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Full Discussion: Putting bash script in C program
Top Forums Programming Putting bash script in C program Post 302770631 by Corona688 on Sunday 17th of February 2013 04:06:30 PM
Old 02-17-2013
Quote:
Originally Posted by SkySmart
yes.
It would be better to put the data in the C part. If you make it a global array, they can be quite large. You could write it into the script's standard input with popen.

Code:
const unsigned char bytes[]={ 0x00, 0xab, ... };

int main(void)
{
        FILE *fp=popen("programname", "w");
        fwrite(bytes, 1, sizeof(bytes), fp);
}

you might want a decryption step between that and writing it of course, since people may be peeking in your file.

Quote:
i really believe this can be done.
By definition your program includes complete instructions for decrypting itself. How could you possibly hope to hide it? At best you can obfuscate it. A truly determined person will find the contents.

If you could force people to login to your sever to use it, that could be made secure. the program wouldn't need to run on their machine, they wouldn't have access to the file.
Last edited by Corona688; 02-17-2013 at 05:13 PM..
This User Gave Thanks to Corona688 For This Post:
SkySmart
 

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LEARN ABOUT DEBIAN

funnel

funnel(1)							     logtools								 funnel(1)

NAME

       funnel - split one pipe stream to one or more files or programs

SYNOPSIS

       funnel [|] [>[>]file] [|process]

DESCRIPTION

       The funnel program will read data from standard input and write it to several output streams.

       The | symbol means to copy standard input to standard output.

       The > symbol means that a file name immediately follows with no separating spaces, the file will be truncated if it exists or created if it
       doesn't. The >> means that the file is to be appended to if it exists.

       A | symbol followed immediately by text indicates a command that is to be run by system() and will have all input piped to it.

EXIT STATUS

       0 No errors

       1 Error opening input

       Other errors are 100 + number of commands or files that fail

AUTHOR

       This program, its manual page, and the Debian package were written by Russell Coker <russell@coker.com.au>.

FEATURES

       Uses popen (3) for output so that shell expansion gets performed.  If you want such shell expansion then you must ensure that you quote the
       parameters correctly so that they get expanded by popen (3) not the shell that calls funnel.

SEE ALSO

       popen(3)

Russell Coker <;russell@coker.com.au>				       0.06								 funnel(1)
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