102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*-
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* Copyright (c) 1998 Andrzej Bialecki
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <dirent.h>
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/*
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* Ok, I could extract almost anything from /proc, but I'm too lazy...
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* I think it will suffice for now.
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*/
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int
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main(int argc, char *argv[])
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{
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DIR *d;
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struct dirent *e;
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FILE *fd;
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char buf[100];
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char *tok, *sep=" ", *sep1=",";
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char *name, *pid, *ppid, *uid, *gid;
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char *pgid, *sid, *tty, *cred;
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char *major, *minor;
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char con[10];
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d=opendir("/proc");
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printf(" PID PPID TTY COMMAND\n");
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while((e=readdir(d))!=NULL) {
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/* Skip '.' and '..' */
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if(e->d_name[0]=='.') continue;
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/* Skip 'curproc' - it's us */
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if(e->d_name[0]=='c') continue;
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sprintf(buf,"/proc/%s/status",e->d_name);
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fd=fopen(buf,"r");
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fgets(buf,99,fd);
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fclose(fd);
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name=strtok(buf,sep);
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pid=strtok(NULL,sep);
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ppid=strtok(NULL,sep);
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pgid=strtok(NULL,sep);
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sid=strtok(NULL,sep);
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tty=strtok(NULL,sep);
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tok=strtok(NULL,sep); /* flags */
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tok=strtok(NULL,sep); /* start */
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tok=strtok(NULL,sep); /* user time */
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tok=strtok(NULL,sep); /* system time */
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tok=strtok(NULL,sep); /* wchan */
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cred=strtok(NULL,sep); /* credentials */
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major=strtok(tty,sep1);
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minor=strtok(NULL,sep1);
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if(strcmp(minor,"-1")==0) {
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minor="?";
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}
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if(strcmp(major,"-1")==0) {
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major="?";
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} else if(strcmp(major,"12")==0) {
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major="v";
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} else if(strcmp(major,"0")==0) {
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major="con";
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minor="-";
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} else if(strcmp(major,"5")==0) {
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major="p";
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} else major="x";
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if((strcmp(major,"v")==0) && (strcmp(minor,"255")==0)) {
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major="con";
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minor="-";
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}
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sprintf(con,"%s%s",major,minor);
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printf("%5s %5s %4s (%s)\n",pid,ppid,con,name);
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}
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closedir(d);
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exit(0);
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}
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