oslist.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	tagOperatingSystemItem

Typedefs
typedef struct tagOperatingSystemItem	OperatingSystemItem

Functions
OperatingSystemItem *	InitOperatingSystemList (ULONG *OperatingSystemCountPointer)

Typedef Documentation

OperatingSystemItem

typedef struct tagOperatingSystemItem OperatingSystemItem

Function Documentation

InitOperatingSystemList()

OperatingSystemItem* InitOperatingSystemList

(

ULONG *

OperatingSystemCountPointer

)

Definition at line 43 of file oslist.c.

{
    ULONG Idx;
    CHAR SettingName[260];
    CHAR SettingValue[260];
    ULONG_PTR SectionId;
    PCHAR TitleStart, TitleEnd;
    PCSTR OsLoadOptions;
    ULONG Count;
    OperatingSystemItem* Items;

    /* Open the [FreeLoader] section */
    if (!IniOpenSection("Operating Systems", &SectionId))
        return NULL;

    /* Count number of operating systems in the section */
    Count = IniGetNumSectionItems(SectionId);

    /* Allocate memory to hold operating system lists */
    Items = FrLdrHeapAlloc(Count * sizeof(OperatingSystemItem), TAG_OS_ITEM);
    if (!Items)
        return NULL;

    /* Now loop through and read the operating system section and display names */
    for (Idx = 0; Idx < Count; Idx++)
    {
        IniReadSettingByNumber(SectionId, Idx, SettingName, sizeof(SettingName), SettingValue, sizeof(SettingValue));

        /* Search start and end of the title */
        OsLoadOptions = NULL;
        TitleStart = SettingValue;
        while (*TitleStart == ' ' || *TitleStart == '"')
            TitleStart++;
        TitleEnd = TitleStart;
        if (*TitleEnd != ANSI_NULL)
            TitleEnd++;
        while (*TitleEnd != ANSI_NULL && *TitleEnd != '"')
            TitleEnd++;
        if (*TitleEnd != ANSI_NULL)
        {
            *TitleEnd = ANSI_NULL;
            OsLoadOptions = TitleEnd + 1;
        }

        /* Copy the system partition, identifier and options */
        Items[Idx].SystemPartition = CopyString(SettingName);
        Items[Idx].LoadIdentifier = CopyString(TitleStart);
        Items[Idx].OsLoadOptions = CopyString(OsLoadOptions);
    }

    /* Return success */
    *OperatingSystemCountPointer = Count;
    return Items;
}

Referenced by RunLoader().