97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
#include "mslocusr.h"
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#include "msluglob.h"
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#include <md5.h>
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HRESULT VerifySupervisorPassword(LPCSTR pszPassword)
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{
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#ifdef MSLOCUSR_USE_SUPERVISOR_PASSWORD
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if (!::fSupervisorKeyInit) {
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HKEY hkeyRating;
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LONG err;
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err = RegOpenKey(HKEY_LOCAL_MACHINE, ::szRATINGS, &hkeyRating);
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if (hkeyRating != NULL) {
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DWORD cbData = sizeof(::abSupervisorKey);
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DWORD dwType;
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err = ::RegQueryValueEx(hkeyRating, ::szRatingsSupervisorKeyName, NULL,
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&dwType, (LPBYTE)::abSupervisorKey, &cbData);
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if (err != ERROR_SUCCESS)
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err = ::RegQueryValueEx(hkeyRating, ::szUsersSupervisorKeyName, NULL,
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&dwType, (LPBYTE)::abSupervisorKey, &cbData);
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::RegCloseKey(hkeyRating);
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if (err == ERROR_SUCCESS) {
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if (dwType != REG_BINARY || cbData != sizeof(::abSupervisorKey)) {
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return E_UNEXPECTED;
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}
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::fSupervisorKeyInit = TRUE;
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}
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}
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else
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err = ERROR_FILE_NOT_FOUND;
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if (err != ERROR_SUCCESS) {
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return HRESULT_FROM_WIN32(err);
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}
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}
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if (pszPassword == NULL)
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return ResultFromScode(S_FALSE);
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MD5_CTX ctx;
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MD5Init(&ctx);
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MD5Update(&ctx, (const BYTE *)pszPassword, ::strlenf(pszPassword)+1);
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MD5Final(&ctx);
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return ResultFromScode(::memcmpf(::abSupervisorKey, ctx.digest, sizeof(::abSupervisorKey)) ? S_FALSE : S_OK);
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#else
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return S_OK; /* everybody's a supervisor */
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#endif
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}
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HRESULT ChangeSupervisorPassword(LPCSTR pszOldPassword, LPCSTR pszNewPassword)
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{
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#ifdef MSLOCUSR_USE_SUPERVISOR_PASSWORD
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HRESULT hres;
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hres = ::VerifySupervisorPassword(pszOldPassword);
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if (hres == S_FALSE) {
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return E_ACCESSDENIED;
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}
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MD5_CTX ctx;
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MD5Init(&ctx);
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MD5Update(&ctx, (const BYTE *)pszNewPassword, ::strlenf(pszNewPassword)+1);
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MD5Final(&ctx);
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::memcpyf(::abSupervisorKey, ctx.digest, sizeof(::abSupervisorKey));
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::fSupervisorKeyInit = TRUE;
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HKEY hkeyRating;
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LONG err = RegOpenKey(HKEY_LOCAL_MACHINE, ::szRATINGS, &hkeyRating);
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if (err == ERROR_SUCCESS) {
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char abTemp[sizeof(::abSupervisorKey)];
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LPCSTR pszValueToSet;
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DWORD dwType;
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DWORD cbData = sizeof(abTemp);
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if (::RegQueryValueEx(hkeyRating, ::szRatingsSupervisorKeyName, NULL,
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&dwType, (LPBYTE)abTemp, &cbData) == ERROR_SUCCESS)
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pszValueToSet = ::szRatingsSupervisorKeyName;
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else
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pszValueToSet = ::szUsersSupervisorKeyName;
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::RegSetValueEx(hkeyRating, pszValueToSet, NULL,
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REG_BINARY, (const BYTE *)::abSupervisorKey, sizeof(::abSupervisorKey));
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::RegCloseKey(hkeyRating);
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}
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#endif
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return NOERROR;
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}
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