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132 lines
3.3 KiB
132 lines
3.3 KiB
/**********************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1990, 1991 **/
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/**********************************************************************/
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/*
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pfile.c
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mapping layer for NetFile API
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FILE HISTORY:
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danhi Created
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danhi 01-Apr-1991 Change to LM coding style
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*/
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#define INCL_NET
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#define INCL_DOSERRORS
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#define INCL_DOSMEMMGR
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#include <os2.h>
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#include <lan.h>
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#include <stdlib.h>
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#include "port1632.h"
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USHORT MNetFileClose (
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const CHAR FAR * pszServer,
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ULONG ulFileId ) {
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return(NetFileClose2(pszServer, ulFileId));
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}
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USHORT MNetFileEnum (
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const CHAR FAR * pszServer,
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const CHAR FAR * pszBasePath,
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const CHAR FAR * pszUserName,
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SHORT Level,
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CHAR FAR ** ppBuffer,
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ULONG ulMaxPreferred,
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USHORT FAR * pcEntriesRead,
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USHORT FAR * pcTotalAvail,
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VOID FAR * pResumeKey ) {
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USHORT usTotalAvailable,
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usReturnCode;
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SEL sel;
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// validate the maxprefer parm
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if (ulMaxPreferred != -1L)
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{
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if (ulMaxPreferred > FULL_SEG_BUFFER_SIZE)
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{
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return(ERROR_INVALID_PARAMETER);
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}
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// implement the new maxpreferred concept
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usTotalAvailable = min((USHORT) ulMaxPreferred, BIG_BUFFER_SIZE);
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}
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else
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{
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usTotalAvailable = BIG_BUFFER_SIZE;
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}
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// get a 4K buffer
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*ppBuffer = MGetBuffer(BIG_BUFFER_SIZE);
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if (*ppBuffer == NULL)
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{
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return(ERROR_NOT_ENOUGH_MEMORY);
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}
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usReturnCode = NetFileEnum2(pszServer, pszBasePath, pszUserName, Level,
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*ppBuffer, usTotalAvailable, pcEntriesRead, pcTotalAvail,
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pResumeKey );
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// is there more data? if so, allocate a big enough buffer to get it
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if ((ulMaxPreferred == -1L || ulMaxPreferred > BIG_BUFFER_SIZE) &&
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usReturnCode == ERROR_MORE_DATA || usReturnCode == NERR_BufTooSmall)
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{
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NetApiBufferFree(*ppBuffer);
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// implement the new maxpreferred concept
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usTotalAvailable = min((USHORT) ulMaxPreferred,
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FULL_SEG_BUFFER_SIZE);
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if (DEBUGALLOC(usTotalAvailable, & sel, SEG_NONSHARED)) {
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return(ERROR_NOT_ENOUGH_MEMORY);
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}
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*ppBuffer = MAKEP(sel, 0);
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usReturnCode = NetFileEnum2(pszServer, pszBasePath, pszUserName, Level,
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*ppBuffer, usTotalAvailable, pcEntriesRead, pcTotalAvail,
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pResumeKey );
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}
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// If we're returning an error that's not moredata, or there are no
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// entries to return, free the buffer first
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if ((usReturnCode && usReturnCode != ERROR_MORE_DATA &&
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usReturnCode != NERR_BufTooSmall) || *pcEntriesRead == 0) {
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NetApiBufferFree(*ppBuffer);
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}
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return (usReturnCode);
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}
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USHORT MNetFileGetInfo (
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const CHAR FAR * pszServer,
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ULONG ulFileId,
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SHORT Level,
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CHAR FAR ** ppBuffer ) {
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USHORT usReturnCode,
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cbTotalAvail;
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// get a small buffer
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*ppBuffer = MGetBuffer(LITTLE_BUFFER_SIZE);
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if (*ppBuffer == NULL)
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{
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return(ERROR_NOT_ENOUGH_MEMORY);
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}
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usReturnCode = NetFileGetInfo2(pszServer, ulFileId, Level, *ppBuffer,
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LITTLE_BUFFER_SIZE, & cbTotalAvail);
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// If we're returning an error that's not moredata, free the buffer first
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if (usReturnCode && usReturnCode != ERROR_MORE_DATA &&
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usReturnCode != NERR_BufTooSmall) {
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NetApiBufferFree(*ppBuffer);
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}
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return (usReturnCode);
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}
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