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.]
73 static struct hostent *GetHostByName(char *name);
76 static struct hostent *GetHostByName();
81 #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
83 #define SOCKET_PROTOCOL IPPROTO_TCP
87 static struct WSAData wsa_state;
88 static int wsa_init_done=0;
92 static FARPROC lpTopWndProc=NULL;
93 static FARPROC lpTopHookProc=NULL;
94 extern HINSTANCE _hInstance; /* nice global CRT provides */
96 static LONG FAR PASCAL topHookProc(hwnd,message,wParam,lParam)
108 SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopWndProc);
113 return CallWindowProc(lpTopWndProc,hwnd,message,wParam,lParam);
116 static BOOL CALLBACK enumproc(HWND hwnd,LPARAM lParam)
131 WSACancelBlockingCall();
145 signal(SIGINT,(void (*)(int))sock_cleanup);
148 memset(&wsa_state,0,sizeof(wsa_state));
149 if (WSAStartup(0x0101,&wsa_state)!=0)
151 err=WSAGetLastError();
152 BIO_printf(bio_err,"unable to start WINSOCK, error code=%d\n",err);
157 EnumTaskWindows(GetCurrentTask(),enumproc,0L);
158 lpTopWndProc=(FARPROC)GetWindowLong(topWnd,GWL_WNDPROC);
159 lpTopHookProc=MakeProcInstance((FARPROC)topHookProc,_hInstance);
161 SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopHookProc);
168 int init_client(sock, host, port)
176 if (!host_ip(host,&(ip[0])))
181 return(init_client_ip(sock,ip,port));
184 int init_client_ip(sock, ip, port)
190 struct sockaddr_in them;
193 if (!sock_init()) return(0);
195 memset((char *)&them,0,sizeof(them));
196 them.sin_family=AF_INET;
197 them.sin_port=htons((unsigned short)port);
199 ((unsigned long)ip[0]<<24L)|
200 ((unsigned long)ip[1]<<16L)|
201 ((unsigned long)ip[2]<< 8L)|
202 ((unsigned long)ip[3]);
203 them.sin_addr.s_addr=htonl(addr);
205 s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
206 if (s == INVALID_SOCKET) { perror("socket"); return(0); }
209 i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
210 if (i < 0) { perror("keepalive"); return(0); }
212 if (connect(s,(struct sockaddr *)&them,sizeof(them)) == -1)
213 { close(s); perror("connect"); return(0); }
218 int nbio_sock_error(sock)
224 i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(char *)&j,&size);
231 int nbio_init_client_ip(sock, ip, port)
237 struct sockaddr_in them;
240 if (!sock_init()) return(0);
242 memset((char *)&them,0,sizeof(them));
243 them.sin_family=AF_INET;
244 them.sin_port=htons((unsigned short)port);
245 addr= (unsigned long)
246 ((unsigned long)ip[0]<<24L)|
247 ((unsigned long)ip[1]<<16L)|
248 ((unsigned long)ip[2]<< 8L)|
249 ((unsigned long)ip[3]);
250 them.sin_addr.s_addr=htonl(addr);
256 s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
257 if (s == INVALID_SOCKET) { perror("socket"); return(0); }
260 i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
261 if (i < 0) { perror("keepalive"); return(0); }
265 socket_ioctl(s,FIONBIO,&l);
271 i=connect(s,(struct sockaddr *)&them,sizeof(them));
272 if (i == INVALID_SOCKET)
274 if (BIO_sock_should_retry(i))
283 int do_server(port, ret, cb)
293 if (!init_server(&accept_socket,port)) return(0);
302 if (do_accept(accept_socket,&sock,&name) == 0)
304 SHUTDOWN(accept_socket);
308 if (name != NULL) Free(name);
312 SHUTDOWN(accept_socket);
318 int init_server(sock, port)
323 struct sockaddr_in server;
326 if (!sock_init()) return(0);
328 memset((char *)&server,0,sizeof(server));
329 server.sin_family=AF_INET;
330 server.sin_port=htons((unsigned short)port);
331 server.sin_addr.s_addr=INADDR_ANY;
332 s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
334 if (s == INVALID_SOCKET) goto err;
335 if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
342 if (listen(s,5) == -1) goto err;
347 if ((ret == 0) && (s != -1))
354 int do_accept(acc_sock, sock, host)
360 struct hostent *h1,*h2;
361 static struct sockaddr_in from;
363 /* struct linger ling; */
365 if (!sock_init()) return(0);
371 memset((char *)&from,0,sizeof(from));
373 ret=accept(acc_sock,(struct sockaddr *)&from,&len);
374 if (ret == INVALID_SOCKET)
378 BIO_printf(bio_err,"accept error %d\n",i);
382 /*check_timeout(); */
385 fprintf(stderr,"errno=%d ",errno);
394 i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling));
395 if (i < 0) { perror("linger"); return(0); }
397 i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
398 if (i < 0) { perror("keepalive"); return(0); }
401 if (host == NULL) goto end;
402 /* I should use WSAAsyncGetHostByName() under windows */
403 h1=gethostbyaddr((char *)&from.sin_addr.s_addr,
404 sizeof(from.sin_addr.s_addr),AF_INET);
407 BIO_printf(bio_err,"bad gethostbyaddr\n");
413 if ((*host=(char *)Malloc(strlen(h1->h_name)+1)) == NULL)
418 strcpy(*host,h1->h_name);
420 h2=GetHostByName(*host);
423 BIO_printf(bio_err,"gethostbyname failure\n");
427 if (h2->h_addrtype != AF_INET)
429 BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
438 int socket_ioctl(fd,type,arg)
445 i=ioctlsocket(fd,type,arg);
447 i=ioctl(fd,type,arg);
452 err=WSAGetLastError();
456 BIO_printf(bio_err,"ioctl on socket failed:error %d\n",err);
464 return(WSAGetLastError());
470 int extract_host_port(str,host_ptr,ip,port_ptr)
482 BIO_printf(bio_err,"no port defined\n");
487 if ((ip != NULL) && !host_ip(str,ip))
489 if (host_ptr != NULL) *host_ptr=h;
491 if (!extract_port(p,port_ptr))
505 if (sscanf(str,"%d.%d.%d.%d",&(in[0]),&(in[1]),&(in[2]),&(in[3])) == 4)
510 BIO_printf(bio_err,"invalid IP address\n");
519 { /* do a gethostbyname */
522 if (!sock_init()) return(0);
524 he=GetHostByName(str);
527 BIO_printf(bio_err,"gethostbyname failure\n");
530 /* cast to short because of win16 winsock definition */
531 if ((short)he->h_addrtype != AF_INET)
533 BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
536 ip[0]=he->h_addr_list[0][0];
537 ip[1]=he->h_addr_list[0][1];
538 ip[2]=he->h_addr_list[0][2];
539 ip[3]=he->h_addr_list[0][3];
546 int extract_port(str,port_ptr)
555 *port_ptr=(unsigned short)i;
558 s=getservbyname(str,"tcp");
561 BIO_printf(bio_err,"getservbyname failure for %s\n",str);
564 *port_ptr=ntohs((unsigned short)s->s_port);
570 static struct ghbn_cache_st
575 } ghbn_cache[GHBN_NUM];
577 static unsigned long ghbn_hits=0L;
578 static unsigned long ghbn_miss=0L;
580 static struct hostent *GetHostByName(name)
585 unsigned long low= (unsigned long)-1;
587 for (i=0; i<GHBN_NUM; i++)
589 if (low > ghbn_cache[i].order)
591 low=ghbn_cache[i].order;
594 if (ghbn_cache[i].order > 0)
596 if (strncmp(name,ghbn_cache[i].name,128) == 0)
600 if (i == GHBN_NUM) /* no hit*/
603 ret=gethostbyname(name);
604 if (ret == NULL) return(NULL);
605 /* else add to cache */
606 strncpy(ghbn_cache[lowi].name,name,128);
607 memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent));
608 ghbn_cache[lowi].order=ghbn_miss+ghbn_hits;
614 ret= &(ghbn_cache[i].ent);
615 ghbn_cache[i].order=ghbn_miss+ghbn_hits;
621 int spawn(argc, argv, in, out)
628 #define CHILD_READ p1[0]
629 #define CHILD_WRITE p2[1]
630 #define PARENT_READ p2[0]
631 #define PARENT_WRITE p1[1]
634 if ((pipe(p1) < 0) || (pipe(p2) < 0)) return(-1);
636 if ((pid=fork()) == 0)
638 if (dup2(CHILD_WRITE,fileno(stdout)) < 0)
640 if (dup2(CHILD_WRITE,fileno(stderr)) < 0)
642 if (dup2(CHILD_READ,fileno(stdin)) < 0)
649 execvp(argv[0],argv);
665 /* Turn on synchronous sockets so that we can do a WaitForMultipleObjects
669 int optionValue = SO_SYNCHRONOUS_NONALERT;
676 (char *)&optionValue,
677 sizeof(optionValue));
678 if (err != NO_ERROR) {
679 /* failed for some reason... */
680 BIO_printf(bio_err, "failed to setsockopt(SO_OPENTYPE, SO_SYNCHRONOUS_ALERT) - %d\n",