in.h

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#ifndef _NETINET_IN_H
#define _NETINET_IN_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>

struct in_addr
{
 unsigned int s_addr;
};

#define IPPROTO_IP 0
#define IPPROTO_TCP 6
#define IPPROTO_UDP 17

struct sockaddr_in
{
 short sin_family;
 unsigned short sin_port;
 struct in_addr sin_addr;
 char sin_zero[8];
};

uint32_t ntohl (uint32_t netlong);
uint16_t ntohs (uint16_t netshort);
uint32_t htonl (uint32_t hostlong);
uint16_t htons (uint16_t hostshort);

#ifdef __cplusplus
}
#endif

#endif /* _NETINET_IN_H */