mfm55getobjinfo.c

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#ifdef FSS_FTR

#define ACCESS_RIGHTS_INTERNAL_MFM
#define MFM55GETOBJINFO_C

#include "mFm.h"

#undef  FILE_NUMBER
#define FILE_NUMBER 55 


#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 1

void mFm55_01GetObjInfo( void * pp_LayerContext,void * pp_Param)
{

   t_fs_llGetObjInfo * pl_Param = (t_fs_llGetObjInfo *) pp_Param;

   char * pl_CurrPath = pl_Param->p_RestOfPath;
   char * pl_NextSlatch;
   u32    vl_ObjNameSize;
   t_ObjectInfo * pl_ObjInfo = pl_Param->p_ObjInfo;
   t_DirFileInfo * pl_DirFileInfo = (t_DirFileInfo *) &pl_ObjInfo->a_LowLayerPrivate[0];
   u8 vl_LastToken = FALSE;


    /* Is the path empty ( then we are at base of current working directory ) */
    if ( pl_CurrPath == NIL )
    {
	/* If no object is knowed we are at root of the volume */
    	if ( pl_ObjInfo->s_FileStatus.v_ObjExist == FALSE )
	{
	    /* ID is set to 0, object to exist and to type directory */
 	    pl_ObjInfo->v_ObjID = 0;
	    pl_ObjInfo->s_FileStatus.v_ObjExist = TRUE;
	    pl_ObjInfo->s_FileStatus.v_ObjIsFile = FALSE;
	}

	/* Size of last token in path is set to 0 */
	pl_ObjInfo->v_SizeOfLastTokenInPath = 0;

        /* Get to lower layer to have size of object */
        MC_MFM_LL_GET_FILE_SIZE( pl_ObjInfo->v_ObjID, &pl_ObjInfo->v_FileSize, pl_Param->p_Status);

	/* If status not OK return ( object in CWD deleted, acces time out ....) */
	if ( *(pl_Param->p_Status) != FS_OK ) return;


	/* Updates directory file info */
	pl_DirFileInfo->v_Exist = TRUE;
	pl_DirFileInfo->v_TypeOfObj = FS_OBJECT_DIR;
	pl_DirFileInfo->v_IdOfObj = pl_ObjInfo->v_ObjID;
	pl_DirFileInfo->v_FileSize = pl_ObjInfo->v_FileSize;

	return;
    }

    /* If an existing object is already knowed we begin to search from this ID */
    if ( pl_ObjInfo->s_FileStatus.v_ObjExist )
    {
 	pl_ObjInfo->v_DirID = pl_ObjInfo->v_ObjID;
    }
    /* Else we are at root of volume */
    else
    {
	pl_ObjInfo->v_DirID = 0;
    }


    /* The directory exist */
    pl_ObjInfo->s_FileStatus.v_DirExist = TRUE;

    /* We suppose the object do not exist */
    pl_ObjInfo->s_FileStatus.v_ObjExist = FALSE;

    for(;;)
    {

    	/* Search size of object name until next '/'  or '\0' character */
    	pl_NextSlatch = strchr( pl_CurrPath, '/');
    	if ( pl_NextSlatch != 0 )
	{
	     vl_ObjNameSize = ((u32) (pl_NextSlatch - pl_CurrPath ));
	
	}
    	else /* No slatch found -> it is the last token (object name) */
    	{
	    /* Determine lenght of name */
	    vl_ObjNameSize = strlen(pl_CurrPath);

	    /* Note that it is the last token */
	    vl_LastToken = TRUE;
    	}

	/* If name of size is null we are in the situation where we have "//" or 
		"/\0" ( the path end with a '/' ) in the path,
		 a so path is not acceptable return an error */

    	if ( vl_ObjNameSize == 0 ) 
	{
	    *(pl_Param->p_Status) = FS_ENOENT;
	    return;
	}

	/* A token exist search it */
/* + LMSqa27027 removed */
#if 0
/* LMSqa01565 - 19/01/04 - tcmc_wbm */

#endif
/* - LMSqa27027 removed */
	mFm80_03SearchObjByNameInDir( pl_ObjInfo->v_DirID, pl_CurrPath, vl_ObjNameSize,
/* + LMSqa27027 removed */
#if 0
							 pl_DirFileInfo, pl_Param->p_Status, pp_LayerContext );								 
/* End LMSqa01565 */

#endif
/* - LMSqa27027 removed */
/* + LMSqa27027 new */
							 pl_DirFileInfo, pl_Param->p_Status );								 
/* - LMSqa27027 new */

	/* If status not OK return ( object in CWD deleted, acces time out ....) */
	if ( *(pl_Param->p_Status) != FS_OK ) return;


      /* Update object info structure */
      /*------------------------------*/

	/* If it is the last token the object information is to update */
  	if ( vl_LastToken )
	{
	    /* Object exist ? */
	    if ( pl_DirFileInfo->v_Exist ) 
	    {
	    	/* Update ID of object */
   	    	pl_ObjInfo->v_ObjID = pl_DirFileInfo->v_IdOfObj;

		/* Initialize file size to 0 */
		pl_ObjInfo->v_FileSize = 0;

    	 	/* Get to lower layer to have size of file */
    	    	MC_MFM_LL_GET_FILE_SIZE( pl_DirFileInfo->v_IdOfObj, &pl_ObjInfo->v_FileSize, 
									pl_Param->p_Status);

		/* If status not OK return ( object in CWD deleted, acces time out ....) */
		if (( *(pl_Param->p_Status) != FS_OK ) &&
		    ( *(pl_Param->p_Status) != FSS_ERR_MEMORY_CORRUPTED ))
		    return;

	    	/* Update existence of object */
   	    	pl_ObjInfo->s_FileStatus.v_ObjExist = TRUE;

	    	/* Update type of object */
	    	if ( pl_DirFileInfo->v_TypeOfObj == FS_OBJECT_FILE)
				 pl_ObjInfo->s_FileStatus.v_ObjIsFile = TRUE;
	    	else pl_ObjInfo->s_FileStatus.v_ObjIsFile = FALSE;

		/* Update state of object */
		if ( pl_ObjInfo->v_FileSize == 0) pl_ObjInfo->s_FileStatus.v_ObjIsEmpty = TRUE;
		else pl_ObjInfo->s_FileStatus.v_ObjIsEmpty = FALSE;

	    }
	        /* Object do not exist */
	    else pl_ObjInfo->s_FileStatus.v_ObjExist = FALSE;

	    /* End of path reached exit the loop */
	    break;
	}
	else  /* It is not the last token so it is the directory info which is to update */
	{
	    /* Object exist ? */
	    if ( pl_DirFileInfo->v_Exist )
	    {
		/* Is the object a directory */
		if ( pl_DirFileInfo->v_TypeOfObj == FS_OBJECT_DIR )
		{
	    	    /* Update ID of directory */
   	    	    pl_ObjInfo->v_DirID = pl_DirFileInfo->v_IdOfObj;

		    /* Point on rest of path */
		    pl_CurrPath = pl_NextSlatch +1;

		}
		else /* It is a file -> error because the path is not finish 
			and we find a file */
		{
		    /* Set the error invalid path */
	    	    *(pl_Param->p_Status) = FS_ENOTDIR;

		    /* Clear existence of dir and obj */
		    pl_ObjInfo->s_FileStatus.v_ObjExist = FALSE;
		    pl_ObjInfo->s_FileStatus.v_DirExist = FALSE;

	    	    return;
		    
		}
	    }
	    else /* object do not exist like it is not the last token -> error */
	    {
		/* Set the error invalid path */
	    	*(pl_Param->p_Status) = FS_ENOENT;


		/* Clear existence of dir and obj */
		pl_ObjInfo->s_FileStatus.v_ObjExist = FALSE;
		pl_ObjInfo->s_FileStatus.v_DirExist = FALSE;
		return;
	    }
	}
    }  
    /* Update displacement and size of last token in object info */
    pl_ObjInfo->p_LastTokenInPath = pl_CurrPath;
    pl_ObjInfo->v_SizeOfLastTokenInPath = vl_ObjNameSize;

}

#endif /* FSS_FTR */