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Implemented two modifier flags for -a and -l: -d (only show "down" interfaces) 

and -u (only show "up" interfaces)
This commit is contained in:
lukem 1997-04-21 01:17:57 +00:00
parent fc43576e8d
commit 13d5dd4446
2 changed files with 50 additions and 23 deletions
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33
sbin/ifconfig/ifconfig.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: ifconfig.8,v 1.16 1997/04/10 19:10:16 is Exp $
.\" $NetBSD: ifconfig.8,v 1.17 1997/04/21 01:17:57 lukem Exp $
.\"
.\" Copyright (c) 1983, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@ -33,7 +33,7 @@
.\"
.\" @(#)ifconfig.8 8.4 (Berkeley) 6/1/94
.\"
.Dd June 1, 1994
.Dd April 16, 1997
.Dt IFCONFIG 8
.Os BSD 4.2
.Sh NAME
@ -54,22 +54,26 @@
.Nm ifconfig
.Fl a
.Op Fl m
.Op Fl d
.Op Fl u
.Op Ar protocol_family
.Nm ifconfig
.Fl l
.Op Fl d
.Op Fl u
.Sh DESCRIPTION
.Nm Ifconfig
.Nm
is used to assign an address
to a network interface and/or configure
network interface parameters.
.Nm Ifconfig
.Nm
must be used at boot time to define the network address
of each interface present on a machine; it may also be used at
a later time to redefine an interface's address
or other operating parameters.
.Pp
Available operands for
.Nm ifconfig:
.Nm ifconfig :
.Bl -tag -width Ds
.It Ar Address
For the
@ -290,8 +294,7 @@ If the interface was reset when previously marked down,
the hardware will be re-initialized.
.El
.Pp
.Pp
.Nm Ifconfig
.Nm
displays the current configuration for a network interface
when no optional parameters are supplied.
If a protocol family is specified,
@ -300,19 +303,29 @@ Ifconfig will report only the details specific to that protocol family.
If the
.Fl m
flag is passed before an interface name,
.Nm ifconfig
.Nm
will display all of the supported media for the specified interface.
.Pp
Optionally, the
.Fl a
flag may be used instead of an interface name. This flag instructs
.Nm ifconfig
.Nm
to display information about all interfaces in the system.
.Fl d
limits this to interfaces that are down, and
.Fl u
limits this to interfaces that are up.
.Pp
The
.Fl l
flag may be used to list all available interfaces on the system, with
no other additional information. Use of this flag is mutually exclusive
with all other flags and commands.
with all other flags and commands, except for
.Fl d
(only list interfaces that are down)
and
.Fl u
(only list interfaces that are up).
.Pp
Only the super-user may modify the configuration of a network interface.
.Sh DIAGNOSTICS

40
sbin/ifconfig/ifconfig.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ifconfig.c,v 1.33 1997/04/10 19:10:17 is Exp $ */
/* $NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $ */
/*
* Copyright (c) 1997 Jason R. Thorpe.
@ -75,7 +75,7 @@ static char copyright[] =
#if 0
static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
#else
static char rcsid[] = "$NetBSD: ifconfig.c,v 1.33 1997/04/10 19:10:17 is Exp $";
static char rcsid[] = "$NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $";
#endif
#endif /* not lint */
@ -121,7 +121,7 @@ int clearaddr, s;
int newaddr = 1;
int nsellength = 1;
int af;
int mflag, lflag;
int dflag, mflag, lflag, uflag;
void notealias __P((char *, int));
void notrailers __P((char *, int));
@ -257,12 +257,16 @@ main(argc, argv)
/* Parse command-line options */
aflag = mflag = 0;
while ((ch = getopt(argc, argv, "alm")) != -1) {
while ((ch = getopt(argc, argv, "adlmu")) != -1) {
switch (ch) {
case 'a':
aflag = 1;
break;
case 'd':
dflag = 1;
break;
case 'l':
lflag = 1;
break;
@ -271,6 +275,10 @@ main(argc, argv)
mflag = 1;
break;
case 'u':
uflag = 1;
break;
default:
usage();
/* NOTREACHED */
@ -467,7 +475,7 @@ printall()
err(1, "SIOCGIFCONF");
ifr = ifc.ifc_req;
ifreq.ifr_name[0] = '\0';
for (i = 0, idx = 0; i < ifc.ifc_len; idx++) {
for (i = 0, idx = 0; i < ifc.ifc_len; ) {
ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i);
i += sizeof(ifr->ifr_name) +
(ifr->ifr_addr.sa_len > sizeof(struct sockaddr)
@ -481,18 +489,24 @@ printall()
(void) strncpy(name, ifr->ifr_name, sizeof(ifr->ifr_name));
ifreq = *ifr;
if (getinfo(&ifreq) < 0)
continue;
if (dflag && (flags & IFF_UP) != 0)
continue;
if (uflag && (flags & IFF_UP) == 0)
continue;
idx++;
/*
* Are we just listing the interfaces?
*/
if (lflag) {
if (idx)
if (idx > 1)
putchar(' ');
printf(name);
fputs(name, stdout);
continue;
}
if (getinfo(&ifreq) < 0)
continue;
if (sdl == NULL) {
status(NULL, 0);
} else {
@ -577,7 +591,7 @@ notrailers(vname, value)
char *vname;
int value;
{
printf("Note: trailers are no longer sent, but always received\n");
puts("Note: trailers are no longer sent, but always received");
}
/*ARGSUSED*/
@ -1444,7 +1458,7 @@ xns_getaddr(addr, which)
sns->sns_len = sizeof(*sns);
sns->sns_addr = ns_addr(addr);
if (which == MASK)
printf("Attempt to set XNS netmask will be ineffectual\n");
puts("Attempt to set XNS netmask will be ineffectual");
}
#define SISO(x) ((struct sockaddr_iso *) &(x))
@ -1522,7 +1536,7 @@ usage()
"\t[ mediaopt mopts ]\n",
"\t[ -mediaopt mopts ]\n",
"\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n",
" ifconfig -a [ -m ] [ af ]\n",
" ifconfig -l\n");
" ifconfig -a [ -m ] [ -d ] [ -u ] [ af ]\n",
" ifconfig -l [ -d ] [ -u ]\n");
exit(1);
}