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/param.h> 30 #include <sys/sysctl.h> 31 #include <sys/user.h> 32 33 #include <err.h> 34 #include <errno.h> 35 #include <libprocstat.h> 36 #include <limits.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 41 #include "procstat.h" 42 43 static char args[ARG_MAX]; 44 45 static void 46 do_args(struct kinfo_proc *kipp, int env) 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", 54 env ? "ENVIRONMENT" : "ARGS"); 55 56 name[0] = CTL_KERN; 57 name[1] = KERN_PROC; 58 name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS; 59 name[3] = kipp->ki_pid; 60 len = sizeof(args); 61 error = sysctl(name, 4, args, &len, NULL, 0); 62 if (error < 0 && errno != ESRCH && errno != EPERM) { 63 warn("sysctl: kern.proc.%s: %d: %d", env ? "env" : "args", 64 kipp->ki_pid, errno); 65 return; 66 } 67 if (error < 0) 68 return; 69 if (len == 0 || strlen(args) == 0) { 70 strcpy(args, "-"); 71 len = strlen(args) + 1; 72 } 73 74 printf("%5d ", kipp->ki_pid); 75 printf("%-16s ", kipp->ki_comm); 76 for (cp = args; cp < args + len; cp += strlen(cp) + 1) 77 printf("%s%s", cp != args ? " " : "", cp); 78 printf("\n"); 79 } 80 81 void 82 procstat_args(struct kinfo_proc *kipp) 83 { 84 do_args(kipp, 0); 85 } 86 87 void 88 procstat_env(struct kinfo_proc *kipp) 89 { 90 do_args(kipp, 1); 91 } 92