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Use -M and -N for core and kernel image respectively.

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This commit is contained in:
Bruce M Simpson 2007-03-20 02:08:28 +00:00
parent 6e141df200
commit aa727a5535
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167731
2 changed files with 20 additions and 10 deletions
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15
usr.sbin/ifmcstat/ifmcstat.8
View File

@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd March 19, 2007
.Dd March 20, 2007
.Dt IFMCSTAT 8
.Os
.Sh NAME
@ -39,7 +39,8 @@
.Nm
.Op Fl i Ar interface
.Op Fl f Ar address-family
.Op Fl k Ar kernel
.Op Fl M Ar core
.Op Fl N Ar system
.Nm
.Op Ar kernel
.\"
@ -59,13 +60,17 @@ specifies the address-family to be displayed; currently only
and
.Ar inet6
are supported.
.It Fl k Ar kernel
.It Fl M Ar core
extracts values associated with the name list from the specified core,
instead of the default
.Pa /dev/kmem .
.It Fl N Ar system
extracts the name list from the specified kernel instead of the
default, which is the kernel image the system has booted from.
.It Nm Ar kernel
.It Nm Ar system
This is the same as specifying
.Nm
.Fl k Ar kernel .
.Fl N Ar system .
This usage is deprecated; it is supported only for backwards compatibility.
.Sh BUGS
.Nm

15
usr.sbin/ifmcstat/ifmcstat.c
View File

@ -29,7 +29,6 @@
* SUCH DAMAGE.
*/
/* TODO: use -M, -N for kernel/namelist. */
/* TODO: use sysctl. */
#include <sys/cdefs.h>
@ -151,12 +150,13 @@ int main(argc, argv)
int c;
struct ifnet *ifp, *nifp, ifnet;
const char *kernel = NULL;
const char *core = NULL;
/* "ifmcstat [kernel]" format is supported for backward compatiblity */
if (argc == 2)
kernel = argv[1];
while ((c = getopt(argc, argv, "i:f:k:")) != -1) {
while ((c = getopt(argc, argv, "i:f:M:N:")) != -1) {
switch (c) {
case 'i':
if ((ifindex = if_nametoindex(optarg)) == 0) {
@ -176,17 +176,22 @@ int main(argc, argv)
fprintf(stderr, "%s: unknown address family\n", optarg);
exit(1);
/*NOTREACHED*/
case 'k':
case 'M':
core = strdup(optarg);
break;
case 'N':
kernel = strdup(optarg);
break;
default:
fprintf(stderr, "usage: ifmcstat [-i interface] [-f address family] [-k kernel]\n");
fprintf(stderr,
"usage: ifmcstat [-i interface] [-f address family] [-M core] [-N system]\n");
exit(1);
/*NOTREACHED*/
}
}
if ((kvmd = kvm_openfiles(kernel, NULL, NULL, O_RDONLY, buf)) == NULL) {
if ((kvmd = kvm_openfiles(kernel, core, NULL, O_RDONLY, buf)) ==
NULL) {
perror("kvm_openfiles");
exit(1);
}