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[src/trunk]: src/sys/arch/xen/xen strlcpy() the command line only if it's pre...
details: https://anonhg.NetBSD.org/src/rev/fe8c00216a12
branches: trunk
changeset: 971918:fe8c00216a12
user: bouyer <bouyer%NetBSD.org@localhost>
date: Fri May 08 17:28:33 2020 +0000
description:
strlcpy() the command line only if it's present.
diffstat:
sys/arch/xen/xen/hypervisor.c | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
diffs (37 lines):
diff -r 11b6f0611c18 -r fe8c00216a12 sys/arch/xen/xen/hypervisor.c
--- a/sys/arch/xen/xen/hypervisor.c Fri May 08 16:43:17 2020 +0000
+++ b/sys/arch/xen/xen/hypervisor.c Fri May 08 17:28:33 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: hypervisor.c,v 1.82 2020/05/07 15:44:35 bouyer Exp $ */
+/* $NetBSD: hypervisor.c,v 1.83 2020/05/08 17:28:33 bouyer Exp $ */
/*
* Copyright (c) 2005 Manuel Bouyer.
@@ -53,7 +53,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: hypervisor.c,v 1.82 2020/05/07 15:44:35 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: hypervisor.c,v 1.83 2020/05/08 17:28:33 bouyer Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -261,10 +261,14 @@
delay_func = xen_delay;
x86_initclock_func = xen_initclocks;
x86_cpu_initclock_func = xen_cpu_initclocks;
- cmd_line =
- (void *)((uintptr_t)hvm_start_info->cmdline_paddr + KERNBASE);
- strlcpy(xen_start_info.cmd_line, cmd_line,
- sizeof(xen_start_info.cmd_line));
+ if (hvm_start_info->cmdline_paddr != 0) {
+ cmd_line =
+ (void *)((uintptr_t)hvm_start_info->cmdline_paddr + KERNBASE);
+ strlcpy(xen_start_info.cmd_line, cmd_line,
+ sizeof(xen_start_info.cmd_line));
+ } else {
+ xen_start_info.cmd_line[0] = '\0';
+ }
xen_start_info.flags = hvm_start_info->flags;
}
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