X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=src%2Fsrc%2Fbase64.c;h=e63522ec4d5bc4a002bc8ca84fcd40a63339ddc4;hb=56cc2ec0010e6c917a8f1ba285c86e6dadb6f0d3;hp=dbbd6a40e0cdf6e91dfc1cf9e60bcb2a8e9a5d4c;hpb=f9ba5e2255cf18092750fffacb6a9603571a2be5;p=exim.git

diff --git a/src/src/base64.c b/src/src/base64.c
index dbbd6a40e..e63522ec4 100644
--- a/src/src/base64.c
+++ b/src/src/base64.c
@@ -173,7 +173,7 @@ while ((x = *code++) != 0)
 
   while (isspace(y = *code++)) ;
   /* debug_printf("b64d: '%c'\n", y); */
-  if (y == 0 || (y = dec64table[y]) == 255)
+  if (y > 127 || (y = dec64table[y]) == 255)
     return -1;
 
   *result++ = (x << 2) | (y >> 4);