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[FREELDR] Add an INI helper that allows modifying an existing setting's value in memory.

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Hermès Bélusca-Maïto 2019-08-02 23:32:30 +02:00
parent b5c6af459c
commit d21ffe6336
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2 changed files with 42 additions and 0 deletions
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1
boot/freeldr/freeldr/include/inifile.h
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@ -81,4 +81,5 @@ BOOLEAN IniReadSettingByNumber(ULONG_PTR SectionId, ULONG SettingNumber, PCHA
BOOLEAN IniReadSettingByName(ULONG_PTR SectionId, PCSTR SettingName, PCHAR Buffer, ULONG BufferSize);
BOOLEAN IniAddSection(PCSTR SectionName, ULONG_PTR* SectionId);
BOOLEAN IniAddSettingValueToSection(ULONG_PTR SectionId, PCSTR SettingName, PCSTR SettingValue);
BOOLEAN IniModifySettingValue(ULONG_PTR SectionId, PCSTR SettingName, PCSTR SettingValue);
VOID IniCleanup(VOID);

41
boot/freeldr/freeldr/lib/inifile/inifile.c
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@ -289,3 +289,44 @@ BOOLEAN IniAddSettingValueToSection(ULONG_PTR SectionId, PCSTR SettingName, PCST
return TRUE;
}
BOOLEAN IniModifySettingValue(ULONG_PTR SectionId, PCSTR SettingName, PCSTR SettingValue)
{
PINI_SECTION Section = (PINI_SECTION)SectionId;
PINI_SECTION_ITEM SectionItem;
PCHAR NewItemValue;
// Loop through each section item and find the one we want
SectionItem = CONTAINING_RECORD(Section->SectionItemList.Flink, INI_SECTION_ITEM, ListEntry);
while (&SectionItem->ListEntry != &Section->SectionItemList)
{
// Check to see if this is the setting we want
if (_stricmp(SectionItem->ItemName, SettingName) == 0)
{
break;
}
// Nope, keep going
// Get the next section item in the list
SectionItem = CONTAINING_RECORD(SectionItem->ListEntry.Flink, INI_SECTION_ITEM, ListEntry);
}
// If the section item does not exist, create it
if (&SectionItem->ListEntry == &Section->SectionItemList)
{
return IniAddSettingValueToSection(SectionId, SettingName, SettingValue);
}
// Reallocate the new setting value buffer
NewItemValue = FrLdrTempAlloc(strlen(SettingValue) + 1, TAG_INI_VALUE);
if (!NewItemValue)
{
// We failed, bail out
return FALSE;
}
FrLdrTempFree(SectionItem->ItemValue, TAG_INI_VALUE);
SectionItem->ItemValue = NewItemValue;
strcpy(SectionItem->ItemValue, SettingValue);
return TRUE;
}