Fix malformed utf8 in regexec.c

diff --git a/regexec.c b/regexec.c
index f959121..94d6761 100644 (file)
--- a/regexec.c
+++ b/regexec.c
@@ -5771,7 +5771,14 @@ S_reginclass(pTHX_ const regexp *prog, register const regnode *n, register const
            SV * const sw = regclass_swash(prog, n, TRUE, 0, (SV**)&av);
        
            if (sw) {
-               if (swash_fetch(sw, p, do_utf8))
+               U8 * utf8_p;
+               if (do_utf8) {
+                   utf8_p = (U8 *) p;
+               } else {
+                   STRLEN len = 1;
+                   utf8_p = bytes_to_utf8(p, &len);
+               }
+               if (swash_fetch(sw, utf8_p, 1))
                    match = TRUE;
                else if (flags & ANYOF_FOLD) {
                    if (!match && lenp && av) {
@@ -5780,8 +5787,7 @@ S_reginclass(pTHX_ const regexp *prog, register const regnode *n, register const
                            SV* const sv = *av_fetch(av, i, FALSE);
                            STRLEN len;
                            const char * const s = SvPV_const(sv, len);
-                       
-                           if (len <= plen && memEQ(s, (char*)p, len)) {
+                           if (len <= plen && memEQ(s, (char*)utf8_p, len)) {
                                *lenp = len;
                                match = TRUE;
                                break;
@@ -5790,10 +5796,10 @@ S_reginclass(pTHX_ const regexp *prog, register const regnode *n, register const
                    }
                    if (!match) {
                        U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
-                       STRLEN tmplen;
 
-                       to_utf8_fold(p, tmpbuf, &tmplen);
-                       if (swash_fetch(sw, tmpbuf, do_utf8))
+                       STRLEN tmplen;
+                       to_utf8_fold(utf8_p, tmpbuf, &tmplen);
+                       if (swash_fetch(sw, tmpbuf, 1))
                            match = TRUE;
                    }
                }