/usr/include/bind-export/isccc/sexpr.h is in libbind-export-dev 1:9.10.3.dfsg.P4-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Portions Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC")
* Portions Copyright (C) 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Portions Copyright (C) 2001 Nominum, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: sexpr.h,v 1.11 2007/08/28 07:20:43 tbox Exp $ */
#ifndef ISCCC_SEXPR_H
#define ISCCC_SEXPR_H 1
/*! \file isccc/sexpr.h */
#include <stdio.h>
#include <isc/lang.h>
#include <isccc/types.h>
ISC_LANG_BEGINDECLS
/*% dotted pair structure */
struct isccc_dottedpair {
isccc_sexpr_t *car;
isccc_sexpr_t *cdr;
};
/*% iscc_sexpr structure */
struct isccc_sexpr {
unsigned int type;
union {
char * as_string;
isccc_dottedpair_t as_dottedpair;
isccc_region_t as_region;
} value;
};
#define ISCCC_SEXPRTYPE_NONE 0x00 /*%< Illegal. */
#define ISCCC_SEXPRTYPE_T 0x01
#define ISCCC_SEXPRTYPE_STRING 0x02
#define ISCCC_SEXPRTYPE_DOTTEDPAIR 0x03
#define ISCCC_SEXPRTYPE_BINARY 0x04
#define ISCCC_SEXPR_CAR(s) (s)->value.as_dottedpair.car
#define ISCCC_SEXPR_CDR(s) (s)->value.as_dottedpair.cdr
isccc_sexpr_t *
isccc_sexpr_cons(isccc_sexpr_t *car, isccc_sexpr_t *cdr);
isccc_sexpr_t *
isccc_sexpr_tconst(void);
isccc_sexpr_t *
isccc_sexpr_fromstring(const char *str);
isccc_sexpr_t *
isccc_sexpr_frombinary(const isccc_region_t *region);
void
isccc_sexpr_free(isccc_sexpr_t **sexprp);
void
isccc_sexpr_print(isccc_sexpr_t *sexpr, FILE *stream);
isccc_sexpr_t *
isccc_sexpr_car(isccc_sexpr_t *list);
isccc_sexpr_t *
isccc_sexpr_cdr(isccc_sexpr_t *list);
void
isccc_sexpr_setcar(isccc_sexpr_t *pair, isccc_sexpr_t *car);
void
isccc_sexpr_setcdr(isccc_sexpr_t *pair, isccc_sexpr_t *cdr);
isccc_sexpr_t *
isccc_sexpr_addtolist(isccc_sexpr_t **l1p, isccc_sexpr_t *l2);
isc_boolean_t
isccc_sexpr_listp(isccc_sexpr_t *sexpr);
isc_boolean_t
isccc_sexpr_emptyp(isccc_sexpr_t *sexpr);
isc_boolean_t
isccc_sexpr_stringp(isccc_sexpr_t *sexpr);
isc_boolean_t
isccc_sexpr_binaryp(isccc_sexpr_t *sexpr);
char *
isccc_sexpr_tostring(isccc_sexpr_t *sexpr);
isccc_region_t *
isccc_sexpr_tobinary(isccc_sexpr_t *sexpr);
ISC_LANG_ENDDECLS
#endif /* ISCCC_SEXPR_H */
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