4db18a42908dbf7911802ca657039a33bca054b4
[reactos.git] / boot / freeldr / freeldr / lib / inifile / ini_init.c
1 /*
2 * FreeLoader
3 * Copyright (C) 2009 Hervé Poussineau <hpoussin@reactos.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #include <freeldr.h>
21 #include <debug.h>
22 DBG_DEFAULT_CHANNEL(INIFILE);
23
24 static ARC_STATUS IniOpenIniFile(ULONG* FileId)
25 {
26 CHAR FreeldrPath[MAX_PATH];
27
28 //
29 // Create full freeldr.ini path
30 //
31 MachDiskGetBootPath(FreeldrPath, sizeof(FreeldrPath));
32 strcat(FreeldrPath, "\\freeldr.ini");
33
34 // Try to open freeldr.ini
35 return ArcOpen(FreeldrPath, OpenReadOnly, FileId);
36 }
37
38 BOOLEAN IniFileInitialize(VOID)
39 {
40 FILEINFORMATION FileInformation;
41 ULONG FileId; // File handle for freeldr.ini
42 PCHAR FreeLoaderIniFileData;
43 ULONG FreeLoaderIniFileSize, Count;
44 ARC_STATUS Status;
45 BOOLEAN Success;
46 TRACE("IniFileInitialize()\n");
47
48 //
49 // Open freeldr.ini
50 //
51 Status = IniOpenIniFile(&FileId);
52 if (Status != ESUCCESS)
53 {
54 UiMessageBoxCritical("Error opening freeldr.ini or file not found.\nYou need to re-install FreeLoader.");
55 return FALSE;
56 }
57
58 //
59 // Get the file size
60 //
61 Status = ArcGetFileInformation(FileId, &FileInformation);
62 if (Status != ESUCCESS || FileInformation.EndingAddress.HighPart != 0)
63 {
64 UiMessageBoxCritical("Error while getting informations about freeldr.ini.\nYou need to re-install FreeLoader.");
65 return FALSE;
66 }
67 FreeLoaderIniFileSize = FileInformation.EndingAddress.LowPart;
68
69 //
70 // Allocate memory to cache the whole freeldr.ini
71 //
72 FreeLoaderIniFileData = FrLdrTempAlloc(FreeLoaderIniFileSize, TAG_INI_FILE);
73 if (!FreeLoaderIniFileData)
74 {
75 UiMessageBoxCritical("Out of memory while loading freeldr.ini.");
76 ArcClose(FileId);
77 return FALSE;
78 }
79
80 //
81 // Read freeldr.ini off the disk
82 //
83 Status = ArcRead(FileId, FreeLoaderIniFileData, FreeLoaderIniFileSize, &Count);
84 if (Status != ESUCCESS || Count != FreeLoaderIniFileSize)
85 {
86 UiMessageBoxCritical("Error while reading freeldr.ini.");
87 ArcClose(FileId);
88 FrLdrTempFree(FreeLoaderIniFileData, TAG_INI_FILE);
89 return FALSE;
90 }
91
92 //
93 // Parse the .ini file data
94 //
95 Success = IniParseFile(FreeLoaderIniFileData, FreeLoaderIniFileSize);
96
97 //
98 // Do some cleanup, and return
99 //
100 ArcClose(FileId);
101 FrLdrTempFree(FreeLoaderIniFileData, TAG_INI_FILE);
102
103 return Success;
104 }