diff options
Diffstat (limited to 'jni/ruby/ext/socket/raddrinfo.c')
| -rw-r--r-- | jni/ruby/ext/socket/raddrinfo.c | 2575 |
1 files changed, 2575 insertions, 0 deletions
diff --git a/jni/ruby/ext/socket/raddrinfo.c b/jni/ruby/ext/socket/raddrinfo.c new file mode 100644 index 0000000..caa08fe --- /dev/null +++ b/jni/ruby/ext/socket/raddrinfo.c @@ -0,0 +1,2575 @@ +/************************************************ + + raddrinfo.c - + + created at: Thu Mar 31 12:21:29 JST 1994 + + Copyright (C) 1993-2007 Yukihiro Matsumoto + +************************************************/ + +#include "rubysocket.h" + +#if defined(INET6) && (defined(LOOKUP_ORDER_HACK_INET) || defined(LOOKUP_ORDER_HACK_INET6)) +#define LOOKUP_ORDERS (sizeof(lookup_order_table) / sizeof(lookup_order_table[0])) +static const int lookup_order_table[] = { +#if defined(LOOKUP_ORDER_HACK_INET) + PF_INET, PF_INET6, PF_UNSPEC, +#elif defined(LOOKUP_ORDER_HACK_INET6) + PF_INET6, PF_INET, PF_UNSPEC, +#else + /* should not happen */ +#endif +}; + +static int +ruby_getaddrinfo(const char *nodename, const char *servname, + const struct addrinfo *hints, struct addrinfo **res) +{ + struct addrinfo tmp_hints; + int i, af, error; + + if (hints->ai_family != PF_UNSPEC) { + return getaddrinfo(nodename, servname, hints, res); + } + + for (i = 0; i < LOOKUP_ORDERS; i++) { + af = lookup_order_table[i]; + MEMCPY(&tmp_hints, hints, struct addrinfo, 1); + tmp_hints.ai_family = af; + error = getaddrinfo(nodename, servname, &tmp_hints, res); + if (error) { + if (tmp_hints.ai_family == PF_UNSPEC) { + break; + } + } + else { + break; + } + } + + return error; +} +#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo((node),(serv),(hints),(res)) +#endif + +#if defined(_AIX) +static int +ruby_getaddrinfo__aix(const char *nodename, const char *servname, + const struct addrinfo *hints, struct addrinfo **res) +{ + int error = getaddrinfo(nodename, servname, hints, res); + struct addrinfo *r; + if (error) + return error; + for (r = *res; r != NULL; r = r->ai_next) { + if (r->ai_addr->sa_family == 0) + r->ai_addr->sa_family = r->ai_family; + if (r->ai_addr->sa_len == 0) + r->ai_addr->sa_len = r->ai_addrlen; + } + return 0; +} +#undef getaddrinfo +#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo__aix((node),(serv),(hints),(res)) +static int +ruby_getnameinfo__aix(const struct sockaddr *sa, size_t salen, + char *host, size_t hostlen, + char *serv, size_t servlen, int flags) +{ + struct sockaddr_in6 *sa6; + u_int32_t *a6; + + if (sa->sa_family == AF_INET6) { + sa6 = (struct sockaddr_in6 *)sa; + a6 = sa6->sin6_addr.u6_addr.u6_addr32; + + if (a6[0] == 0 && a6[1] == 0 && a6[2] == 0 && a6[3] == 0) { + strncpy(host, "::", hostlen); + snprintf(serv, servlen, "%d", sa6->sin6_port); + return 0; + } + } + return getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); +} +#undef getnameinfo +#define getnameinfo(sa, salen, host, hostlen, serv, servlen, flags) \ + ruby_getnameinfo__aix((sa), (salen), (host), (hostlen), (serv), (servlen), (flags)) +#endif + +static int str_is_number(const char *); + +#if defined(__APPLE__) +static int +ruby_getaddrinfo__darwin(const char *nodename, const char *servname, + const struct addrinfo *hints, struct addrinfo **res) +{ + /* fix [ruby-core:29427] */ + const char *tmp_servname; + struct addrinfo tmp_hints; + int error; + + tmp_servname = servname; + MEMCPY(&tmp_hints, hints, struct addrinfo, 1); + if (nodename && servname) { + if (str_is_number(tmp_servname) && atoi(servname) == 0) { + tmp_servname = NULL; +#ifdef AI_NUMERICSERV + if (tmp_hints.ai_flags) tmp_hints.ai_flags &= ~AI_NUMERICSERV; +#endif + } + } + + error = getaddrinfo(nodename, tmp_servname, &tmp_hints, res); + if (error == 0) { + /* [ruby-dev:23164] */ + struct addrinfo *r; + r = *res; + while (r) { + if (! r->ai_socktype) r->ai_socktype = hints->ai_socktype; + if (! r->ai_protocol) { + if (r->ai_socktype == SOCK_DGRAM) { + r->ai_protocol = IPPROTO_UDP; + } + else if (r->ai_socktype == SOCK_STREAM) { + r->ai_protocol = IPPROTO_TCP; + } + } + r = r->ai_next; + } + } + + return error; +} +#undef getaddrinfo +#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo__darwin((node),(serv),(hints),(res)) +#endif + +#ifndef GETADDRINFO_EMU +struct getaddrinfo_arg +{ + const char *node; + const char *service; + const struct addrinfo *hints; + struct addrinfo **res; +}; + +static void * +nogvl_getaddrinfo(void *arg) +{ + int ret; + struct getaddrinfo_arg *ptr = arg; + ret = getaddrinfo(ptr->node, ptr->service, ptr->hints, ptr->res); +#ifdef __linux__ + /* On Linux (mainly Ubuntu 13.04) /etc/nsswitch.conf has mdns4 and + * it cause getaddrinfo to return EAI_SYSTEM/ENOENT. [ruby-list:49420] + */ + if (ret == EAI_SYSTEM && errno == ENOENT) + ret = EAI_NONAME; +#endif + return (void *)(VALUE)ret; +} +#endif + +static int +numeric_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, + struct addrinfo **res) +{ +#ifdef HAVE_INET_PTON +# if defined __MINGW64__ +# define inet_pton(f,s,d) rb_w32_inet_pton(f,s,d) +# endif + + if (node && (!service || strspn(service, "0123456789") == strlen(service))) { + static const struct { + int socktype; + int protocol; + } list[] = { + { SOCK_STREAM, IPPROTO_TCP }, + { SOCK_DGRAM, IPPROTO_UDP }, + { SOCK_RAW, 0 } + }; + struct addrinfo *ai = NULL; + int port = service ? (unsigned short)atoi(service): 0; + int hint_family = hints ? hints->ai_family : PF_UNSPEC; + int hint_socktype = hints ? hints->ai_socktype : 0; + int hint_protocol = hints ? hints->ai_protocol : 0; + char ipv4addr[4]; +#ifdef AF_INET6 + char ipv6addr[16]; + if ((hint_family == PF_UNSPEC || hint_family == PF_INET6) && + strspn(node, "0123456789abcdefABCDEF.:") == strlen(node) && + inet_pton(AF_INET6, node, ipv6addr)) { + int i; + for (i = numberof(list)-1; 0 <= i; i--) { + if ((hint_socktype == 0 || hint_socktype == list[i].socktype) && + (hint_protocol == 0 || list[i].protocol == 0 || hint_protocol == list[i].protocol)) { + struct addrinfo *ai0 = xcalloc(1, sizeof(struct addrinfo)); + struct sockaddr_in6 *sa = xmalloc(sizeof(struct sockaddr_in6)); + INIT_SOCKADDR_IN6(sa, sizeof(struct sockaddr_in6)); + memcpy(&sa->sin6_addr, ipv6addr, sizeof(ipv6addr)); + sa->sin6_port = htons(port); + ai0->ai_family = PF_INET6; + ai0->ai_socktype = list[i].socktype; + ai0->ai_protocol = hint_protocol ? hint_protocol : list[i].protocol; + ai0->ai_addrlen = sizeof(struct sockaddr_in6); + ai0->ai_addr = (struct sockaddr *)sa; + ai0->ai_canonname = NULL; + ai0->ai_next = ai; + ai = ai0; + } + } + } + else +#endif + if ((hint_family == PF_UNSPEC || hint_family == PF_INET) && + strspn(node, "0123456789.") == strlen(node) && + inet_pton(AF_INET, node, ipv4addr)) { + int i; + for (i = numberof(list)-1; 0 <= i; i--) { + if ((hint_socktype == 0 || hint_socktype == list[i].socktype) && + (hint_protocol == 0 || list[i].protocol == 0 || hint_protocol == list[i].protocol)) { + struct addrinfo *ai0 = xcalloc(1, sizeof(struct addrinfo)); + struct sockaddr_in *sa = xmalloc(sizeof(struct sockaddr_in)); + INIT_SOCKADDR_IN(sa, sizeof(struct sockaddr_in)); + memcpy(&sa->sin_addr, ipv4addr, sizeof(ipv4addr)); + sa->sin_port = htons(port); + ai0->ai_family = PF_INET; + ai0->ai_socktype = list[i].socktype; + ai0->ai_protocol = hint_protocol ? hint_protocol : list[i].protocol; + ai0->ai_addrlen = sizeof(struct sockaddr_in); + ai0->ai_addr = (struct sockaddr *)sa; + ai0->ai_canonname = NULL; + ai0->ai_next = ai; + ai = ai0; + } + } + } + if (ai) { + *res = ai; + return 0; + } + } +#endif + return EAI_FAIL; +} + +int +rb_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, + struct rb_addrinfo **res) +{ + struct addrinfo *ai; + int ret; + int allocated_by_malloc = 0; + + ret = numeric_getaddrinfo(node, service, hints, &ai); + if (ret == 0) + allocated_by_malloc = 1; + else { +#ifdef GETADDRINFO_EMU + ret = getaddrinfo(node, service, hints, &ai); +#else + struct getaddrinfo_arg arg; + MEMZERO(&arg, struct getaddrinfo_arg, 1); + arg.node = node; + arg.service = service; + arg.hints = hints; + arg.res = &ai; + ret = (int)(VALUE)rb_thread_call_without_gvl(nogvl_getaddrinfo, &arg, RUBY_UBF_IO, 0); +#endif + } + + if (ret == 0) { + *res = (struct rb_addrinfo *)xmalloc(sizeof(struct rb_addrinfo)); + (*res)->allocated_by_malloc = allocated_by_malloc; + (*res)->ai = ai; + } + return ret; +} + +void +rb_freeaddrinfo(struct rb_addrinfo *ai) +{ + if (!ai->allocated_by_malloc) + freeaddrinfo(ai->ai); + else { + struct addrinfo *ai1, *ai2; + ai1 = ai->ai; + while (ai1) { + ai2 = ai1->ai_next; + xfree(ai1->ai_addr); + xfree(ai1); + ai1 = ai2; + } + } + xfree(ai); +} + +#ifndef GETADDRINFO_EMU +struct getnameinfo_arg +{ + const struct sockaddr *sa; + socklen_t salen; + int flags; + char *host; + size_t hostlen; + char *serv; + size_t servlen; +}; + +static void * +nogvl_getnameinfo(void *arg) +{ + struct getnameinfo_arg *ptr = arg; + return (void *)(VALUE)getnameinfo(ptr->sa, ptr->salen, + ptr->host, (socklen_t)ptr->hostlen, + ptr->serv, (socklen_t)ptr->servlen, + ptr->flags); +} +#endif + +int +rb_getnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, size_t hostlen, + char *serv, size_t servlen, int flags) +{ +#ifdef GETADDRINFO_EMU + return getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); +#else + struct getnameinfo_arg arg; + int ret; + arg.sa = sa; + arg.salen = salen; + arg.host = host; + arg.hostlen = hostlen; + arg.serv = serv; + arg.servlen = servlen; + arg.flags = flags; + ret = (int)(VALUE)rb_thread_call_without_gvl(nogvl_getnameinfo, &arg, RUBY_UBF_IO, 0); + return ret; +#endif +} + +static void +make_ipaddr0(struct sockaddr *addr, socklen_t addrlen, char *buf, size_t buflen) +{ + int error; + + error = rb_getnameinfo(addr, addrlen, buf, buflen, NULL, 0, NI_NUMERICHOST); + if (error) { + rsock_raise_socket_error("getnameinfo", error); + } +} + +VALUE +rsock_make_ipaddr(struct sockaddr *addr, socklen_t addrlen) +{ + char hbuf[1024]; + + make_ipaddr0(addr, addrlen, hbuf, sizeof(hbuf)); + return rb_str_new2(hbuf); +} + +static void +make_inetaddr(unsigned int host, char *buf, size_t buflen) +{ + struct sockaddr_in sin; + + INIT_SOCKADDR_IN(&sin, sizeof(sin)); + sin.sin_addr.s_addr = host; + make_ipaddr0((struct sockaddr*)&sin, sizeof(sin), buf, buflen); +} + +static int +str_is_number(const char *p) +{ + char *ep; + + if (!p || *p == '\0') + return 0; + ep = NULL; + (void)STRTOUL(p, &ep, 10); + if (ep && *ep == '\0') + return 1; + else + return 0; +} + +static char* +host_str(VALUE host, char *hbuf, size_t hbuflen, int *flags_ptr) +{ + if (NIL_P(host)) { + return NULL; + } + else if (rb_obj_is_kind_of(host, rb_cInteger)) { + unsigned int i = NUM2UINT(host); + + make_inetaddr(htonl(i), hbuf, hbuflen); + if (flags_ptr) *flags_ptr |= AI_NUMERICHOST; + return hbuf; + } + else { + char *name; + + SafeStringValue(host); + name = RSTRING_PTR(host); + if (!name || *name == 0 || (name[0] == '<' && strcmp(name, "<any>") == 0)) { + make_inetaddr(INADDR_ANY, hbuf, hbuflen); + if (flags_ptr) *flags_ptr |= AI_NUMERICHOST; + } + else if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) { + make_inetaddr(INADDR_BROADCAST, hbuf, hbuflen); + if (flags_ptr) *flags_ptr |= AI_NUMERICHOST; + } + else if (strlen(name) >= hbuflen) { + rb_raise(rb_eArgError, "hostname too long (%"PRIuSIZE")", + strlen(name)); + } + else { + strcpy(hbuf, name); + } + return hbuf; + } +} + +static char* +port_str(VALUE port, char *pbuf, size_t pbuflen, int *flags_ptr) +{ + if (NIL_P(port)) { + return 0; + } + else if (FIXNUM_P(port)) { + snprintf(pbuf, pbuflen, "%ld", FIX2LONG(port)); +#ifdef AI_NUMERICSERV + if (flags_ptr) *flags_ptr |= AI_NUMERICSERV; +#endif + return pbuf; + } + else { + char *serv; + + SafeStringValue(port); + serv = RSTRING_PTR(port); + if (strlen(serv) >= pbuflen) { + rb_raise(rb_eArgError, "service name too long (%"PRIuSIZE")", + strlen(serv)); + } + strcpy(pbuf, serv); + return pbuf; + } +} + +struct rb_addrinfo* +rsock_getaddrinfo(VALUE host, VALUE port, struct addrinfo *hints, int socktype_hack) +{ + struct rb_addrinfo* res = NULL; + char *hostp, *portp; + int error; + char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; + int additional_flags = 0; + + hostp = host_str(host, hbuf, sizeof(hbuf), &additional_flags); + portp = port_str(port, pbuf, sizeof(pbuf), &additional_flags); + + if (socktype_hack && hints->ai_socktype == 0 && str_is_number(portp)) { + hints->ai_socktype = SOCK_DGRAM; + } + hints->ai_flags |= additional_flags; + + error = rb_getaddrinfo(hostp, portp, hints, &res); + if (error) { + if (hostp && hostp[strlen(hostp)-1] == '\n') { + rb_raise(rb_eSocket, "newline at the end of hostname"); + } + rsock_raise_socket_error("getaddrinfo", error); + } + + return res; +} + +struct rb_addrinfo* +rsock_addrinfo(VALUE host, VALUE port, int socktype, int flags) +{ + struct addrinfo hints; + + MEMZERO(&hints, struct addrinfo, 1); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = socktype; + hints.ai_flags = flags; + return rsock_getaddrinfo(host, port, &hints, 1); +} + +VALUE +rsock_ipaddr(struct sockaddr *sockaddr, socklen_t sockaddrlen, int norevlookup) +{ + VALUE family, port, addr1, addr2; + VALUE ary; + int error; + char hbuf[1024], pbuf[1024]; + ID id; + + id = rsock_intern_family(sockaddr->sa_family); + if (id) { + family = rb_str_dup(rb_id2str(id)); + } + else { + sprintf(pbuf, "unknown:%d", sockaddr->sa_family); + family = rb_str_new2(pbuf); + } + + addr1 = Qnil; + if (!norevlookup) { + error = rb_getnameinfo(sockaddr, sockaddrlen, hbuf, sizeof(hbuf), + NULL, 0, 0); + if (! error) { + addr1 = rb_str_new2(hbuf); + } + } + error = rb_getnameinfo(sockaddr, sockaddrlen, hbuf, sizeof(hbuf), + pbuf, sizeof(pbuf), NI_NUMERICHOST | NI_NUMERICSERV); + if (error) { + rsock_raise_socket_error("getnameinfo", error); + } + addr2 = rb_str_new2(hbuf); + if (addr1 == Qnil) { + addr1 = addr2; + } + port = INT2FIX(atoi(pbuf)); + ary = rb_ary_new3(4, family, port, addr1, addr2); + + return ary; +} + +#ifdef HAVE_SYS_UN_H +VALUE +rsock_unixpath_str(struct sockaddr_un *sockaddr, socklen_t len) +{ + char *s, *e; + s = sockaddr->sun_path; + e = (char *)sockaddr + len; + while (s < e && *(e-1) == '\0') + e--; + if (s <= e) + return rb_str_new(s, e-s); + else + return rb_str_new2(""); +} + +VALUE +rsock_unixaddr(struct sockaddr_un *sockaddr, socklen_t len) +{ + return rb_assoc_new(rb_str_new2("AF_UNIX"), + rsock_unixpath_str(sockaddr, len)); +} + +socklen_t +rsock_unix_sockaddr_len(VALUE path) +{ +#ifdef __linux__ + if (RSTRING_LEN(path) == 0) { + /* autobind; see unix(7) for details. */ + return (socklen_t) sizeof(sa_family_t); + } + else if (RSTRING_PTR(path)[0] == '\0') { + /* abstract namespace; see unix(7) for details. */ + if (SOCKLEN_MAX - offsetof(struct sockaddr_un, sun_path) < (size_t)RSTRING_LEN(path)) + rb_raise(rb_eArgError, "Linux abstract socket too long"); + return (socklen_t) offsetof(struct sockaddr_un, sun_path) + + RSTRING_SOCKLEN(path); + } + else { +#endif + return (socklen_t) sizeof(struct sockaddr_un); +#ifdef __linux__ + } +#endif +} +#endif + +struct hostent_arg { + VALUE host; + struct rb_addrinfo* addr; + VALUE (*ipaddr)(struct sockaddr*, socklen_t); +}; + +static VALUE +make_hostent_internal(struct hostent_arg *arg) +{ + VALUE host = arg->host; + struct addrinfo* addr = arg->addr->ai; + VALUE (*ipaddr)(struct sockaddr*, socklen_t) = arg->ipaddr; + + struct addrinfo *ai; + struct hostent *h; + VALUE ary, names; + char **pch; + const char* hostp; + char hbuf[NI_MAXHOST]; + + ary = rb_ary_new(); + if (addr->ai_canonname) { + hostp = addr->ai_canonname; + } + else { + hostp = host_str(host, hbuf, sizeof(hbuf), NULL); + } + rb_ary_push(ary, rb_str_new2(hostp)); + + if (addr->ai_canonname && strlen(addr->ai_canonname) < NI_MAXHOST && + (h = gethostbyname(addr->ai_canonname))) { + names = rb_ary_new(); + if (h->h_aliases != NULL) { + for (pch = h->h_aliases; *pch; pch++) { + rb_ary_push(names, rb_str_new2(*pch)); + } + } + } + else { + names = rb_ary_new2(0); + } + rb_ary_push(ary, names); + rb_ary_push(ary, INT2NUM(addr->ai_family)); + for (ai = addr; ai; ai = ai->ai_next) { + rb_ary_push(ary, (*ipaddr)(ai->ai_addr, ai->ai_addrlen)); + } + + return ary; +} + +VALUE +rsock_freeaddrinfo(VALUE arg) +{ + struct rb_addrinfo *addr = (struct rb_addrinfo *)arg; + rb_freeaddrinfo(addr); + return Qnil; +} + +VALUE +rsock_make_hostent(VALUE host, struct rb_addrinfo *addr, VALUE (*ipaddr)(struct sockaddr *, socklen_t)) +{ + struct hostent_arg arg; + + arg.host = host; + arg.addr = addr; + arg.ipaddr = ipaddr; + return rb_ensure(make_hostent_internal, (VALUE)&arg, + rsock_freeaddrinfo, (VALUE)addr); +} + +typedef struct { + VALUE inspectname; + VALUE canonname; + int pfamily; + int socktype; + int protocol; + socklen_t sockaddr_len; + union_sockaddr addr; +} rb_addrinfo_t; + +static void +addrinfo_mark(void *ptr) +{ + rb_addrinfo_t *rai = ptr; + if (rai) { + rb_gc_mark(rai->inspectname); + rb_gc_mark(rai->canonname); + } +} + +#define addrinfo_free RUBY_TYPED_DEFAULT_FREE + +static size_t +addrinfo_memsize(const void *ptr) +{ + return ptr ? sizeof(rb_addrinfo_t) : 0; +} + +static const rb_data_type_t addrinfo_type = { + "socket/addrinfo", + {addrinfo_mark, addrinfo_free, addrinfo_memsize,}, +}; + +static VALUE +addrinfo_s_allocate(VALUE klass) +{ + return TypedData_Wrap_Struct(klass, &addrinfo_type, 0); +} + +#define IS_ADDRINFO(obj) rb_typeddata_is_kind_of((obj), &addrinfo_type) +static inline rb_addrinfo_t * +check_addrinfo(VALUE self) +{ + return rb_check_typeddata(self, &addrinfo_type); +} + +static rb_addrinfo_t * +get_addrinfo(VALUE self) +{ + rb_addrinfo_t *rai = check_addrinfo(self); + + if (!rai) { + rb_raise(rb_eTypeError, "uninitialized socket address"); + } + return rai; +} + + +static rb_addrinfo_t * +alloc_addrinfo(void) +{ + rb_addrinfo_t *rai = ZALLOC(rb_addrinfo_t); + rai->inspectname = Qnil; + rai->canonname = Qnil; + return rai; +} + +static void +init_addrinfo(rb_addrinfo_t *rai, struct sockaddr *sa, socklen_t len, + int pfamily, int socktype, int protocol, + VALUE canonname, VALUE inspectname) +{ + if ((socklen_t)sizeof(rai->addr) < len) + rb_raise(rb_eArgError, "sockaddr string too big"); + memcpy((void *)&rai->addr, (void *)sa, len); + rai->sockaddr_len = len; + + rai->pfamily = pfamily; + rai->socktype = socktype; + rai->protocol = protocol; + rai->canonname = canonname; + rai->inspectname = inspectname; +} + +VALUE +rsock_addrinfo_new(struct sockaddr *addr, socklen_t len, + int family, int socktype, int protocol, + VALUE canonname, VALUE inspectname) +{ + VALUE a; + rb_addrinfo_t *rai; + + a = addrinfo_s_allocate(rb_cAddrinfo); + DATA_PTR(a) = rai = alloc_addrinfo(); + init_addrinfo(rai, addr, len, family, socktype, protocol, canonname, inspectname); + return a; +} + +static struct rb_addrinfo * +call_getaddrinfo(VALUE node, VALUE service, + VALUE family, VALUE socktype, VALUE protocol, VALUE flags, + int socktype_hack) +{ + struct addrinfo hints; + struct rb_addrinfo *res; + + MEMZERO(&hints, struct addrinfo, 1); + hints.ai_family = NIL_P(family) ? PF_UNSPEC : rsock_family_arg(family); + + if (!NIL_P(socktype)) { + hints.ai_socktype = rsock_socktype_arg(socktype); + } + if (!NIL_P(protocol)) { + hints.ai_protocol = NUM2INT(protocol); + } + if (!NIL_P(flags)) { + hints.ai_flags = NUM2INT(flags); + } + res = rsock_getaddrinfo(node, service, &hints, socktype_hack); + + if (res == NULL) + rb_raise(rb_eSocket, "host not found"); + return res; +} + +static VALUE make_inspectname(VALUE node, VALUE service, struct addrinfo *res); + +static void +init_addrinfo_getaddrinfo(rb_addrinfo_t *rai, VALUE node, VALUE service, + VALUE family, VALUE socktype, VALUE protocol, VALUE flags, + VALUE inspectnode, VALUE inspectservice) +{ + struct rb_addrinfo *res = call_getaddrinfo(node, service, family, socktype, protocol, flags, 1); + VALUE canonname; + VALUE inspectname = rb_str_equal(node, inspectnode) ? Qnil : make_inspectname(inspectnode, inspectservice, res->ai); + + canonname = Qnil; + if (res->ai->ai_canonname) { + canonname = rb_tainted_str_new_cstr(res->ai->ai_canonname); + OBJ_FREEZE(canonname); + } + + init_addrinfo(rai, res->ai->ai_addr, res->ai->ai_addrlen, + NUM2INT(family), NUM2INT(socktype), NUM2INT(protocol), + canonname, inspectname); + + rb_freeaddrinfo(res); +} + +static VALUE +make_inspectname(VALUE node, VALUE service, struct addrinfo *res) +{ + VALUE inspectname = Qnil; + + if (res) { + /* drop redundant information which also shown in address:port part. */ + char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; + int ret; + ret = rb_getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, + sizeof(hbuf), pbuf, sizeof(pbuf), + NI_NUMERICHOST|NI_NUMERICSERV); + if (ret == 0) { + if (RB_TYPE_P(node, T_STRING) && strcmp(hbuf, RSTRING_PTR(node)) == 0) + node = Qnil; + if (RB_TYPE_P(service, T_STRING) && strcmp(pbuf, RSTRING_PTR(service)) == 0) + service = Qnil; + else if (RB_TYPE_P(service, T_FIXNUM) && atoi(pbuf) == FIX2INT(service)) + service = Qnil; + } + } + + if (RB_TYPE_P(node, T_STRING)) { + inspectname = rb_str_dup(node); + } + if (RB_TYPE_P(service, T_STRING)) { + if (NIL_P(inspectname)) + inspectname = rb_sprintf(":%s", StringValueCStr(service)); + else + rb_str_catf(inspectname, ":%s", StringValueCStr(service)); + } + else if (RB_TYPE_P(service, T_FIXNUM) && FIX2INT(service) != 0) + { + if (NIL_P(inspectname)) + inspectname = rb_sprintf(":%d", FIX2INT(service)); + else + rb_str_catf(inspectname, ":%d", FIX2INT(service)); + } + if (!NIL_P(inspectname)) { + OBJ_INFECT(inspectname, node); + OBJ_INFECT(inspectname, service); + OBJ_FREEZE(inspectname); + } + return inspectname; +} + +static VALUE +addrinfo_firstonly_new(VALUE node, VALUE service, VALUE family, VALUE socktype, VALUE protocol, VALUE flags) +{ + VALUE ret; + VALUE canonname; + VALUE inspectname; + + struct rb_addrinfo *res = call_getaddrinfo(node, service, family, socktype, protocol, flags, 0); + + inspectname = make_inspectname(node, service, res->ai); + + canonname = Qnil; + if (res->ai->ai_canonname) { + canonname = rb_tainted_str_new_cstr(res->ai->ai_canonname); + OBJ_FREEZE(canonname); + } + + ret = rsock_addrinfo_new(res->ai->ai_addr, res->ai->ai_addrlen, + res->ai->ai_family, res->ai->ai_socktype, + res->ai->ai_protocol, + canonname, inspectname); + + rb_freeaddrinfo(res); + return ret; +} + +static VALUE +addrinfo_list_new(VALUE node, VALUE service, VALUE family, VALUE socktype, VALUE protocol, VALUE flags) +{ + VALUE ret; + struct addrinfo *r; + VALUE inspectname; + + struct rb_addrinfo *res = call_getaddrinfo(node, service, family, socktype, protocol, flags, 0); + + inspectname = make_inspectname(node, service, res->ai); + + ret = rb_ary_new(); + for (r = res->ai; r; r = r->ai_next) { + VALUE addr; + VALUE canonname = Qnil; + + if (r->ai_canonname) { + canonname = rb_tainted_str_new_cstr(r->ai_canonname); + OBJ_FREEZE(canonname); + } + + addr = rsock_addrinfo_new(r->ai_addr, r->ai_addrlen, + r->ai_family, r->ai_socktype, r->ai_protocol, + canonname, inspectname); + + rb_ary_push(ret, addr); + } + + rb_freeaddrinfo(res); + return ret; +} + + +#ifdef HAVE_SYS_UN_H +static void +init_unix_addrinfo(rb_addrinfo_t *rai, VALUE path, int socktype) +{ + struct sockaddr_un un; + socklen_t len; + + StringValue(path); + + if (sizeof(un.sun_path) < (size_t)RSTRING_LEN(path)) + rb_raise(rb_eArgError, + "too long unix socket path (%"PRIuSIZE" bytes given but %"PRIuSIZE" bytes max)", + (size_t)RSTRING_LEN(path), sizeof(un.sun_path)); + + INIT_SOCKADDR_UN(&un, sizeof(struct sockaddr_un)); + memcpy((void*)&un.sun_path, RSTRING_PTR(path), RSTRING_LEN(path)); + + len = rsock_unix_sockaddr_len(path); + init_addrinfo(rai, (struct sockaddr *)&un, len, + PF_UNIX, socktype, 0, Qnil, Qnil); +} +#endif + +/* + * call-seq: + * Addrinfo.new(sockaddr) => addrinfo + * Addrinfo.new(sockaddr, family) => addrinfo + * Addrinfo.new(sockaddr, family, socktype) => addrinfo + * Addrinfo.new(sockaddr, family, socktype, protocol) => addrinfo + * + * returns a new instance of Addrinfo. + * The instance contains sockaddr, family, socktype, protocol. + * sockaddr means struct sockaddr which can be used for connect(2), etc. + * family, socktype and protocol are integers which is used for arguments of socket(2). + * + * sockaddr is specified as an array or a string. + * The array should be compatible to the value of IPSocket#addr or UNIXSocket#addr. + * The string should be struct sockaddr as generated by + * Socket.sockaddr_in or Socket.unpack_sockaddr_un. + * + * sockaddr examples: + * - ["AF_INET", 46102, "localhost.localdomain", "127.0.0.1"] + * - ["AF_INET6", 42304, "ip6-localhost", "::1"] + * - ["AF_UNIX", "/tmp/sock"] + * - Socket.sockaddr_in("smtp", "2001:DB8::1") + * - Socket.sockaddr_in(80, "172.18.22.42") + * - Socket.sockaddr_in(80, "www.ruby-lang.org") + * - Socket.sockaddr_un("/tmp/sock") + * + * In an AF_INET/AF_INET6 sockaddr array, the 4th element, + * numeric IP address, is used to construct socket address in the Addrinfo instance. + * If the 3rd element, textual host name, is non-nil, it is also recorded but used only for Addrinfo#inspect. + * + * family is specified as an integer to specify the protocol family such as Socket::PF_INET. + * It can be a symbol or a string which is the constant name + * with or without PF_ prefix such as :INET, :INET6, :UNIX, "PF_INET", etc. + * If omitted, PF_UNSPEC is assumed. + * + * socktype is specified as an integer to specify the socket type such as Socket::SOCK_STREAM. + * It can be a symbol or a string which is the constant name + * with or without SOCK_ prefix such as :STREAM, :DGRAM, :RAW, "SOCK_STREAM", etc. + * If omitted, 0 is assumed. + * + * protocol is specified as an integer to specify the protocol such as Socket::IPPROTO_TCP. + * It must be an integer, unlike family and socktype. + * If omitted, 0 is assumed. + * Note that 0 is reasonable value for most protocols, except raw socket. + * + */ +static VALUE +addrinfo_initialize(int argc, VALUE *argv, VALUE self) +{ + rb_addrinfo_t *rai; + VALUE sockaddr_arg, sockaddr_ary, pfamily, socktype, protocol; + int i_pfamily, i_socktype, i_protocol; + struct sockaddr *sockaddr_ptr; + socklen_t sockaddr_len; + VALUE canonname = Qnil, inspectname = Qnil; + + if (check_addrinfo(self)) + rb_raise(rb_eTypeError, "already initialized socket address"); + DATA_PTR(self) = rai = alloc_addrinfo(); + + rb_scan_args(argc, argv, "13", &sockaddr_arg, &pfamily, &socktype, &protocol); + + i_pfamily = NIL_P(pfamily) ? PF_UNSPEC : rsock_family_arg(pfamily); + i_socktype = NIL_P(socktype) ? 0 : rsock_socktype_arg(socktype); + i_protocol = NIL_P(protocol) ? 0 : NUM2INT(protocol); + + sockaddr_ary = rb_check_array_type(sockaddr_arg); + if (!NIL_P(sockaddr_ary)) { + VALUE afamily = rb_ary_entry(sockaddr_ary, 0); + int af; + StringValue(afamily); + if (rsock_family_to_int(RSTRING_PTR(afamily), RSTRING_LEN(afamily), &af) == -1) + rb_raise(rb_eSocket, "unknown address family: %s", StringValueCStr(afamily)); + switch (af) { + case AF_INET: /* ["AF_INET", 46102, "localhost.localdomain", "127.0.0.1"] */ +#ifdef INET6 + case AF_INET6: /* ["AF_INET6", 42304, "ip6-localhost", "::1"] */ +#endif + { + VALUE service = rb_ary_entry(sockaddr_ary, 1); + VALUE nodename = rb_ary_entry(sockaddr_ary, 2); + VALUE numericnode = rb_ary_entry(sockaddr_ary, 3); + int flags; + + service = INT2NUM(NUM2INT(service)); + if (!NIL_P(nodename)) + StringValue(nodename); + StringValue(numericnode); + flags = AI_NUMERICHOST; +#ifdef AI_NUMERICSERV + flags |= AI_NUMERICSERV; +#endif + + init_addrinfo_getaddrinfo(rai, numericnode, service, + INT2NUM(i_pfamily ? i_pfamily : af), INT2NUM(i_socktype), INT2NUM(i_protocol), + INT2NUM(flags), + nodename, service); + break; + } + +#ifdef HAVE_SYS_UN_H + case AF_UNIX: /* ["AF_UNIX", "/tmp/sock"] */ + { + VALUE path = rb_ary_entry(sockaddr_ary, 1); + StringValue(path); + init_unix_addrinfo(rai, path, SOCK_STREAM); + break; + } +#endif + + default: + rb_raise(rb_eSocket, "unexpected address family"); + } + } + else { + StringValue(sockaddr_arg); + sockaddr_ptr = (struct sockaddr *)RSTRING_PTR(sockaddr_arg); + sockaddr_len = RSTRING_SOCKLEN(sockaddr_arg); + init_addrinfo(rai, sockaddr_ptr, sockaddr_len, + i_pfamily, i_socktype, i_protocol, + canonname, inspectname); + } + + return self; +} + +static int +get_afamily(struct sockaddr *addr, socklen_t len) +{ + if ((socklen_t)((char*)&addr->sa_family + sizeof(addr->sa_family) - (char*)addr) <= len) + return addr->sa_family; + else + return AF_UNSPEC; +} + +static int +ai_get_afamily(rb_addrinfo_t *rai) +{ + return get_afamily(&rai->addr.addr, rai->sockaddr_len); +} + +static VALUE +inspect_sockaddr(VALUE addrinfo, VALUE ret) +{ + rb_addrinfo_t *rai = get_addrinfo(addrinfo); + union_sockaddr *sockaddr = &rai->addr; + socklen_t socklen = rai->sockaddr_len; + return rsock_inspect_sockaddr((struct sockaddr *)sockaddr, socklen, ret); +} + +VALUE +rsock_inspect_sockaddr(struct sockaddr *sockaddr_arg, socklen_t socklen, VALUE ret) +{ + union_sockaddr *sockaddr = (union_sockaddr *)sockaddr_arg; + if (socklen == 0) { + rb_str_cat2(ret, "empty-sockaddr"); + } + else if ((long)socklen < ((char*)&sockaddr->addr.sa_family + sizeof(sockaddr->addr.sa_family)) - (char*)sockaddr) + rb_str_cat2(ret, "too-short-sockaddr"); + else { + switch (sockaddr->addr.sa_family) { + case AF_UNSPEC: + { + rb_str_cat2(ret, "UNSPEC"); + break; + } + + case AF_INET: + { + struct sockaddr_in *addr; + int port; + addr = &sockaddr->in; + if ((socklen_t)(((char*)&addr->sin_addr)-(char*)addr+0+1) <= socklen) + rb_str_catf(ret, "%d", ((unsigned char*)&addr->sin_addr)[0]); + else + rb_str_cat2(ret, "?"); + if ((socklen_t)(((char*)&addr->sin_addr)-(char*)addr+1+1) <= socklen) + rb_str_catf(ret, ".%d", ((unsigned char*)&addr->sin_addr)[1]); + else + rb_str_cat2(ret, ".?"); + if ((socklen_t)(((char*)&addr->sin_addr)-(char*)addr+2+1) <= socklen) + rb_str_catf(ret, ".%d", ((unsigned char*)&addr->sin_addr)[2]); + else + rb_str_cat2(ret, ".?"); + if ((socklen_t)(((char*)&addr->sin_addr)-(char*)addr+3+1) <= socklen) + rb_str_catf(ret, ".%d", ((unsigned char*)&addr->sin_addr)[3]); + else + rb_str_cat2(ret, ".?"); + + if ((socklen_t)(((char*)&addr->sin_port)-(char*)addr+(int)sizeof(addr->sin_port)) < socklen) { + port = ntohs(addr->sin_port); + if (port) + rb_str_catf(ret, ":%d", port); + } + else { + rb_str_cat2(ret, ":?"); + } + if ((socklen_t)sizeof(struct sockaddr_in) != socklen) + rb_str_catf(ret, " (%d bytes for %d bytes sockaddr_in)", + (int)socklen, + (int)sizeof(struct sockaddr_in)); + break; + } + +#ifdef AF_INET6 + case AF_INET6: + { + struct sockaddr_in6 *addr; + char hbuf[1024]; + int port; + int error; + if (socklen < (socklen_t)sizeof(struct sockaddr_in6)) { + rb_str_catf(ret, "too-short-AF_INET6-sockaddr %d bytes", (int)socklen); + } + else { + addr = &sockaddr->in6; + /* use getnameinfo for scope_id. + * RFC 4007: IPv6 Scoped Address Architecture + * draft-ietf-ipv6-scope-api-00.txt: Scoped Address Extensions to the IPv6 Basic Socket API + */ + error = getnameinfo(&sockaddr->addr, socklen, + hbuf, (socklen_t)sizeof(hbuf), NULL, 0, + NI_NUMERICHOST|NI_NUMERICSERV); + if (error) { + rsock_raise_socket_error("getnameinfo", error); + } + if (addr->sin6_port == 0) { + rb_str_cat2(ret, hbuf); + } + else { + port = ntohs(addr->sin6_port); + rb_str_catf(ret, "[%s]:%d", hbuf, port); + } + if ((socklen_t)sizeof(struct sockaddr_in6) < socklen) + rb_str_catf(ret, "(sockaddr %d bytes too long)", (int)(socklen - sizeof(struct sockaddr_in6))); + } + break; + } +#endif + +#ifdef HAVE_SYS_UN_H + case AF_UNIX: + { + struct sockaddr_un *addr = &sockaddr->un; + char *p, *s, *e; + s = addr->sun_path; + e = (char*)addr + socklen; + while (s < e && *(e-1) == '\0') + e--; + if (e < s) + rb_str_cat2(ret, "too-short-AF_UNIX-sockaddr"); + else if (s == e) + rb_str_cat2(ret, "empty-path-AF_UNIX-sockaddr"); + else { + int printable_only = 1; + p = s; + while (p < e) { + printable_only = printable_only && ISPRINT(*p) && !ISSPACE(*p); + p++; + } + if (printable_only) { /* only printable, no space */ + if (s[0] != '/') /* relative path */ + rb_str_cat2(ret, "UNIX "); + rb_str_cat(ret, s, p - s); + } + else { + rb_str_cat2(ret, "UNIX"); + while (s < e) + rb_str_catf(ret, ":%02x", (unsigned char)*s++); + } + } + break; + } +#endif + +#if defined(AF_PACKET) && defined(__linux__) + /* GNU/Linux */ + case AF_PACKET: + { + struct sockaddr_ll *addr; + const char *sep = "["; +#define CATSEP do { rb_str_cat2(ret, sep); sep = " "; } while (0); + + addr = (struct sockaddr_ll *)sockaddr; + + rb_str_cat2(ret, "PACKET"); + + if (offsetof(struct sockaddr_ll, sll_protocol) + sizeof(addr->sll_protocol) <= (size_t)socklen) { + CATSEP; + rb_str_catf(ret, "protocol=%d", ntohs(addr->sll_protocol)); + } + if (offsetof(struct sockaddr_ll, sll_ifindex) + sizeof(addr->sll_ifindex) <= (size_t)socklen) { + char buf[IFNAMSIZ]; + CATSEP; + if (if_indextoname(addr->sll_ifindex, buf) == NULL) + rb_str_catf(ret, "ifindex=%d", addr->sll_ifindex); + else + rb_str_catf(ret, "%s", buf); + } + if (offsetof(struct sockaddr_ll, sll_hatype) + sizeof(addr->sll_hatype) <= (size_t)socklen) { + CATSEP; + rb_str_catf(ret, "hatype=%d", addr->sll_hatype); + } + if (offsetof(struct sockaddr_ll, sll_pkttype) + sizeof(addr->sll_pkttype) <= (size_t)socklen) { + CATSEP; + if (addr->sll_pkttype == PACKET_HOST) + rb_str_cat2(ret, "HOST"); + else if (addr->sll_pkttype == PACKET_BROADCAST) + rb_str_cat2(ret, "BROADCAST"); + else if (addr->sll_pkttype == PACKET_MULTICAST) + rb_str_cat2(ret, "MULTICAST"); + else if (addr->sll_pkttype == PACKET_OTHERHOST) + rb_str_cat2(ret, "OTHERHOST"); + else if (addr->sll_pkttype == PACKET_OUTGOING) + rb_str_cat2(ret, "OUTGOING"); + else + rb_str_catf(ret, "pkttype=%d", addr->sll_pkttype); + } + if (socklen != (socklen_t)(offsetof(struct sockaddr_ll, sll_addr) + addr->sll_halen)) { + CATSEP; + if (offsetof(struct sockaddr_ll, sll_halen) + sizeof(addr->sll_halen) <= (size_t)socklen) { + rb_str_catf(ret, "halen=%d", addr->sll_halen); + } + } + if (offsetof(struct sockaddr_ll, sll_addr) < (size_t)socklen) { + socklen_t len, i; + CATSEP; + rb_str_cat2(ret, "hwaddr"); + len = addr->sll_halen; + if ((size_t)socklen < offsetof(struct sockaddr_ll, sll_addr) + len) + len = socklen - offsetof(struct sockaddr_ll, sll_addr); + for (i = 0; i < len; i++) { + rb_str_cat2(ret, i == 0 ? "=" : ":"); + rb_str_catf(ret, "%02x", addr->sll_addr[i]); + } + } + + if (socklen < (socklen_t)(offsetof(struct sockaddr_ll, sll_halen) + sizeof(addr->sll_halen)) || + (socklen_t)(offsetof(struct sockaddr_ll, sll_addr) + addr->sll_halen) != socklen) { + CATSEP; + rb_str_catf(ret, "(%d bytes for %d bytes sockaddr_ll)", + (int)socklen, (int)sizeof(struct sockaddr_ll)); + } + + rb_str_cat2(ret, "]"); +#undef CATSEP + + break; + } +#endif + +#if defined(AF_LINK) && defined(HAVE_TYPE_STRUCT_SOCKADDR_DL) + /* AF_LINK is defined in 4.4BSD derivations since Net2. + link_ntoa is also defined at Net2. + However Debian GNU/kFreeBSD defines AF_LINK but + don't have link_ntoa. */ + case AF_LINK: + { + /* + * Simple implementation using link_ntoa(): + * This doesn't work on Debian GNU/kFreeBSD 6.0.7 (squeeze). + * Also, the format is bit different. + * + * rb_str_catf(ret, "LINK %s", link_ntoa(&sockaddr->dl)); + * break; + */ + struct sockaddr_dl *addr = &sockaddr->dl; + char *np = NULL, *ap = NULL, *endp; + int nlen = 0, alen = 0; + int i, off; + const char *sep = "["; +#define CATSEP do { rb_str_cat2(ret, sep); sep = " "; } while (0); + + rb_str_cat2(ret, "LINK"); + + endp = ((char *)addr) + socklen; + + if (offsetof(struct sockaddr_dl, sdl_data) < socklen) { + np = addr->sdl_data; + nlen = addr->sdl_nlen; + if (endp - np < nlen) + nlen = (int)(endp - np); + } + off = addr->sdl_nlen; + + if (offsetof(struct sockaddr_dl, sdl_data) + off < socklen) { + ap = addr->sdl_data + off; + alen = addr->sdl_alen; + if (endp - ap < alen) + alen = (int)(endp - ap); + } + + CATSEP; + if (np) + rb_str_catf(ret, "%.*s", nlen, np); + else + rb_str_cat2(ret, "?"); + + if (ap && 0 < alen) { + CATSEP; + for (i = 0; i < alen; i++) + rb_str_catf(ret, "%s%02x", i == 0 ? "" : ":", (unsigned char)ap[i]); + } + + if (socklen < (socklen_t)(offsetof(struct sockaddr_dl, sdl_nlen) + sizeof(addr->sdl_nlen)) || + socklen < (socklen_t)(offsetof(struct sockaddr_dl, sdl_alen) + sizeof(addr->sdl_alen)) || + socklen < (socklen_t)(offsetof(struct sockaddr_dl, sdl_slen) + sizeof(addr->sdl_slen)) || + /* longer length is possible behavior because struct sockaddr_dl has "minimum work area, can be larger" as the last field. + * cf. Net2:/usr/src/sys/net/if_dl.h. */ + socklen < (socklen_t)(offsetof(struct sockaddr_dl, sdl_data) + addr->sdl_nlen + addr->sdl_alen + addr->sdl_slen)) { + CATSEP; + rb_str_catf(ret, "(%d bytes for %d bytes sockaddr_dl)", + (int)socklen, (int)sizeof(struct sockaddr_dl)); + } + + rb_str_cat2(ret, "]"); +#undef CATSEP + break; + } +#endif + + default: + { + ID id = rsock_intern_family(sockaddr->addr.sa_family); + if (id == 0) + rb_str_catf(ret, "unknown address family %d", sockaddr->addr.sa_family); + else + rb_str_catf(ret, "%s address format unknown", rb_id2name(id)); + break; + } + } + } + + return ret; +} + +/* + * call-seq: + * addrinfo.inspect => string + * + * returns a string which shows addrinfo in human-readable form. + * + * Addrinfo.tcp("localhost", 80).inspect #=> "#<Addrinfo: 127.0.0.1:80 TCP (localhost)>" + * Addrinfo.unix("/tmp/sock").inspect #=> "#<Addrinfo: /tmp/sock SOCK_STREAM>" + * + */ +static VALUE +addrinfo_inspect(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int internet_p; + VALUE ret; + + ret = rb_sprintf("#<%s: ", rb_obj_classname(self)); + + inspect_sockaddr(self, ret); + + if (rai->pfamily && ai_get_afamily(rai) != rai->pfamily) { + ID id = rsock_intern_protocol_family(rai->pfamily); + if (id) + rb_str_catf(ret, " %s", rb_id2name(id)); + else + rb_str_catf(ret, " PF_\?\?\?(%d)", rai->pfamily); + } + + internet_p = rai->pfamily == PF_INET; +#ifdef INET6 + internet_p = internet_p || rai->pfamily == PF_INET6; +#endif + if (internet_p && rai->socktype == SOCK_STREAM && + (rai->protocol == 0 || rai->protocol == IPPROTO_TCP)) { + rb_str_cat2(ret, " TCP"); + } + else if (internet_p && rai->socktype == SOCK_DGRAM && + (rai->protocol == 0 || rai->protocol == IPPROTO_UDP)) { + rb_str_cat2(ret, " UDP"); + } + else { + if (rai->socktype) { + ID id = rsock_intern_socktype(rai->socktype); + if (id) + rb_str_catf(ret, " %s", rb_id2name(id)); + else + rb_str_catf(ret, " SOCK_\?\?\?(%d)", rai->socktype); + } + + if (rai->protocol) { + if (internet_p) { + ID id = rsock_intern_ipproto(rai->protocol); + if (id) + rb_str_catf(ret, " %s", rb_id2name(id)); + else + goto unknown_protocol; + } + else { + unknown_protocol: + rb_str_catf(ret, " UNKNOWN_PROTOCOL(%d)", rai->protocol); + } + } + } + + if (!NIL_P(rai->canonname)) { + VALUE name = rai->canonname; + rb_str_catf(ret, " %s", StringValueCStr(name)); + } + + if (!NIL_P(rai->inspectname)) { + VALUE name = rai->inspectname; + rb_str_catf(ret, " (%s)", StringValueCStr(name)); + } + + rb_str_buf_cat2(ret, ">"); + return ret; +} + +/* + * call-seq: + * addrinfo.inspect_sockaddr => string + * + * returns a string which shows the sockaddr in _addrinfo_ with human-readable form. + * + * Addrinfo.tcp("localhost", 80).inspect_sockaddr #=> "127.0.0.1:80" + * Addrinfo.tcp("ip6-localhost", 80).inspect_sockaddr #=> "[::1]:80" + * Addrinfo.unix("/tmp/sock").inspect_sockaddr #=> "/tmp/sock" + * + */ +VALUE +rsock_addrinfo_inspect_sockaddr(VALUE self) +{ + return inspect_sockaddr(self, rb_str_new("", 0)); +} + +/* :nodoc: */ +static VALUE +addrinfo_mdump(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + VALUE sockaddr, afamily, pfamily, socktype, protocol, canonname, inspectname; + int afamily_int = ai_get_afamily(rai); + ID id; + + id = rsock_intern_protocol_family(rai->pfamily); + if (id == 0) + rb_raise(rb_eSocket, "unknown protocol family: %d", rai->pfamily); + pfamily = rb_id2str(id); + + if (rai->socktype == 0) + socktype = INT2FIX(0); + else { + id = rsock_intern_socktype(rai->socktype); + if (id == 0) + rb_raise(rb_eSocket, "unknown socktype: %d", rai->socktype); + socktype = rb_id2str(id); + } + + if (rai->protocol == 0) + protocol = INT2FIX(0); + else if (IS_IP_FAMILY(afamily_int)) { + id = rsock_intern_ipproto(rai->protocol); + if (id == 0) + rb_raise(rb_eSocket, "unknown IP protocol: %d", rai->protocol); + protocol = rb_id2str(id); + } + else { + rb_raise(rb_eSocket, "unknown protocol: %d", rai->protocol); + } + + canonname = rai->canonname; + + inspectname = rai->inspectname; + + id = rsock_intern_family(afamily_int); + if (id == 0) + rb_raise(rb_eSocket, "unknown address family: %d", afamily_int); + afamily = rb_id2str(id); + + switch(afamily_int) { +#ifdef HAVE_SYS_UN_H + case AF_UNIX: + { + struct sockaddr_un *su = &rai->addr.un; + char *s, *e; + s = su->sun_path; + e = (char*)su + rai->sockaddr_len; + while (s < e && *(e-1) == '\0') + e--; + sockaddr = rb_str_new(s, e-s); + break; + } +#endif + + default: + { + char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; + int error; + error = getnameinfo(&rai->addr.addr, rai->sockaddr_len, + hbuf, (socklen_t)sizeof(hbuf), pbuf, (socklen_t)sizeof(pbuf), + NI_NUMERICHOST|NI_NUMERICSERV); + if (error) { + rsock_raise_socket_error("getnameinfo", error); + } + sockaddr = rb_assoc_new(rb_str_new_cstr(hbuf), rb_str_new_cstr(pbuf)); + break; + } + } + + return rb_ary_new3(7, afamily, sockaddr, pfamily, socktype, protocol, canonname, inspectname); +} + +/* :nodoc: */ +static VALUE +addrinfo_mload(VALUE self, VALUE ary) +{ + VALUE v; + VALUE canonname, inspectname; + int afamily, pfamily, socktype, protocol; + union_sockaddr ss; + socklen_t len; + rb_addrinfo_t *rai; + + if (check_addrinfo(self)) + rb_raise(rb_eTypeError, "already initialized socket address"); + + ary = rb_convert_type(ary, T_ARRAY, "Array", "to_ary"); + + v = rb_ary_entry(ary, 0); + StringValue(v); + if (rsock_family_to_int(RSTRING_PTR(v), RSTRING_LEN(v), &afamily) == -1) + rb_raise(rb_eTypeError, "unexpected address family"); + + v = rb_ary_entry(ary, 2); + StringValue(v); + if (rsock_family_to_int(RSTRING_PTR(v), RSTRING_LEN(v), &pfamily) == -1) + rb_raise(rb_eTypeError, "unexpected protocol family"); + + v = rb_ary_entry(ary, 3); + if (v == INT2FIX(0)) + socktype = 0; + else { + StringValue(v); + if (rsock_socktype_to_int(RSTRING_PTR(v), RSTRING_LEN(v), &socktype) == -1) + rb_raise(rb_eTypeError, "unexpected socktype"); + } + + v = rb_ary_entry(ary, 4); + if (v == INT2FIX(0)) + protocol = 0; + else { + StringValue(v); + if (IS_IP_FAMILY(afamily)) { + if (rsock_ipproto_to_int(RSTRING_PTR(v), RSTRING_LEN(v), &protocol) == -1) + rb_raise(rb_eTypeError, "unexpected protocol"); + } + else { + rb_raise(rb_eTypeError, "unexpected protocol"); + } + } + + v = rb_ary_entry(ary, 5); + if (NIL_P(v)) + canonname = Qnil; + else { + StringValue(v); + canonname = v; + } + + v = rb_ary_entry(ary, 6); + if (NIL_P(v)) + inspectname = Qnil; + else { + StringValue(v); + inspectname = v; + } + + v = rb_ary_entry(ary, 1); + switch(afamily) { +#ifdef HAVE_SYS_UN_H + case AF_UNIX: + { + struct sockaddr_un uaddr; + INIT_SOCKADDR_UN(&uaddr, sizeof(struct sockaddr_un)); + + StringValue(v); + if (sizeof(uaddr.sun_path) < (size_t)RSTRING_LEN(v)) + rb_raise(rb_eSocket, + "too long AF_UNIX path (%"PRIuSIZE" bytes given but %"PRIuSIZE" bytes max)", + (size_t)RSTRING_LEN(v), sizeof(uaddr.sun_path)); + memcpy(uaddr.sun_path, RSTRING_PTR(v), RSTRING_LEN(v)); + len = (socklen_t)sizeof(uaddr); + memcpy(&ss, &uaddr, len); + break; + } +#endif + + default: + { + VALUE pair = rb_convert_type(v, T_ARRAY, "Array", "to_ary"); + struct rb_addrinfo *res; + int flags = AI_NUMERICHOST; +#ifdef AI_NUMERICSERV + flags |= AI_NUMERICSERV; +#endif + res = call_getaddrinfo(rb_ary_entry(pair, 0), rb_ary_entry(pair, 1), + INT2NUM(pfamily), INT2NUM(socktype), INT2NUM(protocol), + INT2NUM(flags), 1); + + len = res->ai->ai_addrlen; + memcpy(&ss, res->ai->ai_addr, res->ai->ai_addrlen); + rb_freeaddrinfo(res); + break; + } + } + + DATA_PTR(self) = rai = alloc_addrinfo(); + init_addrinfo(rai, &ss.addr, len, + pfamily, socktype, protocol, + canonname, inspectname); + return self; +} + +/* + * call-seq: + * addrinfo.afamily => integer + * + * returns the address family as an integer. + * + * Addrinfo.tcp("localhost", 80).afamily == Socket::AF_INET #=> true + * + */ +static VALUE +addrinfo_afamily(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return INT2NUM(ai_get_afamily(rai)); +} + +/* + * call-seq: + * addrinfo.pfamily => integer + * + * returns the protocol family as an integer. + * + * Addrinfo.tcp("localhost", 80).pfamily == Socket::PF_INET #=> true + * + */ +static VALUE +addrinfo_pfamily(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return INT2NUM(rai->pfamily); +} + +/* + * call-seq: + * addrinfo.socktype => integer + * + * returns the socket type as an integer. + * + * Addrinfo.tcp("localhost", 80).socktype == Socket::SOCK_STREAM #=> true + * + */ +static VALUE +addrinfo_socktype(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return INT2NUM(rai->socktype); +} + +/* + * call-seq: + * addrinfo.protocol => integer + * + * returns the socket type as an integer. + * + * Addrinfo.tcp("localhost", 80).protocol == Socket::IPPROTO_TCP #=> true + * + */ +static VALUE +addrinfo_protocol(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return INT2NUM(rai->protocol); +} + +/* + * call-seq: + * addrinfo.to_sockaddr => string + * addrinfo.to_s => string + * + * returns the socket address as packed struct sockaddr string. + * + * Addrinfo.tcp("localhost", 80).to_sockaddr + * #=> "\x02\x00\x00P\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00" + * + */ +static VALUE +addrinfo_to_sockaddr(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + VALUE ret; + ret = rb_str_new((char*)&rai->addr, rai->sockaddr_len); + OBJ_INFECT(ret, self); + return ret; +} + +/* + * call-seq: + * addrinfo.canonname => string or nil + * + * returns the canonical name as an string. + * + * nil is returned if no canonical name. + * + * The canonical name is set by Addrinfo.getaddrinfo when AI_CANONNAME is specified. + * + * list = Addrinfo.getaddrinfo("www.ruby-lang.org", 80, :INET, :STREAM, nil, Socket::AI_CANONNAME) + * p list[0] #=> #<Addrinfo: 221.186.184.68:80 TCP carbon.ruby-lang.org (www.ruby-lang.org)> + * p list[0].canonname #=> "carbon.ruby-lang.org" + * + */ +static VALUE +addrinfo_canonname(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return rai->canonname; +} + +/* + * call-seq: + * addrinfo.ip? => true or false + * + * returns true if addrinfo is internet (IPv4/IPv6) address. + * returns false otherwise. + * + * Addrinfo.tcp("127.0.0.1", 80).ip? #=> true + * Addrinfo.tcp("::1", 80).ip? #=> true + * Addrinfo.unix("/tmp/sock").ip? #=> false + * + */ +static VALUE +addrinfo_ip_p(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + return IS_IP_FAMILY(family) ? Qtrue : Qfalse; +} + +/* + * call-seq: + * addrinfo.ipv4? => true or false + * + * returns true if addrinfo is IPv4 address. + * returns false otherwise. + * + * Addrinfo.tcp("127.0.0.1", 80).ipv4? #=> true + * Addrinfo.tcp("::1", 80).ipv4? #=> false + * Addrinfo.unix("/tmp/sock").ipv4? #=> false + * + */ +static VALUE +addrinfo_ipv4_p(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + return ai_get_afamily(rai) == AF_INET ? Qtrue : Qfalse; +} + +/* + * call-seq: + * addrinfo.ipv6? => true or false + * + * returns true if addrinfo is IPv6 address. + * returns false otherwise. + * + * Addrinfo.tcp("127.0.0.1", 80).ipv6? #=> false + * Addrinfo.tcp("::1", 80).ipv6? #=> true + * Addrinfo.unix("/tmp/sock").ipv6? #=> false + * + */ +static VALUE +addrinfo_ipv6_p(VALUE self) +{ +#ifdef AF_INET6 + rb_addrinfo_t *rai = get_addrinfo(self); + return ai_get_afamily(rai) == AF_INET6 ? Qtrue : Qfalse; +#else + return Qfalse; +#endif +} + +/* + * call-seq: + * addrinfo.unix? => true or false + * + * returns true if addrinfo is UNIX address. + * returns false otherwise. + * + * Addrinfo.tcp("127.0.0.1", 80).unix? #=> false + * Addrinfo.tcp("::1", 80).unix? #=> false + * Addrinfo.unix("/tmp/sock").unix? #=> true + * + */ +static VALUE +addrinfo_unix_p(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); +#ifdef AF_UNIX + return ai_get_afamily(rai) == AF_UNIX ? Qtrue : Qfalse; +#else + return Qfalse; +#endif +} + +/* + * call-seq: + * addrinfo.getnameinfo => [nodename, service] + * addrinfo.getnameinfo(flags) => [nodename, service] + * + * returns nodename and service as a pair of strings. + * This converts struct sockaddr in addrinfo to textual representation. + * + * flags should be bitwise OR of Socket::NI_??? constants. + * + * Addrinfo.tcp("127.0.0.1", 80).getnameinfo #=> ["localhost", "www"] + * + * Addrinfo.tcp("127.0.0.1", 80).getnameinfo(Socket::NI_NUMERICSERV) + * #=> ["localhost", "80"] + */ +static VALUE +addrinfo_getnameinfo(int argc, VALUE *argv, VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + VALUE vflags; + char hbuf[1024], pbuf[1024]; + int flags, error; + + rb_scan_args(argc, argv, "01", &vflags); + + flags = NIL_P(vflags) ? 0 : NUM2INT(vflags); + + if (rai->socktype == SOCK_DGRAM) + flags |= NI_DGRAM; + + error = getnameinfo(&rai->addr.addr, rai->sockaddr_len, + hbuf, (socklen_t)sizeof(hbuf), pbuf, (socklen_t)sizeof(pbuf), + flags); + if (error) { + rsock_raise_socket_error("getnameinfo", error); + } + + return rb_assoc_new(rb_str_new2(hbuf), rb_str_new2(pbuf)); +} + +/* + * call-seq: + * addrinfo.ip_unpack => [addr, port] + * + * Returns the IP address and port number as 2-element array. + * + * Addrinfo.tcp("127.0.0.1", 80).ip_unpack #=> ["127.0.0.1", 80] + * Addrinfo.tcp("::1", 80).ip_unpack #=> ["::1", 80] + */ +static VALUE +addrinfo_ip_unpack(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + VALUE vflags; + VALUE ret, portstr; + + if (!IS_IP_FAMILY(family)) + rb_raise(rb_eSocket, "need IPv4 or IPv6 address"); + + vflags = INT2NUM(NI_NUMERICHOST|NI_NUMERICSERV); + ret = addrinfo_getnameinfo(1, &vflags, self); + portstr = rb_ary_entry(ret, 1); + rb_ary_store(ret, 1, INT2NUM(atoi(StringValueCStr(portstr)))); + return ret; +} + +/* + * call-seq: + * addrinfo.ip_address => string + * + * Returns the IP address as a string. + * + * Addrinfo.tcp("127.0.0.1", 80).ip_address #=> "127.0.0.1" + * Addrinfo.tcp("::1", 80).ip_address #=> "::1" + */ +static VALUE +addrinfo_ip_address(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + VALUE vflags; + VALUE ret; + + if (!IS_IP_FAMILY(family)) + rb_raise(rb_eSocket, "need IPv4 or IPv6 address"); + + vflags = INT2NUM(NI_NUMERICHOST|NI_NUMERICSERV); + ret = addrinfo_getnameinfo(1, &vflags, self); + return rb_ary_entry(ret, 0); +} + +/* + * call-seq: + * addrinfo.ip_port => port + * + * Returns the port number as an integer. + * + * Addrinfo.tcp("127.0.0.1", 80).ip_port #=> 80 + * Addrinfo.tcp("::1", 80).ip_port #=> 80 + */ +static VALUE +addrinfo_ip_port(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + int port; + + if (!IS_IP_FAMILY(family)) { + bad_family: +#ifdef AF_INET6 + rb_raise(rb_eSocket, "need IPv4 or IPv6 address"); +#else + rb_raise(rb_eSocket, "need IPv4 address"); +#endif + } + + switch (family) { + case AF_INET: + if (rai->sockaddr_len != sizeof(struct sockaddr_in)) + rb_raise(rb_eSocket, "unexpected sockaddr size for IPv4"); + port = ntohs(rai->addr.in.sin_port); + break; + +#ifdef AF_INET6 + case AF_INET6: + if (rai->sockaddr_len != sizeof(struct sockaddr_in6)) + rb_raise(rb_eSocket, "unexpected sockaddr size for IPv6"); + port = ntohs(rai->addr.in6.sin6_port); + break; +#endif + + default: + goto bad_family; + } + + return INT2NUM(port); +} + +static int +extract_in_addr(VALUE self, uint32_t *addrp) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + if (family != AF_INET) return 0; + *addrp = ntohl(rai->addr.in.sin_addr.s_addr); + return 1; +} + +/* + * Returns true for IPv4 private address (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv4_private_p(VALUE self) +{ + uint32_t a; + if (!extract_in_addr(self, &a)) return Qfalse; + if ((a & 0xff000000) == 0x0a000000 || /* 10.0.0.0/8 */ + (a & 0xfff00000) == 0xac100000 || /* 172.16.0.0/12 */ + (a & 0xffff0000) == 0xc0a80000) /* 192.168.0.0/16 */ + return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv4 loopback address (127.0.0.0/8). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv4_loopback_p(VALUE self) +{ + uint32_t a; + if (!extract_in_addr(self, &a)) return Qfalse; + if ((a & 0xff000000) == 0x7f000000) /* 127.0.0.0/8 */ + return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv4 multicast address (224.0.0.0/4). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv4_multicast_p(VALUE self) +{ + uint32_t a; + if (!extract_in_addr(self, &a)) return Qfalse; + if ((a & 0xf0000000) == 0xe0000000) /* 224.0.0.0/4 */ + return Qtrue; + return Qfalse; +} + +#ifdef INET6 + +static struct in6_addr * +extract_in6_addr(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + if (family != AF_INET6) return NULL; + return &rai->addr.in6.sin6_addr; +} + +/* + * Returns true for IPv6 unspecified address (::). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_unspecified_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_UNSPECIFIED(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 loopback address (::1). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_loopback_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_LOOPBACK(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast address (ff00::/8). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_multicast_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MULTICAST(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 link local address (ff80::/10). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_linklocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_LINKLOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 site local address (ffc0::/10). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_sitelocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_SITELOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 unique local address (fc00::/7, RFC4193). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_unique_local_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_UNIQUE_LOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv4-mapped IPv6 address (::ffff:0:0/80). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_v4mapped_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_V4MAPPED(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv4-compatible IPv6 address (::/80). + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_v4compat_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_V4COMPAT(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast node-local scope address. + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_mc_nodelocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MC_NODELOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast link-local scope address. + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_mc_linklocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MC_LINKLOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast site-local scope address. + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_mc_sitelocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MC_SITELOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast organization-local scope address. + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_mc_orglocal_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MC_ORGLOCAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns true for IPv6 multicast global scope address. + * It returns false otherwise. + */ +static VALUE +addrinfo_ipv6_mc_global_p(VALUE self) +{ + struct in6_addr *addr = extract_in6_addr(self); + if (addr && IN6_IS_ADDR_MC_GLOBAL(addr)) return Qtrue; + return Qfalse; +} + +/* + * Returns IPv4 address of IPv4 mapped/compatible IPv6 address. + * It returns nil if +self+ is not IPv4 mapped/compatible IPv6 address. + * + * Addrinfo.ip("::192.0.2.3").ipv6_to_ipv4 #=> #<Addrinfo: 192.0.2.3> + * Addrinfo.ip("::ffff:192.0.2.3").ipv6_to_ipv4 #=> #<Addrinfo: 192.0.2.3> + * Addrinfo.ip("::1").ipv6_to_ipv4 #=> nil + * Addrinfo.ip("192.0.2.3").ipv6_to_ipv4 #=> nil + * Addrinfo.unix("/tmp/sock").ipv6_to_ipv4 #=> nil + */ +static VALUE +addrinfo_ipv6_to_ipv4(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + struct in6_addr *addr; + int family = ai_get_afamily(rai); + if (family != AF_INET6) return Qnil; + addr = &rai->addr.in6.sin6_addr; + if (IN6_IS_ADDR_V4MAPPED(addr) || IN6_IS_ADDR_V4COMPAT(addr)) { + struct sockaddr_in sin4; + INIT_SOCKADDR_IN(&sin4, sizeof(sin4)); + memcpy(&sin4.sin_addr, (char*)addr + sizeof(*addr) - sizeof(sin4.sin_addr), sizeof(sin4.sin_addr)); + return rsock_addrinfo_new((struct sockaddr *)&sin4, (socklen_t)sizeof(sin4), + PF_INET, rai->socktype, rai->protocol, + rai->canonname, rai->inspectname); + } + else { + return Qnil; + } +} + +#endif + +#ifdef HAVE_SYS_UN_H +/* + * call-seq: + * addrinfo.unix_path => path + * + * Returns the socket path as a string. + * + * Addrinfo.unix("/tmp/sock").unix_path #=> "/tmp/sock" + */ +static VALUE +addrinfo_unix_path(VALUE self) +{ + rb_addrinfo_t *rai = get_addrinfo(self); + int family = ai_get_afamily(rai); + struct sockaddr_un *addr; + char *s, *e; + + if (family != AF_UNIX) + rb_raise(rb_eSocket, "need AF_UNIX address"); + + addr = &rai->addr.un; + + s = addr->sun_path; + e = (char*)addr + rai->sockaddr_len; + if (e < s) + rb_raise(rb_eSocket, "too short AF_UNIX address: %"PRIuSIZE" bytes given for minimum %"PRIuSIZE" bytes.", + (size_t)rai->sockaddr_len, (size_t)(s - (char *)addr)); + if (addr->sun_path + sizeof(addr->sun_path) < e) + rb_raise(rb_eSocket, + "too long AF_UNIX path (%"PRIuSIZE" bytes given but %"PRIuSIZE" bytes max)", + (size_t)(e - addr->sun_path), sizeof(addr->sun_path)); + while (s < e && *(e-1) == '\0') + e--; + return rb_str_new(s, e-s); +} +#endif + +/* + * call-seq: + * Addrinfo.getaddrinfo(nodename, service, family, socktype, protocol, flags) => [addrinfo, ...] + * Addrinfo.getaddrinfo(nodename, service, family, socktype, protocol) => [addrinfo, ...] + * Addrinfo.getaddrinfo(nodename, service, family, socktype) => [addrinfo, ...] + * Addrinfo.getaddrinfo(nodename, service, family) => [addrinfo, ...] + * Addrinfo.getaddrinfo(nodename, service) => [addrinfo, ...] + * + * returns a list of addrinfo objects as an array. + * + * This method converts nodename (hostname) and service (port) to addrinfo. + * Since the conversion is not unique, the result is a list of addrinfo objects. + * + * nodename or service can be nil if no conversion intended. + * + * family, socktype and protocol are hint for preferred protocol. + * If the result will be used for a socket with SOCK_STREAM, + * SOCK_STREAM should be specified as socktype. + * If so, Addrinfo.getaddrinfo returns addrinfo list appropriate for SOCK_STREAM. + * If they are omitted or nil is given, the result is not restricted. + * + * Similarly, PF_INET6 as family restricts for IPv6. + * + * flags should be bitwise OR of Socket::AI_??? constants such as follows. + * Note that the exact list of the constants depends on OS. + * + * AI_PASSIVE Get address to use with bind() + * AI_CANONNAME Fill in the canonical name + * AI_NUMERICHOST Prevent host name resolution + * AI_NUMERICSERV Prevent service name resolution + * AI_V4MAPPED Accept IPv4-mapped IPv6 addresses + * AI_ALL Allow all addresses + * AI_ADDRCONFIG Accept only if any address is assigned + * + * Note that socktype should be specified whenever application knows the usage of the address. + * Some platform causes an error when socktype is omitted and servname is specified as an integer + * because some port numbers, 512 for example, are ambiguous without socktype. + * + * Addrinfo.getaddrinfo("www.kame.net", 80, nil, :STREAM) + * #=> [#<Addrinfo: 203.178.141.194:80 TCP (www.kame.net)>, + * # #<Addrinfo: [2001:200:dff:fff1:216:3eff:feb1:44d7]:80 TCP (www.kame.net)>] + * + */ +static VALUE +addrinfo_s_getaddrinfo(int argc, VALUE *argv, VALUE self) +{ + VALUE node, service, family, socktype, protocol, flags; + + rb_scan_args(argc, argv, "24", &node, &service, &family, &socktype, &protocol, &flags); + return addrinfo_list_new(node, service, family, socktype, protocol, flags); +} + +/* + * call-seq: + * Addrinfo.ip(host) => addrinfo + * + * returns an addrinfo object for IP address. + * + * The port, socktype, protocol of the result is filled by zero. + * So, it is not appropriate to create a socket. + * + * Addrinfo.ip("localhost") #=> #<Addrinfo: 127.0.0.1 (localhost)> + */ +static VALUE +addrinfo_s_ip(VALUE self, VALUE host) +{ + VALUE ret; + rb_addrinfo_t *rai; + ret = addrinfo_firstonly_new(host, Qnil, + INT2NUM(PF_UNSPEC), INT2FIX(0), INT2FIX(0), INT2FIX(0)); + rai = get_addrinfo(ret); + rai->socktype = 0; + rai->protocol = 0; + return ret; +} + +/* + * call-seq: + * Addrinfo.tcp(host, port) => addrinfo + * + * returns an addrinfo object for TCP address. + * + * Addrinfo.tcp("localhost", "smtp") #=> #<Addrinfo: 127.0.0.1:25 TCP (localhost:smtp)> + */ +static VALUE +addrinfo_s_tcp(VALUE self, VALUE host, VALUE port) +{ + return addrinfo_firstonly_new(host, port, + INT2NUM(PF_UNSPEC), INT2NUM(SOCK_STREAM), INT2NUM(IPPROTO_TCP), INT2FIX(0)); +} + +/* + * call-seq: + * Addrinfo.udp(host, port) => addrinfo + * + * returns an addrinfo object for UDP address. + * + * Addrinfo.udp("localhost", "daytime") #=> #<Addrinfo: 127.0.0.1:13 UDP (localhost:daytime)> + */ +static VALUE +addrinfo_s_udp(VALUE self, VALUE host, VALUE port) +{ + return addrinfo_firstonly_new(host, port, + INT2NUM(PF_UNSPEC), INT2NUM(SOCK_DGRAM), INT2NUM(IPPROTO_UDP), INT2FIX(0)); +} + +#ifdef HAVE_SYS_UN_H + +/* + * call-seq: + * Addrinfo.unix(path [, socktype]) => addrinfo + * + * returns an addrinfo object for UNIX socket address. + * + * _socktype_ specifies the socket type. + * If it is omitted, :STREAM is used. + * + * Addrinfo.unix("/tmp/sock") #=> #<Addrinfo: /tmp/sock SOCK_STREAM> + * Addrinfo.unix("/tmp/sock", :DGRAM) #=> #<Addrinfo: /tmp/sock SOCK_DGRAM> + */ +static VALUE +addrinfo_s_unix(int argc, VALUE *argv, VALUE self) +{ + VALUE path, vsocktype, addr; + int socktype; + rb_addrinfo_t *rai; + + rb_scan_args(argc, argv, "11", &path, &vsocktype); + + if (NIL_P(vsocktype)) + socktype = SOCK_STREAM; + else + socktype = rsock_socktype_arg(vsocktype); + + addr = addrinfo_s_allocate(rb_cAddrinfo); + DATA_PTR(addr) = rai = alloc_addrinfo(); + init_unix_addrinfo(rai, path, socktype); + OBJ_INFECT(addr, path); + return addr; +} + +#endif + +VALUE +rsock_sockaddr_string_value(volatile VALUE *v) +{ + VALUE val = *v; + if (IS_ADDRINFO(val)) { + *v = addrinfo_to_sockaddr(val); + } + StringValue(*v); + return *v; +} + +VALUE +rsock_sockaddr_string_value_with_addrinfo(volatile VALUE *v, VALUE *rai_ret) +{ + VALUE val = *v; + *rai_ret = Qnil; + if (IS_ADDRINFO(val)) { + *v = addrinfo_to_sockaddr(val); + *rai_ret = val; + } + StringValue(*v); + return *v; +} + +char * +rsock_sockaddr_string_value_ptr(volatile VALUE *v) +{ + rsock_sockaddr_string_value(v); + return RSTRING_PTR(*v); +} + +VALUE +rb_check_sockaddr_string_type(VALUE val) +{ + if (IS_ADDRINFO(val)) + return addrinfo_to_sockaddr(val); + return rb_check_string_type(val); +} + +VALUE +rsock_fd_socket_addrinfo(int fd, struct sockaddr *addr, socklen_t len) +{ + int family; + int socktype; + int ret; + socklen_t optlen = (socklen_t)sizeof(socktype); + + /* assumes protocol family and address family are identical */ + family = get_afamily(addr, len); + + ret = getsockopt(fd, SOL_SOCKET, SO_TYPE, (void*)&socktype, &optlen); + if (ret == -1) { + rb_sys_fail("getsockopt(SO_TYPE)"); + } + + return rsock_addrinfo_new(addr, len, family, socktype, 0, Qnil, Qnil); +} + +VALUE +rsock_io_socket_addrinfo(VALUE io, struct sockaddr *addr, socklen_t len) +{ + rb_io_t *fptr; + + switch (TYPE(io)) { + case T_FIXNUM: + return rsock_fd_socket_addrinfo(FIX2INT(io), addr, len); + + case T_BIGNUM: + return rsock_fd_socket_addrinfo(NUM2INT(io), addr, len); + + case T_FILE: + GetOpenFile(io, fptr); + return rsock_fd_socket_addrinfo(fptr->fd, addr, len); + + default: + rb_raise(rb_eTypeError, "neither IO nor file descriptor"); + } + + UNREACHABLE; +} + +/* + * Addrinfo class + */ +void +rsock_init_addrinfo(void) +{ + /* + * The Addrinfo class maps <tt>struct addrinfo</tt> to ruby. This + * structure identifies an Internet host and a service. + */ + rb_cAddrinfo = rb_define_class("Addrinfo", rb_cData); + rb_define_alloc_func(rb_cAddrinfo, addrinfo_s_allocate); + rb_define_method(rb_cAddrinfo, "initialize", addrinfo_initialize, -1); + rb_define_method(rb_cAddrinfo, "inspect", addrinfo_inspect, 0); + rb_define_method(rb_cAddrinfo, "inspect_sockaddr", rsock_addrinfo_inspect_sockaddr, 0); + rb_define_singleton_method(rb_cAddrinfo, "getaddrinfo", addrinfo_s_getaddrinfo, -1); + rb_define_singleton_method(rb_cAddrinfo, "ip", addrinfo_s_ip, 1); + rb_define_singleton_method(rb_cAddrinfo, "tcp", addrinfo_s_tcp, 2); + rb_define_singleton_method(rb_cAddrinfo, "udp", addrinfo_s_udp, 2); +#ifdef HAVE_SYS_UN_H + rb_define_singleton_method(rb_cAddrinfo, "unix", addrinfo_s_unix, -1); +#endif + + rb_define_method(rb_cAddrinfo, "afamily", addrinfo_afamily, 0); + rb_define_method(rb_cAddrinfo, "pfamily", addrinfo_pfamily, 0); + rb_define_method(rb_cAddrinfo, "socktype", addrinfo_socktype, 0); + rb_define_method(rb_cAddrinfo, "protocol", addrinfo_protocol, 0); + rb_define_method(rb_cAddrinfo, "canonname", addrinfo_canonname, 0); + + rb_define_method(rb_cAddrinfo, "ipv4?", addrinfo_ipv4_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6?", addrinfo_ipv6_p, 0); + rb_define_method(rb_cAddrinfo, "unix?", addrinfo_unix_p, 0); + + rb_define_method(rb_cAddrinfo, "ip?", addrinfo_ip_p, 0); + rb_define_method(rb_cAddrinfo, "ip_unpack", addrinfo_ip_unpack, 0); + rb_define_method(rb_cAddrinfo, "ip_address", addrinfo_ip_address, 0); + rb_define_method(rb_cAddrinfo, "ip_port", addrinfo_ip_port, 0); + + rb_define_method(rb_cAddrinfo, "ipv4_private?", addrinfo_ipv4_private_p, 0); + rb_define_method(rb_cAddrinfo, "ipv4_loopback?", addrinfo_ipv4_loopback_p, 0); + rb_define_method(rb_cAddrinfo, "ipv4_multicast?", addrinfo_ipv4_multicast_p, 0); + +#ifdef INET6 + rb_define_method(rb_cAddrinfo, "ipv6_unspecified?", addrinfo_ipv6_unspecified_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_loopback?", addrinfo_ipv6_loopback_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_multicast?", addrinfo_ipv6_multicast_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_linklocal?", addrinfo_ipv6_linklocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_sitelocal?", addrinfo_ipv6_sitelocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_unique_local?", addrinfo_ipv6_unique_local_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_v4mapped?", addrinfo_ipv6_v4mapped_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_v4compat?", addrinfo_ipv6_v4compat_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_mc_nodelocal?", addrinfo_ipv6_mc_nodelocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_mc_linklocal?", addrinfo_ipv6_mc_linklocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_mc_sitelocal?", addrinfo_ipv6_mc_sitelocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_mc_orglocal?", addrinfo_ipv6_mc_orglocal_p, 0); + rb_define_method(rb_cAddrinfo, "ipv6_mc_global?", addrinfo_ipv6_mc_global_p, 0); + + rb_define_method(rb_cAddrinfo, "ipv6_to_ipv4", addrinfo_ipv6_to_ipv4, 0); +#endif + +#ifdef HAVE_SYS_UN_H + rb_define_method(rb_cAddrinfo, "unix_path", addrinfo_unix_path, 0); +#endif + + rb_define_method(rb_cAddrinfo, "to_sockaddr", addrinfo_to_sockaddr, 0); + rb_define_method(rb_cAddrinfo, "to_s", addrinfo_to_sockaddr, 0); /* compatibility for ruby before 1.9.2 */ + + rb_define_method(rb_cAddrinfo, "getnameinfo", addrinfo_getnameinfo, -1); + + rb_define_method(rb_cAddrinfo, "marshal_dump", addrinfo_mdump, 0); + rb_define_method(rb_cAddrinfo, "marshal_load", addrinfo_mload, 1); +} |