diff options
Diffstat (limited to 'include/wolf/port/netdb.h')
| -rw-r--r-- | include/wolf/port/netdb.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/wolf/port/netdb.h b/include/wolf/port/netdb.h index 99abf73..28aa679 100644 --- a/include/wolf/port/netdb.h +++ b/include/wolf/port/netdb.h @@ -29,6 +29,14 @@ * @author Andreas Baumann <abaumann@yahoo.com> */ +/* + * Based on ideas found in: + * - Postgres src/port/getaddrinfo.c + * Copyright (c) 2003-2008, PostgreSQL Global Development Group + * - Unix Stevens Network Programming + * libgai implementation in unpv12e + */ + #include "port/sys.h" #ifdef FREEBSD @@ -84,6 +92,80 @@ #define NI_MAXSERV 32 #endif +#if !defined HAVE_GETADDRINFO || defined TEST_GETADDRINFO + +#include <sys/types.h> /* for size_t */ +#include <sys/socket.h> /* for AF_UNSPEC */ +#include <arpa/inet.h> /* for TCPPROTO and others */ + +/* for errors returned by getaddrinfo */ +#if !defined EAI_NONAME +#define EAI_NONAME -2 /**< NAME or SERVICE is unknown */ +#define EAI_AGAIN -3 /**< temporary failure in name resolution */ +#define EAI_FAIL -4 /**< non-recoverable failure in name resultion */ +#define EAI_FAMILY -6 /**< socket family not supported */ +#define EAI_MEMORY -10 /**< memory allocation failure */ +#endif + +/* for ai_flags */ +#if !defined AI_PASSIVE +#define AI_PASSIVE 1 /**< socket is intended for bind() + listen() */ +#define AI_CANONNAME 2 /**< return canonical name */ +#define AI_NUMERICHOST 4 /**< don't use name resolution */ +#endif + +/* for flags in getnameinfo */ +#if !defined NI_NUMERICHOST +#define NI_NUMERICHOST 1 /**< don't try to look up hostname. */ +#define NI_NUMERICSERV 2 /**< don't convert port number to name. */ +#endif + +struct wolf_port_addrinfo +{ + int ai_flags; + int ai_family; + int ai_socktype; + int ai_protocol; + size_t ai_addrlen; + struct sockaddr *ai_addr; + char *ai_canonname; + struct wolf_port_addrinfo *ai_next; +}; + +int wolf_port_getaddrinfo( const char *host_name, + const char *service_name, + const struct wolf_port_addrinfo *hints, + struct wolf_port_addrinfo **result ); +void wolf_port_freeaddrinfo( struct wolf_port_addrinfo *result ); + +int wolf_port_getnameinfo( const struct sockaddr *sa, socklen_t salen, + char *host, size_t hostlen, + char *serv, size_t servlen, + int flags ); + +const char *wolf_port_gai_strerror( int errcode ); + +#if !defined HAVE_GETADDRINFO +#define addrinfo wolf_port_addrinfo +#define getaddrinfo( host_name, service_name, hints, result ) wolf_port_getaddrinfo( host_name, service_name, hints, result ) +#define freeaddrinfo( result ) wolf_port_freeaddrinfo( result ) +#define getnameinfo( sa, salen, host, hostlen, serv, servlen, flags ) wolf_port_getnameinfo( sa, salen, host, hostlen, serv, servlen, flags ) +#define gai_strerror( errcode ) wolf_port_gai_strerror( errcode ) +#endif + +#endif /* !defined HAVE_GETADDRINFO || defined TEST_GETADDRINFO */ + +/* gai_strerror is not thread-safe. Some platforms (like AIX 6.1) started to + * introduce a thread-safe version gai_strerror_r + */ +#if !defined HAVE_GAI_STRERROR_R || defined TEST_GAI_STRERROR_R +int wolf_port_gai_strerror_r( int errcode, char *buf, size_t buflen ); +#if !defined HAVE_GAI_STRERROR_R +#define gai_strerror_r( errcode, buf, buflen ) wolf_port_gai_strerror_r( errcode, buf, buflen ) +#endif /* !defined HAVE_GAI_STRERROR_R */ + +#endif /* !defined HAVE_GAI_STRERROR_R || defined TEST_GAI_STRERROR_R */ + /** @} */ /* @addtogroup wolf_port */ #endif /* ifndef WOLF_NETDB_H */ |