From 17a856577f9db766b8ef7099d0575d378dff5dd1 Mon Sep 17 00:00:00 2001 From: rtm Date: Fri, 11 Aug 2006 13:55:18 +0000 Subject: init creates console, opens 0/1/2, runs sh sh accepts 0-argument commands (like userfs) reads from console --- init.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 init.c (limited to 'init.c') diff --git a/init.c b/init.c new file mode 100644 index 0000000..dcd0fda --- /dev/null +++ b/init.c @@ -0,0 +1,32 @@ +#include "user.h" +#include "types.h" +#include "fs.h" +#include "fcntl.h" + +char *sh_args[] = { "sh", 0 }; + +int +main(void) +{ + int pid; + + if(open("console", 0) < 0){ + mknod("console", T_DEV, 1, 1); + open("console", 0); + } + open("console", 1); + open("console", 1); + + write(1, "init...\n", 8); + + while(1){ + write(1, "running sh...\n", 14); + pid = fork(); + if(pid == 0){ + exec("sh", sh_args); + exit(); + } + if(pid > 0) + wait(); + } +} -- cgit v1.2.3