From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Sat, 18 Apr 2015 18:12:19 +0000 (+0100)
Subject: Fix signedness bug in SPA authenticator
X-Git-Tag: exim-4_86_RC1~79
X-Git-Url: https://git.exim.org/exim.git/commitdiff_plain/b8fc75b3728d523ae83d02de92e1cfb002d25c9d?ds=sidebyside

Fix signedness bug in SPA authenticator
---

diff --git a/src/src/auths/auth-spa.c b/src/src/auths/auth-spa.c
index 7ad5a1de8..9abc7b778 100644
--- a/src/src/auths/auth-spa.c
+++ b/src/src/auths/auth-spa.c
@@ -368,7 +368,7 @@ void mdfour (unsigned char *out, unsigned char *in, int n);
 static const char base64digits[] =
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
-#define BAD    -1
+#define BAD    (char) -1
 static const char base64val[] = {
   BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD, BAD,
     BAD,