Fixed crashes due to use of nested functions.

I have therefore added shared/fileio.c/h to encapsule
buffered file operations, thus making it possible
to re-read the configuration file unlike with the
patch I committed to stable-0-4-4.

See also: http://lists.omnipotent.net/pipermail/lcdproc/2003-December/008413.html

shared/fileio.h

@@ -0,0 +1,40 @@
+/*
+ * fileio.h
+ * This file is part of LCDd, the lcdproc server.
+ *
+ * This file is released under the GNU General Public License. Refer to the
+ * COPYING file distributed with this package.
+ *
+ * Copyright (c) 2003, Rene Wagner
+ *
+ *
+ * Defines routines to read from buffered files.
+ *
+ */
+
+#ifndef FILEIO_H
+#define FILEIO_H
+
+#include <stdio.h>
+
+typedef struct buffile {
+	FILE * f;
+	char * buf;
+	int bytesread, pos;
+} buffile;
+
+buffile *buffile_open( const char *path, const char *mode );
+/* Opens the given file and returns a pointer to the corresponding
+ * buffile object.
+ */
+int buffile_close ( buffile * file );
+/* Tries to close the file corresponding to the given buffile
+ * object and to free the memory used by the buffile object itself.
+ * Returns 0 on success, return value of fclose(3) in case of errors
+ * with fclose.
+ */
+char * buffile_read ( buffile * file, size_t n );
+/* Reads n bytes from the given buffile object.
+ */
+
+#endif