NAME

       explain_setregid_or_die - set real and/or effective group ID and report errors

SYNOPSIS

       #include <libexplain/setregid.h>
       void explain_setregid_or_die(gid_t rgid, gid_t egid);
       int explain_setregid_on_error(gid_t rgid, gid_t egid);

DESCRIPTION

       The  explain_setregid_or_die  function  is  used  to  call the setregid(2) system call. On
       failure an explanation will be printed to stderr, obtained  from  the  explain_setregid(3)
       function, and then the process terminates by calling exit(EXIT_FAILURE).

       The  explain_setregid_on_error  function  is  used to call the setregid(2) system call. On
       failure an explanation will be printed to stderr, obtained  from  the  explain_setregid(3)
       function, but still returns to the caller.

       rgid    The rgid, exactly as to be passed to the setregid(2) system call.

       egid    The egid, exactly as to be passed to the setregid(2) system call.

RETURN VALUE

       The  explain_setregid_or_die  function  only  returns on success, see setregid(2) for more
       information. On failure, prints an explanation and exits, it does not return.

       The explain_setregid_on_error function always returns the  value  return  by  the  wrapped
       setregid(2) system call.

EXAMPLE

       The  explain_setregid_or_die  function  is intended to be used in a fashion similar to the
       following example:
              explain_setregid_or_die(rgid, egid);

SEE ALSO

       setregid(2)
               set real and/or effective group ID

       explain_setregid(3)
               explain setregid(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                       explain_setregid_or_die(3)