3 #define NSSM_ERROR_BUFSIZE 65535
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4 unsigned long tls_index;
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6 /* Convert error code to error string - must call LocalFree() on return value */
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7 char *error_string(unsigned long error) {
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8 /* Thread-safe buffer */
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9 char *error_message = (char *) TlsGetValue(tls_index);
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10 if (! error_message) {
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11 error_message = (char *) LocalAlloc(LPTR, NSSM_ERROR_BUFSIZE);
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12 if (! error_message) return "<out of memory for error message>";
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13 TlsSetValue(tls_index, (void *) error_message);
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16 if (! FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char *) error_message, NSSM_ERROR_BUFSIZE, 0)) {
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17 if (_snprintf(error_message, NSSM_ERROR_BUFSIZE, "system error %lu", error) < 0) return 0;
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19 return error_message;
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22 /* Convert message code to format string */
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23 char *message_string(unsigned long error) {
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25 if (! FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_IGNORE_INSERTS, 0, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR) &ret, NSSM_ERROR_BUFSIZE, 0)) {
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26 ret = (char *) HeapAlloc(GetProcessHeap(), 0, 32);
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27 if (_snprintf(ret, NSSM_ERROR_BUFSIZE, "system error %lu", error) < 0) return 0;
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32 /* Log a message to the Event Log */
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33 void log_event(unsigned short type, unsigned long id, ...) {
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39 /* Open event log */
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40 HANDLE handle = RegisterEventSource(0, TEXT(NSSM));
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41 if (! handle) return;
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46 while ((s = va_arg(arg, char *))) strings[count++] = s;
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48 ReportEvent(handle, type, 0, id, 0, count, 0, (const char **) strings, 0);
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50 /* Close event log */
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51 DeregisterEventSource(handle);
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54 /* Log a message to the console */
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55 void print_message(FILE *file, unsigned long id, ...) {
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58 char *format = message_string(id);
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59 if (! format) return;
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62 vfprintf(file, format, arg);
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68 /* Show a GUI dialogue */
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69 int popup_message(unsigned int type, unsigned long id, ...) {
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72 char *format = message_string(id);
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74 return MessageBox(0, "Message %lu was supposed to go here!", NSSM, MB_OK | MB_ICONEXCLAMATION);
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79 if (vsnprintf(blurb, sizeof(blurb), format, arg) < 0) {
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82 return MessageBox(0, "Message %lu was supposed to go here!", NSSM, MB_OK | MB_ICONEXCLAMATION);
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86 int ret = MessageBox(0, blurb, NSSM, type);
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