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-rw-r--r--src/lib/libcrypto/bio/bss_conn.c618
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diff --git a/src/lib/libcrypto/bio/bss_conn.c b/src/lib/libcrypto/bio/bss_conn.c
deleted file mode 100644
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--- a/src/lib/libcrypto/bio/bss_conn.c
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1/* crypto/bio/bss_conn.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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>
62#include <errno.h>
63#define USE_SOCKETS
64#include "cryptlib.h"
65#include <openssl/bio.h>
66
67#ifdef WIN16
68#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
69#else
70#define SOCKET_PROTOCOL IPPROTO_TCP
71#endif
72
73#if (defined(VMS) && __VMS_VER < 70000000)
74/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
75#undef FIONBIO
76#endif
77
78
79typedef struct bio_connect_st
80 {
81 int state;
82
83 char *param_hostname;
84 char *param_port;
85 int nbio;
86
87 unsigned char ip[4];
88 unsigned short port;
89
90 struct sockaddr_in them;
91
92 /* int socket; this will be kept in bio->num so that it is
93 * compatable with the bss_sock bio */
94
95 /* called when the connection is initially made
96 * callback(BIO,state,ret); The callback should return
97 * 'ret'. state is for compatablity with the ssl info_callback */
98 int (*info_callback)();
99 } BIO_CONNECT;
100
101static int conn_write(BIO *h,char *buf,int num);
102static int conn_read(BIO *h,char *buf,int size);
103static int conn_puts(BIO *h,char *str);
104static long conn_ctrl(BIO *h,int cmd,long arg1,char *arg2);
105static int conn_new(BIO *h);
106static int conn_free(BIO *data);
107
108static int conn_state(BIO *b, BIO_CONNECT *c);
109static void conn_close_socket(BIO *data);
110BIO_CONNECT *BIO_CONNECT_new(void );
111void BIO_CONNECT_free(BIO_CONNECT *a);
112
113static BIO_METHOD methods_connectp=
114 {
115 BIO_TYPE_CONNECT,
116 "socket connect",
117 conn_write,
118 conn_read,
119 conn_puts,
120 NULL, /* connect_gets, */
121 conn_ctrl,
122 conn_new,
123 conn_free,
124 };
125
126static int conn_state(BIO *b, BIO_CONNECT *c)
127 {
128 int ret= -1,i;
129 unsigned long l;
130 char *p,*q;
131 int (*cb)()=NULL;
132
133 if (c->info_callback != NULL)
134 cb=c->info_callback;
135
136 for (;;)
137 {
138 switch (c->state)
139 {
140 case BIO_CONN_S_BEFORE:
141 p=c->param_hostname;
142 if (p == NULL)
143 {
144 BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTNAME_SPECIFIED);
145 goto exit_loop;
146 }
147 for ( ; *p != '\0'; p++)
148 {
149 if ((*p == ':') || (*p == '/')) break;
150 }
151
152 i= *p;
153 if ((i == ':') || (i == '/'))
154 {
155
156 *(p++)='\0';
157 if (i == ':')
158 {
159 for (q=p; *q; q++)
160 if (*q == '/')
161 {
162 *q='\0';
163 break;
164 }
165 if (c->param_port != NULL)
166 Free(c->param_port);
167 c->param_port=BUF_strdup(p);
168 }
169 }
170
171 if (c->param_port == NULL)
172 {
173 BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
174 ERR_add_error_data(2,"host=",c->param_hostname);
175 goto exit_loop;
176 }
177 c->state=BIO_CONN_S_GET_IP;
178 break;
179
180 case BIO_CONN_S_GET_IP:
181 if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
182 goto exit_loop;
183 c->state=BIO_CONN_S_GET_PORT;
184 break;
185
186 case BIO_CONN_S_GET_PORT:
187 if (c->param_port == NULL)
188 {
189 abort();
190 goto exit_loop;
191 }
192 else if (BIO_get_port(c->param_port,&c->port) <= 0)
193 goto exit_loop;
194 c->state=BIO_CONN_S_CREATE_SOCKET;
195 break;
196
197 case BIO_CONN_S_CREATE_SOCKET:
198 /* now setup address */
199 memset((char *)&c->them,0,sizeof(c->them));
200 c->them.sin_family=AF_INET;
201 c->them.sin_port=htons((unsigned short)c->port);
202 l=(unsigned long)
203 ((unsigned long)c->ip[0]<<24L)|
204 ((unsigned long)c->ip[1]<<16L)|
205 ((unsigned long)c->ip[2]<< 8L)|
206 ((unsigned long)c->ip[3]);
207 c->them.sin_addr.s_addr=htonl(l);
208 c->state=BIO_CONN_S_CREATE_SOCKET;
209
210 ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
211 if (ret == INVALID_SOCKET)
212 {
213 SYSerr(SYS_F_SOCKET,get_last_socket_error());
214 ERR_add_error_data(4,"host=",c->param_hostname,
215 ":",c->param_port);
216 BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
217 goto exit_loop;
218 }
219 b->num=ret;
220 c->state=BIO_CONN_S_NBIO;
221 break;
222
223 case BIO_CONN_S_NBIO:
224 if (c->nbio)
225 {
226 if (!BIO_socket_nbio(b->num,1))
227 {
228 BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
229 ERR_add_error_data(4,"host=",
230 c->param_hostname,
231 ":",c->param_port);
232 goto exit_loop;
233 }
234 }
235 c->state=BIO_CONN_S_CONNECT;
236
237#ifdef SO_KEEPALIVE
238 i=1;
239 i=setsockopt(b->num,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
240 if (i < 0)
241 {
242 SYSerr(SYS_F_SOCKET,get_last_socket_error());
243 ERR_add_error_data(4,"host=",c->param_hostname,
244 ":",c->param_port);
245 BIOerr(BIO_F_CONN_STATE,BIO_R_KEEPALIVE);
246 goto exit_loop;
247 }
248#endif
249 break;
250
251 case BIO_CONN_S_CONNECT:
252 BIO_clear_retry_flags(b);
253 ret=connect(b->num,
254 (struct sockaddr *)&c->them,
255 sizeof(c->them));
256 b->retry_reason=0;
257 if (ret < 0)
258 {
259 if (BIO_sock_should_retry(ret))
260 {
261 BIO_set_retry_special(b);
262 c->state=BIO_CONN_S_BLOCKED_CONNECT;
263 b->retry_reason=BIO_RR_CONNECT;
264 }
265 else
266 {
267 SYSerr(SYS_F_CONNECT,get_last_socket_error());
268 ERR_add_error_data(4,"host=",
269 c->param_hostname,
270 ":",c->param_port);
271 BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
272 }
273 goto exit_loop;
274 }
275 else
276 c->state=BIO_CONN_S_OK;
277 break;
278
279 case BIO_CONN_S_BLOCKED_CONNECT:
280 i=BIO_sock_error(b->num);
281 if (i)
282 {
283 BIO_clear_retry_flags(b);
284 SYSerr(SYS_F_CONNECT,i);
285 ERR_add_error_data(4,"host=",
286 c->param_hostname,
287 ":",c->param_port);
288 BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
289 ret=0;
290 goto exit_loop;
291 }
292 else
293 c->state=BIO_CONN_S_OK;
294 break;
295
296 case BIO_CONN_S_OK:
297 ret=1;
298 goto exit_loop;
299 default:
300 abort();
301 goto exit_loop;
302 }
303
304 if (cb != NULL)
305 {
306 if (!(ret=cb((BIO *)b,c->state,ret)))
307 goto end;
308 }
309 }
310
311 /* Loop does not exit */
312exit_loop:
313 if (cb != NULL)
314 ret=cb((BIO *)b,c->state,ret);
315end:
316 return(ret);
317 }
318
319BIO_CONNECT *BIO_CONNECT_new(void)
320 {
321 BIO_CONNECT *ret;
322
323 if ((ret=(BIO_CONNECT *)Malloc(sizeof(BIO_CONNECT))) == NULL)
324 return(NULL);
325 ret->state=BIO_CONN_S_BEFORE;
326 ret->param_hostname=NULL;
327 ret->param_port=NULL;
328 ret->info_callback=NULL;
329 ret->nbio=0;
330 ret->ip[0]=0;
331 ret->ip[1]=0;
332 ret->ip[2]=0;
333 ret->ip[3]=0;
334 ret->port=0;
335 memset((char *)&ret->them,0,sizeof(ret->them));
336 return(ret);
337 }
338
339void BIO_CONNECT_free(BIO_CONNECT *a)
340 {
341 if(a == NULL)
342 return;
343
344 if (a->param_hostname != NULL)
345 Free(a->param_hostname);
346 if (a->param_port != NULL)
347 Free(a->param_port);
348 Free(a);
349 }
350
351BIO_METHOD *BIO_s_connect(void)
352 {
353 return(&methods_connectp);
354 }
355
356static int conn_new(BIO *bi)
357 {
358 bi->init=0;
359 bi->num=INVALID_SOCKET;
360 bi->flags=0;
361 if ((bi->ptr=(char *)BIO_CONNECT_new()) == NULL)
362 return(0);
363 else
364 return(1);
365 }
366
367static void conn_close_socket(BIO *bio)
368 {
369 BIO_CONNECT *c;
370
371 c=(BIO_CONNECT *)bio->ptr;
372 if (bio->num != INVALID_SOCKET)
373 {
374 /* Only do a shutdown if things were established */
375 if (c->state == BIO_CONN_S_OK)
376 shutdown(bio->num,2);
377 closesocket(bio->num);
378 bio->num=INVALID_SOCKET;
379 }
380 }
381
382static int conn_free(BIO *a)
383 {
384 BIO_CONNECT *data;
385
386 if (a == NULL) return(0);
387 data=(BIO_CONNECT *)a->ptr;
388
389 if (a->shutdown)
390 {
391 conn_close_socket(a);
392 BIO_CONNECT_free(data);
393 a->ptr=NULL;
394 a->flags=0;
395 a->init=0;
396 }
397 return(1);
398 }
399
400static int conn_read(BIO *b, char *out, int outl)
401 {
402 int ret=0;
403 BIO_CONNECT *data;
404
405 data=(BIO_CONNECT *)b->ptr;
406 if (data->state != BIO_CONN_S_OK)
407 {
408 ret=conn_state(b,data);
409 if (ret <= 0)
410 return(ret);
411 }
412
413 if (out != NULL)
414 {
415 clear_socket_error();
416 ret=readsocket(b->num,out,outl);
417 BIO_clear_retry_flags(b);
418 if (ret <= 0)
419 {
420 if (BIO_sock_should_retry(ret))
421 BIO_set_retry_read(b);
422 }
423 }
424 return(ret);
425 }
426
427static int conn_write(BIO *b, char *in, int inl)
428 {
429 int ret;
430 BIO_CONNECT *data;
431
432 data=(BIO_CONNECT *)b->ptr;
433 if (data->state != BIO_CONN_S_OK)
434 {
435 ret=conn_state(b,data);
436 if (ret <= 0) return(ret);
437 }
438
439 clear_socket_error();
440 ret=writesocket(b->num,in,inl);
441 BIO_clear_retry_flags(b);
442 if (ret <= 0)
443 {
444 if (BIO_sock_should_retry(ret))
445 BIO_set_retry_write(b);
446 }
447 return(ret);
448 }
449
450static long conn_ctrl(BIO *b, int cmd, long num, char *ptr)
451 {
452 BIO *dbio;
453 int *ip;
454 const char **pptr;
455 long ret=1;
456 BIO_CONNECT *data;
457
458 data=(BIO_CONNECT *)b->ptr;
459
460 switch (cmd)
461 {
462 case BIO_CTRL_RESET:
463 ret=0;
464 data->state=BIO_CONN_S_BEFORE;
465 conn_close_socket(b);
466 b->flags=0;
467 break;
468 case BIO_C_DO_STATE_MACHINE:
469 /* use this one to start the connection */
470 if (!data->state != BIO_CONN_S_OK)
471 ret=(long)conn_state(b,data);
472 else
473 ret=1;
474 break;
475 case BIO_C_GET_CONNECT:
476 if (ptr != NULL)
477 {
478 pptr=(const char **)ptr;
479 if (num == 0)
480 {
481 *pptr=data->param_hostname;
482
483 }
484 else if (num == 1)
485 {
486 *pptr=data->param_port;
487 }
488 else if (num == 2)
489 {
490 *pptr= (char *)&(data->ip[0]);
491 }
492 else if (num == 3)
493 {
494 *((int *)ptr)=data->port;
495 }
496 if ((!b->init) || (ptr == NULL))
497 *pptr="not initalised";
498 ret=1;
499 }
500 break;
501 case BIO_C_SET_CONNECT:
502 if (ptr != NULL)
503 {
504 b->init=1;
505 if (num == 0)
506 {
507 if (data->param_hostname != NULL)
508 Free(data->param_hostname);
509 data->param_hostname=BUF_strdup(ptr);
510 }
511 else if (num == 1)
512 {
513 if (data->param_port != NULL)
514 Free(data->param_port);
515 data->param_port=BUF_strdup(ptr);
516 }
517 else if (num == 2)
518 {
519 char buf[16];
520
521 sprintf(buf,"%d.%d.%d.%d",
522 ptr[0],ptr[1],ptr[2],ptr[3]);
523 if (data->param_hostname != NULL)
524 Free(data->param_hostname);
525 data->param_hostname=BUF_strdup(buf);
526 memcpy(&(data->ip[0]),ptr,4);
527 }
528 else if (num == 3)
529 {
530 char buf[16];
531
532 sprintf(buf,"%d",*(int *)ptr);
533 if (data->param_port != NULL)
534 Free(data->param_port);
535 data->param_port=BUF_strdup(buf);
536 data->port= *(int *)ptr;
537 }
538 }
539 break;
540 case BIO_C_SET_NBIO:
541 data->nbio=(int)num;
542 break;
543 case BIO_C_GET_FD:
544 if (b->init)
545 {
546 ip=(int *)ptr;
547 if (ip != NULL)
548 *ip=b->num;
549 ret=b->num;
550 }
551 else
552 ret= -1;
553 break;
554 case BIO_CTRL_GET_CLOSE:
555 ret=b->shutdown;
556 break;
557 case BIO_CTRL_SET_CLOSE:
558 b->shutdown=(int)num;
559 break;
560 case BIO_CTRL_PENDING:
561 case BIO_CTRL_WPENDING:
562 ret=0;
563 break;
564 case BIO_CTRL_FLUSH:
565 break;
566 case BIO_CTRL_DUP:
567 dbio=(BIO *)ptr;
568 if (data->param_port)
569 BIO_set_conn_port(dbio,data->param_port);
570 if (data->param_hostname)
571 BIO_set_conn_hostname(dbio,data->param_hostname);
572 BIO_set_nbio(dbio,data->nbio);
573 (void)BIO_set_info_callback(dbio,data->info_callback);
574 break;
575 case BIO_CTRL_SET_CALLBACK:
576 data->info_callback=(int (*)())ptr;
577 break;
578 case BIO_CTRL_GET_CALLBACK:
579 {
580 int (**fptr)();
581
582 fptr=(int (**)())ptr;
583 *fptr=data->info_callback;
584 }
585 break;
586 default:
587 ret=0;
588 break;
589 }
590 return(ret);
591 }
592
593static int conn_puts(BIO *bp, char *str)
594 {
595 int n,ret;
596
597 n=strlen(str);
598 ret=conn_write(bp,str,n);
599 return(ret);
600 }
601
602BIO *BIO_new_connect(char *str)
603 {
604 BIO *ret;
605
606 ret=BIO_new(BIO_s_connect());
607 if (ret == NULL) return(NULL);
608 if (BIO_set_conn_hostname(ret,str))
609 return(ret);
610 else
611 {
612 BIO_free(ret);
613 return(NULL);
614 }
615 }
616
617#endif
618
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