From f0950acc07b46f74ea5a54bbe50f081072fc2a68 Mon Sep 17 00:00:00 2001 From: Steve Holme Date: Wed, 17 Apr 2019 23:06:05 +0100 Subject: [PATCH] vauth/cleartext: Don't send the authzid if it is empty Follow up to 762a292f. --- lib/vauth/cleartext.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/vauth/cleartext.c b/lib/vauth/cleartext.c index 0017d5836..8f972e31c 100644 --- a/lib/vauth/cleartext.c +++ b/lib/vauth/cleartext.c @@ -73,7 +73,7 @@ CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, *outlen = 0; *outptr = NULL; - zlen = strlen(authzid); + zlen = (authzid == NULL ? 0 : strlen(authzid)); clen = strlen(authcid); plen = strlen(passwd); @@ -87,7 +87,8 @@ CURLcode Curl_auth_create_plain_message(struct Curl_easy *data, return CURLE_OUT_OF_MEMORY; /* Calculate the reply */ - memcpy(plainauth, authzid, zlen); + if(zlen != 0) + memcpy(plainauth, authzid, zlen); plainauth[zlen] = '\0'; memcpy(plainauth + zlen + 1, authcid, clen); plainauth[zlen + clen + 1] = '\0';