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