projects / apt.git / blame
| Commit | Line | Data |
|---|---|---|
| 934b6582 AL |
1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ | |
| 533151d3 | 3 | // $Id: rfc2553emu.h,v 1.2 1999/05/26 04:08:39 jgg Exp $ |
| 934b6582 AL |
4 | /* ###################################################################### |
| 5 | ||
| 6 | RFC 2553 Emulation - Provides emulation for RFC 2553 getaddrinfo, | |
| 7 | freeaddrinfo and getnameinfo | |
| 8 | ||
| 9 | These functions are necessary to write portable protocol independent | |
| 10 | networking. They transparently support IPv4, IPv6 and probably many | |
| 11 | other protocols too. This implementation is needed when the host does | |
| 12 | not support these standards. It implements a simple wrapper that | |
| 13 | basically supports only IPv4. | |
| 14 | ||
| 15 | Perfect emulation is not provided, but it is passable.. | |
| 16 | ||
| 17 | Originally written by Jason Gunthorpe <jgg@debian.org> and placed into | |
| 18 | the Public Domain, do with it what you will. | |
| 19 | ||
| 20 | ##################################################################### */ | |
| 21 | /*}}}*/ | |
| 22 | #ifndef RFC2553EMU_H | |
| 23 | #define RFC2553EMU_H | |
| 24 | ||
| 25 | #include <netdb.h> | |
| 26 | #include <sys/types.h> | |
| 27 | #include <sys/socket.h> | |
| 28 | ||
| 29 | // Autosense getaddrinfo | |
| 30 | #if defined(AI_PASSIVE) && defined(EAI_NONAME) | |
| 31 | #define HAVE_GETADDRINFO | |
| 32 | #endif | |
| 33 | ||
| 533151d3 AL |
34 | // Autosense getnameinfo |
| 35 | #if defined(NI_NUMERICHOST) | |
| 36 | #define HAVE_GETNAMEINFO | |
| 37 | #endif | |
| 38 | ||
| 934b6582 AL |
39 | // getaddrinfo support? |
| 40 | #ifndef HAVE_GETADDRINFO | |
| 41 | #error Boink | |
| 42 | ||
| 43 | // Renamed to advoid type clashing.. (for debugging) | |
| 44 | struct addrinfo_emu | |
| 45 | { | |
| 46 | int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ | |
| 47 | int ai_family; /* PF_xxx */ | |
| 48 | int ai_socktype; /* SOCK_xxx */ | |
| 49 | int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ | |
| 50 | size_t ai_addrlen; /* length of ai_addr */ | |
| 51 | char *ai_canonname; /* canonical name for nodename */ | |
| 52 | struct sockaddr *ai_addr; /* binary address */ | |
| 53 | struct addrinfo *ai_next; /* next structure in linked list */ | |
| 54 | }; | |
| 55 | #define addinfo addrinfo_emu | |
| 56 | ||
| 57 | int getaddrinfo(const char *nodename, const char *servname, | |
| 58 | const struct addrinfo *hints, | |
| 59 | struct addrinfo **res); | |
| 60 | void freeaddrinfo(struct addrinfo *ai); | |
| 61 | ||
| 62 | #ifndef AI_PASSIVE | |
| 63 | #define AI_PASSIVE (1<<1) | |
| 64 | #endif | |
| 65 | ||
| 66 | #ifndef EAI_NONAME | |
| 67 | #define EAI_NONAME -1 | |
| 68 | #define EAI_AGAIN -2 | |
| 69 | #define EAI_FAIL -3 | |
| 70 | #define EAI_NODATA -4 | |
| 71 | #define EAI_FAMILY -5 | |
| 72 | #define EAI_SOCKTYPE -6 | |
| 73 | #define EAI_SERVICE -7 | |
| 74 | #define EAI_ADDRFAMILY -8 | |
| 934b6582 AL |
75 | #define EAI_SYSTEM -10 |
| 76 | #endif | |
| 77 | ||
| 78 | #endif | |
| 79 | ||
| 80 | // getnameinfo support (glibc2.0 has getaddrinfo only) | |
| 81 | #ifndef HAVE_GETNAMEINFO | |
| 82 | ||
| 83 | int getnameinfo(const struct sockaddr *sa, socklen_t salen, | |
| 84 | char *host, size_t hostlen, | |
| 85 | char *serv, size_t servlen, | |
| 86 | int flags); | |
| 533151d3 AL |
87 | |
| 88 | #ifndef NI_MAXHOST | |
| 89 | #define NI_MAXHOST 1025 | |
| 90 | #define NI_MAXSERV 32 | |
| 91 | #endif | |
| 92 | ||
| 93 | #ifndef NI_NUMERICHOST | |
| 94 | #define NI_NUMERICHOST (1<<0) | |
| 95 | #define NI_NUMERICSERV (1<<1) | |
| 96 | // #define NI_NOFQDN (1<<2) | |
| 97 | #define NI_NAMEREQD (1<<3) | |
| 98 | #define NI_DATAGRAM (1<<4) | |
| 99 | #endif | |
| 100 | ||
| 934b6582 AL |
101 | #endif |
| 102 | ||
| 103 | #endif |