1
/* ttyname_r.c - A ttyname_r() replacement.
2
Copyright (C) 2003, 2004 g10 Code GmbH
4
This file is part of GPGME.
6
GPGME is free software; you can redistribute it and/or modify it
7
under the terms of the GNU Lesser General Public License as
8
published by the Free Software Foundation; either version 2.1 of
9
the License, or (at your option) any later version.
11
GPGME is distributed in the hope that it will be useful, but
12
WITHOUT ANY WARRANTY; without even the implied warranty of
13
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14
Lesser General Public License for more details.
16
You should have received a copy of the GNU Lesser General Public
17
License along with this program; if not, write to the Free Software
18
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
30
#warning ttyname is not thread-safe, and ttyname_r is missing
33
ttyname_r (int fd, char *buf, size_t buflen)
38
/* We use this default one for now. AFAICS we only need it to be
39
passed to gpg and in turn to pinentry. Providing a replacement
40
is needed because elsewhere we bail out on error. If we
41
eventually implement a pinentry for Windows it is uinlikely that
42
we need a real tty at all. */
50
strncpy (buf, tty, buflen);
51
buf[buflen - 1] = '\0';
52
return (strlen (tty) >= buflen) ? ERANGE : 0;