Update .s documentation

[rmac] / direct.c

diff --git a/direct.c b/direct.c
index 607ad7c05926174d6ec20937c0ac345da09ef44b..809bb79090460d4632a7c397e5de0061819af491 100644 (file)
--- a/direct.c
+++ b/direct.c
@@ -622,6 +622,10 @@ allright:
                                        close(fd);
                                        return ERROR;
                                }
+                               if ((int64_t)size <= 0)
+                               {
+                                       return error("invalid incbin size requested");
+                               }
                        }
                        else
                                size = lseek(fd, 0L, SEEK_END);
@@ -641,7 +645,10 @@ allright:
                                        }
 
                                        lseek(fd, pos, SEEK_SET);
-                                       size -= pos;
+                                       if ((int64_t)(size - pos) < 0)
+                                       {
+                                               return error("requested incbin size out of range");
+                                       }
                                }
                                else
                                {