From 8e933fac9fd068343bb602f13175c8d70a6c5768 Mon Sep 17 00:00:00 2001 From: Jake Mannens Date: Wed, 1 Aug 2018 02:27:57 +1000 Subject: Defined EOF as -1 in stdio.h. Implemented the sprintf() library function in lib/stdio.c which uses the vsprintf() function. Implemented a very primative controlling TTY for each process. This is achieved by a switch in the sys_puts system call which uses the 'ctty' element of the process' task structure to determine an appropriate I/O channel. A negative ctty value doesn't equate to any I/O channel effectively disabling the process' output. Added the sys_ctty system call which allows a process to set it's own ctty value. Removed the sys_rsputs system call. Output to serial is now performed by the process first setting it's ctty value to 1, then invoking sys_puts. --- include/kernel/con.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/kernel/con.h') diff --git a/include/kernel/con.h b/include/kernel/con.h index 9dd9dbe..d28daff 100644 --- a/include/kernel/con.h +++ b/include/kernel/con.h @@ -13,4 +13,6 @@ void con_clear(void); int printk(char*, ...); +int rsputs(char*); + #endif -- cgit v1.3