utils.c File Reference

#include "lsasrv.h"
#include <winuser.h>

Include dependency graph for utils.c:

Go to the source code of this file.

Functions
INT	LsapLoadString (HINSTANCE hInstance, UINT uId, LPWSTR lpBuffer, INT nBufferMax)
INT	LsapGetResourceStringLengthEx (_In_ HINSTANCE hInstance, _In_ UINT uId, _In_ USHORT usLanguage)
INT	LsapLoadStringEx (_In_ HINSTANCE hInstance, _In_ UINT uId, _In_ USHORT usLanguage, _Out_ LPWSTR lpBuffer, _Out_ INT nBufferMax)
PSID	LsapAppendRidToSid (PSID SrcSid, ULONG Rid)

Function Documentation

LsapAppendRidToSid()

PSID LsapAppendRidToSid	(	PSID	SrcSid,
		ULONG	Rid
	)

Definition at line 152 of file utils.c.

{
    ULONG Rids[8] = {0, 0, 0, 0, 0, 0, 0, 0};
    UCHAR RidCount;
    PSID DstSid;
    ULONG i;

    RidCount = *RtlSubAuthorityCountSid(SrcSid);
    if (RidCount >= 8)
        return NULL;

    for (i = 0; i < RidCount; i++)
        Rids[i] = *RtlSubAuthoritySid(SrcSid, i);

    Rids[RidCount] = Rid;
    RidCount++;

    RtlAllocateAndInitializeSid(RtlIdentifierAuthoritySid(SrcSid),
                                RidCount,
                                Rids[0],
                                Rids[1],
                                Rids[2],
                                Rids[3],
                                Rids[4],
                                Rids[5],
                                Rids[6],
                                Rids[7],
                                &DstSid);

    return DstSid;
}

Referenced by LsapAppendSidToGroups().

LsapGetResourceStringLengthEx()

INT LsapGetResourceStringLengthEx	(	_In_ HINSTANCE	hInstance,
		_In_ UINT	uId,
		_In_ USHORT	usLanguage
	)

Definition at line 64 of file utils.c.

{
    HGLOBAL hmem;
    HRSRC hrsrc;
    WCHAR *p;
    UINT i, string_num;

    /* Use loword (incremented by 1) as resourceid */
//    hrsrc = FindResourceExW(hInstance,
//                            MAKEINTRESOURCEW((LOWORD(uId) >> 4) + 1),
//                            (LPWSTR)RT_STRING,
//                            usLanguage);
    hrsrc = FindResourceW(hInstance,
                          MAKEINTRESOURCEW((LOWORD(uId) >> 4) + 1),
                          (LPWSTR)RT_STRING);
    if (!hrsrc)
        return 0;

    hmem = LoadResource(hInstance, hrsrc);
    if (!hmem)
        return 0;

    p = LockResource(hmem);
    string_num = uId & 0x000f;
    for (i = 0; i < string_num; i++)
        p += *p + 1;

    return *p + 1;
}

Referenced by LsarpLookupPrivilegeDisplayName().

LsapLoadString()

INT LsapLoadString	(	HINSTANCE	hInstance,
		UINT	uId,
		LPWSTR	lpBuffer,
		INT	nBufferMax
	)

Definition at line 17 of file utils.c.

{
    HGLOBAL hmem;
    HRSRC hrsrc;
    WCHAR *p;
    int string_num;
    int i;

    /* Use loword (incremented by 1) as resourceid */
    hrsrc = FindResourceW(hInstance,
                          MAKEINTRESOURCEW((LOWORD(uId) >> 4) + 1),
                          (LPWSTR)RT_STRING);
    if (!hrsrc)
        return 0;

    hmem = LoadResource(hInstance, hrsrc);
    if (!hmem)
        return 0;

    p = LockResource(hmem);
    string_num = uId & 0x000f;
    for (i = 0; i < string_num; i++)
        p += *p + 1;

    i = min(nBufferMax - 1, *p);
    if (i > 0)
    {
        memcpy(lpBuffer, p + 1, i * sizeof(WCHAR));
        lpBuffer[i] = 0;
    }
    else
    {
        if (nBufferMax > 1)
        {
            lpBuffer[0] = 0;
            return 0;
        }
    }

    return i;
}

Referenced by LsapInitSids().

LsapLoadStringEx()

INT LsapLoadStringEx	(	_In_ HINSTANCE	hInstance,
		_In_ UINT	uId,
		_In_ USHORT	usLanguage,
		_Out_ LPWSTR	lpBuffer,
		_Out_ INT	nBufferMax
	)

Definition at line 99 of file utils.c.

{
    HGLOBAL hmem;
    HRSRC hrsrc;
    WCHAR *p;
    int string_num;
    int i;

    /* Use loword (incremented by 1) as resourceid */
//    hrsrc = FindResourceExW(hInstance,
//                            MAKEINTRESOURCEW((LOWORD(uId) >> 4) + 1),
//                            (LPWSTR)RT_STRING,
//                            usLanguage);
    hrsrc = FindResourceW(hInstance,
                          MAKEINTRESOURCEW((LOWORD(uId) >> 4) + 1),
                          (LPWSTR)RT_STRING);
    if (!hrsrc)
        return 0;

    hmem = LoadResource(hInstance, hrsrc);
    if (!hmem)
        return 0;

    p = LockResource(hmem);
    string_num = uId & 0x000f;
    for (i = 0; i < string_num; i++)
        p += *p + 1;

    i = min(nBufferMax - 1, *p);
    if (i > 0)
    {
        memcpy(lpBuffer, p + 1, i * sizeof(WCHAR));
        lpBuffer[i] = 0;
    }
    else
    {
        if (nBufferMax > 1)
        {
            lpBuffer[0] = 0;
            return 0;
        }
    }

    return i;
}

Referenced by LsarpLookupPrivilegeDisplayName().