1 files changed, 19 insertions, 0 deletions
diff --git a/ext/unicorn_http/ext_help.h b/ext/unicorn_http/ext_help.h
index 19f08c9..5f7c296 100644
--- a/ext/unicorn_http/ext_help.h
+++ b/ext/unicorn_http/ext_help.h
@@ -26,4 +26,23 @@ static inline int str_cstr_eq(VALUE val, const char *ptr, size_t len)
  #define STR_CSTR_EQ(val, const_str) \
    str_cstr_eq(val, const_str, sizeof(const_str) - 1)
  
+/* strcasecmp isn't locale independent */
+static int str_cstr_case_eq(VALUE val, const char *ptr, size_t len)
+{
+  if (RSTRING_LEN(val) == len) {
+    const char *v = RSTRING_PTR(val);
+
+    for (; len--; ++ptr, ++v) {
+      if ((*ptr == *v) || (*v >= 'A' && *v <= 'Z' && (*v | 0x20) == *ptr))
+        continue;
+      return 0;
+    }
+    return 1;
+  }
+  return 0;
+}
+
+#define STR_CSTR_CASE_EQ(val, const_str) \
+  str_cstr_case_eq(val, const_str, sizeof(const_str) - 1)
+
  #endif