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process_snapshot.c

/*
 * i-scream libstatgrab
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Id: process_snapshot.c,v 1.10 2004/04/08 13:16:04 ats Exp $
 */

#include <stdio.h>
#include <statgrab.h>
#include <stdlib.h>
#include <unistd.h>

int main(){
      sg_process_stats *ps;
      int ps_size;
      int x;
      char *state = NULL;

      /* Initialise statgrab */
      sg_init();

      /* Drop setuid/setgid privileges. */
      if (sg_drop_privileges() != 0) {
            perror("Error. Failed to drop privileges");
            return 1;
      }

      ps = sg_get_process_stats(&ps_size);

      if(ps == NULL){
            fprintf(stderr, "Failed to get process snapshot\n");
            exit(1);
      }

      qsort(ps, ps_size, sizeof *ps, sg_process_compare_pid);

      printf("%5s %5s %5s %5s %5s %5s %5s %6s %6s %9s %-10s %-4s %-8s %-20s %s\n",
            "pid", "ppid", "pgid", "uid", "euid", "gid", "egid", "size", "res", "time", "cpu", "nice", "state", "name", "title");

      for(x=0;x<ps_size;x++){
            switch (ps->state) {
            case SG_PROCESS_STATE_RUNNING:
                  state = "RUNNING";
                  break;
            case SG_PROCESS_STATE_SLEEPING:
                  state = "SLEEPING";
                  break;
            case SG_PROCESS_STATE_STOPPED:
                  state = "STOPPED";
                  break;
            case SG_PROCESS_STATE_ZOMBIE:
                  state = "ZOMBIE";
                  break;
            case SG_PROCESS_STATE_UNKNOWN:
            default:
                  state = "UNKNOWN";
                  break;
            }
            printf("%5d %5d %5d %5d %5d %5d %5d %5dM %5dM %8ds %10f %4d %-8s %-20s %s\n",
                  (int)ps->pid, (int)ps->parent, (int)ps->pgid, (int)ps->uid,
                  (int)ps->euid, (int)ps->gid, (int)ps->egid,
                  (int)(ps->proc_size / (1024*1024)),
                  (int)(ps->proc_resident / (1024*1024)),
                  (int)ps->time_spent, (float)ps->cpu_percent,
                  (int)ps->nice, state,
                  ps->process_name, ps->proctitle);
            ps++;
      }
      return 0;
}

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