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Convert failure of setsockopt(..., SOL_NETLINK, NETLINK_NO_ENOBUFS, ...) into warning.

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We call this, which avoids POLLERR returns from netlink on a loaded system,
if the kernel is new enough to support it. Sadly, qemu-user doesn't support
the socket option, so if it fails despite the kernel being new enough to
support it, we just emit a warning, rather than failing hard.
This commit is contained in:
Simon Kelley
2020-04-19 23:16:52 +01:00
parent 00fe2f49e0
commit 913fa15fb1
3 changed files with 14 additions and 5 deletions
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2
src/dnsmasq.h
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@@ -1450,7 +1450,7 @@ void clear_cache_and_reload(time_t now);
/* netlink.c */
#ifdef HAVE_LINUX_NETWORK
void netlink_init(void);
char *netlink_init(void);
void netlink_multicast(void);
#endif