return retval;
}
+static int yaffsfs_CheckPath(const YCHAR *path)
+{
+ int n=0;
+ int divs=0;
+ while(*path && n < YAFFS_MAX_NAME_LENGTH && divs < 100){
+ if(yaffsfs_IsPathDivider(*path)){
+ n=0;
+ divs++;
+ } else
+ n++;
+ path++;
+ }
+
+ return (*path) ? -1 : 0;
+}
+
/* FindMountPoint only returns a dev entry if the path is a mount point */
static struct yaffs_dev *yaffsfs_FindMountPoint(const YCHAR *path)
{
u8 readRequested;
u8 writeRequested;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
/* O_EXCL only has meaning if O_CREAT is specified */
if(!(oflag & O_CREAT))
oflag &= ~(O_EXCL);
/* Not a reading handle */
yaffsfs_SetError(-EINVAL);
totalRead = -1;
+ } else if(nbyte > YAFFS_MAX_FILE_SIZE){
+ yaffsfs_SetError(-EINVAL);
+ totalRead = -1;
} else {
if(isPread)
startPos = offset;
struct yaffs_obj *dir = NULL;
int result = YAFFS_FAIL;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1,&dir);
h = yaffsfs_GetHandlePointer(fd);
obj = yaffsfs_GetHandleObject(fd);
- if(!h || !obj){
- /* bad handle */
+ if(!h || !obj)
yaffsfs_SetError(-EBADF);
- } else {
+ else if(offset > YAFFS_MAX_FILE_SIZE)
+ yaffsfs_SetError(-EINVAL);
+ else {
if(whence == SEEK_SET){
if(offset >= 0)
pos = offset;
YCHAR *name;
int result = YAFFS_FAIL;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,0,NULL);
}
-int yaffs_rmdir(const YCHAR *path)
-{
- return yaffsfs_DoUnlink(path,1);
-}
-
int yaffs_unlink(const YCHAR *path)
{
return yaffsfs_DoUnlink(path,0);
yaffsfs_Lock();
+ if(yaffsfs_CheckPath(newPath) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
olddir = yaffsfs_FindDirectory(NULL,oldPath,&oldname,0);
newdir = yaffsfs_FindDirectory(NULL,newPath,&newname,0);
obj = yaffsfs_FindObject(NULL,oldPath,0,0,NULL);
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1,&dir);
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1,&dir);
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1,&dir);
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1,&dir);
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1, &dir);
int retval = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
if(amode & ~(R_OK | W_OK | X_OK)){
yaffsfs_SetError(-EINVAL);
return -1;
struct yaffs_obj *dir=NULL;
int retVal = -1;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
if(mode & ~(0777)){
yaffsfs_SetError(-EINVAL);
return -1;
}
-int yaffs_mkdir(const YCHAR *path, mode_t mode)
+static int yaffsfs_alt_dir_path(const YCHAR *path, YCHAR **ret_path)
{
- struct yaffs_obj *parent = NULL;
- struct yaffs_obj *dir = NULL;
- YCHAR *name;
- YCHAR *use_path = NULL;
- int path_length = 0;
- int retVal= -1;
+ YCHAR *alt_path = NULL;
+ int path_length;
int i;
-
/*
* We don't have a definition for max path length.
* We will use 3 * max name length instead.
*/
-
+ *ret_path = NULL;
path_length = strnlen(path,(YAFFS_MAX_NAME_LENGTH+1)*3 +1);
/* If the last character is a path divider, then we need to
*/
if(path_length > 0 &&
yaffsfs_IsPathDivider(path[path_length-1])){
- use_path = YMALLOC(path_length + 1);
- if(!use_path){
- yaffsfs_SetError(-ENOMEM);
+ alt_path = YMALLOC(path_length + 1);
+ if(!alt_path)
return -1;
- }
- strcpy(use_path, path);
+ strcpy(alt_path, path);
for(i = path_length-1;
- i >= 0 && yaffsfs_IsPathDivider(use_path[i]);
+ i >= 0 && yaffsfs_IsPathDivider(alt_path[i]);
i--)
- use_path[i] = (YCHAR) 0;
- path = use_path;
+ alt_path[i] = (YCHAR) 0;
+ }
+ *ret_path = alt_path;
+ return 0;
+}
+
+int yaffs_mkdir(const YCHAR *path, mode_t mode)
+{
+ struct yaffs_obj *parent = NULL;
+ struct yaffs_obj *dir = NULL;
+ YCHAR *name;
+ YCHAR *alt_path = NULL;
+ int retVal= -1;
+
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
+ if(yaffsfs_alt_dir_path(path, &alt_path) < 0){
+ yaffsfs_SetError(-ENOMEM);
+ return -1;
}
+ if(alt_path)
+ path = alt_path;
yaffsfs_Lock();
parent = yaffsfs_FindDirectory(NULL,path,&name,0);
- if(parent && yaffs_strnlen(name,5) == 0){
+ if(!parent)
+ yaffsfs_SetError(-ENOTDIR);
+ else if(parent && yaffs_strnlen(name,5) == 0){
/* Trying to make the root itself */
yaffsfs_SetError(-EEXIST);
- } else if(parent && parent->my_dev->read_only){
- yaffsfs_SetError(-EINVAL);
- } else {
- if(parent)
- dir = yaffs_create_dir(parent,name,mode,0,0);
+ } else if(parent && parent->my_dev->read_only)
+ yaffsfs_SetError(-EROFS);
+ else {
+ dir = yaffs_create_dir(parent,name,mode,0,0);
if(dir)
retVal = 0;
- else {
- if(!parent)
- yaffsfs_SetError(-ENOENT); /* missing path */
- else if (yaffs_find_by_name(parent,name))
- yaffsfs_SetError(-EEXIST); /* the name already exists */
- else
- yaffsfs_SetError(-ENOSPC); /* just assume no space */
- retVal = -1;
- }
+ else if (yaffs_find_by_name(parent,name))
+ yaffsfs_SetError(-EEXIST); /* the name already exists */
+ else
+ yaffsfs_SetError(-ENOSPC); /* just assume no space */
}
yaffsfs_Unlock();
- if(use_path)
- YFREE(use_path);
+ if(alt_path)
+ YFREE(alt_path);
return retVal;
}
+int yaffs_rmdir(const YCHAR *path)
+{
+ int result;
+ YCHAR *alt_path;
+
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
+ if(yaffsfs_alt_dir_path(path, &alt_path) < 0){
+ yaffsfs_SetError(-ENOMEM);
+ return -1;
+ }
+ if(alt_path)
+ path = alt_path;
+ result = yaffsfs_DoUnlink(path,1);
+ if(alt_path)
+ YFREE(alt_path);
+ return result;
+}
+
+
void * yaffs_getdev(const YCHAR *path)
{
struct yaffs_dev *dev=NULL;
T(YAFFS_TRACE_MOUNT,(TSTR("yaffs: Mounting %s" TENDSTR),path));
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
yaffsfs_InitHandles();
int retVal=-1;
struct yaffs_dev *dev=NULL;
YCHAR *dummy;
+
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
yaffsfs_Lock();
dev = yaffsfs_FindDevice(path,&dummy);
struct yaffs_dev *dev=NULL;
yaffsfs_Handle *yh;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
dev = yaffsfs_FindMountPoint(path);
if(dev){
int retVal=-1;
struct yaffs_dev *dev=NULL;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
dev = yaffsfs_FindMountPoint(path);
if(dev){
struct yaffs_dev *dev=NULL;
YCHAR *dummy;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
dev = yaffsfs_FindDevice(path,&dummy);
if(dev && dev->is_mounted){
struct yaffs_dev *dev=NULL;
YCHAR *dummy;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
dev = yaffsfs_FindDevice(path,&dummy);
if(dev && dev->is_mounted){
- retVal = (dev->param.end_block - dev->param.start_block + 1) - dev->param.n_reserved_blocks;
+ retVal = (dev->param.end_block - dev->param.start_block + 1) -
+ dev->param.n_reserved_blocks;
retVal *= dev->param.chunks_per_block;
retVal *= dev->data_bytes_per_chunk;
struct yaffs_dev *dev=NULL;
YCHAR *dummy;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
dev = yaffsfs_FindDevice(path,&dummy);
if(dev && dev->is_mounted) {
struct yaffs_obj *obj = NULL;
yaffsfs_DirectorySearchContext *dsc = NULL;
+ if(yaffsfs_CheckPath(dirname) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,dirname,0,1,NULL);
int retVal= -1;
int mode = 0; /* ignore for now */
+ if(yaffsfs_CheckPath(newpath) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
yaffsfs_Lock();
parent = yaffsfs_FindDirectory(NULL,newpath,&name,0);
- if(parent && parent->my_dev->read_only)
- yaffsfs_SetError(-EINVAL);
+ if(!parent)
+ yaffsfs_SetError(-ENOTDIR);
+ else if( strlen(name) < 1)
+ yaffsfs_SetError(-ENOENT);
+ else if(parent->my_dev->read_only)
+ yaffsfs_SetError(-EROFS);
else if(parent){
obj = yaffs_create_symlink(parent,name,mode,0,0,oldpath);
if(obj)
yaffsfs_SetError(-ENOSPC); /* just assume no space for now */
retVal = -1;
}
- } else {
- yaffsfs_SetError(-EINVAL);
- retVal = -1;
}
yaffsfs_Unlock();
struct yaffs_obj *lnk = NULL;
int retVal = -1;
+ if(yaffsfs_CheckPath(linkpath) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,oldpath,0,1,NULL);
pathname=pathname;
mode=mode;
dev=dev;
+
+ yaffsfs_SetError(-EINVAL);
return -1;
}
{
struct yaffs_obj *obj;
+ if(yaffsfs_CheckPath(path) < 0){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
obj = yaffsfs_FindObject(NULL,path,0,1,NULL);
- return yaffsfs_CountHandles(obj);
+ if(obj)
+ return yaffsfs_CountHandles(obj);
+ else
+ return -1;
}
int yaffs_get_error(void)