command.c: don't print "unknown command" for empty commands
Change-Id: If8512a705e464a9cae949e6278a8d69eb7833737
diff --git a/sysmoOCTSIM/command.c b/sysmoOCTSIM/command.c
index 3210b27..b0949f3 100644
--- a/sysmoOCTSIM/command.c
+++ b/sysmoOCTSIM/command.c
@@ -85,15 +85,19 @@
int c = getchar();
if (c < 0)
return;
- putchar(c);
if (c == '\r' || c == '\n' || g_cmds.buf_idx >= sizeof(g_cmds.buf)-1) {
+ /* skip empty commands */
+ if (g_cmds.buf_idx == 0)
+ return;
cmd_execute();
cmd_buf_reset();
printf(g_cmds.prompt);
return;
+ } else {
+ /* print + append character */
+ putchar(c);
+ cmd_buf_append(c);
}
- /* append character */
- cmd_buf_append(c);
i++;
}