1  // BIN2C.CPP
  2  // by Jonathon Fowler (jf@jonof.id.au)
  3  
  4  // Converts a binary file to C source
  5  // This is a DOS program originally written with Borland Turbo C++ for DOS 3.1
  6  
  7  
  8  #include <string.h>
  9  #include <ctype.h>
 10  #include <stdio.h>
 11  #include <dir.h>
 12  #include <io.h>
 13  #include <stdlib.h>
 14  
 15  
 16  char defsrcext[] = ".DAT";
 17  char defoutext[] = ".C";
 18  
 19  char source[MAXPATH], output[MAXPATH], bytesize;
 20  
 21  
 22  int PathAddExt(char *path, char *ext);
 23  
 24  
 25  int main(int argc, char *argv[])
 26  {
 27      printf("BIN2C - Binary to C data converter\n"
 28               "Copyright (c) 1999 Jonathon Fowler\n\n");
 29  
 30      if (argc < 4)
 31      {
 32          printf("Usage:\n"
 33                   "   BIN2C source<.DAT> output<.C> b|w\n\n"
 34                   "   source<.DAT>   Binary source file\n"
 35                   "   output<.C>     Output C code file\n"
 36                   "   b|w            Byte or word-sized data\n\n");
 37          exit(0);
 38      }
 39  
 40      int arg;
 41      FILE *in, *out;
 42      char datab1, datab2;
 43      int across=0, maxacross;
 44      int length, written=0;
 45  
 46  
 47      // get the source file
 48      strcpy(source, argv[1]);
 49      strupr(source);
 50      PathAddExt(source, defsrcext);
 51      printf("� Source file:  %s\n", source);
 52  
 53      // get the output file
 54      strcpy(output, argv[2]);
 55      strupr(output);
 56      PathAddExt(output, defoutext);
 57      printf("� Output file:  %s\n", output);
 58  
 59      // get byte/word data
 60      switch (tolower(argv[3][0]))
 61      {
 62          case 'b':
 63              printf("� Byte data.\n");
 64              bytesize=1;
 65              break;
 66  
 67          case 'w':
 68              printf("� Word data.\n");
 69              bytesize=0;
 70              break;
 71  
 72          default:
 73              printf("� Unknown data size specified. Defaulting to byte.\n");
 74              bytesize=1;
 75              break;
 76      }
 77  
 78      // open the input file
 79      in = fopen(source, "rb");
 80      if (!in)
 81      {
 82          printf("Error opening %s\n", source);
 83          exit(1);
 84      }
 85  
 86      // open the output file
 87      out = fopen(output, "w+t");
 88      if (!out)
 89      {
 90          printf("Error creating %s\n", output);
 91          exit(1);
 92      }
 93  
 94      length = filelength(fileno(in));
 95  
 96      // write a header out to the output file
 97      fprintf(out, "// %s\n\n// Generated by BIN2C.EXE\n// By Jonathon Fowler\n\n", output);
 98  
 99      // start a data block
100      fprintf(out, "%s datablock[] = {\n // %ld bytes", (bytesize) ? "char" : "unsigned", length);
101  
102      if (bytesize)
103          maxacross = 12;
104      else
105          maxacross = 9;
106      across = maxacross;
107  
108      // convert the data
109      for (written=0; written<length; written++) {
110          if (across == maxacross)
111          {
112              fprintf(out, "\n  ");
113              across = 0;
114          }
115  
116          if (bytesize)
117          {
118              datab1 = fgetc(in);
119              fprintf(out, " 0x%02X%c", datab1, ((length-written)>1) ? ',' : '\n');
120          } else {
121              datab1 = fgetc(in);
122              datab2 = fgetc(in);
123              fprintf(out, " 0x%02X%02X%c", datab2, datab1, ((length-written)>2) ? ',' : '\n');
124          }
125  
126          across++;
127  
128          if (!bytesize) written++;
129      }
130  
131  
132      fprintf(out, "  };");
133  
134      fclose(out);
135      fclose(in);
136  
137      return 0;
138  }
139  
140  
141  // Add an extention to a path if one doesn't exist
142  int PathAddExt(char *path, char *ext)
143  {
144      char drive[MAXDRIVE], dir[MAXDIR], name[MAXFILE], extn[MAXEXT];
145      int flags;
146  
147      flags = fnsplit(path, drive, dir, name, extn);
148  
149      if (!(flags & EXTENSION))    // tack on an extension
150          strcat(path, ext);
151  
152      return ((flags & EXTENSION) == 0);
153  }