From 72d6a51e64d75ef9559e230118ce3a41e0b99a18 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 30 May 2014 11:37:35 +0000 Subject: [PATCH] iwinfo: null-terminate the ssid on nl80211 scan to avoid printing trailing garbage Signed-off-by: Felix Fietkau SVN-Revision: 40884 --- package/network/utils/iwinfo/src/iwinfo_nl80211.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/package/network/utils/iwinfo/src/iwinfo_nl80211.c b/package/network/utils/iwinfo/src/iwinfo_nl80211.c index 4d0444a7aa..8e585892d7 100644 --- a/package/network/utils/iwinfo/src/iwinfo_nl80211.c +++ b/package/network/utils/iwinfo/src/iwinfo_nl80211.c @@ -1725,13 +1725,16 @@ static void nl80211_get_scanlist_ie(struct nlattr **bss, int ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); unsigned char *ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); static unsigned char ms_oui[3] = { 0x00, 0x50, 0xf2 }; + int len; while (ielen >= 2 && ielen >= ie[1]) { switch (ie[0]) { case 0: /* SSID */ - memcpy(e->ssid, ie + 2, min(ie[1], IWINFO_ESSID_MAX_SIZE)); + len = min(ie[1], IWINFO_ESSID_MAX_SIZE); + memcpy(e->ssid, ie + 2, len); + e->ssid[len] = 0; break; case 48: /* RSN */