/*
** This is curlfish, a program just about as simple as they come.  
** The name comes from an abreviation of, then an expansion of, "CRLF shell"
** (CRLF SHELL -> crlfsh - > curlfish)
** 
**
** In fact, the curlfish program is no more than "Hello World!".  The real
** hack is in filenames (filenames of symbolic links, actually).  The actual 
** binary is installed in /bin and you make multiple symlinks to it, named 
** exactly the same as real script interpreters, except followed by a carriage 
** return character.  Thus, when a file is created under DOS or Windows, and 
** has CRLF line terminations, the script has a valid interpreter to call via 
** its #! line.
**
** For example, A script is created under Windows which should call /bin/ksh,
** but because it has DOS style line terminations, it actually calls 
** /bin/ksh^M  Usually this results in a rather cryptic message indicating
** that the interpreter does not exist.  A casual inspection of the file 
** does not reveal the CRLF terminations, and the user checks that /bin/ksh 
** does indeed exist. If /bin/ksh^M really does exist as a symlink to 
** curlfish, the user is immediately made aware of the true nature of the 
** problem.
**
** I have also added a fairly distinctive return code so that if scripts that 
** call curlfish are called by methods other than a direct shell invocation,
** that fact can be tested for and the error handled gracefully.
** 
*/
#include <stdio.h>
int main (void)
{
    printf ("\n\nYour script contains DOS-style line endings\nPlease remedy the situation and try again\n\n");
    return 29;
}