crc32-stream: recycle I/O buffer.

* chksum.c (crc32_stream): use iobuf_get to obtain the I/O
buffer, and iobuf_put to recycle it.

1 files changed, 3 insertions, 2 deletions

diff --git a/chksum.c b/chksum.c
index 0400593b..4c7c7f2e 100644
--- a/chksum.c
+++ b/chksum.c
@@ -165,8 +165,8 @@ val sha256(val obj, val buf_in)
 val crc32_stream(val stream, val nbytes)
 {
   u32_t crc = 0;
-  val bfsz = num_fast(BUFSIZ);
-  val buf = make_buf(bfsz, nil, nil);
+  val buf = iobuf_get();
+  val bfsz = length_buf(buf);
 
   if (null_or_missing_p(nbytes)) {
     for (;;) {
@@ -200,6 +200,7 @@ val crc32_stream(val stream, val nbytes)
     }
   }
 
+  iobuf_put(buf);
   return unum(crc);
 }