1 files changed, 53 insertions, 0 deletions
diff --git a/src/ttyname_r.c b/src/ttyname_r.c
new file mode 100644
index 00000000..44876587
--- /dev/null
+++ b/src/ttyname_r.c
@@ -0,0 +1,53 @@
+/* ttyname_r.c - A ttyname_r() replacement.
+   Copyright (C) 2003, 2004 g10 Code GmbH
+
+   This file is part of GPGME.
+ 
+   GPGME is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+   
+   GPGME is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+
+#warning ttyname is not thread-safe, and ttyname_r is missing
+
+int
+ttyname_r (int fd, char *buf, size_t buflen)
+{
+  char *tty;
+
+#if HAVE_W32_SYSTEM
+  /* We use this default one for now.  AFAICS we only need it to be
+     passed to gpg and in turn to pinentry.  Providing a replacement
+     is needed because elsewhere we bail out on error.  If we
+     eventually implement a pinentry for Windows it is uinlikely that
+     we need a real tty at all.  */
+  tty = "/dev/tty"; 
+#else
+  tty = ttyname (fd);
+  if (!tty)
+    return errno;
+#endif
+  
+  strncpy (buf, tty, buflen);
+  buf[buflen - 1] = '\0';
+  return (strlen (tty) >= buflen) ? ERANGE : 0;
+}