D9887.diff
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	Index: head/bin/kill/kill.c
	===================================================================
	--- head/bin/kill/kill.c
	+++ head/bin/kill/kill.c
	@@ -66,7 +66,9 @@
	int
	main(int argc, char *argv[])
	{
	- int errors, numsig, pid, ret;
	+ long pidl;
	+ pid_t pid;
	+ int errors, numsig, ret;
	char *ep;

	if (argc < 2)
	@@ -137,8 +139,10 @@
	else
	#endif
	{
	- pid = strtol(*argv, &ep, 10);
	- if (!*argv \|\| ep)
	+ pidl = strtol(*argv, &ep, 10);
	+ /* Check for overflow of pid_t. */
	+ pid = (pid_t)pidl;
	+ if (!*argv \|\| ep \|\| pid != pidl)
	errx(2, "illegal process id: %s", *argv);
	ret = kill(pid, numsig);
	}