Moved krb5, gss, and crypto library initialization/cleanup code into new dedicated functions; added code to release global state allocated in prng.c

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@11960 dc483132-0cff-0310-8789-dd5450dbe970

5 files changed, 52 insertions, 0 deletions

diff --git a/src/lib/crypto/ChangeLog b/src/lib/crypto/ChangeLog
index 0c4236842c..957a0ec312 100644
--- a/src/lib/crypto/ChangeLog
+++ b/src/lib/crypto/ChangeLog
@@ -1,3 +1,9 @@
+Fri Jan 21 22:47:00 2000  Miro Jurisic  <meeroh@mit.edu>
+
+	* Makefile.in: added crypto_libinit.[co]
+	* crypto_libinit.[ch]: new files, contain library initialization
+		and cleanup code
+
 2000-01-21  Ken Raeburn  <raeburn@mit.edu>
 
 	* cksumtypes.c (krb5_cksumtypes_list, krb5_cksumtypes_length): Now
diff --git a/src/lib/crypto/Makefile.in b/src/lib/crypto/Makefile.in
index d86325bf82..71bddf5c4b 100644
--- a/src/lib/crypto/Makefile.in
+++ b/src/lib/crypto/Makefile.in
@@ -26,6 +26,7 @@ STLIBOBJS=\
 	cksumtype_to_string.o	\
 	cksumtypes.o		\
 	coll_proof_cksum.o	\
+	crypto_libinit.o	\
 	decrypt.o		\
 	encrypt.o		\
 	encrypt_length.o	\
@@ -53,6 +54,7 @@ OBJS=\
 	$(OUTPRE)cksumtype_to_string.$(OBJEXT)	\
 	$(OUTPRE)cksumtypes.$(OBJEXT)		\
 	$(OUTPRE)coll_proof_cksum.$(OBJEXT)	\
+	$(OUTPRE)crypto_libinit.$(OBJEXT)	\
 	$(OUTPRE)decrypt.$(OBJEXT)		\
 	$(OUTPRE)encrypt.$(OBJEXT)		\
 	$(OUTPRE)encrypt_length.$(OBJEXT)	\
@@ -80,6 +82,7 @@ SRCS=\
 	$(subdir)/cksumtype_to_string.c	\
 	$(subdir)/cksumtypes.c		\
 	$(subdir)/coll_proof_cksum.c	\
+	$(subdir)/crypto_libinit.c	\
 	$(subdir)/decrypt.c		\
 	$(subdir)/encrypt.c		\
 	$(subdir)/encrypt_length.c	\
diff --git a/src/lib/crypto/crypto_libinit.c b/src/lib/crypto/crypto_libinit.c
new file mode 100644
index 0000000000..5ae277e9e8
--- /dev/null
+++ b/src/lib/crypto/crypto_libinit.c
@@ -0,0 +1,30 @@
+#include <assert.h>
+
+static	int		initialized = false;
+
+/*
+ * Initialize the crypto library.
+ */
+
+int cryptoint_initialize_library (void)
+{
+	
+	if (!initialized) {
+		initialized = true;
+	}
+	
+	return 0;
+}
+
+/*
+ * Clean up the crypto library state
+ */
+
+void cryptoint_cleanup_library (void)
+{
+	assert (initialized);
+	
+	prng_cleanup ();
+	
+	initialized = false;
+}
\ No newline at end of file
diff --git a/src/lib/crypto/crypto_libinit.h b/src/lib/crypto/crypto_libinit.h
new file mode 100644
index 0000000000..3586a63aa9
--- /dev/null
+++ b/src/lib/crypto/crypto_libinit.h
@@ -0,0 +1,7 @@
+#ifndef KRB5_LIBINIT_H
+#define KRB5_LIBINIT_H
+
+int cryptoint_initialize_library (void);
+void cryptoint_cleanup_library (void);
+
+#endif /* KRB5_LIBINIT_H */
diff --git a/src/lib/crypto/prng.c b/src/lib/crypto/prng.c
index c0f106f0a5..6d401a9bf0 100644
--- a/src/lib/crypto/prng.c
+++ b/src/lib/crypto/prng.c
@@ -153,3 +153,9 @@ krb5_c_random_make_octets(krb5_context context, krb5_data *data)
 
     return(0);
 }
+
+void prng_cleanup (void)
+{
+	free (random_state);
+	inited = 0;
+}
\ No newline at end of file