Am 27.05.2022 um 23:11 schrieb Christopher Schultz:
Rainer,
On 5/27/22 4:45 PM, Rainer Jung wrote:
Hi there,
I suspect there is a ponter deref typo in the source code of the ISAPI
redirector. Suggested patch would be:
diff --git a/native/iis/jk_isapi_plugin.c b/native/iis/jk_isapi_plugin.c
index c0d7a4353..4978a0b85 100644
--- a/native/iis/jk_isapi_plugin.c
+++ b/native/iis/jk_isapi_plugin.c
@@ -1886,7 +1886,7 @@ static DWORD
handle_notify_event(PHTTP_FILTER_CONTEXT pfc,
* that the extension proc will be called.
* This allows the servlet to handle 'Translate: f'.
*/
- if (translate && &translate) {
+ if (translate && *translate) {
if (!pfp->AddHeader(pfc, TOMCAT_TRANSLATE_HEADER_NAME,
translate)) {
jk_log(logger, JK_LOG_ERROR,
"error while adding Tomcat-Translate headers");
I think what was intended was checking, that translate is neither NULL
nor an empty string. The curent check for &translate would check the
address of translate instead of the first character.
WDYT?
I agree with your assessment. I can't imagine ever using "&var" in a
predicate making any sense.
If you are going to change the code, I think you should explicitly
compare against NULL and then also explicitly-compare the character at
"translate" with \0 or your preferred spelling of the NULL-terminator.
That will make it entirely clear what the predicate is doing.
Done.
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