libexplain/fdopen_or_die.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdio.h>
#include <libexplain/fdopen.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
FILE *	explain_fdopen_on_error (int fildes, const char *flags)
FILE *	explain_fdopen_or_die (int fildes, const char *mode)

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Function Documentation

FILE* explain_fdopen_on_error	(	int	fildes,
		const char *	flags
	)

The explain_fdopen_on_error function is used to call the fdopen(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fdopen(3) function.

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

 if (explain_fdopen_on_error(fildes, flags) < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Parameters:

fildes	The fildes, exactly as to be passed to the fdopen(3) system call.
flags	The flags, exactly as to be passed to the fdopen(3) system call.

Returns:

The value returned by the wrapped fdopen(3) system call.

Definition at line 27 of file fdopen_or_die.c.

FILE* explain_fdopen_or_die	(	int	fildes,
		const char *	flags
	)

The explain_fdopen_or_die function is used to call the fdopen(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fdopen(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_fdopen_or_die(fildes, flags);

Parameters:

fildes	The fildes, exactly as to be passed to the fdopen(3) system call.
flags	The flags, exactly as to be passed to the fdopen(3) system call.

Returns:

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

Definition at line 46 of file fdopen_or_die.c.