327 lines
8.6 KiB
C++
327 lines
8.6 KiB
C++
/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1993 **/
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/**********************************************************************/
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/*
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sockutil.c
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This module contains utility routines for managing & manipulating
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sockets.
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FILE HISTORY:
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VladimV 30-May-1995 Created
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*/
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#define INCL_INETSRV_INCS
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#include "smtpinc.h"
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extern HINSTANCE g_WSockMsgDll;
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//
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// Public functions.
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//
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/*******************************************************************
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NAME: InitializeSockets
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SYNOPSIS: Initializes socket access. Among other things, this
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routine is responsible for connecting to WinSock,
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and creating the connection thread.
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RETURNS: APIERR - NO_ERROR if successful, otherwise a Win32
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error code.
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NOTES: This routine may only be called by a single thread
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of execution; it is not necessarily multi-thread safe.
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HISTORY:
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********************************************************************/
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APIERR InitializeSockets( VOID )
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{
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WSADATA wsadata;
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SOCKERR serr;
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TraceFunctEnter( "InitializeSockets" );
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//
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// Connect to WinSock.
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//
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serr = WSAStartup( MAKEWORD( 1, 1 ), &wsadata );
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if( serr != 0 ) {
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// g_pInetSvc->LogEvent( SMTP_EVENT_CANNOT_INITIALIZE_WINSOCK,
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// 0, (const CHAR **) NULL, serr);
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FatalTrace( 0, "cannot initialize WinSock, socket error %d", serr); _ASSERT( FALSE);
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} else {
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DebugTrace( 0, "Sockets initialized");
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}
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TraceFunctLeave();
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return serr;
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} // InitializeSockets
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/*******************************************************************
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NAME: TerminateSockets
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SYNOPSIS: Terminate socket access. This routine is responsible
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for closing the connection socket(s) and detaching
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from WinSock.
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NOTES: This routine may only be called by a single thread
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of execution; it is not necessarily multi-thread safe.
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HISTORY:
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********************************************************************/
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VOID TerminateSockets( VOID )
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{
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SOCKERR serr;
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TraceFunctEnter( "TerminateSockets" );
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//
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// Disconnect from WinSock.
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//
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serr = WSACleanup();
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if( serr != 0 ) {
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FatalTrace( 0, "cannot terminate WinSock, error=%d", serr); _ASSERT( FALSE);
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} else {
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DebugTrace( 0, "Sockets terminated");
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}
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TraceFunctLeave();
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} // TerminateSockets
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/*******************************************************************
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NAME: GetSockErrorMessage
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SYNOPSIS: This routine is responsible for getting winsock
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error messages stored in smtpsvc.dll
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HISTORY:
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********************************************************************/
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DWORD GetSockErrorMessage(DWORD dwErrno, char * ErrorBuf, DWORD ErrorBufSize)
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{
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DWORD msglen;
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DWORD usMsgNum;
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switch (dwErrno)
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{
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case WSAENAMETOOLONG:
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usMsgNum = SMTP_WSAENAMETOOLONG;
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break;
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case WSASYSNOTREADY:
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usMsgNum = SMTP_WSASYSNOTREADY;
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break;
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case WSAVERNOTSUPPORTED:
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usMsgNum = SMTP_WSAVERNOTSUPPORTED;
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break;
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case WSAESHUTDOWN:
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usMsgNum = SMTP_WSAESHUTDOWN;
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break;
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case WSAEINTR:
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usMsgNum = SMTP_WSAEINTR;
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break;
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case WSAHOST_NOT_FOUND:
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usMsgNum = SMTP_WSAHOST_NOT_FOUND;
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break;
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case WSATRY_AGAIN:
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usMsgNum = SMTP_WSATRY_AGAIN;
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break;
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case WSANO_RECOVERY:
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usMsgNum = SMTP_WSANO_RECOVERY;
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break;
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case WSANO_DATA:
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usMsgNum = SMTP_WSANO_DATA;
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break;
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case WSAEBADF:
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usMsgNum = SMTP_WSAEBADF;
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break;
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case WSAEWOULDBLOCK:
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usMsgNum = SMTP_WSAEWOULDBLOCK;
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break;
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case WSAEINPROGRESS:
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usMsgNum = SMTP_WSAEINPROGRESS;
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break;
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case WSAEALREADY:
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usMsgNum = SMTP_WSAEALREADY;
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break;
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case WSAEFAULT:
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usMsgNum = SMTP_WSAEFAULT;
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break;
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case WSAEDESTADDRREQ:
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usMsgNum = SMTP_WSAEDESTADDRREQ;
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break;
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case WSAEMSGSIZE:
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usMsgNum = SMTP_WSAEMSGSIZE;
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break;
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case WSAEPFNOSUPPORT:
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usMsgNum = SMTP_WSAEPFNOSUPPORT;
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break;
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case WSAENOTEMPTY:
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usMsgNum = SMTP_WSAENOTEMPTY;
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break;
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case WSAEPROCLIM:
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usMsgNum = SMTP_WSAEPROCLIM;
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break;
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case WSAEUSERS:
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usMsgNum = SMTP_WSAEUSERS;
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break;
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case WSAEDQUOT:
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usMsgNum = SMTP_WSAEDQUOT;
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break;
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case WSAESTALE:
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usMsgNum = SMTP_WSAESTALE;
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break;
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case WSAEINVAL:
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usMsgNum = SMTP_WSAEINVAL;
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break;
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case WSAEMFILE:
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usMsgNum = SMTP_WSAEMFILE;
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break;
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case WSAELOOP:
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usMsgNum = SMTP_WSAELOOP;
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break;
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case WSAEREMOTE:
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usMsgNum = SMTP_WSAEREMOTE;
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break;
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case WSAENOTSOCK:
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usMsgNum = SMTP_WSAENOTSOCK;
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break;
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case WSAEADDRNOTAVAIL:
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usMsgNum = SMTP_WSAEADDRNOTAVAIL;
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break;
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case WSAEADDRINUSE:
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usMsgNum = SMTP_WSAEADDRINUSE;
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break;
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case WSAEAFNOSUPPORT:
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usMsgNum = SMTP_WSAEAFNOSUPPORT;
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break;
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case WSAESOCKTNOSUPPORT:
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usMsgNum = SMTP_WSAESOCKTNOSUPPORT;
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break;
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case WSAEPROTONOSUPPORT:
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usMsgNum = SMTP_WSAEPROTONOSUPPORT;
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break;
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case WSAENOBUFS:
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usMsgNum = SMTP_WSAENOBUFS;
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break;
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case WSAETIMEDOUT:
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usMsgNum = SMTP_WSAETIMEDOUT;
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break;
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case WSAEISCONN:
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usMsgNum = SMTP_WSAEISCONN;
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break;
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case WSAENOTCONN:
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usMsgNum = SMTP_WSAENOTCONN;
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break;
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case WSAENOPROTOOPT:
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usMsgNum = SMTP_WSAENOPROTOOPT;
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break;
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case WSAECONNRESET:
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usMsgNum = SMTP_WSAECONNRESET;
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break;
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case WSAECONNABORTED:
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usMsgNum = SMTP_WSAECONNABORTED;
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break;
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case WSAENETDOWN:
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usMsgNum = SMTP_WSAENETDOWN;
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break;
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case WSAENETRESET:
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usMsgNum = SMTP_WSAENETRESET;
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break;
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case WSAECONNREFUSED:
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usMsgNum = SMTP_WSAECONNREFUSED;
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break;
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case WSAEHOSTDOWN:
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usMsgNum = SMTP_WSAEHOSTDOWN;
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break;
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case WSAEHOSTUNREACH:
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usMsgNum = SMTP_WSAEHOSTUNREACH;
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break;
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case WSAEPROTOTYPE:
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usMsgNum = SMTP_WSAEPROTOTYPE;
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break;
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case WSAEOPNOTSUPP:
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usMsgNum = SMTP_WSAEOPNOTSUPP;
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break;
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case WSAENETUNREACH:
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usMsgNum = SMTP_WSAENETUNREACH;
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break;
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case WSAETOOMANYREFS:
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usMsgNum = SMTP_WSAETOOMANYREFS;
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break;
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default:
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usMsgNum = dwErrno;
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break;
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}
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// call the OS using US/ASCII
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msglen = FormatMessage(FORMAT_MESSAGE_FROM_HMODULE, g_WSockMsgDll, usMsgNum,
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MAKELANGID( LANG_ENGLISH, SUBLANG_ENGLISH_US ),
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ErrorBuf, ErrorBufSize, NULL);
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return(msglen);
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}
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/*++
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Name :
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MyStrChr
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Description:
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Works just like strchr(), but takes the size
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of the buffer
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Arguments:
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Line - Buffer to search
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Val - Value to look for in the buffer
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LineSize - Size of Line
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Returns:
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If Val is found, a pointer to Val is
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returned, els NULL
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--*/
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char * MyStrChr(char *Line, unsigned char Val, DWORD LineSize)
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{
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register DWORD Loop = 0;
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unsigned char * Match = NULL;
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register unsigned char * SearchPtr;
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ASSERT( Line != NULL);
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if(LineSize == 0)
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return NULL;
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SearchPtr = (unsigned char *) Line;
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// Scan the entire buffer looking for Val
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for(Loop = 0; Loop < LineSize; Loop++)
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{
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if (SearchPtr[Loop] == Val)
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{
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Match = &SearchPtr[Loop];
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break;
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}
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} // for
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return (char *) Match;
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}
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