From ba755badb5732c13ce463e754086e5f2fa83e24c Mon Sep 17 00:00:00 2001
From: Stefan Lankes <slankes@eonerc.rwth-aachen.de>
Date: Mon, 5 Oct 2015 10:10:45 +0200
Subject: [PATCH] extend example to test the I/O interface

---
 hermit/usr/examples/hello.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/hermit/usr/examples/hello.c b/hermit/usr/examples/hello.c
index c20694fa4..8a2b245b6 100644
--- a/hermit/usr/examples/hello.c
+++ b/hermit/usr/examples/hello.c
@@ -31,9 +31,12 @@
 #include <unistd.h>
 #include <errno.h>
 
+#define N	255
+
 int main(int argc, char** argv)
 {
-	int i;
+	int i, random;
+	FILE* file;
 
 	printf("Hello World!!!\n");
 	for(i=0; environ[i]; i++)
@@ -41,5 +44,15 @@ int main(int argc, char** argv)
 	for(i=0; i<argc; i++)
 		printf("argv[%d] = %s\n", i, argv[i]);
 
+	file = fopen("/etc/hostname", "r");
+	if (file)
+	{
+		char fname[N] = "";
+
+		fscanf(file, "%s", fname);
+		printf("Hostname: %s\n", fname);
+		fclose(file);
+	}
+
 	return errno;
 }