#ifndef fooutilshfoo
#define fooutilshfoo

#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <linux/if_packet.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>

extern unsigned debug_mask;

#include "list.h"
#include "debug.h"

/* These functions need to be defined in the linking binary */
#define zmalloc(s) __zmalloc(__func__, __LINE__, s)
void *__zmalloc(const char *fn, int line, size_t s);

#define xstrdup(s) __xstrdup(__func__, __LINE__, s)
char *__xstrdup(const char *fn, int line, const char *s);

#define xstrndup(s, n) __xstrndup(__func__, __LINE__, s, n)
char *__xstrndup(const char *fn, int line, const char *s, size_t n);

#define xfree(s) __xfree(__func__, __LINE__, s)
void __xfree(const char *fn, int line, void *ptr);

/* Length of longest DNS name = 253 + trailing dot */
#define FQDN_STR_LEN 254

/* Length of longest port string = strlen("65535") */
#define PORT_STR_LEN 5

/* Length of longest address family string = strlen("AF_INETX") */
#define AF_STR_LEN 8

/* Length of longest addrstr, format = "AF_INETX <IPADDR> <PORT> */
#define ADDRSTRLEN (AF_STR_LEN + 1 + INET6_ADDRSTRLEN + 1 + PORT_STR_LEN + 1)

struct saddr {
	union {
		struct sockaddr_storage storage;
		struct sockaddr_in in4;
		struct sockaddr_in6 in6;
		struct sockaddr_ll ll;
	};
	socklen_t addrlen;
	char addrstr[ADDRSTRLEN];
	struct list_head list;
};

void socket_set_low_latency(int sfd, bool keepalive, bool iptos, bool nodelay);

char *saddr_addr(struct saddr *saddr, char *buf, size_t len);

uint16_t saddr_port(struct saddr *saddr);

void saddr_set_ipv4(struct saddr *saddr, in_addr_t ip, in_port_t port);

void saddr_set_ipv6(struct saddr *saddr, const struct in6_addr *ip, in_port_t port);

void saddr_set_addrstr(struct saddr *saddr);

int strtou16_strict(const char *str, uint16_t *result);

static inline bool empty_str(const char *str)
{
	if (!str || str[0] == '\0')
		return true;
	else
		return false;
}

static inline bool streq(const char *a, const char *b)
{
	return strcmp(a, b) == 0;
}

static inline bool strcaseeq(const char *a, const char *b)
{
	return strcasecmp(a, b) == 0;
}

#if __BYTE_ORDER == __LITTLE_ENDIAN
#define chtobe32(x) __bswap_constant_32(x)
#else
#define chtobe32(x) (x)
#endif

#if __BYTE_ORDER == __LITTLE_ENDIAN
#define cinet_addr(a,b,c,d) ((uint32_t)((a)<<0|(b)<<8|(c)<<16|(d)<<24))
#else
#define cinet_addr(a,b,c,d) ((uint32_t)((a)<<24|(b)<<16|(c)<<8|(d)<<0))
#endif

#define PIPE_RD 0
#define PIPE_WR 1

#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

#define MAX(a, b) ((a) > (b) ? (a) : (b))

#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))

#endif