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r6952@Kushana: nickm | 2006-07-28 11:09:37 -0400
Add completely untested find-my-nameservers code for win32. svn:r6952
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@ -1237,29 +1237,6 @@ eventdns_nameserver_ip_add(const char *ip_as_string) {
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return eventdns_nameserver_add(ina.s_addr);
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}
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/* Add multiple nameservers from a space-or-comma-separated list. */
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static int
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eventdns_nameserver_ip_add_line(const char *ips) {
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const char *addr;
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char *buf;
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int r;
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while (*ips) {
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while (ISSPACE(*ips) || *ips == ',' || *ips == '\t')
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++ips;
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addr = ips;
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while (ISDIGIT(*ips) || *ips == '.')
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++ips;
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buf = malloc(ips-addr+1);
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if (!buf) return 4;
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memcpy(buf, addr, ips-addr);
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buf[ips-addr] = '\0';
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r = eventdns_nameserver_ip_add(buf);
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free(buf);
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if (r) return r;
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}
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return 0;
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}
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// insert into the tail of the queue
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static void
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eventdns_request_insert(struct request *req, struct request **head) {
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@ -1744,9 +1721,35 @@ out1:
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}
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#ifdef MS_WINDOWS
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// Add multiple nameservers from a space-or-comma-separated list.
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static int
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eventdns_nameserver_ip_add_line(const char *ips) {
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const char *addr;
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char *buf;
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int r;
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while (*ips) {
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while (ISSPACE(*ips) || *ips == ',' || *ips == '\t')
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++ips;
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addr = ips;
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while (ISDIGIT(*ips) || *ips == '.')
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++ips;
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buf = malloc(ips-addr+1);
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if (!buf) return 4;
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memcpy(buf, addr, ips-addr);
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buf[ips-addr] = '\0';
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r = eventdns_nameserver_ip_add(buf);
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free(buf);
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if (r) return r;
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}
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return 0;
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}
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// Use the windows GetNetworkParams interface in iphlpapi.dll to
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// figure out what our nameservers are.
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static int
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load_nameservers_with_getnetworkparams(void)
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{
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// Based on MSDN examples and inspection of c-ares code.
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FIXED_INFO *fixed;
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HMODULE handle = 0;
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ULONG size = sizeof(FIXED_INFO);
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@ -1798,4 +1801,70 @@ load_nameservers_with_getnetworkparams(void)
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return status;
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}
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static int
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config_nameserver_from_reg_key(HKEY key, const char *subkey)
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{
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char *buf;
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DWORD bufsz = 0, type = 0;
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int status = 0;
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if (RegQueryValueEx(key, subkey, 0, &type, NULL, &bufsz)
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!= ERROR_MORE_DATA)
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return -1;
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if (!(buf = malloc(bufsz)))
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return -1;
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if (RegQueryValueEx(key, subkey, 0, &type, (LPBYTE)buf, &bufsz)
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== ERROR_SUCCESS && bufsz > 1) {
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status = eventdns_nameserver_ip_add_line(buf);
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}
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free(buf);
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return status;
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}
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static int
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load_nameservers_from_registry(void)
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{
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int found = 0;
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#define TRY(k, name) \
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if (!found && config_nameserver_from_reg_key(k,name) == 0) { \
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log("Found nameservers in %s/%s",#k,name); \
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found = 1; \
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}
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if (IS_NT()) {
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HKEY nt_key = 0, interfaces_key = 0;
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0,
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KEY_READ, &nt_key) != ERROR_SUCCESS)
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return -1;
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RegOpenKeyEx(nt_key, "Interfaces", 0,
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KEY_QUERY_VALUE|KEY_ENUMERATE_SUBKEYS,
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&interfaces_key);
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TRY(nt_key, NAMESERVER);
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TRY(nt_key, DHCPNAMESERVER);
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TRY(interfaces_key, NAMESERVER);
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TRY(interfaces_key, DHCPNAMESERVER);
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RegCloseKey(interfaces_key);
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RegCloseKey(nt_key);
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} else {
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HKEY win_key = 0;
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_9X, 0,
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KEY_READ, &win_key) != ERROR_SUCCESS)
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return -1;
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TRY(win_key, NAMESERVER);
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RegCloseKey(win_key);
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}
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return found ? 0 : -1;
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#undef TRY
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}
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int
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eventdns_config_windows_nameservers(void)
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{
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if (load_nameservers_with_getnetworkparams() == 0)
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return 0;
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return load_nameservers_from_registry();
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}
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#endif
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