arpa/inet.h - definitions for internet operations
#include <arpa/inet.h>
The <arpa/inet.h> header makes available the type in_port_t and the type in_addr_t as defined in the description of <netinet/in.h> .
The <arpa/inet.h> header makes available the in_addr structure, as defined in the description of <netinet/in.h> .The
<arpa/inet.h> header makes available the INET_ADDRSTRLEN and INET6_ADDRSTRLEN macros, as defined in the description for<netinet/in.h> .The following may be declared as functions, or defined as macros, or both:
uint32_t htonl(uint32_t hostlong); uint16_t htons(uint16_t hostshort); uint32_t ntohl(uint32_t netlong); uint16_t ntohs(uint16_t netshort);
The uint32_t and uint16_t types are made available by inclusion of
<inttypes.h> (see referenced document XSH).The following are declared as functions, and may also be defined as macros:
Inclusion of thein_addr_t inet_addr(const char *cp); in_addr_t inet_lnaof(struct in_addr in); struct in_addr inet_makeaddr(in_addr_t net, in_addr_t lna); in_addr_t inet_netof(struct in_addr in); in_addr_t inet_network(const char *cp); char *inet_ntoa(struct in_addr in); const char *inet_ntop(int af, const void *src, char *dst, socklen_t size); int inet_pton(int af, const char *src, void *dst);
<arpa/inet.h> header may also make visible all symbols from<netinet/in.h> and<inttypes.h> .
htonl() ,inet_addr() ,<netinet/in.h> ,<inttypes.h> .
First released in Issue 4. Prototypes ofinet_ntop() andinet_pton() added in Issue 5.2.
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