ext/curl: Protocol should be a case insensitive check (php#11052)

Minor drive-by refactoring to use the new API

Author: Girgias

ext/curl/interface.c

@@ -105,7 +105,7 @@ static ZEND_ATTRIBUTE_UNUSED unsigned long php_curl_ssl_id(void)
 
 static zend_result php_curl_option_str(php_curl *ch, zend_long option, const char *str, const size_t len)
 {
-	if (strlen(str) != len) {
+	if (zend_char_has_nul_byte(str, len)) {
 		zend_value_error("%s(): cURL option must not contain any null bytes", get_active_function_name());
 		return FAILURE;
 	}
@@ -116,25 +116,29 @@ static zend_result php_curl_option_str(php_curl *ch, zend_long option, const cha
 	return error == CURLE_OK ? SUCCESS : FAILURE;
 }
 
-static zend_result php_curl_option_url(php_curl *ch, const char *url, const size_t len) /* {{{ */
+static zend_result php_curl_option_url(php_curl *ch, const zend_string *url) /* {{{ */
 {
 	/* Disable file:// if open_basedir are used */
 	if (PG(open_basedir) && *PG(open_basedir)) {
 		curl_easy_setopt(ch->cp, CURLOPT_PROTOCOLS, CURLPROTO_ALL & ~CURLPROTO_FILE);
 	}
 
 #if LIBCURL_VERSION_NUM > 0x073800 && defined(PHP_WIN32)
-	if (len > sizeof("file://") - 1 && '/' != url[sizeof("file://") - 1] && !strncmp("file://", url, sizeof("file://") - 1) && len < MAXPATHLEN - 2) {
+	if (
+		zend_string_starts_with_literal_ci(url, "file://")
+		&& '/' != ZSTR_VAL(url)[sizeof("file://") - 1]
+		&& ZSTR_LEN(url) < MAXPATHLEN - 2
+	) {
 		char _tmp[MAXPATHLEN] = {0};
 
 		memmove(_tmp, "file:///", sizeof("file:///") - 1);
-		memmove(_tmp + sizeof("file:///") - 1, url + sizeof("file://") - 1, len - sizeof("file://") + 1);
+		memmove(_tmp + sizeof("file:///") - 1, ZSTR_VAL(url) + sizeof("file://") - 1, ZSTR_LEN(url) - sizeof("file://") + 1);
 
-		return php_curl_option_str(ch, CURLOPT_URL, _tmp, len + 1);
+		return php_curl_option_str(ch, CURLOPT_URL, _tmp, ZSTR_LEN(url) + 1);
 	}
 #endif
 
-	return php_curl_option_str(ch, CURLOPT_URL, url, len);
+	return php_curl_option_str(ch, CURLOPT_URL, ZSTR_VAL(url), ZSTR_LEN(url));
 }
 /* }}} */
 
@@ -1143,7 +1147,7 @@ PHP_FUNCTION(curl_init)
 	_php_curl_set_default_options(ch);
 
 	if (url) {
-		if (php_curl_option_url(ch, ZSTR_VAL(url), ZSTR_LEN(url)) == FAILURE) {
+		if (php_curl_option_url(ch, url) == FAILURE) {
 			zval_ptr_dtor(return_value);
 			RETURN_FALSE;
 		}
@@ -1952,7 +1956,7 @@ static zend_result _php_curl_setopt(php_curl *ch, zend_long option, zval *zvalue
 		{
 			zend_string *tmp_str;
 			zend_string *str = zval_get_tmp_string(zvalue, &tmp_str);
-			zend_result ret = php_curl_option_url(ch, ZSTR_VAL(str), ZSTR_LEN(str));
+			zend_result ret = php_curl_option_url(ch, str);
 			zend_tmp_string_release(tmp_str);
 			return ret;
 		}