/*************************************************************************** * nbase_ipv6.h -- IPv6 portability classes and structures These were * * written by fyodor@nmap.org . * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2022 Nmap Software LLC ("The Nmap * * Project"). Nmap is also a registered trademark of the Nmap Project. * * * * This program is distributed under the terms of the Nmap Public Source * * License (NPSL). The exact license text applying to a particular Nmap * * release or source code control revision is contained in the LICENSE * * file distributed with that version of Nmap or source code control * * revision. More Nmap copyright/legal information is available from * * https://nmap.org/book/man-legal.html, and further information on the * * NPSL license itself can be found at https://nmap.org/npsl/ . This * * header summarizes some key points from the Nmap license, but is no * * substitute for the actual license text. * * * * Nmap is generally free for end users to download and use themselves, * * including commercial use. It is available from https://nmap.org. * * * * The Nmap license generally prohibits companies from using and * * redistributing Nmap in commercial products, but we sell a special Nmap * * OEM Edition with a more permissive license and special features for * * this purpose. See https://nmap.org/oem/ * * * * If you have received a written Nmap license agreement or contract * * stating terms other than these (such as an Nmap OEM license), you may * * choose to use and redistribute Nmap under those terms instead. * * * * The official Nmap Windows builds include the Npcap software * * (https://npcap.com) for packet capture and transmission. It is under * * separate license terms which forbid redistribution without special * * permission. So the official Nmap Windows builds may not be * * redistributed without special permission (such as an Nmap OEM * * license). * * * * Source is provided to this software because we believe users have a * * right to know exactly what a program is going to do before they run it. * * This also allows you to audit the software for security holes. * * * * Source code also allows you to port Nmap to new platforms, fix bugs, * * and add new features. You are highly encouraged to submit your * * changes as a Github PR or by email to the dev@nmap.org mailing list * * for possible incorporation into the main distribution. Unless you * * specify otherwise, it is understood that you are offering us very * * broad rights to use your submissions as described in the Nmap Public * * Source License Contributor Agreement. This is important because we * * fund the project by selling licenses with various terms, and also * * because the inability to relicense code has caused devastating * * problems for other Free Software projects (such as KDE and NASM). * * * * The free version of Nmap is distributed in the hope that it will be * * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties, * * indemnification and commercial support are all available through the * * Npcap OEM program--see https://nmap.org/oem/ * * * ***************************************************************************/ /* $Id$ */ #ifndef NBASE_IPV6_H #define NBASE_IPV6_H #ifdef __amigaos__ #ifndef _NMAP_AMIGAOS_H_ #include "../nmap_amigaos.h" #endif #endif #if HAVE_SYS_TYPES_H #include #endif #if HAVE_SYS_SOCKET_H #include #endif #if HAVE_NETINET_IN_H #include #endif #if HAVE_ARPA_INET_H #include #endif #ifndef HAVE_AF_INET6 #define AF_INET6 10 #define PF_INET6 10 #endif /* HAVE_AF_INET6 */ #ifndef HAVE_INET_PTON /* int * inet_pton(af, src, dst) * convert from presentation format (which usually means ASCII printable) * to network format (which is usually some kind of binary format). * return: * 1 if the address was valid for the specified address family * 0 if the address wasn't valid (`dst' is untouched in this case) * -1 if some other error occurred (`dst' is untouched in this case, too) * author: * Paul Vixie, 1996. */ int inet_pton(int af, const char *src, void *dst); #endif /* HAVE_INET_PTON */ #ifndef HAVE_INET_NTOP /* char * * inet_ntop(af, src, dst, size) * convert a network format address to presentation format. * return: * pointer to presentation format address (`dst'), or NULL (see errno). * author: * Paul Vixie, 1996. */ const char *inet_ntop(int af, const void *src, char *dst, size_t size); #endif /* HAVE_INET_NTOP */ #ifndef HAVE_SOCKADDR_STORAGE struct sockaddr_storage { u16 ss_family; u16 __align_to_64[3]; u64 __padding[16]; }; #endif /* SOCKADDR_STORAGE */ /* Compares two sockaddr_storage structures with a return value like strcmp. First the address families are compared, then the addresses if the families are equal. The structures must be real full-length sockaddr_storage structures, not something shorter like sockaddr_in. */ int sockaddr_storage_cmp(const struct sockaddr_storage *a, const struct sockaddr_storage *b); /* Does sockaddr_storage_cmp(a, b) == 0 for you. */ int sockaddr_storage_equal(const struct sockaddr_storage *a, const struct sockaddr_storage *b); /* This function is an easier version of inet_ntop because you don't need to pass a dest buffer. Instead, it returns a static buffer that you can use until the function is called again (by the same or another thread in the process). If there is a weird error (like sslen being too short) then NULL will be returned. */ const char *inet_ntop_ez(const struct sockaddr_storage *ss, size_t sslen); #if !HAVE_GETNAMEINFO || !HAVE_GETADDRINFO #if !defined(EAI_MEMORY) #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ #define EAI_AGAIN 2 /* temporary failure in name resolution */ #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ #define EAI_FAMILY 5 /* ai_family not supported */ #define EAI_MEMORY 6 /* memory allocation failure */ #define EAI_NODATA 7 /* no address associated with hostname */ #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ #define EAI_SYSTEM 11 /* system error returned in errno */ #define EAI_BADHINTS 12 #define EAI_PROTOCOL 13 #define EAI_MAX 14 #endif /* EAI_MEMORY */ #endif /* !HAVE_GETNAMEINFO || !HAVE_GETADDRINFO */ #if !HAVE_GETNAMEINFO /* This replacement version is *NOT* a full implementation by any stretch of the imagination */ /* getnameinfo flags */ #if !defined(NI_NAMEREQD) #define NI_NOFQDN 8 #define NI_NUMERICHOST 16 #define NI_NAMEREQD 32 #define NI_NUMERICSERV 64 #define NI_DGRAM 128 #endif struct sockaddr; int getnameinfo(const struct sockaddr *sa, size_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags); #endif /* !HAVE_GETNAMEINFO */ #if !HAVE_GETADDRINFO /* This replacement version is *NOT* a full implementation by any stretch of the imagination */ struct addrinfo { int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ int ai_family; /* PF_xxx */ int ai_socktype; /* SOCK_xxx */ int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ size_t ai_addrlen; /* length of ai_addr */ char *ai_canonname; /* canonical name for nodename */ struct sockaddr *ai_addr; /* binary address */ struct addrinfo *ai_next; /* next structure in linked list */ }; /* getaddrinfo Flags */ #if !defined(AI_PASSIVE) || !defined(AI_CANONNAME) || !defined(AI_NUMERICHOST) #define AI_PASSIVE 1 #define AI_CANONNAME 2 #define AI_NUMERICHOST 4 #endif void freeaddrinfo(struct addrinfo *res); int getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res); #endif /* !HAVE_GETADDRINFO */ #ifndef HAVE_GAI_STRERROR const char *gai_strerror(int errcode); #endif int sockaddr_storage_inet_pton(const char * ip_str, struct sockaddr_storage * addr); const char *sockaddr_storage_iptop(const struct sockaddr_storage * addr, char * dst); #endif /* NBASE_IPV6_H */