void RNG_SystemInfoForRNG(void)
{
unsigned long *plong = 0;
PTIB ptib;
PPIB ppib;
APIRET rc = NO_ERROR;
DATETIME dt;
COUNTRYCODE cc = {0};
COUNTRYINFO ci = {0};
unsigned long actual = 0;
char path[_MAX_PATH]="";
char fullpath[_MAX_PATH]="";
unsigned long pathlength = sizeof(path);
FSALLOCATE fsallocate;
FILESTATUS3 fstatus;
unsigned long defaultdrive = 0;
unsigned long logicaldrives = 0;
unsigned long sysInfo[QSV_MAX] = {0};
char buffer[20];
int nBytes = 0;
nBytes = RNG_GetNoise(buffer, sizeof(buffer));
RNG_RandomUpdate(buffer, nBytes);
/* allocate memory and use address and memory */
plong = (unsigned long *)malloc(sizeof(*plong));
RNG_RandomUpdate(&plong, sizeof(plong));
RNG_RandomUpdate(plong, sizeof(*plong));
free(plong);
/* process info */
rc = DosGetInfoBlocks(&ptib, &ppib);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(ptib, sizeof(*ptib));
RNG_RandomUpdate(ppib, sizeof(*ppib));
}
/* time */
rc = DosGetDateTime(&dt);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&dt, sizeof(dt));
}
/* country */
rc = DosQueryCtryInfo(sizeof(ci), &cc, &ci, &actual);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&cc, sizeof(cc));
RNG_RandomUpdate(&ci, sizeof(ci));
RNG_RandomUpdate(&actual, sizeof(actual));
}
/* current directory */
rc = DosQueryCurrentDir(0, path, &pathlength);
strcat(fullpath, "\\");
strcat(fullpath, path);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(fullpath, strlen(fullpath));
// path info
rc = DosQueryPathInfo(fullpath, FIL_STANDARD, &fstatus, sizeof(fstatus));
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&fstatus, sizeof(fstatus));
}
}
/* file system info */
rc = DosQueryFSInfo(0, FSIL_ALLOC, &fsallocate, sizeof(fsallocate));
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&fsallocate, sizeof(fsallocate));
}
/* drive info */
rc = DosQueryCurrentDisk(&defaultdrive, &logicaldrives);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&defaultdrive, sizeof(defaultdrive));
RNG_RandomUpdate(&logicaldrives, sizeof(logicaldrives));
}
/* system info */
rc = DosQuerySysInfo(1L, QSV_MAX, (PVOID)&sysInfo, sizeof(ULONG)*QSV_MAX);
if (rc == NO_ERROR)
{
RNG_RandomUpdate(&sysInfo, sizeof(sysInfo));
}
// now let's do some files
ReadSystemFiles();
/* more noise */
nBytes = RNG_GetNoise(buffer, sizeof(buffer));
RNG_RandomUpdate(buffer, nBytes);
}
void RNG_SystemInfoForRNG(void)
{
DWORD dwVal;
char buffer[256];
int nBytes;
MEMORYSTATUS sMem;
HANDLE hVal;
DWORD dwSerialNum;
DWORD dwComponentLen;
DWORD dwSysFlags;
char volName[128];
DWORD dwSectors, dwBytes, dwFreeClusters, dwNumClusters;
nBytes = RNG_GetNoise(buffer, 20); // get up to 20 bytes
RNG_RandomUpdate(buffer, nBytes);
sMem.dwLength = sizeof(sMem);
GlobalMemoryStatus(&sMem); // assorted memory stats
RNG_RandomUpdate(&sMem, sizeof(sMem));
dwVal = GetLogicalDrives();
RNG_RandomUpdate(&dwVal, sizeof(dwVal)); // bitfields in bits 0-25
dwVal = sizeof(buffer);
if (GetComputerName(buffer, &dwVal))
RNG_RandomUpdate(buffer, dwVal);
hVal = GetCurrentProcess(); // 4 or 8 byte pseudo handle (a
// constant!) of current process
RNG_RandomUpdate(&hVal, sizeof(hVal));
dwVal = GetCurrentProcessId(); // process ID (4 bytes)
RNG_RandomUpdate(&dwVal, sizeof(dwVal));
dwVal = GetCurrentThreadId(); // thread ID (4 bytes)
RNG_RandomUpdate(&dwVal, sizeof(dwVal));
volName[0] = '\0';
buffer[0] = '\0';
GetVolumeInformation(NULL,
volName,
sizeof(volName),
&dwSerialNum,
&dwComponentLen,
&dwSysFlags,
buffer,
sizeof(buffer));
RNG_RandomUpdate(volName, strlen(volName));
RNG_RandomUpdate(&dwSerialNum, sizeof(dwSerialNum));
RNG_RandomUpdate(&dwComponentLen, sizeof(dwComponentLen));
RNG_RandomUpdate(&dwSysFlags, sizeof(dwSysFlags));
RNG_RandomUpdate(buffer, strlen(buffer));
if (GetDiskFreeSpace(NULL, &dwSectors, &dwBytes, &dwFreeClusters,
&dwNumClusters)) {
RNG_RandomUpdate(&dwSectors, sizeof(dwSectors));
RNG_RandomUpdate(&dwBytes, sizeof(dwBytes));
RNG_RandomUpdate(&dwFreeClusters, sizeof(dwFreeClusters));
RNG_RandomUpdate(&dwNumClusters, sizeof(dwNumClusters));
}
// Skip the potentially slow file scanning if the OS's PRNG worked.
if (!usedWindowsPRNG)
ReadSystemFiles();
nBytes = RNG_GetNoise(buffer, 20); // get up to 20 bytes
RNG_RandomUpdate(buffer, nBytes);
}
