Add test programs for checking libwpa_client linking

libwpa_test1 and libwpa_test2 targets can now be used to check
libwpa_client linking for static and shared library cases respectively.

Signed-off-by: Jouni Malinen <j@w1.fi>

.gitignore

@@ -19,6 +19,8 @@ wpa_supplicant/wpa_gui/Makefile
 wpa_supplicant/wpa_gui/wpa_gui
 wpa_supplicant/wpa_gui-qt4/Makefile
 wpa_supplicant/wpa_gui-qt4/wpa_gui
+wpa_supplicant/libwpa_test1
+wpa_supplicant/libwpa_test2
 hostapd/hostapd
 hostapd/hostapd_cli
 hostapd/hlr_auc_gw

wpa_supplicant/Makefile

@@ -1722,6 +1722,14 @@ libwpa_client.so: $(LIBCTRLSO)
 	@$(E) "  CC  $@ ($^)"
 	$(Q)$(CC) $(LDFLAGS) -o $@ $(CFLAGS) -shared -fPIC $^
 
+libwpa_test1: tests/libwpa_test.o libwpa_client.a
+	$(Q)$(LDO) $(LDFLAGS) -o libwpa_test1 tests/libwpa_test.o libwpa_client.a $(LIBS_c)
+	@$(E) "  LD " $@
+
+libwpa_test2: tests/libwpa_test.o libwpa_client.so
+	$(Q)$(LDO) $(LDFLAGS) -o libwpa_test2 tests/libwpa_test.o -L. -lwpa_client $(LIBS_c)
+	@$(E) "  LD " $@
+
 link_test: $(OBJS) $(OBJS_h) tests/link_test.o
 	$(Q)$(LDO) $(LDFLAGS) -o link_test $(OBJS) $(OBJS_h) tests/link_test.o $(LIBS)
 	@$(E) "  LD " $@
@@ -1843,5 +1851,6 @@ clean:
 	rm -rf lcov-html
 	rm -f libwpa_client.a
 	rm -f libwpa_client.so
+	rm -f libwpa_test1 libwpa_test2
 
 -include $(OBJS:%.o=%.d)

wpa_supplicant/tests/libwpa_test.c

@@ -0,0 +1,32 @@
+/*
+ * libwpa_test - Test program for libwpa_client.* library linking
+ * Copyright (c) 2015, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common/wpa_ctrl.h"
+
+int main(int argc, char *argv[])
+{
+	struct wpa_ctrl *ctrl;
+
+	ctrl = wpa_ctrl_open("foo");
+	if (!ctrl)
+		return -1;
+	if (wpa_ctrl_attach(ctrl) == 0)
+		wpa_ctrl_detach(ctrl);
+	if (wpa_ctrl_pending(ctrl)) {
+		char buf[10];
+		size_t len;
+
+		len = sizeof(buf);
+		wpa_ctrl_recv(ctrl, buf, &len);
+	}
+	wpa_ctrl_close(ctrl);
+
+	return 0;
+}