libexplain/opendir_on_error.c File Reference

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

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Functions
DIR *	explain_opendir_on_error (const char *pathname)

---

Function Documentation

DIR* explain_opendir_on_error

(

const char *

pathname

)

The explain_opendir_on_error function is used to call the opendir(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_opendir(3) function.

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

 DIR *dir = explain_opendir_on_error(pathname);
 if (!dir)
 {
     ...cope with error
     ...no need to print error message
 }

Parameters:

pathname

The pathname, exactly as to be passed to the opendir(3) system call.

Returns:

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

Definition at line 27 of file opendir_on_error.c.