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authorAlex Harpin <development@landsofshadow.co.uk>2015-10-18 11:48:55 +0100
committerAlex Harpin <development@landsofshadow.co.uk>2015-10-18 11:48:55 +0100
commitcebada14c32e6603380a913fb852854c46605d1d (patch)
tree88396b80b0a558866002809642876792f3c60de9 /examples/kobject/kobject-event.c
parent0bb90c44862ce3f9018656beadfbc2aac4a0d517 (diff)
parent1891e0e2cefced50e7bfdacd50942cefe5bf73ba (diff)
downloadlibmnl-upstream.tar.gz
libmnl-upstream.zip
Merge remote-tracking branch 'source/master' into upstreamupstream
Diffstat (limited to 'examples/kobject/kobject-event.c')
-rw-r--r--examples/kobject/kobject-event.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/examples/kobject/kobject-event.c b/examples/kobject/kobject-event.c
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+/* This example is placed in the public domain. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <libmnl/libmnl.h>
+#include <linux/netlink.h>
+
+int main(int argc, char *argv[])
+{
+ struct mnl_socket *nl;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ int ret;
+
+ nl = mnl_socket_open(NETLINK_KOBJECT_UEVENT);
+ if (nl == NULL) {
+ perror("mnl_socket_open");
+ exit(EXIT_FAILURE);
+ }
+
+ /* There is one single group in kobject over netlink */
+ if (mnl_socket_bind(nl, (1<<0), MNL_SOCKET_AUTOPID) < 0) {
+ perror("mnl_socket_bind");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ while (ret > 0) {
+ int i;
+
+ /* kobject uses a string based protocol, with no initial
+ * netlink header.
+ */
+ for (i=0; i<ret; i++)
+ printf("%c", buf[i]);
+
+ printf("\n");
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ }
+ if (ret == -1) {
+ perror("error");
+ exit(EXIT_FAILURE);
+ }
+
+ mnl_socket_close(nl);
+
+ return 0;
+}