alpha-ecoff: check archive element size

If we run out of file before decompression finishes, the archive is
broken.  Don't allow the buffer to be returned with uninitialised data.

	* coff-alpha.c (alpha_ecoff_get_elt_at_filepos): Return an
	error if the full element size can't be decompressed.

diff --git a/bfd/coff-alpha.c b/bfd/coff-alpha.c
index fcc8aef66731ba385caea9535cab591d2443a9f8..9a621e93c5ba6d7c0dfaa512b4de8e1bee23a0d6 100644 (file)
--- a/bfd/coff-alpha.c
+++ b/bfd/coff-alpha.c
@@ -2204,6 +2204,8 @@ alpha_ecoff_get_elt_at_filepos (bfd *archive, file_ptr filepos,
          if (left == 0)
            break;
        }
+      if (left != 0)
+       goto error_return;
     }
 
   /* Now the uncompressed file contents are in buf.  */