1 files changed, 63 insertions, 0 deletions
diff --git a/src/funopen.c b/src/funopen.c
new file mode 100644
index 00000000..a20dd8a1
--- /dev/null
+++ b/src/funopen.c
@@ -0,0 +1,63 @@
+/* funopen.c - Replacement for funopen.
+   Copyright (C) 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.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+
+
+/* Replacement for the *BSD function:
+
+  FILE *funopen (void *cookie,
+                 int (*readfn)(void *, char *, int),
+                 int (*writefn)(void *, const char *, int),
+                 fpos_t (*seekfn)(void *, fpos_t, int),
+                 int (*closefn)(void *));
+
+  The functions to provide my either be NULL if not required or
+  similar to the unistd function with the exception of using the
+  cookie instead of the fiel descripor.
+*/
+
+
+#ifdef HAVE_FOPENCOOKIE
+FILE *
+_gpgme_funopen(void *cookie,
+                cookie_read_function_t *readfn,
+                cookie_write_function_t *writefn,
+                cookie_seek_function_t *seekfn,
+                cookie_close_function_t *closefn)
+{
+  cookie_io_functions_t io = { NULL };
+
+  io.read = readfn;
+  io.write = writefn;
+  io.seek = seekfn;
+  io.close = closefn;
+
+  return fopencookie (cookie,
+		      readfn ? ( writefn ? "rw" : "r" )
+		      : ( writefn ? "w" : ""), io);
+}
+#else
+#error No known way to implement funopen.
+#endif