1/*- 2 * Copyright (c) 1998 Andrzej Bialecki 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 30#include <stdio.h> 31#include <string.h> 32#include <sys/types.h> 33#include <dirent.h> 34 35/* 36 * Ok, I could extract almost anything from /proc, but I'm too lazy... 37 * I think it will suffice for now. 38 */ 39 40int 41main(int argc, char *argv[]) 42{ 43 DIR *d; 44 struct dirent *e; 45 FILE *fd; 46 char buf[100]; 47 char *tok, *sep=" ", *sep1=","; 48 char *name, *pid, *ppid, *uid, *gid; 49 char *pgid, *sid, *tty, *cred; 50 char *major, *minor; 51 char con[10]; 52 53 d=opendir("/proc"); 54 printf(" PID PPID TTY COMMAND\n"); 55 while((e=readdir(d))!=NULL) { 56 /* Skip '.' and '..' */ 57 if(e->d_name[0]=='.') continue; 58 /* Skip 'curproc' - it's us */ 59 if(e->d_name[0]=='c') continue; 60 sprintf(buf,"/proc/%s/status",e->d_name); 61 fd=fopen(buf,"r"); 62 fgets(buf,99,fd); 63 fclose(fd); 64 name=strtok(buf,sep); 65 pid=strtok(NULL,sep); 66 ppid=strtok(NULL,sep); 67 pgid=strtok(NULL,sep); 68 sid=strtok(NULL,sep); 69 tty=strtok(NULL,sep); 70 tok=strtok(NULL,sep); /* flags */ 71 tok=strtok(NULL,sep); /* start */ 72 tok=strtok(NULL,sep); /* user time */ 73 tok=strtok(NULL,sep); /* system time */ 74 tok=strtok(NULL,sep); /* wchan */ 75 cred=strtok(NULL,sep); /* credentials */ 76 major=strtok(tty,sep1); 77 minor=strtok(NULL,sep1); 78 if(strcmp(minor,"-1")==0) { 79 minor="?"; 80 } 81 if(strcmp(major,"-1")==0) { 82 major="?"; 83 } else if(strcmp(major,"12")==0) { 84 major="v"; 85 } else if(strcmp(major,"0")==0) { 86 major="con"; 87 minor="-"; 88 } else if(strcmp(major,"5")==0) { 89 major="p"; 90 } else major="x"; 91 if((strcmp(major,"v")==0) && (strcmp(minor,"255")==0)) { 92 major="con"; 93 minor="-"; 94 } 95 sprintf(con,"%s%s",major,minor); 96 printf("%5s %5s %4s (%s)\n",pid,ppid,con,name); 97 98 } 99 closedir(d); 100 exit(0); 101} 102