libexplain/dirfd_or_die.c File Reference

#include <libexplain/ac/dirent.h>
#include <libexplain/ac/errno.h>
#include <libexplain/dirfd.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
int	explain_dirfd_on_error (DIR *dir)
int	explain_dirfd_or_die (DIR *dir)

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Function Documentation

int explain_dirfd_on_error

(

DIR *

dir

)

The explain_dirfd_on_error function is used to call the dirfd(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_dirfd(3) function.

Parameters:

dir	The dir, exactly as to be passed to the dirfd(3) system call.

Returns:

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

Example:

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

 int result = explain_dirfd_on_error(dir);
 if (result < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Definition at line 27 of file dirfd_or_die.c.

int explain_dirfd_or_die

(

DIR *

dir

)

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

Parameters:

dir	The dir, exactly as to be passed to the dirfd(3) system call.

Returns:

This function only returns on success, see dirfd(3) 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:

 int result = explain_dirfd_or_die(dir);

Definition at line 50 of file dirfd_or_die.c.