IP address library copied from libmill

Signed-off-by: Martin Sustrik <[email protected]>

Author: sustrik

.gitignore

@@ -21,6 +21,7 @@ dillsocks.pc
 libtool
 *.o
 *.lo
+dns/.dirstamp
 libdillsocks.la
 test-suite.log
 tests/.dirstamp

Makefile.am

@@ -31,7 +31,11 @@ dillsocksinclude_HEADERS = dillsocks.h
 
 lib_LTLIBRARIES = libdillsocks.la
 
-libdillsocks_la_SOURCES =
+libdillsocks_la_SOURCES = \
+    ip.c \
+    utils.h \
+    dns/dns.h \
+    dns/dns.c
 
 libdillsocks_la_LDFLAGS = -no-undefined -version-info \
     @DILLSOCKS_LIBTOOL_VERSION@

dillsocks.h

@@ -73,9 +73,21 @@
 #endif
 
 /******************************************************************************/
-/*  TODO                                                                      */
+/*  IP address resolution                                                     */
 /******************************************************************************/
 
+#define IPADDR_IPV4 1
+#define IPADDR_IPV6 2
+#define IPADDR_PREF_IPV4 3
+#define IPADDR_PREF_IPV6 4
+#define IPADDR_MAXSTRLEN 46
+
+typedef struct {char data[32];} ipaddr;
+
+DILL_EXPORT ipaddr iplocal(const char *name, int port, int mode);
+DILL_EXPORT ipaddr ipremote(const char *name, int port, int mode,
+    int64_t deadline);
+DILL_EXPORT const char *ipaddrstr(ipaddr addr, char *ipstr);
 
 #endif