165 lines
3.7 KiB
C
165 lines
3.7 KiB
C
/**************************************************************************\
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* LPLow.C *
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*------------------------------------------------------------------------*
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* *
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* PPR Support for low level network and path handling. *
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* *
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\**************************************************************************/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windef.h>
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#include <stdio.h>
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#include <string.h>
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#define INCL_NETUSE
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#define INCL_NETWKSTA
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#define INCL_NETERRORS
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#include <windows.h>
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#include "lpr.h"
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extern BOOL fVerify; /* From LPR.C */
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BOOL fRedir = FALSE; /* TRUE => a redirection was used */
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void SetupRedir()
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{
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int err;
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DWORD wnError;
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CHAR szRemoteName[256];
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DWORD BufferSize = sizeof(szRemoteName)/sizeof(szRemoteName[0]);
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if (*szNet == '\0' || _strcmpi(szNet, "None") == 0)
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return; /* don't try to make connection */
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if(szPass) {
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strcpy(szNet + strlen(szNet) + 1, szPass);
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}
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if ( WN_SUCCESS != ( wnError = WNetGetConnection ( (PTSTR) szPName,
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szRemoteName,
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&BufferSize ) ) ) {
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if ( (wnError != WN_NOT_CONNECTED) &&
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(wnError != WN_CONNECTION_CLOSED) ) {
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switch( wnError ) {
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case WN_NO_NETWORK:
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Fatal("The network is not installed or workstation not started");
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break;
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case WN_BAD_LOCALNAME:
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Fatal("Invalid local name specified");
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break;
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case WN_EXTENDED_ERROR:
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Fatal("Extended error from WNetGetConnection" );
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break;
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default:
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Fatal("error from WNetGetConnection: %d",wnError );
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break;
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}
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}
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}
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else { /* no error */
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if ( !strcmp( szRemoteName, szNet ) ) {
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return;
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}
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}
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/* no redirection, so set one up */
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if ((err = SetPrnRedir(szPName, szNet)) == 0)
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fRedir = TRUE;
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else if (err == 1)
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Fatal("redirection of %s to %s failed (%d)\nredirector is not started",
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szPName,szNet,err);
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else if (err != ERROR_ALREADY_ASSIGNED)
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Fatal("redirection of %s to %s failed (%d)",
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szPName,szNet,err);
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}
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void ResetRedir()
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{
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int err;
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if (fRedir)
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{
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if ((err = EndRedir(szPName)) != 0)
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Error("removal of redirection failed (%d)", err);
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fRedir = FALSE;
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}
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}
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int EndRedir(szDev)
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/* End redirection for szDev, return 0 if success */
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/* otherwise return error number */
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char * szDev;
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{
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DWORD wnError;
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if (WN_SUCCESS != ( wnError = WNetCancelConnection ( szDev, TRUE) ) ) {
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return ( 0 );
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}
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else {
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return ( (int) wnError );
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}
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}
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int SetPrnRedir(szDev, szPath)
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char *szDev;
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char *szPath;
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{
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DWORD wnError;
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/* return 0, 1 or other error */
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if ( szPass && *szPass ) {
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wnError = WNetAddConnection ( (LPTSTR) szPath, (LPTSTR) szPass, (LPTSTR) szDev );
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} else {
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wnError = WNetAddConnection ( (LPTSTR) szPath, NULL, (LPTSTR) szDev );
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}
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if(wnError == WN_SUCCESS) {
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wnError = 0;
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} else if((wnError == WN_NO_NETWORK) || (wnError == WN_NO_NET_OR_BAD_PATH)) {
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wnError = 1;
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}
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return ( (int)wnError );
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}
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BOOL QueryUserName(char *szName)
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{
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UCHAR pUserName [128];
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DWORD BufferSize = 128;
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BOOL rc;
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DWORD wnError;
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if (WN_SUCCESS != ( wnError = WNetGetUser ( NULL, (LPTSTR) pUserName, &BufferSize ) ) ) {
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strcpy(szName,"no name");
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rc = FALSE;
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if(fVerify) {
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fprintf(stdout,"Warning: WNetGetUser returns %d\n", wnError );
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}
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} else {
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strcpy(szName, pUserName);
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rc = TRUE;
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}
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return(rc);
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}
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