1 files changed, 171 insertions, 0 deletions
diff --git a/server/mpm/winnt/nt_eventlog.c b/server/mpm/winnt/nt_eventlog.c
new file mode 100644
index 0000000..e7e80d0
--- /dev/null
+++ b/server/mpm/winnt/nt_eventlog.c
@@ -0,0 +1,171 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "httpd.h"
+#include "http_log.h"
+#include "mpm_winnt.h"
+#include "apr_strings.h"
+#include "apr_lib.h"
+#include "apr_portable.h"
+#include "ap_regkey.h"
+
+static const char *display_name  = NULL;
+static HANDLE stderr_thread = NULL;
+static HANDLE stderr_ready;
+
+static DWORD WINAPI service_stderr_thread(LPVOID hPipe)
+{
+    HANDLE hPipeRead = (HANDLE) hPipe;
+    HANDLE hEventSource;
+    char errbuf[256];
+    char *errmsg = errbuf;
+    const char *errarg[9];
+    DWORD errres;
+    ap_regkey_t *regkey;
+    apr_status_t rv;
+    apr_pool_t *p;
+
+    apr_pool_create_ex(&p, NULL, NULL, NULL);
+
+    errarg[0] = "The Apache service named";
+    errarg[1] = display_name;
+    errarg[2] = "reported the following error:\r\n>>>";
+    errarg[3] = errbuf;
+    errarg[4] = NULL;
+    errarg[5] = NULL;
+    errarg[6] = NULL;
+    errarg[7] = NULL;
+    errarg[8] = NULL;
+
+    /* What are we going to do in here, bail on the user?  not. */
+    if ((rv = ap_regkey_open(&regkey, AP_REGKEY_LOCAL_MACHINE,
+                             "SYSTEM\\CurrentControlSet\\Services\\"
+                             "EventLog\\Application\\Apache Service",
+                             APR_READ | APR_WRITE | APR_CREATE, p))
+            == APR_SUCCESS)
+    {
+        DWORD dwData = EVENTLOG_ERROR_TYPE | EVENTLOG_WARNING_TYPE |
+                       EVENTLOG_INFORMATION_TYPE;
+
+        /* The stock message file */
+        ap_regkey_value_set(regkey, "EventMessageFile",
+                            "%SystemRoot%\\System32\\netmsg.dll",
+                            AP_REGKEY_EXPAND, p);
+
+        ap_regkey_value_raw_set(regkey, "TypesSupported", &dwData,
+                                sizeof(dwData), REG_DWORD, p);
+        ap_regkey_close(regkey);
+    }
+
+    hEventSource = RegisterEventSourceW(NULL, L"Apache Service");
+
+    SetEvent(stderr_ready);
+
+    while (ReadFile(hPipeRead, errmsg, 1, &errres, NULL) && (errres == 1))
+    {
+        if ((errmsg > errbuf) || !apr_isspace(*errmsg))
+        {
+            ++errmsg;
+            if ((*(errmsg - 1) == '\n')
+                    || (errmsg >= errbuf + sizeof(errbuf) - 1))
+            {
+                while ((errmsg > errbuf) && apr_isspace(*(errmsg - 1))) {
+                    --errmsg;
+                }
+                *errmsg = '\0';
+
+                /* Generic message: '%1 %2 %3 %4 %5 %6 %7 %8 %9'
+                 * The event code in netmsg.dll is 3299
+                 */
+                ReportEvent(hEventSource, EVENTLOG_ERROR_TYPE, 0,
+                            3299, NULL, 9, 0, errarg, NULL);
+                errmsg = errbuf;
+            }
+        }
+    }
+
+    if ((errres = GetLastError()) != ERROR_BROKEN_PIPE) {
+        apr_snprintf(errbuf, sizeof(errbuf),
+                     "Win32 error %lu reading stderr pipe stream\r\n",
+                     GetLastError());
+
+        ReportEvent(hEventSource, EVENTLOG_ERROR_TYPE, 0,
+                    3299, NULL, 9, 0, errarg, NULL);
+    }
+
+    CloseHandle(hPipeRead);
+    DeregisterEventSource(hEventSource);
+    CloseHandle(stderr_thread);
+    stderr_thread = NULL;
+    apr_pool_destroy(p);
+    return 0;
+}
+
+
+void mpm_nt_eventlog_stderr_flush(void)
+{
+    HANDLE cleanup_thread = stderr_thread;
+
+    if (cleanup_thread) {
+        HANDLE hErr = GetStdHandle(STD_ERROR_HANDLE);
+        fclose(stderr);
+        CloseHandle(hErr);
+        WaitForSingleObject(cleanup_thread, 30000);
+        CloseHandle(cleanup_thread);
+    }
+}
+
+
+void mpm_nt_eventlog_stderr_open(const char *argv0, apr_pool_t *p)
+{
+    SECURITY_ATTRIBUTES sa;
+    HANDLE hPipeRead = NULL;
+    HANDLE hPipeWrite = NULL;
+    DWORD  threadid;
+    apr_file_t *eventlog_file;
+    apr_file_t *stderr_file;
+
+    display_name = argv0;
+
+    /* Create a pipe to send stderr messages to the system error log.
+     *
+     * _dup2() duplicates the write handle inheritable for us.
+     */
+    sa.nLength = sizeof(sa);
+    sa.lpSecurityDescriptor = NULL;
+    sa.bInheritHandle = FALSE;
+    CreatePipe(&hPipeRead, &hPipeWrite, NULL, 0);
+    ap_assert(hPipeRead && hPipeWrite);
+
+    stderr_ready = CreateEvent(NULL, FALSE, FALSE, NULL);
+    stderr_thread = CreateThread(NULL, 65536, service_stderr_thread,
+                                 (LPVOID)hPipeRead, stack_res_flag, &threadid);
+    ap_assert(stderr_ready && stderr_thread);
+
+    WaitForSingleObject(stderr_ready, INFINITE);
+
+    if ((apr_file_open_stderr(&stderr_file, p)
+             == APR_SUCCESS)
+     && (apr_os_file_put(&eventlog_file, &hPipeWrite, APR_WRITE, p)
+             == APR_SUCCESS))
+        apr_file_dup2(stderr_file, eventlog_file, p);
+
+    /* The code above _will_ corrupt the StdHandle...
+     * and we must do so anyways.  We set this up only
+     * after we initialized the posix stderr API.
+     */
+    ap_open_stderr_log(p);
+}