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Provide an empty name to getsockname() if one hasn't been set up.

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Ok'd (for now) by: julian
This commit is contained in:
Brian Somers 1999-11-11 20:08:04 +00:00
parent babd82dfa2
commit 03e3936479
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=53098
1 changed files with 28 additions and 15 deletions
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43
sys/netgraph/ng_socket.c
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@ -370,23 +370,36 @@ ngd_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
static int
ng_setsockaddr(struct socket *so, struct sockaddr **addr)
{
struct ngpcb *const pcbp = sotongpcb(so);
struct sockaddr *sa;
int namelen;
struct ngpcb *pcbp;
struct sockaddr_ng *sg;
int sg_len, namelen, s;
if (pcbp == 0)
/* Why isn't sg_data a `char[1]' ? :-( */
sg_len = sizeof(struct sockaddr_ng) - sizeof(sg->sg_data) + 1;
s = splnet();
pcbp = sotongpcb(so);
if (pcbp == 0) {
splx(s);
return (EINVAL);
if (pcbp->sockdata->node->name != NULL) {
namelen = strlen(pcbp->sockdata->node->name) + 3;
MALLOC(sa, struct sockaddr *, namelen, M_SONAME, M_WAITOK);
if (sa == NULL)
return (ENOMEM);
sa->sa_family = AF_NETGRAPH;
sa->sa_len = namelen;
strcpy(sa->sa_data, pcbp->sockdata->node->name);
*addr = sa;
} else
*addr = NULL; /* XXX check this makes sense */
}
namelen = 0; /* silence compiler ! */
if (pcbp->sockdata->node->name != NULL)
sg_len += namelen = strlen(pcbp->sockdata->node->name);
MALLOC(sg, struct sockaddr_ng *, sg_len, M_SONAME, M_WAITOK);
bzero(sg, sg_len);
if (pcbp->sockdata->node->name != NULL)
bcopy(pcbp->sockdata->node->name, sg->sg_data, namelen);
splx(s);
sg->sg_len = sg_len;
sg->sg_family = AF_NETGRAPH;
*addr = (struct sockaddr *)sg;
return (0);
}