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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 | ||
59 | #ifndef NO_SOCK | |
60 | ||
61 | #include <stdio.h> | |
58964a49 | 62 | #include <stdlib.h> |
d02b48c6 RE |
63 | #include <errno.h> |
64 | #define USE_SOCKETS | |
65 | #include "cryptlib.h" | |
ec577822 | 66 | #include <openssl/bio.h> |
d02b48c6 | 67 | |
d02b48c6 RE |
68 | #ifdef WIN16 |
69 | #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ | |
70 | #else | |
71 | #define SOCKET_PROTOCOL IPPROTO_TCP | |
72 | #endif | |
73 | ||
58964a49 RE |
74 | #ifdef SO_MAXCONN |
75 | #define MAX_LISTEN SOMAXCONN | |
76 | #elif defined(SO_MAXCONN) | |
77 | #define MAX_LISTEN SO_MAXCONN | |
78 | #else | |
79 | #define MAX_LISTEN 32 | |
80 | #endif | |
81 | ||
d02b48c6 RE |
82 | #ifdef WINDOWS |
83 | static int wsa_init_done=0; | |
84 | #endif | |
85 | ||
58964a49 RE |
86 | static unsigned long BIO_ghbn_hits=0L; |
87 | static unsigned long BIO_ghbn_miss=0L; | |
88 | ||
89 | #define GHBN_NUM 4 | |
90 | static struct ghbn_cache_st | |
91 | { | |
92 | char name[129]; | |
93 | struct hostent *ent; | |
94 | unsigned long order; | |
95 | } ghbn_cache[GHBN_NUM]; | |
d02b48c6 | 96 | |
e778802f | 97 | static int get_ip(const char *str,unsigned char *ip); |
58964a49 RE |
98 | static void ghbn_free(struct hostent *a); |
99 | static struct hostent *ghbn_dup(struct hostent *a); | |
6b691a5c | 100 | int BIO_get_host_ip(const char *str, unsigned char *ip) |
d02b48c6 RE |
101 | { |
102 | int i; | |
ba9f2808 BM |
103 | int err = 1; |
104 | int locked = 0; | |
d02b48c6 RE |
105 | struct hostent *he; |
106 | ||
107 | i=get_ip(str,ip); | |
d02b48c6 RE |
108 | if (i < 0) |
109 | { | |
110 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); | |
ba9f2808 | 111 | goto err; |
d02b48c6 | 112 | } |
d02b48c6 | 113 | |
173e243a RL |
114 | /* At this point, we have something that is most probably correct |
115 | in some way, so let's init the socket. */ | |
8c23788d BM |
116 | if (BIO_sock_init() != 1) |
117 | return 0; /* don't generate another error code here */ | |
d02b48c6 | 118 | |
173e243a RL |
119 | /* If the string actually contained an IP address, we need not do |
120 | anything more */ | |
121 | if (i > 0) return(1); | |
122 | ||
123 | /* do a gethostbyname */ | |
ba9f2808 BM |
124 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
125 | locked = 1; | |
126 | he=BIO_gethostbyname(str); | |
127 | if (he == NULL) | |
128 | { | |
129 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); | |
130 | goto err; | |
d02b48c6 | 131 | } |
ba9f2808 BM |
132 | |
133 | /* cast to short because of win16 winsock definition */ | |
134 | if ((short)he->h_addrtype != AF_INET) | |
135 | { | |
136 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
137 | goto err; | |
138 | } | |
139 | for (i=0; i<4; i++) | |
140 | ip[i]=he->h_addr_list[0][i]; | |
141 | err = 0; | |
142 | ||
143 | err: | |
144 | if (locked) | |
145 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); | |
146 | if (err) | |
147 | { | |
148 | ERR_add_error_data(2,"host=",str); | |
149 | return 0; | |
150 | } | |
151 | else | |
152 | return 1; | |
d02b48c6 RE |
153 | } |
154 | ||
6b691a5c | 155 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
d02b48c6 RE |
156 | { |
157 | int i; | |
158 | struct servent *s; | |
159 | ||
160 | if (str == NULL) | |
161 | { | |
162 | BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); | |
163 | return(0); | |
164 | } | |
165 | i=atoi(str); | |
166 | if (i != 0) | |
167 | *port_ptr=(unsigned short)i; | |
168 | else | |
169 | { | |
2a82c7cf | 170 | CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); |
7256ce6a RL |
171 | /* Note: under VMS with SOCKETSHR, it seems like the first |
172 | * parameter is 'char *', instead of 'const char *' | |
173 | */ | |
9d1a01be UM |
174 | s=getservbyname( |
175 | #ifndef CONST_STRICT | |
176 | (char *) | |
177 | #endif | |
178 | str,"tcp"); | |
2a82c7cf BM |
179 | if(s != NULL) |
180 | *port_ptr=ntohs((unsigned short)s->s_port); | |
181 | CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); | |
182 | if(s == NULL) | |
d02b48c6 RE |
183 | { |
184 | if (strcmp(str,"http") == 0) | |
185 | *port_ptr=80; | |
186 | else if (strcmp(str,"telnet") == 0) | |
187 | *port_ptr=23; | |
188 | else if (strcmp(str,"socks") == 0) | |
189 | *port_ptr=1080; | |
190 | else if (strcmp(str,"https") == 0) | |
191 | *port_ptr=443; | |
192 | else if (strcmp(str,"ssl") == 0) | |
193 | *port_ptr=443; | |
194 | else if (strcmp(str,"ftp") == 0) | |
195 | *port_ptr=21; | |
196 | else if (strcmp(str,"gopher") == 0) | |
197 | *port_ptr=70; | |
198 | #if 0 | |
199 | else if (strcmp(str,"wais") == 0) | |
200 | *port_ptr=21; | |
201 | #endif | |
202 | else | |
203 | { | |
58964a49 RE |
204 | SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); |
205 | ERR_add_error_data(3,"service='",str,"'"); | |
d02b48c6 RE |
206 | return(0); |
207 | } | |
d02b48c6 | 208 | } |
d02b48c6 RE |
209 | } |
210 | return(1); | |
211 | } | |
212 | ||
6b691a5c | 213 | int BIO_sock_error(int sock) |
d02b48c6 | 214 | { |
95dc05bc | 215 | int j,i; |
61f5b6f3 | 216 | int size; |
d02b48c6 RE |
217 | |
218 | size=sizeof(int); | |
a1e464f9 DSH |
219 | /* Note: under Windows the third parameter is of type (char *) |
220 | * whereas under other systems it is (void *) if you don't have | |
221 | * a cast it will choke the compiler: if you do have a cast then | |
222 | * you can either go for (char *) or (void *). | |
223 | */ | |
7d7d2cbc | 224 | i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); |
d02b48c6 RE |
225 | if (i < 0) |
226 | return(1); | |
227 | else | |
228 | return(j); | |
229 | } | |
230 | ||
6b691a5c | 231 | long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) |
d02b48c6 | 232 | { |
58964a49 RE |
233 | int i; |
234 | char **p; | |
235 | ||
236 | switch (cmd) | |
237 | { | |
238 | case BIO_GHBN_CTRL_HITS: | |
239 | return(BIO_ghbn_hits); | |
dfeab068 | 240 | /* break; */ |
58964a49 RE |
241 | case BIO_GHBN_CTRL_MISSES: |
242 | return(BIO_ghbn_miss); | |
dfeab068 | 243 | /* break; */ |
58964a49 RE |
244 | case BIO_GHBN_CTRL_CACHE_SIZE: |
245 | return(GHBN_NUM); | |
dfeab068 | 246 | /* break; */ |
58964a49 RE |
247 | case BIO_GHBN_CTRL_GET_ENTRY: |
248 | if ((iarg >= 0) && (iarg <GHBN_NUM) && | |
249 | (ghbn_cache[iarg].order > 0)) | |
250 | { | |
251 | p=(char **)parg; | |
252 | if (p == NULL) return(0); | |
253 | *p=ghbn_cache[iarg].name; | |
254 | ghbn_cache[iarg].name[128]='\0'; | |
255 | return(1); | |
256 | } | |
257 | return(0); | |
dfeab068 | 258 | /* break; */ |
58964a49 RE |
259 | case BIO_GHBN_CTRL_FLUSH: |
260 | for (i=0; i<GHBN_NUM; i++) | |
261 | ghbn_cache[i].order=0; | |
262 | break; | |
263 | default: | |
264 | return(0); | |
265 | } | |
266 | return(1); | |
267 | } | |
268 | ||
6b691a5c | 269 | static struct hostent *ghbn_dup(struct hostent *a) |
58964a49 RE |
270 | { |
271 | struct hostent *ret; | |
272 | int i,j; | |
273 | ||
dfeab068 | 274 | MemCheck_off(); |
26a3a48d | 275 | ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); |
58964a49 RE |
276 | if (ret == NULL) return(NULL); |
277 | memset(ret,0,sizeof(struct hostent)); | |
278 | ||
279 | for (i=0; a->h_aliases[i] != NULL; i++) | |
280 | ; | |
281 | i++; | |
26a3a48d | 282 | ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
283 | if (ret->h_aliases == NULL) |
284 | goto err; | |
285 | memset(ret->h_aliases, 0, i*sizeof(char *)); | |
58964a49 RE |
286 | |
287 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
288 | ; | |
289 | i++; | |
26a3a48d | 290 | ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); |
2a82c7cf BM |
291 | if (ret->h_addr_list == NULL) |
292 | goto err; | |
293 | memset(ret->h_addr_list, 0, i*sizeof(char *)); | |
58964a49 RE |
294 | |
295 | j=strlen(a->h_name)+1; | |
26a3a48d | 296 | if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 297 | memcpy((char *)ret->h_name,a->h_name,j); |
58964a49 RE |
298 | for (i=0; a->h_aliases[i] != NULL; i++) |
299 | { | |
300 | j=strlen(a->h_aliases[i])+1; | |
26a3a48d | 301 | if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; |
690233bc | 302 | memcpy(ret->h_aliases[i],a->h_aliases[i],j); |
58964a49 RE |
303 | } |
304 | ret->h_length=a->h_length; | |
305 | ret->h_addrtype=a->h_addrtype; | |
306 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
307 | { | |
26a3a48d | 308 | if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) |
58964a49 RE |
309 | goto err; |
310 | memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); | |
311 | } | |
dfeab068 RE |
312 | if (0) |
313 | { | |
58964a49 | 314 | err: |
dfeab068 RE |
315 | if (ret != NULL) |
316 | ghbn_free(ret); | |
317 | ret=NULL; | |
318 | } | |
319 | MemCheck_on(); | |
320 | return(ret); | |
58964a49 RE |
321 | } |
322 | ||
6b691a5c | 323 | static void ghbn_free(struct hostent *a) |
58964a49 RE |
324 | { |
325 | int i; | |
326 | ||
e03ddfae BL |
327 | if(a == NULL) |
328 | return; | |
329 | ||
58964a49 RE |
330 | if (a->h_aliases != NULL) |
331 | { | |
332 | for (i=0; a->h_aliases[i] != NULL; i++) | |
26a3a48d RL |
333 | OPENSSL_free(a->h_aliases[i]); |
334 | OPENSSL_free(a->h_aliases); | |
58964a49 RE |
335 | } |
336 | if (a->h_addr_list != NULL) | |
337 | { | |
338 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
26a3a48d RL |
339 | OPENSSL_free(a->h_addr_list[i]); |
340 | OPENSSL_free(a->h_addr_list); | |
58964a49 | 341 | } |
26a3a48d RL |
342 | if (a->h_name != NULL) OPENSSL_free(a->h_name); |
343 | OPENSSL_free(a); | |
58964a49 | 344 | } |
d02b48c6 | 345 | |
6b691a5c | 346 | struct hostent *BIO_gethostbyname(const char *name) |
d02b48c6 RE |
347 | { |
348 | struct hostent *ret; | |
58964a49 | 349 | int i,lowi=0,j; |
d02b48c6 RE |
350 | unsigned long low= (unsigned long)-1; |
351 | ||
58964a49 RE |
352 | /* return(gethostbyname(name)); */ |
353 | ||
ba9f2808 BM |
354 | #if 0 /* It doesn't make sense to use locking here: The function interface |
355 | * is not thread-safe, because threads can never be sure when | |
356 | * some other thread destroys the data they were given a pointer to. | |
357 | */ | |
2a82c7cf | 358 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
ba9f2808 | 359 | #endif |
58964a49 RE |
360 | j=strlen(name); |
361 | if (j < 128) | |
d02b48c6 RE |
362 | { |
363 | for (i=0; i<GHBN_NUM; i++) | |
364 | { | |
365 | if (low > ghbn_cache[i].order) | |
366 | { | |
367 | low=ghbn_cache[i].order; | |
368 | lowi=i; | |
369 | } | |
370 | if (ghbn_cache[i].order > 0) | |
371 | { | |
372 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
373 | break; | |
374 | } | |
375 | } | |
376 | } | |
377 | else | |
378 | i=GHBN_NUM; | |
379 | ||
380 | if (i == GHBN_NUM) /* no hit*/ | |
381 | { | |
382 | BIO_ghbn_miss++; | |
7256ce6a RL |
383 | /* Note: under VMS with SOCKETSHR, it seems like the first |
384 | * parameter is 'char *', instead of 'const char *' | |
385 | */ | |
9d1a01be UM |
386 | ret=gethostbyname( |
387 | #ifndef CONST_STRICT | |
388 | (char *) | |
389 | #endif | |
390 | name); | |
58964a49 | 391 | |
2a82c7cf BM |
392 | if (ret == NULL) |
393 | goto end; | |
394 | if (j > 128) /* too big to cache */ | |
395 | { | |
ba9f2808 BM |
396 | #if 0 /* If we were trying to make this function thread-safe (which |
397 | * is bound to fail), we'd have to give up in this case | |
398 | * (or allocate more memory). */ | |
2a82c7cf | 399 | ret = NULL; |
ba9f2808 | 400 | #endif |
2a82c7cf BM |
401 | goto end; |
402 | } | |
58964a49 | 403 | |
d02b48c6 | 404 | /* else add to cache */ |
58964a49 | 405 | if (ghbn_cache[lowi].ent != NULL) |
64a3b11b | 406 | ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ |
2a82c7cf | 407 | ghbn_cache[lowi].name[0] = '\0'; |
58964a49 | 408 | |
2a82c7cf BM |
409 | if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) |
410 | { | |
411 | BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); | |
412 | goto end; | |
413 | } | |
d02b48c6 | 414 | strncpy(ghbn_cache[lowi].name,name,128); |
d02b48c6 RE |
415 | ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; |
416 | } | |
417 | else | |
418 | { | |
419 | BIO_ghbn_hits++; | |
58964a49 | 420 | ret= ghbn_cache[i].ent; |
d02b48c6 RE |
421 | ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; |
422 | } | |
2a82c7cf | 423 | end: |
ba9f2808 | 424 | #if 0 |
2a82c7cf | 425 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); |
ba9f2808 | 426 | #endif |
d02b48c6 RE |
427 | return(ret); |
428 | } | |
429 | ||
6b691a5c | 430 | int BIO_sock_init(void) |
d02b48c6 RE |
431 | { |
432 | #ifdef WINDOWS | |
433 | static struct WSAData wsa_state; | |
434 | ||
435 | if (!wsa_init_done) | |
436 | { | |
437 | int err; | |
438 | ||
439 | #ifdef SIGINT | |
440 | signal(SIGINT,(void (*)(int))BIO_sock_cleanup); | |
441 | #endif | |
442 | wsa_init_done=1; | |
443 | memset(&wsa_state,0,sizeof(wsa_state)); | |
444 | if (WSAStartup(0x0101,&wsa_state)!=0) | |
445 | { | |
446 | err=WSAGetLastError(); | |
447 | SYSerr(SYS_F_WSASTARTUP,err); | |
448 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
449 | return(-1); | |
450 | } | |
451 | } | |
452 | #endif /* WINDOWS */ | |
453 | return(1); | |
454 | } | |
455 | ||
6b691a5c | 456 | void BIO_sock_cleanup(void) |
d02b48c6 RE |
457 | { |
458 | #ifdef WINDOWS | |
459 | if (wsa_init_done) | |
460 | { | |
461 | wsa_init_done=0; | |
462 | WSACancelBlockingCall(); | |
463 | WSACleanup(); | |
464 | } | |
465 | #endif | |
466 | } | |
467 | ||
7d7d2cbc UM |
468 | #if !defined(VMS) || __VMS_VER >= 70000000 |
469 | ||
6b691a5c | 470 | int BIO_socket_ioctl(int fd, long type, unsigned long *arg) |
d02b48c6 | 471 | { |
58964a49 | 472 | int i; |
d02b48c6 | 473 | |
d02b48c6 | 474 | i=ioctlsocket(fd,type,arg); |
d02b48c6 | 475 | if (i < 0) |
58964a49 | 476 | SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); |
d02b48c6 RE |
477 | return(i); |
478 | } | |
7d7d2cbc | 479 | #endif /* __VMS_VER */ |
d02b48c6 RE |
480 | |
481 | /* The reason I have implemented this instead of using sscanf is because | |
482 | * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ | |
6b691a5c | 483 | static int get_ip(const char *str, unsigned char ip[4]) |
d02b48c6 RE |
484 | { |
485 | unsigned int tmp[4]; | |
486 | int num=0,c,ok=0; | |
487 | ||
488 | tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; | |
489 | ||
490 | for (;;) | |
491 | { | |
492 | c= *(str++); | |
493 | if ((c >= '0') && (c <= '9')) | |
494 | { | |
495 | ok=1; | |
496 | tmp[num]=tmp[num]*10+c-'0'; | |
497 | if (tmp[num] > 255) return(-1); | |
498 | } | |
499 | else if (c == '.') | |
500 | { | |
501 | if (!ok) return(-1); | |
502 | if (num == 3) break; | |
503 | num++; | |
504 | ok=0; | |
505 | } | |
506 | else if ((num == 3) && ok) | |
507 | break; | |
508 | else | |
509 | return(0); | |
510 | } | |
511 | ip[0]=tmp[0]; | |
512 | ip[1]=tmp[1]; | |
513 | ip[2]=tmp[2]; | |
514 | ip[3]=tmp[3]; | |
515 | return(1); | |
516 | } | |
517 | ||
6b691a5c | 518 | int BIO_get_accept_socket(char *host, int bind_mode) |
d02b48c6 RE |
519 | { |
520 | int ret=0; | |
dfeab068 RE |
521 | struct sockaddr_in server,client; |
522 | int s= -1,cs; | |
d02b48c6 | 523 | unsigned char ip[4]; |
def9f431 | 524 | unsigned short port; |
e778802f BL |
525 | char *str,*e; |
526 | const char *h,*p; | |
d02b48c6 | 527 | unsigned long l; |
dfeab068 | 528 | int err_num; |
d02b48c6 | 529 | |
8c23788d | 530 | if (BIO_sock_init() != 1) return(INVALID_SOCKET); |
d02b48c6 RE |
531 | |
532 | if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); | |
533 | ||
534 | h=p=NULL; | |
535 | h=str; | |
536 | for (e=str; *e; e++) | |
537 | { | |
538 | if (*e == ':') | |
539 | { | |
540 | p= &(e[1]); | |
541 | *e='\0'; | |
542 | } | |
543 | else if (*e == '/') | |
544 | { | |
545 | *e='\0'; | |
546 | break; | |
547 | } | |
548 | } | |
549 | ||
550 | if (p == NULL) | |
551 | { | |
552 | p=h; | |
553 | h="*"; | |
554 | } | |
555 | ||
556 | if (!BIO_get_port(p,&port)) return(INVALID_SOCKET); | |
557 | ||
558 | memset((char *)&server,0,sizeof(server)); | |
559 | server.sin_family=AF_INET; | |
def9f431 | 560 | server.sin_port=htons(port); |
d02b48c6 RE |
561 | |
562 | if (strcmp(h,"*") == 0) | |
563 | server.sin_addr.s_addr=INADDR_ANY; | |
564 | else | |
565 | { | |
566 | if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET); | |
567 | l=(unsigned long) | |
568 | ((unsigned long)ip[0]<<24L)| | |
dfeab068 RE |
569 | ((unsigned long)ip[1]<<16L)| |
570 | ((unsigned long)ip[2]<< 8L)| | |
571 | ((unsigned long)ip[3]); | |
d02b48c6 RE |
572 | server.sin_addr.s_addr=htonl(l); |
573 | } | |
574 | ||
dfeab068 | 575 | again: |
d02b48c6 RE |
576 | s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); |
577 | if (s == INVALID_SOCKET) | |
578 | { | |
58964a49 RE |
579 | SYSerr(SYS_F_SOCKET,get_last_socket_error()); |
580 | ERR_add_error_data(3,"port='",host,"'"); | |
581 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); | |
d02b48c6 RE |
582 | goto err; |
583 | } | |
dfeab068 RE |
584 | |
585 | #ifdef SO_REUSEADDR | |
586 | if (bind_mode == BIO_BIND_REUSEADDR) | |
587 | { | |
588 | int i=1; | |
589 | ||
590 | ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); | |
591 | bind_mode=BIO_BIND_NORMAL; | |
592 | } | |
593 | #endif | |
d02b48c6 RE |
594 | if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) |
595 | { | |
dfeab068 RE |
596 | #ifdef SO_REUSEADDR |
597 | err_num=get_last_socket_error(); | |
598 | if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && | |
599 | (err_num == EADDRINUSE)) | |
600 | { | |
601 | memcpy((char *)&client,(char *)&server,sizeof(server)); | |
602 | if (strcmp(h,"*") == 0) | |
603 | client.sin_addr.s_addr=htonl(0x7F000001); | |
604 | cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); | |
605 | if (cs != INVALID_SOCKET) | |
606 | { | |
607 | int ii; | |
608 | ii=connect(cs,(struct sockaddr *)&client, | |
609 | sizeof(client)); | |
610 | closesocket(cs); | |
611 | if (ii == INVALID_SOCKET) | |
612 | { | |
613 | bind_mode=BIO_BIND_REUSEADDR; | |
614 | closesocket(s); | |
615 | goto again; | |
616 | } | |
617 | /* else error */ | |
618 | } | |
619 | /* else error */ | |
620 | } | |
621 | #endif | |
622 | SYSerr(SYS_F_BIND,err_num); | |
58964a49 | 623 | ERR_add_error_data(3,"port='",host,"'"); |
d02b48c6 RE |
624 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); |
625 | goto err; | |
626 | } | |
58964a49 | 627 | if (listen(s,MAX_LISTEN) == -1) |
d02b48c6 | 628 | { |
58964a49 RE |
629 | SYSerr(SYS_F_BIND,get_last_socket_error()); |
630 | ERR_add_error_data(3,"port='",host,"'"); | |
d02b48c6 RE |
631 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); |
632 | goto err; | |
633 | } | |
634 | ret=1; | |
635 | err: | |
26a3a48d | 636 | if (str != NULL) OPENSSL_free(str); |
d02b48c6 RE |
637 | if ((ret == 0) && (s != INVALID_SOCKET)) |
638 | { | |
d02b48c6 | 639 | closesocket(s); |
d02b48c6 RE |
640 | s= INVALID_SOCKET; |
641 | } | |
642 | return(s); | |
643 | } | |
644 | ||
6b691a5c | 645 | int BIO_accept(int sock, char **addr) |
d02b48c6 RE |
646 | { |
647 | int ret=INVALID_SOCKET; | |
648 | static struct sockaddr_in from; | |
649 | unsigned long l; | |
def9f431 | 650 | unsigned short port; |
61f5b6f3 | 651 | int len; |
d02b48c6 RE |
652 | char *p; |
653 | ||
654 | memset((char *)&from,0,sizeof(from)); | |
655 | len=sizeof(from); | |
75e0770d | 656 | /* Note: under VMS with SOCKETSHR the fourth parameter is currently |
7d7d2cbc UM |
657 | * of type (int *) whereas under other systems it is (void *) if |
658 | * you don't have a cast it will choke the compiler: if you do | |
659 | * have a cast then you can either go for (int *) or (void *). | |
660 | */ | |
661 | ret=accept(sock,(struct sockaddr *)&from,(void *)&len); | |
d02b48c6 RE |
662 | if (ret == INVALID_SOCKET) |
663 | { | |
924046ce | 664 | if(BIO_sock_should_retry(ret)) return -2; |
58964a49 | 665 | SYSerr(SYS_F_ACCEPT,get_last_socket_error()); |
d02b48c6 RE |
666 | BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); |
667 | goto end; | |
668 | } | |
669 | ||
670 | if (addr == NULL) goto end; | |
671 | ||
672 | l=ntohl(from.sin_addr.s_addr); | |
673 | port=ntohs(from.sin_port); | |
674 | if (*addr == NULL) | |
675 | { | |
26a3a48d | 676 | if ((p=OPENSSL_malloc(24)) == NULL) |
d02b48c6 RE |
677 | { |
678 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
679 | goto end; | |
680 | } | |
681 | *addr=p; | |
682 | } | |
683 | sprintf(*addr,"%d.%d.%d.%d:%d", | |
684 | (unsigned char)(l>>24L)&0xff, | |
685 | (unsigned char)(l>>16L)&0xff, | |
686 | (unsigned char)(l>> 8L)&0xff, | |
687 | (unsigned char)(l )&0xff, | |
688 | port); | |
689 | end: | |
690 | return(ret); | |
691 | } | |
692 | ||
6b691a5c | 693 | int BIO_set_tcp_ndelay(int s, int on) |
d02b48c6 RE |
694 | { |
695 | int ret=0; | |
696 | #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
697 | int opt; | |
698 | ||
699 | #ifdef SOL_TCP | |
700 | opt=SOL_TCP; | |
701 | #else | |
702 | #ifdef IPPROTO_TCP | |
703 | opt=IPPROTO_TCP; | |
704 | #endif | |
705 | #endif | |
706 | ||
707 | ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); | |
708 | #endif | |
709 | return(ret == 0); | |
710 | } | |
711 | #endif | |
712 | ||
6b691a5c | 713 | int BIO_socket_nbio(int s, int mode) |
dfeab068 RE |
714 | { |
715 | int ret= -1; | |
716 | unsigned long l; | |
717 | ||
718 | l=mode; | |
719 | #ifdef FIONBIO | |
720 | ret=BIO_socket_ioctl(s,FIONBIO,&l); | |
721 | #endif | |
722 | return(ret == 0); | |
723 | } |