Fix a -Wsign-compare warning

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2940)

diff --git a/apps/s_client.c b/apps/s_client.c
index e180772e7f78d65b6ed483cbf2cc6ac6c2da5c34..67e9a925726ec89aa035c7f11af747a15d25dd00 100644 (file)
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -174,7 +174,7 @@ static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
                    psk_key);
         return 0;
     }
-    if (key_len > max_psk_len) {
+    if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
         BIO_printf(bio_err,
                    "psk buffer of callback is too small (%d) for key (%ld)\n",
                    max_psk_len, key_len);