wifi_essid: add boundary check && prevent the use of direct string literal as a forma...

diff --git a/slstatus.c b/slstatus.c
index 7b022053fd698e65408ed1d07b3e1086dde35dde..c852b2f2916642c15b4de471b03d5da1c07460ab 100644 (file)
--- a/slstatus.c
+++ b/slstatus.c
@@ -717,7 +717,8 @@ wifi_essid(const char *iface)
 
        memset(&wreq, 0, sizeof(struct iwreq));
        wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
-       sprintf(wreq.ifr_name, iface);
+       snprintf(wreq.ifr_name, ifrn_name, "%s", iface);
+
        if (sockfd == -1) {
                warn("Failed to get ESSID for interface %s", iface);
                return smprintf("%s", UNKNOWN_STR);