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urlize.c

/******************************************************************************

 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 $Id: urlize.c,v 1.17 2004/12/25 23:17:44 opensides Exp $
 
******************************************************************************/

const char *progname = "urlize";
const char *revision = "$Revision: 1.17 $";
const char *copyright = "2000-2004";
const char *email = "nagiosplug-devel@lists.sourceforge.net";

#include "common.h"
#include "utils.h"
#include "popen.h"

void print_help (void);
void print_usage (void);

int
main (int argc, char **argv)
{
      int found = 0, result = STATE_UNKNOWN;
      char *url = NULL;
      char *cmd;
      char *buf;

      int c;
      int option = 0;
      static struct option longopts[] = {
            {"help", no_argument, 0, 'h'},
            {"version", no_argument, 0, 'V'},
            {"url", required_argument, 0, 'u'},
            {0, 0, 0, 0}
      };

      setlocale (LC_ALL, "");
      bindtextdomain (PACKAGE, LOCALEDIR);
      textdomain (PACKAGE);

      while (1) {
            c = getopt_long (argc, argv, "+hVu:", longopts, &option);

            if (c == -1 || c == EOF)
                  break;

            switch (c) {
            case 'h':     /* help */
                  print_help ();
                  exit (EXIT_SUCCESS);
                  break;
            case 'V':     /* version */
                  print_revision (progname, revision);
                  exit (EXIT_SUCCESS);
                  break;
            case 'u':
                  url = strdup (argv[optind]);
                  break;
            case '?':
            default:
                  usage2 (_("Unknown argument"), optarg);
            }
      }

      if (url == NULL)
            url = strdup (argv[optind++]);

      cmd = strdup (argv[optind++]);
      for (c = optind; c < argc; c++) {
            asprintf (&cmd, "%s %s", cmd, argv[c]);
      }

      child_process = spopen (cmd);
      if (child_process == NULL) {
            printf (_("Could not open pipe: %s\n"), cmd);
            exit (STATE_UNKNOWN);
      }

      child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
      if (child_stderr == NULL) {
            printf (_("Could not open stderr for %s\n"), cmd);
      }

      buf = malloc(MAX_INPUT_BUFFER);
      printf ("<A href=\"%s\">", argv[1]);
      while (fgets (buf, MAX_INPUT_BUFFER - 1, child_process)) {
            found++;
            printf ("%s", buf);
      }

      if (!found)
            die (STATE_UNKNOWN,
                 _("%s UNKNOWN - No data received from host\nCMD: %s</A>\n"),
                 argv[0], cmd);

      /* close the pipe */
      result = spclose (child_process);

      /* WARNING if output found on stderr */
      if (fgets (buf, MAX_INPUT_BUFFER - 1, child_stderr))
            result = max_state (result, STATE_WARNING);

      /* close stderr */
      (void) fclose (child_stderr);

      printf ("</A>\n");
      return result;
}



void
print_help (void)
{
      print_revision (progname, revision);

      printf ("Copyright (c) 2000 Karl DeBisschop <kdebisschop@users.sourceforge.net>\n");
      printf (COPYRIGHT, copyright, email);

      printf (_("\n\
This plugin wraps the text output of another command (plugin) in HTML\n\
<A> tags, thus displaying the plugin output in as a clickable link in\n\
the Nagios status screen.  The return status is the same as the invoked\n\
plugin.\n\n"));

      print_usage ();

      printf (_("\n\
Pay close attention to quoting to ensure that the shell passes the expected\n\
data to the plugin. For example, in:\n\
\n\
    urlize http://example.com/ check_http -H example.com -r 'two words'\n\
\n\
the shell will remove the single quotes and urlize will see:\n\
\n\
    urlize http://example.com/ check_http -H example.com -r two words\n\
\n\
You probably want:\n\
\n\
    urlize http://example.com/ \"check_http -H example.com -r 'two words'\"\n"));

      printf (_(UT_SUPPORT));
}



void
print_usage (void)
{
      printf ("Usage:\n %s <url> <plugin> <arg1> ... <argN>\n", progname);
}

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