Updated to hostap_2_6

[mech_eap.git] / libeap / src / utils / wpabuf.c

diff --git a/libeap/src/utils/wpabuf.c b/libeap/src/utils/wpabuf.c
index 11e7323..96cb25c 100644 (file)
--- a/libeap/src/utils/wpabuf.c
+++ b/libeap/src/utils/wpabuf.c
@@ -310,3 +310,33 @@ void wpabuf_printf(struct wpabuf *buf, char *fmt, ...)
                wpabuf_overflow(buf, res);
        buf->used += res;
 }
+
+
+/**
+ * wpabuf_parse_bin - Parse a null terminated string of binary data to a wpabuf
+ * @buf: Buffer with null terminated string (hexdump) of binary data
+ * Returns: wpabuf or %NULL on failure
+ *
+ * The string len must be a multiple of two and contain only hexadecimal digits.
+ */
+struct wpabuf * wpabuf_parse_bin(const char *buf)
+{
+       size_t len;
+       struct wpabuf *ret;
+
+       len = os_strlen(buf);
+       if (len & 0x01)
+               return NULL;
+       len /= 2;
+
+       ret = wpabuf_alloc(len);
+       if (ret == NULL)
+               return NULL;
+
+       if (hexstr2bin(buf, wpabuf_put(ret, len), len)) {
+               wpabuf_free(ret);
+               return NULL;
+       }
+
+       return ret;
+}