diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..45d62d8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.sw?
diff --git a/Makefile b/Makefile
index b867009..344cc9f 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@
 all:
 	$(MAKE) -C asn1-compiled
 	$(MAKE) -C src
+	$(MAKE) -C tests
 
 regenerate-asn1:
 	rm -f asn1-compiled/*
@@ -12,3 +13,4 @@ regenerate-asn1:
 clean:
 	$(MAKE) -C asn1-compiled lib-clean
 	$(MAKE) -C src clean
+	$(MAKE) -C tests clean
diff --git a/asn1/.gitignore b/asn1/.gitignore
new file mode 100644
index 0000000..45d62d8
--- /dev/null
+++ b/asn1/.gitignore
@@ -0,0 +1 @@
+*.sw?
diff --git a/asn1/Makefile.compiled b/asn1/Makefile.compiled
index 0e10178..8e873d3 100644
--- a/asn1/Makefile.compiled
+++ b/asn1/Makefile.compiled
@@ -2,7 +2,7 @@
 
 LIBNAME=libtcap-asn.a
 
-CFLAGS=-g -Wall -O3
+CFLAGS=-g -Wall -O3 -fPIC
 
 lib: $(LIBNAME)
 
diff --git a/include/libtcap.h b/include/libtcap.h
new file mode 100644
index 0000000..1e1313a
--- /dev/null
+++ b/include/libtcap.h
@@ -0,0 +1,11 @@
+#ifndef _LIBTCAP_H_
+#define _LIBTCAP_H_
+
+
+#include "TCMessage.h"
+
+
+TCMessage_t *tcap_decode(const char *buf, size_t len);
+
+
+#endif
diff --git a/src/.gitignore b/src/.gitignore
index 45d62d8..3f05b2d 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -1 +1,4 @@
 *.sw?
+*.so
+*.so.0
+*.o
diff --git a/src/Makefile b/src/Makefile
index 6cf7af6..80d096c 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2,7 +2,7 @@ LIBNAME=libtcap
 VERSION=0
 
 CC=gcc
-CFLAGS=-I../asn1-compiled -g -Wall -O3 -fPIC
+CFLAGS=-I../asn1-compiled -I../include -g -Wall -O3 -fPIC
 LDFLAGS=-O3 -shared -fPIC -Wl,-soname,$(LIBNAME).so.$(VERSION)
 
 OBJS=tcap.o
@@ -13,9 +13,13 @@ OBJS=tcap.o
 
 all: $(LIBNAME).so
 
-$(LIBNAME).so: $(OBJS) ../asn1-compiled/libtcap-asn.a
-	$(CC) -o $@ $(OBJS) $(LDFLAGS)
+$(LIBNAME).so.$(VERSION): $(OBJS) ../asn1-compiled/libtcap-asn.a
+	$(CC) -o $@ $(OBJS) ../asn1-compiled/libtcap-asn.a $(LDFLAGS)
+
+$(LIBNAME).so: $(LIBNAME).so.$(VERSION)
+	ln -s $(LIBNAME).so.$(VERSION) $(LIBNAME).so
 
 clean:
 	rm -f $(OBJS)
 	rm -f $(LIBNAME).so
+	rm -f $(LIBNAME).so.$(VERSION)
diff --git a/src/tcap.c b/src/tcap.c
index 1d851c8..45ef2ab 100644
--- a/src/tcap.c
+++ b/src/tcap.c
@@ -1,3 +1,5 @@
+#include "libtcap.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
index 0000000..45d62d8
--- /dev/null
+++ b/tests/.gitignore
@@ -0,0 +1 @@
+*.sw?
diff --git a/tests/Makefile b/tests/Makefile
new file mode 100644
index 0000000..388c6a6
--- /dev/null
+++ b/tests/Makefile
@@ -0,0 +1,9 @@
+.PHONY: all clean
+
+all: basic
+
+basic: basic.c ../src/libtcap.so.0
+	gcc -Wall -g -I ../include -I../asn1-compiled basic.c -o basic -L../src -ltcap
+
+clean:
+	rm -f basic
diff --git a/tests/basic.c b/tests/basic.c
new file mode 100644
index 0000000..030c753
--- /dev/null
+++ b/tests/basic.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include "libtcap.h"
+
+const char tcap[] = "\x64\x81\x86\x49\x03\x0a\x7e\x71\x6b\x2a\x28\x28\x06\x07\x00\x11\x86\x05\x01\x01\x01\xa0\x1d\x61\x1b\xa1\x0d\x06\x0b\x2a\x81\x76\x82\x15\x01\x01\x01\x01\x00\x01\xa2\x03\x02\x01\x00\xa3\x05\xa1\x03\x02\x01\x00\x6c\x53\xa1\x10\x02\x01\x58\x02\x01\x22\xbf\x33\x07\x83\x05\x31\x30\x30\x32\x34\xa1\x3f\x02\x01\x59\x02\x01\x14\x30\x37\xa0\x0e\x04\x0c\x83\x90\x89\x10\x10\x80\x22\x08\x00\x55\x50\x05\x83\x01\x09\x9a\x22\x30\x20\xa0\x1e\x80\x01\x00\x81\x01\x00\x82\x01\x01\x83\x01\x01\x84\x01\x00\x85\x01\x00\x86\x01\x01\x87\x01\x01\x88\x01\x00\x89\x01\x00";
+const int tcap_len = sizeof(tcap) - 1;
+
+
+int main() {
+	TCMessage_t *tcm;
+
+	tcm = tcap_decode(tcap, tcap_len);
+
+	printf("%p\n", tcm);
+
+	return 0;
+}