From 9062704bf8d3b75f73272bb2a8d6539568933e57 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 17 Sep 2022 19:41:15 -0700
Subject: [PATCH] kill: port to picky-conversion hosts
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* src/kill.c (send_signals): Don’t rely on conversion overflow
being silent.
---
 src/kill.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/kill.c b/src/kill.c
index be01b2bf4c..33e602dcdc 100644
--- a/src/kill.c
+++ b/src/kill.c
@@ -199,9 +199,10 @@ send_signals (int signum, char *const *argv)
     {
       char *endp;
       intmax_t n = (errno = 0, strtoimax (arg, &endp, 10));
-      pid_t pid = n;
+      pid_t pid;
 
-      if (errno == ERANGE || pid != n || arg == endp || *endp)
+      if (errno == ERANGE || INT_ADD_WRAPV (n, 0, &pid)
+          || arg == endp || *endp)
         {
           error (0, 0, _("%s: invalid process id"), quote (arg));
           status = EXIT_FAILURE;
-- 
2.47.2