diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-06-10 07:48:32 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-06-10 07:48:32 +0000 |
| commit | 38e9936a94dc4b2255c08c92d794c6bbda00bf19 (patch) | |
| tree | fe7f276b0f3a60ccf86479fdbbd2507e354b29b5 /usr.bin/netstat/if.c | |
| parent | 3fb1d3fc24dae7c5506be7d6bae54ecc97348ba0 (diff) | |
handle up to 100 interfaces, nice message for non-existing interface
Diffstat (limited to 'usr.bin/netstat/if.c')
| -rw-r--r-- | usr.bin/netstat/if.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/usr.bin/netstat/if.c b/usr.bin/netstat/if.c index 11884bd1eb8..879a7e9055b 100644 --- a/usr.bin/netstat/if.c +++ b/usr.bin/netstat/if.c @@ -1,4 +1,4 @@ -/* $NetBSD: if.c,v 1.16 1996/05/07 05:30:45 thorpej Exp $ */ +/* $NetBSD: if.c,v 1.16.4.1 1996/06/04 20:27:06 cgd Exp $ */ /* * Copyright (c) 1983, 1988, 1993 @@ -37,7 +37,7 @@ #if 0 static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94"; #else -static char *rcsid = "$NetBSD: if.c,v 1.16 1996/05/07 05:30:45 thorpej Exp $"; +static char *rcsid = "$NetBSD: if.c,v 1.16.4.1 1996/06/04 20:27:06 cgd Exp $"; #endif #endif /* not lint */ @@ -239,7 +239,7 @@ intpr(interval, ifnetaddr) } } -#define MAXIF 10 +#define MAXIF 100 struct iftot { char ift_name[IFNAMSIZ]; /* interface name */ int ift_ip; /* input packets */ @@ -283,7 +283,7 @@ sidewaysintpr(interval, off) lastif = iftot; sum = iftot + MAXIF - 1; total = sum - 1; - interesting = iftot; + interesting = (interface == NULL) ? iftot : NULL; for (off = firstifnet, ip = iftot; off;) { if (kread(off, (char *)&ifnet, sizeof ifnet)) break; @@ -298,6 +298,11 @@ sidewaysintpr(interval, off) break; off = (u_long)ifnet.if_list.tqe_next; } + if (interesting == NULL) { + fprintf(stderr, "%s: %s: unknown interface\n", + __progname, interface); + exit(1); + } lastif = ip; (void)signal(SIGALRM, catchalarm); |