crypto/heimdal-0.6.3/lib/asn1/main.c

   1 /*
   2  * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "gen_locl.h"
  35 #include <getarg.h>
  36
  37 RCSID("$Id: main.c,v 1.11 2001/02/20 01:44:52 assar Exp $");
  38
  39 extern FILE *yyin;
  40
  41 int version_flag;
  42 int help_flag;
  43 struct getargs args[] = {
  44     { "version", 0, arg_flag, &version_flag },
  45     { "help", 0, arg_flag, &help_flag }
  46 };
  47 int num_args = sizeof(args) / sizeof(args[0]);
  48
  49 static void
  50 usage(int code)
  51 {
  52     arg_printusage(args, num_args, NULL, "[asn1-file [name]]");
  53     exit(code);
  54 }
  55
  56 int
  57 main(int argc, char **argv)
  58 {
  59     int ret;
  60     char *file;
  61     char *name = NULL;
  62     int optind = 0;
  63
  64     setprogname(argv[0]);
  65     if(getarg(args, num_args, argc, argv, &optind))
  66         usage(1);
  67     if(help_flag)
  68         usage(0);
  69     if(version_flag) {
  70         print_version(NULL);
  71         exit(0);
  72     }
  73     if (argc == optind) {
  74         file = "stdin";
  75         name = "stdin";
  76         yyin = stdin;
  77     } else {
  78         file = argv[optind];
  79         yyin = fopen (file, "r");
  80         if (yyin == NULL)
  81             err (1, "open %s", file);
  82         name = argv[optind + 1];
  83     }
  84
  85     init_generate (file, name);
  86     initsym ();
  87     ret = yyparse ();
  88     close_generate ();
  89     return ret;
  90 }