From: shenghualong <shenghual...@huawei.com> When the Windows guest users set the time to year 2099, the return value of qemu_timedate_diff() will overflow with variable clock mode as below format:
<clock offset='variable' adjustment='-1201568405' basis='utc'> Let's change the return value of qemu_timedate_diff() from int to time_t to fix the possible overflow problem. Signed-off-by: shenghualong <shenghual...@huawei.com> Signed-off-by: Gonglei <arei.gong...@huawei.com> --- include/qemu-common.h | 2 +- vl.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/qemu-common.h b/include/qemu-common.h index 05319b9..6fb80aa 100644 --- a/include/qemu-common.h +++ b/include/qemu-common.h @@ -33,7 +33,7 @@ int qemu_main(int argc, char **argv, char **envp); #endif void qemu_get_timedate(struct tm *tm, int offset); -int qemu_timedate_diff(struct tm *tm); +time_t qemu_timedate_diff(struct tm *tm); #define qemu_isalnum(c) isalnum((unsigned char)(c)) #define qemu_isalpha(c) isalpha((unsigned char)(c)) diff --git a/vl.c b/vl.c index e517a8d..9d225da 100644 --- a/vl.c +++ b/vl.c @@ -146,7 +146,7 @@ int nb_nics; NICInfo nd_table[MAX_NICS]; int autostart; static int rtc_utc = 1; -static int rtc_date_offset = -1; /* -1 means no change */ +static time_t rtc_date_offset = -1; /* -1 means no change */ QEMUClockType rtc_clock; int vga_interface_type = VGA_NONE; static int full_screen = 0; @@ -812,7 +812,7 @@ void qemu_get_timedate(struct tm *tm, int offset) } } -int qemu_timedate_diff(struct tm *tm) +time_t qemu_timedate_diff(struct tm *tm) { time_t seconds; -- 1.8.3.1