===================================================================
RCS file: /cvs/mandoc/compat_ohash.c,v
retrieving revision 1.3
retrieving revision 1.7
diff -u -p -r1.3 -r1.7
--- mandoc/compat_ohash.c	2014/06/20 02:10:05	1.3
+++ mandoc/compat_ohash.c	2020/06/15 01:37:15	1.7
@@ -1,15 +1,6 @@
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* $Id: compat_ohash.c,v 1.7 2020/06/15 01:37:15 schwarze Exp $ */
+/* $OpenBSD: compat_ohash.c,v 1.7 2020/06/15 01:37:15 schwarze Exp $ */
 
-#ifdef HAVE_OHASH
-
-int dummy;
-
-#else
-
-/* $OpenBSD: compat_ohash.c,v 1.3 2014/06/20 02:10:05 schwarze Exp $ */
-
 /* Copyright (c) 1999, 2004 Marc Espie <espie@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -24,11 +15,14 @@ int dummy;
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
+#include "config.h"
 
+#include <sys/types.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <limits.h>
 #include "compat_ohash.h"
 
 struct _ohash_record {
@@ -69,8 +63,7 @@ ohash_create_entry(struct ohash_info *i, const char *s
 void
 ohash_delete(struct ohash *h)
 {
-	(h->info.hfree)(h->t, sizeof(struct _ohash_record) * h->size,
-		h->info.data);
+	(h->info.free)(h->t, h->info.data);
 #ifndef NDEBUG
 	h->t = NULL;
 #endif
@@ -80,13 +73,17 @@ static void
 ohash_resize(struct ohash *h)
 {
 	struct _ohash_record *n;
-	unsigned int 	ns, j;
+	size_t ns;
+	unsigned int	j;
 	unsigned int	i, incr;
 
-	if (4 * h->deleted < h->total)
-		ns = h->size << 1;
-	else if (3 * h->deleted > 2 * h->total)
-		ns = h->size >> 1;
+	if (4 * h->deleted < h->total) {
+		if (h->size >= (UINT_MAX >> 1U))
+			ns = UINT_MAX;
+		else
+			ns = h->size << 1U;
+	} else if (3 * h->deleted > 2 * h->total)
+		ns = h->size >> 1U;
 	else
 		ns = h->size;
 	if (ns < MINSIZE)
@@ -95,7 +92,8 @@ ohash_resize(struct ohash *h)
 	STAT_HASH_EXPAND++;
 	STAT_HASH_SIZE += ns - h->size;
 #endif
-	n = (h->info.halloc)(sizeof(struct _ohash_record) * ns, h->info.data);
+
+	n = (h->info.calloc)(ns, sizeof(struct _ohash_record), h->info.data);
 	if (!n)
 		return;
 
@@ -112,8 +110,7 @@ ohash_resize(struct ohash *h)
 			n[i].p = h->t[j].p;
 		}
 	}
-	(h->info.hfree)(h->t, sizeof(struct _ohash_record) * h->size, 
-		h->info.data);
+	(h->info.free)(h->t, h->info.data);
 	h->t = n;
 	h->size = ns;
 	h->total -= h->deleted;
@@ -199,12 +196,12 @@ ohash_init(struct ohash *h, unsigned int size, struct 
 #endif
 	/* Copy info so that caller may free it.  */
 	h->info.key_offset = info->key_offset;
-	h->info.halloc = info->halloc;
-	h->info.hfree = info->hfree;
+	h->info.calloc = info->calloc;
+	h->info.free = info->free;
 	h->info.alloc = info->alloc;
 	h->info.data = info->data;
-	h->t = (h->info.halloc)(sizeof(struct _ohash_record) * h->size,
-	    h->info.data);
+	h->t = (h->info.calloc)(h->size, sizeof(struct _ohash_record),
+		    h->info.data);
 	h->total = h->deleted = 0;
 }
 
@@ -331,5 +328,3 @@ ohash_qlookupi(struct ohash *h, const char *s, const c
 	hv = ohash_interval(s, e);
 	return ohash_lookup_interval(h, s, *e, hv);
 }
-
-#endif /*!HAVE_OHASH*/