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   inet_ntop    ( 3 )

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Имя (Name)

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

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Синопсис (Synopsis)

#include <arpa/inet.h>

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

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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.

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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.

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Ошибки (Error)

EAFNOSUPPORT
              af was not a valid address family.

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

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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 │
       └───────────────────────────────┴───────────────┴────────────────┘

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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.

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Ошибки (баги) (Bugs)

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

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Примеры (Examples)

See inet_pton(3).

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Смотри также (See also)

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

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