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explain_setgroups_or_die

explain_setgroups_or_die

Section: C Library Functions (3)
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NAME

explain_setgroups_or_die - set supplementary group IDs and report errors  

SYNOPSIS

#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);  

DESCRIPTION

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.  

EXAMPLE

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);
 

SEE ALSO

setgroups(2)
get/set list of supplementary group IDs
explain_setgroups(3)
explain setgroups(2) errors
exit(2)
terminate the calling process
 

COPYRIGHT

libexplain version 0.37
Copyright (C) 2009 Peter Miller


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
SEE ALSO
COPYRIGHT

This document was created by man2html, using the manual pages.
Time: 21:45:51 GMT, April 16, 2011