static int dfs_uffs_seek(struct dfs_fd* file,
rt_off_t offset)
{
int result;
/* set offset as current offset */
if (file->type == FT_DIRECTORY)
{
uffs_rewinddir((uffs_DIR *)(file->data));
result = uffs_seekdir((uffs_DIR *)(file->data), offset/sizeof(struct dirent));
if (result >= 0)
{
file->pos = offset;
return offset;
}
}
else if (file->type == FT_REGULAR)
{
result = uffs_seek((int)(file->data), offset, USEEK_SET);
if (result >= 0)
return offset;
}
return uffs_result_to_dfs(uffs_get_error());
}
/// dir is the DOS equivalent of ls
static byte DirCmd(const unsigned char *cmd, const CLS1_ConstStdIOType *io) {
/* precondition: cmd starts with "dir" */
uffs_DIR *curdir = cwd;
char d_name[UFFS_PATHSIZE];
byte res = ERR_OK;
if (*(cmd + sizeof("dir") - 1) == ' ')
{ /* space after "dir": read name */
if (UTIL1_ReadEscapedName(cmd + sizeof("dir"),
(unsigned char*)d_name, sizeof(d_name), NULL,
NULL, NULL) == ERR_OK)
{
curdir = uffs_opendir(d_name);
res = uffs_get_error();
}
else
{
CLS1_SendStr((unsigned char*) "reading directory name failed!\r\n",
io->stdErr);
res = ERR_FAILED;
}
}
// else use current directory
struct uffs_dirent *entry;
if (curdir == NULL)
{
CLS1_SendStr((unsigned char*) "can't open dir\r\n", io->stdErr);
res = ERR_FAILED;
}
uffs_rewinddir(curdir);
while ((entry = uffs_readdir(curdir)))
{
MSGLN( "%s", entry->d_name);
}
// unless it was cwd close it
if (*(cmd + sizeof("dir") - 1) == ' ')
uffs_closedir(curdir);
return res;
}
