Fix compiler warning

diff --git a/src/modules/rlm_eap/types/rlm_eap_mschapv2/rlm_eap_mschapv2.c b/src/modules/rlm_eap/types/rlm_eap_mschapv2/rlm_eap_mschapv2.c
index 8d66745cbae770a6bdc2314f34320ec94ec9387c..2d000e53cb399761ff0fe85a6ca35f539ccd1cee 100644 (file)
--- a/src/modules/rlm_eap/types/rlm_eap_mschapv2/rlm_eap_mschapv2.c
+++ b/src/modules/rlm_eap/types/rlm_eap_mschapv2/rlm_eap_mschapv2.c
@@ -751,7 +751,7 @@ packet_ready:
                         *      issues a re-try, we will know which
                         *      challenge value that they used.
                         */
-                       n = sscanf(response->vp_strvalue, "%*cE=%d R=%d C=%32s", &err, &retry, &buf);
+                       n = sscanf(response->vp_strvalue, "%*cE=%d R=%d C=%32s", &err, &retry, &buf[0]);
                        if (n == 3) {
                                DEBUG2("  Found new challenge from MS-CHAP-Error: err=%d retry=%d challenge=%s", err, retry, buf);
                                fr_hex2bin(buf, data->challenge, 16);