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 0.52
Copyright (C) 2009 Peter Miller