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manpath.c

/*
 * manpath.c: display either the manpath or catpath
 *  
 * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
 * Copyright (C) 2001, 2002 Colin Watson.
 *
 * This file is part of man-db.
 *
 * man-db 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.
 *
 * man-db 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 man-db; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Thu Nov 17 08:29:39 GMT 1994  Wilf. (G.Wilford@ee.surrey.ac.uk) 
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */

#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <termios.h>

#if defined(STDC_HEADERS)
#  include <string.h>
#  include <stdlib.h>
#elif defined(HAVE_STRING_H)
#  include <string.h>
#elif defined(HAVE_STRINGS_H)
#  include <strings.h>
#endif /* STDC_HEADERS */

#if defined(HAVE_UNISTD_H)
#  include <unistd.h>
#endif /* HAVE_UNISTD_H */

#if defined(HAVE_LIMITS_H)
#  include <limits.h>
#elif defined(HAVE_SYS_PARAM_H)
#  include <sys/param.h>
#endif

#ifdef HAVE_LIBGEN_H
#  include <libgen.h>
#endif /* HAVE_LIBGEN_H */

#ifdef HAVE_GETOPT_H
#  include <getopt.h>
#else /* !HAVE_GETOPT_H */
#  include "lib/getopt.h"
#endif /* HAVE_GETOPT_H */

#include <locale.h>
#include <libintl.h>
#define _(String) gettext (String)

#include "manconfig.h"
#include "lib/error.h"
#include "manp.h"

extern char *optarg;
extern int optind, opterr, optopt;

int debug = 0;
char *program_name;
int quiet = 0;

extern char *user_config_file;

static const struct option long_options[] =
{
    {"catpath",       no_argument,  0, 'c'},
    {"global",        no_argument,  0, 'g'},
    {"debug",         no_argument,  0, 'd'},
    {"help",          no_argument,  0, 'h'},
    {"quiet",         no_argument,  0, 'q'},
    {"version",       no_argument,  0, 'V'},
    {"config-file", required_argument,    0, 'C'},
    {"systems",       required_argument,  0, 'm'},
    {0, 0, 0, 0}
};

static const char args[] = "cgdhqVC:m:";

static void usage (int status)
{
      printf (_( 
            "usage: %s [[-gcdq] [-C file] [-m system]] | [-V] | [-h]\n"),
            program_name);
      printf (_(
            "-c, --catpath               show relative catpaths.\n"
            "-g, --global                show the entire global manpath.\n"
              "-d, --debug                 produce debugging info.\n"
              "-q, --quiet                 produce fewer warnings.\n"
            "-C, --config-file file      use this user configuration file.\n"
              "-m, --systems system        express which `systems' to use.\n"
              "-V, --version               show version.\n"
              "-h, --help                  show this usage message.\n"));

      exit (status);
}

/*
 * Examine user's PATH and print a reasonable MANPATH.
 */
int main (int argc, char *argv[])
{
      int c, global = 0, cat = 0;
      const char *alt_system = "";
      char *path_string;
      int option_index; /* not used, but required by getopt_long() */

      program_name = xstrdup (basename (argv[0]));
      /* initialise the locale */
      if (!setlocale (LC_ALL, ""))
            /* Obviously can't translate this. */
            error (0, 0, "can't set the locale; make sure $LC_* and $LANG "
                       "are correct");
      bindtextdomain (PACKAGE, LOCALEDIR);
      textdomain (PACKAGE);

      while ((c = getopt_long (argc, argv, args,
                         long_options, &option_index)) != EOF) {
            switch (c) {

                  case 'c':
                        cat = 1;
                        break;
                  case 'd':
                        debug = 1;
                        break;
                  case 'q':
                        quiet = 1;
                        break;
                  case 'C':
                        user_config_file = optarg;
                        break;
                  case 'm':
                        alt_system = optarg;
                        break;
                  case 'g':
                        global = 1;
                        quiet = 1;
                        break;
                  case 'V':
                        ver();
                        break;
                  case 'h':
                        usage(OK);
                        break;
                  default:
                        usage(FAIL);
                        break;
            }
      }
      
      path_string = manpath (alt_system);

      if (global) {
            path_string = get_mandb_manpath ();
            if (!path_string)
                  error (FAIL, 0,
                         _("warning: no global manpaths set in "
                         "config file %s"),
                         CONFIG_FILE);
      }
      if (cat)
            path_string = cat_manpath (path_string);

      printf ("%s\n", path_string);
      exit (OK);
}

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