ARPA_INET.H(7POSIX) - man page online | overview, conventions, and miscellany

arpa_inet.h(7POSIX)                 POSIX Programmer's Manual                 arpa_inet.h(7POSIX)

PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (consult the corresponding Linux manual page for details of
       Linux behavior), or the interface may not be implemented on Linux.

NAME
       arpa/inet.h — definitions for internet operations

SYNOPSIS
       #include <arpa/inet.h>

DESCRIPTION
       The <arpa/inet.h> header shall define the in_port_t and in_addr_t types as described in
       <netinet/in.h>.

       The <arpa/inet.h> header shall define the in_addr structure as described in
       <netinet/in.h>.

       The <arpa/inet.h> header shall define the INET_ADDRSTRLEN and INET6_ADDRSTRLEN macros as
       described in <netinet/in.h>.

       The following shall be declared as functions, or defined as macros, or both. If functions
       are declared, function prototypes shall be provided.

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

       The <arpa/inet.h> header shall define the uint32_t and uint16_t types as described in
       <inttypes.h>.

       The following shall be declared as functions and may also be defined as macros. 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 symbols from
       <netinet/in.h> and <inttypes.h>.

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       <inttypes.h>, <netinet_in.h>

       The System Interfaces volume of POSIX.1‐2008, htonl(), inet_addr(), inet_ntop()

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std
       1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrep‐
       ancy between this version and the original IEEE and The Open Group Standard, the original
       IEEE and The Open Group Standard is the referee document. The original Standard can be
       obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have
       been introduced during the conversion of the source files to man page format. To report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                            2013                           arpa_inet.h(7POSIX)