| 1 | /* $Id: oslibdos.cpp,v 1.7 1999-11-10 14:16:01 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 | //******************************************************************************
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| 29 | DWORD OSLibDosAliasMem(LPVOID pb, ULONG cb, LPVOID *ppbAlias, ULONG fl)
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| 30 | {
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| 31 | return DosAliasMem(pb, cb, ppbAlias, fl);
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| 32 | }
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| 33 | //******************************************************************************
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| 34 | //NT returns addresses aligned at 64k, so we do too.
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| 35 | //******************************************************************************
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| 36 | DWORD OSLibDosAllocMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags)
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| 37 | {
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| 38 | LPVOID memaddr;
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| 39 | DWORD offset;
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| 40 | APIRET rc;
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| 41 |
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| 42 | rc = DosAllocMem(&memaddr, size, PAG_READ | flAllocMem);
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| 43 | if(rc) {
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| 44 | return rc;
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| 45 | }
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| 46 | DosEnterCritSec();
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| 47 | DosFreeMem(memaddr);
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| 48 | offset = (DWORD)memaddr & 0xFFFF;
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| 49 | if(offset) {
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| 50 | DosAllocMem(&memaddr, 64*1024 - offset, PAG_READ | flAllocMem);
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| 51 | }
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| 52 | rc = DosAllocMem(lplpMemAddr, size, flags | flAllocMem);
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| 53 | DosExitCritSec();
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| 54 | if((DWORD)*lplpMemAddr & 0xFFFF) {//still not at 64k boundary?
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| 55 | DosFreeMem(*lplpMemAddr);
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| 56 | rc = OSLibDosAllocMem(lplpMemAddr, size, flags);
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| 57 | }
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| 58 | if(offset) {
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| 59 | DosFreeMem(memaddr);
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| 60 | }
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| 61 |
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| 62 | return rc;
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| 63 | }
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| 64 | //******************************************************************************
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| 65 | //******************************************************************************
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| 66 | DWORD OSLibDosFreeMem(LPVOID lpMemAddr)
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| 67 | {
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| 68 | return DosFreeMem(lpMemAddr);
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| 69 | }
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| 70 | //******************************************************************************
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| 71 | //NOTE: If name == NULL, allocated gettable unnamed shared memory
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| 72 | //******************************************************************************
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| 73 | DWORD OSLibDosAllocSharedMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags, LPSTR name)
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| 74 | {
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| 75 | APIRET rc;
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| 76 | char *sharedmemname = NULL;
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| 77 |
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| 78 | if(name) {
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| 79 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 80 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 81 | strcat(sharedmemname, name);
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| 82 | }
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| 83 | else flags |= OBJ_GETTABLE;
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| 84 |
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| 85 | rc = DosAllocSharedMem(lplpMemAddr, sharedmemname, size, flags);
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| 86 | if(name) {
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| 87 | free(sharedmemname);
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| 88 | }
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| 89 | return rc;
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| 90 | }
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| 91 | //******************************************************************************
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| 92 | //NOTE: If name == NULL, assume gettable unnamed shared memory
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| 93 | //******************************************************************************
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| 94 | DWORD OSLibDosGetNamedSharedMem(LPVOID *lplpMemAddr, LPSTR name)
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| 95 | {
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| 96 | APIRET rc;
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| 97 | char *sharedmemname = NULL;
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| 98 |
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| 99 | if(name) {
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| 100 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 101 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 102 | strcat(sharedmemname, name);
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| 103 | rc = DosGetNamedSharedMem(lplpMemAddr, sharedmemname, PAG_READ|PAG_WRITE);
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| 104 | if(name) {
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| 105 | free(sharedmemname);
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| 106 | }
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| 107 | }
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| 108 | else rc = DosGetSharedMem((LPVOID)*(DWORD *)lplpMemAddr, PAG_READ|PAG_WRITE);
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| 109 |
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| 110 | return rc;
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| 111 | }
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| 112 | //******************************************************************************
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| 113 | //******************************************************************************
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| 114 | DWORD OSLibDosQueryMem(LPVOID lpMemAddr, DWORD *lpRangeSize, DWORD *lpAttr)
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| 115 | {
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| 116 | return DosQueryMem(lpMemAddr, lpRangeSize, lpAttr);
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| 117 | }
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| 118 | //******************************************************************************
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| 119 | //******************************************************************************
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| 120 | DWORD OSLibDosSetMem(LPVOID lpMemAddr, DWORD size, DWORD flags)
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| 121 | {
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| 122 | APIRET rc;
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| 123 |
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| 124 | rc = DosSetMem(lpMemAddr, size, flags);
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| 125 | switch(rc) {
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| 126 | case ERROR_INVALID_ADDRESS:
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| 127 | return OSLIB_ERROR_INVALID_ADDRESS;
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| 128 | case ERROR_ACCESS_DENIED:
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| 129 | return OSLIB_ERROR_ACCESS_DENIED;
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| 130 | default:
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| 131 | return rc;
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| 132 | }
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| 133 | }
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| 134 | //******************************************************************************
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| 135 | //******************************************************************************
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| 136 | DWORD OSLibDosOpen(char *lpszFileName, DWORD flags)
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| 137 | {
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| 138 | APIRET rc;
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| 139 | HFILE hFile;
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| 140 | ULONG ulAction;
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| 141 | DWORD os2flags = OPEN_FLAGS_NOINHERIT;
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| 142 |
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| 143 |
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| 144 | if(flags & OSLIB_ACCESS_READONLY)
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| 145 | os2flags |= OPEN_ACCESS_READONLY;
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| 146 | else
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| 147 | if(flags & OSLIB_ACCESS_READWRITE)
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| 148 | os2flags |= OPEN_ACCESS_READWRITE;
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| 149 |
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| 150 | if(flags & OSLIB_ACCESS_SHAREDENYNONE)
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| 151 | os2flags |= OPEN_SHARE_DENYNONE;
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| 152 | else
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| 153 | if(flags & OSLIB_ACCESS_SHAREDENYREAD)
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| 154 | os2flags |= OPEN_SHARE_DENYREAD;
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| 155 | else
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| 156 | if(flags & OSLIB_ACCESS_SHAREDENYWRITE)
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| 157 | os2flags |= OPEN_SHARE_DENYWRITE;
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| 158 |
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| 159 | rc = DosOpen(lpszFileName, /* File path name */
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| 160 | &hFile, /* File handle */
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| 161 | &ulAction, /* Action taken */
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| 162 | 0L, /* File primary allocation */
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| 163 | 0L, /* File attribute */
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| 164 | OPEN_ACTION_FAIL_IF_NEW |
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| 165 | OPEN_ACTION_OPEN_IF_EXISTS, /* Open function type */
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| 166 | os2flags,
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| 167 | 0L); /* No extended attribute */
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| 168 |
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| 169 | if(rc) {
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| 170 | return 0;
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| 171 | }
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| 172 | else return hFile;
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| 173 | }
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| 174 | //******************************************************************************
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| 175 | //******************************************************************************
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| 176 | DWORD OSLibDosClose(DWORD hFile)
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| 177 | {
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| 178 | return DosClose(hFile);
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| 179 | }
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| 180 | //******************************************************************************
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| 181 | //******************************************************************************
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| 182 | DWORD OSLibDosGetFileSize(DWORD hFile)
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| 183 | {
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| 184 | ULONG ulLocal, filesize = 0;
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| 185 |
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| 186 | DosSetFilePtr(hFile, 0L, FILE_BEGIN, &ulLocal);
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| 187 | DosSetFilePtr(hFile, 0L, FILE_END, &filesize);
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| 188 | DosSetFilePtr(hFile, 0L, FILE_BEGIN, &ulLocal);
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| 189 | return filesize;
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| 190 | }
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| 191 | //******************************************************************************
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| 192 | //******************************************************************************
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| 193 | DWORD OSLibDosRead(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesRead)
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| 194 | {
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| 195 | return DosRead(hFile, lpBuffer, size, nrBytesRead);
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| 196 | }
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| 197 | //******************************************************************************
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| 198 | //******************************************************************************
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| 199 | DWORD OSLibDosWrite(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesWritten)
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| 200 | {
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| 201 | return DosWrite(hFile, lpBuffer, size, nrBytesWritten);
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| 202 | }
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| 203 | //******************************************************************************
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| 204 | //******************************************************************************
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| 205 | DWORD OSLibDosSetFilePtr(DWORD hFile, DWORD offset, DWORD method)
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| 206 | {
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| 207 | DWORD os2method;
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| 208 | DWORD newoffset;
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| 209 | APIRET rc;
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| 210 |
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| 211 | switch(method) {
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| 212 | case OSLIB_SETPTR_FILE_CURRENT:
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| 213 | os2method = FILE_CURRENT;
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| 214 | break;
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| 215 | case OSLIB_SETPTR_FILE_BEGIN:
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| 216 | os2method = FILE_BEGIN ;
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| 217 | break;
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| 218 | case OSLIB_SETPTR_FILE_END:
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| 219 | os2method = FILE_END;
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| 220 | break;
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| 221 | default:
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| 222 | return OSLIB_ERROR_INVALID_PARAMETER;
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| 223 | }
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| 224 | rc = DosSetFilePtr(hFile, offset, os2method, &newoffset);
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| 225 | if(rc) {
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| 226 | return -1;
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| 227 | }
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| 228 | else return newoffset;
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| 229 | }
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| 230 | //******************************************************************************
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| 231 | //******************************************************************************
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| 232 | //@@@PH Note: this routine is nothing but a QUICK'N'DIRTY HACK!
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| 233 | //@@@PH this function should be implemented accordingly to NTDLL's
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| 234 | // RtlSecondsSince1980ToTime
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| 235 | // RtlTimeToSecondsSince1980
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| 236 | static void iFDATEFTIME2FILETIME(FDATE fdOS2, FTIME ftOS2, LPFILETIME pftWin32)
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| 237 | {
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| 238 | float f;
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| 239 | #define facSECOND 2 // as encoded in OS/2
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| 240 | #define facMINUTE 60
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| 241 | #define facHOUR 3600
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| 242 | #define facDAY 86400
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| 243 | #define facMONTH facDAY * 30 // cough, cough :)
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| 244 | #define facYEAR facDAY * 365
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| 245 |
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| 246 | /* pftWin32 is 100ns based from 01.01.1601 00:00:00 */
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| 247 | f = (fdOS2.year + 379) * facYEAR // 1980 - 1601
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| 248 | + (fdOS2.month - 0 ) * facMONTH
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| 249 | + (fdOS2.day - 1 ) * facDAY
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| 250 | + (ftOS2.hours ) * facHOUR
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| 251 | + (ftOS2.minutes ) * facMINUTE
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| 252 | + (ftOS2.twosecs ) * facSECOND;
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| 253 |
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| 254 | f *= 10000; // convert to 100ns base
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| 255 | pftWin32->dwHighDateTime = (f / (float)(0xffffffff) );
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| 256 | pftWin32->dwLowDateTime = (f - (float)((float)pftWin32->dwHighDateTime *
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| 257 | (float)0xffffffff) );
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| 258 | }
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| 259 |
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| 260 | BOOL OSLibDosGetFileAttributesEx(PSZ pszName,
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| 261 | ULONG ulDummy,
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| 262 | PVOID pBuffer)
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| 263 | {
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| 264 | APIRET rc; /* API return code */
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| 265 | FILESTATUS3 fs3; /* file information structure */
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| 266 | LPWIN32_FILE_ATTRIBUTE_DATA lpFad = (LPWIN32_FILE_ATTRIBUTE_DATA) pBuffer;
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| 267 |
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| 268 | // Note: we only handle standard "GetFileExInfoStandard" requests
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| 269 | rc = DosQueryPathInfo(pszName, /* query the file information */
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| 270 | FIL_STANDARD,
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| 271 | &fs3,
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| 272 | sizeof(fs3));
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| 273 | if (rc != NO_ERROR) /* check for errors */
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| 274 | return FALSE; /* raise error condition */
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| 275 |
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| 276 | // convert structure
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| 277 | lpFad->dwFileAttributes = fs3.attrFile; // directly interchangeable
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| 278 | iFDATEFTIME2FILETIME(fs3.fdateCreation, fs3.ftimeCreation, &lpFad->ftCreationTime);
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| 279 | iFDATEFTIME2FILETIME(fs3.fdateLastAccess, fs3.ftimeLastAccess, &lpFad->ftLastAccessTime);
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| 280 | iFDATEFTIME2FILETIME(fs3.fdateLastWrite, fs3.ftimeLastWrite, &lpFad->ftLastWriteTime);
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| 281 |
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| 282 | /* @@@PH we might add Aurora support ...
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| 283 | lpFad->nFileSizeHigh = info.nFileSizeHigh;
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| 284 | */
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| 285 | lpFad->nFileSizeHigh = 0;
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| 286 | lpFad->nFileSizeLow = fs3.cbFile;
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| 287 |
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| 288 | return TRUE;
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| 289 | }
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| 290 | //******************************************************************************
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| 291 | //******************************************************************************
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| 292 |
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| 293 | #define OSLIB_SEARCHDIR 1
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| 294 | #define OSLIB_SEARCHCURDIR 2
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| 295 | #define OSLIB_SEARCHFILE 3
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| 296 | #define OSLIB_SEARCHENV 4
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| 297 |
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| 298 | DWORD OSLibDosSearchPath(DWORD cmd, char *path, char *name, char *full_name,
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| 299 | DWORD length_fullname)
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| 300 | {
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| 301 | switch(cmd) {
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| 302 | case OSLIB_SEARCHDIR:
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| 303 | if(DosSearchPath(SEARCH_IGNORENETERRS, path,
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| 304 | name, full_name, length_fullname) != 0) {
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| 305 | return 0;
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| 306 | }
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| 307 | return strlen(full_name);
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| 308 |
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| 309 |
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| 310 | case OSLIB_SEARCHCURDIR:
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| 311 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_CUR_DIRECTORY, path,
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| 312 | name, full_name, length_fullname) != 0) {
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| 313 | return 0;
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| 314 | }
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| 315 | return strlen(full_name);
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| 316 |
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| 317 | case OSLIB_SEARCHFILE:
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| 318 | {
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| 319 | FILESTATUS3 fileinfo;
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| 320 |
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| 321 | if(DosQueryPathInfo(name, FIL_STANDARD, &fileinfo, sizeof(fileinfo)) != 0) {
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| 322 | return 0;
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| 323 | }
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| 324 | strncpy(full_name, name, length_fullname);
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| 325 | return strlen(full_name);
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| 326 | }
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| 327 |
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| 328 | case OSLIB_SEARCHENV:
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| 329 | {
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| 330 | char *env = getenv(path);
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| 331 | if(env == NULL)
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| 332 | return 0;
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| 333 |
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| 334 | while(*env != '=') env++;
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| 335 | env++;
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| 336 | while(*env == ' ') env++;
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| 337 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_ENVIRONMENT, env,
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| 338 | name, full_name, length_fullname) != 0) {
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| 339 | return 0;
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| 340 | }
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| 341 | return strlen(full_name);
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| 342 | }
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| 343 | }
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| 344 | return 0;
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| 345 | }
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| 346 | //******************************************************************************
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| 347 | //******************************************************************************
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