353 lines
11 KiB
C
353 lines
11 KiB
C
#ifndef WINELIB
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/*
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*
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* Copyright 1993 Robert J. Amstadt
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* Copyright 1995 Alexandre Julliard
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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 <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "windows.h"
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#include "arch.h"
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#include "dos_fs.h"
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#include "global.h"
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#include "ldt.h"
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#include "module.h"
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#include "neexe.h"
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#include "resource.h"
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#include "stddebug.h"
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#include "debug.h"
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/***********************************************************************
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* NE_FindNameTableId
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*
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* Find the type and resource id from their names.
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* Return value is MAKELONG( typeId, resId ), or 0 if not found.
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*/
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static DWORD NE_FindNameTableId( HMODULE16 hModule, SEGPTR typeId, SEGPTR resId )
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{
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NE_MODULE *pModule;
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NE_TYPEINFO *pTypeInfo;
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NE_NAMEINFO *pNameInfo;
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HGLOBAL handle;
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WORD *p;
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DWORD ret = 0;
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int count;
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if (!(pModule = MODULE_GetPtr( hModule ))) return 0;
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pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
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for (; pTypeInfo->type_id != 0;
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pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo+1) +
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pTypeInfo->count * sizeof(NE_NAMEINFO)))
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{
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if (pTypeInfo->type_id != 0x800f) continue;
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pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
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for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
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{
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dprintf_resource( stddeb, "NameTable entry: type=%04x id=%04x\n",
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pTypeInfo->type_id, pNameInfo->id );
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handle = LoadResource16( hModule,
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(HANDLE)((int)pNameInfo - (int)pModule) );
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for(p = (WORD*)LockResource16(handle); p && *p; p = (WORD *)((char*)p+*p))
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{
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dprintf_resource( stddeb," type=%04x '%s' id=%04x '%s'\n",
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p[1], (char *)(p+3), p[2],
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(char *)(p+3)+strlen((char *)(p+3))+1 );
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/* Check for correct type */
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if (p[1] & 0x8000)
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{
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if (!HIWORD(typeId)) continue;
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if (lstrcmpi32A( (char *)PTR_SEG_TO_LIN(typeId),
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(char *)(p + 3) )) continue;
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}
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else if (HIWORD(typeId) || ((typeId & ~0x8000)!= p[1]))
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continue;
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/* Now check for the id */
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if (p[2] & 0x8000)
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{
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if (!HIWORD(resId)) continue;
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if (lstrcmpi32A( (char *)PTR_SEG_TO_LIN(resId),
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(char*)(p+3)+strlen((char*)(p+3))+1 )) continue;
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}
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else if (HIWORD(resId) || ((resId & ~0x8000) != p[2]))
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continue;
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/* If we get here, we've found the entry */
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dprintf_resource( stddeb, " Found!\n" );
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ret = MAKELONG( p[1], p[2] );
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break;
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}
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FreeResource16( handle );
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if (ret) return ret;
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}
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}
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return 0;
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}
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/***********************************************************************
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* NE_FindResourceFromType
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*
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* Find a resource once the type info structure has been found.
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*/
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static HRSRC NE_FindResourceFromType( NE_MODULE *pModule,
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NE_TYPEINFO *pTypeInfo, SEGPTR resId )
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{
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BYTE *p;
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int count;
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NE_NAMEINFO *pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
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if (HIWORD(resId) != 0) /* Named resource */
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{
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char *str = (char *)PTR_SEG_TO_LIN( resId );
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BYTE len = strlen( str );
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for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
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{
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if (pNameInfo->id & 0x8000) continue;
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p = (BYTE *)pModule + pModule->res_table + pNameInfo->id;
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if ((*p == len) && !lstrncmpi32A( p+1, str, len ))
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return (HRSRC)((int)pNameInfo - (int)pModule);
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}
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}
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else /* Numeric resource id */
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{
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WORD id = LOWORD(resId) | 0x8000;
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for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
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if (pNameInfo->id == id)
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return (HRSRC)((int)pNameInfo - (int)pModule);
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}
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return 0;
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}
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/***********************************************************************
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* NE_FindResource
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*/
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HRSRC NE_FindResource( HMODULE16 hModule, SEGPTR typeId, SEGPTR resId )
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{
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NE_TYPEINFO *pTypeInfo;
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HRSRC hRsrc;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return 0;
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pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
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if (HIWORD(typeId) || HIWORD(resId))
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{
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/* Search the names in the nametable */
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DWORD id = NE_FindNameTableId( hModule, typeId, resId );
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if (id) /* found */
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{
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typeId = LOWORD(id);
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resId = HIWORD(id);
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}
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}
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if (HIWORD(typeId) != 0) /* Named type */
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{
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char *str = (char *)PTR_SEG_TO_LIN( typeId );
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BYTE len = strlen( str );
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while (pTypeInfo->type_id)
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{
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if (!(pTypeInfo->type_id & 0x8000))
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{
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BYTE *p = (BYTE*)pModule+pModule->res_table+pTypeInfo->type_id;
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if ((*p == len) && !lstrncmpi32A( p+1, str, len ))
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{
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dprintf_resource( stddeb, " Found type '%s'\n", str );
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hRsrc = NE_FindResourceFromType(pModule, pTypeInfo, resId);
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if (hRsrc)
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{
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dprintf_resource( stddeb, " Found id %08lx\n", resId );
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return hRsrc;
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}
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dprintf_resource( stddeb, " Not found, going on\n" );
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}
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}
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dprintf_resource( stddeb, " Skipping type %04x\n",
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pTypeInfo->type_id );
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pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo+1) +
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pTypeInfo->count * sizeof(NE_NAMEINFO));
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}
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}
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else /* Numeric type id */
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{
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WORD id = LOWORD(typeId) | 0x8000;
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while (pTypeInfo->type_id)
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{
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if (pTypeInfo->type_id == id)
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{
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dprintf_resource( stddeb, " Found type %04x\n", id );
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hRsrc = NE_FindResourceFromType( pModule, pTypeInfo, resId );
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if (hRsrc)
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{
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dprintf_resource( stddeb, " Found id %08lx\n", resId );
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return hRsrc;
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}
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dprintf_resource( stddeb, " Not found, going on\n" );
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}
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dprintf_resource( stddeb, " Skipping type %04x\n",
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pTypeInfo->type_id );
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pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo+1) +
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pTypeInfo->count * sizeof(NE_NAMEINFO));
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}
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}
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return 0;
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}
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/***********************************************************************
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* NE_AllocResource
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*/
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HGLOBAL NE_AllocResource( HMODULE16 hModule, HRSRC hRsrc, DWORD size )
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{
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NE_NAMEINFO *pNameInfo=NULL;
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WORD sizeShift;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return 0;
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sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
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#ifndef WINELIB
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pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
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#endif
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if (size < (DWORD)pNameInfo->length << sizeShift)
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size = (DWORD)pNameInfo->length << sizeShift;
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return GLOBAL_Alloc( GMEM_FIXED, size, hModule, FALSE, FALSE, FALSE );
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}
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/***********************************************************************
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* NE_AccessResource
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*/
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int NE_AccessResource( HMODULE16 hModule, HRSRC hRsrc )
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{
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NE_NAMEINFO *pNameInfo=NULL;
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int fd;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return -1;
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#ifndef WINELIB
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pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
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#endif
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if ((fd = _lopen( NE_MODULE_NAME(pModule), OF_READ )) != -1)
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{
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WORD sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
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_llseek( fd, (int)pNameInfo->offset << sizeShift, SEEK_SET );
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}
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return fd;
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}
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/***********************************************************************
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* NE_SizeofResource
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*/
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DWORD NE_SizeofResource( HMODULE16 hModule, HRSRC hRsrc )
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{
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NE_NAMEINFO *pNameInfo=NULL;
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WORD sizeShift;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return 0;
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sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
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#ifndef WINELIB
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pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
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#endif
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return (DWORD)pNameInfo->length << sizeShift;
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}
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/***********************************************************************
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* NE_LoadResource
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*/
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HGLOBAL NE_LoadResource( HMODULE16 hModule, HRSRC hRsrc )
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{
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NE_NAMEINFO *pNameInfo=NULL;
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WORD sizeShift;
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int fd;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return 0;
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#ifndef WINELIB
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pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
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#endif
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if (pNameInfo->handle)
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{
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pNameInfo->usage++;
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dprintf_resource( stddeb, " Already loaded, new count=%d\n",
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pNameInfo->usage );
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return pNameInfo->handle;
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}
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sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
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dprintf_resource( stddeb, " Loading, pos=%d, len=%d\n",
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(int)pNameInfo->offset << sizeShift,
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(int)pNameInfo->length << sizeShift );
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if ((fd = MODULE_OpenFile( hModule )) == -1) return 0;
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pNameInfo->handle = NE_AllocResource( hModule, hRsrc, 0 );
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pNameInfo->usage = 1;
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lseek( fd, (int)pNameInfo->offset << sizeShift, SEEK_SET );
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read( fd, GlobalLock16( pNameInfo->handle ),
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(int)pNameInfo->length << sizeShift );
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return pNameInfo->handle;
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}
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/***********************************************************************
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* NE_LockResource
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*/
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SEGPTR NE_LockResource( HMODULE16 hModule, HGLOBAL handle )
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{
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/* May need to reload the resource if discarded */
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return (SEGPTR)WIN16_GlobalLock16( handle );
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}
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/***********************************************************************
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* NE_FreeResource
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*/
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BOOL NE_FreeResource( HMODULE16 hModule, HGLOBAL handle )
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{
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NE_TYPEINFO *pTypeInfo;
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NE_NAMEINFO *pNameInfo;
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WORD count;
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NE_MODULE *pModule = MODULE_GetPtr( hModule );
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if (!pModule || !pModule->res_table) return handle;
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pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
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while (pTypeInfo->type_id)
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{
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pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
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for (count = pTypeInfo->count; count > 0; count--)
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{
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if (pNameInfo->handle == handle)
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{
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if (pNameInfo->usage > 0) pNameInfo->usage--;
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if (pNameInfo->usage == 0)
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{
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GlobalFree16( pNameInfo->handle );
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pNameInfo->handle = 0;
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}
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return 0;
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}
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pNameInfo++;
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}
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pTypeInfo = (NE_TYPEINFO *)pNameInfo;
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}
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fprintf( stderr, "NE_FreeResource: %04x %04x not found!\n", hModule, handle );
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return handle;
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}
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#endif /* WINELIB */
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