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Arquivotheca.SunOS-4.1.4/ucb/netstat/if.c
seta75D ff309bfe1c Init
2021-10-11 18:37:13 -03:00

346 lines
8.4 KiB
C
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/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
static char sccsid[] = "@(#)if.c 1.1 94/10/31 SMI"; /* from UCB 5.3 4/23/86 */
#endif
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#ifdef ENABLE_XNS
#include <netns/ns.h>
#endif ENABLE_XNS
#include <stdio.h>
extern int aflag;
extern int tflag;
extern int nflag;
extern char *interface;
extern int unit;
extern int kread();
extern char *routename(), *netname();
/*
* Print a description of the network interfaces.
*/
intpr(interval, ifnetaddr)
int interval;
off_t ifnetaddr;
{
struct ifnet ifnet;
union {
struct ifaddr ifa;
struct in_ifaddr in;
} ifaddr;
off_t ifaddraddr;
char name[16];
if (ifnetaddr == 0) {
printf("ifnet: symbol not defined\n");
return;
}
if (interval) {
sidewaysintpr(interval, ifnetaddr);
return;
}
kread(ifnetaddr, &ifnetaddr, sizeof ifnetaddr);
printf("%-5.5s %-5.5s%-13.13s %-14.14s %-6.6s %-5.5s %-6.6s %-5.5s",
"Name", "Mtu", "Net/Dest", "Address", "Ipkts", "Ierrs",
"Opkts", "Oerrs");
printf(" %-6.6s", "Collis");
if (tflag)
printf(" %-6.6s", "Timer");
else
printf(" %-6.6s", "Queue");
putchar('\n');
ifaddraddr = 0;
while (ifnetaddr || ifaddraddr) {
struct sockaddr_in *sin;
register char *cp;
int n, pad;
char *index();
struct in_addr in, inet_makeaddr();
char buf[80];
if (ifaddraddr == 0) {
/*
* No address list for the current interface:
* find the first address.
*/
if (kread(ifnetaddr, &ifnet, sizeof ifnet) < 0)
break;
if (kread((off_t)ifnet.if_name, name, 16) < 0)
break;
name[15] = '\0';
ifnetaddr = (off_t) ifnet.if_next;
/*
* If a particular interface has been singled
* out, skip over all others.
*/
if (interface) {
if (strcmp(name, interface) != 0 ||
unit != ifnet.if_unit)
continue;
}
/*
* Extend device name with unit number.
*/
cp = index(name, '\0');
*cp++ = ifnet.if_unit + '0';
if ((ifnet.if_flags&IFF_UP) == 0) {
/*
* The interface is down: don't report on it
* unless it's been singled out or we're
* reporting everything.
*/
if (!interface && !aflag)
continue;
*cp++ = '*';
}
*cp = '\0';
ifaddraddr = (off_t)ifnet.if_addrlist;
}
if (ifaddraddr == 0) {
/*
* There's no address associated with the current
* interface.
*/
if (!aflag)
continue;
printf("%-5s %-5d", name, ifnet.if_mtu);
printf("%-13.13s ", "none");
printf("%-14.14s ", "none");
} else {
printf("%-5s %-5d", name, ifnet.if_mtu);
kread(ifaddraddr, &ifaddr, sizeof ifaddr);
ifaddraddr = (off_t)ifaddr.ifa.ifa_next;
switch (ifaddr.ifa.ifa_addr.sa_family) {
case AF_UNSPEC:
printf("%-13.13s ", "none");
printf("%-14.14s ", "none");
break;
case AF_INET:
if (ifnet.if_flags & IFF_POINTOPOINT) {
sin = (struct sockaddr_in *)
&ifaddr.in.ia_dstaddr;
printf("%-13s ",
routename(sin->sin_addr));
} else {
printf("%-13s ",
netname(htonl(ifaddr.in.ia_subnet),
ifaddr.in.ia_subnetmask));
}
sin = (struct sockaddr_in *)&ifaddr.in.ia_addr;
printf("%-14s ", routename(sin->sin_addr));
break;
#ifdef ENABLE_XNS
case AF_NS: {
struct sockaddr_ns *sns =
(struct sockaddr_ns *)&ifaddr.in.ia_addr;
long net;
char host[8];
*(union ns_net *) &net = sns->sns_addr.x_net;
sprintf(host, "%lxH", ntohl(net));
upHex(host);
printf("ns:%-8s ", host);
printf("%-12s ",ns_phost(sns));
break;
}
#endif ENABLE_XNS
default:
pad = 29; /* chars in this field */
/*
* We use this roundabout sprintf into a
* buffer technique here so that we
* can count the number of characters we
* print. System V printf doesn't return
* the number of bytes written.
*/
sprintf(buf, "af%2d: ",
ifaddr.ifa.ifa_addr.sa_family);
pad -= strlen(buf);
printf("%s", buf);
/*
* Shave off trailing zero bytes in the
* address for printing, but always print
* at least one byte.
*/
for (cp = (char *)&ifaddr.ifa.ifa_addr +
sizeof(struct sockaddr) - 1;
cp > ifaddr.ifa.ifa_addr.sa_data; --cp)
if (*cp != 0)
break;
n = cp - (char *)ifaddr.ifa.ifa_addr.sa_data
+ 1;
cp = (char *)ifaddr.ifa.ifa_addr.sa_data;
if (n <= 6)
while (--n) {
sprintf(buf, "%02d.",
*cp++ & 0xff);
pad -= strlen(buf);
printf("%s", buf);
}
else
while (--n) {
sprintf(buf, "%02d",
*cp++ & 0xff);
pad -= strlen(buf);
printf("%s", buf);
}
sprintf(buf, "%02d ", *cp & 0xff);
pad -= strlen(buf);
printf("%s", buf);
if (pad > 0)
while (pad--)
printf(" ");
break;
}
}
printf("%-7d %-4d %-7d %-4d %-6d",
ifnet.if_ipackets, ifnet.if_ierrors,
ifnet.if_opackets, ifnet.if_oerrors,
ifnet.if_collisions);
if (tflag)
printf(" %-6d", ifnet.if_timer);
else
printf(" %-6d", ifnet.if_snd.ifq_len);
putchar('\n');
}
}
#define MAXIF 20
struct iftot {
char ift_name[16]; /* interface name */
int ift_ip; /* input packets */
int ift_ie; /* input errors */
int ift_op; /* output packets */
int ift_oe; /* output errors */
int ift_co; /* collisions */
} iftot[MAXIF];
/*
* Print a running summary of interface statistics.
* Repeat display every interval seconds, showing
* statistics collected over that interval. First
* line printed at top of screen is always cumulative.
*/
sidewaysintpr(interval, off)
int interval;
off_t off;
{
struct ifnet ifnet;
off_t firstifnet;
static char sobuf[BUFSIZ];
register struct iftot *ip, *total;
register int line;
struct iftot *lastif, *sum, *interesting;
int maxtraffic, traffic;
setbuf(stdout, sobuf);
kread(off, &firstifnet, sizeof (off_t));
lastif = iftot;
sum = iftot + MAXIF - 1;
total = sum - 1;
maxtraffic = 0, interesting = iftot;
for (off = firstifnet, ip = iftot; off;) {
char *cp;
kread(off, &ifnet, sizeof ifnet);
traffic = ifnet.if_ipackets + ifnet.if_opackets;
if (traffic > maxtraffic)
maxtraffic = traffic, interesting = ip;
ip->ift_name[0] = '(';
kread((int)ifnet.if_name, ip->ift_name + 1, 15);
if (interface && strcmp(ip->ift_name + 1, interface) == 0 &&
unit == ifnet.if_unit) {
interesting = ip;
maxtraffic = 0x7FFFFFFF;
}
ip->ift_name[15] = '\0';
cp = index(ip->ift_name, '\0');
sprintf(cp, "%d)", ifnet.if_unit);
ip++;
if (ip >= iftot + MAXIF - 2)
break;
off = (off_t) ifnet.if_next;
}
lastif = ip;
banner:
printf(" input %-6.6s output ", interesting->ift_name);
if (lastif - iftot > 0)
printf(" input (Total) output ");
for (ip = iftot; ip < iftot + MAXIF; ip++) {
ip->ift_ip = 0;
ip->ift_ie = 0;
ip->ift_op = 0;
ip->ift_oe = 0;
ip->ift_co = 0;
}
putchar('\n');
printf("%-7.7s %-5.5s %-7.7s %-5.5s %-6.6s ",
"packets", "errs", "packets", "errs", "colls");
if (lastif - iftot > 0)
printf("%-7.7s %-5.5s %-7.7s %-5.5s %-6.6s ",
"packets", "errs", "packets", "errs", "colls");
putchar('\n');
fflush(stdout);
line = 0;
loop:
sum->ift_ip = 0;
sum->ift_ie = 0;
sum->ift_op = 0;
sum->ift_oe = 0;
sum->ift_co = 0;
for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) {
kread(off, &ifnet, sizeof ifnet);
if (ip == interesting)
printf("%-7d %-5d %-7d %-5d %-6d ",
ifnet.if_ipackets - ip->ift_ip,
ifnet.if_ierrors - ip->ift_ie,
ifnet.if_opackets - ip->ift_op,
ifnet.if_oerrors - ip->ift_oe,
ifnet.if_collisions - ip->ift_co);
ip->ift_ip = ifnet.if_ipackets;
ip->ift_ie = ifnet.if_ierrors;
ip->ift_op = ifnet.if_opackets;
ip->ift_oe = ifnet.if_oerrors;
ip->ift_co = ifnet.if_collisions;
sum->ift_ip += ip->ift_ip;
sum->ift_ie += ip->ift_ie;
sum->ift_op += ip->ift_op;
sum->ift_oe += ip->ift_oe;
sum->ift_co += ip->ift_co;
off = (off_t) ifnet.if_next;
}
if (lastif - iftot > 0)
printf("%-7d %-5d %-7d %-5d %-6d\n",
sum->ift_ip - total->ift_ip,
sum->ift_ie - total->ift_ie,
sum->ift_op - total->ift_op,
sum->ift_oe - total->ift_oe,
sum->ift_co - total->ift_co);
*total = *sum;
fflush(stdout);
line++;
if (interval)
sleep(interval);
if (line == 21)
goto banner;
goto loop;
/*NOTREACHED*/
}
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