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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); | |
108 | if (i > 0) return(1); | |
109 | if (i < 0) | |
110 | { | |
111 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); | |
ba9f2808 | 112 | goto err; |
d02b48c6 | 113 | } |
d02b48c6 | 114 | |
ba9f2808 BM |
115 | /* do a gethostbyname */ |
116 | if (!BIO_sock_init()) | |
117 | return(0); /* don't generate another error code here */ | |
d02b48c6 | 118 | |
ba9f2808 BM |
119 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
120 | locked = 1; | |
121 | he=BIO_gethostbyname(str); | |
122 | if (he == NULL) | |
123 | { | |
124 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); | |
125 | goto err; | |
d02b48c6 | 126 | } |
ba9f2808 BM |
127 | |
128 | /* cast to short because of win16 winsock definition */ | |
129 | if ((short)he->h_addrtype != AF_INET) | |
130 | { | |
131 | BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
132 | goto err; | |
133 | } | |
134 | for (i=0; i<4; i++) | |
135 | ip[i]=he->h_addr_list[0][i]; | |
136 | err = 0; | |
137 | ||
138 | err: | |
139 | if (locked) | |
140 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); | |
141 | if (err) | |
142 | { | |
143 | ERR_add_error_data(2,"host=",str); | |
144 | return 0; | |
145 | } | |
146 | else | |
147 | return 1; | |
d02b48c6 RE |
148 | } |
149 | ||
6b691a5c | 150 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
d02b48c6 RE |
151 | { |
152 | int i; | |
153 | struct servent *s; | |
154 | ||
155 | if (str == NULL) | |
156 | { | |
157 | BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); | |
158 | return(0); | |
159 | } | |
160 | i=atoi(str); | |
161 | if (i != 0) | |
162 | *port_ptr=(unsigned short)i; | |
163 | else | |
164 | { | |
2a82c7cf | 165 | CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); |
7256ce6a RL |
166 | /* Note: under VMS with SOCKETSHR, it seems like the first |
167 | * parameter is 'char *', instead of 'const char *' | |
168 | */ | |
9d1a01be UM |
169 | s=getservbyname( |
170 | #ifndef CONST_STRICT | |
171 | (char *) | |
172 | #endif | |
173 | str,"tcp"); | |
2a82c7cf BM |
174 | if(s != NULL) |
175 | *port_ptr=ntohs((unsigned short)s->s_port); | |
176 | CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); | |
177 | if(s == NULL) | |
d02b48c6 RE |
178 | { |
179 | if (strcmp(str,"http") == 0) | |
180 | *port_ptr=80; | |
181 | else if (strcmp(str,"telnet") == 0) | |
182 | *port_ptr=23; | |
183 | else if (strcmp(str,"socks") == 0) | |
184 | *port_ptr=1080; | |
185 | else if (strcmp(str,"https") == 0) | |
186 | *port_ptr=443; | |
187 | else if (strcmp(str,"ssl") == 0) | |
188 | *port_ptr=443; | |
189 | else if (strcmp(str,"ftp") == 0) | |
190 | *port_ptr=21; | |
191 | else if (strcmp(str,"gopher") == 0) | |
192 | *port_ptr=70; | |
193 | #if 0 | |
194 | else if (strcmp(str,"wais") == 0) | |
195 | *port_ptr=21; | |
196 | #endif | |
197 | else | |
198 | { | |
58964a49 RE |
199 | SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); |
200 | ERR_add_error_data(3,"service='",str,"'"); | |
d02b48c6 RE |
201 | return(0); |
202 | } | |
d02b48c6 | 203 | } |
d02b48c6 RE |
204 | } |
205 | return(1); | |
206 | } | |
207 | ||
6b691a5c | 208 | int BIO_sock_error(int sock) |
d02b48c6 | 209 | { |
95dc05bc | 210 | int j,i; |
61f5b6f3 | 211 | int size; |
d02b48c6 RE |
212 | |
213 | size=sizeof(int); | |
a1e464f9 DSH |
214 | /* Note: under Windows the third parameter is of type (char *) |
215 | * whereas under other systems it is (void *) if you don't have | |
216 | * a cast it will choke the compiler: if you do have a cast then | |
217 | * you can either go for (char *) or (void *). | |
218 | */ | |
7d7d2cbc | 219 | i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); |
d02b48c6 RE |
220 | if (i < 0) |
221 | return(1); | |
222 | else | |
223 | return(j); | |
224 | } | |
225 | ||
6b691a5c | 226 | long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) |
d02b48c6 | 227 | { |
58964a49 RE |
228 | int i; |
229 | char **p; | |
230 | ||
231 | switch (cmd) | |
232 | { | |
233 | case BIO_GHBN_CTRL_HITS: | |
234 | return(BIO_ghbn_hits); | |
dfeab068 | 235 | /* break; */ |
58964a49 RE |
236 | case BIO_GHBN_CTRL_MISSES: |
237 | return(BIO_ghbn_miss); | |
dfeab068 | 238 | /* break; */ |
58964a49 RE |
239 | case BIO_GHBN_CTRL_CACHE_SIZE: |
240 | return(GHBN_NUM); | |
dfeab068 | 241 | /* break; */ |
58964a49 RE |
242 | case BIO_GHBN_CTRL_GET_ENTRY: |
243 | if ((iarg >= 0) && (iarg <GHBN_NUM) && | |
244 | (ghbn_cache[iarg].order > 0)) | |
245 | { | |
246 | p=(char **)parg; | |
247 | if (p == NULL) return(0); | |
248 | *p=ghbn_cache[iarg].name; | |
249 | ghbn_cache[iarg].name[128]='\0'; | |
250 | return(1); | |
251 | } | |
252 | return(0); | |
dfeab068 | 253 | /* break; */ |
58964a49 RE |
254 | case BIO_GHBN_CTRL_FLUSH: |
255 | for (i=0; i<GHBN_NUM; i++) | |
256 | ghbn_cache[i].order=0; | |
257 | break; | |
258 | default: | |
259 | return(0); | |
260 | } | |
261 | return(1); | |
262 | } | |
263 | ||
6b691a5c | 264 | static struct hostent *ghbn_dup(struct hostent *a) |
58964a49 RE |
265 | { |
266 | struct hostent *ret; | |
267 | int i,j; | |
268 | ||
dfeab068 RE |
269 | MemCheck_off(); |
270 | ret=(struct hostent *)Malloc(sizeof(struct hostent)); | |
58964a49 RE |
271 | if (ret == NULL) return(NULL); |
272 | memset(ret,0,sizeof(struct hostent)); | |
273 | ||
274 | for (i=0; a->h_aliases[i] != NULL; i++) | |
275 | ; | |
276 | i++; | |
2a82c7cf BM |
277 | ret->h_aliases = (char **)Malloc(i*sizeof(char *)); |
278 | if (ret->h_aliases == NULL) | |
279 | goto err; | |
280 | memset(ret->h_aliases, 0, i*sizeof(char *)); | |
58964a49 RE |
281 | |
282 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
283 | ; | |
284 | i++; | |
2a82c7cf BM |
285 | ret->h_addr_list=(char **)Malloc(i*sizeof(char *)); |
286 | if (ret->h_addr_list == NULL) | |
287 | goto err; | |
288 | memset(ret->h_addr_list, 0, i*sizeof(char *)); | |
58964a49 RE |
289 | |
290 | j=strlen(a->h_name)+1; | |
dfeab068 | 291 | if ((ret->h_name=Malloc(j)) == NULL) goto err; |
690233bc | 292 | memcpy((char *)ret->h_name,a->h_name,j); |
58964a49 RE |
293 | for (i=0; a->h_aliases[i] != NULL; i++) |
294 | { | |
295 | j=strlen(a->h_aliases[i])+1; | |
dfeab068 | 296 | if ((ret->h_aliases[i]=Malloc(j)) == NULL) goto err; |
690233bc | 297 | memcpy(ret->h_aliases[i],a->h_aliases[i],j); |
58964a49 RE |
298 | } |
299 | ret->h_length=a->h_length; | |
300 | ret->h_addrtype=a->h_addrtype; | |
301 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
302 | { | |
dfeab068 | 303 | if ((ret->h_addr_list[i]=Malloc(a->h_length)) == NULL) |
58964a49 RE |
304 | goto err; |
305 | memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); | |
306 | } | |
dfeab068 RE |
307 | if (0) |
308 | { | |
58964a49 | 309 | err: |
dfeab068 RE |
310 | if (ret != NULL) |
311 | ghbn_free(ret); | |
312 | ret=NULL; | |
313 | } | |
314 | MemCheck_on(); | |
315 | return(ret); | |
58964a49 RE |
316 | } |
317 | ||
6b691a5c | 318 | static void ghbn_free(struct hostent *a) |
58964a49 RE |
319 | { |
320 | int i; | |
321 | ||
e03ddfae BL |
322 | if(a == NULL) |
323 | return; | |
324 | ||
58964a49 RE |
325 | if (a->h_aliases != NULL) |
326 | { | |
327 | for (i=0; a->h_aliases[i] != NULL; i++) | |
dfeab068 RE |
328 | Free(a->h_aliases[i]); |
329 | Free(a->h_aliases); | |
58964a49 RE |
330 | } |
331 | if (a->h_addr_list != NULL) | |
332 | { | |
333 | for (i=0; a->h_addr_list[i] != NULL; i++) | |
dfeab068 RE |
334 | Free(a->h_addr_list[i]); |
335 | Free(a->h_addr_list); | |
58964a49 | 336 | } |
51ca375e | 337 | if (a->h_name != NULL) Free(a->h_name); |
dfeab068 | 338 | Free(a); |
58964a49 | 339 | } |
d02b48c6 | 340 | |
6b691a5c | 341 | struct hostent *BIO_gethostbyname(const char *name) |
d02b48c6 RE |
342 | { |
343 | struct hostent *ret; | |
58964a49 | 344 | int i,lowi=0,j; |
d02b48c6 RE |
345 | unsigned long low= (unsigned long)-1; |
346 | ||
58964a49 RE |
347 | /* return(gethostbyname(name)); */ |
348 | ||
ba9f2808 BM |
349 | #if 0 /* It doesn't make sense to use locking here: The function interface |
350 | * is not thread-safe, because threads can never be sure when | |
351 | * some other thread destroys the data they were given a pointer to. | |
352 | */ | |
2a82c7cf | 353 | CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); |
ba9f2808 | 354 | #endif |
58964a49 RE |
355 | j=strlen(name); |
356 | if (j < 128) | |
d02b48c6 RE |
357 | { |
358 | for (i=0; i<GHBN_NUM; i++) | |
359 | { | |
360 | if (low > ghbn_cache[i].order) | |
361 | { | |
362 | low=ghbn_cache[i].order; | |
363 | lowi=i; | |
364 | } | |
365 | if (ghbn_cache[i].order > 0) | |
366 | { | |
367 | if (strncmp(name,ghbn_cache[i].name,128) == 0) | |
368 | break; | |
369 | } | |
370 | } | |
371 | } | |
372 | else | |
373 | i=GHBN_NUM; | |
374 | ||
375 | if (i == GHBN_NUM) /* no hit*/ | |
376 | { | |
377 | BIO_ghbn_miss++; | |
7256ce6a RL |
378 | /* Note: under VMS with SOCKETSHR, it seems like the first |
379 | * parameter is 'char *', instead of 'const char *' | |
380 | */ | |
9d1a01be UM |
381 | ret=gethostbyname( |
382 | #ifndef CONST_STRICT | |
383 | (char *) | |
384 | #endif | |
385 | name); | |
58964a49 | 386 | |
2a82c7cf BM |
387 | if (ret == NULL) |
388 | goto end; | |
389 | if (j > 128) /* too big to cache */ | |
390 | { | |
ba9f2808 BM |
391 | #if 0 /* If we were trying to make this function thread-safe (which |
392 | * is bound to fail), we'd have to give up in this case | |
393 | * (or allocate more memory). */ | |
2a82c7cf | 394 | ret = NULL; |
ba9f2808 | 395 | #endif |
2a82c7cf BM |
396 | goto end; |
397 | } | |
58964a49 | 398 | |
d02b48c6 | 399 | /* else add to cache */ |
58964a49 | 400 | if (ghbn_cache[lowi].ent != NULL) |
64a3b11b | 401 | ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ |
2a82c7cf | 402 | ghbn_cache[lowi].name[0] = '\0'; |
58964a49 | 403 | |
2a82c7cf BM |
404 | if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) |
405 | { | |
406 | BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); | |
407 | goto end; | |
408 | } | |
d02b48c6 | 409 | strncpy(ghbn_cache[lowi].name,name,128); |
d02b48c6 RE |
410 | ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; |
411 | } | |
412 | else | |
413 | { | |
414 | BIO_ghbn_hits++; | |
58964a49 | 415 | ret= ghbn_cache[i].ent; |
d02b48c6 RE |
416 | ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; |
417 | } | |
2a82c7cf | 418 | end: |
ba9f2808 | 419 | #if 0 |
2a82c7cf | 420 | CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); |
ba9f2808 | 421 | #endif |
d02b48c6 RE |
422 | return(ret); |
423 | } | |
424 | ||
6b691a5c | 425 | int BIO_sock_init(void) |
d02b48c6 RE |
426 | { |
427 | #ifdef WINDOWS | |
428 | static struct WSAData wsa_state; | |
429 | ||
430 | if (!wsa_init_done) | |
431 | { | |
432 | int err; | |
433 | ||
434 | #ifdef SIGINT | |
435 | signal(SIGINT,(void (*)(int))BIO_sock_cleanup); | |
436 | #endif | |
437 | wsa_init_done=1; | |
438 | memset(&wsa_state,0,sizeof(wsa_state)); | |
439 | if (WSAStartup(0x0101,&wsa_state)!=0) | |
440 | { | |
441 | err=WSAGetLastError(); | |
442 | SYSerr(SYS_F_WSASTARTUP,err); | |
443 | BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); | |
444 | return(-1); | |
445 | } | |
446 | } | |
447 | #endif /* WINDOWS */ | |
448 | return(1); | |
449 | } | |
450 | ||
6b691a5c | 451 | void BIO_sock_cleanup(void) |
d02b48c6 RE |
452 | { |
453 | #ifdef WINDOWS | |
454 | if (wsa_init_done) | |
455 | { | |
456 | wsa_init_done=0; | |
457 | WSACancelBlockingCall(); | |
458 | WSACleanup(); | |
459 | } | |
460 | #endif | |
461 | } | |
462 | ||
7d7d2cbc UM |
463 | #if !defined(VMS) || __VMS_VER >= 70000000 |
464 | ||
6b691a5c | 465 | int BIO_socket_ioctl(int fd, long type, unsigned long *arg) |
d02b48c6 | 466 | { |
58964a49 | 467 | int i; |
d02b48c6 | 468 | |
d02b48c6 | 469 | i=ioctlsocket(fd,type,arg); |
d02b48c6 | 470 | if (i < 0) |
58964a49 | 471 | SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); |
d02b48c6 RE |
472 | return(i); |
473 | } | |
7d7d2cbc | 474 | #endif /* __VMS_VER */ |
d02b48c6 RE |
475 | |
476 | /* The reason I have implemented this instead of using sscanf is because | |
477 | * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ | |
6b691a5c | 478 | static int get_ip(const char *str, unsigned char ip[4]) |
d02b48c6 RE |
479 | { |
480 | unsigned int tmp[4]; | |
481 | int num=0,c,ok=0; | |
482 | ||
483 | tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; | |
484 | ||
485 | for (;;) | |
486 | { | |
487 | c= *(str++); | |
488 | if ((c >= '0') && (c <= '9')) | |
489 | { | |
490 | ok=1; | |
491 | tmp[num]=tmp[num]*10+c-'0'; | |
492 | if (tmp[num] > 255) return(-1); | |
493 | } | |
494 | else if (c == '.') | |
495 | { | |
496 | if (!ok) return(-1); | |
497 | if (num == 3) break; | |
498 | num++; | |
499 | ok=0; | |
500 | } | |
501 | else if ((num == 3) && ok) | |
502 | break; | |
503 | else | |
504 | return(0); | |
505 | } | |
506 | ip[0]=tmp[0]; | |
507 | ip[1]=tmp[1]; | |
508 | ip[2]=tmp[2]; | |
509 | ip[3]=tmp[3]; | |
510 | return(1); | |
511 | } | |
512 | ||
6b691a5c | 513 | int BIO_get_accept_socket(char *host, int bind_mode) |
d02b48c6 RE |
514 | { |
515 | int ret=0; | |
dfeab068 RE |
516 | struct sockaddr_in server,client; |
517 | int s= -1,cs; | |
d02b48c6 | 518 | unsigned char ip[4]; |
def9f431 | 519 | unsigned short port; |
e778802f BL |
520 | char *str,*e; |
521 | const char *h,*p; | |
d02b48c6 | 522 | unsigned long l; |
dfeab068 | 523 | int err_num; |
d02b48c6 RE |
524 | |
525 | if (!BIO_sock_init()) return(INVALID_SOCKET); | |
526 | ||
527 | if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); | |
528 | ||
529 | h=p=NULL; | |
530 | h=str; | |
531 | for (e=str; *e; e++) | |
532 | { | |
533 | if (*e == ':') | |
534 | { | |
535 | p= &(e[1]); | |
536 | *e='\0'; | |
537 | } | |
538 | else if (*e == '/') | |
539 | { | |
540 | *e='\0'; | |
541 | break; | |
542 | } | |
543 | } | |
544 | ||
545 | if (p == NULL) | |
546 | { | |
547 | p=h; | |
548 | h="*"; | |
549 | } | |
550 | ||
551 | if (!BIO_get_port(p,&port)) return(INVALID_SOCKET); | |
552 | ||
553 | memset((char *)&server,0,sizeof(server)); | |
554 | server.sin_family=AF_INET; | |
def9f431 | 555 | server.sin_port=htons(port); |
d02b48c6 RE |
556 | |
557 | if (strcmp(h,"*") == 0) | |
558 | server.sin_addr.s_addr=INADDR_ANY; | |
559 | else | |
560 | { | |
561 | if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET); | |
562 | l=(unsigned long) | |
563 | ((unsigned long)ip[0]<<24L)| | |
dfeab068 RE |
564 | ((unsigned long)ip[1]<<16L)| |
565 | ((unsigned long)ip[2]<< 8L)| | |
566 | ((unsigned long)ip[3]); | |
d02b48c6 RE |
567 | server.sin_addr.s_addr=htonl(l); |
568 | } | |
569 | ||
dfeab068 | 570 | again: |
d02b48c6 RE |
571 | s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); |
572 | if (s == INVALID_SOCKET) | |
573 | { | |
58964a49 RE |
574 | SYSerr(SYS_F_SOCKET,get_last_socket_error()); |
575 | ERR_add_error_data(3,"port='",host,"'"); | |
576 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); | |
d02b48c6 RE |
577 | goto err; |
578 | } | |
dfeab068 RE |
579 | |
580 | #ifdef SO_REUSEADDR | |
581 | if (bind_mode == BIO_BIND_REUSEADDR) | |
582 | { | |
583 | int i=1; | |
584 | ||
585 | ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); | |
586 | bind_mode=BIO_BIND_NORMAL; | |
587 | } | |
588 | #endif | |
d02b48c6 RE |
589 | if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) |
590 | { | |
dfeab068 RE |
591 | #ifdef SO_REUSEADDR |
592 | err_num=get_last_socket_error(); | |
593 | if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && | |
594 | (err_num == EADDRINUSE)) | |
595 | { | |
596 | memcpy((char *)&client,(char *)&server,sizeof(server)); | |
597 | if (strcmp(h,"*") == 0) | |
598 | client.sin_addr.s_addr=htonl(0x7F000001); | |
599 | cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); | |
600 | if (cs != INVALID_SOCKET) | |
601 | { | |
602 | int ii; | |
603 | ii=connect(cs,(struct sockaddr *)&client, | |
604 | sizeof(client)); | |
605 | closesocket(cs); | |
606 | if (ii == INVALID_SOCKET) | |
607 | { | |
608 | bind_mode=BIO_BIND_REUSEADDR; | |
609 | closesocket(s); | |
610 | goto again; | |
611 | } | |
612 | /* else error */ | |
613 | } | |
614 | /* else error */ | |
615 | } | |
616 | #endif | |
617 | SYSerr(SYS_F_BIND,err_num); | |
58964a49 | 618 | ERR_add_error_data(3,"port='",host,"'"); |
d02b48c6 RE |
619 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); |
620 | goto err; | |
621 | } | |
58964a49 | 622 | if (listen(s,MAX_LISTEN) == -1) |
d02b48c6 | 623 | { |
58964a49 RE |
624 | SYSerr(SYS_F_BIND,get_last_socket_error()); |
625 | ERR_add_error_data(3,"port='",host,"'"); | |
d02b48c6 RE |
626 | BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); |
627 | goto err; | |
628 | } | |
629 | ret=1; | |
630 | err: | |
631 | if (str != NULL) Free(str); | |
632 | if ((ret == 0) && (s != INVALID_SOCKET)) | |
633 | { | |
d02b48c6 | 634 | closesocket(s); |
d02b48c6 RE |
635 | s= INVALID_SOCKET; |
636 | } | |
637 | return(s); | |
638 | } | |
639 | ||
6b691a5c | 640 | int BIO_accept(int sock, char **addr) |
d02b48c6 RE |
641 | { |
642 | int ret=INVALID_SOCKET; | |
643 | static struct sockaddr_in from; | |
644 | unsigned long l; | |
def9f431 | 645 | unsigned short port; |
61f5b6f3 | 646 | int len; |
d02b48c6 RE |
647 | char *p; |
648 | ||
649 | memset((char *)&from,0,sizeof(from)); | |
650 | len=sizeof(from); | |
75e0770d | 651 | /* Note: under VMS with SOCKETSHR the fourth parameter is currently |
7d7d2cbc UM |
652 | * of type (int *) whereas under other systems it is (void *) if |
653 | * you don't have a cast it will choke the compiler: if you do | |
654 | * have a cast then you can either go for (int *) or (void *). | |
655 | */ | |
656 | ret=accept(sock,(struct sockaddr *)&from,(void *)&len); | |
d02b48c6 RE |
657 | if (ret == INVALID_SOCKET) |
658 | { | |
58964a49 | 659 | SYSerr(SYS_F_ACCEPT,get_last_socket_error()); |
d02b48c6 RE |
660 | BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); |
661 | goto end; | |
662 | } | |
663 | ||
664 | if (addr == NULL) goto end; | |
665 | ||
666 | l=ntohl(from.sin_addr.s_addr); | |
667 | port=ntohs(from.sin_port); | |
668 | if (*addr == NULL) | |
669 | { | |
670 | if ((p=Malloc(24)) == NULL) | |
671 | { | |
672 | BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); | |
673 | goto end; | |
674 | } | |
675 | *addr=p; | |
676 | } | |
677 | sprintf(*addr,"%d.%d.%d.%d:%d", | |
678 | (unsigned char)(l>>24L)&0xff, | |
679 | (unsigned char)(l>>16L)&0xff, | |
680 | (unsigned char)(l>> 8L)&0xff, | |
681 | (unsigned char)(l )&0xff, | |
682 | port); | |
683 | end: | |
684 | return(ret); | |
685 | } | |
686 | ||
6b691a5c | 687 | int BIO_set_tcp_ndelay(int s, int on) |
d02b48c6 RE |
688 | { |
689 | int ret=0; | |
690 | #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
691 | int opt; | |
692 | ||
693 | #ifdef SOL_TCP | |
694 | opt=SOL_TCP; | |
695 | #else | |
696 | #ifdef IPPROTO_TCP | |
697 | opt=IPPROTO_TCP; | |
698 | #endif | |
699 | #endif | |
700 | ||
701 | ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); | |
702 | #endif | |
703 | return(ret == 0); | |
704 | } | |
705 | #endif | |
706 | ||
6b691a5c | 707 | int BIO_socket_nbio(int s, int mode) |
dfeab068 RE |
708 | { |
709 | int ret= -1; | |
710 | unsigned long l; | |
711 | ||
712 | l=mode; | |
713 | #ifdef FIONBIO | |
714 | ret=BIO_socket_ioctl(s,FIONBIO,&l); | |
715 | #endif | |
716 | return(ret == 0); | |
717 | } |