Tyro/config/json2c.c

/*
 * bin2c: A Program to convert binary data into C source code
 * Copyright 2004 by Adrian Prantl <adrian@f4z.org>
 *
 *   This program is free software; you can redistribute it and/or modify  
 *   it under the terms of the GNU General Public License as published by  
 *   the Free Software Foundation; either version 2 of the License, or     
 *   (at your option) any later version.
 *
 */

#include <stdio.h>
#include <stdlib.h>

char* self = 0;

void usage() {
    printf("Usage:\n%s input.bin output.h name\n\n", self);
}

void bail_out(const char* s1, const char* s2) {
    fprintf(stderr, "%s: FATAL ERROR:\n%s%s\n", self, s1, s2);
    exit(1);
}

int main(int argc, char** argv) {
    FILE *fi, *fo;
    int c, i;

    self = argv[0];

    if (argc != 4) {
        usage();
        return 0;
    }

    if ((fi = fopen(argv[1], "rb")) == 0)
        bail_out("Cannot open input file ", argv[1]);

    if ((fo = fopen(argv[2], "w")) == 0)
        bail_out("Cannot open output file ", argv[2]);

    if ((c = fgetc(fi)) != EOF) {
        fprintf(fo, "#ifndef %s_H\n", argv[3]);
        fprintf(fo, "#define %s_H\n\n", argv[3]);
        fprintf(fo, "const char %s[] = {\n", argv[3]);
        fprintf(fo, c < 16 ? "   0x%02x" : "    0x%02x", c);
    }

    i = 1;
    while ((c = fgetc(fi)) != EOF) {
        if (i < 12)
            fprintf(fo, ", 0x%02x", c);
        else {
            fprintf(fo, ",\n   0x%02x", c);
            i = 0;
        }
        i++;
    }
    fprintf(fo, "\n};\n\n");
    fprintf(fo, "#endif\n");

    printf("converted %s\n", argv[1]);

    return 0;
}