1 files changed, 57 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/include/readline/readline.h b/qemu/roms/ipxe/src/include/readline/readline.h
new file mode 100644
index 000000000..0449a3f98
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/readline/readline.h
@@ -0,0 +1,57 @@
+#ifndef _READLINE_H
+#define _READLINE_H
+
+/** @file
+ *
+ * Minmal readline
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** A readline history entry */
+struct readline_history_entry {
+	/** Persistent copy of string */
+	char *string;
+	/** Temporary copy of string
+	 *
+	 * The temporary copy exists only during the call to
+	 * readline().
+	 */
+	char *temp;
+};
+
+/** Maximum depth of a readline history buffer
+ *
+ * Must be one less than a power of two.
+ */
+#define READLINE_HISTORY_MAX_DEPTH ( ( 1 << 3 ) - 1 )
+
+/** A readline history buffer */
+struct readline_history {
+	/** History entries
+	 *
+	 * This is a circular buffer, with entries in chronological
+	 * order.  The "next" entry is always empty except during a
+	 * call to readline().
+	 */
+	struct readline_history_entry entries[READLINE_HISTORY_MAX_DEPTH + 1];
+	/** Position of next entry within buffer
+	 *
+	 * This is incremented monotonically each time an entry is
+	 * added to the buffer.
+	 */
+	unsigned int next;
+	/** Current depth within history buffer
+	 *
+	 * This is valid only during the call to readline()
+	 */
+	unsigned int depth;
+};
+
+extern void history_free ( struct readline_history *history );
+extern int readline_history ( const char *prompt, const char *prefill,
+			      struct readline_history *history, char **line );
+extern char * __malloc readline ( const char *prompt );
+
+#endif /* _READLINE_H */