/usr/include/hdf/df.h is in libhdf4-dev 4.2.10-3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF. The full HDF copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at *
* http://hdfgroup.org/products/hdf4/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* $Id: df.h 5444 2010-08-25 16:40:05Z byrn $ */
/*-----------------------------------------------------------------------------
* File: df.h
* Purpose: header file for HDF routines
* Invokes: dfi.h
* Contents:
* Structure definitions: DFddh, DFdd, DFdesc, DFdle, DF, DFdi, DFdata
* Procedure type definitions
* Global variables
* Tag definitions
* Error return codes
* Logical constants
* Remarks: This file is included with user programs
* Since it includes stdio.h etc., do not include these after df.h
*---------------------------------------------------------------------------*/
#ifndef DF_H /* avoid re-inclusion */
#define DF_H
#include "H4api_adpt.h"
/* include DF (internal) header information */
#include "hdf.h"
/*-------------------------------------------------------------------------*/
/* Type declarations */
typedef struct DFddh
{ /*format of data descriptor headers in file */
int16 dds; /* number of dds in header block */
int32 next; /* offset of next header block */
}
DFddh;
typedef struct DFdd
{ /* format of data descriptors as in file */
uint16 tag; /* data tag */
uint16 ref; /* data reference number */
int32 offset; /* offset of data element in file */
int32 length; /* number of bytes */
}
DFdd;
/* descriptor structure is same as dd structure. ###Note: may be changed */
typedef DFdd DFdesc;
/* DLE is the internal structure which stores data descriptor information */
/* It is a linked list of DDs */
typedef struct DFdle
{ /* Data List element */
struct DFdle *next; /* link to next dle */
DFddh ddh; /* To store headers */
DFdd dd[1]; /* dummy size */
}
DFdle;
/* DF is the internal structure associated with each DF file */
/* It holds information associated with the file as a whole */
/* ### Note: there are hooks for having multiple DF files open at a time */
typedef struct DF
{
DFdle *list; /* Pointer to the DLE list */
DFdle *last_dle; /* last_dle and last_dd are used in searches */
/* to indicate element returned */
/* by previous call to DFfind */
DFdd *up_dd; /* DD of element being read/updated, */
/* used by DFstart */
uint16 last_tag; /* Last tag searched for by DFfind */
uint16 last_ref; /* Last reference number searched for */
intn type; /* 0= not in use, 1= normal, -1 = multiple */
/* this is a hook for when */
/* multiple files are open */
intn access; /* permitted access types: */
/* 0=none, 1=r, 2=w, 3=r/w */
intn changed; /* True if anything in DDs modified */
/* since last write */
intn last_dd; /* see last_dle */
intn defdds; /* default numer of DD's in each block */
intn up_access; /* access permissions to element being */
/* read/updated. Used by DFstart */
/* File handle is a file pointer or file descriptor depending on whether */
/* we use buffered or unbuffered I/O. But, since this structure is a */
/* fake, it doesn't matter whether I/O is buffered or not. */
intn file; /* file descriptor */
}
DF;
typedef struct DFdata
{ /* structure for returning status information */
int32 version; /* version number of program */
}
DFdata;
/*--------------------------------------------------------------------------*/
/* Procedure types */
#if defined c_plusplus || defined __cplusplus
extern "C"
{
#endif /* c_plusplus || __cplusplus */
/* prototypes for dfstubs.c */
HDFLIBAPI DF *DFopen
(char *name, int acc_mode, int ndds);
HDFLIBAPI int DFclose
(DF * dfile);
HDFLIBAPI int DFdescriptors
(DF * dfile, DFdesc ptr[], int begin, int num);
HDFLIBAPI int DFnumber
(DF * dfile, uint16 tag);
HDFLIBAPI int DFsetfind
(DF * dfile, uint16 tag, uint16 ref);
HDFLIBAPI int DFfind
(DF * dfile, DFdesc * ptr);
HDFLIBAPI int DFaccess
(DF * dfile, uint16 tag, uint16 ref, char *acc_mode);
HDFLIBAPI int DFstart
(DF * dfile, uint16 tag, uint16 ref, char *acc_mode);
HDFLIBAPI int32 DFread
(DF * dfile, char *ptr, int32 len);
HDFLIBAPI int32 DFseek
(DF * dfile, int32 offset);
HDFLIBAPI int32 DFwrite
(DF * dfile, char *ptr, int32 len);
HDFLIBAPI int DFupdate
(DF * dfile);
HDFLIBAPI int DFstat
(DF * dfile, DFdata * dfinfo);
HDFLIBAPI int32 DFgetelement
(DF * dfile, uint16 tag, uint16 ref, char *ptr);
HDFLIBAPI int32 DFputelement
(DF * dfile, uint16 tag, uint16 ref, char *ptr, int32 len);
HDFLIBAPI int DFdup
(DF * dfile, uint16 itag, uint16 iref, uint16 otag, uint16 oref);
HDFLIBAPI int DFdel
(DF * dfile, uint16 tag, uint16 ref);
HDFLIBAPI uint16 DFnewref
(DF * dfile);
HDFLIBAPI int DFishdf
(char *filename);
HDFLIBAPI int DFerrno
(void);
HDFLIBAPI int DFIerr
(DF * dfile);
HDFLIBAPI int DFImemcopy
(char *from, char *to, int length);
HDFLIBAPI void *DFIgetspace
(uint32 qty);
HDFLIBAPI void *DFIfreespace
(void *ptr);
HDFLIBAPI int DFIc2fstr
(char *str, int len);
HDFLIBAPI char *DFIf2cstring
(_fcd fdesc, intn len);
/* prototypes for dfconv.c */
HDFLIBAPI int DFconvert
(uint8 *source, uint8 *dest, int ntype, int sourcetype, int desttype, int32 size);
#if defined c_plusplus || defined __cplusplus
}
#endif /* c_plusplus || __cplusplus */
/*--------------------------------------------------------------------------*/
/* Global Variables */
#ifndef DFMASTER
HDFLIBAPI
#endif /*DFMASTER */
int DFerror; /* Error code for DF routines */
#define DFSETERR(error) (DFerror=(DFerror?DFerror:error))
#define DFTOFID(df) (int32)(df->list)
#endif /* DF_H */
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