Kernel+LibC: Switch isatty() to use a fcntl()

We would want it to work with only stdio pledged.
Author: https://github.com/bugaevc Commit: 7541122206 Pull-request: https://github.com/SerenityOS/serenity/pull/2299 Reviewed-by: https://github.com/awesomekling
2025-09-02 15:46:33 +00:00 · 2020-05-19 20:34:45 +03:00 · 2020-05-19 20:34:45 +03:00 · 7541122206 · 2024-07-19 06:22:57 +09:00
commit 7541122206
parent f9cffda0e0
4 changed files with 5 additions and 2 deletions
--- a/Kernel/UnixTypes.h
+++ b/Kernel/UnixTypes.h
@ -74,6 +74,7 @@
 #define F_SETFD 2
 #define F_GETFL 3
 #define F_SETFL 4
+#define F_ISTTY 5

 #define FD_CLOEXEC 1