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217 lines
9.6 KiB
C
217 lines
9.6 KiB
C
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/***************************************************************************
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* nbase_ipv6.h -- IPv6 portability classes and structures These were *
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* written by fyodor@nmap.org . *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2021 Nmap Software LLC ("The Nmap *
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* Project"). Nmap is also a registered trademark of the Nmap Project. *
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* *
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* This program is distributed under the terms of the Nmap Public Source *
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* License (NPSL). The exact license text applying to a particular Nmap *
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* release or source code control revision is contained in the LICENSE *
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* file distributed with that version of Nmap or source code control *
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* revision. More Nmap copyright/legal information is available from *
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* https://nmap.org/book/man-legal.html, and further information on the *
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* NPSL license itself can be found at https://nmap.org/npsl. This header *
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* summarizes some key points from the Nmap license, but is no substitute *
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* for the actual license text. *
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* *
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* Nmap is generally free for end users to download and use themselves, *
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* including commercial use. It is available from https://nmap.org. *
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* *
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* The Nmap license generally prohibits companies from using and *
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* redistributing Nmap in commercial products, but we sell a special Nmap *
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* OEM Edition with a more permissive license and special features for *
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* this purpose. See https://nmap.org/oem *
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* *
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* If you have received a written Nmap license agreement or contract *
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* stating terms other than these (such as an Nmap OEM license), you may *
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* choose to use and redistribute Nmap under those terms instead. *
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* *
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* The official Nmap Windows builds include the Npcap software *
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* (https://npcap.org) for packet capture and transmission. It is under *
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* separate license terms which forbid redistribution without special *
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* permission. So the official Nmap Windows builds may not be *
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* redistributed without special permission (such as an Nmap OEM *
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* license). *
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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. *
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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 submit your *
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* changes as a Github PR or by email to the dev@nmap.org mailing list *
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* for possible incorporation into the main distribution. Unless you *
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* specify otherwise, it is understood that you are offering us very *
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* broad rights to use your submissions as described in the Nmap Public *
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* Source License Contributor Agreement. This is important because we *
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* fund the project by selling licenses with various terms, and also *
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* because the inability to relicense code has caused devastating *
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* problems for other Free Software projects (such as KDE and NASM). *
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* *
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* The free version of Nmap is distributed in the hope that it will be *
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties, *
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* indemnification and commercial support are all available through the *
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* Npcap OEM program--see https://nmap.org/oem. *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef NBASE_IPV6_H
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#define NBASE_IPV6_H
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#ifdef __amigaos__
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#ifndef _NMAP_AMIGAOS_H_
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#include "../nmap_amigaos.h"
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#endif
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#endif
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_SYS_SOCKET_H
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#include <sys/socket.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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#if HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifndef HAVE_AF_INET6
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#define AF_INET6 10
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#define PF_INET6 10
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#endif /* HAVE_AF_INET6 */
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#ifndef HAVE_INET_PTON
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/* int
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* inet_pton(af, src, dst)
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* convert from presentation format (which usually means ASCII printable)
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* to network format (which is usually some kind of binary format).
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* return:
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* 1 if the address was valid for the specified address family
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* 0 if the address wasn't valid (`dst' is untouched in this case)
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* -1 if some other error occurred (`dst' is untouched in this case, too)
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* author:
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* Paul Vixie, 1996.
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*/
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int inet_pton(int af, const char *src, void *dst);
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#endif /* HAVE_INET_PTON */
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#ifndef HAVE_INET_NTOP
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/* char *
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* inet_ntop(af, src, dst, size)
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* convert a network format address to presentation format.
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* return:
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* pointer to presentation format address (`dst'), or NULL (see errno).
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* author:
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* Paul Vixie, 1996.
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*/
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const char *inet_ntop(int af, const void *src, char *dst, size_t size);
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#endif /* HAVE_INET_NTOP */
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#ifndef HAVE_SOCKADDR_STORAGE
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struct sockaddr_storage {
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u16 ss_family;
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u16 __align_to_64[3];
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u64 __padding[16];
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};
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#endif /* SOCKADDR_STORAGE */
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/* Compares two sockaddr_storage structures with a return value like strcmp.
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First the address families are compared, then the addresses if the families
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are equal. The structures must be real full-length sockaddr_storage
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structures, not something shorter like sockaddr_in. */
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int sockaddr_storage_cmp(const struct sockaddr_storage *a,
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const struct sockaddr_storage *b);
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/* Does sockaddr_storage_cmp(a, b) == 0 for you. */
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int sockaddr_storage_equal(const struct sockaddr_storage *a,
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const struct sockaddr_storage *b);
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/* This function is an easier version of inet_ntop because you don't
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need to pass a dest buffer. Instead, it returns a static buffer that
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you can use until the function is called again (by the same or another
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thread in the process). If there is a weird error (like sslen being
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too short) then NULL will be returned. */
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const char *inet_ntop_ez(const struct sockaddr_storage *ss, size_t sslen);
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#if !HAVE_GETNAMEINFO || !HAVE_GETADDRINFO
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#if !defined(EAI_MEMORY)
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#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
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#define EAI_AGAIN 2 /* temporary failure in name resolution */
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#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
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#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
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#define EAI_FAMILY 5 /* ai_family not supported */
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#define EAI_MEMORY 6 /* memory allocation failure */
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#define EAI_NODATA 7 /* no address associated with hostname */
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#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
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#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
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#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
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#define EAI_SYSTEM 11 /* system error returned in errno */
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#define EAI_BADHINTS 12
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#define EAI_PROTOCOL 13
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#define EAI_MAX 14
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#endif /* EAI_MEMORY */
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#endif /* !HAVE_GETNAMEINFO || !HAVE_GETADDRINFO */
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#if !HAVE_GETNAMEINFO
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/* This replacement version is *NOT* a full implementation by any
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stretch of the imagination */
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/* getnameinfo flags */
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#if !defined(NI_NAMEREQD)
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#define NI_NOFQDN 8
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#define NI_NUMERICHOST 16
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#define NI_NAMEREQD 32
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#define NI_NUMERICSERV 64
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#define NI_DGRAM 128
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#endif
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struct sockaddr;
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int getnameinfo(const struct sockaddr *sa, size_t salen,
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char *host, size_t hostlen,
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char *serv, size_t servlen, int flags);
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#endif /* !HAVE_GETNAMEINFO */
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#if !HAVE_GETADDRINFO
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/* This replacement version is *NOT* a full implementation by any
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stretch of the imagination */
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struct addrinfo {
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int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
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int ai_family; /* PF_xxx */
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int ai_socktype; /* SOCK_xxx */
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int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
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size_t ai_addrlen; /* length of ai_addr */
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char *ai_canonname; /* canonical name for nodename */
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struct sockaddr *ai_addr; /* binary address */
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struct addrinfo *ai_next; /* next structure in linked list */
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};
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/* getaddrinfo Flags */
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#if !defined(AI_PASSIVE) || !defined(AI_CANONNAME) || !defined(AI_NUMERICHOST)
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#define AI_PASSIVE 1
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#define AI_CANONNAME 2
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#define AI_NUMERICHOST 4
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#endif
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void freeaddrinfo(struct addrinfo *res);
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int getaddrinfo(const char *node, const char *service,
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const struct addrinfo *hints, struct addrinfo **res);
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#endif /* !HAVE_GETADDRINFO */
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#ifndef HAVE_GAI_STRERROR
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const char *gai_strerror(int errcode);
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#endif
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int sockaddr_storage_inet_pton(const char * ip_str, struct sockaddr_storage * addr);
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const char *sockaddr_storage_iptop(const struct sockaddr_storage * addr, char * dst);
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#endif /* NBASE_IPV6_H */
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