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105 lines
5.4 KiB
C
105 lines
5.4 KiB
C
/***************************************************************************
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* netutils.h -- This contains some useful little network/socket related *
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* utility functions. *
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* *
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***********************IMPORTANT NSOCK LICENSE TERMS***********************
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* *
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* The nsock parallel socket event library is (C) 1999-2012 Insecure.Com *
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* LLC This library is free software; you may redistribute and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; Version 2. This guarantees *
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* your right to use, modify, and redistribute this software under certain *
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* conditions. If this license is unacceptable to you, Insecure.Com LLC *
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* may be willing to sell alternative licenses (contact *
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* sales@insecure.com ). *
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* *
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* As a special exception to the GPL terms, Insecure.Com LLC grants *
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* permission to link the code of this program with any version of the *
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* OpenSSL library which is distributed under a license identical to that *
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* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
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* linked combinations including the two. You must obey the GNU GPL in all *
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* respects for all of the code used other than OpenSSL. If you modify *
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* this file, you may extend this exception to your version of the file, *
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* but you are not obligated to do so. *
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* *
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* If you received these files with a written license agreement stating *
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* terms other than the (GPL) terms above, then that alternative license *
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* agreement takes precedence over this comment. *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes (none *
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* have been found so far). *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to send your changes *
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* to nmap-dev@insecure.org for possible incorporation into the main *
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* distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, it is assumed that you are *
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* offering the Nmap Project (Insecure.Com LLC) the unlimited, *
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* non-exclusive right to reuse, modify, and relicense the code. Nmap *
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* will always be available Open Source, but this is important because the *
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* inability to relicense code has caused devastating problems for other *
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* Free Software projects (such as KDE and NASM). We also occasionally *
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* relicense the code to third parties as discussed above. If you wish to *
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* specify special license conditions of your contributions, just say so *
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* when you send them. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License v2.0 for more details *
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* (http://www.gnu.org/licenses/gpl-2.0.html). *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef NETUTILS_H
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#define NETUTILS_H
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#ifdef HAVE_CONFIG_H
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#include "nsock_config.h"
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#include "nbase_config.h"
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#endif
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#if HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef WIN32
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#include "nbase_winconfig.h"
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/* nbase_winunix.h somehow reason.h to get included */
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#include "nbase_winunix.h"
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#endif
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#if HAVE_SYS_UN_H
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#include <sys/un.h>
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#endif
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#if HAVE_SYS_UN_H
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#define PEER_STR_LEN sizeof(((struct sockaddr_un *) 0)->sun_path)
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#else
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#define PEER_STR_LEN sizeof("[ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255]:xxxxx")
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#endif
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/* Maximize the number of file descriptors (including sockets) allowed for this
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* process and return that maximum value (note -- you better not actually open
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* this many -- stdin, stdout, other files opened by libraries you use, etc. all
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* count toward this limit. Leave a little slack */
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int maximize_fdlimit(void);
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#if HAVE_SYS_UN_H
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/* Get the UNIX domain socket path or NULL if the socket family != AF_UNIX. */
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const char *get_unixsock_path(struct sockaddr_storage *addr);
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#endif
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/* Get the peer/host address string.
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* In case we have support for UNIX domain sockets, function returns
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* string containing path to UNIX socket if the address family is AF_UNIX,
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* otherwise it returns string containing "<address>:<port>". */
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char *get_hostaddr_string(struct sockaddr_storage *addr, size_t len, unsigned short port);
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#endif /* NETUTILS_H */
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