Added small test program that opens and reads a few bytes from

/dev/urandom. It verifies that Haiku's dev/urandom is performance-wise
totally unusable -- it takes several seconds.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23904 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/add-ons/kernel/drivers/Jamfile

@@ -1,3 +1,4 @@
 SubDir HAIKU_TOP src tests add-ons kernel drivers ;
 
+SubInclude HAIKU_TOP src tests add-ons kernel drivers random ;
 SubInclude HAIKU_TOP src tests add-ons kernel drivers tty ;

src/tests/add-ons/kernel/drivers/random/Jamfile

@@ -0,0 +1,3 @@
+SubDir HAIKU_TOP src tests add-ons kernel drivers random ;
+
+SimpleTest random_test : random_test.cpp ;

src/tests/add-ons/kernel/drivers/random/random_test.cpp

@@ -0,0 +1,38 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static const char* kRandomDevice = "/dev/urandom";
+
+
+int
+main()
+{
+	int fd = open(kRandomDevice, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Error: Failed to open \"%s\": %s", kRandomDevice,
+			strerror(errno));
+		exit(1);
+	}
+
+	uint8_t buffer[16];
+	ssize_t bytesRead = read(fd, buffer, sizeof(buffer));
+	if (bytesRead < 0) {
+		fprintf(stderr, "Error: Failed to read from random device: %s",
+			strerror(errno));
+		exit(1);
+	}
+
+	printf("Read %d bytes from random device: ", (int)bytesRead);
+	for (int i = 0; i < bytesRead; i++)
+		printf("%02x", buffer[i]);
+	printf("\n");
+
+	return 0;
+}
+