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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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arpa_inet.h(0P) POSIX Programmer's Manual arpa_inet.h(0P)
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.
arpa/inet.h — definitions for internet operations
#include <arpa/inet.h>
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.
None.
None.
None.
inttypes.h(0p), netinet_in.h(0p)
The System Interfaces volume of POSIX.1‐2017, htonl(3p),
inet_addr(3p), inet_ntop(3p)
Portions of this text are reprinted and reproduced in electronic
form from IEEE Std 1003.1-2017, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The
Open Group Base Specifications Issue 7, 2018 Edition, Copyright
(C) 2018 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. 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. The original Standard can be
obtained online at http://www.opengroup.org/unix/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 2017 arpa_inet.h(0P)
Pages that refer to this page: netinet_in.h(0p), htonl(3p), inet_addr(3p), inet_ntop(3p)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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