explain_setgroups_or_die(3) - Linux man page
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 © 2009 Peter Miller