[libvirt] [PATCH 2/2] virNetServerClientNewPostExecRestart: Avoid align problems

[Michal Privoznik]

I've noticed this while trying to compile libvirt on my arm box.

  CC       rpc/libvirt_net_rpc_server_la-virnetserverclient.lo
rpc/virnetserverclient.c: In function 'virNetServerClientNewPostExecRestart':
rpc/virnetserverclient.c:516:45: error: cast increases required alignment of target type [-Werror=cast-align]
                                             (long long *) &timestamp) < 0) {
                                             ^
cc1: all warnings being treated as errors

Problem is, @timestap is defined as time_t which is 32 bits long,
and we are typecasting it to long long which is 64bits long.
Solution is to make @timestamp type of long long. But that could
overflow when passing the variable to
virNetServerClientNewInternal(). Well, we can do this and hope to
find a better solution for this till 19 January 2038 (yes, time_t
on my arm box is signed long int).

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/rpc/virnetserverclient.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/rpc/virnetserverclient.c b/src/rpc/virnetserverclient.c
index d3a3a18..271930f 100644
--- a/src/rpc/virnetserverclient.c
+++ b/src/rpc/virnetserverclient.c
@@ -472,7 +472,7 @@ virNetServerClientPtr virNetServerClientNewPostExecRestart(virJSONValuePtr objec
     bool readonly;
     unsigned int nrequests_max;
     unsigned long long id;
-    time_t timestamp;
+    long long timestamp;
 
     if (virJSONValueObjectGetNumberInt(object, "auth", &auth) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@@ -511,8 +511,7 @@ virNetServerClientPtr virNetServerClientNewPostExecRestart(virJSONValuePtr objec
     if (!virJSONValueObjectHasKey(object, "conn_time")) {
         timestamp = 0;
     } else {
-        if (virJSONValueObjectGetNumberLong(object, "conn_time",
-                                            (long long *) &timestamp) < 0) {
+        if (virJSONValueObjectGetNumberLong(object, "conn_time", &timestamp) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Malformed conn_time field in JSON "
                              "state document"));
-- 
2.8.1