NAME

       explain_setresgid_or_die - set r/e/s group ID and report errors

SYNOPSIS

       #include <libexplain/setresgid.h>
       void explain_setresgid_or_die(gid_t rgid, gid_t egid, gid_t sgid);
       int explain_setresgid_on_error(gid_t rgid, gid_t egid, gid_t sgid);

DESCRIPTION

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

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

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

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

       sgid    The sgid, exactly as to be passed to the setresgid(2) system call.

RETURN VALUE

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

       The explain_setresgid_on_error function always returns the  value  return  by  the  wrapped  setresgid(2)
       system call.

EXAMPLE

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

SEE ALSO

       setresgid(2)
               set real, effective and saved group ID

       explain_setresgid(3)
               explain setresgid(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                                     explain_setresgid_or_die(3)