fix potential overflow (although very unlikely)

h2o · May 12, 2010 · cf58019 · cf58019
1 parent 5a33123
commit cf58019
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/picohttpparser.c b/picohttpparser.c
@@ -44,7 +44,7 @@ static const char* get_token_to_eol(const char* buf, const char* buf_end,
   const char* token_start = buf;
 
   while (1) {
-    if (likely(buf + 16 < buf_end)) {
+    if (likely(buf_end - buf >= 16)) {
       unsigned i;
       for (i = 0; i < 16; i++, ++buf) {
 	if (unlikely((unsigned char)*buf <= '\r')