text: // bin2c.c
  //
  // convert a binary file into a C source vector
  //
  // THE "BEER-WARE LICENSE" (Revision 3.1415):
  // sandro AT sigala DOT it wrote this file. As long as you retain this notice you can do
  // whatever you want with this stuff.  If we meet some day, and you think this stuff is
  // worth it, you can buy me a beer in return.  Sandro Sigala
  //
  // syntax:  bin2c [-c] [-z] <input_file> <output_file>
  //
  //          -c    add the "const" keyword to definition
  //          -z    terminate the array with a zero (useful for embedded C strings)
  //
  // examples:
  //     bin2c -c myimage.png myimage_png.cpp
  //     bin2c -z sometext.txt sometext_txt.cpp
  
  #include <ctype.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #ifndef PATH_MAX
  #define PATH_MAX 1024
  #endif
  
  int useconst = 0;
  int zeroterminated = 0;
  
  int myfgetc(FILE *f)
  {
      int c = fgetc(f);
      if (c == EOF && zeroterminated)
      {
          zeroterminated = 0;
          return 0;
      }
      return c;
  }
  
  void process(const char *ifname, const char *ofname)
  {
      FILE *ifile, *ofile;
      ifile = fopen(ifname, "rb");
      if (ifile == NULL)
      {
          fprintf(stderr, "cannot open %s for reading\n", ifname);
          exit(1);
      }
      ofile = fopen(ofname, "wb");
      if (ofile == NULL)
      {
          fprintf(stderr, "cannot open %s for writing\n", ofname);
          exit(1);
      }
      char buf[PATH_MAX], *p;
      const char *cp;
      if ((cp = strrchr(ifname, '/')) != NULL)
      {
          ++cp;
      } else {
          if ((cp = strrchr(ifname, '\\')) != NULL)
              ++cp;
          else
              cp = ifname;
      }
      strcpy(buf, cp);
      for (p = buf; *p != '\0'; ++p)
      {
          if (!isalnum(*p))
              *p = '_';
      }
      fprintf(ofile, "static %sunsigned char %s[] = {\n", useconst ? "const " : "", buf);
      int c, col = 1;
      while ((c = myfgetc(ifile)) != EOF)
      {
          if (col >= 78 - 6)
          {
              fputc('\n', ofile);
              col = 1;
          }
          fprintf(ofile, "0x%.2x, ", c);
          col += 6;
      }
      fprintf(ofile, "\n};\n");
  
      fclose(ifile);
      fclose(ofile);
  }
  
  void usage(void)
  {
      fprintf(stderr, "usage: bin2c [-cz] <input_file> <output_file>\n");
      exit(1);
  }
  
  int main(int argc, char **argv)
  {
      while (argc > 3)
      {
          if (!strcmp(argv[1], "-c"))
          {
              useconst = 1;
              --argc;
              ++argv;
          } else if (!strcmp(argv[1], "-z"))
          {
              zeroterminated = 1;
              --argc;
              ++argv;
          } else {
              usage();
          }
      }
      if (argc != 3)
      {
          usage();
      }
      process(argv[1], argv[2]);
      return 0;
  }
  