76 lines
2.7 KiB
Diff
76 lines
2.7 KiB
Diff
From ede24db26773b5ce2c2d7e13bf12939b55124281 Mon Sep 17 00:00:00 2001
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From: Zebediah Figura <z.figura12@gmail.com>
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Date: Fri, 26 Feb 2021 22:31:19 -0600
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Subject: [PATCH] shell32: Implement the "runas" verb.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Based on a patch by Michael Müller.
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Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
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---
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dlls/shell32/shlexec.c | 26 ++++++++++++++++++++++++--
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1 file changed, 24 insertions(+), 2 deletions(-)
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diff --git a/dlls/shell32/shlexec.c b/dlls/shell32/shlexec.c
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index 8c7e3cf0808..c9a996a13dd 100644
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--- a/dlls/shell32/shlexec.c
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+++ b/dlls/shell32/shlexec.c
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@@ -292,6 +292,21 @@ static HRESULT SHELL_GetPathFromIDListForExecuteW(LPCITEMIDLIST pidl, LPWSTR psz
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return hr;
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}
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+static HANDLE get_admin_token(void)
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+{
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+ TOKEN_ELEVATION_TYPE type;
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+ TOKEN_LINKED_TOKEN linked;
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+ DWORD size;
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+
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+ if (!GetTokenInformation(GetCurrentThreadEffectiveToken(), TokenElevationType, &type, sizeof(type), &size)
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+ || type == TokenElevationTypeFull)
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+ return NULL;
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+
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+ if (!GetTokenInformation(GetCurrentThreadEffectiveToken(), TokenLinkedToken, &linked, sizeof(linked), &size))
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+ return NULL;
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+ return linked.LinkedToken;
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+}
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+
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/*************************************************************************
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* SHELL_ExecuteW [Internal]
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*
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@@ -305,6 +320,7 @@ static UINT_PTR SHELL_ExecuteW(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
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UINT gcdret = 0;
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WCHAR curdir[MAX_PATH];
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DWORD dwCreationFlags;
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+ HANDLE token = NULL;
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TRACE("Execute %s from directory %s\n", debugstr_w(lpCmd), debugstr_w(psei->lpDirectory));
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@@ -326,8 +342,12 @@ static UINT_PTR SHELL_ExecuteW(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
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dwCreationFlags = CREATE_UNICODE_ENVIRONMENT;
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if (!(psei->fMask & SEE_MASK_NO_CONSOLE))
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dwCreationFlags |= CREATE_NEW_CONSOLE;
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- if (CreateProcessW(NULL, (LPWSTR)lpCmd, NULL, NULL, FALSE, dwCreationFlags, env,
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- NULL, &startup, &info))
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+
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+ if (psei->lpVerb && !wcsicmp(psei->lpVerb, L"runas"))
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+ token = get_admin_token();
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+
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+ if (CreateProcessAsUserW(token, NULL, (LPWSTR)lpCmd, NULL, NULL, FALSE,
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+ dwCreationFlags, env, NULL, &startup, &info))
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{
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/* Give 30 seconds to the app to come up, if desired. Probably only needed
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when starting app immediately before making a DDE connection. */
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@@ -347,6 +367,8 @@ static UINT_PTR SHELL_ExecuteW(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
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retval = ERROR_BAD_FORMAT;
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}
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+ CloseHandle(token);
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+
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TRACE("returning %Iu\n", retval);
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psei_out->hInstApp = (HINSTANCE)retval;
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--
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2.34.1
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