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https://github.com/reactos/reactos.git
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5db0abce79
Correctly determines FAT type based on cluster count instead of partition id svn path=/trunk/; revision=2528
255 lines
6.3 KiB
C
255 lines
6.3 KiB
C
/*
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* FreeLoader
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* Copyright (C) 1998-2002 Brian Palmer <brianp@sginet.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "freeldr.h"
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#include "parseini.h"
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#include "oslist.h"
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#include "rtl.h"
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#include "mm.h"
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#include "ui.h"
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BOOL InitOperatingSystemList(PUCHAR **SectionNamesPointer, PUCHAR **DisplayNamesPointer, PULONG OperatingSystemCountPointer)
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{
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ULONG Idx;
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ULONG CurrentOperatingSystemIndex;
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UCHAR SettingName[80];
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UCHAR SettingValue[80];
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ULONG OperatingSystemCount;
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ULONG SectionId;
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ULONG OperatingSystemSectionId;
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ULONG SectionSettingCount;
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PUCHAR *OperatingSystemSectionNames;
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PUCHAR *OperatingSystemDisplayNames;
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//
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// Open the [FreeLoader] section
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//
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if (!OpenSection("FreeLoader", &SectionId))
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{
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MessageBox("Section [FreeLoader] not found in freeldr.ini.");
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return FALSE;
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}
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SectionSettingCount = GetNumSectionItems(SectionId);
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OperatingSystemCount = CountOperatingSystems(SectionId);
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//
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// Allocate memory to hold operating system lists
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//
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if (!AllocateListMemory(&OperatingSystemSectionNames, &OperatingSystemDisplayNames, OperatingSystemCount))
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{
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return FALSE;
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}
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//
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// Now loop through and read the operating system section names
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//
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CurrentOperatingSystemIndex = 0;
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for (Idx=0; Idx<SectionSettingCount; Idx++)
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{
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ReadSectionSettingByNumber(SectionId, Idx, SettingName, 80, SettingValue, 80);
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if (stricmp(SettingName, "OS") == 0)
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{
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strcpy(OperatingSystemSectionNames[CurrentOperatingSystemIndex], SettingValue);
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CurrentOperatingSystemIndex++;
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}
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}
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//
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// Now loop through and read the operating system display names
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//
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for (Idx=0; Idx<OperatingSystemCount; Idx++)
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{
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if (OpenSection(OperatingSystemSectionNames[Idx], &OperatingSystemSectionId))
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{
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if (ReadSectionSettingByName(OperatingSystemSectionId, "Name", SettingValue, 80))
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{
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//
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// Remove any quotes around the string
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//
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RemoveQuotes(SettingValue);
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strcpy(OperatingSystemDisplayNames[Idx], SettingValue);
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}
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else
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{
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sprintf(SettingName, "Operating System '%s' has no Name= line in it's [section].", OperatingSystemSectionNames[Idx]);
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MessageBox(SettingName);
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strcpy(OperatingSystemDisplayNames[Idx], "");
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}
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}
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}
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*OperatingSystemCountPointer = OperatingSystemCount;
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*SectionNamesPointer = OperatingSystemSectionNames;
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*DisplayNamesPointer = OperatingSystemDisplayNames;
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return TRUE;
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}
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ULONG CountOperatingSystems(ULONG SectionId)
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{
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ULONG Idx;
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UCHAR SettingName[80];
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UCHAR SettingValue[80];
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ULONG OperatingSystemCount = 0;
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ULONG SectionSettingCount;
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//
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// Loop through and count the operating systems
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//
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SectionSettingCount = GetNumSectionItems(SectionId);
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for (Idx=0; Idx<SectionSettingCount; Idx++)
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{
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ReadSectionSettingByNumber(SectionId, Idx, SettingName, 80, SettingValue, 80);
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if (stricmp(SettingName, "OS") == 0)
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{
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if (OpenSection(SettingValue, NULL))
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{
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OperatingSystemCount++;
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}
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else
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{
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sprintf(SettingName, "Operating System '%s' is listed in freeldr.ini but doesn't have a [section].", SettingValue);
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MessageBox(SettingName);
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}
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}
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}
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return OperatingSystemCount;
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}
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BOOL AllocateListMemory(PUCHAR **SectionNamesPointer, PUCHAR **DisplayNamesPointer, ULONG OperatingSystemCount)
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{
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ULONG Idx;
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PUCHAR *OperatingSystemSectionNames = NULL;
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PUCHAR *OperatingSystemDisplayNames = NULL;
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//
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// Allocate memory to hold operating system list arrays
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//
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OperatingSystemSectionNames = (PUCHAR*) AllocateMemory( sizeof(PUCHAR) * OperatingSystemCount);
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OperatingSystemDisplayNames = (PUCHAR*) AllocateMemory( sizeof(PUCHAR) * OperatingSystemCount);
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//
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// If either allocation failed then return FALSE
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//
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if ( (OperatingSystemSectionNames == NULL) || (OperatingSystemDisplayNames == NULL) )
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{
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if (OperatingSystemSectionNames != NULL)
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{
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FreeMemory(OperatingSystemSectionNames);
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}
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if (OperatingSystemDisplayNames != NULL)
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{
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FreeMemory(OperatingSystemDisplayNames);
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}
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return FALSE;
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}
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//
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// Clear our newly allocated memory
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//
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memset(OperatingSystemSectionNames, 0, sizeof(PUCHAR) * OperatingSystemCount);
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memset(OperatingSystemDisplayNames, 0, sizeof(PUCHAR) * OperatingSystemCount);
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//
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// Loop through each array element and allocate it's string memory
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//
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for (Idx=0; Idx<OperatingSystemCount; Idx++)
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{
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OperatingSystemSectionNames[Idx] = (PUCHAR) AllocateMemory(80);
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OperatingSystemDisplayNames[Idx] = (PUCHAR) AllocateMemory(80);
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//
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// If it failed then jump to the cleanup code
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//
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if ( (OperatingSystemSectionNames[Idx] == NULL) || (OperatingSystemDisplayNames[Idx] == NULL))
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{
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goto AllocateListMemoryFailed;
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}
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}
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*SectionNamesPointer = OperatingSystemSectionNames;
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*DisplayNamesPointer = OperatingSystemDisplayNames;
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return TRUE;
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AllocateListMemoryFailed:
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//
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// Loop through each array element and free it's string memory
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//
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for (Idx=0; Idx<OperatingSystemCount; Idx++)
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{
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if (OperatingSystemSectionNames[Idx] != NULL)
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{
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FreeMemory(OperatingSystemSectionNames[Idx]);
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}
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if (OperatingSystemDisplayNames[Idx] != NULL)
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{
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FreeMemory(OperatingSystemDisplayNames[Idx]);
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}
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}
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//
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// Free operating system list arrays
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//
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FreeMemory(OperatingSystemSectionNames);
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FreeMemory(OperatingSystemDisplayNames);
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return FALSE;
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}
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BOOL RemoveQuotes(PUCHAR QuotedString)
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{
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UCHAR TempString[200];
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//
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// If this string is not quoted then return FALSE
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//
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if ((QuotedString[0] != '\"') && (QuotedString[strlen(QuotedString)-1] != '\"'))
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{
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return FALSE;
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}
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if (QuotedString[0] == '\"')
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{
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strcpy(TempString, (QuotedString + 1));
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}
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else
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{
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strcpy(TempString, QuotedString);
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}
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if (TempString[strlen(TempString)-1] == '\"')
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{
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TempString[strlen(TempString)-1] = '\0';
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}
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strcpy(QuotedString, TempString);
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return TRUE;
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}
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