/usr/include/nspr/prinet.h is in libnspr4-dev 4.8.9-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
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* decision by deleting the provisions above and replace them with the notice
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* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* File: prinet.h
* Description:
* Header file used to find the system header files for socket support[1].
* This file serves the following purposes:
* - A cross-platform, "get-everything" socket header file. On
* Unix, socket support is scattered in several header files,
* while Windows has a "get-everything" socket header file[2].
* - NSPR needs the following macro definitions and function
* prototype declarations from these header files:
* AF_INET
* INADDR_ANY, INADDR_LOOPBACK, INADDR_BROADCAST
* ntohl(), ntohs(), htonl(), ntons().
* NSPR does not define its own versions of these macros and
* functions. It simply uses the native versions, which have
* the same names on all supported platforms.
* This file is intended to be included by NSPR public header
* files, such as prio.h. One should not include this file directly.
*
* Notes:
* 1. This file should have been an internal header. Please do not
* depend on it to pull in the system header files you need.
* 2. WARNING: This file is no longer cross-platform as it is a no-op
* for WIN32! See the comment in the WIN32 section for details.
*/
#ifndef prinet_h__
#define prinet_h__
#if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS)
#include <sys/types.h>
#include <sys/socket.h> /* AF_INET */
#include <netinet/in.h> /* INADDR_ANY, ..., ntohl(), ... */
#ifdef XP_OS2
#include <sys/ioctl.h>
#endif
#ifdef XP_UNIX
#ifdef AIX
/*
* On AIX 4.3, the header <arpa/inet.h> refers to struct
* ether_addr and struct sockaddr_dl that are not declared.
* The following struct declarations eliminate the compiler
* warnings.
*/
struct ether_addr;
struct sockaddr_dl;
#endif /* AIX */
#include <arpa/inet.h>
#endif /* XP_UNIX */
#include <netdb.h>
#if defined(FREEBSD) || defined(BSDI) || defined(QNX)
#include <rpc/types.h> /* the only place that defines INADDR_LOOPBACK */
#endif
/*
* OS/2 hack. For some reason INADDR_LOOPBACK is not defined in the
* socket headers.
*/
#if defined(OS2) && !defined(INADDR_LOOPBACK)
#define INADDR_LOOPBACK 0x7f000001
#endif
/*
* Prototypes of ntohl() etc. are declared in <machine/endian.h>
* on these platforms.
*/
#if defined(BSDI) || defined(OSF1)
#include <machine/endian.h>
#endif
#elif defined(WIN32)
/*
* Do not include any system header files.
*
* Originally we were including <windows.h>. It slowed down the
* compilation of files that included NSPR headers, so we removed
* the <windows.h> inclusion at customer's request, which created
* an unfortunate inconsistency with other platforms.
*/
#else
#error Unknown platform
#endif
#endif /* prinet_h__ */
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