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explain_ge...ups_or_die(3) Library Functions Manual explain_ge...ups_or_die(3) NAME explain_getgroups_or_die - get supplementary group IDs and report er- rors SYNOPSIS #include <libexplain/getgroups.h> void explain_getgroups_or_die(int data_size, gid_t *data); int explain_getgroups_on_error(int data_size, gid_t *data); DESCRIPTION The explain_getgroups_or_die function is used to call the getgroups(2) system call. On failure an explanation will be printed to stderr, ob- tained from the explain_getgroups(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_getgroups_on_error function is used to call the get- groups(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getgroups(3) function, but still re- turns to the caller. data_size The data_size, exactly as to be passed to the getgroups(2) sys- tem call. data The data, exactly as to be passed to the getgroups(2) system call. RETURN VALUE The explain_getgroups_or_die function only returns on success, see get- groups(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_getgroups_on_error function always returns the value return by the wrapped getgroups(2) system call. EXAMPLE The explain_getgroups_or_die function is intended to be used in a fash- ion similar to the following example: explain_getgroups_or_die(data_size, data); SEE ALSO getgroups(2) get/set list of supplementary group IDs explain_getgroups(3) explain getgroups(2) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2009 Peter Miller explain_ge...ups_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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