| 1 | /* $Id: oslibdos.cpp,v 1.9 1999-11-22 20:35:50 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Wrappers for OS/2 Dos* API
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| 5 | *
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| 6 | * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * Project Odin Software License can be found in LICENSE.TXT
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| 10 | *
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| 11 | */
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| 12 | #define INCL_BASE
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| 13 | #define INCL_DOSEXCEPTIONS
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| 14 | #define INCL_DOSMEMMGR
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| 15 | #define INCL_DOSPROCESS
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| 16 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 17 | #include <stdlib.h>
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| 18 | #include <stdio.h>
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| 19 | #include <string.h>
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| 20 | #include <win32type.h>
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| 21 | #include <misc.h>
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| 22 | #include "initterm.h"
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| 23 | #include "oslibdos.h"
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| 24 |
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| 25 | APIRET APIENTRY DosAliasMem(PVOID pb, ULONG cb, PPVOID ppbAlias, ULONG fl);
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| 26 |
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| 27 | //******************************************************************************
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| 28 | //TODO: Assumes entire memory range has the same protection flags!
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| 29 | //TODO: Check if this works for code aliases...
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| 30 | //******************************************************************************
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| 31 | DWORD OSLibDosAliasMem(LPVOID pb, ULONG cb, LPVOID *ppbAlias, ULONG fl)
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| 32 | {
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| 33 | DWORD rc;
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| 34 | DWORD attr;
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| 35 | DWORD size = cb;
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| 36 |
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| 37 | cb = (cb-1) & ~0xfff;
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| 38 | cb+= PAGE_SIZE;
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| 39 |
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| 40 | rc = DosQueryMem(pb, &size, &attr);
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| 41 | if(rc) {
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| 42 | dprintf(("OSLibDosAliasMem: DosQueryMem %x %x return %d", pb, size, rc));
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| 43 | return rc;
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| 44 | }
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| 45 | size = (size-1) & ~0xfff;
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| 46 | size+= PAGE_SIZE;
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| 47 | if(size != cb) {
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| 48 | dprintf(("ERROR: OSLibDosAliasMem: size != cb (%x!=%x)!!!!!!!!", size, cb));
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| 49 | return 5;
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| 50 | }
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| 51 | attr &= (PAG_READ|PAG_WRITE|PAG_EXECUTE|PAG_GUARD|PAG_DEFAULT);
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| 52 | if(attr != fl) {
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| 53 | rc = DosSetMem(pb, size, fl);
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| 54 | if(rc) {
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| 55 | dprintf(("OSLibDosAliasMem: DosSetMem %x %x return %d", pb, size, rc));
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| 56 | attr = fl;
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| 57 | //just continue for now
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| 58 | //return rc;
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| 59 | }
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| 60 | }
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| 61 | rc = DosAliasMem(pb, cb, ppbAlias, 2);
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| 62 | if(rc) {
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| 63 | dprintf(("OSLibDosAliasMem: DosAliasMem %x %x return %d", pb, cb, rc));
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| 64 | return rc;
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| 65 | }
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| 66 | if(attr != fl) {
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| 67 | rc = DosSetMem(pb, size, attr);
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| 68 | if(rc) {
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| 69 | dprintf(("OSLibDosAliasMem: DosSetMem (2) %x %x return %d", pb, size, rc));
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| 70 | return rc;
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| 71 | }
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| 72 | }
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| 73 | return 0;
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| 74 | }
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| 75 | //******************************************************************************
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| 76 | //NT returns addresses aligned at 64k, so we do too.
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| 77 | //******************************************************************************
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| 78 | DWORD OSLibDosAllocMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags)
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| 79 | {
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| 80 | LPVOID memaddr;
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| 81 | DWORD offset;
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| 82 | APIRET rc;
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| 83 |
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| 84 | rc = DosAllocMem(&memaddr, size, PAG_READ | flAllocMem);
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| 85 | if(rc) {
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| 86 | return rc;
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| 87 | }
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| 88 | DosEnterCritSec();
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| 89 | DosFreeMem(memaddr);
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| 90 | offset = (DWORD)memaddr & 0xFFFF;
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| 91 | if(offset) {
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| 92 | DosAllocMem(&memaddr, 64*1024 - offset, PAG_READ | flAllocMem);
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| 93 | }
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| 94 | rc = DosAllocMem(lplpMemAddr, size, flags | flAllocMem);
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| 95 | DosExitCritSec();
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| 96 | if((DWORD)*lplpMemAddr & 0xFFFF) {//still not at 64k boundary?
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| 97 | DosFreeMem(*lplpMemAddr);
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| 98 | rc = OSLibDosAllocMem(lplpMemAddr, size, flags);
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| 99 | }
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| 100 | if(offset) {
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| 101 | DosFreeMem(memaddr);
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| 102 | }
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| 103 |
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| 104 | return rc;
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| 105 | }
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| 106 | //******************************************************************************
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| 107 | //******************************************************************************
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| 108 | DWORD OSLibDosFreeMem(LPVOID lpMemAddr)
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| 109 | {
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| 110 | return DosFreeMem(lpMemAddr);
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| 111 | }
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| 112 | //******************************************************************************
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| 113 | //NOTE: If name == NULL, allocated gettable unnamed shared memory
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| 114 | //******************************************************************************
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| 115 | DWORD OSLibDosAllocSharedMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags, LPSTR name)
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| 116 | {
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| 117 | APIRET rc;
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| 118 | char *sharedmemname = NULL;
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| 119 |
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| 120 | if(name) {
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| 121 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 122 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 123 | strcat(sharedmemname, name);
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| 124 | }
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| 125 | else flags |= OBJ_GETTABLE;
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| 126 |
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| 127 | rc = DosAllocSharedMem(lplpMemAddr, sharedmemname, size, flags);
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| 128 | if(name) {
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| 129 | free(sharedmemname);
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| 130 | }
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| 131 | return rc;
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| 132 | }
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| 133 | //******************************************************************************
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| 134 | //NOTE: If name == NULL, assume gettable unnamed shared memory
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| 135 | //******************************************************************************
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| 136 | DWORD OSLibDosGetNamedSharedMem(LPVOID *lplpMemAddr, LPSTR name)
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| 137 | {
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| 138 | APIRET rc;
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| 139 | char *sharedmemname = NULL;
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| 140 |
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| 141 | if(name) {
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| 142 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 143 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 144 | strcat(sharedmemname, name);
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| 145 | rc = DosGetNamedSharedMem(lplpMemAddr, sharedmemname, PAG_READ|PAG_WRITE);
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| 146 | if(name) {
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| 147 | free(sharedmemname);
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| 148 | }
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| 149 | }
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| 150 | else rc = DosGetSharedMem((LPVOID)*(DWORD *)lplpMemAddr, PAG_READ|PAG_WRITE);
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| 151 |
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| 152 | return rc;
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| 153 | }
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| 154 | //******************************************************************************
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| 155 | //******************************************************************************
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| 156 | DWORD OSLibDosQueryMem(LPVOID lpMemAddr, DWORD *lpRangeSize, DWORD *lpAttr)
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| 157 | {
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| 158 | return DosQueryMem(lpMemAddr, lpRangeSize, lpAttr);
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| 159 | }
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| 160 | //******************************************************************************
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| 161 | //******************************************************************************
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| 162 | DWORD OSLibDosSetMem(LPVOID lpMemAddr, DWORD size, DWORD flags)
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| 163 | {
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| 164 | APIRET rc;
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| 165 |
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| 166 | rc = DosSetMem(lpMemAddr, size, flags);
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| 167 | switch(rc) {
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| 168 | case ERROR_INVALID_ADDRESS:
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| 169 | return OSLIB_ERROR_INVALID_ADDRESS;
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| 170 | case ERROR_ACCESS_DENIED:
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| 171 | return OSLIB_ERROR_ACCESS_DENIED;
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| 172 | default:
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| 173 | return rc;
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| 174 | }
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| 175 | }
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| 176 | //******************************************************************************
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| 177 | //******************************************************************************
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| 178 | DWORD OSLibDosOpen(char *lpszFileName, DWORD flags)
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| 179 | {
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| 180 | APIRET rc;
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| 181 | HFILE hFile;
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| 182 | ULONG ulAction;
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| 183 | DWORD os2flags = OPEN_FLAGS_NOINHERIT;
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| 184 |
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| 185 |
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| 186 | if(flags & OSLIB_ACCESS_READONLY)
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| 187 | os2flags |= OPEN_ACCESS_READONLY;
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| 188 | else
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| 189 | if(flags & OSLIB_ACCESS_READWRITE)
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| 190 | os2flags |= OPEN_ACCESS_READWRITE;
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| 191 |
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| 192 | if(flags & OSLIB_ACCESS_SHAREDENYNONE)
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| 193 | os2flags |= OPEN_SHARE_DENYNONE;
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| 194 | else
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| 195 | if(flags & OSLIB_ACCESS_SHAREDENYREAD)
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| 196 | os2flags |= OPEN_SHARE_DENYREAD;
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| 197 | else
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| 198 | if(flags & OSLIB_ACCESS_SHAREDENYWRITE)
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| 199 | os2flags |= OPEN_SHARE_DENYWRITE;
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| 200 |
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| 201 | rc = DosOpen(lpszFileName, /* File path name */
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| 202 | &hFile, /* File handle */
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| 203 | &ulAction, /* Action taken */
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| 204 | 0L, /* File primary allocation */
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| 205 | 0L, /* File attribute */
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| 206 | OPEN_ACTION_FAIL_IF_NEW |
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| 207 | OPEN_ACTION_OPEN_IF_EXISTS, /* Open function type */
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| 208 | os2flags,
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| 209 | 0L); /* No extended attribute */
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| 210 |
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| 211 | if(rc) {
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| 212 | return 0;
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| 213 | }
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| 214 | else return hFile;
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| 215 | }
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| 216 | //******************************************************************************
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| 217 | //******************************************************************************
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| 218 | DWORD OSLibDosClose(DWORD hFile)
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| 219 | {
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| 220 | return DosClose(hFile);
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| 221 | }
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| 222 | //******************************************************************************
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| 223 | //******************************************************************************
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| 224 | DWORD OSLibDosRead(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesRead)
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| 225 | {
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| 226 | return DosRead(hFile, lpBuffer, size, nrBytesRead);
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| 227 | }
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| 228 | //******************************************************************************
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| 229 | //******************************************************************************
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| 230 | DWORD OSLibDosWrite(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesWritten)
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| 231 | {
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| 232 | return DosWrite(hFile, lpBuffer, size, nrBytesWritten);
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| 233 | }
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| 234 | //******************************************************************************
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| 235 | //******************************************************************************
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| 236 | DWORD OSLibDosSetFilePtr(DWORD hFile, DWORD offset, DWORD method)
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| 237 | {
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| 238 | DWORD os2method;
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| 239 | DWORD newoffset;
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| 240 | APIRET rc;
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| 241 |
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| 242 | switch(method) {
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| 243 | case OSLIB_SETPTR_FILE_CURRENT:
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| 244 | os2method = FILE_CURRENT;
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| 245 | break;
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| 246 | case OSLIB_SETPTR_FILE_BEGIN:
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| 247 | os2method = FILE_BEGIN ;
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| 248 | break;
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| 249 | case OSLIB_SETPTR_FILE_END:
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| 250 | os2method = FILE_END;
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| 251 | break;
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| 252 | default:
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| 253 | return OSLIB_ERROR_INVALID_PARAMETER;
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| 254 | }
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| 255 | rc = DosSetFilePtr(hFile, offset, os2method, &newoffset);
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| 256 | if(rc) {
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| 257 | return -1;
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| 258 | }
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| 259 | else return newoffset;
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| 260 | }
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| 261 | //******************************************************************************
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| 262 | //******************************************************************************
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| 263 | //@@@PH Note: this routine is nothing but a QUICK'N'DIRTY HACK!
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| 264 | //@@@PH this function should be implemented accordingly to NTDLL's
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| 265 | // RtlSecondsSince1980ToTime
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| 266 | // RtlTimeToSecondsSince1980
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| 267 | static void iFDATEFTIME2FILETIME(FDATE fdOS2, FTIME ftOS2, LPFILETIME pftWin32)
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| 268 | {
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| 269 | float f;
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| 270 | #define facSECOND 2 // as encoded in OS/2
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| 271 | #define facMINUTE 60
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| 272 | #define facHOUR 3600
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| 273 | #define facDAY 86400
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| 274 | #define facMONTH facDAY * 30 // cough, cough :)
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| 275 | #define facYEAR facDAY * 365
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| 276 |
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| 277 | /* pftWin32 is 100ns based from 01.01.1601 00:00:00 */
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| 278 | f = (fdOS2.year + 379) * facYEAR // 1980 - 1601
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| 279 | + (fdOS2.month - 0 ) * facMONTH
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| 280 | + (fdOS2.day - 1 ) * facDAY
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| 281 | + (ftOS2.hours ) * facHOUR
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| 282 | + (ftOS2.minutes ) * facMINUTE
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| 283 | + (ftOS2.twosecs ) * facSECOND;
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| 284 |
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| 285 | f *= 10000; // convert to 100ns base
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| 286 | pftWin32->dwHighDateTime = (f / (float)(0xffffffff) );
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| 287 | pftWin32->dwLowDateTime = (f - (float)((float)pftWin32->dwHighDateTime *
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| 288 | (float)0xffffffff) );
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| 289 | }
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| 290 |
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| 291 | BOOL OSLibDosGetFileAttributesEx(PSZ pszName,
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| 292 | ULONG ulDummy,
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| 293 | PVOID pBuffer)
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| 294 | {
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| 295 | APIRET rc; /* API return code */
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| 296 | FILESTATUS3 fs3; /* file information structure */
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| 297 | LPWIN32_FILE_ATTRIBUTE_DATA lpFad = (LPWIN32_FILE_ATTRIBUTE_DATA) pBuffer;
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| 298 |
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| 299 | // Note: we only handle standard "GetFileExInfoStandard" requests
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| 300 | rc = DosQueryPathInfo(pszName, /* query the file information */
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| 301 | FIL_STANDARD,
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| 302 | &fs3,
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| 303 | sizeof(fs3));
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| 304 | if (rc != NO_ERROR) /* check for errors */
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| 305 | return FALSE; /* raise error condition */
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| 306 |
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| 307 | // convert structure
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| 308 | lpFad->dwFileAttributes = fs3.attrFile; // directly interchangeable
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| 309 | iFDATEFTIME2FILETIME(fs3.fdateCreation, fs3.ftimeCreation, &lpFad->ftCreationTime);
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| 310 | iFDATEFTIME2FILETIME(fs3.fdateLastAccess, fs3.ftimeLastAccess, &lpFad->ftLastAccessTime);
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| 311 | iFDATEFTIME2FILETIME(fs3.fdateLastWrite, fs3.ftimeLastWrite, &lpFad->ftLastWriteTime);
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| 312 |
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| 313 | /* @@@PH we might add Aurora support ...
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| 314 | lpFad->nFileSizeHigh = info.nFileSizeHigh;
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| 315 | */
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| 316 | lpFad->nFileSizeHigh = 0;
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| 317 | lpFad->nFileSizeLow = fs3.cbFile;
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| 318 |
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| 319 | return TRUE;
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| 320 | }
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| 321 | //******************************************************************************
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| 322 | //******************************************************************************
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| 323 | DWORD OSLibDosSearchPath(DWORD cmd, char *path, char *name, char *full_name,
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| 324 | DWORD length_fullname)
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| 325 | {
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| 326 | switch(cmd) {
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| 327 | case OSLIB_SEARCHDIR:
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| 328 | if(DosSearchPath(SEARCH_IGNORENETERRS, path,
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| 329 | name, full_name, length_fullname) != 0) {
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| 330 | return 0;
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| 331 | }
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| 332 | return strlen(full_name);
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| 333 |
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| 334 |
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| 335 | case OSLIB_SEARCHCURDIR:
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| 336 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_CUR_DIRECTORY, path,
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| 337 | name, full_name, length_fullname) != 0) {
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| 338 | return 0;
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| 339 | }
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| 340 | return strlen(full_name);
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| 341 |
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| 342 | case OSLIB_SEARCHFILE:
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| 343 | {
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| 344 | FILESTATUS3 fileinfo;
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| 345 |
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| 346 | if(DosQueryPathInfo(name, FIL_STANDARD, &fileinfo, sizeof(fileinfo)) != 0) {
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| 347 | return 0;
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| 348 | }
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| 349 | strncpy(full_name, name, length_fullname);
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| 350 | return strlen(full_name);
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| 351 | }
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| 352 |
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| 353 | case OSLIB_SEARCHENV:
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| 354 | {
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| 355 | char *env = getenv(path);
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| 356 | if(env == NULL)
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| 357 | return 0;
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| 358 |
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| 359 | while(*env != '=') env++;
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| 360 | env++;
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| 361 | while(*env == ' ') env++;
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| 362 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_ENVIRONMENT, env,
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| 363 | name, full_name, length_fullname) != 0) {
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| 364 | return 0;
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| 365 | }
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| 366 | return strlen(full_name);
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| 367 | }
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| 368 | }
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| 369 | return 0;
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| 370 | }
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| 371 | //******************************************************************************
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| 372 | //******************************************************************************
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| 373 | DWORD OSLibDosCreate(CHAR *lpFileName,
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| 374 | DWORD dwAccess,
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| 375 | DWORD dwShare,
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| 376 | LPSECURITY_ATTRIBUTES lpSecurityAttributes,
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| 377 | DWORD dwCreation,
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| 378 | DWORD dwFlags,
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| 379 | HANDLE hTemplate,
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| 380 | DWORD *dwFile)
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| 381 | {
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| 382 | APIRET rc;
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| 383 | HFILE hFile;
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| 384 | ULONG ulAction=0;
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| 385 | DWORD os2Attrib=0;
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| 386 | DWORD os2Flags = 0; //OPEN_FLAGS_NOINHERIT;
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| 387 | DWORD os2Open=0;
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| 388 |
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| 389 | #define GENERIC_READ 0x80000000
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| 390 | #define GENERIC_WRITE 0x40000000
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| 391 | if(dwAccess == (GENERIC_READ | GENERIC_WRITE))
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| 392 | os2Flags |= OPEN_ACCESS_READWRITE;
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| 393 | else if(dwAccess & GENERIC_WRITE)
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| 394 | os2Flags |= OPEN_ACCESS_WRITEONLY;
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| 395 | else if(dwAccess & GENERIC_READ)
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| 396 | os2Flags |= OPEN_ACCESS_READONLY;
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| 397 |
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| 398 | #define FILE_SHARE_READ 0x00000001L
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| 399 | #define FILE_SHARE_WRITE 0x00000002L
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| 400 | if(dwShare == 0)
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| 401 | os2Flags |= OPEN_SHARE_DENYREADWRITE;
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| 402 | else if(dwShare == (FILE_SHARE_READ | FILE_SHARE_WRITE))
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| 403 | os2Flags |= OPEN_SHARE_DENYNONE;
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| 404 | else if(dwShare & FILE_SHARE_READ)
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| 405 | os2Flags |= OPEN_SHARE_DENYWRITE;
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| 406 | else if(dwShare & FILE_SHARE_WRITE)
|
|---|
| 407 | os2Flags |= OPEN_SHARE_DENYREAD;
|
|---|
| 408 |
|
|---|
| 409 | #define CREATE_NEW 1
|
|---|
| 410 | #define CREATE_ALWAYS 2
|
|---|
| 411 | #define OPEN_EXISTING 3
|
|---|
| 412 | #define OPEN_ALWAYS 4
|
|---|
| 413 | #define TRUNCATE_EXISTING 5
|
|---|
| 414 | if(dwCreation == CREATE_NEW)
|
|---|
| 415 | os2Open = OPEN_ACTION_FAIL_IF_EXISTS | OPEN_ACTION_CREATE_IF_NEW;
|
|---|
| 416 | else if(dwCreation == CREATE_ALWAYS)
|
|---|
| 417 | os2Open = OPEN_ACTION_REPLACE_IF_EXISTS | OPEN_ACTION_CREATE_IF_NEW;
|
|---|
| 418 | else if(dwCreation == OPEN_EXISTING)
|
|---|
| 419 | os2Open = OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_FAIL_IF_NEW;
|
|---|
| 420 | else if(dwCreation == OPEN_ALWAYS)
|
|---|
| 421 | os2Open = OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_CREATE_IF_NEW;
|
|---|
| 422 | else if(dwCreation == TRUNCATE_EXISTING)
|
|---|
| 423 | os2Open = OPEN_ACTION_REPLACE_IF_EXISTS;// |OPEN_ACTION_FAIL_IF_NEW;
|
|---|
| 424 |
|
|---|
| 425 | #define FILE_ATTRIBUTE_READONLY 0x00000001L
|
|---|
| 426 | #define FILE_ATTRIBUTE_HIDDEN 0x00000002L
|
|---|
| 427 | #define FILE_ATTRIBUTE_SYSTEM 0x00000004L
|
|---|
| 428 | #define FILE_ATTRIBUTE_DIRECTORY 0x00000010L
|
|---|
| 429 | #define FILE_ATTRIBUTE_ARCHIVE 0x00000020L
|
|---|
| 430 | #define FILE_ATTRIBUTE_NORMAL 0x00000080L
|
|---|
| 431 | #define FILE_ATTRIBUTE_TEMPORARY 0x00000100L
|
|---|
| 432 | if(dwFlags & FILE_ATTRIBUTE_READONLY)
|
|---|
| 433 | os2Attrib |= FILE_READONLY;
|
|---|
| 434 | if(dwFlags & FILE_ATTRIBUTE_HIDDEN)
|
|---|
| 435 | os2Attrib |= FILE_HIDDEN;
|
|---|
| 436 | if(dwFlags & FILE_ATTRIBUTE_SYSTEM)
|
|---|
| 437 | os2Attrib |= FILE_SYSTEM;
|
|---|
| 438 | if(dwFlags & FILE_ATTRIBUTE_DIRECTORY)
|
|---|
| 439 | os2Attrib |= FILE_DIRECTORY;
|
|---|
| 440 | if(dwFlags & FILE_ATTRIBUTE_ARCHIVE)
|
|---|
| 441 | os2Attrib |= FILE_ARCHIVED;
|
|---|
| 442 | if(dwFlags & FILE_ATTRIBUTE_NORMAL)
|
|---|
| 443 | os2Attrib |= FILE_NORMAL;
|
|---|
| 444 |
|
|---|
| 445 | #define FILE_FLAG_WRITE_THROUGH 0x80000000UL
|
|---|
| 446 | #define FILE_FLAG_OVERLAPPED 0x40000000L
|
|---|
| 447 | #define FILE_FLAG_NO_BUFFERING 0x20000000L
|
|---|
| 448 | #define FILE_FLAG_RANDOM_ACCESS 0x10000000L
|
|---|
| 449 | #define FILE_FLAG_SEQUENTIAL_SCAN 0x08000000L
|
|---|
| 450 | #define FILE_FLAG_DELETE_ON_CLOSE 0x04000000L
|
|---|
| 451 | #define FILE_FLAG_BACKUP_SEMANTICS 0x02000000L
|
|---|
| 452 | #define FILE_FLAG_POSIX_SEMANTICS 0x01000000L
|
|---|
| 453 | if(dwFlags & FILE_FLAG_WRITE_THROUGH)
|
|---|
| 454 | os2Flags |= OPEN_FLAGS_WRITE_THROUGH;
|
|---|
| 455 | if(dwFlags & FILE_FLAG_NO_BUFFERING)
|
|---|
| 456 | os2Flags |= OPEN_FLAGS_NO_CACHE;
|
|---|
| 457 | if(dwFlags & FILE_FLAG_RANDOM_ACCESS)
|
|---|
| 458 | os2Flags |= OPEN_FLAGS_RANDOM;
|
|---|
| 459 | if(dwFlags & FILE_FLAG_SEQUENTIAL_SCAN)
|
|---|
| 460 | os2Flags |= OPEN_FLAGS_SEQUENTIAL;
|
|---|
| 461 |
|
|---|
| 462 | // TODO:
|
|---|
| 463 | // if(dwFlags & FILE_FLAG_OVERLAPPED)
|
|---|
| 464 | // if(dwFlags & FILE_FLAG_DELETE_ON_CLOSE
|
|---|
| 465 |
|
|---|
| 466 | rc = DosOpen(lpFileName, &hFile, &ulAction, 0,
|
|---|
| 467 | os2Attrib, os2Open, os2Flags, 0);
|
|---|
| 468 |
|
|---|
| 469 | if(rc)
|
|---|
| 470 | {
|
|---|
| 471 | // TODO: TEST TEST
|
|---|
| 472 | dprintf(("DosOpen Error rc:%d, try without GENERIC_WRITE", rc));
|
|---|
| 473 | if(dwAccess & GENERIC_WRITE)
|
|---|
| 474 | os2Flags &= ~(OPEN_ACCESS_READWRITE | OPEN_ACCESS_WRITEONLY);
|
|---|
| 475 | rc = DosOpen(lpFileName, &hFile, &ulAction, 0,
|
|---|
| 476 | os2Attrib, os2Open, os2Flags, 0);
|
|---|
| 477 | if(rc)
|
|---|
| 478 | {
|
|---|
| 479 | dprintf(("DosOpen Error rc:%d os2Attrib:%X os2Open:%X os2Flags:%X",
|
|---|
| 480 | rc, os2Attrib, os2Open, os2Flags));
|
|---|
| 481 | hFile = -1;
|
|---|
| 482 | }
|
|---|
| 483 | }
|
|---|
| 484 |
|
|---|
| 485 | *dwFile = hFile;
|
|---|
| 486 | return rc;
|
|---|
| 487 | }
|
|---|
| 488 | //******************************************************************************
|
|---|
| 489 | //(without changing file pointer)
|
|---|
| 490 | //******************************************************************************
|
|---|
| 491 | DWORD OSLibDosGetFileSize(DWORD hFile)
|
|---|
| 492 | {
|
|---|
| 493 | FILESTATUS3 fsts3ConfigInfo = {{0}};
|
|---|
| 494 | ULONG ulBufSize = sizeof(FILESTATUS3);
|
|---|
| 495 |
|
|---|
| 496 | DosQueryFileInfo(hFile, FIL_STANDARD, &fsts3ConfigInfo, ulBufSize);
|
|---|
| 497 | return fsts3ConfigInfo.cbFile;
|
|---|
| 498 | }
|
|---|
| 499 | //******************************************************************************
|
|---|
| 500 | //******************************************************************************
|
|---|
| 501 | DWORD OSLibDosSetFilePtr2(DWORD hFile, DWORD offset, DWORD method)
|
|---|
| 502 | {
|
|---|
| 503 | DWORD newoffset;
|
|---|
| 504 | APIRET rc;
|
|---|
| 505 |
|
|---|
| 506 |
|
|---|
| 507 | rc = DosSetFilePtr(hFile, offset, method, &newoffset);
|
|---|
| 508 | if(rc) {
|
|---|
| 509 | dprintf(("DosSetFilePtr Error rc:%d", rc));
|
|---|
| 510 | return -1;
|
|---|
| 511 | }
|
|---|
| 512 | else return newoffset;
|
|---|
| 513 | }
|
|---|
| 514 | //******************************************************************************
|
|---|
| 515 | //(FlushBuffer)
|
|---|
| 516 | //******************************************************************************
|
|---|
| 517 | DWORD OSLibDosResetBuffer(DWORD hFile)
|
|---|
| 518 | {
|
|---|
| 519 | return DosResetBuffer(hFile);
|
|---|
| 520 | }
|
|---|
| 521 | //******************************************************************************
|
|---|
| 522 | //******************************************************************************
|
|---|
| 523 | DWORD OSLibDosDupHandle(DWORD hFile, DWORD *hNew)
|
|---|
| 524 | {
|
|---|
| 525 | *hNew = -1;
|
|---|
| 526 | return DosDupHandle(hFile, hNew);
|
|---|
| 527 | }
|
|---|
| 528 | //******************************************************************************
|
|---|
| 529 | //******************************************************************************
|
|---|
