Fix checks for huge numbers of images

[wimlib] / include / wimlib / header.h

diff --git a/include/wimlib/header.h b/include/wimlib/header.h
index 62d916f0656375e6d9b7bc46f1faead8e8ebb433..290e0b2cda2ed28544f0225c6c015ebee10110b1 100644 (file)
--- a/include/wimlib/header.h
+++ b/include/wimlib/header.h
@@ -5,6 +5,8 @@
 #include "wimlib/types.h"
 #include "wimlib/endianness.h"
 
+#include <limits.h>
+
 /* Length of "Globally Unique ID" field in WIM header.  */
 #define WIM_GUID_LEN    16
 
@@ -115,6 +117,7 @@ struct wim_header_disk {
        /* +0xd0 (208)  */
 } _packed_attribute;
 
+#define MAX_IMAGES (((INT_MAX < INT32_MAX) ? INT_MAX : INT32_MAX) - 1)
 
 /* In-memory representation of a WIM header.  See `struct wim_header_disk' for
  * field descriptions.  */