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+/* An interface to read() that reads all it is asked to read.
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, read to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stddef.h>
+
+/* Read COUNT bytes at BUF to descriptor FD, retrying if interrupted
+ or if partial reads occur. Return the number of bytes successfully
+ read, setting errno if that is less than COUNT. errno = 0 means EOF. */
+extern size_t full_read (int fd, void *buf, size_t count);