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Diffstat (limited to 'nss/lib/freebl/os2_rand.c')
-rw-r--r--nss/lib/freebl/os2_rand.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/nss/lib/freebl/os2_rand.c b/nss/lib/freebl/os2_rand.c
deleted file mode 100644
index 407b080..0000000
--- a/nss/lib/freebl/os2_rand.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#define INCL_DOS
-#define INCL_DOSERRORS
-#include <os2.h>
-#include "secrng.h"
-#include "prerror.h"
-#include <stdlib.h>
-#include <time.h>
-#include <stdio.h>
-#include <sys/stat.h>
-
-static BOOL
-clockTickTime(unsigned long *phigh, unsigned long *plow)
-{
- APIRET rc = NO_ERROR;
- QWORD qword = { 0, 0 };
-
- rc = DosTmrQueryTime(&qword);
- if (rc != NO_ERROR)
- return FALSE;
-
- *phigh = qword.ulHi;
- *plow = qword.ulLo;
-
- return TRUE;
-}
-
-size_t
-RNG_GetNoise(void *buf, size_t maxbuf)
-{
- unsigned long high = 0;
- unsigned long low = 0;
- clock_t val = 0;
- int n = 0;
- int nBytes = 0;
- time_t sTime;
-
- if (maxbuf <= 0)
- return 0;
-
- clockTickTime(&high, &low);
-
- /* get the maximally changing bits first */
- nBytes = sizeof(low) > maxbuf ? maxbuf : sizeof(low);
- memcpy(buf, &low, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- nBytes = sizeof(high) > maxbuf ? maxbuf : sizeof(high);
- memcpy(((char *)buf) + n, &high, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- /* get the number of milliseconds that have elapsed since application started */
- val = clock();
-
- nBytes = sizeof(val) > maxbuf ? maxbuf : sizeof(val);
- memcpy(((char *)buf) + n, &val, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- /* get the time in seconds since midnight Jan 1, 1970 */
- time(&sTime);
- nBytes = sizeof(sTime) > maxbuf ? maxbuf : sizeof(sTime);
- memcpy(((char *)buf) + n, &sTime, nBytes);
- n += nBytes;
-
- return n;
-}
-
-static BOOL
-EnumSystemFiles(void (*func)(const char *))
-{
- APIRET rc;
- ULONG sysInfo = 0;
- char bootLetter[2];
- char sysDir[_MAX_PATH] = "";
- char filename[_MAX_PATH];
- HDIR hdir = HDIR_CREATE;
- ULONG numFiles = 1;
- FILEFINDBUF3 fileBuf = { 0 };
- ULONG buflen = sizeof(FILEFINDBUF3);
-
- if (DosQuerySysInfo(QSV_BOOT_DRIVE, QSV_BOOT_DRIVE, (PVOID)&sysInfo,
- sizeof(ULONG)) == NO_ERROR) {
- bootLetter[0] = sysInfo + 'A' - 1;
- bootLetter[1] = '\0';
- strcpy(sysDir, bootLetter);
- strcpy(sysDir + 1, ":\\OS2\\");
-
- strcpy(filename, sysDir);
- strcat(filename, "*.*");
- }
-
- rc = DosFindFirst(filename, &hdir, FILE_NORMAL, &fileBuf, buflen,
- &numFiles, FIL_STANDARD);
- if (rc == NO_ERROR) {
- do {
- // pass the full pathname to the callback
- sprintf(filename, "%s%s", sysDir, fileBuf.achName);
- (*func)(filename);
-
- numFiles = 1;
- rc = DosFindNext(hdir, &fileBuf, buflen, &numFiles);
- if (rc != NO_ERROR && rc != ERROR_NO_MORE_FILES)
- printf("DosFindNext errod code = %d\n", rc);
- } while (rc == NO_ERROR);
-
- rc = DosFindClose(hdir);
- if (rc != NO_ERROR)
- printf("DosFindClose error code = %d", rc);
- } else
- printf("DosFindFirst error code = %d", rc);
-
- return TRUE;
-}
-
-static int dwNumFiles, dwReadEvery, dwFileToRead = 0;
-
-static void
-CountFiles(const char *file)
-{
- dwNumFiles++;
-}
-
-static void
-ReadFiles(const char *file)
-{
- if ((dwNumFiles % dwReadEvery) == 0)
- RNG_FileForRNG(file);
-
- dwNumFiles++;
-}
-
-static void
-ReadSingleFile(const char *filename)
-{
- unsigned char buffer[1024];
- FILE *file;
-
- file = fopen((char *)filename, "rb");
- if (file != NULL) {
- while (fread(buffer, 1, sizeof(buffer), file) > 0)
- ;
- fclose(file);
- }
-}
-
-static void
-ReadOneFile(const char *file)
-{
- if (dwNumFiles == dwFileToRead) {
- ReadSingleFile(file);
- }
-
- dwNumFiles++;
-}
-
-static void
-ReadSystemFiles(void)
-{
- // first count the number of files
- dwNumFiles = 0;
- if (!EnumSystemFiles(CountFiles))
- return;
-
- RNG_RandomUpdate(&dwNumFiles, sizeof(dwNumFiles));
-
- // now read 10 files
- if (dwNumFiles == 0)
- return;
-
- dwReadEvery = dwNumFiles / 10;
- if (dwReadEvery == 0)
- dwReadEvery = 1; // less than 10 files
-
- dwNumFiles = 0;
- EnumSystemFiles(ReadFiles);
-}
-
-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_FileForRNG(const char *filename)
-{
- struct stat stat_buf;
- unsigned char buffer[1024];
- FILE *file = 0;
- int nBytes = 0;
- static int totalFileBytes = 0;
-
- if (stat((char *)filename, &stat_buf) < 0)
- return;
-
- RNG_RandomUpdate((unsigned char *)&stat_buf, sizeof(stat_buf));
-
- file = fopen((char *)filename, "r");
- if (file != NULL) {
- for (;;) {
- size_t bytes = fread(buffer, 1, sizeof(buffer), file);
-
- if (bytes == 0)
- break;
-
- RNG_RandomUpdate(buffer, bytes);
- totalFileBytes += bytes;
- if (totalFileBytes > 250000)
- break;
- }
- fclose(file);
- }
-
- nBytes = RNG_GetNoise(buffer, 20);
- RNG_RandomUpdate(buffer, nBytes);
-}
-
-static void
-rng_systemJitter(void)
-{
- dwNumFiles = 0;
- EnumSystemFiles(ReadOneFile);
- dwFileToRead++;
- if (dwFileToRead >= dwNumFiles) {
- dwFileToRead = 0;
- }
-}
-
-size_t
-RNG_SystemRNG(void *dest, size_t maxLen)
-{
- return rng_systemFromNoise(dest, maxLen);
-}
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