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/*
* Copyright (C) 2010 Citrix Ltd.
* Author Ian Jackson <ian.jackson@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
#ifndef LIBXLUTIL_H
#define LIBXLUTIL_H
#include <stdio.h>
#include "libxl.h"
/* Unless otherwise stated, all functions return an errno value. */
typedef struct XLU_Config XLU_Config;
typedef struct XLU_ConfigList XLU_ConfigList;
XLU_Config *xlu_cfg_init(FILE *report, const char *report_filename);
/* 0 means we got ENOMEM. */
/* report_filename is copied; report is saved and must remain valid
* until the Config is destroyed. */
int xlu_cfg_readfile(XLU_Config*, const char *real_filename);
/* If this fails, then it is undefined behaviour to call xlu_cfg_get_...
* functions. You have to just xlu_cfg_destroy. */
void xlu_cfg_destroy(XLU_Config*);
/* All of the following print warnings to "report" if there is a problem.
* Return values are:
* 0 OK
* ESRCH not defined
* EINVAL value found but wrong format for request (prints warning)
* ERANGE value out of range (from strtol)
*/
int xlu_cfg_get_string(const XLU_Config*, const char *n, const char **value_r);
int xlu_cfg_get_long(const XLU_Config*, const char *n, long *value_r);
int xlu_cfg_get_list(const XLU_Config*, const char *n,
XLU_ConfigList **list_r /* may be 0 */,
int *entries_r /* may be 0 */);
/* there is no need to free *list_r; lifetime is that of the XLU_Config */
const char *xlu_cfg_get_listitem(const XLU_ConfigList*, int entry);
/* xlu_cfg_get_listitem cannot fail, except that if entry is
* out of range it returns 0 (not setting errno) */
#endif /* LIBXLUTIL_H */
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