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   inet_ntop    ( 3 )

конвертировать адреса IPv4 и IPv6 из двоичной в текстовую форму (convert IPv4 and IPv6 addresses from binary to text form)

Имя (Name)

inet_ntop - convert IPv4 and IPv6 addresses from binary to text
       form

Синопсис (Synopsis)

#include <arpa/inet.h>

const char *inet_ntop(int af, const void *restrict src, char *restrict dst, socklen_t size);


Описание (Description)

This function converts the network address structure src in the
       af address family into a character string.  The resulting string
       is copied to the buffer pointed to by dst, which must be a non-
       null pointer.  The caller specifies the number of bytes available
       in this buffer in the argument size.

inet_ntop() extends the inet_ntoa(3) function to support multiple address families, inet_ntoa(3) is now considered to be deprecated in favor of inet_ntop(). The following address families are currently supported:

AF_INET src points to a struct in_addr (in network byte order) which is converted to an IPv4 network address in the dotted-decimal format, "ddd.ddd.ddd.ddd". The buffer dst must be at least INET_ADDRSTRLEN bytes long.

AF_INET6 src points to a struct in6_addr (in network byte order) which is converted to a representation of this address in the most appropriate IPv6 network address format for this address. The buffer dst must be at least INET6_ADDRSTRLEN bytes long.


Возвращаемое значение (Return value)

On success, inet_ntop() returns a non-null pointer to dst.  NULL
       is returned if there was an error, with errno set to indicate the
       error.

Ошибки (Error)

EAFNOSUPPORT
              af was not a valid address family.

ENOSPC The converted address string would exceed the size given by size.


Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

┌───────────────────────────────┬───────────────┬────────────────┐ │Interface Attribute Value │ ├───────────────────────────────┼───────────────┼────────────────┤ │inet_ntop() │ Thread safety │ MT-Safe locale │ └───────────────────────────────┴───────────────┴────────────────┘


Стандарты (Conforming to)

POSIX.1-2001, POSIX.1-2008.  Note that RFC 2553 defines a
       prototype where the last argument size is of type size_t.  Many
       systems follow RFC 2553.  Glibc 2.0 and 2.1 have size_t, but 2.2
       and later have socklen_t.

Ошибки (баги) (Bugs)

AF_INET6 converts IPv4-mapped IPv6 addresses into an IPv6 format.

Примеры (Examples)

See inet_pton(3).

Смотри также (See also)

getnameinfo(3), inet(3), inet_pton(3)