diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | compat/mingw.c | 169 | ||||
| -rw-r--r-- | compat/mingw.h | 13 |
3 files changed, 181 insertions, 2 deletions
@@ -982,7 +982,6 @@ ifneq (,$(findstring MINGW,$(uname_S))) NEEDS_CRYPTO_WITH_SSL = YesPlease NO_LIBGEN_H = YesPlease NO_SYMLINK_HEAD = YesPlease - NO_IPV6 = YesPlease NO_SETENV = YesPlease NO_UNSETENV = YesPlease NO_STRCASESTR = YesPlease diff --git a/compat/mingw.c b/compat/mingw.c index f9d82ff103..0d73f15fa8 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -903,10 +903,129 @@ char **make_augmented_environ(const char *const *vars) return env; } +/* + * Note, this isn't a complete replacement for getaddrinfo. It assumes + * that service contains a numerical port, or that it it is null. It + * does a simple search using gethostbyname, and returns one IPv4 host + * if one was found. + */ +static int WSAAPI getaddrinfo_stub(const char *node, const char *service, + const struct addrinfo *hints, + struct addrinfo **res) +{ + struct hostent *h = gethostbyname(node); + struct addrinfo *ai; + struct sockaddr_in *sin; + + if (!h) + return WSAGetLastError(); + + ai = xmalloc(sizeof(struct addrinfo)); + *res = ai; + ai->ai_flags = 0; + ai->ai_family = AF_INET; + ai->ai_socktype = hints->ai_socktype; + switch (hints->ai_socktype) { + case SOCK_STREAM: + ai->ai_protocol = IPPROTO_TCP; + break; + case SOCK_DGRAM: + ai->ai_protocol = IPPROTO_UDP; + break; + default: + ai->ai_protocol = 0; + break; + } + ai->ai_addrlen = sizeof(struct sockaddr_in); + ai->ai_canonname = strdup(h->h_name); + + sin = xmalloc(ai->ai_addrlen); + memset(sin, 0, ai->ai_addrlen); + sin->sin_family = AF_INET; + if (service) + sin->sin_port = htons(atoi(service)); + sin->sin_addr = *(struct in_addr *)h->h_addr; + ai->ai_addr = (struct sockaddr *)sin; + ai->ai_next = 0; + return 0; +} + +static void WSAAPI freeaddrinfo_stub(struct addrinfo *res) +{ + free(res->ai_canonname); + free(res->ai_addr); + free(res); +} + +static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, + char *serv, DWORD servlen, int flags) +{ + const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; + if (sa->sa_family != AF_INET) + return EAI_FAMILY; + if (!host && !serv) + return EAI_NONAME; + + if (host && hostlen > 0) { + struct hostent *ent = NULL; + if (!(flags & NI_NUMERICHOST)) + ent = gethostbyaddr((const char *)&sin->sin_addr, + sizeof(sin->sin_addr), AF_INET); + + if (ent) + snprintf(host, hostlen, "%s", ent->h_name); + else if (flags & NI_NAMEREQD) + return EAI_NONAME; + else + snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr)); + } + + if (serv && servlen > 0) { + struct servent *ent = NULL; + if (!(flags & NI_NUMERICSERV)) + ent = getservbyport(sin->sin_port, + flags & NI_DGRAM ? "udp" : "tcp"); + + if (ent) + snprintf(serv, servlen, "%s", ent->s_name); + else + snprintf(serv, servlen, "%d", ntohs(sin->sin_port)); + } + + return 0; +} + +static HMODULE ipv6_dll = NULL; +static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res); +static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service, + const struct addrinfo *hints, + struct addrinfo **res); +static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, + char *serv, DWORD servlen, int flags); +/* + * gai_strerror is an inline function in the ws2tcpip.h header, so we + * don't need to try to load that one dynamically. + */ + +static void socket_cleanup(void) +{ + WSACleanup(); + if (ipv6_dll) + FreeLibrary(ipv6_dll); + ipv6_dll = NULL; + ipv6_freeaddrinfo = freeaddrinfo_stub; + ipv6_getaddrinfo = getaddrinfo_stub; + ipv6_getnameinfo = getnameinfo_stub; +} + static void ensure_socket_initialization(void) { WSADATA wsa; static int initialized = 0; + const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL }; + const char **name; if (initialized) return; @@ -914,7 +1033,35 @@ static void ensure_socket_initialization(void) if (WSAStartup(MAKEWORD(2,2), &wsa)) die("unable to initialize winsock subsystem, error %d", WSAGetLastError()); - atexit((void(*)(void)) WSACleanup); + + for (name = libraries; *name; name++) { + ipv6_dll = LoadLibrary(*name); + if (!ipv6_dll) + continue; + + ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *)) + GetProcAddress(ipv6_dll, "freeaddrinfo"); + ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *, + const struct addrinfo *, + struct addrinfo **)) + GetProcAddress(ipv6_dll, "getaddrinfo"); + ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *, + socklen_t, char *, DWORD, + char *, DWORD, int)) + GetProcAddress(ipv6_dll, "getnameinfo"); + if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) { + FreeLibrary(ipv6_dll); + ipv6_dll = NULL; + } else + break; + } + if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) { + ipv6_freeaddrinfo = freeaddrinfo_stub; + ipv6_getaddrinfo = getaddrinfo_stub; + ipv6_getnameinfo = getnameinfo_stub; + } + + atexit(socket_cleanup); initialized = 1; } @@ -925,6 +1072,26 @@ struct hostent *mingw_gethostbyname(const char *host) return gethostbyname(host); } +void mingw_freeaddrinfo(struct addrinfo *res) +{ + ipv6_freeaddrinfo(res); +} + +int mingw_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, struct addrinfo **res) +{ + ensure_socket_initialization(); + return ipv6_getaddrinfo(node, service, hints, res); +} + +int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, char *serv, DWORD servlen, + int flags) +{ + ensure_socket_initialization(); + return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); +} + int mingw_socket(int domain, int type, int protocol) { int sockfd; diff --git a/compat/mingw.h b/compat/mingw.h index 51993ef114..b3d299f5bc 100644 --- a/compat/mingw.h +++ b/compat/mingw.h @@ -1,4 +1,5 @@ #include <winsock2.h> +#include <ws2tcpip.h> /* * things that are not available in header files @@ -178,6 +179,18 @@ char *mingw_getenv(const char *name); struct hostent *mingw_gethostbyname(const char *host); #define gethostbyname mingw_gethostbyname +void mingw_freeaddrinfo(struct addrinfo *res); +#define freeaddrinfo mingw_freeaddrinfo + +int mingw_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, struct addrinfo **res); +#define getaddrinfo mingw_getaddrinfo + +int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, char *serv, DWORD servlen, + int flags); +#define getnameinfo mingw_getnameinfo + int mingw_socket(int domain, int type, int protocol); #define socket mingw_socket |