char *cmd;
HANDLE hExitEvent;
HANDLE hPipeWrite;
-#ifdef CP
- char *pEnvVar;
- char *pEnvBlock;
- int i;
- int iEnvBlockLen;
- int rv;
- char buf[1024];
- STARTUPINFO si; /* Filled in prior to call to CreateProcess */
- PROCESS_INFORMATION pi; /* filled in on call to CreateProcess */
- HANDLE hDup;
- HANDLE hPipeRead;
- HANDLE hNullOutput;
- HANDLE hShareError;
- HANDLE hCurrentProcess = GetCurrentProcess();
- SECURITY_ATTRIBUTES sa;
- sa.nLength = sizeof(sa);
- sa.bInheritHandle = TRUE;
- sa.lpSecurityDescriptor = NULL;
-#else
apr_status_t rv;
apr_procattr_t *attr;
apr_file_t *child_out;
static char **env = NULL;
static char pidbuf[28];
char *cwd;
-#endif
apr_pool_sub_make(&ptemp, p, NULL);
/* Build the command line. Should look something like this:
* C:/apache/bin/apache.exe -f ap_server_confname
* First, get the path to the executable...
*/
-#ifdef CP
- rv = GetModuleFileName(NULL, buf, sizeof(buf));
- if (rv == sizeof(buf)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, ERROR_BAD_PATHNAME, ap_server_conf,
- "Parent: Path to Apache process too long");
- return -1;
- } else if (rv == 0) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
- "Parent: GetModuleFileName() returned NULL for current process.");
- return -1;
- }
-
- /* Build the command line */
- cmd = apr_psprintf(ptemp, "\"%s\"", buf);
- for (i = 1; i < ap_server_conf->process->argc; i++) {
- cmd = apr_pstrcat(ptemp, cmd, " \"", ap_server_conf->process->argv[i], "\"", NULL);
- }
-#else
apr_procattr_create(&attr, ptemp);
apr_procattr_cmdtype_set(attr, APR_PROGRAM);
apr_procattr_detach_set(attr, 1);
else {
cmd = args[0];
}
-#endif
-#ifdef CP
- /* Create a pipe to send socket info to the child */
- if (!CreatePipe(&hPipeRead, &hPipeWrite, &sa, 0)) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
- "Parent: Unable to create pipe to child process.");
- return -1;
- }
-
- /* Make our end of the handle non-inherited */
- if (DuplicateHandle(hCurrentProcess, hPipeWrite, hCurrentProcess,
- &hDup, 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- CloseHandle(hPipeWrite);
- hPipeWrite = hDup;
- }
- else {
- ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
- "Parent: Unable to duplicate pipe to child.\n");
- CloseHandle(hPipeWrite);
- CloseHandle(hPipeRead);
- return -1;
- }
-
- /* Open a null handle to soak info from the child */
- hNullOutput = CreateFile("nul", GENERIC_READ | GENERIC_WRITE,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- &sa, OPEN_EXISTING, 0, NULL);
- if (hNullOutput == INVALID_HANDLE_VALUE) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
- "Parent: Unable to create null output pipe for child process.\n");
- CloseHandle(hPipeWrite);
- CloseHandle(hPipeRead);
- return -1;
- }
-
- /* Child's initial stderr -> our main server error log (or, failing that, stderr) */
- if (ap_server_conf->error_log) { /* Is this check really necessary?*/
- rv = apr_os_file_get(&hShareError, ap_server_conf->error_log);
- if (rv == APR_SUCCESS && hShareError != INVALID_HANDLE_VALUE) {
- if (DuplicateHandle(hCurrentProcess, hShareError,
- hCurrentProcess, &hDup,
- GENERIC_WRITE, TRUE, 0)) {
- hShareError = hDup;
- }
- else {
- rv = apr_get_os_error();
- }
- }
- if (rv != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf,
- "Parent: Unable to share error log with child.\n");
- CloseHandle(hPipeWrite);
- CloseHandle(hPipeRead);
- CloseHandle(hNullOutput);
- return -1;
- }
- else if (hShareError == INVALID_HANDLE_VALUE) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, 0, ap_server_conf,
- "Parent: Failed to share error log with child.\n");
- CloseHandle(hPipeWrite);
- CloseHandle(hPipeRead);
- CloseHandle(hNullOutput);
- return -1;
- }
- }
- else {
- hShareError = GetStdHandle(STD_ERROR_HANDLE);
- }
-#else
/* Create a pipe to send handles to the child */
if ((rv = apr_procattr_io_set(attr, APR_FULL_BLOCK,
APR_NO_PIPE, APR_NO_PIPE)) != APR_SUCCESS) {
apr_pool_destroy(ptemp);
return -1;
}
-#endif
/* Create the child_exit_event */
hExitEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (!hExitEvent) {
ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
"Parent: Could not create exit event for child process");
-#ifdef CP
- CloseHandle(hPipeWrite);
- CloseHandle(hPipeRead);
- CloseHandle(hNullOutput);
- if (GetStdHandle(STD_ERROR_HANDLE) != hShareError) {
- CloseHandle(hShareError);
- }
-#else
apr_pool_destroy(ptemp);
-#endif
return -1;
}
-#ifdef CP
- /*
- * Build the environment
- * Win32's CreateProcess call requires that the environment
- * be passed in an environment block, a null terminated block of
- * null terminated strings.
- */
- _putenv(apr_psprintf(p,"AP_PARENT_PID=%i", parent_pid));
-
- i = 0;
- iEnvBlockLen = 1;
- while (_environ[i]) {
- iEnvBlockLen += strlen(_environ[i]) + 1;
- i++;
- }
- pEnvBlock = (char *)apr_pcalloc(p, iEnvBlockLen);
- pEnvVar = pEnvBlock;
- i = 0;
- while (_environ[i]) {
- strcpy(pEnvVar, _environ[i]);
- pEnvVar = strchr(pEnvVar, '\0') + 1;
- i++;
- }
- pEnvVar = '\0';
-#else
if (!env)
{
/* Build the env array, only once since it won't change
env[envc] = pidbuf;
env[envc + 1] = NULL;
}
-#endif
-#ifdef CP
- /* Give the read end of the pipe (hPipeRead) to the child as stdin. The
- * parent will write the socket data to the child on this pipe.
- */
- memset(&si, 0, sizeof(si));
- memset(&pi, 0, sizeof(pi));
- si.cb = sizeof(si);
- si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
- si.wShowWindow = SW_HIDE;
- si.hStdInput = hPipeRead;
- si.hStdOutput = hNullOutput;
- si.hStdError = hShareError;
-
- rv = CreateProcess(NULL, pCommand, NULL, NULL,
- TRUE, /* Inherit handles */
- 0, /* Creation flags */
- pEnvBlock, /* Environment block */
- NULL,
- &si, &pi);
-
- /* Undo everything created for the child alone
- */
- CloseHandle(pi.hThread);
- CloseHandle(hPipeRead);
- CloseHandle(hNullOutput);
- if (GetStdHandle(STD_ERROR_HANDLE) != hShareError) {
- /* Handles opened with GetStdHandle are psuedo handles
- * and should not be closed else bad things will happen.
- */
- CloseHandle(hShareError);
- }
- _putenv("AP_PARENT_PID=");
-
- if (!rv) {
- ap_log_error(APLOG_MARK, APLOG_CRIT, apr_get_os_error(), ap_server_conf,
- "Parent: Failed to create the child process.");
- CloseHandle(hExitEvent);
- CloseHandle(hPipeWrite);
- CloseHandle(pi.hProcess);
- return -1;
- }
-#else
rv = apr_proc_create(&new_child, cmd, args, env, attr, ptemp);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, ap_server_conf,
CloseHandle(new_child.hproc);
return -1;
}
-#endif
-
-#ifdef CP
- ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf,
- "Parent: Created child process %d", pi.dwProcessId);
-
- if (send_handles_to_child(p, hExitEvent, pi.hProcess, hPipeWrite)) {
- /*
- * This error is fatal, mop up the child and move on
- * We toggle the child's exit event to cause this child
- * to quit even as it is attempting to start.
- */
- SetEvent(hExitEvent);
- CloseHandle(hExitEvent);
- CloseHandle(hPipeWrite);
- CloseHandle(pi.hProcess);
- return -1;
- }
-
- /* Important:
- * Give the child process a chance to run before dup'ing the sockets.
- * We have already set the listening sockets noninheritable, but if
- * WSADuplicateSocket runs before the child process initializes
- * the listeners will be inherited anyway.
- *
- * XXX: This is badness; needs some mutex interlocking
- */
- Sleep(1000);
-
- if (send_listeners_to_child(p, pi.dwProcessId, hPipeWrite)) {
- /*
- * This error is fatal, mop up the child and move on
- * We toggle the child's exit event to cause this child
- * to quit even as it is attempting to start.
- */
- SetEvent(hExitEvent);
- CloseHandle(hExitEvent);
- CloseHandle(hPipeWrite);
- CloseHandle(pi.hProcess);
- return -1;
- }
-
- CloseHandle(hPipeWrite);
- *child_proc = pi.hProcess;
- *child_exit_event = hExitEvent;
- *child_pid = pi.dwProcessId;
-#else
ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, ap_server_conf,
"Parent: Created child process %d", new_child.pid);
*child_exit_event = hExitEvent;
*child_proc = new_child.hproc;
*child_pid = new_child.pid;
-#endif
return 0;
}
projects / apache / commitdiff