1 /* crypto/bio/bss_acpt.c */
2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
67 /* BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */
70 #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
72 #define SOCKET_PROTOCOL IPPROTO_TCP
75 typedef struct bio_accept_st
89 static int acpt_write(BIO *h,char *buf,int num);
90 static int acpt_read(BIO *h,char *buf,int size);
91 static int acpt_puts(BIO *h,char *str);
92 static long acpt_ctrl(BIO *h,int cmd,long arg1,char *arg2);
93 static int acpt_new(BIO *h);
94 static int acpt_free(BIO *data);
96 static int acpt_write();
97 static int acpt_read();
98 static int acpt_puts();
99 static long acpt_ctrl();
100 static int acpt_new();
101 static int acpt_free();
105 static int acpt_state(BIO *b, BIO_ACCEPT *c);
106 static void acpt_close_socket(BIO *data);
107 BIO_ACCEPT *BIO_ACCEPT_new(void );
108 void BIO_ACCEPT_free(BIO_ACCEPT *a);
112 static int acpt_state();
113 static void acpt_close_socket();
114 BIO_ACCEPT *BIO_ACCEPT_new();
115 void BIO_ACCEPT_free();
118 #define ACPT_S_BEFORE 1
119 #define ACPT_S_GET_ACCEPT_SOCKET 2
122 static BIO_METHOD methods_acceptp=
124 BIO_TYPE_ACCEPT,"socket accept",
128 NULL, /* connect_gets, */
134 BIO_METHOD *BIO_s_accept()
136 return(&methods_acceptp);
139 static int acpt_new(bi)
145 bi->num=INVALID_SOCKET;
147 if ((ba=BIO_ACCEPT_new()) == NULL)
150 ba->state=ACPT_S_BEFORE;
155 BIO_ACCEPT *BIO_ACCEPT_new()
159 if ((ret=(BIO_ACCEPT *)Malloc(sizeof(BIO_ACCEPT))) == NULL)
162 memset(ret,0,sizeof(BIO_ACCEPT));
163 ret->accept_sock=INVALID_SOCKET;
167 void BIO_ACCEPT_free(a)
170 if (a->param_addr != NULL) Free(a->param_addr);
171 if (a->addr != NULL) Free(a->addr);
172 if (a->bio_chain != NULL) BIO_free(a->bio_chain);
176 static void acpt_close_socket(bio)
181 c=(BIO_ACCEPT *)bio->ptr;
182 if (c->accept_sock != INVALID_SOCKET)
184 shutdown(c->accept_sock,2);
186 closesocket(c->accept_sock);
188 close(c->accept_sock);
190 c->accept_sock=INVALID_SOCKET;
191 bio->num=INVALID_SOCKET;
195 static int acpt_free(a)
200 if (a == NULL) return(0);
201 data=(BIO_ACCEPT *)a->ptr;
205 acpt_close_socket(a);
206 BIO_ACCEPT_free(data);
214 static int acpt_state(b,c)
227 if (c->param_addr == NULL)
229 BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED);
232 s=BIO_get_accept_socket(c->param_addr);
233 if (s == INVALID_SOCKET)
239 i=BIO_socket_ioctl(b->num,FIONBIO,&l);
247 BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
254 c->state=ACPT_S_GET_ACCEPT_SOCKET;
257 case ACPT_S_GET_ACCEPT_SOCKET:
258 if (b->next_bio != NULL)
263 i=BIO_accept(c->accept_sock,&(c->addr));
264 if (i < 0) return(i);
265 bio=BIO_new_socket(i,BIO_CLOSE);
266 if (bio == NULL) goto err;
268 BIO_set_callback(bio,BIO_get_callback(b));
269 BIO_set_callback_arg(bio,BIO_get_callback_arg(b));
274 i=BIO_socket_ioctl(i,FIONBIO,&l);
277 BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
283 /* If the accept BIO has an bio_chain, we dup it and
284 * put the new socket at the end. */
285 if (c->bio_chain != NULL)
287 if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL)
289 if (!BIO_push(dbio,bio)) goto err;
292 if (BIO_push(b,bio) == NULL) goto err;
310 if (b->next_bio == NULL)
312 c->state=ACPT_S_GET_ACCEPT_SOCKET;
324 static int acpt_read(b,out,outl)
332 BIO_clear_retry_flags(b);
333 data=(BIO_ACCEPT *)b->ptr;
335 while (b->next_bio == NULL)
337 ret=acpt_state(b,data);
338 if (ret <= 0) return(ret);
341 ret=BIO_read(b->next_bio,out,outl);
342 BIO_copy_next_retry(b);
346 static int acpt_write(b,in,inl)
354 BIO_clear_retry_flags(b);
355 data=(BIO_ACCEPT *)b->ptr;
357 while (b->next_bio == NULL)
359 ret=acpt_state(b,data);
360 if (ret <= 0) return(ret);
363 ret=BIO_write(b->next_bio,in,inl);
364 BIO_copy_next_retry(b);
368 static long acpt_ctrl(b,cmd,num,ptr)
379 data=(BIO_ACCEPT *)b->ptr;
385 data->state=ACPT_S_BEFORE;
386 acpt_close_socket(b);
389 case BIO_C_DO_STATE_MACHINE:
390 /* use this one to start the connection */
391 ret=(long)acpt_state(b,data);
393 case BIO_C_SET_ACCEPT:
399 if (data->param_addr != NULL)
400 Free(data->param_addr);
401 data->param_addr=BUF_strdup(ptr);
405 data->accept_nbio=(ptr != NULL);
409 if (data->bio_chain != NULL)
410 BIO_free(data->bio_chain);
411 data->bio_chain=(BIO *)ptr;
423 *ip=data->accept_sock;
429 case BIO_CTRL_GET_CLOSE:
432 case BIO_CTRL_SET_CLOSE:
433 b->shutdown=(int)num;
435 case BIO_CTRL_PENDING:
436 case BIO_CTRL_WPENDING:
443 /* if (data->param_port) EAY EAY
444 BIO_set_port(dbio,data->param_port);
445 if (data->param_hostname)
446 BIO_set_hostname(dbio,data->param_hostname);
447 BIO_set_nbio(dbio,data->nbio); */
457 static int acpt_puts(bp,str)
464 ret=acpt_write(bp,str,n);
468 BIO *BIO_new_accept(str)
473 ret=BIO_new(BIO_s_accept());
474 if (ret == NULL) return(NULL);
475 if (BIO_set_accept_port(ret,str))