static yaffsfs_Handle yaffsfs_handle[YAFFSFS_N_HANDLES];
static int yaffsfs_handlesInitialised;
-unsigned int yaffs_trace_mask;
-int yaffs_set_trace(unsigned int tm)
+unsigned yaffs_set_trace(unsigned tm)
{
- return yaffs_trace_mask=tm;
+ yaffs_trace_mask = tm;
+ return yaffs_trace_mask;
}
-unsigned int yaffs_get_trace(void)
+unsigned yaffs_get_trace(void)
{
return yaffs_trace_mask;
}
/*
- * Stuff to search for a directory from a path
+ * Stuff to handle names.
*/
return 0;
}
+int yaffsfs_CheckNameLength(const char *name)
+{
+ int retVal = 0;
+
+ int nameLength = yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH+1);
+
+ if(nameLength == 0){
+ yaffsfs_SetError(-ENOENT);
+ retVal = -1;
+ } else if (nameLength > YAFFS_MAX_NAME_LENGTH){
+ yaffsfs_SetError(-ENAMETOOLONG);
+ retVal = -1;
+ }
+ return retVal;
+}
LIST_HEAD(yaffsfs_deviceList);
return retval;
}
-#if 0
-static struct yaffs_dev *yaffsfs_FindDevice(const YCHAR *path, YCHAR **restOfPath)
-{
- yaffsfs_DeviceConfiguration *cfg = yaffsfs_configurationList;
- const YCHAR *leftOver;
- const YCHAR *p;
- struct yaffs_dev *retval = NULL;
- int thisMatchLength;
- int longestMatch = -1;
-
- /*
- * Check all configs, choose the one that:
- * 1) Actually matches a prefix (ie /a amd /abc will not match
- * 2) Matches the longest.
- */
- while(cfg && cfg->prefix && cfg->dev){
- leftOver = path;
- p = cfg->prefix;
- thisMatchLength = 0;
-
- while(*p && /* unmatched part of prefix */
- !(yaffsfs_IsPathDivider(*p) && (p[1] == 0)) &&
- *leftOver && yaffsfs_Match(*p,*leftOver)){
- p++;
- leftOver++;
- thisMatchLength++;
- }
-
-
- if((!*p || (yaffsfs_IsPathDivider(*p) && (p[1] == 0))) && /* end of prefix */
- (!*leftOver || yaffsfs_IsPathDivider(*leftOver)) && /* no more in this path name part */
- (thisMatchLength > longestMatch)){
- /* Matched prefix */
- *restOfPath = (YCHAR *)leftOver;
- retval = cfg->dev;
- longestMatch = thisMatchLength;
- }
- cfg++;
- }
- return retval;
-}
-#endif
static struct yaffs_obj *yaffsfs_FindRoot(const YCHAR *path, YCHAR **restOfPath)
{
obj->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
obj = NULL;
+
if(obj){
/* The file already exists or it might be a directory */
/* Open should fail if O_CREAT and O_EXCL are specified since
* the file exists
*/
- if((oflag & O_EXCL) && (oflag & O_CREAT)){
+ if(!errorReported && (oflag & O_EXCL) && (oflag & O_CREAT)){
openDenied = 1;
yaffsfs_SetError(-EEXIST);
errorReported = 1;
if( writeRequested && !(obj->yst_mode & S_IWRITE))
openDenied = 1;
+ if(openDenied && !errorReported ) {
+ /* Error if the file exists but permissions are refused. */
+ yaffsfs_SetError(-EACCES);
+ errorReported = 1;
+ }
+
/* Check sharing of an existing object. */
- {
+ if(!openDenied){
yaffsfs_Handle *hx;
int i;
sharedReadAllowed = 1;
}
}
- } else if((oflag & O_CREAT)) {
- /* Let's see if we can create this file */
+ }
+
+ /* If we could not open an existing object, then let's see if
+ * the directory exists. If not, error.
+ */
+ if(!obj && !errorReported){
dir = yaffsfs_FindDirectory(NULL,path,&name,0);
- if(dir && dir->my_dev->read_only){
+ if(!dir){
+ yaffsfs_SetError(-ENOTDIR);
+ errorReported = 1;
+ }
+ }
+
+ if(!obj && dir && !errorReported && (oflag & O_CREAT)) {
+ /* Let's see if we can create this file if it does not exist. */
+ if(dir->my_dev->read_only){
yaffsfs_SetError(-EINVAL);
errorReported = 1;
- } else if(dir)
+ } else
obj = yaffs_create_file(dir,name,mode,0,0);
- else {
- yaffsfs_SetError(-ENOTDIR);
+
+ if(!obj && !errorReported){
+ yaffsfs_SetError(-ENOSPC);
errorReported = 1;
}
}
+ if(!obj && dir && !errorReported && !(oflag & O_CREAT)) {
+ /* Error if the file does not exist and CREAT is not set. */
+ yaffsfs_SetError(-ENOENT);
+ errorReported = 1;
+ }
+
if(obj && !openDenied) {
int inodeId = yaffsfs_GetInodeIdForObject(obj);
yaffs_resize_file(obj,0);
} else {
yaffsfs_PutHandle(handle);
- if(!errorReported) {
- yaffsfs_SetError(!obj ? -ENOSPC : -EACCES);
- errorReported = 1;
- }
+ if(!errorReported)
+ yaffsfs_SetError(0); /* Problem */
handle = -1;
}
}
else if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE)
yaffsfs_SetError(-EISDIR);
else if(obj->my_dev->read_only)
+ yaffsfs_SetError(-EACCES);
+ else if(new_size < 0 || new_size > YAFFS_MAX_FILE_SIZE)
yaffsfs_SetError(-EINVAL);
else
result = yaffs_resize_file(obj,new_size);
yaffsfs_Unlock();
-
return (result) ? 0 : -1;
}
/* bad handle */
yaffsfs_SetError(-EBADF);
else if(obj->my_dev->read_only)
+ yaffsfs_SetError(-EACCES);
+ else if( new_size < 0 || new_size > YAFFS_MAX_FILE_SIZE)
yaffsfs_SetError(-EINVAL);
else
/* resize the file */
result = yaffs_resize_file(obj,new_size);
yaffsfs_Unlock();
-
return (result) ? 0 : -1;
}
yaffsfs_SetError(-EINVAL);
rename_allowed = 0;
} else if(olddir->my_dev != newdir->my_dev) {
- /* oops must be on same device */
- /* todo error */
+ /* Rename must be on same device */
yaffsfs_SetError(-EXDEV);
rename_allowed = 0;
} else if(obj && obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) {
int retval = 0;
+ if(amode & ~(R_OK | W_OK | X_OK)){
+ yaffsfs_SetError(-EINVAL);
+ return -1;
+ }
+
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1);
struct yaffs_dev *dev=NULL;
YCHAR *dummy;
- T(YAFFS_TRACE_ALWAYS,(TSTR("yaffs: Mounting %s" TENDSTR),path));
+ T(YAFFS_TRACE_MOUNT,(TSTR("yaffs: Mounting %s" TENDSTR),path));
yaffsfs_Lock();
struct yaffs_obj *obj = NULL;
int retVal;
-
yaffsfs_Lock();
obj = yaffsfs_FindObject(NULL,path,0,1);
struct yaffs_obj *obj = NULL;
struct yaffs_obj *target = NULL;
int retVal = 0;
- int new_nameLength = 0;
-
yaffsfs_Lock();
retVal = -1;
}
- new_nameLength = yaffs_strnlen(newname,YAFFS_MAX_NAME_LENGTH+1);
-
- if(new_nameLength == 0){
- yaffsfs_SetError(-ENOENT);
- retVal = -1;
- } else if (new_nameLength > YAFFS_MAX_NAME_LENGTH){
- yaffsfs_SetError(-ENAMETOOLONG);
- retVal = -1;
- }
+ retVal = yaffsfs_CheckNameLength(newname);
if(retVal == 0) {
link = yaffs_link_obj(newdir,newname,obj);
return yaffsfs_GetLastError();
}
+int yaffs_set_error(int error)
+{
+ /*yaffsfs_SetError does not return. So the program is assumed to have worked. */
+ yaffsfs_SetError(error);
+ return 0;
+}
+
int yaffs_dump_dev(const YCHAR *path)
{
#if 0
projects / yaffs2.git / blobdiff