2007-09-12 Dan Williams <dcbw@redhat.com>

* src/NetworkManagerUtils.c
	  src/NetworkManagerUtils.h
		- (nm_utils_hexstr2bin): new function



git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@2794 4912f4e0-d625-0410-9fb7-b9a5a253dbdc

ChangeLog

@@ -1,3 +1,9 @@
+2007-09-12  Dan Williams  <dcbw@redhat.com>
+
+	* src/NetworkManagerUtils.c
+	  src/NetworkManagerUtils.h
+		- (nm_utils_hexstr2bin): new function
+
 2007-09-11  Dan Williams  <dcbw@redhat.com>
 
 	* src/nm-manager.c

src/NetworkManagerUtils.c

@@ -645,3 +645,56 @@ nm_utils_same_ssid (const GByteArray * ssid1,
 	return memcmp (ssid1->data, ssid2->data, ssid1_len) == 0 ? TRUE : FALSE;
 }
 
+/* From hostap, Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi> */
+
+static int hex2num (char c)
+{
+	if (c >= '0' && c <= '9')
+		return c - '0';
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
+	if (c >= 'A' && c <= 'F')
+		return c - 'A' + 10;
+	return -1;
+}
+
+static int hex2byte (const char *hex)
+{
+	int a, b;
+	a = hex2num(*hex++);
+	if (a < 0)
+		return -1;
+	b = hex2num(*hex++);
+	if (b < 0)
+		return -1;
+	return (a << 4) | b;
+}
+
+char *
+nm_utils_hexstr2bin (const char *hex,
+                     size_t len)
+{
+	size_t       i;
+	int          a;
+	const char * ipos = hex;
+	char *       buf = NULL;
+	char *       opos;
+
+	/* Length must be a multiple of 2 */
+	if ((len % 2) != 0)
+		return NULL;
+
+	opos = buf = g_malloc0 ((len / 2) + 1);
+	for (i = 0; i < len; i += 2) {
+		a = hex2byte (ipos);
+		if (a < 0) {
+			g_free (buf);
+			return NULL;
+		}
+		*opos++ = a;
+		ipos += 2;
+	}
+	return buf;
+}
+
+/* End from hostap */

src/NetworkManagerUtils.h

@@ -113,5 +113,7 @@ gboolean		nm_utils_same_ssid (const GByteArray * ssid1,
                                     const GByteArray * ssid2,
                                     gboolean ignore_trailing_null);
 
+char *          nm_utils_hexstr2bin (const char *hex, size_t len);
+
 #endif