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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-05-27 20:30:49 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-05-27 20:30:56 +0200 |
| commit | e2af6ce3d5f97600e8c953612608523a4ff727bd (patch) | |
| tree | 9ba4935b77c0acb0bf46b7abbbf6768b7f77adeb | |
| parent | 050d592eee6c96ae8e08c6dfefe42f10685f0718 (diff) | |
| download | libmnl-e2af6ce3d5f97600e8c953612608523a4ff727bd.tar.gz libmnl-e2af6ce3d5f97600e8c953612608523a4ff727bd.zip | |
examples: rtnl-link-dump: display HW address
| -rw-r--r-- | examples/rtnl/rtnl-link-dump.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/examples/rtnl/rtnl-link-dump.c b/examples/rtnl/rtnl-link-dump.c index 159f3b6..f717cea 100644 --- a/examples/rtnl/rtnl-link-dump.c +++ b/examples/rtnl/rtnl-link-dump.c @@ -3,6 +3,7 @@ #include <stdlib.h> #include <unistd.h> #include <time.h> +#include <arpa/inet.h> #include <libmnl/libmnl.h> #include <linux/if.h> @@ -19,6 +20,12 @@ static int data_attr_cb(const struct nlattr *attr, void *data) return MNL_CB_OK; switch(type) { + case IFLA_ADDRESS: + if (mnl_attr_validate(attr, MNL_TYPE_BINARY) < 0) { + perror("mnl_attr_validate"); + return MNL_CB_ERROR; + } + break; case IFLA_MTU: if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { perror("mnl_attr_validate"); @@ -55,7 +62,18 @@ static int data_cb(const struct nlmsghdr *nlh, void *data) printf("mtu=%d ", mnl_attr_get_u32(tb[IFLA_MTU])); } if (tb[IFLA_IFNAME]) { - printf("name=%s", mnl_attr_get_str(tb[IFLA_IFNAME])); + printf("name=%s ", mnl_attr_get_str(tb[IFLA_IFNAME])); + } + if (tb[IFLA_ADDRESS]) { + uint8_t *hwaddr = mnl_attr_get_payload(tb[IFLA_ADDRESS]); + int i; + + printf("hwaddr="); + for (i=0; i<mnl_attr_get_payload_len(tb[IFLA_ADDRESS]); i++) { + printf("%.2x", hwaddr[i] & 0xff); + if (i+1 != mnl_attr_get_payload_len(tb[IFLA_ADDRESS])) + printf(":"); + } } printf("\n"); return MNL_CB_OK; |