381 lines
10 KiB
C
381 lines
10 KiB
C
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/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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Sharpath.H
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Abstract:
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display message box and share path
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Author:
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Bob Watson (a-robw)
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Revision History:
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17 Feb 94 Written
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--*/
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//
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// Windows Include Files
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//
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#include <windows.h>
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#include <stdio.h>
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#include <malloc.h>
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#include <tchar.h> // unicode macros
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#include <lmcons.h> // lanman API constants
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#include <lmerr.h> // lanman error returns
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#include <lmshare.h> // sharing API prototypes
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//
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// app include files
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//
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#include "otnboot.h"
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#include "otnbtdlg.h"
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#define NCDU_MSG_SHARE_DIR (WM_USER + 101)
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static PSPS_DATA pspData; // path & share info passed in
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PSECURITY_DESCRIPTOR
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GetShareSecurityDescriptor (
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VOID
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)
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/*++
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Routine Description:
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Allocates, and initializes a security descriptor for the
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share point created by the app. The security descriptor
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contains two ACE's
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Domain Admins: Full Control
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Everyone: Read only
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Arguments:
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None
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Return Value:
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Address of an initialized security descriptor of all went OK
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a Null pointer if an error occurred (which gives everyone Full Control)
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--*/
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{
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PSECURITY_DESCRIPTOR pSD = NULL;
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PSID psidAdmins = NULL;
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PSID psidWorld = NULL;
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PSID psidDomainAdmins = NULL;
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BOOL bValidSd = TRUE;
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PACL pACL = NULL;
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DWORD dwAclSize = 0;
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DWORD dwError = ERROR_SUCCESS;
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DWORD dwSidLength = 0;
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DWORD dwDomainNameLength = 0;
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SID_IDENTIFIER_AUTHORITY siaAdmins = SECURITY_NT_AUTHORITY;
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SID_IDENTIFIER_AUTHORITY siaWorld = SECURITY_WORLD_SID_AUTHORITY;
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LPTSTR szDomainName;
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SID_NAME_USE snu;
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// create an empty Security Descriptor
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pSD = GlobalAlloc (GPTR, SMALL_BUFFER_SIZE);
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if (pSD != NULL) {
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if (InitializeSecurityDescriptor (pSD, SECURITY_DESCRIPTOR_REVISION)) {
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// create the Admin SID
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if (AllocateAndInitializeSid (&siaAdmins,
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2,
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SECURITY_BUILTIN_DOMAIN_RID,
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DOMAIN_ALIAS_RID_ADMINS,
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0, 0, 0, 0, 0, 0, &psidAdmins)) {
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// create the World SID
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if (AllocateAndInitializeSid(&siaWorld,
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1,
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SECURITY_WORLD_RID,
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0, 0, 0, 0, 0, 0, 0, &psidWorld)) {
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psidDomainAdmins = GlobalAlloc (GPTR, SMALL_BUFFER_SIZE);
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if (psidDomainAdmins != NULL) {
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dwSidLength = SMALL_BUFFER_SIZE;
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}
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szDomainName = GlobalAlloc (GPTR, MAX_PATH_BYTES);
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if (szDomainName != NULL) {
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dwDomainNameLength = MAX_PATH;
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}
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LookupAccountName (
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pspData->szServer,
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GetStringResource (CSZ_DOMAIN_ADMINS),
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psidDomainAdmins,
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&dwSidLength,
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szDomainName,
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&dwDomainNameLength,
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&snu);
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// allocate and initialize the ACL;
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dwAclSize = sizeof(ACL) +
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(3 * sizeof(ACCESS_ALLOWED_ACE)) +
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GetLengthSid(psidAdmins) +
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GetLengthSid(psidWorld) +
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(psidDomainAdmins != NULL ? GetLengthSid(psidDomainAdmins) : 0) -
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sizeof(DWORD);
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pACL = GlobalAlloc (GPTR, dwAclSize);
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if(pACL == NULL) {
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// free local structures
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FreeSid (psidAdmins);
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FreeSid (psidWorld);
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FREE_IF_ALLOC (pSD);
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return NULL;
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}
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InitializeAcl (pACL, dwAclSize, ACL_REVISION);
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if (psidDomainAdmins != NULL) {
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// add the Domain Admin ACEs
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AddAccessAllowedAce (pACL, ACL_REVISION,
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GENERIC_ALL, psidDomainAdmins);
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}
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// add the Admin ACEs
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AddAccessAllowedAce (pACL, ACL_REVISION,
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GENERIC_ALL, psidAdmins);
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// add the World ACE
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AddAccessAllowedAce (pACL, ACL_REVISION,
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(GENERIC_READ | GENERIC_EXECUTE), psidWorld);
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// add a discretionary ACL to the Security Descriptor
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SetSecurityDescriptorDacl (
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pSD,
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TRUE,
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pACL,
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FALSE);
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// free local structures
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FreeSid (psidAdmins);
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FreeSid (psidWorld);
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// return the completed SD
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} else {
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// unable to allocate a World (everyone) SID
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// free Admin SID and set not valid flag
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FreeSid (psidAdmins);
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bValidSd = FALSE;
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}
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} else {
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// unable to allocate an Admin SID
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bValidSd = FALSE;
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}
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} else {
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// unable to init. Security Descriptor
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bValidSd = FALSE;
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}
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}
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if ((pSD == NULL) || !bValidSd ) {
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// something happened, so the SD is not valid. Free it and return
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// NULL
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FREE_IF_ALLOC (pSD);
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pSD = NULL;
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} else {
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// make sure all was created OK
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if (!IsValidSecurityDescriptor(pSD)) {
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// an invalid sercurity descriptor was created so
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// get reason, then trash it.
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dwError = GetLastError();
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FREE_IF_ALLOC (pSD);
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pSD = NULL;
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}
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}
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return pSD;
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}
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static
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BOOL
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SharePathDlg_WM_INITDIALOG (
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IN HWND hwndDlg,
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IN WPARAM wParam,
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Process the WM_INITDIALOG windows message. Initialized the
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values in the dialog box controls to reflect the current
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values of the Application data structure.
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Arguments:
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IN HWND hwndDlg
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handle to dialog box window
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IN WPARAM wParam
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Not Used
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IN LPARAM lParam
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address of SHARE_PATH_DLG_STRUCT that contains share information
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Return Value:
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FALSE
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--*/
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{
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PositionWindow (hwndDlg);
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if (lParam == 0) {
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pspData = NULL;
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EndDialog (hwndDlg, IDCANCEL);
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} else {
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pspData = (PSPS_DATA)lParam;
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SetDlgItemText (hwndDlg, NCDU_CTL_SHARING_PATH_NAME, pspData->szPath);
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SetDlgItemText (hwndDlg, NCDU_CTL_SHARING_PATH_ON,
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(pspData->szServer != NULL ? pspData->szServer :
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GetStringResource (CSZ_LOCAL_MACHINE)));
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SetDlgItemText (hwndDlg, NCDU_CTL_SHARING_PATH_AS,
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pspData->szShareName);
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SetCursor (LoadCursor(NULL, IDC_WAIT));
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PostMessage (hwndDlg, NCDU_MSG_SHARE_DIR, 0, 0);
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}
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// SetActiveWindow (hwndDlg);
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return TRUE;
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}
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static
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BOOL
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SharePathDlg_SHARE_DIR (
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IN HWND hwndDlg,
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IN WPARAM wParam,
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IN LPARAM lParam // LPTSTR to sharename
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)
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/*++
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Routine Description:
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Shares either the Distribution or the Destination dir depending on
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the wParam. Uses the share name entered in the display. If
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successful this message terminates the dialog box, otherwise
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an error message will be displayed.
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Arguments:
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IN HWND hwndDlg
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Handle to dialog box window
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IN WPARAM wParam
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Not Used
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IN LPARAM lParam
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Not Used
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Return Value:
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TRUE if shared
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FALSE if not (GetLastError for info)
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--*/
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{
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BOOL bDist;
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NET_API_STATUS naStatus;
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DWORD dwParmErr;
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SHARE_INFO_502 si502; // share info block
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LONG lCount;
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bDist = (BOOL)wParam;
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// initialize share data block
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si502.shi502_netname = pspData->szShareName;
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si502.shi502_type = STYPE_DISKTREE;
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si502.shi502_remark = (LPWSTR)pspData->szRemark;
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si502.shi502_permissions = PERM_FILE_READ;
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si502.shi502_max_uses = SHI_USES_UNLIMITED;
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si502.shi502_current_uses = 0;
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si502.shi502_path = pspData->szPath;
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si502.shi502_passwd = NULL;
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si502.shi502_reserved = 0L;
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si502.shi502_security_descriptor = GetShareSecurityDescriptor();
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naStatus = NetShareAdd (
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pspData->szServer, // machine
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502, // level 502 request
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(LPBYTE)&si502, // data request buffer
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&dwParmErr); // parameter buffer
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if (naStatus != NERR_Success) {
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// restore cursor
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SetCursor (LoadCursor(NULL, IDC_ARROW));
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// display error
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MessageBox (
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hwndDlg,
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GetNetErrorMsg (naStatus),
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0,
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MB_OK_TASK_EXCL);
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EndDialog (hwndDlg, IDCANCEL);
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} else {
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// successfully shared so wait til it registers or we get bored
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lCount = 200; // wait 20 seconds then give up and leave
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while (!LookupLocalShare (pspData->szPath, TRUE,
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NULL, NULL )) {
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Sleep (100); // wait until the new share registers
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if (--lCount == 0) break;
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}
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Sleep (1000); // wait for shared dir to become available
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SetCursor (LoadCursor(NULL, IDC_ARROW));
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EndDialog (hwndDlg, IDOK);
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}
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FREE_IF_ALLOC (si502.shi502_security_descriptor);
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return TRUE;
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}
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INT_PTR CALLBACK
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SharePathDlgProc (
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IN HWND hwndDlg,
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IN UINT message,
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IN WPARAM wParam,
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Main Dialog Box Window Procedure for the Initial configuration screen
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Processes the following windows messages by dispatching the
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appropriate routine.
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WM_INITDIALOG: dialog box initialization
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WM_COMMAND: user input
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All other windows messages are processed by the default dialog box
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procedure.
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Arguments:
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Standard WNDPROC arguments
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Return Value:
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FALSE if the message is not processed by this routine, otherwise the
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value returned by the dispatched routine.
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--*/
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{
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switch (message) {
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case WM_INITDIALOG: return (SharePathDlg_WM_INITDIALOG (hwndDlg, wParam, lParam));
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case NCDU_MSG_SHARE_DIR: return (SharePathDlg_SHARE_DIR (hwndDlg, wParam, lParam));
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default: return FALSE;
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}
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}
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