4.4BSD/usr/src/sys/tests/netccitt/xi_sink.c
/*-
* Copyright (c) 1988, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1988, 1991 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)xi_sink.c 7.6 (Berkeley) 7/15/91";
#endif /* not lint */
/*
* This is a test program to be a sink for X.25 connections.
*/
#include <sys/param.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/route.h>
#include <net/if.h>
#include <netccitt/x25.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <netdb.h>
#define dbprintf if(verbose)printf
#ifdef __STDC__
#define try(a,b,c) {x = (a b); dbprintf("%s%s returns %d\n",c,#a,x);\
if(x<0) {perror(#a); myexit(0);}}
#else
#define try(a,b,c) {x = (a b); dbprintf("%s%s returns %d\n",c,"a",x);\
if(x<0) {perror("a"); myexit(0);}}
#endif
struct ifreq ifr;
short port = 3000;
struct sockaddr_x25 faddr, laddr = { sizeof(laddr), AF_CCITT };
struct sockaddr_x25 *sx25 = &laddr;
char **xenvp;
long size, count = 10, forkp, echop = 0, mynamep, verbose = 1, playtag = 0;
long records, intercept = 0, confp;
void savedata();
char buf[2048];
char your_it[] = "You're it!";
char *Servername;
main(argc, argv, envp)
int argc;
char *argv[];
char *envp[];
{
register char **av = argv;
register char *cp;
xenvp = envp;
while(--argc > 0) {
av++;
if (strcmp(*av,"host")==0) {
av++;
ccitt_addr(*av, sx25);
argc--;
} else if (strcmp(*av,"count")==0) {
av++;
sscanf(*av,"%ld",&count);
argc--;
} else if (strcmp(*av,"size")==0) {
av++;
sscanf(*av,"%ld",&size);
argc--;
} else if (strcmp(*av, "intercept")==0) {
intercept++;
}
}
xisink();
}
#define BIG 2048
#define MIDLIN 512
char readbuf[BIG];
char name[MIDLIN];
struct iovec iov[1];
union {
struct {
struct cmsghdr cmhdr;
char cmdata[128 - sizeof(struct cmsghdr)];
} cm;
char data[128];
} cbuf;
#define control cbuf.data
struct msghdr msghdr = {
0, 0,
iov, sizeof(iov)/sizeof(iov[1]),
0, 0, 0
};
xisink()
{
int x, s, pid, on = 1, loop = 0, n;
extern int errno;
try(socket, (AF_CCITT, SOCK_STREAM, 0),"");
s = x;
sx25->x25_opts.op_flags |= X25_MQBIT;
try(bind, (s, (struct sockaddr *) sx25, sx25->x25_len), "");
/*try(setsockopt, (s, SOL_SOCKET, SO_DEBUG, &on, sizeof (on)), ""); */
try(listen, (s, 5), "");
for(;;) {
int child, ns;
int addrlen = sizeof(faddr);
char childname[50];
try (accept, (s, (struct sockaddr *)&faddr, &addrlen), "");
ns = x;
dumpit("connection from:", &faddr, sizeof faddr);
if (mynamep || intercept) {
addrlen = sizeof(faddr);
try (getsockname, (ns, (struct sockaddr *)&faddr,
&addrlen), "");
dumpit("connected as:", &faddr, addrlen);
}
loop++;
if (loop > 3) myexit(0);
if (forkp) {
try(fork, (), "");
} else
x = 0;
if (x == 0) {
long n, count = 0, cn, flags;
records = 0;
for (;;) {
msghdr.msg_controllen = sizeof(control);
msghdr.msg_control = control;
iov->iov_len = sizeof(readbuf);
iov->iov_base = readbuf;
n = recvmsg(ns, &msghdr, 0);
flags = msghdr.msg_flags;
count++;
dbprintf("recvmsg from child %d got %d ctl %d flags %x\n",
getpid(), n, (cn = msghdr.msg_controllen),
flags);
fflush(stdout);
if (cn && verbose)
dumpit("control data:\n", control, cn);
if (n < 0) {
fprintf(stderr, "errno is %d\n", errno);
perror("recvmsg");
/*sleep (10);*/
break;
} else {
if (verbose)
dumpit("data:\n", readbuf, n);
}
if (echop)
savedata(n);
if (flags & MSG_EOR)
records++;
if (echop && (readbuf[0] & 0x80)) {
dbprintf("Answering back!!!!\n");
answerback(ns);
}
errno = 0;
}
}
myexit(0);
}
}
struct savebuf {
struct savebuf *s_next;
struct savebuf *s_prev;
int s_n;
int s_flags;
} savebuf = {&savebuf, &savebuf};
void
savedata(n)
int n;
{
register struct savebuf *s = (struct savebuf *)malloc(n + sizeof *s);
if (s == 0)
return;
insque(s, savebuf.s_prev);
s->s_n = n;
s->s_flags = msghdr.msg_flags;
bcopy(readbuf, (char *)(s + 1), n);
}
answerback(ns)
{
int n;
register struct savebuf *s = savebuf.s_next, *t;
msghdr.msg_controllen = 0;
msghdr.msg_control = 0;
while (s != &savebuf) {
iov->iov_len = s->s_n;
iov->iov_base = (char *)(s + 1);
n = sendmsg(ns, &msghdr, s->s_flags);
dbprintf("echoed %d\n", n);
t = s; s = s->s_next; remque(t); free((char *)t);
}
}
dumpit(what, where, n)
char *what; unsigned short *where; int n;
{
unsigned short *s = where;
unsigned short *z = where + (n+1)/2;
int count = 0;
printf(what);
while(s < z) {
count++;
printf("%x ",*s++);
if ((count & 15) == 0)
putchar('\n');
}
if (count & 15)
putchar('\n');
fflush(stdout);
}
myexit(n)
{
fflush(stderr);
printf("got %d records\n", records);
fflush(stdout);
exit(n);
}