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)