static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
#endif
{
yaffs_Object *obj;
struct inode *inode = NULL;
yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
yaffs_GrossLock(dev);
T(YAFFS_TRACE_OS,
(KERN_DEBUG "yaffs_lookup for %d:%s\n",
yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
obj =
yaffs_FindObjectByName(yaffs_InodeToObject(dir),
dentry->d_name.name);
obj = yaffs_GetEquivalentObject(obj);
yaffs_GrossUnlock(dev);
if (obj) {
T(YAFFS_TRACE_OS,
(KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId));
inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
if (inode) {
T(YAFFS_TRACE_OS,
(KERN_DEBUG "yaffs_loookup dentry \n"));
#if 0
d_add(dentry, inode);
return NULL;
#endif
}
} else {
T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n"));
}
d_add(dentry, inode);
return NULL;
}
static yaffs_Object *yaffsfs_FindObject(yaffs_Object *relativeDirectory, const char *path,int symDepth)
{
yaffs_Object *dir;
char *name;
dir = yaffsfs_FindDirectory(relativeDirectory,path,&name,symDepth);
if(dir && *name)
{
return yaffs_FindObjectByName(dir,name);
}
return dir;
}
static yaffs_Object *yaffsfs_DoFindDirectory(yaffs_Object *startDir,const char *path,char **name,int symDepth)
{
yaffs_Object *dir;
char *restOfPath;
char str[YAFFS_MAX_NAME_LENGTH+1];
int i;
if(symDepth > YAFFSFS_MAX_SYMLINK_DEREFERENCES)
{
return NULL;
}
if(startDir)
{
dir = startDir;
restOfPath = (char *)path;
}
else
{
dir = yaffsfs_FindRoot(path,&restOfPath);
}
while(dir)
{
while(*restOfPath == '/')
{
restOfPath++; // get rid of '/'
}
*name = restOfPath;
i = 0;
while(*restOfPath && *restOfPath != '/')
{
if (i < YAFFS_MAX_NAME_LENGTH)
{
str[i] = *restOfPath;
str[i+1] = '\0';
i++;
}
restOfPath++;
}
if(!*restOfPath)
{
// got to the end of the string
return dir;
}
else
{
if(TEE_StrCmp(str,".") == 0)
{
// Do nothing
}
else if(TEE_StrCmp(str,"..") == 0)
{
dir = dir->parent;
}
else
{
dir = yaffs_FindObjectByName(dir,str);
while(dir && dir->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
{
dir = yaffsfs_FollowLink(dir,symDepth);
}
if(dir && dir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
{
dir = NULL;
}
}
}
}
// directory did not exist.
return NULL;
}
