obfuscate.c

   1 /*
   2  * Example trivial client program that uses the sparse library
   3  * to tokenize, preprocess and parse a C file, and prints out
   4  * the results.
   5  *
   6  * Copyright (C) 2003 Transmeta Corp.
   7  *               2003-2004 Linus Torvalds
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a copy
  10  * of this software and associated documentation files (the "Software"), to deal
  11  * in the Software without restriction, including without limitation the rights
  12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13  * copies of the Software, and to permit persons to whom the Software is
  14  * furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included in
  17  * all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25  * THE SOFTWARE.
  26  */
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <ctype.h>
  32 #include <unistd.h>
  33 #include <fcntl.h>
  34
  35 #include "lib.h"
  36 #include "allocate.h"
  37 #include "token.h"
  38 #include "parse.h"
  39 #include "symbol.h"
  40 #include "expression.h"
  41 #include "linearize.h"
  42
  43 static void emit_entrypoint(struct entrypoint *ep)
  44 {
  45
  46 }
  47
  48 static void emit_symbol(struct symbol *sym)
  49 {
  50         struct entrypoint *ep;
  51         ep = linearize_symbol(sym);
  52         if (ep)
  53                 emit_entrypoint(ep);
  54 }
  55
  56 static void emit_symbol_list(struct symbol_list *list)
  57 {
  58         struct symbol *sym;
  59
  60         FOR_EACH_PTR(list, sym) {
  61                 expand_symbol(sym);
  62                 emit_symbol(sym);
  63         } END_FOR_EACH_PTR(sym);
  64 }
  65
  66 int main(int argc, char **argv)
  67 {
  68         struct string_list *filelist = NULL;
  69         char *file;
  70
  71         emit_symbol_list(sparse_initialize(argc, argv, &filelist));
  72         FOR_EACH_PTR_NOTAG(filelist, file) {
  73                 emit_symbol_list(sparse(file));
  74         } END_FOR_EACH_PTR_NOTAG(file);
  75         return 0;
  76 }