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#ifndef UDP_BROADCAST_COMMON
#define UDP_BROADCAST_COMMON
#include <arpa/inet.h>
#include <errno.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <net/if.h>
#include <unistd.h>
typedef unsigned char byte;
/* the port users will be connecting to */
#define SERVERPORT 4950
#define SERVERPORT_S "4950"
/* RFC 2460 requires IPv6 link MTU >= 1280, IPv6 UDP headers sum up to
48 byte, the rest is for us. One extra byte is for the final \0
(not transmitted) */
#define MAXBUFLEN 1233
#define ENP(Cmd, Msg) \
if ((Cmd) == -1) { \
perror(Msg); \
exit(1); \
}
#define E0P(Cmd, Msg) \
if ((Cmd) == NULL) { \
perror(Msg); \
exit(1); \
}
#define IGN(Cmd) \
if (Cmd) {}
#endif // UDP_BROADCAST_COMMON
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