From bec5cfee7660f6e283efbd30a693a6f8e9ea46b8 Mon Sep 17 00:00:00 2001
From: Paul Eggert
Date: Sun, 5 Apr 2020 01:17:32 -0700
Subject: Improve integer range checking

* src/bignum.c (check_integer_range, check_uinteger_max)
(check_int_nonnegative): New functions.
* src/frame.c (check_frame_pixels): New function.
(Fset_frame_height, Fset_frame_width, Fset_frame_size): Use it.
* src/lisp.h (CHECK_RANGED_INTEGER, CHECK_TYPE_RANGED_INTEGER):
Remove these macros.  Unless otherwise specified, all callers
replaced by calls to check_integer_range, check_uinteger_range,
check_int_nonnegative.
* src/frame.c (gui_set_right_divider_width)
(gui_set_bottom_divider_width):
* src/nsfns.m (ns_set_internal_border_width):
* src/xfns.c (x_set_internal_border_width):
Using check_int_nonnegative means these functions no longer
incorrectly reject negative bignums; they treat them as 0,
just like negative fixnums.
---
 src/process.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'src/process.c')

diff --git a/src/process.c b/src/process.c
index e6d18fbaad2..6e5bcf307ab 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1392,14 +1392,12 @@ nil otherwise.  */)
   CHECK_PROCESS (process);
 
   /* All known platforms store window sizes as 'unsigned short'.  */
-  CHECK_RANGED_INTEGER (height, 0, USHRT_MAX);
-  CHECK_RANGED_INTEGER (width, 0, USHRT_MAX);
+  unsigned short h = check_uinteger_max (height, USHRT_MAX);
+  unsigned short w = check_uinteger_max (width, USHRT_MAX);
 
   if (NETCONN_P (process)
       || XPROCESS (process)->infd < 0
-      || (set_window_size (XPROCESS (process)->infd,
-			   XFIXNUM (height), XFIXNUM (width))
-	  < 0))
+      || set_window_size (XPROCESS (process)->infd, h, w) < 0)
     return Qnil;
   else
     return Qt;
@@ -7075,10 +7073,7 @@ SIGCODE may be an integer, or a symbol whose name is a signal name.  */)
     }
 
   if (FIXNUMP (sigcode))
-    {
-      CHECK_TYPE_RANGED_INTEGER (int, sigcode);
-      signo = XFIXNUM (sigcode);
-    }
+    signo = check_integer_range (sigcode, INT_MIN, INT_MAX);
   else
     {
       char *name;
-- 
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