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Initial revision

/*
 * Copyright (C) 2017 Aaron M. D. Jones <aaronmdjones@gmail.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following
 * conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.
 *
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef INC_LIBACOPM_COMMON_H
#define INC_LIBACOPM_COMMON_H

#include <stdarg.h> /* va_list, va_*(), vfprintf(), vsprintf(), vsnprintf() */
#include <stdbool.h> /* true, false */
#include <stddef.h> /* NULL, size_t */
#include <stdio.h> /* snprintf() */
#include <stdint.h> /* uint8_t, uint16_t, uint32_t, uint64_t */
#include <stdlib.h> /* abort(), getenv(), calloc(), malloc(), realloc(), free(), strtoul(), EXIT_* */

#ifdef HAVE_CONFIG_H
#  include "acopm-config.h"
#endif

#ifndef PACKAGE_NAME
#  define PACKAGE_NAME              "ACOPM"
#endif

#ifndef PACKAGE_TARNAME
#  define PACKAGE_TARNAME           "acopm"
#endif

#ifndef SYSCONFDIR
#  define SYSCONFDIR                "/etc"
#endif

#define ACOPM_CONFIG_FILE_DEFAULT   SYSCONFDIR "/" PACKAGE_TARNAME ".conf"

#ifndef BUILD_WITH_DEBUG
#  define NDEBUG 1 /* remove acopm_log_debug() calls, make assert(3) a no-op, etc */
#else
#  ifdef NDEBUG
#    undef NDEBUG  /* NDEBUG was defined but not by our build system -- remove it */
#  endif
#endif

#define INET_ADDRLEN    4U  /* # octets in raw IPv4 address */
#define INET6_ADDRLEN   16U /* # octets in raw IPv6 address */

#define acopm_attr_inline           __attribute__((always_inline))
#define acopm_attr_malloc           __attribute__((malloc))
#define acopm_attr_noreturn         __attribute__((noreturn))
#define acopm_attr_packed           __attribute__((packed))
#define acopm_attr_printf(f, s)     __attribute__((format(printf, (f), (s))))
#define acopm_attr_pure             __attribute__((pure))
#define acopm_attr_unused           __attribute__((unused))
#define acopm_attr_warn_unused      __attribute__((warn_unused_result))

#define acopm_strset_len(b, s, v)   ((snprintf((b), (s), "%s", (v)) >= (int) (s)) ? false : true)
#define acopm_strset_buf(b, v)      acopm_strset_len((b), sizeof (b), (v))

#endif /* !INC_LIBACOPM_COMMON_H */