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authorrtm <rtm>2006-08-11 13:55:18 +0000
committerrtm <rtm>2006-08-11 13:55:18 +0000
commit17a856577f9db766b8ef7099d0575d378dff5dd1 (patch)
tree53d0c687d9c9bf83d097a2171c48d04a569c5a61 /init.c
parent5be0039ce9e22f140a29e167526c64c723c5be3c (diff)
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init creates console, opens 0/1/2, runs sh
sh accepts 0-argument commands (like userfs) reads from console
Diffstat (limited to 'init.c')
-rw-r--r--init.c32
1 files changed, 32 insertions, 0 deletions
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();
+ }
+}