libexplain/dup2_or_die.c File Reference

#include <libexplain/ac/unistd.h>
#include <libexplain/dup2.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
void	explain_dup2_or_die (int oldfd, int newfd)

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Function Documentation

void explain_dup2_or_die	(	int	oldfd,
		int	newfd
	)

The explain_dup2_or_die function is used to call the dup2(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_dup2(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:

 explain_dup2_or_die(oldfd, newfd);

Parameters:

oldfd	The oldfd, exactly as to be passed to the dup2(2) system call.
newfd	The newfd, exactly as to be passed to the dup2(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 dup2_or_die.c.