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-rw-r--r--source3/lib/bitmap.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/source3/lib/bitmap.c b/source3/lib/bitmap.c
index 1023dd6541..3fa20cdd11 100644
--- a/source3/lib/bitmap.c
+++ b/source3/lib/bitmap.c
@@ -84,6 +84,20 @@ struct bitmap *bitmap_talloc(TALLOC_CTX *mem_ctx, int n)
}
/****************************************************************************
+copy as much of the source bitmap as will fit in the destination bitmap.
+****************************************************************************/
+
+int bitmap_copy(struct bitmap * const dst, const struct bitmap * const src)
+{
+ int count = MIN(dst->n, src->n);
+
+ SMB_ASSERT(dst->b != src->b);
+ memcpy(dst->b, src->b, sizeof(dst->b[0])*(count+31)/32);
+
+ return count;
+}
+
+/****************************************************************************
set a bit in a bitmap
****************************************************************************/
BOOL bitmap_set(struct bitmap *bm, unsigned i)