procstat_args.c revision 225736
148734Siwasaki/*- 248734Siwasaki * Copyright (c) 2007 Robert N. M. Watson 350472Speter * All rights reserved. 448734Siwasaki * 548734Siwasaki * Redistribution and use in source and binary forms, with or without 648734Siwasaki * modification, are permitted provided that the following conditions 748734Siwasaki * are met: 848734Siwasaki * 1. Redistributions of source code must retain the above copyright 948734Siwasaki * notice, this list of conditions and the following disclaimer. 1048734Siwasaki * 2. Redistributions in binary form must reproduce the above copyright 1148734Siwasaki * notice, this list of conditions and the following disclaimer in the 1248734Siwasaki * documentation and/or other materials provided with the distribution. 1348734Siwasaki * 1448734Siwasaki * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1548734Siwasaki * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1648734Siwasaki * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1748734Siwasaki * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1848734Siwasaki * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1948734Siwasaki * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2048734Siwasaki * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2148734Siwasaki * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2248734Siwasaki * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2348734Siwasaki * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2448734Siwasaki * SUCH DAMAGE. 2548734Siwasaki * 2648734Siwasaki * $FreeBSD: stable/9/usr.bin/procstat/procstat_args.c 221807 2011-05-12 10:11:39Z stas $ 2748734Siwasaki */ 2848734Siwasaki 2948734Siwasaki#include <sys/param.h> 3048734Siwasaki#include <sys/sysctl.h> 3148734Siwasaki#include <sys/user.h> 3248734Siwasaki 3348734Siwasaki#include <err.h> 3448734Siwasaki#include <errno.h> 3548734Siwasaki#include <libprocstat.h> 3648734Siwasaki#include <limits.h> 3748734Siwasaki#include <stdio.h> 3848734Siwasaki#include <stdlib.h> 39#include <string.h> 40 41#include "procstat.h" 42 43static char args[ARG_MAX]; 44 45void 46procstat_args(struct kinfo_proc *kipp) 47{ 48 int error, name[4]; 49 size_t len; 50 char *cp; 51 52 if (!hflag) 53 printf("%5s %-16s %-53s\n", "PID", "COMM", "ARGS"); 54 55 name[0] = CTL_KERN; 56 name[1] = KERN_PROC; 57 name[2] = KERN_PROC_ARGS; 58 name[3] = kipp->ki_pid; 59 len = sizeof(args); 60 error = sysctl(name, 4, args, &len, NULL, 0); 61 if (error < 0 && errno != ESRCH) { 62 warn("sysctl: kern.proc.args: %d", kipp->ki_pid); 63 return; 64 } 65 if (error < 0) 66 return; 67 if (len == 0 || strlen(args) == 0) { 68 strcpy(args, "-"); 69 len = strlen(args) + 1; 70 } 71 72 printf("%5d ", kipp->ki_pid); 73 printf("%-16s ", kipp->ki_comm); 74 for (cp = args; cp < args + len; cp += strlen(cp) + 1) 75 printf("%s%s", cp != args ? " " : "", cp); 76 printf("\n"); 77} 78