services: herdd: getdents test

services/herdd/main.c

@@ -3,6 +3,9 @@
 #include <pthread.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/remote.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 static void *thread_func(void *arg)
 {
@@ -13,6 +16,8 @@ static void *thread_func(void *arg)
 
 int main(int argc, const char *argv[], const char *envp[])
 {
+	sys_remote_set(SYS_REMOTE_NSD, 0, 0);
+
 	kern_logf("herdd");
 	kern_logf("args:");
 
@@ -29,6 +34,28 @@ int main(int argc, const char *argv[], const char *envp[])
 	kern_logf("self = %p", pthread_self());
 	errno = 200;
 
+#if 1
+	int dir = open("/", 0);
+	if (dir >= 0) {
+		kern_logf("opened '/'");
+		char buf[4096] = {0};
+		struct dentry *dent = (struct dentry *)buf;
+		long len = getdents(dir, dent, sizeof buf);
+		if (len < 0) {
+			kern_logf("getdents failed (%s)", strerror(errno));
+		} else {
+			for (long i = 0; i < len;) {
+				dent = (struct dentry *)(buf + i);
+				kern_logf(" - %s", dent->d_name);
+				i += dent->d_reclen;
+			}
+		}
+		close(dir);
+	} else {
+		kern_logf("open() failed: %s", strerror(errno));
+	}
+#endif
+
 	pthread_t thread;
 	pthread_create(&thread, NULL, thread_func, (void *)0xdeafcafe);
 	kern_logf("started thread %p", thread);
@@ -36,8 +63,5 @@ int main(int argc, const char *argv[], const char *envp[])
 	pthread_join(thread, &ret);
 	kern_logf("thread returned %p", ret);
 
-	kern_logf("errno...");
-	kern_logf("%u", errno);
-	kern_logf("...errno");
 	return 0;
 }