diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ifaddrs.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ifaddrs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c index 6765387bc7..bc1ca8565f 100644 --- a/sysdeps/unix/sysv/linux/ifaddrs.c +++ b/sysdeps/unix/sysv/linux/ifaddrs.c @@ -233,9 +233,17 @@ netlink_open (struct netlink_handle *h) nladdr.nl_family = AF_NETLINK; if (__bind (h->fd, (struct sockaddr *) &nladdr, sizeof (nladdr)) < 0) { + close_and_out: netlink_close (h); return -1; } + /* Determine the ID the kernel assigned for this netlink connection. + It is not necessarily the PID if there is more than one socket + open. */ + socklen_t addr_len = sizeof (nladdr); + if (__getsockname (h->fd, (struct sockaddr *) &nladdr, &addr_len) < 0) + goto close_and_out; + h->pid = nladdr.nl_pid; return 0; } @@ -303,8 +311,6 @@ getifaddrs (struct ifaddrs **ifap) return fallback_getifaddrs (ifap); #endif - nh.pid = getpid (); - /* Tell the kernel that we wish to get a list of all active interfaces. */ if (netlink_sendreq (&nh, RTM_GETLINK) < 0) |