freebsd-skq/usr.bin/procstat/procstat_args.c
Robert Watson 5a246d2912 Add 'COMM' column to a few more output modes of procstat(1). The only
one it's missing from is the VM display, where there's really not room,
and the file output display is looking quite cramped.
2007-12-10 20:55:43 +00:00

77 lines
2.3 KiB
C

/*-
* Copyright (c) 2007 Robert N. M. Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "procstat.h"
static char args[ARG_MAX];
void
procstat_args(pid_t pid, struct kinfo_proc *kipp)
{
int error, name[4];
size_t len;
char *cp;
if (!hflag)
printf("%5s %-16s %-53s\n", "PID", "COMM", "ARGS");
name[0] = CTL_KERN;
name[1] = KERN_PROC;
name[2] = KERN_PROC_ARGS;
name[3] = pid;
len = sizeof(args);
error = sysctl(name, 4, args, &len, NULL, 0);
if (error < 0 && errno != ESRCH) {
warn("sysctl: kern.proc.args: %d", pid);
return;
}
if (error < 0)
return;
if (len == 0 || strlen(args) == 0) {
strcpy(args, "-");
len = strlen(args) + 1;
}
printf("%5d ", pid);
printf("%-16s ", kipp->ki_comm);
for (cp = args; cp < args + len; cp += strlen(cp) + 1)
printf("%s%s", cp != args ? " " : "", cp);
printf("\n");
}