wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/utils/uuid.c b/src/utils/uuid.c
new file mode 100644
index 0000000..d8cc267
--- /dev/null
+++ b/src/utils/uuid.c
@@ -0,0 +1,77 @@
+/*
+ * Universally Unique IDentifier (UUID)
+ * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "uuid.h"
+
+int uuid_str2bin(const char *str, u8 *bin)
+{
+ const char *pos;
+ u8 *opos;
+
+ pos = str;
+ opos = bin;
+
+ if (hexstr2bin(pos, opos, 4))
+ return -1;
+ pos += 8;
+ opos += 4;
+
+ if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+ return -1;
+ pos += 4;
+ opos += 2;
+
+ if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+ return -1;
+ pos += 4;
+ opos += 2;
+
+ if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+ return -1;
+ pos += 4;
+ opos += 2;
+
+ if (*pos++ != '-' || hexstr2bin(pos, opos, 6))
+ return -1;
+
+ return 0;
+}
+
+
+int uuid_bin2str(const u8 *bin, char *str, size_t max_len)
+{
+ int len;
+ len = os_snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
+ "%02x%02x-%02x%02x%02x%02x%02x%02x",
+ bin[0], bin[1], bin[2], bin[3],
+ bin[4], bin[5], bin[6], bin[7],
+ bin[8], bin[9], bin[10], bin[11],
+ bin[12], bin[13], bin[14], bin[15]);
+ if (len < 0 || (size_t) len >= max_len)
+ return -1;
+ return 0;
+}
+
+
+int is_nil_uuid(const u8 *uuid)
+{
+ int i;
+ for (i = 0; i < UUID_LEN; i++)
+ if (uuid[i])
+ return 0;
+ return 1;
+}