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sd-rtnl: don't fall over when receiving 0 bytes from the socket

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causes EOF. Seems like a kernel bug. Ignoring it seems to work be the best we
can do for now...

See https://bugs.freedesktop.org/show_bug.cgi?id=88397
This commit is contained in:
Tom Gundersen 2015-02-06 11:54:30 +01:00
parent b621bfd231
commit da53c5516e
1 changed files with 5 additions and 3 deletions
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8
src/libsystemd/sd-rtnl/rtnl-message.c
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@ -1350,9 +1350,11 @@ static int socket_recv_message(int fd, struct iovec *iov, uint32_t *_group, bool
log_debug("rtnl: no data in socket");
return (errno == EAGAIN || errno == EINTR) ? 0 : -errno;
} else if (r == 0)
/* connection was closed by the kernel */
return -ECONNRESET;
} else if (r == 0) {
/* connection was closed by the kernel? */
log_warning("rtnl: ignoring empty message");
return 0;
}
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
if (cmsg->cmsg_level == SOL_SOCKET &&