/*
 * Copyright (c) 2025 Omar Polo <op@omarpolo.com>
 *
 * Permission to use, copy, modify, and 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
 */

#include "config.h"
#include <stdio.h>

#ifndef timespecsub
#define timespecsub(a, b, result)				\
   do {								\
      (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;		\
      (result)->tv_nsec = (a)->tv_nsec - (b)->tv_nsec;		\
      if ((result)->tv_nsec < 0) {				\
	 --(result)->tv_sec;					\
	 (result)->tv_nsec += 1000000000L;			\
      }								\
   } while (0)
#endif

#if !defined(SA_LEN)
# if defined(HAVE_STRUCT_SOCKADDR_SA_LEN)
#  define SA_LEN(x)	((x)->sa_len)
# else
#  define SA_LEN(x)     ((x)->sa_family == AF_INET6 ? \
			sizeof(struct sockaddr_in6) : \
			sizeof(struct sockaddr_in))
# endif
#endif

#ifndef __dead
#define __dead __attribute__((__noreturn__))
#endif

#ifndef HAVE_FGETLN
char *fgetln(FILE *, size_t *);
#endif

#ifndef HAVE_PLEDGE
#define pledge(a, b) (0)
#endif

#ifndef HAVE_REALLOCARRAY
void *reallocarray(void *, size_t, size_t);
#endif

#ifndef HAVE_RECALLOCARRAY
void *recallocarray(void *, size_t, size_t, size_t);
#endif

#ifndef HAVE_STRCASESTR
char *strcasestr(const char *, const char *);
#endif

#ifndef HAVE_STRTONUM
long long strtonum(const char *, long long, long long, const char **);
#endif