Refuse "ip link add/replace" without device type parameter

Fix confusing error message noticed by Martin Josefsson:
Fix typo noticed by Phil Oester: information vs. informatin

# ip link add
RTNETLINK answers: Operation not supported

The reason is missing device type information, refuse this and print a message.

Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/ip/iplink.c b/ip/iplink.c
index 81122aec95fecf708a9af3519540c0e35b604c3c..1c6b0d472c69a0356649148c02665e3aa2694f94 100644 (file)
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -336,6 +336,10 @@ static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
                        return -1;
                }
                linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo;
+       } else if (flags & NLM_F_CREATE) {
+               fprintf(stderr, "Not enough information: \"type\" argument "
+                               "is required\n");
+               return -1;
        }
 
        if (!(flags & NLM_F_CREATE)) {