private unsafe static uint GetRootLength(char *path, ulong pathLength)
{
uint num = 0U;
uint num2 = 2U;
uint num3 = 2U;
bool flag = PathInternal.StartsWithOrdinal(path, pathLength, "\\\\?\\");
bool flag2 = PathInternal.StartsWithOrdinal(path, pathLength, "\\\\?\\UNC\\");
if (flag)
{
if (flag2)
{
num3 = (uint)"\\\\?\\UNC\\".Length;
}
else
{
num2 += (uint)"\\\\?\\".Length;
}
}
if ((!flag || flag2) && pathLength > 0UL && PathInternal.IsDirectorySeparator(*path))
{
num = 1U;
if (flag2 || (pathLength > 1UL && PathInternal.IsDirectorySeparator(path[1])))
{
num = num3;
int num4 = 2;
while ((ulong)num < pathLength)
{
if (PathInternal.IsDirectorySeparator(path[(ulong)num * 2UL / 2UL]) && --num4 <= 0)
{
break;
}
num += 1U;
}
}
}
else if (pathLength >= (ulong)num2 && path[(ulong)(num2 - 1U) * 2UL / 2UL] == Path.VolumeSeparatorChar)
{
num = num2;
if (pathLength >= (ulong)(num2 + 1U) && PathInternal.IsDirectorySeparator(path[(ulong)num2 * 2UL / 2UL]))
{
num += 1U;
}
}
return(num);
}
