herdd: replace task_duplicate test with fork test

services/herdd/main.c

@@ -2,6 +2,7 @@
 #include "queue.h"
 #include "runlevel.h"
 #include "service.h"
+#include "spawn.h"
 
 #include <dirent.h>
 #include <errno.h>
@@ -111,19 +112,15 @@ int main(int argc, const char *argv[], const char *envp[])
 	}
 
 	runlevel_activate(rl);
+#if 1
+	pid_t child = fork();
+	kern_logf("  fork returned %d", child);
 
-	kern_handle_t new_task = 123, new_space = 456;
-	kern_status_t status = task_duplicate(&new_task, &new_space);
-	kern_logf(
-		"  task_duplicate returned %d (%x/%x)",
-		status,
-		new_task,
-		new_space);
-
-	if (new_task == KERN_HANDLE_INVALID) {
+	if (child == 0) {
 		kern_log("this is the child");
 		long r = printf("hello\n");
 		kern_logf("printf returned %ld (%d)", r, (errno));
+		execlp(NULL, NULL);
 	} else {
 		kern_log("this is the parent");
 		long r = printf("goodbye\n");
@@ -131,5 +128,6 @@ int main(int argc, const char *argv[], const char *envp[])
 	}
 
 	kern_logf("exiting (%s)", strerror(EFTYPE));
+#endif
 	return 0;
 }