D60210.diff
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	diff --git a/usr.sbin/tcpdrop/tcpdrop.c b/usr.sbin/tcpdrop/tcpdrop.c
	--- a/usr.sbin/tcpdrop/tcpdrop.c
	+++ b/usr.sbin/tcpdrop/tcpdrop.c
	@@ -63,16 +63,16 @@
	int
	main(int argc, char *argv[])
	{
	- char stack[TCP_FUNCTION_NAME_LEN_MAX];
	- char ca_name[TCP_CA_NAME_MAX];
	- char lport, fport;
	+ char stack_buf[TCP_FUNCTION_NAME_LEN_MAX];
	+ char ca_name_buf[TCP_CA_NAME_MAX];
	+ char stack, ca_name, lport, fport;
	bool dropall, dropspecific;
	int ch, state;

	dropall = false;
	dropspecific = false;
	- ca_name[0] = '\0';
	- stack[0] = '\0';
	+ ca_name = NULL;
	+ stack = NULL;
	state = -1;

	while ((ch = getopt(argc, argv, "aC:lS:s:")) != -1) {
	@@ -82,14 +82,16 @@
	break;
	case 'C':
	dropspecific = true;
	- strlcpy(ca_name, optarg, sizeof(ca_name));
	+ strlcpy(ca_name_buf, optarg, sizeof(ca_name_buf));
	+ ca_name = ca_name_buf;
	break;
	case 'l':
	tcpdrop_list_commands = true;
	break;
	case 'S':
	dropspecific = true;
	- strlcpy(stack, optarg, sizeof(stack));
	+ strlcpy(stack_buf, optarg, sizeof(stack_buf));
	+ stack = stack_buf;
	break;
	case 's':
	dropspecific = true;
	@@ -266,12 +268,12 @@
	* If requested, skip sockets not having the requested
	* congestion control algorithm.
	*/
	- if (ca_name[0] != '\0' &&
	+ if (ca_name != NULL &&
	strncmp(xtp->xt_cc, ca_name, TCP_CA_NAME_MAX))
	continue;

	/* If requested, skip sockets not having the requested stack. */
	- if (stack[0] != '\0' &&
	+ if (stack != NULL &&
	strncmp(xtp->xt_stack, stack, TCP_FUNCTION_NAME_LEN_MAX))
	continue;