请问有关regcreatekeyEx()函数的使用?
如何使用regcreatekeyEx(),特别是里面的参数值怎么设定?最好有例子!谢谢! 问题点数：0、回复次数：2Top
1 楼Xcoder（流浪狗）回复于 2003-06-03 21:26:57 得分 0
看 msdn 啊Top
2 楼nanjianhui（nan）回复于 2003-06-04 12:53:53 得分 0
到msdn里面看一下就知道了， 还有一个例子呢！！！
The following example creates a security descriptor for a new registry key using the following process. Similar code can be used to create a security descriptor for other object types.
The example fills an array of EXPLICIT_ACCESS structures with the information for two ACEs. One ACE allows read access to everyone; the other ACE allows full access to administrators.
The EXPLICIT_ACCESS array is passed to the SetEntriesInAcl function to create a DACL for the security descriptor.
After allocating memory for the security descriptor, the example calls the InitializeSecurityDescriptor and SetSecurityDescriptorDacl functions to initialize the security descriptor and attach the DACL.
The security descriptor is then stored in a SECURITY_ATTRIBUTES structure and passed to the RegCreateKeyEx function, which attaches the security descriptor to the newly created key.
#include <windows.h>
#include <stdio.h>
#include <aclapi.h>
void main(int argc, char *argv[]) {
DWORD dwRes, dwDisposition;
PSID pEveryoneSID = NULL, pAdminSID = NULL;
PACL pACL = NULL;
PSECURITY_DESCRIPTOR pSD = NULL;
EXPLICIT_ACCESS ea[2];
SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
SID_IDENTIFIER_AUTHORITY SIDAuthNT = SECURITY_NT_AUTHORITY;
SECURITY_ATTRIBUTES sa;
LONG lRes;
HKEY hkSub = NULL;
// Create a well-known SID for the Everyone group.
if(! AllocateAndInitializeSid( &SIDAuthWorld, 1,
SECURITY_WORLD_RID,
0, 0, 0, 0, 0, 0, 0,
&pEveryoneSID) ) {
printf( "AllocateAndInitializeSid Error %u\n", GetLastError() );
return;
}
// Initialize an EXPLICIT_ACCESS structure for an ACE.
// The ACE will allow Everyone read access to the key.
ZeroMemory(&ea, 2 * sizeof(EXPLICIT_ACCESS));
ea[0].grfAccessPermissions = KEY_READ;
ea[0].grfAccessMode = SET_ACCESS;
ea[0].grfInheritance= NO_INHERITANCE;
ea[0].Trustee.TrusteeForm = TRUSTEE_IS_SID;
ea[0].Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
ea[0].Trustee.ptstrName = (LPTSTR) pEveryoneSID;
// Create a SID for the BUILTIN\Administrators group.
if(! AllocateAndInitializeSid( &SIDAuthNT, 2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0,
&pAdminSID) ) {
printf( "AllocateAndInitializeSid Error %u\n", GetLastError() );
goto Cleanup;
}
// Initialize an EXPLICIT_ACCESS structure for an ACE.
// The ACE will allow the Administrators group full access to the key.
ea[1].grfAccessPermissions = KEY_ALL_ACCESS;
ea[1].grfAccessMode = SET_ACCESS;
ea[1].grfInheritance= NO_INHERITANCE;
ea[1].Trustee.TrusteeForm = TRUSTEE_IS_SID;
ea[1].Trustee.TrusteeType = TRUSTEE_IS_GROUP;
ea[1].Trustee.ptstrName = (LPTSTR) pAdminSID;
// Create a new ACL that contains the new ACEs.
dwRes = SetEntriesInAcl(2, ea, NULL, &pACL);
if (ERROR_SUCCESS != dwRes) {
printf( "SetEntriesInAcl Error %u\n", GetLastError() );
goto Cleanup;
}
// Initialize a security descriptor.
pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR,
SECURITY_DESCRIPTOR_MIN_LENGTH);
if (pSD == NULL) {
printf( "LocalAlloc Error %u\n", GetLastError() );
goto Cleanup;
}
if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)) {
printf( "InitializeSecurityDescriptor Error %u\n",
GetLastError() );
goto Cleanup;
}
// Add the ACL to the security descriptor.
if (!SetSecurityDescriptorDacl(pSD,
TRUE, // fDaclPresent flag
pACL,
FALSE)) // not a default DACL
{
printf( "SetSecurityDescriptorDacl Error %u\n", GetLastError() );
goto Cleanup;
}
// Initialize a security attributes structure.
sa.nLength = sizeof (SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = pSD;
sa.bInheritHandle = FALSE;
// Use the security attributes to set the security descriptor
// when you create a key.
lRes = RegCreateKeyEx(HKEY_CURRENT_USER, "mykey", 0, "", 0,
KEY_READ | KEY_WRITE, &sa, &hkSub, &dwDisposition);
printf( "RegCreateKeyEx result %u\n", lRes );
Cleanup:
if (pEveryoneSID)
FreeSid(pEveryoneSID);
if (pAdminSID)
FreeSid(pAdminSID);
if (pACL)
LocalFree(pACL);
if (pSD)
LocalFree(pSD);
if (hkSub)
RegCloseKey(hkSub);
return;
}
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