1 files changed, 5 insertions, 4 deletions

diff --git a/bitmap.c b/bitmap.c
index f95032250..5089b0407 100644
--- a/bitmap.c
+++ b/bitmap.c
@@ -53,8 +53,9 @@ void
 bitmap_free(struct bitmap *b)
 {
         if (b != NULL && b->d != NULL) {
-                explicit_bzero(b->d, b->len);
+                bitmap_zero(b);
                 free(b->d);
+                b->d = NULL;
         }
         free(b);
 }
@@ -86,10 +87,10 @@ reserve(struct bitmap *b, u_int n)
                 return -1; /* invalid */
         nlen = (n / BITMAP_BITS) + 1;
         if (b->len < nlen) {
-                if ((tmp = reallocarray(b->d, nlen, BITMAP_BYTES)) == NULL)
+                if ((tmp = recallocarray(b->d, b->len,
+                    nlen, BITMAP_BYTES)) == NULL)
                         return -1;
                 b->d = tmp;
-                memset(b->d + b->len, 0, (nlen - b->len) * BITMAP_BYTES);
                 b->len = nlen;
         }
         return 0;
@@ -188,7 +189,7 @@ bitmap_from_string(struct bitmap *b, const void *p, size_t l)
 {
         int r;
         size_t i, offset, shift;
-        u_char *s = (u_char *)p;
+        const u_char *s = (const u_char *)p;
 
         if (l > BITMAP_MAX / 8)
                 return -1;