mdw@git.distorted.org.uk Git - adns/blob - client/adh-main.c

   1 /*
   2  * adh-main.c
   3  * - useful general-purpose resolver client program
   4  *   main program and useful subroutines
   5  */
   6 /*
   7  *  This file is
   8  *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
   9  *
  10  *  It is part of adns, which is
  11  *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
  12  *    Copyright (C) 1999 Tony Finch <dot@dotat.at>
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2, or (at your option)
  17  *  any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software Foundation,
  26  *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <errno.h>
  32
  33 void sysfail(const char *what, int errnoval) {
  34   fprintf(stderr,"adnshost failed: %s: %s\n",what,strerror(errnoval));
  35   exit(10);
  36 }
  37
  38 static void domain_do_arg(const char *domain) {
  39   if (ov_pipe) usageerr("-f/--pipe not consistent with domains on command line");
  40   domain_do(arg);
  41 }
  42
  43 static void of_type(const struct optinfo *oi, const char *arg) { abort(); }
  44
  45 int main(int argc, const char *const *argv) {
  46   const char *arg;
  47   const
  48
  49   while (arg= *++argv) {
  50     if (arg[0] != '-') {
  51       if (arg[1] == '-') {
  52         oip= opt_findl(arg+2);
  53         if (oip->type == ot_funcarg) {
  54           arg= *++argv;
  55           if (!arg) usageerr("option --%s requires a value argument",oip->lopt);
  56         } else {
  57           arg= 0;
  58         }
  59         opt_do(oip,arg);
  60       } else if (arg[1] == 0) {
  61         arg= *++argv;
  62         if (!arg) usageerr("option `-' must be followed by a domain");
  63         domain_do_arg(arg);
  64       } else { /* arg[1] != '-', != '\0' */
  65         ++arg;
  66         while (*arg) {
  67           oip= opt_finds(&arg);
  68           if (oip->type == ot_funcarg) {
  69             if (!*arg) {
  70               arg= *++argv;
  71               if (!arg) usageerr("option -%s requires a value argument",oip->sopt);
  72             }
  73             arg= "";
  74           } else {
  75             arg= 0;
  76           }
  77           opt_do(oip,arg);
  78         }
  79       }
  80     } else { /* arg[0] != '-' */
  81       domain_do_arg(arg);
  82     }
  83   }
  84   abort();
  85 }