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configure: check for struct in_pktinfo with ipi_spec_dst

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On NetBSD there is a struct in_pktinfo, but it doesn't have the
ipi_spec_dst field and it breaks compilation.
This commit is contained in:
Miroslav Lichvar 2015-10-12 11:44:21 +02:00
parent d6b6461658
commit 55dbbab5eb
2 changed files with 10 additions and 3 deletions
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7
configure vendored
View file

@ -519,6 +519,13 @@ if test_code '<inttypes.h>' 'inttypes.h' '' '' ''; then
add_def HAVE_INTTYPES_H
fi
if test_code 'struct in_pktinfo' 'sys/socket.h netinet/in.h' '' '' '
struct in_pktinfo ipi;
return sizeof (ipi.ipi_spec_dst.s_addr) + IP_PKTINFO;'
then
add_def HAVE_IN_PKTINFO
fi
if [ $feat_ipv6 = "1" ] && \
test_code 'IPv6 support' 'arpa/inet.h sys/socket.h netinet/in.h' '' "$EXTRA_LIBS" '
struct sockaddr_in6 n;

6
ntp_io.c
View file

@ -189,7 +189,7 @@ prepare_socket(int family, int port_number, int client_only)
#endif
if (family == AF_INET) {
#ifdef IP_PKTINFO
#ifdef HAVE_IN_PKTINFO
/* We want the local IP info on server sockets */
if (setsockopt(sock_fd, IPPROTO_IP, IP_PKTINFO, (char *)&on_off, sizeof(on_off)) < 0) {
LOG(LOGS_ERR, LOGF_NtpIO, "Could not set packet info socket option");
@ -533,7 +533,7 @@ read_from_socket(void *anything)
local_addr.sock_fd = sock_fd;
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
#ifdef IP_PKTINFO
#ifdef HAVE_IN_PKTINFO
if (cmsg->cmsg_level == IPPROTO_IP && cmsg->cmsg_type == IP_PKTINFO) {
struct in_pktinfo ipi;
@ -631,7 +631,7 @@ send_packet(void *packet, int packetlen, NTP_Remote_Address *remote_addr, NTP_Lo
msg.msg_flags = 0;
cmsglen = 0;
#ifdef IP_PKTINFO
#ifdef HAVE_IN_PKTINFO
if (local_addr->ip_addr.family == IPADDR_INET4) {
struct cmsghdr *cmsg;
struct in_pktinfo *ipi;