source: trunk/src/kernel32/lfile.cpp@ 1323

Last change on this file since 1323 was 1155, checked in by phaller, 26 years ago

.
File size: 8.0 KB
Line 
1/* $Id: lfile.cpp,v 1.4 1999-10-06 15:00:27 phaller Exp $ */
2
3/*
4 *
5 * Project Odin Software License can be found in LICENSE.TXT
6 *
7 */
8/*
9 * Win32 compatibility file functions for OS/2
10 *
11 * 1998/06/12 PH Patrick Haller (haller@zebra.fh-weingarten.de)
12 *
13 * @(#) LFILE.C 1.0.0 1998/06/12 PH added HandleManager support
14 * 1.1.0 1998/08/29 KSO corrected error codes and forwarded
15 * to Win32 file api as NT/95 does.
16 * 1.1.1 1999/06/09 PH NOTE: only forard to KERNEL32:FILEIO
17 * calls, never do anything else !
18 */
19
20
21/*****************************************************************************
22 * Includes *
23 *****************************************************************************/
24
25#include <os2win.h>
26
27
28/*****************************************************************************
29 * Name : HFILE WIN32API _lclose
30 * Purpose : forward call to CloseHandle
31 * Parameters:
32 * Variables :
33 * Result :
34 * Remark : Depends on CloseHandle working.
35 * Status : Tested
36 *
37 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
38 *****************************************************************************/
39
40HFILE WIN32API _lclose(HFILE arg1)
41{
42 dprintf(("KERNEL32: _lclose(%08xh)\n",
43 arg1));
44
45 if (CloseHandle(arg1))
46 return 0;
47 else
48 return -1;
49}
50
51
52/*****************************************************************************
53 * Name : HFILE WIN32API _lcreat
54 * Purpose : forward call to CreateFileA
55 * Parameters:
56 * Variables :
57 * Result :
58 * Remark : Depends on CreateFile working.
59 * Status : Tested
60 *
61 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
62 *****************************************************************************/
63
64HFILE WIN32API _lcreat(LPCSTR arg1,
65 int arg2)
66{
67 HANDLE hFile;
68
69 dprintf(("KERNEL32: _lcreat(%s, %08xh)\n",
70 arg1,
71 arg2));
72
73 //if (arg2 & ~(1 | 2 | 4))
74 // dprintf(("KERNEL32: Warning: _lcreat has unknown flag(s) set - fails.\n"));
75
76 //SetLastError(0); - CreateFileA sets error
77 hFile = CreateFileA(arg1, /* filename */
78 GENERIC_READ | GENERIC_WRITE, /* readwrite access */
79 FILE_SHARE_READ | FILE_SHARE_WRITE,/* share all */
80 NULL, /* ignore scurity */
81 CREATE_ALWAYS, /* create (trunkate don't work) */
82 arg2 & 0x3fb7, /* so M$ does (that is more attributes than I could find in the headers and in the docs!) */
83 NULL); /* no template */
84
85 dprintf(("KERNEL32: _lcreat returns %08xh.\n",
86 hFile));
87 return hFile;
88}
89
90
91/*****************************************************************************
92 * Name : HFILE WIN32API _lopen
93 * Purpose : forward call to CreateFileA
94 * Parameters:
95 * Variables :
96 * Result :
97 * Remark :
98 * Status : Tested
99 *
100 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
101 *****************************************************************************/
102
103HFILE WIN32API _lopen(LPCSTR pszFileName,
104 int arg2)
105{
106 ULONG ulAccess = 0;
107 ULONG ulShare;
108 HANDLE hFile;
109
110 dprintf(("KERNEL32: _lopen(%s, %08xh)\n",
111 pszFileName,
112 arg2));
113
114 if (arg2 & ~(OF_READ|OF_READWRITE|OF_WRITE|OF_SHARE_COMPAT|OF_SHARE_DENY_NONE|OF_SHARE_DENY_READ|OF_SHARE_DENY_WRITE|OF_SHARE_EXCLUSIVE))
115 dprintf(("KERNEL32: (warn) _lopen has unknown flag(s) set.\n"));
116
117 /* Access */
118 ulAccess |= arg2 & OF_READ ? GENERIC_READ : 0;
119 ulAccess |= arg2 & OF_WRITE ? GENERIC_WRITE : 0;
120 ulAccess |= arg2 & OF_READWRITE ? GENERIC_READ | GENERIC_WRITE : 0;
121
122 /* Share */
123 ulShare = arg2 & (OF_SHARE_COMPAT | OF_SHARE_DENY_NONE | OF_SHARE_DENY_READ | OF_SHARE_DENY_WRITE | OF_SHARE_EXCLUSIVE);
124 if (ulShare == OF_SHARE_DENY_READ)
125 ulShare = FILE_SHARE_WRITE;
126 else if (ulShare == OF_SHARE_DENY_WRITE)
127 ulShare = FILE_SHARE_READ;
128 else if (ulShare == OF_SHARE_DENY_NONE)
129 ulShare = FILE_SHARE_READ | FILE_SHARE_WRITE;
130 else if (ulShare == OF_SHARE_EXCLUSIVE)
131 ulShare = 0; //no share
132 else if (ulShare == OF_SHARE_COMPAT)
133 ulShare = FILE_SHARE_READ | FILE_SHARE_WRITE;
134 else
135 {
136 dprintf(("KERNEL32: _lopen - warning incorrect value for arg2 (or incorrect implementation...)\n"));
137 ulShare = 0;
138 }
139
140 hFile = CreateFileA(pszFileName, /* filename */
141 ulAccess, /* */
142 ulShare, /* */
143 NULL, /* ignore scurity */
144 OPEN_EXISTING, /* open existing file, fail if new */
145 FILE_ATTRIBUTE_NORMAL, /* normal attribs - no flags */ //m$ sets this to 0
146 NULL); /* no template */
147
148 dprintf(("KERNEL32: _lopen returns %08xh.\n",
149 hFile));
150
151 // map correct return code for _lopen
152 if (hFile != INVALID_HANDLE_VALUE)
153 return hFile;
154 else
155 return HFILE_ERROR;
156}
157
158
159/*****************************************************************************
160 * Name : HFILE WIN32API _lread
161 * Purpose : forward call to ReadFile
162 * Parameters:
163 * Variables :
164 * Result :
165 * Remark : Depend on that ReadFile works properly.
166 * Status : Tested
167 *
168 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
169 *****************************************************************************/
170
171UINT WIN32API _lread(HFILE arg1,
172 PVOID arg2,
173 UINT arg3)
174{
175 ULONG rc;
176
177 dprintf(("KERNEL32: _lread(%08xh, %08xh, %08xh)\n",
178 arg1,
179 arg2,
180 arg3));
181
182 if (!ReadFile(arg1,
183 arg2,
184 arg3,
185 &rc,
186 NULL))
187 rc = -1;
188
189 dprintf(("KERNEL32: _lread returns %08xh.",
190 rc));
191
192 return rc;
193}
194
195
196/*****************************************************************************
197 * Name : HFILE WIN32API _llseek
198 * Purpose : forward call to SetFilePointer
199 * Parameters:
200 * Variables :
201 * Result :
202 * Remark : Depends on SetFilePointer working
203 * Status : Tested.
204 *
205 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
206 *****************************************************************************/
207
208LONG WIN32API _llseek(HFILE arg1,
209 LONG arg2,
210 int arg3)
211{
212 ULONG rc;
213
214 dprintf(("KERNEL32: _llseek(%08xh, %08xh, %08xh)\n",
215 arg1,
216 arg2,
217 arg3));
218 if (!(arg3 == FILE_BEGIN ||
219 arg3 == FILE_CURRENT ||
220 arg3 == FILE_END))
221 {
222 dprintf(("KERNEL32: _llseek - incorrect origin - fails.\n" ));
223 return -1;
224 }
225
226 rc = SetFilePointer(arg1,
227 arg2,
228 NULL,
229 arg3); //returns -1 on error (-1 == 0xffffffff)
230
231 dprintf(("KERNEL32: _llseek returns %08xh", rc));
232
233 return rc;
234}
235
236
237/*****************************************************************************
238 * Name : HFILE WIN32API _lwrite
239 * Purpose : forward call to WriteFile
240 * Parameters:
241 * Variables :
242 * Result :
243 * Remark : Depends on WriteFile working
244 * Status : Tested
245 *
246 * Author : Patrick Haller [Fri, 1998/06/12 03:44]
247 *****************************************************************************/
248
249UINT WIN32API _lwrite(HFILE arg1,
250 LPCSTR arg2,
251 UINT arg3)
252{
253 ULONG rc;
254
255 dprintf(("KERNEL32: _lwrite(%08xh, %08xh, %08xh)\n",
256 arg1,
257 arg2,
258 arg3));
259
260 if (!WriteFile(arg1,
261 (PVOID)arg2,
262 arg3,
263 &rc,
264 NULL))
265 rc = -1;
266
267 dprintf(("KERNEL32: _lwrite returns %08xh.\n",
268 rc));
269
270 return rc;
271}
272
Note: See TracBrowser for help on using the repository browser.