libexplain/lseek_or_die.c File Reference

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

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Functions
off_t	explain_lseek_or_die (int fildes, off_t offset, int whence)

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Function Documentation

off_t explain_lseek_or_die	(	int	fildes,
		off_t	offset,
		int	whence
	)

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

Parameters:

fildes	The fildes, exactly as to be passed to the lseek(2) system call.
offset	The offset, exactly as to be passed to the lseek(2) system call.
whence	The whence, exactly as to be passed to the lseek(2) system call.

Returns:

This function only returns on success, see lseek(2) for more information. On failure, prints an explanation and exits, it does not return.

Example:

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

 off_t result = explain_lseek_or_die(fildes, offset, whence);

Definition at line 26 of file lseek_or_die.c.