/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#ifndef LWRES_PRINT_P_H
#define LWRES_PRINT_P_H 1

/***
 *** Imports
 ***/

#include <lwres/lang.h>
#include <lwres/platform.h>

/*
 * This block allows lib/lwres/print.c to be cleanly compiled even if
 * the platform does not need it.  The standard Makefile will still
 * not compile print.c or archive print.o, so this is just to make test
 * compilation ("make print.o") easier.
 */
#if !defined(LWRES_PLATFORM_NEEDVSNPRINTF) && defined(LWRES__PRINT_SOURCE)
#define LWRES_PLATFORM_NEEDVSNPRINTF
#endif

#if !defined(LWRES_PLATFORM_NEEDSPRINTF) && defined(LWRES__PRINT_SOURCE)
#define LWRES_PLATFORM_NEEDSPRINTF
#endif

/***
 *** Macros.
 ***/

#ifdef __GNUC__
#define LWRES_FORMAT_PRINTF(fmt, args) \
	__attribute__((__format__(__printf__, fmt, args)))
#else
#define LWRES_FORMAT_PRINTF(fmt, args)
#endif

/***
 *** Functions
 ***/

#ifdef LWRES_PLATFORM_NEEDVSNPRINTF
#include <stdarg.h>
#include <stddef.h>
#endif

LWRES_LANG_BEGINDECLS

#ifdef LWRES_PLATFORM_NEEDVSNPRINTF
int
lwres__print_vsnprintf(char *str, size_t size, const char *format, va_list ap)
     LWRES_FORMAT_PRINTF(3, 0);
#ifdef vsnprintf
#undef vsnprintf
#endif
#define vsnprintf lwres__print_vsnprintf

int
lwres__print_snprintf(char *str, size_t size, const char *format, ...)
     LWRES_FORMAT_PRINTF(3, 4);
#ifdef snprintf
#undef snprintf
#endif
#define snprintf lwres__print_snprintf
#endif /* LWRES_PLATFORM_NEEDVSNPRINTF */

#ifdef LWRES_PLATFORM_NEEDSPRINTF
int
lwres__print_sprintf(char *str, const char *format, ...) LWRES_FORMAT_PRINTF(2, 3);
#ifdef sprintf
#undef sprintf
#endif
#define sprintf lwres__print_sprintf
#endif

LWRES_LANG_ENDDECLS

#endif /* LWRES_PRINT_P_H */