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Diffstat (limited to 'src/libsystemd/sd-rtnl')
-rw-r--r--src/libsystemd/sd-rtnl/sd-rtnl.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/src/libsystemd/sd-rtnl/sd-rtnl.c b/src/libsystemd/sd-rtnl/sd-rtnl.c
index 543bad9f4f..4ee360c0a8 100644
--- a/src/libsystemd/sd-rtnl/sd-rtnl.c
+++ b/src/libsystemd/sd-rtnl/sd-rtnl.c
@@ -75,8 +75,27 @@ static bool rtnl_pid_changed(sd_rtnl *rtnl) {
return rtnl->original_pid != getpid();
}
-int sd_rtnl_open(sd_rtnl **ret, uint32_t groups) {
+static int rtnl_compute_groups_ap(uint32_t *_groups, unsigned n_groups, va_list ap) {
+ uint32_t groups = 0;
+ unsigned i;
+
+ for (i = 0; i < n_groups; i++) {
+ unsigned group;
+
+ group = va_arg(ap, unsigned);
+ assert_return(group < 32, -EINVAL);
+
+ groups |= group ? (1 << (group - 1)) : 0;
+ }
+
+ *_groups = groups;
+
+ return 0;
+}
+
+int sd_rtnl_open(sd_rtnl **ret, unsigned n_groups, ...) {
_cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ va_list ap;
socklen_t addrlen;
int r, one = 1;
@@ -93,7 +112,11 @@ int sd_rtnl_open(sd_rtnl **ret, uint32_t groups) {
if (setsockopt(rtnl->fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)
return -errno;
- rtnl->sockaddr.nl.nl_groups = groups;
+ va_start(ap, n_groups);
+ r = rtnl_compute_groups_ap(&rtnl->sockaddr.nl.nl_groups, n_groups, ap);
+ va_end(ap);
+ if (r < 0)
+ return r;
addrlen = sizeof(rtnl->sockaddr);