explain_setgroups_or_die3
Set supplementary group ids and report errors
Usage
#include <libexplain/setgroups.h>
void explain_setgroups_or_die(size_t data_size, const gid_t *data);
int explain_setgroups_on_error(size_t data_size, const gid_t *data);
Overview
The explain_setgroups_or_die 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, and then the process terminates by calling exit(EXIT_FAILURE).
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, but still returns to the caller.
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. |
Return value
The explain_setgroups_or_die function only returns on success, see setgroups(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_setgroups_on_error function always returns the value return by the wrapped setgroups(2) system call.
Examples
The explain_setgroups_or_die function is intended to be used in a fashion similar to the following example:
explain_setgroups_or_die(data_size, data);Releases
6 releases since Debian 7 (Wheezy); the text changed 1 time.