05-15-2009
Quote:
Originally Posted by
jim mcnamara
It is called reverse engineering. The short answer is 'no'.
The short version of why:
compiling C: c code -> object code -> image file (exe)
The object code can be created from ANY language - FORTRAN, C, .. whatever.
Object code is all pretty much similar from language to language.
You can get assembler code from an image file, realiably.
hey jim tell me 1 more thing is it possible to delete a file permanently frm computer.
how?
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LEARN ABOUT PHP
bcompiler_write_exe_footer
BCOMPILER_WRITE_EXE_FOOTER(3) 1 BCOMPILER_WRITE_EXE_FOOTER(3)
bcompiler_write_exe_footer - Writes the start pos, and sig to the end of a exe type file
SYNOPSIS
bool bcompiler_write_exe_footer (resource $filehandle, int $startpos)
DESCRIPTION
An EXE (or self executable) file consists of 3 parts:
o The
stub (executable code, e.g. a compiled C program) that loads PHP interpreter, bcompiler extension, stored Bytecodes and initiates
a call for the specified function (e.g. main) or class method (e.g. main::main)
oThe Bytecodes (uncompressed only for the moment)
oThe bcompiler EXE footer
To obtain a suitable stub you can compile php_embed-based stub phpe.c located in the examples/embed directory on bcompiler's CVS.
PARAMETERS
o $filehandle
- A file handle as returned by fopen(3).
o $startpos
- The file position at which the Bytecodes start, and can be obtained using ftell(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
bcompiler_write_exe_footer(3) example
<?php
/* creating the output file (example.exe) */
$fh = fopen("example.exe", "w");
/* 1) writing a stub (phpe.exe) */
$size = filesize("phpe.exe");
$fr = fopen("phpe.exe", "r");
fwrite($fh, fread($fr, $size), $size);
$startpos = ftell($fh);
/* 2) writing bytecodes */
bcompiler_write_header($fh);
bcompiler_write_class($fh, "myclass");
bcompiler_write_function($fh, "main");
bcompiler_write_footer($fh);
/* 3) writing EXE footer */
bcompiler_write_exe_footer($fh, $startpos);
/* closing the output file */
fclose($fh);
?>
NOTES
Warning
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in
a future release of PHP. This function should be used at your own risk.
SEE ALSO
bcompiler_write_header(3), bcompiler_write_class(3), bcompiler_write_footer(3).
PHP Documentation Group BCOMPILER_WRITE_EXE_FOOTER(3)