arpa/inet.h

inet.hの情報は、manマニュアルから取得しました。Linuxでのネットワークプログラミングでよく使われるヘッダーファイルで、主にメッセージ変換、クライアント情報を文字列情報に変換するために使用される。

<arpa/inet.h>(0P) POSIX Programmer's Manual <arpa/inet.h>(0P)

NAME
       arpa/inet.h - definitions for internet operations

SYNOPSIS
       #include <arpa/inet.h>

DESCRIPTION
       The in_port_t and in_addr_t types shall be defined as described in
       <netinet/in.h> .

       The in_addr structure shall be defined as described in <netinet/in.h>
       .

       The INET_ADDRSTRLEN and INET6_ADDRSTRLEN macros shall be defined as described in <netinet/in.h> .
       described in <netinet/in.h> .

       The following shall either be declared as functions, defined as
       If functions are declared, function prototypes shall be provided.
       If functions are declared, function prototypes shall be provided.

              uint32_t htonl(uint32_t);
              uint32_t htonl(uint32_t); uint16_t htons(uint16_t);
              uint32_t ntohl(uint32_t);
              uint16_t ntohs(uint16_t);

       The uint32_t and uint16_t types shall be defined as described in
       <inttypes.h> .

       The following shall be declared as functions and may also be defined
       Function prototypes shall be provided.

              in_addr_t inet_addr(const char *);
              char *inet_ntoa(struct in_addr);
              const char *inet_ntop(int, const void *restrict, char *restrict,
                               socklen_t);
              int inet_pton(int, const char *restrict, void *restrict
);

       Inclusion of the <arpa/inet.h> header may also make visible all sym-
       bols from <netinet/in.h> and <inttypes.h>.

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       <netinet/in.h>, <inttypes.h>, the System Interfaces volume of
       IEEE Std 1003.1-2001, htonl(), inet_addr()

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface
       ogy -- Portable Operating System Interface (POSIX), The Open Group
       Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc.
       In the event of any discrepancy between
       the event of any discrepancy between this version and the original
       IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document.
       In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document.
       obtained online at http://www.opengroup.org/unix/online.html .