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349 mateuszvis 1 
/*
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 * translates a binary file to a C include.
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 * used by the SvarCOM build process to embedd rcom inside COMMAND.COM
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 *
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 * Copyright (C) 2021 Mateusz Viste
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 */
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#include <stdio.h>
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int main(int argc, char **argv) {
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  FILE *fdin, *fdout;
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  unsigned long len;
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  int c;
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  if (argc != 4) {
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    puts("usage: file2c infile.dat outfile.c varname");
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    return(1);
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  }
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  fdin = fopen(argv[1], "rb");
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  if (fdin == NULL) {
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    puts("ERROR: failed to open input file");
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    return(1);
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  }
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  fdout = fopen(argv[2], "wb");
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  if (fdout == NULL) {
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    fclose(fdin);
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    puts("ERROR: failed to open output file");
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    return(1);
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  }
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  fprintf(fdout, "const char %s[] = {", argv[3]);
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  for (len = 0;; len++) {
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    c = getc(fdin);
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    if (c == EOF) break;
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    if (len > 0) fprintf(fdout, ",");
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    if ((len & 15) == 0) fprintf(fdout, "\r\n");
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    fprintf(fdout, "%3u", c);
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  }
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  fprintf(fdout, "};\r\n");
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  fprintf(fdout, "#define %s_len %lu\r\n", argv[3], len);
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  fclose(fdin);
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  fclose(fdout);
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  return(0);
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}