1 /* 2 * KSHOWPROCS.C 3 * 4 * cc kshowprocs.c -o /usr/local/bin/kshowprocs -g -O0 -pipe -lkvm 5 * 6 * Dump kernel processes 7 * 8 * Copyright (c) 2011 The DragonFly Project. All rights reserved. 9 * 10 * This code is derived from software contributed to The DragonFly Project 11 * by Antonio Huete <tuxillo@quantumachine.net> 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in 21 * the documentation and/or other materials provided with the 22 * distribution. 23 * 3. Neither the name of The DragonFly Project nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific, prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <fcntl.h> 46 #include <kvm.h> 47 #include <err.h> 48 #include <nlist.h> 49 #include <getopt.h> 50 51 #include <sys/user.h> 52 #include <sys/sysctl.h> 53 54 int debugopt; 55 int verboseopt; 56 57 int 58 main(int ac, char **av) 59 { 60 const char *corefile = NULL; 61 const char *sysfile = NULL; 62 struct kinfo_proc *kp; 63 kvm_t *kd; 64 int ch; 65 int i; 66 int nprocs; 67 68 while ((ch = getopt(ac, av, "M:N:v")) != -1) { 69 switch(ch) { 70 case 'v': 71 ++verboseopt; 72 break; 73 case 'M': 74 corefile = optarg; 75 break; 76 case 'N': 77 sysfile = optarg; 78 break; 79 default: 80 fprintf(stderr, "%s [-M core] [-N system]\n", av[0]); 81 exit(1); 82 } 83 } 84 ac -= optind; 85 av += optind; 86 87 if ((kd = kvm_open(sysfile, corefile, NULL, O_RDONLY, "kvm:")) == NULL) { 88 perror("kvm_open"); 89 exit(1); 90 } 91 92 if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nprocs)) == NULL) 93 errx(1, "%s", kvm_geterr(kd)); 94 95 fprintf(stdout, "%-6s %-6s %-20s %-10s %-5s\n", 96 "PID", 97 "PPID", 98 "COMMAND", 99 "LOGIN", 100 "NICE"); 101 102 for (i = 0; i < nprocs; i++) { 103 fprintf(stdout, "%-6d %-6d %-20s %-10s %-5d\n", 104 kp[i].kp_pid, 105 kp[i].kp_ppid, 106 kp[i].kp_comm, 107 kp[i].kp_login, 108 kp[i].kp_nice); 109 } 110 111 kvm_close(kd); 112 113 return 0; 114 115 } 116