NAME

       explain_setgid_or_die - set group identity and report errors

SYNOPSIS

       #include <libexplain/setgid.h>
       void explain_setgid_or_die(gid_t gid);
       int explain_setgid_on_error(gid_t gid);

DESCRIPTION

       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.

       gid     The gid, exactly as to be passed to the setgid(2) system call.

RETURN VALUE

       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.

EXAMPLE

       The explain_setgid_or_die function is intended to be used in a fashion similar to the following example:
              explain_setgid_or_die(gid);

SEE ALSO

       setgid(2)
               set group identity

       explain_setgid(3)
               explain setgid(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                                        explain_setgid_or_die(3)