libiptc: use a family-invariant xtc_ops struct for code reduction

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/libiptc/Makefile.am b/libiptc/Makefile.am
index 22c920f..0b59007 100644
--- a/libiptc/Makefile.am
+++ b/libiptc/Makefile.am
@@ -10,6 +10,6 @@
 libiptc_la_LIBADD   = libip4tc.la libip6tc.la
 libiptc_la_LDFLAGS  = -version-info 0:0:0 ${libiptc_LDFLAGS2}
 libip4tc_la_SOURCES = libip4tc.c
-libip4tc_la_LDFLAGS = -version-info 0:0:0
+libip4tc_la_LDFLAGS = -version-info 1:0:1
 libip6tc_la_SOURCES = libip6tc.c
-libip6tc_la_LDFLAGS = -version-info 0:0:0 ${libiptc_LDFLAGS2}
+libip6tc_la_LDFLAGS = -version-info 1:0:1 ${libiptc_LDFLAGS2}
diff --git a/libiptc/libip4tc.c b/libiptc/libip4tc.c
index c55cbc7..dd59951 100644
--- a/libiptc/libip4tc.c
+++ b/libiptc/libip4tc.c
@@ -90,6 +90,7 @@
 #define TC_STRERROR		iptc_strerror
 #define TC_NUM_RULES		iptc_num_rules
 #define TC_GET_RULE		iptc_get_rule
+#define TC_OPS			iptc_ops
 
 #define TC_AF			AF_INET
 #define TC_IPPROTO		IPPROTO_IP
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index 9febee3..7128e1c 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -88,6 +88,7 @@
 #define TC_STRERROR		ip6tc_strerror
 #define TC_NUM_RULES		ip6tc_num_rules
 #define TC_GET_RULE		ip6tc_get_rule
+#define TC_OPS			ip6tc_ops
 
 #define TC_AF			AF_INET6
 #define TC_IPPROTO		IPPROTO_IPV6
diff --git a/libiptc/libiptc.c b/libiptc/libiptc.c
index 593c5de..63fcfc2 100644
--- a/libiptc/libiptc.c
+++ b/libiptc/libiptc.c
@@ -33,6 +33,7 @@
 #include <sys/socket.h>
 #include <stdbool.h>
 #include <xtables.h>
+#include <libiptc/xtcshared.h>
 
 #include "linux_list.h"
 
@@ -2731,3 +2732,14 @@
 
 	return strerror(err);
 }
+
+const struct xtc_ops TC_OPS = {
+	.commit        = TC_COMMIT,
+	.free          = TC_FREE,
+	.builtin       = TC_BUILTIN,
+	.is_chain      = TC_IS_CHAIN,
+	.flush_entries = TC_FLUSH_ENTRIES,
+	.create_chain  = TC_CREATE_CHAIN,
+	.set_policy    = TC_SET_POLICY,
+	.strerror      = TC_STRERROR,
+};