diff options
Diffstat (limited to 'ext/win32')
-rw-r--r-- | ext/win32/lib/win32/resolv.rb | 28 | ||||
-rw-r--r-- | ext/win32/resolv/extconf.rb | 1 | ||||
-rw-r--r-- | ext/win32/resolv/resolv.c | 72 |
3 files changed, 88 insertions, 13 deletions
diff --git a/ext/win32/lib/win32/resolv.rb b/ext/win32/lib/win32/resolv.rb index 95054575b7..6990941845 100644 --- a/ext/win32/lib/win32/resolv.rb +++ b/ext/win32/lib/win32/resolv.rb @@ -34,6 +34,12 @@ module Win32 [ search, nameserver ] end end +end + +begin + require 'win32/resolv.so' +rescue LoadError +end nt = Module.new do break true if [nil].pack("p").size > 4 @@ -48,6 +54,7 @@ if not nt require_relative 'resolv9x' # return # does not work yet else +module Win32 #==================================================================== # Windows NT #==================================================================== @@ -64,7 +71,7 @@ else def get_info search = nil - nameserver = [] + nameserver = get_dns_server_list Registry::HKEY_LOCAL_MACHINE.open(TCPIP_NT) do |reg| begin slist = reg.read_s('SearchList') @@ -91,20 +98,15 @@ else reg.open('Interfaces') do |h| h.each_key do |iface, | h.open(iface) do |regif| - begin - [ 'NameServer', 'DhcpNameServer' ].each do |key| - begin - ns = regif.read_s(key) - rescue - else - unless ns.empty? - nameserver.concat(ns.split(/[,\s]\s*/)) - break - end - end + next unless ns = %w[NameServer DhcpNameServer].find do |key| + begin + ns = regif.read_s(key) + rescue Registry::Error + else + break ns.split(/[,\s]\s*/) unless ns.empty? end - rescue Registry::Error end + next if (nameserver & ns).empty? if add_search begin diff --git a/ext/win32/resolv/extconf.rb b/ext/win32/resolv/extconf.rb new file mode 100644 index 0000000000..2ae4bb29f7 --- /dev/null +++ b/ext/win32/resolv/extconf.rb @@ -0,0 +1 @@ +create_makefile('win32/resolv') diff --git a/ext/win32/resolv/resolv.c b/ext/win32/resolv/resolv.c new file mode 100644 index 0000000000..03252f5ffc --- /dev/null +++ b/ext/win32/resolv/resolv.c @@ -0,0 +1,72 @@ +#include <ruby.h> +#include <ruby/encoding.h> +#include <iphlpapi.h> + +static VALUE +w32error_init(VALUE self, VALUE code) +{ + VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code))); + rb_ivar_set(self, rb_intern("@code"), code); + return rb_call_super(1, &str); +} + +static VALUE +w32error_make_error(DWORD e) +{ + VALUE code = ULONG2NUM(e); + return rb_class_new_instance(1, &code, rb_path2class("Win32::Error")); +} + +static void +w32error_raise(DWORD e) +{ + rb_exc_raise(w32error_make_error(e)); +} + +static VALUE +get_dns_server_list(VALUE self) +{ + FIXED_INFO *fixedinfo = NULL; + ULONG buflen = 0; + DWORD ret; + VALUE buf, nameservers = Qnil; + + ret = GetNetworkParams(NULL, &buflen); + if (ret != NO_ERROR && ret != ERROR_BUFFER_OVERFLOW) { + w32error_raise(ret); + } + fixedinfo = ALLOCV(buf, buflen); + ret = GetNetworkParams(fixedinfo, &buflen); + if (ret == NO_ERROR) { + const IP_ADDR_STRING *ipaddr = &fixedinfo->DnsServerList; + nameservers = rb_ary_new(); + do { + const char *s = ipaddr->IpAddress.String; + if (!*s) continue; + if (strcmp(s, "0.0.0.0") == 0) continue; + rb_ary_push(nameservers, rb_str_new_cstr(s)); + } while ((ipaddr = ipaddr->Next) != NULL); + } + ALLOCV_END(buf); + if (ret != NO_ERROR) w32error_raise(ret); + + return nameservers; +} + +void +InitVM_resolv(void) +{ + VALUE mWin32 = rb_define_module("Win32"); + VALUE resolv = rb_define_module_under(mWin32, "Resolv"); + VALUE singl = rb_singleton_class(resolv); + VALUE eclass = rb_define_class_under(mWin32, "Error", rb_eStandardError); + rb_define_method(eclass, "initialize", w32error_init, 1); + rb_define_private_method(singl, "get_dns_server_list", get_dns_server_list, 0); +} + +void +Init_resolv(void) +{ + message_free = (rb_w32_osver() >= 10) ? heap_free : local_free; + InitVM(resolv); +} |