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42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
22 years ago
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#include "nssm.h"
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/* Convert error code to error string - must call LocalFree() on return value */
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char *error_string(unsigned long error) {
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char *message;
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if (! FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char *) &message, 0, 0)) return 0;
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return message;
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}
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/* Log a message to the Event Log */
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void eventprintf(unsigned short type, char *format, ...) {
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char message[4096];
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char *strings[2];
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int n, size;
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va_list arg;
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/* Construct the message */
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size = sizeof(message);
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va_start(arg, format);
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n = _vsnprintf(message, size, format, arg);
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va_end(arg);
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/* Check success */
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if (n < 0 || n >= size) return;
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/* Construct strings array */
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strings[0] = message;
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strings[1] = 0;
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/* Open event log */
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HANDLE handle = RegisterEventSource(0, TEXT(NSSM));
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if (! handle) return;
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/* Log it */
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if (! ReportEvent(handle, type, 0, 0, 0, 1, 0, (const char **) strings, 0)) {
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printf("ReportEvent(): %s\n", error_string(GetLastError()));
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}
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/* Close event log */
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DeregisterEventSource(handle);
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}
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