386 lines
9.3 KiB
C
386 lines
9.3 KiB
C
/*
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Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2000-Apr-09 or later
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(the contents of which are also included in zip.h) for terms of use.
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If, for some reason, all these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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/* os2acl.c - access to OS/2 (LAN Server) ACLs
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*
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* Author: Kai Uwe Rommel <rommel@ars.de>
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* Created: Mon Aug 08 1994
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*
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*/
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/*
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* supported 32-bit compilers:
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* - emx+gcc
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* - IBM C Set++ 2.1 or newer
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* - Watcom C/C++ 10.0 or newer
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*
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* supported 16-bit compilers:
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* - MS C 6.00A
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* - Watcom C/C++ 10.0 or newer
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*
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* supported OS/2 LAN environments:
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* - IBM LAN Server/Requester 3.0, 4.0 and 5.0 (Warp Server)
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* - IBM Peer 1.0 (Warp Connect)
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*/
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#ifdef KUR
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static char *rcsid =
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"$Id: os2acl.c,v 1.3 1996/04/03 19:18:27 rommel Exp rommel $";
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static char *rcsrev = "$Revision: 1.3 $";
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#endif
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/*
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* $Log: os2acl.c,v $
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* Revision 1.3 1996/04/03 19:18:27 rommel
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* minor fixes
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*
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* Revision 1.2 1996/03/30 22:03:52 rommel
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* avoid frequent dynamic allocation for every call
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* streamlined code
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*
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* Revision 1.1 1996/03/30 09:35:00 rommel
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* Initial revision
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <malloc.h>
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#define INCL_NOPM
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#define INCL_DOS
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#define INCL_DOSERRORS
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#include <os2.h>
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#include "os2/os2acl.h"
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#define UNLEN 20
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#if defined(__WATCOMC__) && defined(__386__) && !defined(__32BIT__)
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#define __32BIT__
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#endif
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#ifdef __32BIT__
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typedef ULONG U_INT;
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#ifdef __EMX__
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#define PSTR16 _far16ptr
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#define PTR16(x) _emx_32to16(x)
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#else /* other 32-bit */
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#define PSTR16 PCHAR16
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#define PTR16(x) ((PCHAR16)(x))
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#endif
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#else /* 16-bit */
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typedef USHORT U_INT;
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#define PSTR16 PSZ
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#define PTR16(x) (x)
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#endif
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typedef struct access_list
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{
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char acl_ugname[UNLEN+1];
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char acl_pad;
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USHORT acl_access;
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}
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ACCLIST;
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typedef struct access_info
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{
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PSTR16 acc_resource_name;
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USHORT acc_attr;
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USHORT acc_count;
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}
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ACCINFO;
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static ACCINFO *ai;
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static char *path, *data;
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#ifdef __32BIT__
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#ifdef __EMX__
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static USHORT (APIENTRY *_NetAccessGetInfo)(PSZ pszServer, PSZ pszResource,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer, PUSHORT pcbTotalAvail);
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static USHORT (APIENTRY *_NetAccessSetInfo)(PSZ pszServer, PSZ pszResource,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer, USHORT sParmNum);
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static USHORT (APIENTRY *_NetAccessAdd)(PSZ pszServer,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer);
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USHORT NetAccessGetInfo(PSZ pszServer, PSZ pszResource, USHORT sLevel,
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PVOID pbBuffer, USHORT cbBuffer, PUSHORT pcbTotalAvail)
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{
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return (USHORT)
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(_THUNK_PROLOG (4+4+2+4+2+4);
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_THUNK_FLAT (pszServer);
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_THUNK_FLAT (pszResource);
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_THUNK_SHORT (sLevel);
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_THUNK_FLAT (pbBuffer);
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_THUNK_SHORT (cbBuffer);
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_THUNK_FLAT (pcbTotalAvail);
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_THUNK_CALLI (_emx_32to16(_NetAccessGetInfo)));
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}
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USHORT NetAccessSetInfo(PSZ pszServer, PSZ pszResource, USHORT sLevel,
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PVOID pbBuffer, USHORT cbBuffer, USHORT sParmNum)
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{
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return (USHORT)
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(_THUNK_PROLOG (4+4+2+4+2+2);
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_THUNK_FLAT (pszServer);
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_THUNK_FLAT (pszResource);
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_THUNK_SHORT (sLevel);
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_THUNK_FLAT (pbBuffer);
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_THUNK_SHORT (cbBuffer);
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_THUNK_SHORT (sParmNum);
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_THUNK_CALLI (_emx_32to16(_NetAccessSetInfo)));
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}
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USHORT NetAccessAdd(PSZ pszServer, USHORT sLevel,
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PVOID pbBuffer, USHORT cbBuffer)
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{
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return (USHORT)
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(_THUNK_PROLOG (4+2+4+2);
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_THUNK_FLAT (pszServer);
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_THUNK_SHORT (sLevel);
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_THUNK_FLAT (pbBuffer);
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_THUNK_SHORT (cbBuffer);
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_THUNK_CALLI (_emx_32to16(_NetAccessAdd)));
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}
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#else /* other 32-bit */
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APIRET16 (* APIENTRY16 NetAccessGetInfo)(PCHAR16 pszServer, PCHAR16 pszResource,
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USHORT sLevel, PVOID16 pbBuffer, USHORT cbBuffer, PVOID16 pcbTotalAvail);
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APIRET16 (* APIENTRY16 NetAccessSetInfo)(PCHAR16 pszServer, PCHAR16 pszResource,
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USHORT sLevel, PVOID16 pbBuffer, USHORT cbBuffer, USHORT sParmNum);
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APIRET16 (* APIENTRY16 NetAccessAdd)(PCHAR16 pszServer,
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USHORT sLevel, PVOID16 pbBuffer, USHORT cbBuffer);
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#define _NetAccessGetInfo NetAccessGetInfo
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#define _NetAccessSetInfo NetAccessSetInfo
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#define _NetAccessAdd NetAccessAdd
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#if !defined(__IBMC__) || !defined(__TILED__)
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#define _tmalloc malloc
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#define _tfree free
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#endif
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#endif
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#else /* 16-bit */
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USHORT (APIENTRY *NetAccessGetInfo)(PSZ pszServer, PSZ pszResource,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer, PUSHORT pcbTotalAvail);
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USHORT (APIENTRY *NetAccessSetInfo)(PSZ pszServer, PSZ pszResource,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer, USHORT sParmNum);
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USHORT (APIENTRY *NetAccessAdd)(PSZ pszServer,
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USHORT sLevel, PVOID pbBuffer, USHORT cbBuffer);
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#define _NetAccessGetInfo NetAccessGetInfo
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#define _NetAccessSetInfo NetAccessSetInfo
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#define _NetAccessAdd NetAccessAdd
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#define _tmalloc malloc
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#define _tfree free
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#define DosQueryProcAddr(handle, ord, name, funcptr) \
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DosGetProcAddr(handle, name, funcptr)
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#define DosQueryCurrentDir DosQCurDir
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#define DosQueryCurrentDisk DosQCurDisk
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#endif
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static BOOL acl_init(void)
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{
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static BOOL initialized, netapi_avail;
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HMODULE netapi;
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char buf[256];
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if (initialized)
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return netapi_avail;
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initialized = TRUE;
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if (DosLoadModule(buf, sizeof(buf), "NETAPI", &netapi))
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return FALSE;
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if (DosQueryProcAddr(netapi, 0, "NETACCESSGETINFO", (PFN *) &_NetAccessGetInfo) ||
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DosQueryProcAddr(netapi, 0, "NETACCESSSETINFO", (PFN *) &_NetAccessSetInfo) ||
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DosQueryProcAddr(netapi, 0, "NETACCESSADD", (PFN *) &_NetAccessAdd))
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return FALSE;
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#if defined(__WATCOMC__) && defined(__386__)
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NetAccessGetInfo = (PVOID) (ULONG) (PVOID16) NetAccessGetInfo;
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NetAccessSetInfo = (PVOID) (ULONG) (PVOID16) NetAccessSetInfo;
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NetAccessAdd = (PVOID) (ULONG) (PVOID16) NetAccessAdd;
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#endif
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if ((path = _tmalloc(CCHMAXPATH)) == NULL)
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return FALSE;
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if ((data = _tmalloc(ACL_BUFFERSIZE)) == NULL)
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return FALSE;
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if ((ai = _tmalloc(sizeof(ACCINFO))) == NULL)
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return -1;
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netapi_avail = TRUE;
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return netapi_avail;
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}
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static void acl_mkpath(char *buffer, const char *source)
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{
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char *ptr;
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static char cwd[CCHMAXPATH];
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static U_INT cwdlen;
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U_INT cdrive;
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ULONG drivemap;
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if (isalpha((int)source[0]) && source[1] == ':')
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buffer[0] = 0; /* fully qualified names */
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else
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{
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if (cwd[0] == 0)
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{
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DosQueryCurrentDisk(&cdrive, &drivemap);
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cwd[0] = (char)(cdrive + '@');
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cwd[1] = ':';
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cwd[2] = '\\';
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cwdlen = sizeof(cwd) - 3;
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DosQueryCurrentDir(0, cwd + 3, &cwdlen);
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cwdlen = strlen(cwd);
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}
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if (source[0] == '/' || source[0] == '\\')
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{
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if (source[1] == '/' || source[1] == '\\')
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buffer[0] = 0; /* UNC names */
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else
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{
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strncpy(buffer, cwd, 2);
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buffer[2] = 0;
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}
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}
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else
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{
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strcpy(buffer, cwd);
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if (cwd[cwdlen - 1] != '\\' && cwd[cwdlen - 1] != '/')
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strcat(buffer, "/");
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}
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}
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strcat(buffer, source);
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for (ptr = buffer; *ptr; ptr++)
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if (*ptr == '/')
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*ptr = '\\';
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if (ptr[-1] == '\\')
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ptr[-1] = 0;
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strupr(buffer);
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}
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static int acl_bin2text(char *data, char *text)
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{
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ACCINFO *ai;
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ACCLIST *al;
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U_INT cnt, offs;
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ai = (ACCINFO *) data;
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al = (ACCLIST *) (data + sizeof(ACCINFO));
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offs = sprintf(text, "ACL1:%X,%d\n",
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ai -> acc_attr, ai -> acc_count);
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for (cnt = 0; cnt < ai -> acc_count; cnt++)
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offs += sprintf(text + offs, "%s,%X\n",
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al[cnt].acl_ugname, al[cnt].acl_access);
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return strlen(text);
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}
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int acl_get(char *server, const char *resource, char *buffer)
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{
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USHORT datalen;
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PSZ srv = NULL;
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int rc;
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if (!acl_init())
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return -1;
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if (server)
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srv = server;
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acl_mkpath(path, resource);
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datalen = 0;
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rc = NetAccessGetInfo(srv, path, 1, data, ACL_BUFFERSIZE, &datalen);
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if (rc == 0)
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acl_bin2text(data, buffer);
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return rc;
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}
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static int acl_text2bin(char *data, char *text, char *path)
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{
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ACCINFO *ai;
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ACCLIST *al;
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char *ptr, *ptr2;
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U_INT cnt;
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ai = (ACCINFO *) data;
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ai -> acc_resource_name = PTR16(path);
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if (sscanf(text, "ACL1:%hX,%hd",
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&ai -> acc_attr, &ai -> acc_count) != 2)
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return ERROR_INVALID_PARAMETER;
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al = (ACCLIST *) (data + sizeof(ACCINFO));
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ptr = strchr(text, '\n') + 1;
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for (cnt = 0; cnt < ai -> acc_count; cnt++)
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{
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ptr2 = strchr(ptr, ',');
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strncpy(al[cnt].acl_ugname, ptr, ptr2 - ptr);
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al[cnt].acl_ugname[ptr2 - ptr] = 0;
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sscanf(ptr2 + 1, "%hx", &al[cnt].acl_access);
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ptr = strchr(ptr, '\n') + 1;
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}
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return sizeof(ACCINFO) + ai -> acc_count * sizeof(ACCLIST);
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}
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int acl_set(char *server, const char *resource, char *buffer)
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{
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USHORT datalen;
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PSZ srv = NULL;
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if (!acl_init())
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return -1;
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if (server)
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srv = server;
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acl_mkpath(path, resource);
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ai -> acc_resource_name = PTR16(path);
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ai -> acc_attr = 0;
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ai -> acc_count = 0;
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NetAccessAdd(srv, 1, ai, sizeof(ACCINFO));
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/* Ignore any errors, most probably because ACL already exists. */
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/* In any such case, try updating the existing ACL. */
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datalen = acl_text2bin(data, buffer, path);
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return NetAccessSetInfo(srv, path, 1, data, datalen, 0);
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}
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/* end of os2acl.c */
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