Add ccache marshalling tests

Add a new ccache test program t_marshal.c which verifies the new
marshalling functions and also the FILE ccache type against the
expected representations of the ccache header, default principal, and
credentials.

.gitignore

@@ -188,6 +188,8 @@ testlog
 
 /src/lib/krb5/ccache/t_cc
 /src/lib/krb5/ccache/t_cccursor
+/src/lib/krb5/ccache/t_marshal
+/src/lib/krb5/ccache/testcache
 
 /src/lib/krb5/error_tables/*_err.[ch]
 

src/lib/krb5/ccache/Makefile.in

@@ -70,7 +70,8 @@ SRCS=	$(srcdir)/ccbase.c \
 EXTRADEPSRCS= \
 	$(srcdir)/t_cc.c \
 	$(srcdir)/t_cccol.c \
-	$(srcdir)/t_cccursor.c
+	$(srcdir)/t_cccursor.c \
+	$(srcdir)/t_marshal.c
 
 ##DOS##OBJS=$(OBJS) $(OUTPRE)ccfns.$(OBJEXT)
 
@@ -115,15 +116,22 @@ T_CCCURSOR_OBJS = t_cccursor.o
 t_cccursor: $(T_CCCURSOR_OBJS) $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ $(T_CCCURSOR_OBJS) $(KRB5_BASE_LIBS)
 
-check-unix:: t_cc
+T_MARSHAL_OBJS = t_marshal.o
+t_marshal: $(T_MARSHAL_OBJS) $(KRB5_BASE_DEPLIBS)
+	$(CC_LINK) -o $@ $(T_MARSHAL_OBJS) $(KRB5_BASE_LIBS)
+
+check-unix:: t_cc t_marshal
 	KRB5_CONFIG=$(srcdir)/t_krb5.conf ; export KRB5_CONFIG ;\
 	$(RUN_SETUP) $(VALGRIND) ./t_cc
+	KRB5_CONFIG=$(srcdir)/t_krb5.conf ; export KRB5_CONFIG ;\
+	$(RUN_SETUP) $(VALGRIND) ./t_marshal testcache
 
 check-pytests:: t_cccursor t_cccol
 	$(RUNPYTEST) $(srcdir)/t_cccol.py $(PYTESTFLAGS)
 
 clean-unix::
 	$(RM) t_cc t_cc.o t_cccursor t_cccursor.o t_cccol t_cccol.o
+	$(RM) t_marshal t_marshal.o testcache
 
 ##WIN32## $(OUTPRE)cc_mslsa.$(OBJEXT): cc_mslsa.c $(top_srcdir)/include/k5-int.h $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS)