313 lines
6.8 KiB
C
313 lines
6.8 KiB
C
/*-
|
|
* Copyright (c) 1980, 1992, 1993
|
|
* 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
|
|
/*
|
|
static char sccsid[] = "@(#)netcmds.c 8.1 (Berkeley) 6/6/93";
|
|
*/
|
|
static const char rcsid[] =
|
|
"$Id$";
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* Common network command support routines.
|
|
*/
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/protosw.h>
|
|
|
|
#include <net/route.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/in_pcb.h>
|
|
|
|
#include <netdb.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include "systat.h"
|
|
#include "extern.h"
|
|
|
|
#define streq(a,b) (strcmp(a,b)==0)
|
|
|
|
static struct hitem {
|
|
struct in_addr addr;
|
|
int onoff;
|
|
} *hosts;
|
|
|
|
int nports, nhosts, protos;
|
|
|
|
static void changeitems __P((char *, int));
|
|
static int selectproto __P((char *));
|
|
static void showprotos __P((void));
|
|
static int selectport __P((long, int));
|
|
static void showports __P((void));
|
|
static int selecthost __P((struct in_addr *, int));
|
|
static void showhosts __P((void));
|
|
|
|
int
|
|
netcmd(cmd, args)
|
|
char *cmd, *args;
|
|
{
|
|
|
|
if (prefix(cmd, "tcp") || prefix(cmd, "udp")) {
|
|
selectproto(cmd);
|
|
return (1);
|
|
}
|
|
if (prefix(cmd, "ignore") || prefix(cmd, "display")) {
|
|
changeitems(args, prefix(cmd, "display"));
|
|
return (1);
|
|
}
|
|
if (prefix(cmd, "reset")) {
|
|
selectproto(0);
|
|
selecthost(0, 0);
|
|
selectport(-1, 0);
|
|
return (1);
|
|
}
|
|
if (prefix(cmd, "show")) {
|
|
move(CMDLINE, 0); clrtoeol();
|
|
if (*args == '\0') {
|
|
showprotos();
|
|
showhosts();
|
|
showports();
|
|
return (1);
|
|
}
|
|
if (prefix(args, "protos"))
|
|
showprotos();
|
|
else if (prefix(args, "hosts"))
|
|
showhosts();
|
|
else if (prefix(args, "ports"))
|
|
showports();
|
|
else
|
|
addstr("show what?");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
static void
|
|
changeitems(args, onoff)
|
|
char *args;
|
|
int onoff;
|
|
{
|
|
register char *cp;
|
|
struct servent *sp;
|
|
struct hostent *hp;
|
|
struct in_addr in;
|
|
char *index();
|
|
|
|
cp = index(args, '\n');
|
|
if (cp)
|
|
*cp = '\0';
|
|
for (;;args = cp) {
|
|
for (cp = args; *cp && isspace(*cp); cp++)
|
|
;
|
|
args = cp;
|
|
for (; *cp && !isspace(*cp); cp++)
|
|
;
|
|
if (*cp)
|
|
*cp++ = '\0';
|
|
if (cp - args == 0)
|
|
break;
|
|
sp = getservbyname(args,
|
|
protos == TCP ? "tcp" : protos == UDP ? "udp" : 0);
|
|
if (sp) {
|
|
selectport(sp->s_port, onoff);
|
|
continue;
|
|
}
|
|
hp = gethostbyname(args);
|
|
if (hp == 0) {
|
|
in.s_addr = inet_addr(args);
|
|
if (in.s_addr == -1) {
|
|
error("%s: unknown host or port", args);
|
|
continue;
|
|
}
|
|
} else
|
|
in = *(struct in_addr *)hp->h_addr;
|
|
selecthost(&in, onoff);
|
|
}
|
|
}
|
|
|
|
static int
|
|
selectproto(proto)
|
|
char *proto;
|
|
{
|
|
int new = protos;
|
|
|
|
if (proto == 0 || streq(proto, "all"))
|
|
new = TCP|UDP;
|
|
else if (streq(proto, "tcp"))
|
|
new = TCP;
|
|
else if (streq(proto, "udp"))
|
|
new = UDP;
|
|
return (new != protos, protos = new);
|
|
}
|
|
|
|
static void
|
|
showprotos()
|
|
{
|
|
|
|
if ((protos&TCP) == 0)
|
|
addch('!');
|
|
addstr("tcp ");
|
|
if ((protos&UDP) == 0)
|
|
addch('!');
|
|
addstr("udp ");
|
|
}
|
|
|
|
static struct pitem {
|
|
long port;
|
|
int onoff;
|
|
} *ports;
|
|
|
|
static int
|
|
selectport(port, onoff)
|
|
long port;
|
|
int onoff;
|
|
{
|
|
register struct pitem *p;
|
|
|
|
if (port == -1) {
|
|
if (ports == 0)
|
|
return (0);
|
|
free((char *)ports), ports = 0;
|
|
nports = 0;
|
|
return (1);
|
|
}
|
|
for (p = ports; p < ports+nports; p++)
|
|
if (p->port == port) {
|
|
p->onoff = onoff;
|
|
return (0);
|
|
}
|
|
if (nports == 0)
|
|
ports = (struct pitem *)malloc(sizeof (*p));
|
|
else
|
|
ports = (struct pitem *)realloc(ports, (nports+1)*sizeof (*p));
|
|
p = &ports[nports++];
|
|
p->port = port;
|
|
p->onoff = onoff;
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
checkport(inp)
|
|
register struct inpcb *inp;
|
|
{
|
|
register struct pitem *p;
|
|
|
|
if (ports)
|
|
for (p = ports; p < ports+nports; p++)
|
|
if (p->port == inp->inp_lport || p->port == inp->inp_fport)
|
|
return (p->onoff);
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
showports()
|
|
{
|
|
register struct pitem *p;
|
|
struct servent *sp;
|
|
|
|
for (p = ports; p < ports+nports; p++) {
|
|
sp = getservbyport(p->port,
|
|
protos == TCP|UDP ? 0 : protos == TCP ? "tcp" : "udp");
|
|
if (!p->onoff)
|
|
addch('!');
|
|
if (sp)
|
|
printw("%s ", sp->s_name);
|
|
else
|
|
printw("%d ", p->port);
|
|
}
|
|
}
|
|
|
|
static int
|
|
selecthost(in, onoff)
|
|
struct in_addr *in;
|
|
int onoff;
|
|
{
|
|
register struct hitem *p;
|
|
|
|
if (in == 0) {
|
|
if (hosts == 0)
|
|
return (0);
|
|
free((char *)hosts), hosts = 0;
|
|
nhosts = 0;
|
|
return (1);
|
|
}
|
|
for (p = hosts; p < hosts+nhosts; p++)
|
|
if (p->addr.s_addr == in->s_addr) {
|
|
p->onoff = onoff;
|
|
return (0);
|
|
}
|
|
if (nhosts == 0)
|
|
hosts = (struct hitem *)malloc(sizeof (*p));
|
|
else
|
|
hosts = (struct hitem *)realloc(hosts, (nhosts+1)*sizeof (*p));
|
|
p = &hosts[nhosts++];
|
|
p->addr = *in;
|
|
p->onoff = onoff;
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
checkhost(inp)
|
|
register struct inpcb *inp;
|
|
{
|
|
register struct hitem *p;
|
|
|
|
if (hosts)
|
|
for (p = hosts; p < hosts+nhosts; p++)
|
|
if (p->addr.s_addr == inp->inp_laddr.s_addr ||
|
|
p->addr.s_addr == inp->inp_faddr.s_addr)
|
|
return (p->onoff);
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
showhosts()
|
|
{
|
|
register struct hitem *p;
|
|
struct hostent *hp;
|
|
|
|
for (p = hosts; p < hosts+nhosts; p++) {
|
|
hp = gethostbyaddr((char *)&p->addr, sizeof (p->addr), AF_INET);
|
|
if (!p->onoff)
|
|
addch('!');
|
|
printw("%s ", hp ? hp->h_name : (char *)inet_ntoa(p->addr));
|
|
}
|
|
}
|