=21; | |
220 | #endif | |
221 | else | |
222 | { | |
58964a49 RE |
223 | SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); |
224 | ERR_add_error_data(3,"service='",str,"'"); | |
d02b48c6 RE |
225 | return(0); |
226 | } | |
d02b48c6 | 227 | } |
d02b48c6 RE |
228 | } |
229 | return(1); | |
230 | } | |
231 | ||
6b691a5c | 232 | int BIO_sock_error(int sock) |
d02b48c6 | 233 | { |
95dc05bc | 234 | int j,i; |
80c42f3e | 235 | union { size_t s; int i; } size; |
d02b48c6 | 236 | |
80c42f3e AP |
237 | /* heuristic way to adapt for platforms that expect 64-bit optlen */ |
238 | size.s=0, size.i=sizeof(j); | |
a1e464f9 DSH |
239 | /* Note: under Windows the third parameter is of type (char *) |
240 | * whereas under other systems it is (void *) if you don't have | |
241 | * a cast it will choke the compiler: if you do have a cast then | |
242 | * you can either go for (char *) or (void *). | |
243 | */ | |
7d7d2cbc | 244 | i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); |
d02b48c6 RE |
245 | if (i < 0) |
246 | return(1); | |
247 | else | |
248 | return(j); | |
249 | } | |
250 | ||
54a656ef | 251 | #if 0 |
6b691a5c | 252 | long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) |
d02b48c6 | 253 | { |
58964a49 RE |
254 | int i; |
255 | char **p; | |
256 | ||
257 | switch (cmd) | |
258 | { | |
259 | case BIO_GHBN_CTRL_HITS: | |
260 | return(BIO_ghbn_hits); | |
dfeab068 | 261 | /* break; */ |
58964a49 RE |
262 | case BIO_GHBN_CTRL_MISSES: |
263 | return(BIO_ghbn_miss); | |
dfeab068 | 264 | /* break; */ |
58964a49 RE |
265 | case BIO_GHBN_CTRL_CACHE_SIZE: |
266 | return(GHBN_NUM); | |
dfeab068 | 267 | /* break; */ |
58964a49 RE |
268 | case BIO_GHBN_CTRL_GET_ENTRY: |
269 | if ((iarg >= 0) && (iarg <GHBN_NUM) && | |
270 | (ghbn_cache[iarg].order > 0)) | |
271 | { | |
272 | p=(char **)parg; | |
273 | if (p == NULL) return(0); | |
274 | *p=ghbn_cache[iarg].name; | |
275 | ghbn_cache[iarg].name[128]='\0'; | |
276 | return(1); | |
277 | } | |
278 | return(0); | |
dfeab068 | 279 | /* break; */ |
58964a49 RE |
280 | case BIO_GHBN_CTRL_FLUSH: |
281 | for (i=0; i<GHBN_NUM; i++) | |
282 | ghbn_cache[i].order=0; | |
283 | break; | |
284 | default: | |
285 | return(0); | |
286 | } | |
287 | return(1); | |
288 | } | |
54a656ef | 289 | #endif |
58964a49 | 290 | |
15863658 | 291 | #if 0 |
6b691a5c | 292 | static struct hostent *ghbn_dup(struct hostent *a) |
58964a49 RE |
293 | { |
294 | struct hostent *ret; | |
295 | int i,j; | |
296 | ||
dfeab068 | 297 | MemCheck_off(); |
26a3a48d | 298 | ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); |
58964a49 RE |
299 | if (ret == NULL) return(NULL); |
300 | memset(ret,0,sizeof(struct hostent)); | |
301 | ||
302 | for (i=0; a->h_aliases[i] != NULL; i++) | |
303 | ; | |
304 | i++; | |
26a3a48d | 305 | ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
306 | if (ret->h_aliases == NULL) |
307 | goto err; | |
308 | memset(ret->h_aliases, 0, i*sizeof(char *)); | |
58964a49 RE |
309 | |
310 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
311 | ; | |
312 | i++; | |
26a3a48d | 313 | ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
314 | if (ret->h_addr_list == NULL) |
315 | goto err; | |
316 | memset(ret->h_addr_list, 0, i*sizeof(char *)); | |
58964a49 RE |
317 | |
318 | j=strlen(a->h_name)+1; | |
26a3a48d | 319 | if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 320 | memcpy((char *)ret->h_name,a->h_name,j); |
58964a49 RE |
321 | for (i=0; a->h_aliases[i] != NULL; i++) |
322 | { | |
323 | j=strlen(a->h_aliases[i])+1; | |
26a3a48d | 324 | if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 325 | memcpy(ret->h_aliases[i],a->h_aliases[i],j); |
58964a49 RE |
326 | } |
327 | ret->h_length=a->h_length; | |
328 | ret->h_addrtype=a->h_addrtype; | |
329 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
330 | { | |
26a3a48d | 331 | if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) |
58964a49 RE |
332 | goto err; |
333 | memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); | |
334 | } | |
dfeab068 RE |
335 | if (0) |
336 | { | |
58964a49 | 337 | err: |
dfeab068 RE |
338 | if (ret != NULL) |
339 | ghbn_free(ret); | |
340 | ret=NULL; | |
341 | } | |
342 | MemCheck_on(); | |
343 | return(ret); | |
58964a49 RE |
344 | } |
345 | ||
6b691a5c | 346 | static void ghbn_free(struct hostent *a) |
58964a49 RE |
347 | { |
348 | int i; | |
349 | ||
e03ddfae BL |
350 | if(a == NULL) |
351 | return; | |
352 | ||
58964a49 RE |
353 | if (a->h_aliases != NULL) |
354 | { | |
355 | for (i=0; a->h_aliases[i] != NULL; i++) | |
26a3a48d RL |
356 | OPENSSL_free(a->h_aliases[i]); |
357 | OPENSSL_free(a->h_aliases); | |
58964a49 RE |
358 | } |
359 | if (a->h_addr_list != NULL) | |
360 | { | |
361 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
26a3a48d RL |
362 | OPENSSL_free(a->h_addr_list[i]); |
363 | OPENSSL_free(a->h_addr_list); | |
58964a49 | 364 | } |
26a3a48d RL |
365 | if (a->h_name != NULL) OPENSSL_free(a->h_name); |
366 | OPENSSL_free(a); | |
58964a49 | 367 | } |
d02b48c6 | 368 | |
15863658 DSH |
369 | #endif |
370 | ||
6b691a5c | 371 | struct hostent *BIO_gethostbyname(const char *name) |
d02b48c6 | 372 | { |
c602e7f4 BM |
373 | #if 1 |
374 | /* Caching gethostbyname() results forever is wrong, | |
375 | * so we have to let the true gethostbyname() worry about this */ | |
eef0c1f3 DSH |
376 | #if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) |
377 | return gethostbyname((char*)name); | |
378 | #else | |
c602e7f4 | 379 | return gethostbyname(name); |
eef0c1f3 | 380 | #endif |
c602e7f4 | 381 | #else |
d02b48c6 | 382 | struct hostent *ret; |
58964a49 | 383 | int i,lowi=0,j; |
d02b48c6 RE |
384 | unsigned long low= (unsigned long)-1; |
385 | ||
58964a49 | 386 | |
c602e7f4 BM |
387 | # if 0 |
388 | /* It doesn't make sense to use locking here: The function interface | |
389 | * is not thread-safe, because threads can never be sure when | |
390 | * some other thread destroys the data they were given a pointer to. | |
391 | */ | |
2a82c7cf | 392 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 393 | # endif |
58964a49 RE |
394 | j=strlen(name); |
395 | if (j < 128) | |
d02b48c6 RE |
396 | { |
397 | for (i=0; i<GHBN_NUM; i++) | |
398 | { | |
399 | if (low > ghbn_cache[i].order) | |
400 | { | |
401 | low=ghbn_cache[i].order; | |
402 | lowi=i; | |
403 | } | |
404 | if (ghbn_cache[i].order > 0) | |
405 | { | |
406 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
407 | break; | |
408 | } | |
409 | } | |
410 | } | |
411 | else | |
412 | i=GHBN_NUM; | |
413 | ||
414 | if (i == GHBN_NUM) /* no hit*/ | |
415 | { | |
416 | BIO_ghbn_miss++; | |
7256ce6a RL |
417 | /* Note: under VMS with SOCKETSHR, it seems like the first |
418 | * parameter is 'char *', instead of 'const char *' | |
419 | */ | |
c602e7f4 | 420 | # ifndef CONST_STRICT |
eef0c1f3 DSH |
421 | ret=gethostbyname((char *)name); |
422 | # else | |
423 | ret=gethostbyname(name); | |
c602e7f4 | 424 | # endif |
58964a49 | 425 | |
2a82c7cf BM |
426 | if (ret == NULL) |
427 | goto end; | |
428 | if (j > 128) /* too big to cache */ | |
429 | { | |
c602e7f4 BM |
430 | # if 0 |
431 | /* If we were trying to make this function thread-safe (which | |
432 | * is bound to fail), we'd have to give up in this case | |
433 | * (or allocate more memory). */ | |
2a82c7cf | 434 | ret = NULL; |
c602e7f4 | 435 | # endif |
2a82c7cf BM |
436 | goto end; |
437 | } | |
58964a49 | 438 | |
d02b48c6 | 439 | /* else add to cache */ |
58964a49 | 440 | if (ghbn_cache[lowi].ent != NULL) |
64a3b11b | 441 | ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ |
2a82c7cf | 442 | ghbn_cache[lowi].name[0] = '\0'; |
58964a49 | 443 | |
2a82c7cf BM |
444 | if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) |
445 | { | |
446 | BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); | |
447 | goto end; | |
448 | } | |
d02b48c6 | 449 | strncpy(ghbn_cache[lowi].name,name,128); |
d02b48c6 RE |
450 | ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; |
451 | } | |
452 | else | |
453 | { | |
454 | BIO_ghbn_hits++; | |
58964a49 | 455 | ret= ghbn_cache[i].ent; |
d02b48c6 RE |
456 | ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; |
457 | } | |
2a82c7cf | 458 | end: |
c602e7f4 | 459 | # if 0 |
2a82c7cf | 460 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); |
c602e7f4 | 461 | # endif |
d02b48c6 | 462 | return(ret); |
c602e7f4 | 463 | #endif |
d02b48c6 RE |
464 | } |
465 | ||
c602e7f4 | 466 | |
6b691a5c | 467 | int BIO_sock_init(void) |
d02b48c6 | 468 | { |
bc36ee62 | 469 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
470 | static struct WSAData wsa_state; |
471 | ||
472 | if (!wsa_init_done) | |
473 | { | |
474 | int err; | |
475 | ||
d02b48c6 RE |
476 | wsa_init_done=1; |
477 | memset(&wsa_state,0,sizeof(wsa_state)); | |
481d81cb AP |
478 | /* Not making wsa_state available to the rest of the |
479 | * code is formally wrong. But the structures we use | |
480 | * are [beleived to be] invariable among Winsock DLLs, | |
481 | * while API availability is [expected to be] probed | |
482 | * at run-time with DSO_global_lookup. */ | |
483 | if (WSAStartup(0x0202,&wsa_state)!=0) | |
d02b48c6 RE |
484 | { |
485 | err=WSAGetLastError(); | |
486 | SYSerr(SYS_F_WSASTARTUP,err); | |
487 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
488 | return(-1); | |
489 | } | |
490 | } | |
bc36ee62 | 491 | #endif /* OPENSSL_SYS_WINDOWS */ |
f642ebc1 RS |
492 | #ifdef WATT32 |
493 | extern int _watt_do_exit; | |
494 | _watt_do_exit = 0; /* don't make sock_init() call exit() */ | |
495 | if (sock_init()) | |
496 | return (-1); | |
497 | #endif | |
4d8743f4 | 498 | |
b764ab95 | 499 | #if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
500 | WORD wVerReq; |
501 | WSADATA wsaData; | |
502 | int err; | |
503 | ||
504 | if (!wsa_init_done) | |
505 | { | |
4d8743f4 RL |
506 | wsa_init_done=1; |
507 | wVerReq = MAKEWORD( 2, 0 ); | |
508 | err = WSAStartup(wVerReq,&wsaData); | |
509 | if (err != 0) | |
510 | { | |
511 | SYSerr(SYS_F_WSASTARTUP,err); | |
512 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
513 | return(-1); | |
514 | } | |
515 | } | |
516 | #endif | |
517 | ||
d02b48c6 RE |
518 | return(1); |
519 | } | |
520 | ||
6b691a5c | 521 | void BIO_sock_cleanup(void) |
d02b48c6 | 522 | { |
bc36ee62 | 523 | #ifdef OPENSSL_SYS_WINDOWS |
d02b48c6 RE |
524 | if (wsa_init_done) |
525 | { | |
526 | wsa_init_done=0; | |
cc3d7bd0 | 527 | #if 0 /* this call is claimed to be non-present in Winsock2 */ |
d02b48c6 | 528 | WSACancelBlockingCall(); |
0bf23d9b | 529 | #endif |
d02b48c6 RE |
530 | WSACleanup(); |
531 | } | |
b764ab95 | 532 | #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) |
4d8743f4 RL |
533 | if (wsa_init_done) |
534 | { | |
535 | wsa_init_done=0; | |
536 | WSACleanup(); | |
537 | } | |
d02b48c6 RE |
538 | #endif |
539 | } | |
540 | ||
bc36ee62 | 541 | #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 |
7d7d2cbc | 542 | |
c029841e | 543 | int BIO_socket_ioctl(int fd, long type, void *arg) |
d02b48c6 | 544 | { |
58964a49 | 545 | int i; |
d02b48c6 | 546 | |
f642ebc1 RS |
547 | #ifdef __DJGPP__ |
548 | i=ioctlsocket(fd,type,(char *)arg); | |
549 | #else | |
537c9823 | 550 | # if defined(OPENSSL_SYS_VMS) |
3a83462d MC |
551 | /*- |
552 | * 2011-02-18 SMS. | |
537c9823 RL |
553 | * VMS ioctl() can't tolerate a 64-bit "void *arg", but we |
554 | * observe that all the consumers pass in an "unsigned long *", | |
555 | * so we arrange a local copy with a short pointer, and use | |
556 | * that, instead. | |
557 | */ | |
558 | # if __INITIAL_POINTER_SIZE == 64 | |
559 | # define ARG arg_32p | |
560 | # pragma pointer_size save | |
561 | # pragma pointer_size 32 | |
562 | unsigned long arg_32; | |
563 | unsigned long *arg_32p; | |
564 | # pragma pointer_size restore | |
565 | arg_32p = &arg_32; | |
566 | arg_32 = *((unsigned long *) arg); | |
567 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
568 | # define ARG arg | |
569 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
570 | # else /* defined(OPENSSL_SYS_VMS) */ | |
571 | # define ARG arg | |
572 | # endif /* defined(OPENSSL_SYS_VMS) [else] */ | |
a9008157 | 573 | |
f642ebc1 RS |
574 | i=ioctlsocket(fd,type,ARG); |
575 | #endif /* __DJGPP__ */ | |
d02b48c6 | 576 | if (i < 0) |
58964a49 | 577 | SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); |
d02b48c6 RE |
578 | return(i); |
579 | } | |
7d7d2cbc | 580 | #endif /* __VMS_VER */ |
d02b48c6 RE |
581 | |
582 | /* The reason I have implemented this instead of using sscanf is because | |
583 | * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ | |
6b691a5c | 584 | static int get_ip(const char *str, unsigned char ip[4]) |
d02b48c6 RE |
585 | { |
586 | unsigned int tmp[4]; | |
587 | int num=0,c,ok=0; | |
588 | ||
589 | tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; | |
590 | ||
591 | for (;;) | |
592 | { | |
593 | c= *(str++); | |
594 | if ((c >= '0') && (c <= '9')) | |
595 | { | |
596 | ok=1; | |
597 | tmp[num]=tmp[num]*10+c-'0'; | |
b1460627 | 598 | if (tmp[num] > 255) return(0); |
d02b48c6 RE |
599 | } |
600 | else if (c == '.') | |
601 | { | |
602 | if (!ok) return(-1); | |
b1460627 | 603 | if (num == 3) return(0); |
d02b48c6 RE |
604 | num++; |
605 | ok=0; | |
606 | } | |
b1460627 | 607 | else if (c == '\0' && (num == 3) && ok) |
d02b48c6 RE |
608 | break; |
609 | else | |
610 | return(0); | |
611 | } | |
612 | ip[0]=tmp[0]; | |
613 | ip[1]=tmp[1]; | |
614 | ip[2]=tmp[2]; | |
615 | ip[3]=tmp[3]; | |
616 | return(1); | |
617 | } | |
618 | ||
6b691a5c | 619 | int BIO_get_accept_socket(char *host, int bind_mode) |
d02b48c6 RE |
620 | { |
621 | int ret=0; | |
b34d449c AP |
622 | union { |
623 | struct sockaddr sa; | |
624 | struct sockaddr_in sa_in; | |
d636aa71 | 625 | #if OPENSSL_USE_IPV6 |
b34d449c | 626 | struct sockaddr_in6 sa_in6; |
d636aa71 | 627 | #endif |
b34d449c | 628 | } server,client; |
25d1d622 | 629 | int s=INVALID_SOCKET,cs,addrlen; |
d02b48c6 | 630 | unsigned char ip[4]; |
def9f431 | 631 | unsigned short port; |
e24e4065 | 632 | char *str=NULL,*e; |
481d81cb | 633 | char *h,*p; |
d02b48c6 | 634 | unsigned long l; |
dfeab068 | 635 | int err_num; |
d02b48c6 | 636 | |
8c23788d | 637 | if (BIO_sock_init() != 1) return(INVALID_SOCKET); |
d02b48c6 RE |
638 | |
639 | if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); | |
640 | ||
641 | h=p=NULL; | |
642 | h=str; | |
643 | for (e=str; *e; e++) | |
644 | { | |
645 | if (*e == ':') | |
646 | { | |
481d81cb | 647 | p=e; |
d02b48c6 RE |
648 | } |
649 | else if (*e == '/') | |
650 | { | |
651 | *e='\0'; | |
652 | break; | |
653 | } | |
654 | } | |
481d81cb AP |
655 | if (p) *p++='\0'; /* points at last ':', '::port' is special [see below] */ |
656 | else p=h,h=NULL; | |
657 | ||
658 | #ifdef EAI_FAMILY | |
659 | do { | |
660 | static union { void *p; | |
2f4c1dc8 | 661 | int (WSAAPI *f)(const char *,const char *, |
481d81cb AP |
662 | const struct addrinfo *, |
663 | struct addrinfo **); | |
346ac301 | 664 | } p_getaddrinfo = {NULL}; |
481d81cb | 665 | static union { void *p; |
2f4c1dc8 | 666 | void (WSAAPI *f)(struct addrinfo *); |
346ac301 | 667 | } p_freeaddrinfo = {NULL}; |
481d81cb AP |
668 | struct addrinfo *res,hint; |
669 | ||
346ac301 | 670 | if (p_getaddrinfo.p==NULL) |
d02b48c6 | 671 | { |
346ac301 DSH |
672 | if ((p_getaddrinfo.p=DSO_global_lookup("getaddrinfo"))==NULL || |
673 | (p_freeaddrinfo.p=DSO_global_lookup("freeaddrinfo"))==NULL) | |
674 | p_getaddrinfo.p=(void*)-1; | |
d02b48c6 | 675 | } |
346ac301 | 676 | if (p_getaddrinfo.p==(void *)-1) break; |
481d81cb AP |
677 | |
678 | /* '::port' enforces IPv6 wildcard listener. Some OSes, | |
679 | * e.g. Solaris, default to IPv6 without any hint. Also | |
680 | * note that commonly IPv6 wildchard socket can service | |
681 | * IPv4 connections just as well... */ | |
682 | memset(&hint,0,sizeof(hint)); | |
44ddb27f | 683 | hint.ai_flags = AI_PASSIVE; |
ea558241 AP |
684 | if (h) |
685 | { | |
686 | if (strchr(h,':')) | |
687 | { | |
688 | if (h[1]=='\0') h=NULL; | |
a6dab873 | 689 | #if OPENSSL_USE_IPV6 |
ea558241 AP |
690 | hint.ai_family = AF_INET6; |
691 | #else | |
692 | h=NULL; | |
693 | #endif | |
694 | } | |
695 | else if (h[0]=='*' && h[1]=='\0') | |
44ddb27f DSH |
696 | { |
697 | hint.ai_family = AF_INET; | |
ea558241 | 698 | h=NULL; |
44ddb27f | 699 | } |
ea558241 AP |
700 | } |
701 | ||
346ac301 | 702 | if ((*p_getaddrinfo.f)(h,p,&hint,&res)) break; |
b34d449c | 703 | |
25d1d622 AP |
704 | addrlen = res->ai_addrlen<=sizeof(server) ? |
705 | res->ai_addrlen : | |
706 | sizeof(server); | |
707 | memcpy(&server, res->ai_addr, addrlen); | |
b34d449c | 708 | |
346ac301 | 709 | (*p_freeaddrinfo.f)(res); |
481d81cb AP |
710 | goto again; |
711 | } while (0); | |
712 | #endif | |
d02b48c6 | 713 | |
e24e4065 | 714 | if (!BIO_get_port(p,&port)) goto err; |
d02b48c6 RE |
715 | |
716 | memset((char *)&server,0,sizeof(server)); | |
b34d449c AP |
717 | server.sa_in.sin_family=AF_INET; |
718 | server.sa_in.sin_port=htons(port); | |
25d1d622 | 719 | addrlen = sizeof(server.sa_in); |
d02b48c6 | 720 | |
481d81cb | 721 | if (h == NULL || strcmp(h,"*") == 0) |
b34d449c | 722 | server.sa_in.sin_addr.s_addr=INADDR_ANY; |
d02b48c6 RE |
723 | else |
724 | { | |
e24e4065 | 725 | if (!BIO_get_host_ip(h,&(ip[0]))) goto err; |
d02b48c6 RE |
726 | l=(unsigned long) |
727 | ((unsigned long)ip[0]<<24L)| | |
dfeab068 RE |
728 | ((unsigned long)ip[1]<<16L)| |
729 | ((unsigned long)ip[2]<< 8L)| | |
730 | ((unsigned long)ip[3]); | |
b34d449c | 731 | server.sa_in.sin_addr.s_addr=htonl(l); |
d02b48c6 RE |
732 | } |
733 | ||
dfeab068 | 734 | again: |
b34d449c | 735 | s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); |
d02b48c6 RE |
736 | if (s == INVALID_SOCKET) |
737 | { | |
58964a49 RE |
738 | SYSerr(SYS_F_SOCKET,get_last_socket_error()); |
739 | ERR_add_error_data(3,"port='",host,"'"); | |
740 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); | |
d02b48c6 RE |
741 | goto err; |
742 | } | |
dfeab068 RE |
743 | |
744 | #ifdef SO_REUSEADDR | |
745 | if (bind_mode == BIO_BIND_REUSEADDR) | |
746 | { | |
747 | int i=1; | |
748 | ||
749 | ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); | |
750 | bind_mode=BIO_BIND_NORMAL; | |
751 | } | |
752 | #endif | |
25d1d622 | 753 | if (bind(s,&server.sa,addrlen) == -1) |
d02b48c6 | 754 | { |
dfeab068 RE |
755 | #ifdef SO_REUSEADDR |
756 | err_num=get_last_socket_error(); | |
757 | if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && | |
eadfa019 DSH |
758 | #ifdef OPENSSL_SYS_WINDOWS |
759 | /* Some versions of Windows define EADDRINUSE to | |
760 | * a dummy value. | |
761 | */ | |
762 | (err_num == WSAEADDRINUSE)) | |
763 | #else | |
dfeab068 | 764 | (err_num == EADDRINUSE)) |
eadfa019 | 765 | #endif |
dfeab068 | 766 | { |
481d81cb AP |
767 | client = server; |
768 | if (h == NULL || strcmp(h,"*") == 0) | |
769 | { | |
a6dab873 | 770 | #if OPENSSL_USE_IPV6 |
b34d449c | 771 | if (client.sa.sa_family == AF_INET6) |
481d81cb | 772 | { |
b34d449c AP |
773 | memset(&client.sa_in6.sin6_addr,0,sizeof(client.sa_in6.sin6_addr)); |
774 | client.sa_in6.sin6_addr.s6_addr[15]=1; | |
481d81cb AP |
775 | } |
776 | else | |
777 | #endif | |
b34d449c | 778 | if (client.sa.sa_family == AF_INET) |
481d81cb | 779 | { |
b34d449c | 780 | client.sa_in.sin_addr.s_addr=htonl(0x7F000001); |
481d81cb AP |
781 | } |
782 | else goto err; | |
783 | } | |
b34d449c | 784 | cs=socket(client.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); |
dfeab068 RE |
785 | if (cs != INVALID_SOCKET) |
786 | { | |
787 | int ii; | |
25d1d622 | 788 | ii=connect(cs,&client.sa,addrlen); |
dfeab068 RE |
789 | closesocket(cs); |
790 | if (ii == INVALID_SOCKET) | |
791 | { | |
792 | bind_mode=BIO_BIND_REUSEADDR; | |
793 | closesocket(s); | |
794 | goto again; | |
795 | } | |
796 | /* else error */ | |
797 | } | |
798 | /* else error */ | |
799 | } | |
800 | #endif | |
801 | SYSerr(SYS_F_BIND,err_num); | |
58964a49 | 802 | ERR_add_error_data(3,"port='",host,"'"); |
d02b48c6 RE |
803 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); |
804 | goto err; | |
805 | } | |
58964a49 | 806 | if (listen(s,MAX_LISTEN) == -1) |
d02b48c6 | 807 | { |
58964a49 RE |
808 | SYSerr(SYS_F_BIND,get_last_socket_error()); |
809 | ERR_add_error_data(3,"port='",host,"'"); | |
d02b48c6 RE |
810 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); |
811 | goto err; | |
812 | } | |
813 | ret=1; | |
814 | err: | |
26a3a48d | 815 | if (str != NULL) OPENSSL_free(str); |
d02b48c6 RE |
816 | if ((ret == 0) && (s != INVALID_SOCKET)) |
817 | { | |
d02b48c6 | 818 | closesocket(s); |
d02b48c6 RE |
819 | s= INVALID_SOCKET; |
820 | } | |
821 | return(s); | |
822 | } | |
823 | ||
6b691a5c | 824 | int BIO_accept(int sock, char **addr) |
d02b48c6 RE |
825 | { |
826 | int ret=INVALID_SOCKET; | |
d02b48c6 | 827 | unsigned long l; |
def9f431 | 828 | unsigned short port; |
d02b48c6 RE |
829 | char *p; |
830 | ||
b34d449c AP |
831 | struct { |
832 | /* | |
833 | * As for following union. Trouble is that there are platforms | |
834 | * that have socklen_t and there are platforms that don't, on | |
835 | * some platforms socklen_t is int and on some size_t. So what | |
836 | * one can do? One can cook #ifdef spaghetti, which is nothing | |
837 | * but masochistic. Or one can do union between int and size_t. | |
838 | * One naturally does it primarily for 64-bit platforms where | |
839 | * sizeof(int) != sizeof(size_t). But would it work? Note that | |
840 | * if size_t member is initialized to 0, then later int member | |
841 | * assignment naturally does the job on little-endian platforms | |
842 | * regardless accept's expectations! What about big-endians? | |
843 | * If accept expects int*, then it works, and if size_t*, then | |
844 | * length value would appear as unreasonably large. But this | |
845 | * won't prevent it from filling in the address structure. The | |
846 | * trouble of course would be if accept returns more data than | |
847 | * actual buffer can accomodate and overwrite stack... That's | |
848 | * where early OPENSSL_assert comes into picture. Besides, the | |
849 | * only 64-bit big-endian platform found so far that expects | |
850 | * size_t* is HP-UX, where stack grows towards higher address. | |
851 | * <appro> | |
7d7d2cbc | 852 | */ |
b34d449c AP |
853 | union { size_t s; int i; } len; |
854 | union { | |
855 | struct sockaddr sa; | |
856 | struct sockaddr_in sa_in; | |
857 | #if OPENSSL_USE_IPV6 | |
858 | struct sockaddr_in6 sa_in6; | |
859 | #endif | |
860 | } from; | |
861 | } sa; | |
862 | ||
863 | sa.len.s=0; | |
864 | sa.len.i=sizeof(sa.from); | |
865 | memset(&sa.from,0,sizeof(sa.from)); | |
866 | ret=accept(sock,&sa.from.sa,(void *)&sa.len); | |
867 | if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0) | |
868 | { | |
869 | OPENSSL_assert(sa.len.s<=sizeof(sa.from)); | |
2335e8a9 AP |
870 | sa.len.i = (int)sa.len.s; |
871 | /* use sa.len.i from this point */ | |
b34d449c | 872 | } |
d02b48c6 RE |
873 | if (ret == INVALID_SOCKET) |
874 | { | |
924046ce | 875 | if(BIO_sock_should_retry(ret)) return -2; |
58964a49 | 876 | SYSerr(SYS_F_ACCEPT,get_last_socket_error()); |
d02b48c6 RE |
877 | BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); |
878 | goto end; | |
879 | } | |
880 | ||
881 | if (addr == NULL) goto end; | |
882 | ||
481d81cb AP |
883 | #ifdef EAI_FAMILY |
884 | do { | |
885 | char h[NI_MAXHOST],s[NI_MAXSERV]; | |
346ac301 | 886 | size_t nl; |
481d81cb | 887 | static union { void *p; |
2f4c1dc8 | 888 | int (WSAAPI *f)(const struct sockaddr *,size_t/*socklen_t*/, |
481d81cb | 889 | char *,size_t,char *,size_t,int); |
346ac301 | 890 | } p_getnameinfo = {NULL}; |
f81e86d7 AP |
891 | /* 2nd argument to getnameinfo is specified to |
892 | * be socklen_t. Unfortunately there is a number | |
893 | * of environments where socklen_t is not defined. | |
894 | * As it's passed by value, it's safe to pass it | |
895 | * as size_t... <appro> */ | |
481d81cb | 896 | |
346ac301 | 897 | if (p_getnameinfo.p==NULL) |
481d81cb | 898 | { |
346ac301 DSH |
899 | if ((p_getnameinfo.p=DSO_global_lookup("getnameinfo"))==NULL) |
900 | p_getnameinfo.p=(void*)-1; | |
481d81cb | 901 | } |
346ac301 | 902 | if (p_getnameinfo.p==(void *)-1) break; |
481d81cb | 903 | |
b34d449c | 904 | if ((*p_getnameinfo.f)(&sa.from.sa,sa.len.i,h,sizeof(h),s,sizeof(s), |
481d81cb | 905 | NI_NUMERICHOST|NI_NUMERICSERV)) break; |
b34d449c | 906 | nl = strlen(h)+strlen(s)+2; |
481d81cb | 907 | p = *addr; |
346ac301 DSH |
908 | if (p) { *p = '\0'; p = OPENSSL_realloc(p,nl); } |
909 | else { p = OPENSSL_malloc(nl); } | |
481d81cb AP |
910 | if (p==NULL) |
911 | { | |
912 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
913 | goto end; | |
914 | } | |
915 | *addr = p; | |
346ac301 | 916 | BIO_snprintf(*addr,nl,"%s:%s",h,s); |
481d81cb AP |
917 | goto end; |
918 | } while(0); | |
919 | #endif | |
b34d449c AP |
920 | if (sa.from.sa.sa_family != AF_INET) goto end; |
921 | l=ntohl(sa.from.sa_in.sin_addr.s_addr); | |
922 | port=ntohs(sa.from.sa_in.sin_port); | |
d02b48c6 RE |
923 | if (*addr == NULL) |
924 | { | |
26a3a48d | 925 | if ((p=OPENSSL_malloc(24)) == NULL) |
d02b48c6 RE |
926 | { |
927 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
928 | goto end; | |
929 | } | |
930 | *addr=p; | |
931 | } | |
d420ac2c RL |
932 | BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d", |
933 | (unsigned char)(l>>24L)&0xff, | |
934 | (unsigned char)(l>>16L)&0xff, | |
935 | (unsigned char)(l>> 8L)&0xff, | |
936 | (unsigned char)(l )&0xff, | |
937 | port); | |
d02b48c6 RE |
938 | end: |
939 | return(ret); | |
940 | } | |
941 | ||
6b691a5c | 942 | int BIO_set_tcp_ndelay(int s, int on) |
d02b48c6 RE |
943 | { |
944 | int ret=0; | |
945 | #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
946 | int opt; | |
947 | ||
948 | #ifdef SOL_TCP | |
949 | opt=SOL_TCP; | |
950 | #else | |
951 | #ifdef IPPROTO_TCP | |
952 | opt=IPPROTO_TCP; | |
953 | #endif | |
954 | #endif | |
955 | ||
956 | ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); | |
957 | #endif | |
958 | return(ret == 0); | |
959 | } | |
d02b48c6 | 960 | |
6b691a5c | 961 | int BIO_socket_nbio(int s, int mode) |
dfeab068 RE |
962 | { |
963 | int ret= -1; | |
c029841e | 964 | int l; |
dfeab068 RE |
965 | |
966 | l=mode; | |
967 | #ifdef FIONBIO | |
968 | ret=BIO_socket_ioctl(s,FIONBIO,&l); | |
969 | #endif | |
970 | return(ret == 0); | |
971 | } | |
4a1fbd13 | 972 | #endif |