arcname.c File Reference

#include <freeldr.h>

Include dependency graph for arcname.c:

Go to the source code of this file.

Functions
BOOLEAN	DissectArcPath (IN PCSTR ArcPath, OUT PCSTR *Path OPTIONAL, OUT PUCHAR DriveNumber, OUT PULONG PartitionNumber)
BOOLEAN	DissectArcPath2 (IN PCSTR ArcPath, OUT PULONG x, OUT PULONG y, OUT PULONG z, OUT PULONG Partition, OUT PULONG PathSyntax)
VOID	ConstructArcPath (PCHAR ArcPath, PCHAR SystemFolder, UCHAR Disk, ULONG Partition)

Function Documentation

ConstructArcPath()

VOID ConstructArcPath	(	PCHAR	ArcPath,
		PCHAR	SystemFolder,
		UCHAR	Disk,
		ULONG	Partition
	)

Definition at line 175 of file arcname.c.

{
    char    tmp[50];

    strcpy(ArcPath, "multi(0)disk(0)");

    if (Disk < 0x80)
    {
        /*
         * Floppy disk path:
         *  multi(0)disk(0)fdisk(x)\path
         */
        sprintf(tmp, "fdisk(%d)", (int) Disk);
        strcat(ArcPath, tmp);
    }
    else
    {
        /*
         * Hard disk path:
         *  multi(0)disk(0)rdisk(x)partition(y)\path
         */
        sprintf(tmp, "rdisk(%d)partition(%d)", (int) (Disk - 0x80), (int) Partition);
        strcat(ArcPath, tmp);
    }

    if (SystemFolder[0] == '\\' || SystemFolder[0] == '/')
    {
        strcat(ArcPath, SystemFolder);
    }
    else
    {
        strcat(ArcPath, "\\");
        strcat(ArcPath, SystemFolder);
    }
}

Referenced by EditCustomBootReactOS().

DissectArcPath()

BOOLEAN DissectArcPath	(	IN PCSTR	ArcPath,
		OUT PCSTR *Path	OPTIONAL,
		OUT PUCHAR	DriveNumber,
		OUT PULONG	PartitionNumber
	)

Definition at line 25 of file arcname.c.

{
    PCCH p;

    /* Detect ramdisk path */
    if (_strnicmp(ArcPath, "ramdisk(0)", 10) == 0)
    {
        /* Magic value for ramdisks */
        *DriveNumber = 0x49;
        *PartitionNumber = 1;

        /* Get the path (optional) */
        if (Path)
            *Path = ArcPath + 10;

        return TRUE;
    }

    /* NOTE: We are currently limited when handling multi()disk() paths!! */
    if (_strnicmp(ArcPath, "multi(0)disk(0)", 15) != 0)
        return FALSE;

    p = ArcPath + 15;
    if (_strnicmp(p, "fdisk(", 6) == 0)
    {
        /*
         * Floppy disk path:
         *  multi(0)disk(0)fdisk(x)\path
         */
        p = p + 6;
        *DriveNumber = atoi(p);
        p = strchr(p, ')');
        if (p == NULL)
            return FALSE;
        ++p;
        *PartitionNumber = 0;
    }
    else if (_strnicmp(p, "cdrom(", 6) == 0)
    {
        /*
         * Cdrom path:
         *  multi(0)disk(0)cdrom(x)\path
         */
        p = p + 6;
        *DriveNumber = atoi(p) + 0x80;
        p = strchr(p, ')');
        if (p == NULL)
            return FALSE;
        ++p;
        *PartitionNumber = 0xff;
    }
    else if (_strnicmp(p, "rdisk(", 6) == 0)
    {
        /*
         * Hard disk path:
         *  multi(0)disk(0)rdisk(x)[partition(y)][\path]
         */
        p = p + 6;
        *DriveNumber = atoi(p) + 0x80;
        p = strchr(p, ')');
        if (p == NULL)
            return FALSE;
        ++p;
        /* The partition is optional */
        if (_strnicmp(p, "partition(", 10) == 0)
        {
            p = p + 10;
            *PartitionNumber = atoi(p);
            p = strchr(p, ')');
            if (p == NULL)
                return FALSE;
            ++p;
        }
        else
        {
            *PartitionNumber = 0;
        }
    }
    else
    {
        return FALSE;
    }

    /* Get the path (optional) */
    if (Path)
        *Path = p;

    return TRUE;
}

Referenced by DiskOpen().

DissectArcPath2()

BOOLEAN DissectArcPath2	(	IN PCSTR	ArcPath,
		OUT PULONG	x,
		OUT PULONG	y,
		OUT PULONG	z,
		OUT PULONG	Partition,
		OUT PULONG	PathSyntax
	)

Definition at line 121 of file arcname.c.

{
    /* Detect ramdisk() */
    if (_strnicmp(ArcPath, "ramdisk(0)", 10) == 0)
    {
        *x = *y = *z = 0;
        *Partition = 1;
        *PathSyntax = 2;
        return TRUE;
    }
    /* Detect scsi()disk()rdisk()partition() */
    else if (sscanf(ArcPath, "scsi(%lu)disk(%lu)rdisk(%lu)partition(%lu)", x, y, z, Partition) == 4)
    {
        *PathSyntax = 0;
        return TRUE;
    }
    /* Detect scsi()cdrom()fdisk() */
    else if (sscanf(ArcPath, "scsi(%lu)cdrom(%lu)fdisk(%lu)", x, y, z) == 3)
    {
        *Partition = 0;
        *PathSyntax = 0;
        return TRUE;
    }
    /* Detect multi()disk()rdisk()partition() */
    else if (sscanf(ArcPath, "multi(%lu)disk(%lu)rdisk(%lu)partition(%lu)", x, y, z, Partition) == 4)
    {
        *PathSyntax = 1;
        return TRUE;
    }
    /* Detect multi()disk()cdrom() */
    else if (sscanf(ArcPath, "multi(%lu)disk(%lu)cdrom(%lu)", x, y, z) == 3)
    {
        *Partition = 1;
        *PathSyntax = 1;
        return TRUE;
    }
    /* Detect multi()disk()fdisk() */
    else if (sscanf(ArcPath, "multi(%lu)disk(%lu)fdisk(%lu)", x, y, z) == 3)
    {
        *Partition = 1;
        *PathSyntax = 1;
        return TRUE;
    }

    /* Unknown syntax */
    return FALSE;
}

Referenced by DiskOpen().