chore: fix almost *ALL* warnings.

[lunaix-os.git] / lunaix-os / uprog / init.c

diff --git a/lunaix-os/uprog/init.c b/lunaix-os/uprog/init.c
index a1972452ebf614e287556a9596d205664813b9b9..b78cd3b360c293a055fbb4db217da3ff2eacfb29 100644 (file)
--- a/lunaix-os/uprog/init.c
+++ b/lunaix-os/uprog/init.c
@@ -1,23 +1,39 @@
+#include <errno.h>
 #include <fcntl.h>
+#include <stdio.h>
 #include <sys/lunaix.h>
 #include <unistd.h>
 
 int
 main(int argc, const char** argv)
 {
-    int errno = 0;
+    int err = 0;
 
-    if ((errno = open("/dev/tty", 0))) {
+    if ((err = open("/dev/tty", 0)) < 0) {
         syslog(2, "fail to open tty (%d)\n", errno);
         return 0;
     }
 
-    if ((errno = dup(errno))) {
+    if ((err = dup(err)) < 0) {
         syslog(2, "fail to setup tty i/o (%d)\n", errno);
         return 0;
     }
 
-    syslog(0, "user space!\n");
+    printf("(%p) user space!\n", (void*)main);
+
+    if ((err = symlink("/usr", "/mnt/lunaix-os/usr"))) {
+        syslog(2, "symlink /usr:/mnt/lunaix-os/usr (%d)\n", errno);
+        return 0;
+    }
+
+    pid_t pid;
+    if (!(pid = fork())) {
+        err = execve("/usr/sh", NULL, NULL);
+        printf("fail to execute (%d)\n", errno);
+        _exit(err);
+    }
+
+    waitpid(pid, NULL, 0);
 
     return 0;
 }
\ No newline at end of file