binutils/bin2c.c

   1 /* bin2c.c -- dump binary file in hex format
   2    Copyright (C) 2007-2024 Free Software Foundation, Inc.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include "binary-io.h"
  24
  25 int
  26 main (int argc, char *argv[])
  27 {
  28   int c;
  29   int i;
  30
  31   if (argc != 1)
  32     {
  33       int ishelp = 0;
  34       FILE *stream;
  35
  36       if (argc == 2 && argv[1][0] == '-')
  37         {
  38           const char *opt = &argv[1][1];
  39           if (*opt == '-')
  40             ++opt;
  41           ishelp = *opt == 'h' || *opt == 'H';
  42         }
  43
  44       stream = ishelp ? stdout : stderr;
  45       fprintf (stream, "Usage: %s < input_file > output_file\n", argv[0]);
  46       fprintf (stream, "Prints bytes from stdin in hex format.\n");
  47       exit (!ishelp);
  48     }
  49
  50   SET_BINARY (fileno (stdin));
  51
  52   i = 0;
  53   while ((c = getc (stdin)) != EOF)
  54     {
  55       printf ("0x%02x,", c);
  56       if (++i == 16)
  57         {
  58           printf ("\n");
  59           i = 0;
  60         }
  61     }
  62   if (i != 0)
  63     printf ("\n");
  64
  65   exit (0);
  66 }