#include "storage.h"
/*
+ * GetSystemPowerStatus function.
+ */
+typedef BOOL (WINAPI *gsps_t)(LPSYSTEM_POWER_STATUS);
+static gsps_t gsps;
+
+/*
* This function is called once, at PuTTY startup, and will do some
* seriously silly things like listing directories and getting disk
* free space and a process snapshot.
HANDLE srch;
WIN32_FIND_DATA finddata;
char winpath[MAX_PATH+3];
+ HMODULE mod;
GetWindowsDirectory(winpath, sizeof(winpath));
strcat(winpath, "\\*");
}
read_random_seed(func);
+
+ gsps = NULL;
+ mod = GetModuleHandle("KERNEL32");
+ if (mod) {
+ gsps = (gsps_t)GetProcAddress(mod, "GetSystemPowerStatus");
+ }
}
void random_save_seed(void) {
GetSystemTimeAdjustment(&adjust[0], &adjust[1], &rubbish);
func(&adjust, sizeof(adjust));
-#ifndef WIN32S_COMPAT
- if (GetSystemPowerStatus(&pwrstat))
- func(&pwrstat, sizeof(pwrstat));
-#endif
+ /*
+ * Call GetSystemPowerStatus if present.
+ */
+ if (gsps) {
+ if (gsps(&pwrstat))
+ func(&pwrstat, sizeof(pwrstat));
+ }
+}
+
+/*
+ * This function is called on a timer, and it will monitor
+ * frequently changing quantities such as the state of physical and
+ * virtual memory, the state of the process's message queue, which
+ * window is in the foreground, which owns the clipboard, etc.
+ */
+void noise_regular(void) {
+ HWND w;
+ DWORD z;
+ POINT pt;
+ MEMORYSTATUS memstat;
+ FILETIME times[4];
+
+ w = GetForegroundWindow(); random_add_noise(&w, sizeof(w));
+ w = GetCapture(); random_add_noise(&w, sizeof(w));
+ w = GetClipboardOwner(); random_add_noise(&w, sizeof(w));
+ z = GetQueueStatus(QS_ALLEVENTS); random_add_noise(&z, sizeof(z));
+
+ GetCursorPos(&pt); random_add_noise(&pt, sizeof(pt));
+
+ GlobalMemoryStatus(&memstat); random_add_noise(&memstat, sizeof(memstat));
+
+ GetThreadTimes(GetCurrentThread(), times, times+1, times+2, times+3);
+ random_add_noise(×, sizeof(times));
+ GetProcessTimes(GetCurrentProcess(), times, times+1, times+2, times+3);
+ random_add_noise(×, sizeof(times));
}
/*