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authorjhendersonHDF <jhenderson@hdfgroup.org>2023-04-15 00:28:02 (GMT)
committerGitHub <noreply@github.com>2023-04-15 00:28:02 (GMT)
commitae202d3d62195dde72b15fb9cff90ed5ea3f9553 (patch)
treedee008c7577eeeaaea9949de3c3dcd4d4e04d2a3 /src/H5private.h
parent69c720bffa4980779dc06d3cf9cd9f271bc8588b (diff)
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Add buffer overrun checks to H5O__layout_decode and H5O__sdspace_decode (#2679) (#2728)
Diffstat (limited to 'src/H5private.h')
-rw-r--r--src/H5private.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/H5private.h b/src/H5private.h
index 0b68305..45cf9ae 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -324,6 +324,11 @@
/* Raise an integer to a power of 2 */
#define H5_EXP2(n) (1 << (n))
+/* Check if a read of size bytes starting at ptr would overflow past
+ * the last valid byte, pointed to by buffer_end.
+ */
+#define H5_IS_BUFFER_OVERFLOW(ptr, size, buffer_end) (((ptr) + (size)-1) > (buffer_end))
+
/*
* HDF Boolean type.
*/