1  /*
       2   * manpath.c: display either the manpath or catpath
       3   *
       4   * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
       5   * Copyright (C) 2001, 2002 Colin Watson.
       6   *
       7   * This file is part of man-db.
       8   *
       9   * man-db is free software; you can redistribute it and/or modify it
      10   * under the terms of the GNU General Public License as published by
      11   * the Free Software Foundation; either version 2 of the License, or
      12   * (at your option) any later version.
      13   *
      14   * man-db is distributed in the hope that it will be useful, but
      15   * WITHOUT ANY WARRANTY; without even the implied warranty of
      16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17   * GNU General Public License for more details.
      18   *
      19   * You should have received a copy of the GNU General Public License
      20   * along with man-db; if not, write to the Free Software Foundation,
      21   * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
      22   *
      23   * Thu Nov 17 08:29:39 GMT 1994  Wilf. (G.Wilford@ee.surrey.ac.uk)
      24   */
      25  
      26  #ifdef HAVE_CONFIG_H
      27  #include "config.h"
      28  #endif /* HAVE_CONFIG_H */
      29  
      30  #include <stdbool.h>
      31  #include <string.h>
      32  #include <stdlib.h>
      33  #include <stdio.h>
      34  #include <errno.h>
      35  #include <unistd.h>
      36  #include <limits.h>
      37  
      38  #include "argp.h"
      39  #include "error.h"
      40  #include "progname.h"
      41  
      42  #include "gettext.h"
      43  #define _(String) gettext (String)
      44  #define N_(String) gettext_noop (String)
      45  
      46  #include "manconfig.h"
      47  
      48  #include "debug.h"
      49  #include "util.h"
      50  
      51  #include "manp.h"
      52  
      53  int quiet = 0;
      54  
      55  static bool cat = false;
      56  static bool global = false;
      57  static const char *alt_system = "";
      58  extern char *user_config_file;
      59  
      60  const char *argp_program_version = "manpath " PACKAGE_VERSION;
      61  const char *argp_program_bug_address = PACKAGE_BUGREPORT;
      62  error_t argp_err_exit_status = FAIL;
      63  
      64  static struct argp_option options[] = {
      65  	OPT ("catpath", 'c', 0, N_("show relative catpaths")),
      66  	OPT ("global", 'g', 0, N_("show the entire global manpath")),
      67  	OPT ("debug", 'd', 0, N_("emit debugging messages")),
      68  	OPT ("quiet", 'q', 0, N_("produce fewer warnings")),
      69  	OPT ("config-file", 'C', N_("FILE"),
      70  	     N_("use this user configuration file")),
      71  	OPT ("systems", 'm', N_("SYSTEM"),
      72  	     N_("use manual pages from other systems")),
      73  	OPT_HELP_COMPAT,
      74  	{ 0 }
      75  };
      76  
      77  static error_t parse_opt (int key, char *arg, struct argp_state *state)
      78  {
      79  	switch (key) {
      80  		case 'c':
      81  			cat = true;
      82  			return 0;
      83  		case 'g':
      84  			global = true;
      85  			quiet = 1;
      86  			return 0;
      87  		case 'd':
      88  			debug_level = true;
      89  			return 0;
      90  		case 'q':
      91  			quiet = 1;
      92  			return 0;
      93  		case 'C':
      94  			user_config_file = arg;
      95  			return 0;
      96  		case 'm':
      97  			alt_system = arg;
      98  			return 0;
      99  		case 'h':
     100  			argp_state_help (state, state->out_stream,
     101  					 ARGP_HELP_STD_HELP);
     102  			break;
     103  	}
     104  	return ARGP_ERR_UNKNOWN;
     105  }
     106  
     107  static struct argp argp = { options, parse_opt };
     108  
     109  /*
     110   * Examine user's PATH and print a reasonable MANPATH.
     111   */
     112  int main (int argc, char *argv[])
     113  {
     114  	char *path_string;
     115  
     116  	set_program_name (argv[0]);
     117  
     118  	init_debug ();
     119  	init_locale ();
     120  
     121  	if (argp_parse (&argp, argc, argv, 0, 0, 0))
     122  		exit (FAIL);
     123  
     124  	path_string = get_manpath (alt_system);
     125  
     126  	if (global) {
     127  		path_string = get_mandb_manpath ();
     128  		if (!path_string)
     129  			error (FAIL, 0,
     130  			       _("warning: no global manpaths set in "
     131  				 "config file %s"),
     132  			       CONFIG_FILE);
     133  	}
     134  	if (cat)
     135  		path_string = cat_manpath (path_string);
     136  
     137  	printf ("%s\n", path_string);
     138  	exit (OK);
     139  }