1 /*- 2 * Copyright (c) 2007 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/sysctl.h> 31 #include <sys/user.h> 32 33 #include <err.h> 34 #include <errno.h> 35 #include <limits.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 40 #include "procstat.h" 41 42 static char args[ARG_MAX]; 43 44 void 45 procstat_args(pid_t pid, struct kinfo_proc *kipp) 46 { 47 int error, name[4]; 48 size_t len; 49 char *cp; 50 51 if (!hflag) 52 printf("%5s %-16s %-53s\n", "PID", "COMM", "ARGS"); 53 54 name[0] = CTL_KERN; 55 name[1] = KERN_PROC; 56 name[2] = KERN_PROC_ARGS; 57 name[3] = pid; 58 len = sizeof(args); 59 error = sysctl(name, 4, args, &len, NULL, 0); 60 if (error < 0 && errno != ESRCH) { 61 warn("sysctl: kern.proc.args: %d", pid); 62 return; 63 } 64 if (error < 0) 65 return; 66 if (len == 0 || strlen(args) == 0) { 67 strcpy(args, "-"); 68 len = strlen(args) + 1; 69 } 70 71 printf("%5d ", pid); 72 printf("%-16s ", kipp->ki_comm); 73 for (cp = args; cp < args + len; cp += strlen(cp) + 1) 74 printf("%s%s", cp != args ? " " : "", cp); 75 printf("\n"); 76 } 77