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| author | Simon Kelley <simon@thekelleys.org.uk> | 2020-03-10 23:55:18 +0000 |
|---|---|---|
| committer | Simon Kelley <simon@thekelleys.org.uk> | 2020-03-10 23:55:18 +0000 |
| commit | 1627d577af03cdf747285e79fa747b6aaae8033f (patch) | |
| tree | 68c9853915d20ba708e57f36f6df27c93d5fef62 /src/netlink.c | |
| parent | b837c4528d5e6c9815ec5b610b5abe4822c3e548 (diff) | |
| download | dnsmasq-1627d577af03cdf747285e79fa747b6aaae8033f.tar.gz | |
Set NETLINK_NO_ENOBUFS in netlink socket, to avoid POLLERR returns.
Diffstat (limited to 'src/netlink.c')
| -rw-r--r-- | src/netlink.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/netlink.c b/src/netlink.c index d59bf62..a1ca5d1 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -22,6 +22,12 @@ #include <linux/netlink.h> #include <linux/rtnetlink.h> +/* Blergh. Radv does this, so that's our excuse. */ +#ifndef SOL_NETLINK +#define SOL_NETLINK 270 +#endif + + /* linux 2.6.19 buggers up the headers, patch it up here. */ #ifndef IFA_RTA # define IFA_RTA(r) \ @@ -44,6 +50,7 @@ void netlink_init(void) { struct sockaddr_nl addr; socklen_t slen = sizeof(addr); + int opt = 1; addr.nl_family = AF_NETLINK; addr.nl_pad = 0; @@ -72,6 +79,7 @@ void netlink_init(void) } if (daemon->netlinkfd == -1 || + setsockopt(daemon->netlinkfd, SOL_NETLINK, NETLINK_NO_ENOBUFS, &opt, sizeof(opt)) == -1 || getsockname(daemon->netlinkfd, (struct sockaddr *)&addr, &slen) == -1) die(_("cannot create netlink socket: %s"), NULL, EC_MISC); |