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- #include "nssm.h"
- int create_messages() {
- HKEY key;
- char registry[KEY_LENGTH];
- if (_snprintf(registry, sizeof(registry), "SYSTEM\\CurrentControlSet\\Services\\EventLog\\Application\\%s", NSSM) < 0) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "eventlog registry", "create_messages()", 0);
- return 1;
- }
- if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, 0) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, GetLastError(), 0);
- return 2;
- }
- /* Get path of this program */
- char path[MAX_PATH];
- GetModuleFileName(0, path, MAX_PATH);
- /* Try to register the module but don't worry so much on failure */
- RegSetValueEx(key, "EventMessageFile", 0, REG_SZ, (const unsigned char *) path, strlen(path) + 1);
- unsigned long types = EVENTLOG_INFORMATION_TYPE | EVENTLOG_WARNING_TYPE | EVENTLOG_ERROR_TYPE;
- RegSetValueEx(key, "TypesSupported", 0, REG_DWORD, /*XXX*/(PBYTE) &types, sizeof(types));
- return 0;
- }
- int create_parameters(char *service_name, char *exe, char *flags, char *dir) {
- /* Get registry */
- char registry[KEY_LENGTH];
- if (_snprintf(registry, sizeof(registry), NSSM_REGISTRY, service_name) < 0) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "NSSM_REGISTRY", "create_parameters()", 0);
- return 1;
- }
- /* Try to open the registry */
- HKEY key;
- if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, 0) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, GetLastError(), 0);
- return 2;
- }
- /* Try to create the parameters */
- if (RegSetValueEx(key, NSSM_REG_EXE, 0, REG_EXPAND_SZ, (const unsigned char *) exe, strlen(exe) + 1) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXE, GetLastError(), 0);
- RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
- RegCloseKey(key);
- return 3;
- }
- if (RegSetValueEx(key, NSSM_REG_FLAGS, 0, REG_EXPAND_SZ, (const unsigned char *) flags, strlen(flags) + 1) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_FLAGS, GetLastError(), 0);
- RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
- RegCloseKey(key);
- return 4;
- }
- if (RegSetValueEx(key, NSSM_REG_DIR, 0, REG_EXPAND_SZ, (const unsigned char *) dir, strlen(dir) + 1) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_DIR, GetLastError(), 0);
- RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
- RegCloseKey(key);
- return 5;
- }
- /* Close registry */
- RegCloseKey(key);
- return 0;
- }
- int create_exit_action(char *service_name, const char *action_string) {
- /* Get registry */
- char registry[KEY_LENGTH];
- if (_snprintf(registry, sizeof(registry), NSSM_REGISTRY "\\%s", service_name, NSSM_REG_EXIT) < 0) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "NSSM_REG_EXIT", "create_exit_action()", 0);
- return 1;
- }
- /* Try to open the registry */
- HKEY key;
- unsigned long disposition;
- if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, GetLastError(), 0);
- return 2;
- }
- /* Do nothing if the key already existed */
- if (disposition == REG_OPENED_EXISTING_KEY) {
- RegCloseKey(key);
- return 0;
- }
- /* Create the default value */
- if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, strlen(action_string) + 1) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, GetLastError(), 0);
- RegCloseKey(key);
- return 3;
- }
- /* Close registry */
- RegCloseKey(key);
- return 0;
- }
- int expand_parameter(HKEY key, char *value, char *data, unsigned long datalen) {
- unsigned char *buffer = (unsigned char *) HeapAlloc(GetProcessHeap(), 0, datalen);
- if (! buffer) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, "expand_parameter()", 0);
- return 1;
- }
- unsigned long type = REG_EXPAND_SZ;
- unsigned long buflen = datalen;
- if (RegQueryValueEx(key, value, 0, &type, buffer, &buflen) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, GetLastError(), 0);
- HeapFree(GetProcessHeap(), 0, buffer);
- return 2;
- }
- ZeroMemory(data, datalen);
- /* Technically we shouldn't expand environment strings from REG_SZ values */
- if (type != REG_EXPAND_SZ) {
- memmove(data, buffer, buflen);
- return 0;
- }
- unsigned long ret = ExpandEnvironmentStrings((char *) buffer, data, datalen);
- if (! ret || ret > datalen) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, value, buffer, GetLastError(), 0);
- HeapFree(GetProcessHeap(), 0, buffer);
- return 3;
- }
- HeapFree(GetProcessHeap(), 0, buffer);
- return 0;
- }
- int get_parameters(char *service_name, char *exe, int exelen, char *flags, int flagslen, char *dir, int dirlen) {
- /* Get registry */
- char registry[KEY_LENGTH];
- if (_snprintf(registry, sizeof(registry), NSSM_REGISTRY, service_name) < 0) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "NSSM_REGISTRY", "get_parameters()", 0);
- return 1;
- }
- /* Try to open the registry */
- HKEY key;
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, KEY_READ, &key) != ERROR_SUCCESS) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, GetLastError(), 0);
- return 2;
- }
- /* Try to get executable file - MUST succeed */
- if (expand_parameter(key, NSSM_REG_EXE, exe, exelen)) {
- RegCloseKey(key);
- return 3;
- }
- /* Try to get flags - may fail */
- if (expand_parameter(key, NSSM_REG_FLAGS, flags, flagslen)) {
- RegCloseKey(key);
- return 4;
- }
- /* Try to get startup directory - may fail */
- if (expand_parameter(key, NSSM_REG_DIR, dir, dirlen)) {
- RegCloseKey(key);
- return 5;
- }
- /* Close registry */
- RegCloseKey(key);
- return 0;
- }
- int get_exit_action(char *service_name, unsigned long *ret, unsigned char *action, bool *default_action) {
- /* Are we returning the default action or a status-specific one? */
- *default_action = ! ret;
- /* Get registry */
- char registry[KEY_LENGTH];
- if (_snprintf(registry, sizeof(registry), NSSM_REGISTRY "\\%s", service_name, NSSM_REG_EXIT) < 0) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "NSSM_REG_EXIT", "get_exit_action()", 0);
- return 1;
- }
- /* Try to open the registry */
- HKEY key;
- long error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, KEY_READ, &key);
- if (error != ERROR_SUCCESS && error != ERROR_FILE_NOT_FOUND) {
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, GetLastError(), 0);
- return 2;
- }
- unsigned long type = REG_SZ;
- unsigned long action_len = ACTION_LEN;
- char code[64];
- if (! ret) code[0] = '\0';
- else if (_snprintf(code, sizeof(code), "%lu", *ret) < 0) {
- RegCloseKey(key);
- return get_exit_action(service_name, 0, action, default_action);
- }
- if (RegQueryValueEx(key, code, 0, &type, action, &action_len) != ERROR_SUCCESS) {
- RegCloseKey(key);
- /* Try again with * as the key if an exit code was defined */
- if (ret) return get_exit_action(service_name, 0, action, default_action);
- return 0;
- }
- /* Close registry */
- RegCloseKey(key);
- return 0;
- }
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