libexplain/dup_or_die.c File Reference

#include <libexplain/ac/unistd.h>
#include <libexplain/dup.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
int	explain_dup_or_die (int fildes)

---

Function Documentation

int explain_dup_or_die

(

int

fildes

)

The explain_dup_or_die function is used to call the dup(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_dup(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

 int newfd = explain_dup_or_die(fildes);

Parameters:

fildes

The fildes, exactly as to be passed to the dup(2) system call.

Returns:

This function only returns on success. On failure, prints an explanation and exits, it does not return.

Definition at line 26 of file dup_or_die.c.