libexplain/setgroups_on_error.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/grp.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/setgroups.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
int	explain_setgroups_on_error (size_t data_size, const gid_t *data)

---

Function Documentation

int explain_setgroups_on_error	(	size_t	data_size,
		const gid_t *	data
	)

The explain_setgroups_on_error function is used to call the setgroups(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setgroups(3) function.

Parameters:

data_size	The data_size, exactly as to be passed to the setgroups(2) system call.
data	The data, exactly as to be passed to the setgroups(2) system call.

Returns:

The value returned by the wrapped setgroups(2) system call.

Example:

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

 if (explain_setgroups_on_error(data_size, data) < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Definition at line 28 of file setgroups_on_error.c.