Propagate my ctype fixes (r8404) from libcharset.

[u/mdw/putty] / charset / mimeenc.c

diff --git a/charset/mimeenc.c b/charset/mimeenc.c
index 437781f..93ad89e 100644 (file)
--- a/charset/mimeenc.c
+++ b/charset/mimeenc.c
@@ -202,7 +202,7 @@ int charset_from_mimeenc(const char *name)
        p = name;
        q = mimeencs[i].name;
        while (*p || *q) {
-           if (tolower(*p) != tolower(*q))
+               if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
                break;
            p++; q++;
        }