commit 5b0d272717ac6a1a2bc382f591a6a0a30ee52774
author aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Fri Mar 13 15:02:28 2009 +0000
committer aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Fri Mar 13 15:02:28 2009 +0000
tree 979fd42ed43c727dd3843b63acf20e14601171f4
parent a770dc7ea6423020d95a0420f57aa5e7c4c96888

monitor: Provide empty command as final history entry (Jan Kiszka)

Provide an empty line as last entry in command line history, just like
bash e.g. does.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6842 c046a42c-6fe2-441c-8c8c-71466251a162

readline.c

diff --git a/readline.c b/readline.c
index 9c4b68b..9c500f1 100644
--- a/readline.c
+++ b/readline.c
@@ -196,12 +196,14 @@
 
 static void readline_down_char(ReadLineState *rs)
 {
-    if (rs->hist_entry == READLINE_MAX_CMDS - 1 || rs->hist_entry == -1)
-	return;
-    if (rs->history[++rs->hist_entry] != NULL) {
+    if (rs->hist_entry == -1)
+        return;
+    if (rs->hist_entry < READLINE_MAX_CMDS - 1 &&
+        rs->history[++rs->hist_entry] != NULL) {
 	pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf),
                 rs->history[rs->hist_entry]);
     } else {
+        rs->cmd_buf[0] = 0;
 	rs->hist_entry = -1;
     }
     rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf);