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Code Issues Releases Activity

Fixed an off-by-one error when dealing with interface name

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(if_xname is NUL-terminated).

Don't waste time making a copy of if_xname in attach().
This commit is contained in:
Ruslan Ermilov 2005-02-03 12:54:18 +00:00
parent bbb75d7844
commit 96f82336ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=141196
1 changed files with 6 additions and 9 deletions
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15
sys/netgraph/atm/ng_atm.c
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@ -936,12 +936,12 @@ ng_atm_rcvmsg(node_p node, item_p item, hook_p lasthook)
switch (msg->header.cmd) {
case NGM_ATM_GET_IFNAME:
NG_MKRESPONSE(resp, msg, IFNAMSIZ + 1, M_NOWAIT);
NG_MKRESPONSE(resp, msg, IFNAMSIZ, M_NOWAIT);
if (resp == NULL) {
error = ENOMEM;
break;
}
strlcpy(resp->data, priv->ifp->if_xname, IFNAMSIZ + 1);
strlcpy(resp->data, priv->ifp->if_xname, IFNAMSIZ);
break;
case NGM_ATM_GET_CONFIG:
@ -1259,24 +1259,21 @@ ng_atm_disconnect(hook_p hook)
static void
ng_atm_attach(struct ifnet *ifp)
{
char name[IFNAMSIZ+1];
node_p node;
struct priv *priv;
KASSERT(IFP2NG(ifp) == 0, ("%s: node alreay exists?", __FUNCTION__));
strlcpy(name, ifp->if_xname, sizeof(name));
if (ng_make_node_common(&ng_atm_typestruct, &node) != 0) {
log(LOG_ERR, "%s: can't create node for %s\n",
__FUNCTION__, name);
__FUNCTION__, ifp->if_xname);
return;
}
priv = malloc(sizeof(*priv), M_NETGRAPH, M_NOWAIT | M_ZERO);
if (priv == NULL) {
log(LOG_ERR, "%s: can't allocate memory for %s\n",
__FUNCTION__, name);
__FUNCTION__, ifp->if_xname);
NG_NODE_UNREF(node);
return;
}
@ -1285,9 +1282,9 @@ ng_atm_attach(struct ifnet *ifp)
LIST_INIT(&priv->vccs);
IFP2NG_SET(ifp, node);
if (ng_name_node(node, name) != 0) {
if (ng_name_node(node, ifp->if_xname) != 0) {
log(LOG_WARNING, "%s: can't name node %s\n",
__FUNCTION__, name);
__FUNCTION__, ifp->if_xname);
}
}