diff options
Diffstat (limited to 'qga/commands-win32.c')
| -rw-r--r-- | qga/commands-win32.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 50094ddfd3..0ee07b6e23 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -370,25 +370,37 @@ int64_t qmp_guest_get_time(Error **errp) return time_ns; } -void qmp_guest_set_time(int64_t time_ns, Error **errp) +void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) { SYSTEMTIME ts; FILETIME tf; LONGLONG time; - if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { - error_setg(errp, "Time %" PRId64 "is invalid", time_ns); - return; - } + if (has_time) { + /* Okay, user passed a time to set. Validate it. */ + if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { + error_setg(errp, "Time %" PRId64 "is invalid", time_ns); + return; + } - time = time_ns / 100 + W32_FT_OFFSET; + time = time_ns / 100 + W32_FT_OFFSET; - tf.dwLowDateTime = (DWORD) time; - tf.dwHighDateTime = (DWORD) (time >> 32); + tf.dwLowDateTime = (DWORD) time; + tf.dwHighDateTime = (DWORD) (time >> 32); - if (!FileTimeToSystemTime(&tf, &ts)) { - error_setg(errp, "Failed to convert system time %d", (int)GetLastError()); - return; + if (!FileTimeToSystemTime(&tf, &ts)) { + error_setg(errp, "Failed to convert system time %d", + (int)GetLastError()); + return; + } + } else { + /* Otherwise read the time from RTC which contains the correct value. + * Hopefully. */ + GetSystemTime(&ts); + if (ts.wYear < 1601 || ts.wYear > 30827) { + error_setg(errp, "Failed to get time"); + return; + } } acquire_privilege(SE_SYSTEMTIME_NAME, errp); |