static byte MkdirCmd(const unsigned char *cmd, const CLS1_ConstStdIOType *io) {
/* precondition: cmd starts with "mkdir" */
char d_name[UFFS_PATHSIZE];
byte res = ERR_OK;
if (UTIL1_ReadEscapedName(cmd + sizeof("mkdir"),
(unsigned char*)d_name, sizeof(d_name), NULL,
NULL, NULL) == ERR_OK)
{
res = uffs_mkdir( d_name );
}
else
{
CmdUsageError(cmd, (unsigned char*)"mkdir directoryName", io);
res = ERR_FAILED;
}
return res;
}
/** mkdir <dir> */
static int cmd_mkdir(int argc, char *argv[])
{
const char *name;
CHK_ARGC(2, 0);
name = argv[1];
if (uffs_mkdir(name) < 0) {
MSGLN("Create %s fail, err: %d", name, uffs_get_error());
return -1;
}
else {
MSGLN("Create %s succ.", name);
}
return 0;
}
static int dfs_uffs_open(struct dfs_fd* file)
{
int fd;
int oflag, mode;
char * file_path;
oflag = file->flags;
if (oflag & DFS_O_DIRECTORY) /* operations about dir */
{
uffs_DIR * dir;
if (oflag & DFS_O_CREAT) /* create a dir*/
{
if (uffs_mkdir(file->path) < 0)
return uffs_result_to_dfs(uffs_get_error());
}
/* open dir */
file_path = rt_malloc(FILE_PATH_MAX);
if(file_path == RT_NULL)
return -DFS_STATUS_ENOMEM;
if (file->path[0] == '/' && !(file->path[1] == 0))
rt_snprintf(file_path, FILE_PATH_MAX, "%s/", file->path);
else
{
file_path[0] = '/';
file_path[1] = 0;
}
dir = uffs_opendir(file_path);
if (dir == RT_NULL)
{
rt_free(file_path);
return uffs_result_to_dfs(uffs_get_error());
}
/* save this pointer,will used by dfs_uffs_getdents*/
file->data = dir;
rt_free(file_path);
return DFS_STATUS_OK;
}
/* regular file operations */
/* int uffs_open(const char *name, int oflag, ...); what is this?
* uffs_open can open dir!! **/
mode = 0;
if (oflag & DFS_O_RDONLY) mode |= UO_RDONLY;
if (oflag & DFS_O_WRONLY) mode |= UO_WRONLY;
if (oflag & DFS_O_RDWR) mode |= UO_RDWR;
/* Opens the file, if it is existing. If not, a new file is created. */
if (oflag & DFS_O_CREAT) mode |= UO_CREATE;
/* Creates a new file. If the file is existing, it is truncated and overwritten. */
if (oflag & DFS_O_TRUNC) mode |= UO_TRUNC;
/* Creates a new file. The function fails if the file is already existing. */
if (oflag & DFS_O_EXCL) mode |= UO_EXCL;
fd = uffs_open(file->path, mode);
if (fd < 0)
{
return uffs_result_to_dfs(uffs_get_error());
}
/* save this pointer, it will be used when calling read()£¬write(),
* flush(), seek(), and will be free when calling close()*/
file->data = (void *)fd;
file->pos = uffs_seek(fd, 0, USEEK_CUR);
file->size = uffs_seek(fd, 0, USEEK_END);
uffs_seek(fd, file->pos, USEEK_SET);
if (oflag & DFS_O_APPEND)
{
file->pos = uffs_seek(fd, 0, USEEK_END);
}
return 0;
}
