mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-25 01:34:11 +03:00
3b67fc9f9f
For instance:
hellolibvirt/hellolibvirt.c: In function 'showDomains':
hellolibvirt/hellolibvirt.c💯19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (i = 0; i < numNames; i++) {
^
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
#include<stdio.h>
|
|
#include<stdlib.h>
|
|
#include<time.h>
|
|
#include<libvirt/libvirt-admin.h>
|
|
|
|
static const char *
|
|
exampleTransportToString(int transport)
|
|
{
|
|
const char *str = NULL;
|
|
|
|
switch ((virClientTransport) transport) {
|
|
case VIR_CLIENT_TRANS_UNIX:
|
|
str = "unix";
|
|
break;
|
|
case VIR_CLIENT_TRANS_TCP:
|
|
str = "tcp";
|
|
break;
|
|
case VIR_CLIENT_TRANS_TLS:
|
|
str = "tls";
|
|
break;
|
|
}
|
|
|
|
return str ? str : "unknown";
|
|
}
|
|
|
|
static char *
|
|
exampleGetTimeStr(time_t then)
|
|
{
|
|
char *ret = NULL;
|
|
struct tm timeinfo;
|
|
|
|
if (!localtime_r(&then, &timeinfo))
|
|
return NULL;
|
|
|
|
if (!(ret = calloc(64, sizeof(char))))
|
|
return NULL;
|
|
|
|
if (strftime(ret, 64, "%Y-%m-%d %H:%M:%S%z",
|
|
&timeinfo) == 0) {
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret = -1;
|
|
virAdmConnectPtr conn = NULL;
|
|
virAdmServerPtr srv = NULL; /* which server list the clients from */
|
|
virAdmClientPtr *clients = NULL; /* where to store the servers */
|
|
ssize_t i = 0;
|
|
int count = 0;
|
|
|
|
if (argc != 2) {
|
|
fprintf(stderr, "One argument specifying the server to list connected "
|
|
"clients for is expected\n");
|
|
return -1;
|
|
}
|
|
|
|
/* first, open a connection to the daemon */
|
|
if (!(conn = virAdmConnectOpen(NULL, 0)))
|
|
return -1;
|
|
|
|
/* first a virAdmServerPtr handle is necessary to obtain, that is done by
|
|
* doing a lookup for specific server, let's get a handle on "libvirtd"
|
|
* server
|
|
*/
|
|
if (!(srv = virAdmConnectLookupServer(conn, argv[1], 0)))
|
|
goto cleanup;
|
|
|
|
/* now get the currently connected clients to server @srv */
|
|
if ((count = virAdmServerListClients(srv, &clients, 0)) < 0)
|
|
goto cleanup;
|
|
|
|
/* let's print the currently connected clients and some basic info about
|
|
* them, we have 2 options how to interate over the returned list,
|
|
* use @count as the boundary or use the fact that @clients are guaranteed
|
|
* to contain 1 extra element NULL;
|
|
* this example uses the first option
|
|
*/
|
|
printf(" %-5s %-15s %-15s\n%s\n", "Id", "Transport", "Connected since",
|
|
"--------------------------------------------------");
|
|
|
|
for (i = 0; i < count; i++) {
|
|
virAdmClientPtr client = clients[i];
|
|
unsigned long long id = virAdmClientGetID(client);
|
|
int transport = virAdmClientGetTransport(client);
|
|
char * timestr = NULL;
|
|
if (!(timestr =
|
|
exampleGetTimeStr(virAdmClientGetTimestamp(client))))
|
|
goto cleanup;
|
|
|
|
printf(" %-5llu %-15s %-15s\n", id,
|
|
exampleTransportToString(transport), timestr);
|
|
free(timestr);
|
|
}
|
|
|
|
ret = 0;
|
|
cleanup:
|
|
/* Once finished, free the list of clients, free the server handle and
|
|
* close the connection properly, @conn will be deallocated automatically
|
|
*/
|
|
for (i = 0; i < count; i++)
|
|
virAdmClientFree(clients[i]);
|
|
free(clients);
|
|
virAdmServerFree(srv);
|
|
virAdmConnectClose(conn);
|
|
return ret;
|
|
}
|