diff options
Diffstat (limited to 'src/ntp_server.c')
| -rw-r--r-- | src/ntp_server.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/src/ntp_server.c b/src/ntp_server.c deleted file mode 100644 index f31a2d845..000000000 --- a/src/ntp_server.c +++ /dev/null @@ -1,131 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "ntp_server.h" -#include "udp_server.h" - -#include <glib.h> -#include <assert.h> -#include <stddef.h> -#include <stdint.h> -#include <string.h> -#include <unistd.h> -#include <sys/time.h> - -#ifdef WIN32 -#include <ws2tcpip.h> -#include <winsock.h> -#else -#include <sys/socket.h> -#endif - -/* - * Calculate the current NTP time, store it in the buffer. - */ -static void -fill_int(unsigned char *buffer, uint32_t value) -{ - uint32_t be = GINT32_TO_BE(value); - memcpy(buffer, &be, sizeof(be)); -} - -/* - * Store time in the NTP format in the buffer - */ -static void -fill_time_buffer_with_time(unsigned char *buffer, struct timeval *tout) -{ - unsigned long secs_to_baseline = 964697997; - double fraction; - unsigned long long_fraction; - unsigned long secs; - - fraction = ((double) tout->tv_usec) / 1000000.0; - long_fraction = (unsigned long) (fraction * 256.0 * 256.0 * 256.0 * 256.0); - secs = secs_to_baseline + tout->tv_sec; - fill_int(buffer, secs); - fill_int(buffer + 4, long_fraction); -} - -/* - * Calculate the current NTP time, store it in the buffer. - */ -static void -fill_time_buffer(unsigned char *buffer) -{ - struct timeval current_time; - - gettimeofday(¤t_time,NULL); - fill_time_buffer_with_time(buffer, ¤t_time); -} - -static void -ntp_server_datagram(int fd, const void *data, size_t num_bytes, - const struct sockaddr *source_address, - size_t source_address_length, G_GNUC_UNUSED void *ctx) -{ - unsigned char buf[32]; - int iter; - - if (num_bytes > sizeof(buf)) - num_bytes = sizeof(buf); - memcpy(buf, data, num_bytes); - - fill_time_buffer(buf + 16); - // set to response - buf[1] = 0xd3; - // copy request - for (iter = 0; iter < 8; iter++) { - buf[8 + iter] = buf[24 + iter]; - } - fill_time_buffer(buf + 24); - - sendto(fd, (void *)buf, num_bytes, 0, - source_address, source_address_length); -} - -static const struct udp_server_handler ntp_server_handler = { - .datagram = ntp_server_datagram, -}; - -void -ntp_server_init(struct ntp_server *ntp) -{ - ntp->port = 6002; - ntp->udp = NULL; -} - -bool -ntp_server_open(struct ntp_server *ntp, GError **error_r) -{ - assert(ntp->udp == NULL); - - ntp->udp = udp_server_new(ntp->port, &ntp_server_handler, ntp, - error_r); - return ntp->udp != NULL; -} - -void -ntp_server_close(struct ntp_server *ntp) -{ - if (ntp->udp != NULL) { - udp_server_free(ntp->udp); - ntp->udp = NULL; - } -} |