From b10dcfd58930dbef7c6c6aac372a28a3cf4035d5 Mon Sep 17 00:00:00 2001
From: Howe829 <lonely829@gmail.com>
Date: Thu, 16 Nov 2023 15:21:45 +0800
Subject: [PATCH] Ignore up arrow key

---
 smallchat-client.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/smallchat-client.c b/smallchat-client.c
index e20b133..0b73f99 100644
--- a/smallchat-client.c
+++ b/smallchat-client.c
@@ -237,6 +237,11 @@ int main(int argc, char **argv) {
             } else if (FD_ISSET(stdin_fd, &readfds)) {
                 /* Data from the user typing on the terminal? */
                 ssize_t count = read(stdin_fd,buf,sizeof(buf));
+                /* Ignore up arrow otherwise horrible things happen. */
+                if(count == 3 && 
+                   buf[0] == 27 && buf[1] == 91 && buf[2] == 65){
+                    continue;
+                }
                 for (int j = 0; j < count; j++) {
                     int res = inputBufferFeedChar(&ib,buf[j]);
                     switch(res) {