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Try to make netstat more smart about port numbers.

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Feedback most welcome.
This commit is contained in:
Poul-Henning Kamp 1996-08-23 19:05:34 +00:00
parent 321a284625
commit 8d612dd2fc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=17796
1 changed files with 21 additions and 7 deletions
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28
usr.bin/netstat/inet.c
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@ -74,7 +74,7 @@ struct tcpcb tcpcb;
struct socket sockb;
char *inetname __P((struct in_addr *));
void inetprint __P((struct in_addr *, int, char *));
void inetprint __P((struct in_addr *, int, char *, int));
/*
* Print a summary of connections related to an Internet
@ -141,8 +141,22 @@ protopr(off, name)
printf("%8x ", (int)next);
printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc,
sockb.so_snd.sb_cc);
inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport, name);
inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport, name);
if (nflag) {
inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport,
name, 1);
inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport,
name, 1);
} else if (inpcb.inp_flags & INP_ANONPORT) {
inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport,
name, 1);
inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport,
name, 0);
} else {
inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport,
name, 0);
inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport,
name, inpcb.inp_lport != inpcb.inp_fport);
}
if (istcp) {
if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES)
printf(" %d", tcpcb.t_state);
@ -431,21 +445,21 @@ igmp_stats(off, name)
/*
* Pretty print an Internet address (net address + port).
* If the nflag was specified, use numbers instead of names.
*/
void
inetprint(in, port, proto)
inetprint(in, port, proto,numeric)
register struct in_addr *in;
int port;
char *proto;
int numeric;
{
struct servent *sp = 0;
char line[80], *cp;
int width;
sprintf(line, "%.*s.", (Aflag && !nflag) ? 12 : 16, inetname(in));
sprintf(line, "%.*s.", (Aflag && !numeric) ? 12 : 16, inetname(in));
cp = index(line, '\0');
if (!nflag && port)
if (!numeric && port)
sp = getservbyport((int)port, proto);
if (sp || port == 0)
sprintf(cp, "%.15s", sp ? sp->s_name : "*");