resolves build issue for Debian 12 sleuthkit#3239. Verified make completed without any errors. No other testing was done.

Author: msgoff

tsk/img/aff.c

@@ -297,9 +297,9 @@ aff_open(int a_num_img, const TSK_TCHAR * const images[], unsigned int a_ssize)
 
     img_info = (TSK_IMG_INFO *) aff_info;
 
-    aff_info->img_info->read = aff_read;
-    aff_info->img_info->close = aff_close;
-    aff_info->img_info->imgstat = aff_imgstat;
+    aff_info->img_info.read = aff_read;
+    aff_info->img_info.close = aff_close;
+    aff_info->img_info.imgstat = aff_imgstat;
 
     // Save the image path in TSK_IMG_INFO - this is mostly for consistency
     // with the other image types and is not currently used

tsk/img/aff.h

@@ -38,7 +38,7 @@ extern "C" {
  * Stores AFF-specific data
  */
 typedef struct {
-    IMG_INFO img_info;
+    struct IMG_INFO img_info;
     AFFILE *af_file;
 
     tsk_lock_t read_lock;