wireless: consolidate on a single escape_essid implementation
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/lib80211.h b/include/net/lib80211.h
new file mode 100644
index 0000000..91a64f3
--- /dev/null
+++ b/include/net/lib80211.h
@@ -0,0 +1,31 @@
+/*
+ * lib80211.h -- common bits for IEEE802.11 wireless drivers
+ *
+ * Copyright (c) 2008, John W. Linville <linville@tuxdriver.com>
+ *
+ */
+
+#ifndef LIB80211_H
+#define LIB80211_H
+
+/* escape_ssid() is intended to be used in debug (and possibly error)
+ * messages. It should never be used for passing ssid to user space. */
+const char *escape_ssid(const char *ssid, u8 ssid_len);
+
+static inline int is_empty_ssid(const char *ssid, int ssid_len)
+{
+ /* Single white space is for Linksys APs */
+ if (ssid_len == 1 && ssid[0] == ' ')
+ return 1;
+
+ /* Otherwise, if the entire ssid is 0, we assume it is hidden */
+ while (ssid_len) {
+ ssid_len--;
+ if (ssid[ssid_len] != '\0')
+ return 0;
+ }
+
+ return 1;
+}
+
+#endif /* LIB80211_H */