blockhost.c

//
// Copyright (C) 2001,2002,2003,2004 Jorge Daza Garcia-Blanes
// Copyright (C) 2010 Andreas Schroeder
//
// This file is part of DrQueue
//
// 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
//

#include <stdio.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include "libdrqueue.h"

#define ACTION_NONE 0
#define ACTION_ADD 1
#define ACTION_DEL 2
#define ACTION_LIST 3

void usage (void);

int main (int argc,char *argv[]) {
  int opt;
  int ijob = -1;
  int icomp = -1;
  int action = ACTION_NONE;
  struct blocked_host *bh;
  uint16_t nblocked;
  int i;
  int nRet = 0;
  
  if(network_initialize() != 0) {
    fprintf (stderr,"Could not initialize the network: %s\n", drerrno_str());
    nRet = 1;
    goto cleanup;
  }
  
  while ((opt = getopt (argc,argv,"lj:a:d:vh")) != -1) {
    switch (opt) {
    case 'a':
      action = ACTION_ADD;
      icomp = atoi (optarg);
      break;
    case 'd':
      action = ACTION_DEL;
      icomp = atoi (optarg);
      break;
    case 'l':
      action = ACTION_LIST;
      break;
    case 'j':
      ijob = atoi (optarg);
      break;
    case 'v':
      show_version (argv);
      goto cleanup;
    case '?':
    case 'h':
      usage();
      nRet = 1;
      goto cleanup;
    }
  }

  if ((ijob == -1) || (action == ACTION_NONE)) {
    usage ();
    nRet = 1;
    goto cleanup;
  }

  set_default_env();

  if (!common_environment_check()) {
    fprintf (stderr,"Error checking the environment: %s\n",drerrno_str());
    nRet = 1;
    goto cleanup;
  }

  switch (action) {
  case ACTION_ADD:
    if (!request_job_add_blocked_host ((uint32_t)ijob,(uint32_t)icomp,CLIENT)) {
      fprintf (stderr,"ERROR: While trying to add host to block list: %s\n",drerrno_str());
      nRet = 1;
      goto cleanup;
    }
    printf ("Host blocked successfully\n");
    break;
  case ACTION_DEL:
    if (!request_job_delete_blocked_host ((uint32_t)ijob,(uint32_t)icomp,CLIENT)) {
      fprintf (stderr,"ERROR: While trying to delete host from block list: %s\n",drerrno_str());
      nRet = 1;
      goto cleanup;
    }
    printf ("Host unblocked successfully\n");
    break;
  case ACTION_LIST:
    request_job_list_blocked_host ((uint32_t)ijob,&bh,&nblocked,CLIENT);
    for (i=0;i<nblocked;i++) {
      printf ("%i\t%s\n",i,bh[i].name);
    }
    break;
  }

cleanup:
  network_shutdown();

  return nRet;
}

void usage (void) {
  fprintf (stderr,"Usage: blockhost [-vh] -c <computer_id> -j <job_id>\n"
           "    blockhost [-vh] -d <computer_pos> -j <job_id>\n"
           "    blockhost [-vh] -l -j <job_id>\n"
           "Valid options:\n"
           "\t-a <computer_id> adds computer to the list of blocked hosts\n"
           "\t-d <computer_pos> deletes computer on position computer_pos from the list of blocked hosts\n"
           "\t-l will print a list of blocked hosts for a job\n"
           "\t-j <job_id>\n"
           "\t-v print version\n"
           "\t-h print this help\n");
}