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address request by miri64 (interface as shell param)

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This commit is contained in:
Michel Rottleuthner 2018-01-14 16:55:14 +01:00
parent 3056104187
commit bbd8d67bf9
1 changed files with 31 additions and 6 deletions
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37
sys/shell/commands/sc_sntp.c
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@ -31,7 +31,7 @@
static void _usage(char *cmd)
{
printf("Usage: %s <server addr> [<timeout>]\n", cmd);
printf("Usage: %s <server addr>[%%<interface>] [<timeout>]\n", cmd);
puts("default: timeout = 5000");
}
@ -44,12 +44,37 @@ int _ntpdate(int argc, char **argv)
return 1;
}
sock_udp_ep_t server = { .port = NTP_PORT, .family = AF_INET6 };
ipv6_addr_from_str((ipv6_addr_t *)&server.addr, argv[1]);
ipv6_addr_t *addr = (ipv6_addr_t *)&server.addr;
if (ipv6_addr_is_link_local((ipv6_addr_t *)&server.addr)) {
/* choose first interface when address is link local */
gnrc_netif_t *netif = gnrc_netif_iter(NULL);
server.netif = (uint16_t)netif->pid;
int src_iface = ipv6_addr_split_iface(argv[1]);
if (src_iface == -1) {
src_iface = KERNEL_PID_UNDEF;
}
if (ipv6_addr_from_str(addr, argv[1]) == NULL) {
puts("error: malformed address");
return 1;
}
if (ipv6_addr_is_link_local(addr) || (src_iface != KERNEL_PID_UNDEF)) {
size_t ifnum = gnrc_netif_numof();
if (src_iface == KERNEL_PID_UNDEF) {
if (ifnum == 1) {
src_iface = gnrc_netif_iter(NULL)->pid;
}
else {
puts("error: link local target needs interface parameter (use \"<address>%<ifnum>\")\n");
return 1;
}
}
else {
if (gnrc_netif_get_by_pid(src_iface) == NULL) {
printf("error: %"PRIkernel_pid" is not a valid interface.\n", src_iface);
return 1;
}
}
server.netif = src_iface;
}
if (argc > 2) {