| 1 | /* $Id: oslibdos.cpp,v 1.6 1999-11-08 13:43:12 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 | //******************************************************************************
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| 35 | DWORD OSLibDosAllocMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags)
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| 36 | {
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| 37 | return DosAllocMem(lplpMemAddr, size, flags | flAllocMem);
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| 38 | }
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| 39 | //******************************************************************************
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| 40 | //******************************************************************************
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| 41 | DWORD OSLibDosFreeMem(LPVOID lpMemAddr)
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| 42 | {
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| 43 | return DosFreeMem(lpMemAddr);
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| 44 | }
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| 45 | //******************************************************************************
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| 46 | //NOTE: If name == NULL, allocated gettable unnamed shared memory
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| 47 | //******************************************************************************
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| 48 | DWORD OSLibDosAllocSharedMem(LPVOID *lplpMemAddr, DWORD size, DWORD flags, LPSTR name)
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| 49 | {
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| 50 | APIRET rc;
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| 51 | char *sharedmemname = NULL;
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| 52 |
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| 53 | if(name) {
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| 54 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 55 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 56 | strcat(sharedmemname, name);
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| 57 | }
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| 58 | else flags |= OBJ_GETTABLE;
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| 59 |
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| 60 | rc = DosAllocSharedMem(lplpMemAddr, sharedmemname, size, flags);
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| 61 | if(name) {
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| 62 | free(sharedmemname);
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| 63 | }
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| 64 | return rc;
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| 65 | }
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| 66 | //******************************************************************************
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| 67 | //NOTE: If name == NULL, assume gettable unnamed shared memory
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| 68 | //******************************************************************************
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| 69 | DWORD OSLibDosGetNamedSharedMem(LPVOID *lplpMemAddr, LPSTR name)
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| 70 | {
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| 71 | APIRET rc;
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| 72 | char *sharedmemname = NULL;
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| 73 |
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| 74 | if(name) {
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| 75 | sharedmemname = (char *)malloc(strlen(name) + 16);
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| 76 | strcpy(sharedmemname, "\\SHAREMEM\\");
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| 77 | strcat(sharedmemname, name);
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| 78 | rc = DosGetNamedSharedMem(lplpMemAddr, sharedmemname, PAG_READ|PAG_WRITE);
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| 79 | if(name) {
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| 80 | free(sharedmemname);
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| 81 | }
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| 82 | }
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| 83 | else rc = DosGetSharedMem((LPVOID)*(DWORD *)lplpMemAddr, PAG_READ|PAG_WRITE);
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| 84 |
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| 85 | return rc;
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| 86 | }
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| 87 | //******************************************************************************
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| 88 | //******************************************************************************
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| 89 | DWORD OSLibDosQueryMem(LPVOID lpMemAddr, DWORD *lpRangeSize, DWORD *lpAttr)
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| 90 | {
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| 91 | return DosQueryMem(lpMemAddr, lpRangeSize, lpAttr);
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| 92 | }
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| 93 | //******************************************************************************
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| 94 | //******************************************************************************
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| 95 | DWORD OSLibDosSetMem(LPVOID lpMemAddr, DWORD size, DWORD flags)
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| 96 | {
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| 97 | APIRET rc;
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| 98 |
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| 99 | rc = DosSetMem(lpMemAddr, size, flags);
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| 100 | switch(rc) {
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| 101 | case ERROR_INVALID_ADDRESS:
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| 102 | return OSLIB_ERROR_INVALID_ADDRESS;
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| 103 | case ERROR_ACCESS_DENIED:
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| 104 | return OSLIB_ERROR_ACCESS_DENIED;
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| 105 | default:
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| 106 | return rc;
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| 107 | }
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| 108 | }
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| 109 | //******************************************************************************
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| 110 | //******************************************************************************
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| 111 | DWORD OSLibDosOpen(char *lpszFileName, DWORD flags)
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| 112 | {
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| 113 | APIRET rc;
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| 114 | HFILE hFile;
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| 115 | ULONG ulAction;
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| 116 | DWORD os2flags = OPEN_FLAGS_NOINHERIT;
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| 117 |
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| 118 |
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| 119 | if(flags & OSLIB_ACCESS_READONLY)
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| 120 | os2flags |= OPEN_ACCESS_READONLY;
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| 121 | else
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| 122 | if(flags & OSLIB_ACCESS_READWRITE)
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| 123 | os2flags |= OPEN_ACCESS_READWRITE;
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| 124 |
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| 125 | if(flags & OSLIB_ACCESS_SHAREDENYNONE)
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| 126 | os2flags |= OPEN_SHARE_DENYNONE;
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| 127 | else
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| 128 | if(flags & OSLIB_ACCESS_SHAREDENYREAD)
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| 129 | os2flags |= OPEN_SHARE_DENYREAD;
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| 130 | else
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| 131 | if(flags & OSLIB_ACCESS_SHAREDENYWRITE)
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| 132 | os2flags |= OPEN_SHARE_DENYWRITE;
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| 133 |
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| 134 | rc = DosOpen(lpszFileName, /* File path name */
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| 135 | &hFile, /* File handle */
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| 136 | &ulAction, /* Action taken */
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| 137 | 0L, /* File primary allocation */
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| 138 | 0L, /* File attribute */
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| 139 | OPEN_ACTION_FAIL_IF_NEW |
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| 140 | OPEN_ACTION_OPEN_IF_EXISTS, /* Open function type */
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| 141 | os2flags,
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| 142 | 0L); /* No extended attribute */
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| 143 |
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| 144 | if(rc) {
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| 145 | return 0;
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| 146 | }
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| 147 | else return hFile;
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| 148 | }
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| 149 | //******************************************************************************
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| 150 | //******************************************************************************
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| 151 | DWORD OSLibDosClose(DWORD hFile)
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| 152 | {
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| 153 | return DosClose(hFile);
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| 154 | }
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| 155 | //******************************************************************************
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| 156 | //******************************************************************************
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| 157 | DWORD OSLibDosGetFileSize(DWORD hFile)
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| 158 | {
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| 159 | ULONG ulLocal, filesize = 0;
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| 160 |
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| 161 | DosSetFilePtr(hFile, 0L, FILE_BEGIN, &ulLocal);
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| 162 | DosSetFilePtr(hFile, 0L, FILE_END, &filesize);
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| 163 | DosSetFilePtr(hFile, 0L, FILE_BEGIN, &ulLocal);
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| 164 | return filesize;
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| 165 | }
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| 166 | //******************************************************************************
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| 167 | //******************************************************************************
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| 168 | DWORD OSLibDosRead(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesRead)
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| 169 | {
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| 170 | return DosRead(hFile, lpBuffer, size, nrBytesRead);
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| 171 | }
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| 172 | //******************************************************************************
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| 173 | //******************************************************************************
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| 174 | DWORD OSLibDosWrite(DWORD hFile, LPVOID lpBuffer, DWORD size, DWORD *nrBytesWritten)
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| 175 | {
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| 176 | return DosWrite(hFile, lpBuffer, size, nrBytesWritten);
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| 177 | }
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| 178 | //******************************************************************************
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| 179 | //******************************************************************************
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| 180 | DWORD OSLibDosSetFilePtr(DWORD hFile, DWORD offset, DWORD method)
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| 181 | {
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| 182 | DWORD os2method;
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| 183 | DWORD newoffset;
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| 184 | APIRET rc;
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| 185 |
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| 186 | switch(method) {
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| 187 | case OSLIB_SETPTR_FILE_CURRENT:
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| 188 | os2method = FILE_CURRENT;
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| 189 | break;
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| 190 | case OSLIB_SETPTR_FILE_BEGIN:
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| 191 | os2method = FILE_BEGIN ;
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| 192 | break;
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| 193 | case OSLIB_SETPTR_FILE_END:
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| 194 | os2method = FILE_END;
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| 195 | break;
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| 196 | default:
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| 197 | return OSLIB_ERROR_INVALID_PARAMETER;
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| 198 | }
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| 199 | rc = DosSetFilePtr(hFile, offset, os2method, &newoffset);
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| 200 | if(rc) {
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| 201 | return -1;
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| 202 | }
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| 203 | else return newoffset;
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| 204 | }
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| 205 | //******************************************************************************
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| 206 | //******************************************************************************
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| 207 | //@@@PH Note: this routine is nothing but a QUICK'N'DIRTY HACK!
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| 208 | //@@@PH this function should be implemented accordingly to NTDLL's
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| 209 | // RtlSecondsSince1980ToTime
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| 210 | // RtlTimeToSecondsSince1980
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| 211 | static void iFDATEFTIME2FILETIME(FDATE fdOS2, FTIME ftOS2, LPFILETIME pftWin32)
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| 212 | {
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| 213 | float f;
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| 214 | #define facSECOND 2 // as encoded in OS/2
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| 215 | #define facMINUTE 60
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| 216 | #define facHOUR 3600
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| 217 | #define facDAY 86400
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| 218 | #define facMONTH facDAY * 30 // cough, cough :)
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| 219 | #define facYEAR facDAY * 365
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| 220 |
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| 221 | /* pftWin32 is 100ns based from 01.01.1601 00:00:00 */
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| 222 | f = (fdOS2.year + 379) * facYEAR // 1980 - 1601
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| 223 | + (fdOS2.month - 0 ) * facMONTH
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| 224 | + (fdOS2.day - 1 ) * facDAY
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| 225 | + (ftOS2.hours ) * facHOUR
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| 226 | + (ftOS2.minutes ) * facMINUTE
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| 227 | + (ftOS2.twosecs ) * facSECOND;
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| 228 |
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| 229 | f *= 10000; // convert to 100ns base
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| 230 | pftWin32->dwHighDateTime = (f / (float)(0xffffffff) );
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| 231 | pftWin32->dwLowDateTime = (f - (float)((float)pftWin32->dwHighDateTime *
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| 232 | (float)0xffffffff) );
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| 233 | }
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| 234 |
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| 235 | BOOL OSLibDosGetFileAttributesEx(PSZ pszName,
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| 236 | ULONG ulDummy,
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| 237 | PVOID pBuffer)
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| 238 | {
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| 239 | APIRET rc; /* API return code */
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| 240 | FILESTATUS3 fs3; /* file information structure */
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| 241 | LPWIN32_FILE_ATTRIBUTE_DATA lpFad = (LPWIN32_FILE_ATTRIBUTE_DATA) pBuffer;
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| 242 |
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| 243 | // Note: we only handle standard "GetFileExInfoStandard" requests
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| 244 | rc = DosQueryPathInfo(pszName, /* query the file information */
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| 245 | FIL_STANDARD,
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| 246 | &fs3,
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| 247 | sizeof(fs3));
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| 248 | if (rc != NO_ERROR) /* check for errors */
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| 249 | return FALSE; /* raise error condition */
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| 250 |
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| 251 | // convert structure
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| 252 | lpFad->dwFileAttributes = fs3.attrFile; // directly interchangeable
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| 253 | iFDATEFTIME2FILETIME(fs3.fdateCreation, fs3.ftimeCreation, &lpFad->ftCreationTime);
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| 254 | iFDATEFTIME2FILETIME(fs3.fdateLastAccess, fs3.ftimeLastAccess, &lpFad->ftLastAccessTime);
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| 255 | iFDATEFTIME2FILETIME(fs3.fdateLastWrite, fs3.ftimeLastWrite, &lpFad->ftLastWriteTime);
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| 256 |
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| 257 | /* @@@PH we might add Aurora support ...
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| 258 | lpFad->nFileSizeHigh = info.nFileSizeHigh;
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| 259 | */
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| 260 | lpFad->nFileSizeHigh = 0;
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| 261 | lpFad->nFileSizeLow = fs3.cbFile;
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| 262 |
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| 263 | return TRUE;
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| 264 | }
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| 265 | //******************************************************************************
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| 266 | //******************************************************************************
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| 267 |
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| 268 | #define OSLIB_SEARCHDIR 1
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| 269 | #define OSLIB_SEARCHCURDIR 2
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| 270 | #define OSLIB_SEARCHFILE 3
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| 271 | #define OSLIB_SEARCHENV 4
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| 272 |
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| 273 | DWORD OSLibDosSearchPath(DWORD cmd, char *path, char *name, char *full_name,
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| 274 | DWORD length_fullname)
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| 275 | {
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| 276 | switch(cmd) {
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| 277 | case OSLIB_SEARCHDIR:
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| 278 | if(DosSearchPath(SEARCH_IGNORENETERRS, path,
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| 279 | name, full_name, length_fullname) != 0) {
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| 280 | return 0;
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| 281 | }
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| 282 | return strlen(full_name);
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| 283 |
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| 284 |
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| 285 | case OSLIB_SEARCHCURDIR:
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| 286 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_CUR_DIRECTORY, path,
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| 287 | name, full_name, length_fullname) != 0) {
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| 288 | return 0;
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| 289 | }
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| 290 | return strlen(full_name);
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| 291 |
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| 292 | case OSLIB_SEARCHFILE:
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| 293 | {
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| 294 | FILESTATUS3 fileinfo;
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| 295 |
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| 296 | if(DosQueryPathInfo(name, FIL_STANDARD, &fileinfo, sizeof(fileinfo)) != 0) {
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| 297 | return 0;
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| 298 | }
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| 299 | strncpy(full_name, name, length_fullname);
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| 300 | return strlen(full_name);
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| 301 | }
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| 302 |
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| 303 | case OSLIB_SEARCHENV:
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| 304 | {
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| 305 | char *env = getenv(path);
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| 306 | if(env == NULL)
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| 307 | return 0;
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| 308 |
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| 309 | while(*env != '=') env++;
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| 310 | env++;
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| 311 | while(*env == ' ') env++;
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| 312 | if(DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_ENVIRONMENT, env,
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| 313 | name, full_name, length_fullname) != 0) {
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| 314 | return 0;
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| 315 | }
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| 316 | return strlen(full_name);
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| 317 | }
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| 318 | }
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| 319 | return 0;
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| 320 | }
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| 321 | //******************************************************************************
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| 322 | //******************************************************************************
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