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/*
* $Id: store.h 1074 2008-06-04 00:08:43Z hubert@u.washington.edu $
*
* ========================================================================
* Copyright 2013-2022 Eduardo Chappa
* Copyright 2006-2008 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#ifndef PITH_STORE_INCLUDED
#define PITH_STORE_INCLUDED
#include "../pith/filttype.h"
#ifdef SMIME
#include <openssl/bio.h>
#endif /* SMIME */
typedef enum {CharStarStar, CharStar, FileStar,
#ifdef SMIME
BioType,
#endif /* SMIME */
TmpFileStar, PipeStar, ExternalText} SourceType;
/*
* typedef used by storage object routines
*/
typedef struct store_object {
unsigned char *dp; /* current position in data */
unsigned char *eod; /* end of current data */
void *txt; /* container's data */
unsigned char *eot; /* end of space alloc'd for data */
int (*writec)(int, struct store_object *);
int (*readc)(unsigned char *, struct store_object *);
int (*puts)(struct store_object *, char *);
fpos_t used; /* amount of object in use */
char *name; /* optional object name */
SourceType src; /* what we're copying into */
short flags; /* flags relating to object use */
CBUF_S cb;
PARAMETER *attr; /* attribute list */
} STORE_S;
#define so_writec(c, so) ((*(so)->writec)((c), (so)))
#define so_readc(c, so) ((*(so)->readc)((c), (so)))
#define so_puts(so, s) ((*(so)->puts)((so), (s)))
/* exported prototypes */
STORE_S *so_get(SourceType, char *, int);
int so_give(STORE_S **);
int so_nputs(STORE_S *, char *, long);
int so_seek(STORE_S *, long, int);
int so_truncate(STORE_S *, long);
long so_tell(STORE_S *);
char *so_attr(STORE_S *, char *, char *);
int so_release(STORE_S *);
void *so_text(STORE_S *);
char *so_fgets(STORE_S *, char *, size_t);
void so_register_external_driver(STORE_S *(*)(void),
int (*)(STORE_S **),
int (*)(int, STORE_S *),
int (*)(unsigned char *, STORE_S *),
int (*)(STORE_S *, char *),
int (*)(STORE_S *, long, int),
int (*)(STORE_S *, off_t),
int (*)(STORE_S *));
#endif /* PITH_STORE_INCLUDED */
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