[Contents]

2. Interpreter Architecture

2.5. Builder

2.5.3. Functions implemented in this module

2.5.3.13. build_GetExeCodeOffset()

This function checks that the actually running exe contains the binary BASIC program attached to its end. It returns zero if not, otherwise it returns 1.

• The argument pszInterpreter should be argv[0] thus the code can open the executable file and check if it is really contains the BASIC code
• plOffset should point to a long variable ready to recieve the file offset where the BASIC code starts
• plEOFfset should point to a long variable ready to receive the file offset where the BASIC code finishes. This is the position of the last byte belonging to the BASIC code, thus if ftell(fp) > *plEOFfset means the file pointer is after the code and should treat it as EOF condition when reading the BASIC program code.

It is guaranteed that both *plOffset and *plEOFfset will be set to 0 (zero) if the file proves to be a standard BASIC interpreter without appended BASIC code.

int build_GetExeCodeOffset(char *pszInterpreter,
                            long *plOffset,
                            long *plEOFfset
  ){