Constification of LHASH. Contributed by "Paul D. Smith" <psmith@gnu.org>

I didn't apply all his patches yet, since I have some hesitance about
unconstifying.  To be pondered.

crypto/lhash/lh_stats.c

@@ -139,7 +139,7 @@ void lh_node_usage_stats(LHASH *lh, FILE *out)
 #else
 
 #ifndef NO_FP_API
-void lh_stats(LHASH *lh, FILE *fp)
+void lh_stats(const LHASH *lh, FILE *fp)
 	{
 	BIO *bp;
 
@@ -151,7 +151,7 @@ void lh_stats(LHASH *lh, FILE *fp)
 end:;
 	}
 
-void lh_node_stats(LHASH *lh, FILE *fp)
+void lh_node_stats(const LHASH *lh, FILE *fp)
 	{
 	BIO *bp;
 
@@ -163,7 +163,7 @@ void lh_node_stats(LHASH *lh, FILE *fp)
 end:;
 	}
 
-void lh_node_usage_stats(LHASH *lh, FILE *fp)
+void lh_node_usage_stats(const LHASH *lh, FILE *fp)
 	{
 	BIO *bp;
 
@@ -177,7 +177,7 @@ end:;
 
 #endif
 
-void lh_stats_bio(LHASH *lh, BIO *out)
+void lh_stats_bio(const LHASH *lh, BIO *out)
 	{
 	char buf[128];
 
@@ -225,7 +225,7 @@ void lh_stats_bio(LHASH *lh, BIO *out)
 #endif
 	}
 
-void lh_node_stats_bio(LHASH *lh, BIO *out)
+void lh_node_stats_bio(const LHASH *lh, BIO *out)
 	{
 	LHASH_NODE *n;
 	unsigned int i,num;
@@ -240,7 +240,7 @@ void lh_node_stats_bio(LHASH *lh, BIO *out)
 		}
 	}
 
-void lh_node_usage_stats_bio(LHASH *lh, BIO *out)
+void lh_node_usage_stats_bio(const LHASH *lh, BIO *out)
 	{
 	LHASH_NODE *n;
 	unsigned long num;

crypto/lhash/lhash.c

@@ -455,7 +455,7 @@ unsigned long lh_strhash(const char *c)
 	return((ret>>16)^ret);
 	}
 
-unsigned long lh_num_items(LHASH *lh)
+unsigned long lh_num_items(const LHASH *lh)
 	{
 	return lh ? lh->num_items : 0;
 	}

crypto/lhash/lhash.h

@@ -128,18 +128,18 @@ void *lh_retrieve(LHASH *lh, void *data);
     void lh_doall(LHASH *lh, void (*func)(/*void *b*/));
 void lh_doall_arg(LHASH *lh, void (*func)(/*void *a,void *b*/),void *arg);
 unsigned long lh_strhash(const char *c);
-unsigned long lh_num_items(LHASH *lh);
+unsigned long lh_num_items(const LHASH *lh);
 
 #ifndef NO_FP_API
-void lh_stats(LHASH *lh, FILE *out);
-void lh_node_stats(LHASH *lh, FILE *out);
-void lh_node_usage_stats(LHASH *lh, FILE *out);
+void lh_stats(const LHASH *lh, FILE *out);
+void lh_node_stats(const LHASH *lh, FILE *out);
+void lh_node_usage_stats(const LHASH *lh, FILE *out);
 #endif
 
 #ifndef NO_BIO
-void lh_stats_bio(LHASH *lh, BIO *out);
-void lh_node_stats_bio(LHASH *lh, BIO *out);
-void lh_node_usage_stats_bio(LHASH *lh, BIO *out);
+void lh_stats_bio(const LHASH *lh, BIO *out);
+void lh_node_stats_bio(const LHASH *lh, BIO *out);
+void lh_node_usage_stats_bio(const LHASH *lh, BIO *out);
 #endif
 #ifdef  __cplusplus
 }