libc/stdlib: Minor cleanups to code originating in NetBSD

Mostly ANSIfication and typos.

Obtained from:	NetBSD
MFC after:	5 days

3 files changed, 14 insertions, 22 deletions

diff --git a/lib/libc/stdlib/hcreate.c b/lib/libc/stdlib/hcreate.c
index c68fe1b..cfcd115 100644
--- a/lib/libc/stdlib/hcreate.c
+++ b/lib/libc/stdlib/hcreate.c
@@ -1,4 +1,4 @@
-/* $NetBSD: hcreate.c,v 1.2 2001/02/19 21:26:04 ross Exp $ */
+/* $NetBSD: hcreate.c,v 1.6 2008/07/21 12:05:43 lukem Exp $ */
 
 /*
  * Copyright (c) 2001 Christopher G. Demetriou
@@ -15,7 +15,7 @@
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *          This product includes software developed for the
- *          NetBSD Project.  See http://www.netbsd.org/ for
+ *          NetBSD Project.  See http://www.NetBSD.org/ for
  *          information about NetBSD.
  * 4. The name of the author may not be used to endorse or promote products
  *    derived from this software without specific prior written permission.
@@ -49,7 +49,7 @@
 #include <sys/cdefs.h>
 #if 0
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: hcreate.c,v 1.2 2001/02/19 21:26:04 ross Exp $");
+__RCSID("$NetBSD: hcreate.c,v 1.6 2008/07/21 12:05:43 lukem Exp $");
 #endif /* LIBC_SCCS and not lint */
 #endif
 __FBSDID("$FreeBSD$");
diff --git a/lib/libc/stdlib/tsearch.c b/lib/libc/stdlib/tsearch.c
index 149c2bb..16bbf7c 100644
--- a/lib/libc/stdlib/tsearch.c
+++ b/lib/libc/stdlib/tsearch.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: tsearch.c,v 1.3 1999/09/16 11:45:37 lukem Exp $	*/
+/*	$NetBSD: tsearch.c,v 1.7 2012/06/25 22:32:45 abs Exp $	*/
 
 /*
  * Tree search generalized from Knuth (6.2.2) Algorithm T just like
@@ -14,7 +14,7 @@
 #include <sys/cdefs.h>
 #if 0
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: tsearch.c,v 1.3 1999/09/16 11:45:37 lukem Exp $");
+__RCSID("$NetBSD: tsearch.c,v 1.7 2012/06/25 22:32:45 abs Exp $");
 #endif /* LIBC_SCCS and not lint */
 #endif
 __FBSDID("$FreeBSD$");
@@ -25,10 +25,8 @@ __FBSDID("$FreeBSD$");
 
 /* find or insert datum into search tree */
 void *
-tsearch(vkey, vrootp, compar)
-	const void *vkey;		/* key to be located */
-	void **vrootp;			/* address of tree root */
-	int (*compar)(const void *, const void *);
+tsearch(const void *vkey, void **vrootp,
+    int (*compar)(const void *, const void *))
 {
 	node_t *q;
 	node_t **rootp = (node_t **)vrootp;
@@ -50,8 +48,7 @@ tsearch(vkey, vrootp, compar)
 	q = malloc(sizeof(node_t));		/* T5: key not found */
 	if (q != 0) {				/* make new node */
 		*rootp = q;			/* link new node to old */
-		/* LINTED const castaway ok */
-		q->key = (void *)vkey;		/* initialize new node */
+		q->key = __DECONST(void *, vkey);/* initialize new node */
 		q->llink = q->rlink = NULL;
 	}
 	return q;
diff --git a/lib/libc/stdlib/twalk.c b/lib/libc/stdlib/twalk.c
index 55f220f3..7acee41 100644
--- a/lib/libc/stdlib/twalk.c
+++ b/lib/libc/stdlib/twalk.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: twalk.c,v 1.1 1999/02/22 10:33:16 christos Exp $	*/
+/*	$NetBSD: twalk.c,v 1.4 2012/03/20 16:38:45 matt Exp $	*/
 
 /*
  * Tree search generalized from Knuth (6.2.2) Algorithm T just like
@@ -14,7 +14,7 @@
 #include <sys/cdefs.h>
 #if 0
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: twalk.c,v 1.1 1999/02/22 10:33:16 christos Exp $");
+__RCSID("$NetBSD: twalk.c,v 1.4 2012/03/20 16:38:45 matt Exp $");
 #endif /* LIBC_SCCS and not lint */
 #endif
 __FBSDID("$FreeBSD$");
@@ -23,15 +23,12 @@ __FBSDID("$FreeBSD$");
 #include <search.h>
 #include <stdlib.h>
 
-static void trecurse(const node_t *,
-    void (*action)(const void *, VISIT, int), int level);
+typedef void (*cmp_fn_t)(const void *, VISIT, int);
 
 /* Walk the nodes of a tree */
 static void
-trecurse(root, action, level)
-	const node_t *root;	/* Root of the tree to be walked */
-	void (*action)(const void *, VISIT, int);
-	int level;
+trecurse(const node_t *root,	/* Root of the tree to be walked */
+	cmp_fn_t action, int level)
 {
 
 	if (root->llink == NULL && root->rlink == NULL)
@@ -49,9 +46,7 @@ trecurse(root, action, level)
 
 /* Walk the nodes of a tree */
 void
-twalk(vroot, action)
-	const void *vroot;	/* Root of the tree to be walked */
-	void (*action)(const void *, VISIT, int);
+twalk(const void *vroot, cmp_fn_t action) /* Root of the tree to be walked */
 {
 	if (vroot != NULL && action != NULL)
 		trecurse(vroot, action, 0);