struct vfs_node_p *vfs_open(char *path, char *flags)
{
mountpoint_t *mp = vfs_get_mountpoint(path);
if(mp == NULL)
return (struct vfs_node_p *) NULL;
path += _strlen(mp->path);
/* split the restant path, and get nodes */
char token[VFS_TOKEN_SIZE];
unsigned tok_len;
struct vfs_node_p *tmp = mp->root;
struct readdir_t rd;
unsigned i;
while(tmp != NULL)
{
/* get the token */
tok_len = 0;
while((*path != '/') && (*path != 0))
{
token[tok_len] = *path;
path++;
tok_len++;
}
token[tok_len] = 0;
/* read the dir and find the correct token */
struct vfs_node_p *tmp2 = NULL;
i = 0;
while((tmp2 == NULL) && (tmp->readdir(tmp, &rd, i)))
{
if(_strcmp(tmp->name, token) == 0)
{
/* get the correct node */
tmp2 = tmp->get_node(tmp, i);
if(tmp != mp->root)
{
mm_free(tmp);
}
tmp = tmp2;
if(*(path-1) == 0)
return tmp;
}
i++;
}
}
return (struct vfs_node_p *) NULL;
}
int vfs_unlink(const char *path, struct uio *uio)
{
int ret = 0;
struct vfs_path *p = NULL;
char **tokens = NULL;
/* if path is NULL pointer, or path is empty string, return NULL */
if (!path || !*path)
return -ENOENT;
char *_path = NULL;
if ((ret = vfs_parse_path(path, uio, &_path)))
goto error;
/* Canonicalize Path */
tokens = canonicalize_path(_path);
/* Get mountpoint & path */
p = vfs_get_mountpoint(tokens);
struct vnode cur, next;
cur.super = p->mountpoint;
cur.ino = p->mountpoint->ino;
cur.mode = S_IFDIR;
next.super = p->mountpoint;
char *name = NULL;
char **tok = p->tokens;
while (tok) {
char *token = *tok;
if (!*(tok + 1)) {
name = token;
break;
}
if ((ret = vfs_vfind(&cur, token, &next)))
goto error;
memcpy(&cur, &next, sizeof(cur));
++tok;
}
if ((ret = vfs_vunlink(&cur, name, uio)))
goto error;
free_tokens(tokens);
kfree(p);
kfree(_path);
return 0;
error:
if (tokens)
free_tokens(tokens);
if (p)
kfree(p);
if (_path)
kfree(_path);
return ret;
}
static int winfs_getpath(struct file *f, char *buf)
{
AcquireSRWLockShared(&f->rw_lock);
struct winfs_file *winfile = (struct winfs_file *)f;
char data[PATH_MAX + 128];
FILE_NAME_INFORMATION *info = (FILE_NAME_INFORMATION *)data;
IO_STATUS_BLOCK status_block;
NTSTATUS status;
status = NtQueryInformationFile(winfile->handle, &status_block, info, sizeof(data), FileNameInformation);
info->FileName[info->FileNameLength / 2] = 0;
if (!NT_SUCCESS(status))
{
log_error("NtQueryInformationFile(FileNameInformation) failed, status: %x", status);
__debugbreak();
}
struct mount_point mp;
if (!vfs_get_mountpoint(winfile->mp_key, &mp))
vfs_get_root_mountpoint(&mp);
int len = 0;
WCHAR *relpath;
/* Test if the file is in the mount point */
/* \??\C:\Windows, \Windows */
if (mp.win_path[4] == winfile->drive_letter &&
!wcsncmp(mp.win_path + 6, info->FileName, mp.win_path_len - 6))
{
relpath = info->FileName + mp.win_path_len - 6;
/* Copy mount point */
memcpy(buf, mp.mountpoint, mp.mountpoint_len);
len = mp.mountpoint_len;
buf += mp.mountpoint_len;
/* Remove trailling slash */
if (buf[-1] == '/')
{
buf--;
len--;
}
}
else
{
/* Not inside the point, use dos drive mount points as the last resort */
relpath = info->FileName;
buf[0] = '/';
buf[1] = winfile->drive_letter - 'A' + 'a';
buf += 2;
len = 2;
}
int r = utf16_to_utf8_filename(relpath, wcslen(relpath), buf, PATH_MAX); /* TODO: length */
if (r < 0)
{
log_error("utf16_to_utf8_filename() failed.");
__debugbreak();
}
len += r;
buf[r] = 0;
ReleaseSRWLockShared(&f->rw_lock);
if (len == 0)
{
buf[len++] = '/';
buf[len] = 0;
}
return len;
}
