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-rw-r--r--net/ieee80211/ieee80211_module.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c
index e0802b8755a0..553acb2e93d5 100644
--- a/net/ieee80211/ieee80211_module.c
+++ b/net/ieee80211/ieee80211_module.c
@@ -269,5 +269,31 @@ module_exit(ieee80211_exit);
269module_init(ieee80211_init); 269module_init(ieee80211_init);
270#endif 270#endif
271 271
272
273const char *escape_essid(const char *essid, u8 essid_len) {
274 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
275 const char *s = essid;
276 char *d = escaped;
277
278 if (ieee80211_is_empty_essid(essid, essid_len)) {
279 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
280 return escaped;
281 }
282
283 essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
284 while (essid_len--) {
285 if (*s == '\0') {
286 *d++ = '\\';
287 *d++ = '0';
288 s++;
289 } else {
290 *d++ = *s++;
291 }
292 }
293 *d = '\0';
294 return escaped;
295}
296
272EXPORT_SYMBOL(alloc_ieee80211); 297EXPORT_SYMBOL(alloc_ieee80211);
273EXPORT_SYMBOL(free_ieee80211); 298EXPORT_SYMBOL(free_ieee80211);
299EXPORT_SYMBOL(escape_essid);