| | 1 | // -*- mode: cpp; mode: fold -*- |
| | 2 | // Description /*{{{*/ |
| | 3 | // $Id: rfc2553emu.h,v 1.2 1999/05/26 04:08:39 jgg Exp $ |
| | 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 | |
| | 34 | // Autosense getnameinfo |
| | 35 | #if defined(NI_NUMERICHOST) |
| | 36 | #define HAVE_GETNAMEINFO |
| | 37 | #endif |
| | 38 | |
| | 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 |
| | 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); |
| | 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 | |
| | 101 | #endif |
| | 102 | |
| | 103 | #endif |
projects / apt.git / blame_incremental