Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / tools / gen_eth_addr.c

diff --git a/qemu/roms/u-boot/tools/gen_eth_addr.c b/qemu/roms/u-boot/tools/gen_eth_addr.c
new file mode 100644 (file)
index 0000000..bf9d935
--- /dev/null
+++ b/qemu/roms/u-boot/tools/gen_eth_addr.c
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2001
+ * Murray Jensen <Murray.Jensen@cmst.csiro.au>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+int
+main(int argc, char *argv[])
+{
+    unsigned long ethaddr_low, ethaddr_high;
+
+    srand(time(0) | getpid());
+
+    /*
+     * setting the 2nd LSB in the most significant byte of
+     * the address makes it a locally administered ethernet
+     * address
+     */
+    ethaddr_high = (rand() & 0xfeff) | 0x0200;
+    ethaddr_low = rand();
+
+    printf("%02lx:%02lx:%02lx:%02lx:%02lx:%02lx\n",
+       ethaddr_high >> 8, ethaddr_high & 0xff,
+       ethaddr_low >> 24, (ethaddr_low >> 16) & 0xff,
+       (ethaddr_low >> 8) & 0xff, ethaddr_low & 0xff);
+
+    return (0);
+}