nl80211: fix possibly unterminated ifname string

[project/iwinfo.git] / iwinfo_nl80211.c

diff --git a/iwinfo_nl80211.c b/iwinfo_nl80211.c
index a08d580..1a1fc69 100644 (file)
--- a/iwinfo_nl80211.c
+++ b/iwinfo_nl80211.c
@@ -604,7 +604,7 @@ static char * nl80211_phy2ifname(const char *ifname)
                                            ((ifidx < 0) || (cifidx < ifidx)))
                                        {
                                                ifidx = cifidx;
-                                               strncpy(nif, e->d_name, sizeof(nif));
+                                               strncpy(nif, e->d_name, sizeof(nif) - 1);
                                        }
                                }
                        }