Function SysLink

Kernel/src/arch/x86_64/syscalls.cpp:397–432

}

long SysLink(regs64_t* r){
	const char* oldpath = (const char*)SC_ARG0(r);
	const char* newpath = (const char*)SC_ARG1(r);

	process_t* proc = Scheduler::GetCurrentProcess();

	if(!(Memory::CheckUsermodePointer(SC_ARG0(r), 1, proc->addressSpace) && Memory::CheckUsermodePointer(SC_ARG1(r), 1, proc->addressSpace))){
		Log::Warning("sys_link: Invalid path pointer");
		return -EFAULT;
	}

	FsNode* file = fs::ResolvePath(oldpath);
	if(!file){
		Log::Warning("sys_link: Could not resolve path: %s", oldpath);
		return -ENOENT;
	}
	
	FsNode* parentDirectory = fs::ResolveParent(newpath, proc->workingDir);
	char* linkName = fs::BaseName(newpath);
	
	Log::Info("sys_link: Attempting to create link %s at path %s", linkName, newpath);

	if(!parentDirectory){
		Log::Warning("sys_link: Could not resolve path: %s", newpath);
		return -ENOENT;
	}

	if((parentDirectory->flags & FS_NODE_TYPE) != FS_NODE_DIRECTORY){
		Log::Warning("sys_link: Could not resolve path: Parent not a directory: %s", newpath);
		return -ENOTDIR;
	}

	DirectoryEntry entry;
	strcpy(entry.name, linkName);
	return parentDirectory->Link(file, &entry);
}

long SysUnlink(regs64_t* r){
	const char* path = (const char*)SC_ARG0(r);