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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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/*
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* sexpr.h : S-Expression interfaces needed to communicate with the Xen Daemon
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*
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* Copyright (C) 2005
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*
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License. See the file COPYING.LIB in the main directory of this
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* archive for more details.
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*/
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#ifndef _LIBVIR_SEXPR_H_
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#define _LIBVIR_SEXPR_H_
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#include <sys/types.h>
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enum sexpr_type {
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SEXPR_NIL,
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SEXPR_CONS,
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SEXPR_VALUE,
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};
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struct sexpr {
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enum sexpr_type kind;
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union {
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struct {
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struct sexpr *car;
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struct sexpr *cdr;
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};
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char *value;
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};
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};
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/* conversion to/from strings */
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size_t sexpr2string (struct sexpr *sexpr,
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char *buffer,
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size_t n_buffer);
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struct sexpr * string2sexpr (const char *buffer);
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/* constructors and destructors */
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struct sexpr * sexpr_nil (void);
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struct sexpr * sexpr_string (const char *str,
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ssize_t len);
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struct sexpr * sexpr_cons (struct sexpr *car,
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struct sexpr *cdr);
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struct sexpr * sexpr_append (struct sexpr *lst,
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struct sexpr *item);
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void sexpr_free (struct sexpr *sexpr);
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/* lookup in S-Expressions */
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const char * sexpr_node (struct sexpr *sexpr,
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const char *node);
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struct sexpr * sexpr_lookup (struct sexpr *sexpr,
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const char *node);
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#endif
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