| explain_setgid_or_die(3) | Library Functions Manual | explain_setgid_or_die(3) |
explain_setgid_or_die - set group identity and report errors
#include <libexplain/setgid.h>
void explain_setgid_or_die(gid_t gid);
int explain_setgid_on_error(gid_t gid);
The explain_setgid_or_die function is used to call the setgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setgid(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_setgid_on_error function is used to call the setgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setgid(3) function, but still returns to the caller.
The explain_setgid_or_die function only returns on success, see setgid(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_setgid_on_error function always returns the value return by the wrapped setgid(2) system call.
The explain_setgid_or_die function is intended to be used in a fashion similar to the following example:
explain_setgid_or_die(gid);
libexplain version 1.4
Copyright (C) 2012 Peter Miller