X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fclient%2Farray_append.c;h=52bcf97f2599b0a9136c122a78ec672ed5e62812;hb=20da835cb5f85fc3416caef6e70bd74711bd75d0;hp=37fde0ed90cdbde8097ce44839cbc4215b5aca53;hpb=1cb57a35a3b3cc4ec8870531ca254a655c0bdda2;p=plomrogue

diff --git a/src/client/array_append.c b/src/client/array_append.c
index 37fde0e..52bcf97 100644
--- a/src/client/array_append.c
+++ b/src/client/array_append.c
@@ -1,10 +1,16 @@
-/* src/client/array_append.c */
+/* src/client/array_append.c
+ *
+ * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
+ * or any later version. For details on its copyright, license, and warranties,
+ * see the file NOTICE in the root directory of the PlomRogue source package.
+ */
 
 #include "array_append.h"
 #include <stddef.h> /* size_t */
-#include <stdint.h> /* uint32_t */
+#include <stdint.h> /* uint32_t, UINT32_MAX */
 #include <stdlib.h> /* free() */
 #include <string.h> /* memcpy() */
+#include "../common/rexit.h" /* exit_trouble() */
 #include "../common/try_malloc.h" /* try_malloc() */
 
 
@@ -12,12 +18,12 @@
 extern void array_append(uint32_t old_n, size_t region_size, void * new_region,
                         void ** ptr_old_array)
 {
+    exit_trouble(UINT32_MAX<(old_n+1)*region_size, __func__, "too large sizes");
     uint32_t old_size = old_n * region_size;
     uint32_t new_size = old_size + region_size;
     char * new_array = try_malloc(new_size, __func__);
     memcpy(new_array, * ptr_old_array, old_size);
     memcpy(new_array + (old_n * region_size), new_region, region_size);
     free(* ptr_old_array);
-    * ptr_old_array = new_array;
+    *ptr_old_array = new_array;
 }
-