SIMPLE SOLUTIONS

EXPLAIN_SETGROUPS_OR_DIE - reference manual online

Set supplementary group IDs and report errors.

Chapter
explain_setgroups_or_die(3)          Library Functions Manual         explain_setgroups_or_die(3)

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
explain_setgroups_or_die(3)
This manual Reference Other manuals
explain_setgroups_or_die(3) referred by explain(3) | explain_setgroups(3)
refer to _exit(2) | explain_setgroups(3) | getgroups(2)