lib/asn1/main.c

   1 /*
   2  * Copyright (c) 1997-2005 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 #include "lex.h"
  37
  38 RCSID("$Id$");
  39
  40 extern FILE *yyin;
  41
  42 static getarg_strings preserve;
  43 static getarg_strings seq;
  44
  45 int
  46 preserve_type(const char *p)
  47 {
  48     int i;
  49     for (i = 0; i < preserve.num_strings; i++)
  50         if (strcmp(preserve.strings[i], p) == 0)
  51             return 1;
  52     return 0;
  53 }
  54
  55 int
  56 seq_type(const char *p)
  57 {
  58     int i;
  59     for (i = 0; i < seq.num_strings; i++)
  60         if (strcmp(seq.strings[i], p) == 0)
  61             return 1;
  62     return 0;
  63 }
  64
  65 int support_ber;
  66 int rfc1510_bitstring;
  67 int one_code_file;
  68 char *option_file;
  69 int version_flag;
  70 int help_flag;
  71 struct getargs args[] = {
  72     { "encode-rfc1510-bit-string", 0, arg_flag, &rfc1510_bitstring },
  73     { "decode-dce-ber", 0, arg_flag, &support_ber },
  74     { "support-ber", 0, arg_flag, &support_ber },
  75     { "preserve-binary", 0, arg_strings, &preserve },
  76     { "sequence", 0, arg_strings, &seq },
  77     { "one-code-file", 0, arg_flag, &one_code_file },
  78     { "option-file", 0, arg_string, &option_file },
  79     { "version", 0, arg_flag, &version_flag },
  80     { "help", 0, arg_flag, &help_flag }
  81 };
  82 int num_args = sizeof(args) / sizeof(args[0]);
  83
  84 static void
  85 usage(int code)
  86 {
  87     arg_printusage(args, num_args, NULL, "[asn1-file [name]]");
  88     exit(code);
  89 }
  90
  91 int error_flag;
  92
  93 int
  94 main(int argc, char **argv)
  95 {
  96     int ret;
  97     const char *file;
  98     const char *name = NULL;
  99     int optidx = 0;
 100     char **arg = NULL;
 101     size_t len = 0, i;
 102
 103     setprogname(argv[0]);
 104     if(getarg(args, num_args, argc, argv, &optidx))
 105         usage(1);
 106     if(help_flag)
 107         usage(0);
 108     if(version_flag) {
 109         print_version(NULL);
 110         exit(0);
 111     }
 112     if (argc == optidx) {
 113         file = "stdin";
 114         name = "stdin";
 115         yyin = stdin;
 116     } else {
 117         file = argv[optidx];
 118         yyin = fopen (file, "r");
 119         if (yyin == NULL)
 120             err (1, "open %s", file);
 121         if (argc == optidx + 1) {
 122             char *p;
 123             name = estrdup(file);
 124             p = strrchr(name, '.');
 125             if (p)
 126                 *p = '\0';
 127         } else
 128             name = argv[optidx + 1];
 129     }
 130
 131     /*
 132      * Parse extra options file
 133      */
 134     if (option_file) {
 135         char buf[1024];
 136         FILE *opt;
 137
 138         opt = fopen(option_file, "r");
 139         if (opt == NULL) {
 140             perror("open");
 141             exit(1);
 142         }
 143
 144         arg = calloc(2, sizeof(arg[0]));
 145         if (arg == NULL) {
 146             perror("calloc");
 147             exit(1);
 148         }
 149         arg[0] = option_file;
 150         arg[1] = NULL;
 151         len = 1;
 152
 153         while (fgets(buf, sizeof(buf), opt) != NULL) {
 154             buf[strcspn(buf, "\n\r")] = '\0';
 155
 156             arg = realloc(arg, (len + 2) * sizeof(arg[0]));
 157             if (arg == NULL) {
 158                 perror("malloc");
 159                 exit(1);
 160             }
 161             arg[len] = strdup(buf);
 162             if (arg[len] == NULL) {
 163                 perror("strdup");
 164                 exit(1);
 165             }
 166             arg[len + 1] = NULL;
 167             len++;
 168         }
 169         fclose(opt);
 170
 171         optidx = 0;
 172         if(getarg(args, num_args, len, arg, &optidx))
 173             usage(1);
 174
 175         if (len != optidx) {
 176             fprintf(stderr, "extra args");
 177             exit(1);
 178         }
 179     }
 180
 181
 182     init_generate (file, name);
 183
 184     if (one_code_file)
 185         generate_header_of_codefile(name);
 186
 187     initsym ();
 188     ret = yyparse ();
 189     if(ret != 0 || error_flag != 0)
 190         exit(1);
 191     close_generate ();
 192     if (argc != optidx)
 193         fclose(yyin);
 194
 195     if (one_code_file)
 196         close_codefile();
 197
 198     if (arg) {
 199         for (i = 1; i < len; i++)
 200             free(arg[i]);
 201         free(arg);
 202     }
 203
 204     return 0;
 205 }