From: Harlan Stenn Date: Fri, 27 Apr 2012 22:02:14 +0000 (-0700) Subject: [Bug 1744] Remove obsolete ntpdate/ntptime* items X-Git-Tag: NTP_4_2_7P275~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ecd632c3b04d1fb0e894771103258aa6e8c4d2f0;p=thirdparty%2Fntp.git [Bug 1744] Remove obsolete ntpdate/ntptime* items bk: 4f9b1766k7BeWmVhehR1_COpDZaQqg --- diff --git a/ChangeLog b/ChangeLog index 04d55cad3..16412a9ec 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,4 @@ +* [Bug 1744] Remove obsolete ntpdate/ntptime* items. (4.2.7p274) 2012/04/25 Released by Harlan Stenn * [Bug 2174] ntpd rejects source UDP ports less than 123 as bogus. (4.2.7p273) 2012/04/19 Released by Harlan Stenn diff --git a/ntpdate/Makefile.am b/ntpdate/Makefile.am index 12bf77098..3b38d3eb0 100644 --- a/ntpdate/Makefile.am +++ b/ntpdate/Makefile.am @@ -7,9 +7,7 @@ bin_PROGRAMS = $(NTPDATE_DB) libexec_PROGRAMS = $(NTPDATE_DL) sbin_PROGRAMS = $(NTPDATE_DS) -EXTRA_PROGRAMS = ntpdate ntptimeset - -ntptimeset_SOURCES = ntptimeset.c ntptime_config.c +EXTRA_PROGRAMS = ntpdate AM_CFLAGS = $(CFLAGS_NTP) diff --git a/ntpdate/ntptime_config.c b/ntpdate/ntptime_config.c deleted file mode 100644 index 78fc461ae..000000000 --- a/ntpdate/ntptime_config.c +++ /dev/null @@ -1,550 +0,0 @@ -/* - * ntptime_config.c - * - * What follows is a simplified version of the config parsing code - * in ntpd/ntp_config.c. We only parse a subset of the configuration - * syntax, and don't bother whining about things we don't understand. - * - */ - -#ifdef HAVE_CONFIG_H -# include -#endif - -#include "ntp_fp.h" -#include "ntp.h" -#include "ntp_io.h" -#include "ntp_unixtime.h" -#include "ntp_filegen.h" -#include "ntpdate.h" -#include "ntp_syslog.h" -#include "ntp_stdlib.h" - -#include -#include -#include - -/* - * These routines are used to read the configuration file at - * startup time. An entry in the file must fit on a single line. - * Entries are processed as multiple tokens separated by white space - * Lines are considered terminated when a '#' is encountered. Blank - * lines are ignored. - */ - -/* - * Configuration file name - */ -#ifndef CONFIG_FILE -# ifndef SYS_WINNT -# define CONFIG_FILE "/etc/ntp.conf" -# else /* SYS_WINNT */ -# define CONFIG_FILE "%windir%\\ntp.conf" -# define ALT_CONFIG_FILE "%windir%\\ntp.ini" -# endif /* SYS_WINNT */ -#endif /* not CONFIG_FILE */ - -/* - * - * We understand the following configuration entries and defaults. - * - * peer [ addr ] [ version 3 ] [ key 0 ] [ minpoll 6 ] [ maxpoll 10 ] - * server [ addr ] [ version 3 ] [ key 0 ] [ minpoll 6 ] [ maxpoll 10 ] - * keys file_name - */ - -#define CONFIG_UNKNOWN 0 - -#define CONFIG_PEER 1 -#define CONFIG_SERVER 2 -#define CONFIG_KEYS 8 - -#define CONF_MOD_VERSION 1 -#define CONF_MOD_KEY 2 -#define CONF_MOD_MINPOLL 3 -#define CONF_MOD_MAXPOLL 4 -#define CONF_MOD_PREFER 5 -#define CONF_MOD_BURST 6 -#define CONF_MOD_SKEY 7 -#define CONF_MOD_TTL 8 -#define CONF_MOD_MODE 9 - -/* - * Translation table - keywords to function index - */ -struct keyword { - const char *text; - int keytype; -}; - -/* - * Command keywords - */ -static struct keyword keywords[] = { - { "peer", CONFIG_PEER }, - { "server", CONFIG_SERVER }, - { "keys", CONFIG_KEYS }, - { "", CONFIG_UNKNOWN } -}; - -/* - * "peer", "server", "broadcast" modifier keywords - */ -static struct keyword mod_keywords[] = { - { "version", CONF_MOD_VERSION }, - { "key", CONF_MOD_KEY }, - { "minpoll", CONF_MOD_MINPOLL }, - { "maxpoll", CONF_MOD_MAXPOLL }, - { "prefer", CONF_MOD_PREFER }, - { "burst", CONF_MOD_BURST }, - { "autokey", CONF_MOD_SKEY }, - { "mode", CONF_MOD_MODE }, /* reference clocks */ - { "ttl", CONF_MOD_TTL }, /* NTP peers */ - { "", CONFIG_UNKNOWN } -}; - -/* - * Limits on things - */ -#define MAXTOKENS 20 /* 20 tokens on line */ -#define MAXLINE 1024 /* maximum length of line */ -#define MAXFILENAME 128 /* maximum length of a file name (alloca()?) */ - -/* - * Miscellaneous macros - */ -#define STRSAME(s1, s2) (*(s1) == *(s2) && strcmp((s1), (s2)) == 0) -#define ISEOL(c) ((c) == '#' || (c) == '\n' || (c) == '\0') -#define ISSPACE(c) ((c) == ' ' || (c) == '\t') -#define STREQ(a, b) (*(a) == *(b) && strcmp((a), (b)) == 0) - -/* - * Systemwide parameters and flags - */ -extern struct server **sys_servers; /* the server list */ -extern int sys_numservers; /* number of servers to poll */ -extern char *key_file; - -/* - * Function prototypes - */ -static int gettokens P((FILE *, char *, char **, int *)); -static int matchkey P((char *, struct keyword *)); -static int getnetnum P((const char *num, struct sockaddr_in *addr, - int complain)); - - -/* - * loadservers - load list of NTP servers from configuration file - */ -void -loadservers( - char *cfgpath - ) -{ - register int i; - int errflg; - int peerversion; - int minpoll; - int maxpoll; - /* int ttl; */ - int srvcnt; - /* u_long peerkey; */ - int peerflags; - struct sockaddr_in peeraddr; - FILE *fp; - char line[MAXLINE]; - char *(tokens[MAXTOKENS]); - int ntokens; - int tok; - const char *config_file; -#ifdef SYS_WINNT - char *alt_config_file; - LPTSTR temp; - char config_file_storage[MAX_PATH]; - char alt_config_file_storage[MAX_PATH]; -#endif /* SYS_WINNT */ - struct server *server, *srvlist; - - /* - * Initialize, initialize - */ - srvcnt = 0; - srvlist = 0; - errflg = 0; -#ifdef DEBUG - debug = 0; -#endif /* DEBUG */ -#ifndef SYS_WINNT - config_file = cfgpath ? cfgpath : CONFIG_FILE; -#else - if (cfgpath) { - config_file = cfgpath; - } else { - temp = CONFIG_FILE; - if (!ExpandEnvironmentStrings((LPCTSTR)temp, (LPTSTR)config_file_storage, (DWORD)sizeof(config_file_storage))) { - msyslog(LOG_ERR, "ExpandEnvironmentStrings CONFIG_FILE failed: %m\n"); - exit(1); - } - config_file = config_file_storage; - } - - temp = ALT_CONFIG_FILE; - if (!ExpandEnvironmentStrings((LPCTSTR)temp, (LPTSTR)alt_config_file_storage, (DWORD)sizeof(alt_config_file_storage))) { - msyslog(LOG_ERR, "ExpandEnvironmentStrings ALT_CONFIG_FILE failed: %m\n"); - exit(1); - } - alt_config_file = alt_config_file_storage; -M -#endif /* SYS_WINNT */ - - if ((fp = fopen(FindConfig(config_file), "r")) == NULL) - { - fprintf(stderr, "getconfig: Couldn't open <%s>\n", FindConfig(config_file)); - msyslog(LOG_INFO, "getconfig: Couldn't open <%s>", FindConfig(config_file)); -#ifdef SYS_WINNT - /* Under WinNT try alternate_config_file name, first NTP.CONF, then NTP.INI */ - - if ((fp = fopen(FindConfig(alt_config_file), "r")) == NULL) { - - /* - * Broadcast clients can sometimes run without - * a configuration file. - */ - - fprintf(stderr, "getconfig: Couldn't open <%s>\n", FindConfig(alt_config_file)); - msyslog(LOG_INFO, "getconfig: Couldn't open <%s>", FindConfig(alt_config_file)); - return; - } -#else /* not SYS_WINNT */ - return; -#endif /* not SYS_WINNT */ - } - - while ((tok = gettokens(fp, line, tokens, &ntokens)) - != CONFIG_UNKNOWN) { - switch(tok) { - case CONFIG_PEER: - case CONFIG_SERVER: - - if (ntokens < 2) { - msyslog(LOG_ERR, - "No address for %s, line ignored", - tokens[0]); - break; - } - - if (!getnetnum(tokens[1], &peeraddr, 1)) { - /* Resolve now, or lose! */ - break; - } else { - errflg = 0; - - /* Shouldn't be able to specify multicast */ - if (IN_CLASSD(ntohl(peeraddr.sin_addr.s_addr)) - || ISBADADR(&peeraddr)) { - msyslog(LOG_ERR, - "attempt to configure invalid address %s", - ntoa(&peeraddr)); - break; - } - } - - peerversion = NTP_VERSION; - minpoll = NTP_MINDPOLL; - maxpoll = NTP_MAXDPOLL; - /* peerkey = 0; */ - peerflags = 0; - /* ttl = 0; */ - for (i = 2; i < ntokens; i++) - switch (matchkey(tokens[i], mod_keywords)) { - case CONF_MOD_VERSION: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "peer/server version requires an argument"); - errflg = 1; - break; - } - peerversion = atoi(tokens[++i]); - if ((u_char)peerversion > NTP_VERSION - || (u_char)peerversion < NTP_OLDVERSION) { - msyslog(LOG_ERR, - "inappropriate version number %s, line ignored", - tokens[i]); - errflg = 1; - } - break; - - case CONF_MOD_KEY: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "key: argument required"); - errflg = 1; - break; - } - ++i; - /* peerkey = (int)atol(tokens[i]); */ - peerflags |= FLAG_AUTHENABLE; - break; - - case CONF_MOD_MINPOLL: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "minpoll: argument required"); - errflg = 1; - break; - } - minpoll = atoi(tokens[++i]); - if (minpoll < NTP_MINPOLL) - minpoll = NTP_MINPOLL; - break; - - case CONF_MOD_MAXPOLL: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "maxpoll: argument required" - ); - errflg = 1; - break; - } - maxpoll = atoi(tokens[++i]); - if (maxpoll > NTP_MAXPOLL) - maxpoll = NTP_MAXPOLL; - break; - - case CONF_MOD_PREFER: - peerflags |= FLAG_PREFER; - break; - - case CONF_MOD_BURST: - peerflags |= FLAG_BURST; - break; - - case CONF_MOD_SKEY: - peerflags |= FLAG_SKEY | FLAG_AUTHENABLE; - break; - - case CONF_MOD_TTL: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "ttl: argument required"); - errflg = 1; - break; - } - ++i; - /* ttl = atoi(tokens[i]); */ - break; - - case CONF_MOD_MODE: - if (i >= ntokens-1) { - msyslog(LOG_ERR, - "mode: argument required"); - errflg = 1; - break; - } - ++i; - /* ttl = atoi(tokens[i]); */ - break; - - case CONFIG_UNKNOWN: - errflg = 1; - break; - } - if (minpoll > maxpoll) { - msyslog(LOG_ERR, "config error: minpoll > maxpoll"); - errflg = 1; - } - if (errflg == 0) { - server = (struct server *)emalloc(sizeof(struct server)); - memset((char *)server, 0, sizeof(struct server)); - server->srcadr = peeraddr; - server->version = peerversion; - server->dispersion = PEER_MAXDISP; - server->next_server = srvlist; - srvlist = server; - srvcnt++; - } - break; - - case CONFIG_KEYS: - if (ntokens >= 2) - key_file = estrdup(tokens[1]); - break; - } - } - (void) fclose(fp); - - /* build final list */ - sys_numservers = srvcnt; - sys_servers = (struct server **) - emalloc(sys_numservers * sizeof(struct server *)); - for(i=0;inext_server; - } -} - - - -/* - * gettokens - read a line and return tokens - */ -static int -gettokens( - FILE *fp, - char *line, - char **tokenlist, - int *ntokens - ) -{ - register char *cp; - register int eol; - register int ntok; - register int quoted = 0; - - /* - * Find start of first token - */ - again: - while ((cp = fgets(line, MAXLINE, fp)) != NULL) { - cp = line; - while (ISSPACE(*cp)) - cp++; - if (!ISEOL(*cp)) - break; - } - if (cp == NULL) { - *ntokens = 0; - return CONFIG_UNKNOWN; /* hack. Is recognized as EOF */ - } - - /* - * Now separate out the tokens - */ - eol = 0; - ntok = 0; - while (!eol) { - tokenlist[ntok++] = cp; - while (!ISEOL(*cp) && (!ISSPACE(*cp) || quoted)) - quoted ^= (*cp++ == '"'); - - if (ISEOL(*cp)) { - *cp = '\0'; - eol = 1; - } else { /* must be space */ - *cp++ = '\0'; - while (ISSPACE(*cp)) - cp++; - if (ISEOL(*cp)) - eol = 1; - } - if (ntok == MAXTOKENS) - eol = 1; - } - - /* - * Return the match - */ - *ntokens = ntok; - ntok = matchkey(tokenlist[0], keywords); - if (ntok == CONFIG_UNKNOWN) - goto again; - return ntok; -} - - - -/* - * matchkey - match a keyword to a list - */ -static int -matchkey( - register char *word, - register struct keyword *keys - ) -{ - for (;;) { - if (keys->keytype == CONFIG_UNKNOWN) { - return CONFIG_UNKNOWN; - } - if (STRSAME(word, keys->text)) - return keys->keytype; - keys++; - } -} - - -/* - * getnetnum - return a net number (this is crude, but careful) - */ -static int -getnetnum( - const char *num, - struct sockaddr_in *addr, - int complain - ) -{ - register const char *cp; - register char *bp; - register int i; - register int temp; - char buf[80]; /* will core dump on really stupid stuff */ - u_int32 netnum; - - /* XXX ELIMINATE replace with decodenetnum */ - cp = num; - netnum = 0; - for (i = 0; i < 4; i++) { - bp = buf; - while (isdigit((int)*cp)) - *bp++ = *cp++; - if (bp == buf) - break; - - if (i < 3) { - if (*cp++ != '.') - break; - } else if (*cp != '\0') - break; - - *bp = '\0'; - temp = atoi(buf); - if (temp > 255) - break; - netnum <<= 8; - netnum += temp; -#ifdef DEBUG - if (debug > 3) - printf("getnetnum %s step %d buf %s temp %d netnum %lu\n", - num, i, buf, temp, (u_long)netnum); -#endif - } - - if (i < 4) { - if (complain) - msyslog(LOG_ERR, - "getnetnum: \"%s\" invalid host number, line ignored", - num); -#ifdef DEBUG - if (debug > 3) - printf( - "getnetnum: \"%s\" invalid host number, line ignored\n", - num); -#endif - return 0; - } - - /* - * make up socket address. Clear it out for neatness. - */ - memset((void *)addr, 0, sizeof(struct sockaddr_in)); - addr->sin_family = AF_INET; - addr->sin_port = htons(NTP_PORT); - addr->sin_addr.s_addr = htonl(netnum); -#ifdef DEBUG - if (debug > 1) - printf("getnetnum given %s, got %s (%lx)\n", - num, ntoa(addr), (u_long)netnum); -#endif - return 1; -} diff --git a/ntpdate/ntptimeset.c b/ntpdate/ntptimeset.c deleted file mode 100644 index fa622a973..000000000 --- a/ntpdate/ntptimeset.c +++ /dev/null @@ -1,2134 +0,0 @@ -/* - * ntptimeset - get/set the time via ntp - * - * GOAL: - * The goal of ntptime is to set the current time on system startup - * to the best possible time using the network very wisely. It is assumed - * that after a reasonable time has been set then ntp daemon will - * maintain it. - * - * PROBLEM DOMAIN: - * We have three sets of issues related to acheiving the goal. The first - * issue is using the network when normal traffic is happening or when - * the entire network world is recovering from a campus wide power failure - * and is restarting. The second issue is the class of machine whether it - * is a user's office workstation being handled by an uneducated user or - * a server computer being handled by a trained operations staff. The third - * issue is whether the ratio of people to computers and whether the - * environment is stable and viable or not. - * - * NETWORK USAGE: - * The first issue of using the network wisely is a question of whether - * the network load and time server load and state are normal. If things - * are normal ntptime can do what ntpdate does of sending out 4 packets - * quickly to each server (new transmit done with each ack). However - * if network or time load is high then this scheme will simply contribute - * to problems. Given we have minimal state, we simply weight lost packets - * significantly and make sure we throttle output as much as possible - * without performance lost for quick startups. - * - * TRAINING AND KNOWLEDGE: - * The second issue of uneducated user of a office workstation versus a - * trained operation staff of a server machine translates into simply an - * issue of untrained and trained users. - * - * The training issue implies that for the sake of the users involved in the - * handling of their office workstation, problems and options should be - * communicated simply and effectively and not in terse expert related - * descriptions without possible options to be taken. The operator's training - * and education enables them to deal with either type of communication and - * control. - * - * AUTOMATION AND MANUAL CONTROL: - * The last issue boils down to a design problem. If the design tends to go - * into a manual mode when the environment is non-viable then one person - * handling many computers all at the same time will be heavily impacted. On - * the other hand, if the design tends to be automatic and does not indicate - * a way for the user to take over control then the computer will be - * unavailable for the user until the proble is resolved by someone else or - * the user. - * - * NOTE: Please do not have this program print out every minute some line, - * of output. If this happens and the environment is in trouble then - * many pages of paper on many different machines will be filled up. - * Save some trees in your lifetime. - * - * CONCLUSION: - * The behavior of the program derived from these three issues should be - * that during normal situations it quickly sets the time and allow the - * system to startup. - * - * However during abnormal conditions as detected by unresponsive servers, - * out-of-sync or bad responses and other detections, it should print out - * a simple but clear message and continue in a mellow way to get the best - * possible time. It may never get the time and if so should also indicate - * this. - * - * Rudy Nedved - * 18-May-1993 - * - **************************************************************** - * - * Much of the above is confusing or no longer relevant. For example, - * it is rare these days for a machine's console to be a printing terminal, - * so the comment about saving trees doesn't mean much. Nonetheless, - * the basic principles still stand: - * - * - Work automatically, without human control or intervention. To - * this end, we use the same configuration file as ntpd itself, so - * you don't have to specify servers or other information on the - * command line. We also recognize that sometimes we won't be able - * to contact any servers, and give up in that event instead of - * hanging forever. - * - * - Behave in a sane way, both internally and externally, even in the - * face of insane conditions. That means we back off quickly when - * we don't hear a response, to avoid network congestion. Like - * ntpd, we verify responses from several servers before accepting - * the new time data. - * - * However, we don't assume that the local clock is right, or even - * close, because it might not be at boot time, and we want to catch - * and correct that situation. This behaviour has saved us in several - * instances. On HP-UX 9.0x, there used to be a bug in adjtimed which - * would cause the time to be set to some wild value, making the machine - * essentially unusable (we use Kerberos authentication pervasively, - * and it requires workstations and servers to have a time within five - * minutes of the Kerberos server). We also have problems on PC's - * running both Linux and some Microsoft OS -- they tend to disagree - * on what the BIOS clock should say, and who should update it, and - * when. On those systems, we not only run ntptimeset at boot, we - * also reset the BIOS clock based on the result, so the correct - * time will be retained across reboots. - * - * For these reasons, and others, we have continued to use this tool - * rather than ntpdate. It is run automatically at boot time on every - * workstation and server in our facility. - * - * In the past, we called this program 'ntptime'. Unfortunately, the - * ntp v4 distribution also includes a program with that name. In - * order to avoid confusion, we have renamed our program 'ntptimeset', - * which more accurately describes what it does. - * - * Jeffrey T. Hutzelman (N3NHS) - * School of Computer Science - Research Computing Facility - * Carnegie Mellon University - Pittsburgh, PA - * 16-Aug-1999 - * - */ - -#ifdef HAVE_CONFIG_H -# include -#endif - -#include "ntp_machine.h" -#include "ntp_fp.h" -#include "ntp.h" -#include "ntp_io.h" -#include "iosignal.h" -#include "ntp_unixtime.h" -#include "ntpdate.h" -#include "ntp_string.h" -#include "ntp_syslog.h" -#include "ntp_select.h" -#include "ntp_stdlib.h" - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include -#include -#include -#ifndef SYS_WINNT -# ifdef HAVE_SYS_SIGNAL_H -# include -# else -# include -# endif -# include -#endif /* SYS_WINNT */ - -#ifdef HAVE_SYS_RESOURCE_H -# include -#endif /* HAVE_SYS_RESOURCE_H */ - -#ifdef SYS_VXWORKS -# include "ioLib.h" -# include "sockLib.h" -# include "timers.h" -#endif - -#include "recvbuff.h" - -#ifdef SYS_WINNT -# define TARGET_RESOLUTION 1 /* Try for 1-millisecond accuracy - on Windows NT timers. */ -#pragma comment(lib, "winmm") -#endif /* SYS_WINNT */ - -/* - * Scheduling priority we run at - */ -#ifndef SYS_VXWORKS -# define NTPDATE_PRIO (-12) -#else -# define NTPDATE_PRIO (100) -#endif - -#if defined(HAVE_TIMER_SETTIME) || defined (HAVE_TIMER_CREATE) -/* POSIX TIMERS - vxWorks doesn't have itimer - casey */ -static timer_t ntpdate_timerid; -#endif - -/* - * Compatibility stuff for Version 2 - */ -#define NTP_MAXSKW 0x28f /* 0.01 sec in fp format */ -#define NTP_MINDIST 0x51f /* 0.02 sec in fp format */ -#define NTP_INFIN 15 /* max stratum, infinity a la Bellman-Ford */ -#define NTP_MAXWGT (8*FP_SECOND) /* maximum select weight 8 seconds */ -#define NTP_MAXLIST 5 /* maximum select list size */ -#define PEER_SHIFT 8 /* 8 suitable for crystal time base */ - -/* - * File descriptor masks etc. for call to select - */ -int fd; -fd_set fdmask; - -/* - * Initializing flag. All async routines watch this and only do their - * thing when it is clear. - */ -int initializing = 1; - -/* - * Alarm flag. Set when an alarm occurs - */ -volatile int alarm_flag = 0; - -/* - * Set the time if valid time determined - */ -int set_time = 0; - -/* - * transmission rate control - */ -#define MINTRANSMITS (3) /* minimum total packets per server */ -#define MAXXMITCOUNT (2) /* maximum packets per time interrupt */ - -/* - * time setting constraints - */ -#define DESIREDDISP (4*FP_SECOND) /* desired dispersion, (fp 4) */ -int max_period = DEFMAXPERIOD; -int min_servers = DEFMINSERVERS; -int min_valid = DEFMINVALID; - -/* - * counters related to time setting constraints - */ -int contacted = 0; /* # of servers we have sent to */ -int responding = 0; /* servers responding */ -int validcount = 0; /* servers with valid time */ -int valid_n_low = 0; /* valid time servers with low dispersion */ - -/* - * Unpriviledged port flag. - */ -int unpriv_port = 0; - -/* - * Program name. - */ -char *progname; - -/* - * Systemwide parameters and flags - */ -struct server **sys_servers; /* the server list */ -int sys_numservers = 0; /* number of servers to poll */ -int sys_authenticate = 0; /* true when authenticating */ -u_int32 sys_authkey = 0; /* set to authentication key in use */ -u_long sys_authdelay = 0; /* authentication delay */ - -/* - * The current internal time - */ -u_long current_time = 0; - -/* - * File of encryption keys - */ - -#ifndef KEYFILE -# ifndef SYS_WINNT -#define KEYFILE "/etc/ntp.keys" -# else -#define KEYFILE "%windir%\\ntp.keys" -# endif /* SYS_WINNT */ -#endif /* KEYFILE */ - -#ifndef SYS_WINNT -const char *key_file = KEYFILE; -#else -char key_file_storage[MAX_PATH+1], *key_file ; -#endif /* SYS_WINNT */ - -/* - * total packet counts - */ -u_long total_xmit = 0; -u_long total_recv = 0; - -/* - * Miscellaneous flags - */ -int verbose = 0; -#define HORRIBLEOK 3 /* how many packets to let out */ -int horrible = 0; /* how many packets we drop for testing */ -int secondhalf = 0; /* second half of timeout period */ -int printmsg = 0; /* print time response analysis */ - -/* - * The half time and finish time in internal time - */ -u_long half_time = 0; -u_long finish_time = 0; - - -int ntptimesetmain P((int argc, char *argv[])); -static void analysis P((int final)); -static int have_enough P((void)); -static void transmit P((register struct server *server)); -static void receive P((struct recvbuf *rbufp)); -static void clock_filter P((register struct server *server, s_fp d, l_fp *c)); -static void clock_count P((void)); -static struct server *clock_select P((void)); -static void set_local_clock P((void)); -static struct server *findserver P((struct sockaddr_in *addr)); -static void timer P((void)); -#ifndef SYS_WINNT -static RETSIGTYPE alarming P((int sig)); -#endif /* SYS_WINNT */ -static void init_alarm P((void)); -static void init_io P((void)); -static int sendpkt P((struct sockaddr_in *dest, struct pkt *pkt, int len)); - void input_handler P((l_fp *xts)); -static void printserver P((register struct server *pp, FILE *fp)); - -#ifdef HAVE_SIGNALED_IO -extern void wait_for_signal P((void)); -extern void unblock_io_and_alarm P((void)); -extern void block_io_and_alarm P((void)); -#endif - - -#ifdef NO_MAIN_ALLOWED -CALL(ntptimeset,"ntptimeset",ntptimesetmain); - -void clear_globals() -{ - /* - * Debugging flag - */ - debug = 0; - - ntp_optind = 0; - - /* - * Initializing flag. All async routines watch this and only do their - * thing when it is clear. - */ - initializing = 1; - - /* - * Alarm flag. Set when an alarm occurs - */ - alarm_flag = 0; - - /* - * Unpriviledged port flag. - */ - unpriv_port = 0; - - /* - * Systemwide parameters and flags - */ - sys_numservers = 0; /* number of servers to poll */ - sys_authenticate = 0; /* true when authenticating */ - sys_authkey = 0; /* set to authentication key in use */ - sys_authdelay = 0; /* authentication delay */ - - /* - * The current internal time - */ - current_time = 0; - - verbose = 0; -} -#endif /* NO_MAIN_ALLOWED */ - -/* - * Main program. Initialize us and loop waiting for I/O and/or - * timer expiries. - */ -#ifndef NO_MAIN_ALLOWED -int -main( - int argc, - char *argv[] - ) -{ - return ntptimesetmain(argc, argv); -} -#endif /* NO_MAIN_ALLOWED */ - - -int -ntptimesetmain( - int argc, - char *argv[] - ) -{ - int was_alarmed; - int tot_recvbufs; - struct recvbuf *rbuf; - l_fp tmp; - int errflg; - int c; - extern char *ntp_optarg; - extern int ntp_optind; - int ltmp; - char *cfgpath; - -#ifdef SYS_WINNT - HANDLE process_handle; - - wVersionRequested = MAKEWORD(1,1); - if (WSAStartup(wVersionRequested, &wsaData)) { - msyslog(LOG_ERR, "No useable winsock.dll: %m"); - exit(1); - } -#endif /* SYS_WINNT */ - -#ifdef NO_MAIN_ALLOWED - clear_globals(); -#endif - - errflg = 0; - cfgpath = 0; - progname = argv[0]; - syslogit = 0; - - /* - * Decode argument list - */ - while ((c = ntp_getopt(argc, argv, "a:c:de:slt:uvHS:V:")) != EOF) - switch (c) - { - case 'a': - c = atoi(ntp_optarg); - sys_authenticate = 1; - sys_authkey = c; - break; - case 'c': - cfgpath = ntp_optarg; - break; - case 'd': - ++debug; - break; - case 'e': - if (!atolfp(ntp_optarg, &tmp) - || tmp.l_ui != 0) { - (void) fprintf(stderr, - "%s: encryption delay %s is unlikely\n", - progname, ntp_optarg); - errflg++; - } else { - sys_authdelay = tmp.l_uf; - } - break; - case 's': - set_time = 1; - break; - case 'l': - syslogit = 1; - break; - case 't': - ltmp = atoi(ntp_optarg); - if (ltmp <= 0) { - (void) fprintf(stderr, - "%s: maximum time period (%d) is invalid\n", - progname, ltmp); - errflg++; - } - else - max_period = ltmp; - break; - case 'u': - unpriv_port = 1; - break; - case 'v': - ++verbose; - break; - case 'H': - horrible++; - break; - case 'S': - ltmp = atoi(ntp_optarg); - if (ltmp <= 0) { - (void) fprintf(stderr, - "%s: minimum responding (%d) is invalid\n", - progname, ltmp); - errflg++; - } - else - min_servers = ltmp; - break; - case 'V': - ltmp = atoi(ntp_optarg); - if (ltmp <= 0) { - (void) fprintf(stderr, - "%s: minimum valid (%d) is invalid\n", - progname, ltmp); - errflg++; - } - else - min_valid = ltmp; - break; - case '?': - ++errflg; - break; - default: - break; - } - - - if (errflg || ntp_optind < argc) { - fprintf(stderr,"usage: %s [switches...]\n",progname); - fprintf(stderr," -v (verbose)\n"); - fprintf(stderr," -c path (set config file path)\n"); - fprintf(stderr," -a key (authenticate using key)\n"); - fprintf(stderr," -e delay (authentication delay)\n"); - fprintf(stderr," -S num (# of servers that must respond)\n"); - fprintf(stderr," -V num (# of servers that must valid)\n"); - fprintf(stderr," -s (set the time based if okay)\n"); - fprintf(stderr," -t secs (time period before ending)\n"); - fprintf(stderr," -l (use syslog facility)\n"); - fprintf(stderr," -u (use unprivileged port)\n"); - fprintf(stderr," -H (drop packets for debugging)\n"); - fprintf(stderr," -d (debug output)\n"); - exit(2); - } - - /* - * Logging. Open the syslog if we have to - */ - if (syslogit) { -#if !defined (SYS_WINNT) && !defined (SYS_VXWORKS) && !defined SYS_CYGWIN32 -# ifndef LOG_DAEMON - openlog("ntptimeset", LOG_PID); -# else - -# ifndef LOG_NTP -# define LOG_NTP LOG_DAEMON -# endif - openlog("ntptimeset", LOG_PID | LOG_NDELAY, LOG_NTP); - if (debug) - setlogmask(LOG_UPTO(LOG_DEBUG)); - else - setlogmask(LOG_UPTO(LOG_INFO)); -# endif /* LOG_DAEMON */ -#endif /* SYS_WINNT */ - } - - if (debug || verbose) - msyslog(LOG_INFO, "%s", Version); - - if (horrible) - msyslog(LOG_INFO, "Dropping %d out of %d packets", - horrible,horrible+HORRIBLEOK); - /* - * Add servers we are going to be polling - */ - loadservers(cfgpath); - - if (sys_numservers < min_servers) { - msyslog(LOG_ERR, "Found %d servers, require %d servers", - sys_numservers,min_servers); - exit(2); - } - - /* - * determine when we will end at least - */ - finish_time = max_period * TIMER_HZ; - half_time = finish_time >> 1; - - /* - * Initialize the time of day routines and the I/O subsystem - */ - if (sys_authenticate) { - init_auth(); -#ifdef SYS_WINNT - if (!key_file) key_file = KEYFILE; - if (!ExpandEnvironmentStrings(key_file, key_file_storage, MAX_PATH)) - { - msyslog(LOG_ERR, "ExpandEnvironmentStrings(%s) failed: %m\n", - key_file); - } else { - key_file = key_file_storage; - } -#endif /* SYS_WINNT */ - - if (!authreadkeys(key_file)) { - msyslog(LOG_ERR, "no key file, exiting"); - exit(1); - } - if (!authistrusted(sys_authkey)) { - msyslog(LOG_ERR, "authentication key %lu unknown", - (u_long)sys_authkey); - exit(1); - } - } - init_io(); - init_alarm(); - - /* - * Set the priority. - */ -#ifdef SYS_VXWORKS - taskPrioritySet( taskIdSelf(), NTPDATE_PRIO); -#endif -#if defined(HAVE_ATT_NICE) - nice (NTPDATE_PRIO); -#endif -#if defined(HAVE_BSD_NICE) - (void) setpriority(PRIO_PROCESS, 0, NTPDATE_PRIO); -#endif -#ifdef SYS_WINNT - process_handle = GetCurrentProcess(); - if (!SetPriorityClass(process_handle, (DWORD) REALTIME_PRIORITY_CLASS)) { - msyslog(LOG_ERR, "SetPriorityClass failed: %m"); - } -#endif /* SYS_WINNT */ - - initializing = 0; - - /* - * Use select() on all on all input fd's for unlimited - * time. select() will terminate on SIGALARM or on the - * reception of input. Using select() means we can't do - * robust signal handling and we get a potential race - * between checking for alarms and doing the select(). - * Mostly harmless, I think. - * Keep going until we have enough information, or time is up. - */ - /* On VMS, I suspect that select() can't be interrupted - * by a "signal" either, so I take the easy way out and - * have select() time out after one second. - * System clock updates really aren't time-critical, - * and - lacking a hardware reference clock - I have - * yet to learn about anything else that is. - */ - was_alarmed = 0; - while (finish_time > current_time) { -#if !defined(HAVE_SIGNALED_IO) - fd_set rdfdes; - int nfound; -#elif defined(HAVE_SIGNALED_IO) - block_io_and_alarm(); -#endif - - tot_recvbufs = full_recvbuffs(); /* get received buffers */ - if (printmsg) { - printmsg = 0; - analysis(0); - } - if (alarm_flag) { /* alarmed? */ - was_alarmed = 1; - alarm_flag = 0; - } - - if (!was_alarmed && tot_recvbufs > 0) { - /* - * Nothing to do. Wait for something. - */ -#ifndef HAVE_SIGNALED_IO - rdfdes = fdmask; -# if defined(VMS) || defined(SYS_VXWORKS) - /* make select() wake up after one second */ - { - struct timeval t1; - - t1.tv_sec = 1; t1.tv_usec = 0; - nfound = select(fd+1, &rdfdes, (fd_set *)0, - (fd_set *)0, &t1); - } -# else - nfound = select(fd+1, &rdfdes, (fd_set *)0, - (fd_set *)0, (struct timeval *)0); -# endif /* VMS */ - if (nfound > 0) { - l_fp ts; - get_systime(&ts); - (void)input_handler(&ts); - } - else if (nfound == -1 && errno != EINTR) - msyslog(LOG_ERR, "select() error: %m"); - else if (debug) { -# if !defined SYS_VXWORKS && !defined SYS_CYGWIN32 /* to unclutter log */ - msyslog(LOG_DEBUG, "select(): nfound=%d, error: %m", nfound); -# endif - } -#else /* HAVE_SIGNALED_IO */ - - wait_for_signal(); -#endif /* HAVE_SIGNALED_IO */ - if (alarm_flag) /* alarmed? */ - { - was_alarmed = 1; - alarm_flag = 0; - } - tot_recvbufs = full_recvbuffs(); /* get received buffers */ - } -#ifdef HAVE_SIGNALED_IO - unblock_io_and_alarm(); -#endif /* HAVE_SIGNALED_IO */ - - /* - * Out here, signals are unblocked. Call timer routine - * to process expiry. - */ - if (was_alarmed) - { - timer(); - was_alarmed = 0; - } - - /* - * Call the data procedure to handle each received - * packet. - */ - rbuf = get_full_recv_buffer(); - while (rbuf != NULL) - { - receive(rbuf); - freerecvbuf(rbuf); - rbuf = get_full_recv_buffer(); - } - - /* - * Do we have enough information to stop now? - */ - if (have_enough()) - break; /* time to end */ - - /* - * Go around again - */ - } - - /* - * adjust the clock and exit accordingly - */ - set_local_clock(); - - /* - * if we get here then we are in trouble - */ - return(1); -} - - -/* - * analysis - print a message indicating what is happening with time service - * must mimic have_enough() procedure. - */ -static void -analysis( - int final - ) -{ - if (contacted < sys_numservers) { - printf("%d servers of %d have been probed with %d packets\n", - contacted,sys_numservers,MINTRANSMITS); - return; - } - if (!responding) { - printf("No response from any of %d servers, network problem?\n", - sys_numservers); - return; - } - else if (responding < min_servers) { - printf("%d servers out of %d responding, need at least %d.\n", - responding, sys_numservers, min_servers); - return; - } - if (!validcount) { - printf("%d servers responding but none have valid time\n", - responding); - return; - } - else if (validcount < min_valid) { - printf("%d servers responding, %d are valid, need %d valid\n", - responding,validcount,min_valid); - return; - } - if (!final && valid_n_low != validcount) { - printf("%d valid servers but only %d have low dispersion\n", - validcount,valid_n_low); - return; - } -} - - -/* have_enough - see if we have enough information to terminate probing - */ -static int -have_enough(void) -{ - /* have we contacted all servers yet? */ - if (contacted < sys_numservers) - return 0; /* no...try some more */ - - /* have we got at least minimum servers responding? */ - if (responding < min_servers) - return 0; /* no...try some more */ - - /* count the clocks */ - (void) clock_count(); - - /* have we got at least minimum valid clocks? */ - if (validcount <= 0 || validcount < min_valid) - return 0; /* no...try some more */ - - /* do we have all valid servers with low dispersion */ - if (!secondhalf && valid_n_low != validcount) - return 0; - - /* if we get into the secondhalf then we ignore dispersion */ - - /* all conditions have been met...end */ - return 1; -} - - -/* - * transmit - transmit a packet to the given server, or mark it completed. - * This is called by the timeout routine and by the receive - * procedure. - */ -static void -transmit( - register struct server *server - ) -{ - struct pkt xpkt; - int timeout; - - if (debug > 2) - printf("transmit(%s)\n", ntoa(&server->srcadr)); - - if ((server->reach & 01) == 0) { - l_fp ts; - /* - * Last message to this server timed out. Shift - * zeros into the filter. - */ - L_CLR(&ts); - clock_filter(server, 0, &ts); - } - - /* - * shift reachable register over - */ - server->reach <<= 1; - - /* - * If we're here, send another message to the server. Fill in - * the packet and let 'er rip. - */ - xpkt.li_vn_mode = PKT_LI_VN_MODE(LEAP_NOTINSYNC, - server->version, MODE_CLIENT); - xpkt.stratum = STRATUM_TO_PKT(STRATUM_UNSPEC); - xpkt.ppoll = NTP_MINPOLL; - xpkt.precision = NTPDATE_PRECISION; - xpkt.rootdelay = htonl(NTPDATE_DISTANCE); - xpkt.rootdispersion = htonl(NTPDATE_DISP); - xpkt.refid = htonl(NTPDATE_REFID); - L_CLR(&xpkt.reftime); - L_CLR(&xpkt.org); - L_CLR(&xpkt.rec); - - /* - * Determine whether to authenticate or not. If so, - * fill in the extended part of the packet and do it. - * If not, just timestamp it and send it away. - */ - if (sys_authenticate) { - int len; - - xpkt.exten[0] = htonl(sys_authkey); - get_systime(&server->xmt); - L_ADDUF(&server->xmt, sys_authdelay); - HTONL_FP(&server->xmt, &xpkt.xmt); - len = authencrypt(sys_authkey, (u_int32 *)&xpkt, LEN_PKT_NOMAC); - if (sendpkt(&(server->srcadr), &xpkt, (int)(LEN_PKT_NOMAC + len))) { - if (debug > 1) - printf("failed transmit auth to %s\n", - ntoa(&(server->srcadr))); - return; - } - - if (debug > 1) - printf("transmit auth to %s\n", - ntoa(&(server->srcadr))); - } else { - get_systime(&(server->xmt)); - HTONL_FP(&server->xmt, &xpkt.xmt); - if (sendpkt(&(server->srcadr), &xpkt, LEN_PKT_NOMAC)) { - if (debug > 1) - printf("failed transmit to %s\n", - ntoa(&(server->srcadr))); - return; - } - - if (debug > 1) - printf("transmit to %s\n", ntoa(&(server->srcadr))); - } - - /* - * count transmits, record contacted count and set transmit time - */ - if (++server->xmtcnt == MINTRANSMITS) - contacted++; - server->last_xmit = current_time; - - /* - * determine timeout for this packet. The more packets we send - * to the host, the slower we get. If the host indicates that - * it is not "sane" then we expect even less. - */ - if (server->xmtcnt < MINTRANSMITS) { - /* we have not sent enough */ - timeout = TIMER_HZ; /* 1 second probe */ - } - else if (server->rcvcnt <= 0) { - /* we have heard nothing */ - if (secondhalf) - timeout = TIMER_HZ<<4; /* 16 second probe */ - else - timeout = TIMER_HZ<<3; /* 8 second probe */ - } - else { - /* if we have low dispersion then probe infrequently */ - if (server->dispersion <= DESIREDDISP) - timeout = TIMER_HZ<<4; /* 16 second probe */ - /* if the server is not in sync then let it alone */ - else if (server->leap == LEAP_NOTINSYNC) - timeout = TIMER_HZ<<4; /* 16 second probe */ - /* if the server looks broken ignore it */ - else if (server->org.l_ui < server->reftime.l_ui) - timeout = TIMER_HZ<<5; /* 32 second probe */ - else if (secondhalf) - timeout = TIMER_HZ<<2; /* 4 second probe */ - else - timeout = TIMER_HZ<<1; /* 2 second probe */ - } - - /* - * set next transmit time based on timeout - */ - server->event_time = current_time + timeout; -} - - -/* - * receive - receive and process an incoming frame - */ -static void -receive( - struct recvbuf *rbufp - ) -{ - register struct pkt *rpkt; - register struct server *server; - register s_fp di; - l_fp t10, t23; - l_fp org; - l_fp rec; - l_fp ci; - int has_mac; - int is_authentic; - - if (debug > 2) - printf("receive(%s)\n", ntoa(&rbufp->srcadr)); - /* - * Check to see if the packet basically looks like something - * intended for us. - */ - if (rbufp->recv_length == LEN_PKT_NOMAC) - has_mac = 0; - else if (rbufp->recv_length >= LEN_PKT_NOMAC) - has_mac = 1; - else { - if (debug > 2) - printf("receive: packet length %d\n", - rbufp->recv_length); - return; /* funny length packet */ - } - - rpkt = &(rbufp->recv_pkt); - if (PKT_VERSION(rpkt->li_vn_mode) < NTP_OLDVERSION || - PKT_VERSION(rpkt->li_vn_mode) > NTP_VERSION) { - if (debug > 1) - printf("receive: bad version %d\n", - PKT_VERSION(rpkt->li_vn_mode)); - return; - } - - if ((PKT_MODE(rpkt->li_vn_mode) != MODE_SERVER - && PKT_MODE(rpkt->li_vn_mode) != MODE_PASSIVE) - || rpkt->stratum >=STRATUM_UNSPEC) { - if (debug > 1) - printf("receive: mode %d stratum %d\n", - PKT_MODE(rpkt->li_vn_mode), rpkt->stratum); - return; - } - - /* - * So far, so good. See if this is from a server we know. - */ - server = findserver(&(rbufp->srcadr)); - if (server == NULL) { - if (debug > 1) - printf("receive: server not found\n"); - return; - } - - /* - * Decode the org timestamp and make sure we're getting a response - * to our last request. - */ - NTOHL_FP(&rpkt->org, &org); - if (!L_ISEQU(&org, &server->xmt)) { - if (debug > 1) - printf("receive: pkt.org and peer.xmt differ\n"); - return; - } - - /* - * Check out the authenticity if we're doing that. - */ - if (!sys_authenticate) - is_authentic = 1; - else { - is_authentic = 0; - - if (debug > 3) - printf("receive: rpkt keyid=%ld sys_authkey=%ld decrypt=%ld\n", - (long int)ntohl(rpkt->exten[0]), (long int)sys_authkey, - (long int)authdecrypt(sys_authkey, (u_int32 *)rpkt, - LEN_PKT_NOMAC, (int)(rbufp->recv_length - LEN_PKT_NOMAC))); - - if (has_mac && ntohl(rpkt->exten[0]) == sys_authkey && - authdecrypt(sys_authkey, (u_int32 *)rpkt, LEN_PKT_NOMAC, - (int)(rbufp->recv_length - LEN_PKT_NOMAC))) - is_authentic = 1; - if (debug) - printf("receive: authentication %s\n", - is_authentic ? "passed" : "failed"); - } - server->trust <<= 1; - if (!is_authentic) - server->trust |= 1; - - /* - * Looks good. Record info from the packet. - */ - server->leap = PKT_LEAP(rpkt->li_vn_mode); - server->stratum = PKT_TO_STRATUM(rpkt->stratum); - server->precision = rpkt->precision; - server->rootdelay = ntohl(rpkt->rootdelay); - server->rootdispersion = ntohl(rpkt->rootdispersion); - server->refid = rpkt->refid; - NTOHL_FP(&rpkt->reftime, &server->reftime); - NTOHL_FP(&rpkt->rec, &rec); - NTOHL_FP(&rpkt->xmt, &server->org); - - /* - * count this guy as responding - */ - server->reach |= 1; - if (server->rcvcnt++ == 0) - responding++; - - /* - * Make sure the server is at least somewhat sane. If not, ignore - * it for later. - */ - if (L_ISZERO(&rec) || !L_ISHIS(&server->org, &rec)) { - if (debug > 1) - printf("receive: pkt insane\n"); - return; - } - - /* - * Calculate the round trip delay (di) and the clock offset (ci). - * We use the equations (reordered from those in the spec): - * - * d = (t2 - t3) - (t1 - t0) - * c = ((t2 - t3) + (t1 - t0)) / 2 - */ - t10 = server->org; /* pkt.xmt == t1 */ - L_SUB(&t10, &rbufp->recv_time); /* recv_time == t0*/ - - t23 = rec; /* pkt.rec == t2 */ - L_SUB(&t23, &org); /* pkt->org == t3 */ - - /* now have (t2 - t3) and (t0 - t1). Calculate (ci) and (di) */ - ci = t10; - L_ADD(&ci, &t23); - L_RSHIFT(&ci); - - /* - * Calculate di in t23 in full precision, then truncate - * to an s_fp. - */ - L_SUB(&t23, &t10); - di = LFPTOFP(&t23); - - if (debug > 3) - printf("offset: %s, delay %s\n", lfptoa(&ci, 6), fptoa(di, 5)); - - di += (FP_SECOND >> (-(int)NTPDATE_PRECISION)) - + (FP_SECOND >> (-(int)server->precision)) + NTP_MAXSKW; - - if (di <= 0) { /* value still too raunchy to use? */ - L_CLR(&ci); - di = 0; - } else { - di = max(di, NTP_MINDIST); - } - - - /* - * This one is valid. Give it to clock_filter(), - */ - clock_filter(server, di, &ci); - if (debug > 1) - printf("receive from %s\n", ntoa(&rbufp->srcadr)); - - /* - * See if we should goes the transmission. If not return now - * otherwise have the next event time be shortened - */ - if (server->stratum <= NTP_INFIN) - return; /* server does not have a stratum */ - if (server->leap == LEAP_NOTINSYNC) - return; /* just booted server or out of sync */ - if (!L_ISHIS(&server->org, &server->reftime)) - return; /* broken host */ - if (server->trust != 0) - return; /* can not trust it */ - - if (server->dispersion < DESIREDDISP) - return; /* we have the desired dispersion */ - - server->event_time -= (TIMER_HZ+1); -} - - -/* - * clock_filter - add clock sample, determine a server's delay, dispersion - * and offset - */ -static void -clock_filter( - register struct server *server, - s_fp di, - l_fp *c - ) -{ - register int i, j; - int ord[NTP_SHIFT]; - - /* - * Insert sample and increment nextpt - */ - - i = server->filter_nextpt; - server->filter_delay[i] = di; - server->filter_offset[i] = *c; - server->filter_soffset[i] = LFPTOFP(c); - server->filter_nextpt++; - if (server->filter_nextpt >= NTP_SHIFT) - server->filter_nextpt = 0; - - /* - * Sort indices into increasing delay order - */ - for (i = 0; i < NTP_SHIFT; i++) - ord[i] = i; - - for (i = 0; i < (NTP_SHIFT-1); i++) { - for (j = i+1; j < NTP_SHIFT; j++) { - if (server->filter_delay[ord[j]] == 0) - continue; - if (server->filter_delay[ord[i]] == 0 - || (server->filter_delay[ord[i]] - > server->filter_delay[ord[j]])) { - register int tmp; - - tmp = ord[i]; - ord[i] = ord[j]; - ord[j] = tmp; - } - } - } - - /* - * Now compute the dispersion, and assign values to delay and - * offset. If there are no samples in the register, delay and - * offset go to zero and dispersion is set to the maximum. - */ - if (server->filter_delay[ord[0]] == 0) { - server->delay = 0; - L_CLR(&server->offset); - server->soffset = 0; - server->dispersion = PEER_MAXDISP; - } else { - register s_fp d; - - server->delay = server->filter_delay[ord[0]]; - server->offset = server->filter_offset[ord[0]]; - server->soffset = LFPTOFP(&server->offset); - server->dispersion = 0; - for (i = 1; i < NTP_SHIFT; i++) { - if (server->filter_delay[ord[i]] == 0) - d = PEER_MAXDISP; - else { - d = server->filter_soffset[ord[i]] - - server->filter_soffset[ord[0]]; - if (d < 0) - d = -d; - if (d > PEER_MAXDISP) - d = PEER_MAXDISP; - } - /* - * XXX This *knows* PEER_FILTER is 1/2 - */ - server->dispersion += (u_fp)(d) >> i; - } - } - /* - * We're done - */ -} - - -/* clock_count - count the clock sources we have - */ -static void -clock_count(void) -{ - register struct server *server; - register int n; - - /* reset counts */ - validcount = valid_n_low = 0; - - /* go through the list of servers and count the clocks we believe - * and that have low dispersion - */ - for (n = 0; n < sys_numservers; n++) { - server = sys_servers[n]; - if (server->delay == 0) { - continue; /* no data */ - } - if (server->stratum > NTP_INFIN) { - continue; /* stratum no good */ - } - if (server->delay > NTP_MAXWGT) { - continue; /* too far away */ - } - if (server->leap == LEAP_NOTINSYNC) - continue; /* he's in trouble */ - if (!L_ISHIS(&server->org, &server->reftime)) { - continue; /* very broken host */ - } - if ((server->org.l_ui - server->reftime.l_ui) >= NTP_MAXAGE) { - continue; /* too long without sync */ - } - if (server->trust != 0) { - continue; - } - - /* - * This one is a valid time source.. - */ - validcount++; - - /* - * See if this one has a okay low dispersion - */ - if (server->dispersion <= DESIREDDISP) - valid_n_low++; - } - - if (debug > 1) - printf("have %d, valid %d, low %d\n", - responding, validcount, valid_n_low); -} - - -/* - * clock_select - select the pick-of-the-litter clock from the samples - * we've got. - */ -static struct server * -clock_select(void) -{ - register struct server *server; - register int i; - register int nlist; - register s_fp d; - register int j; - register int n; - s_fp local_threshold; - struct server *server_list[NTP_MAXCLOCK]; - u_fp server_badness[NTP_MAXCLOCK]; - struct server *sys_server; - - /* - * This first chunk of code is supposed to go through all - * servers we know about to find the NTP_MAXLIST servers which - * are most likely to succeed. We run through the list - * doing the sanity checks and trying to insert anyone who - * looks okay. We are at all times aware that we should - * only keep samples from the top two strata and we only need - * NTP_MAXLIST of them. - */ - nlist = 0; /* none yet */ - for (n = 0; n < sys_numservers; n++) { - server = sys_servers[n]; - if (server->delay == 0) - continue; /* no data */ - if (server->stratum > NTP_INFIN) - continue; /* stratum no good */ - if (server->delay > NTP_MAXWGT) { - continue; /* too far away */ - } - if (server->leap == LEAP_NOTINSYNC) - continue; /* he's in trouble */ - if (!L_ISHIS(&server->org, &server->reftime)) { - continue; /* very broken host */ - } - if ((server->org.l_ui - server->reftime.l_ui) - >= NTP_MAXAGE) { - continue; /* too long without sync */ - } - if (server->trust != 0) { - continue; - } - - /* - * This one seems sane. Find where he belongs - * on the list. - */ - d = server->dispersion + server->dispersion; - for (i = 0; i < nlist; i++) - if (server->stratum <= server_list[i]->stratum) - break; - for ( ; i < nlist; i++) { - if (server->stratum < server_list[i]->stratum) - break; - if (d < (s_fp) server_badness[i]) - break; - } - - /* - * If i points past the end of the list, this - * guy is a loser, else stick him in. - */ - if (i >= NTP_MAXLIST) - continue; - for (j = nlist; j > i; j--) - if (j < NTP_MAXLIST) { - server_list[j] = server_list[j-1]; - server_badness[j] - = server_badness[j-1]; - } - - server_list[i] = server; - server_badness[i] = d; - if (nlist < NTP_MAXLIST) - nlist++; - } - - /* - * Got the five-or-less best. Cut the list where the number of - * strata exceeds two. - */ - j = 0; - for (i = 1; i < nlist; i++) - if (server_list[i]->stratum > server_list[i-1]->stratum) - if (++j == 2) { - nlist = i; - break; - } - - /* - * Whew! What we should have by now is 0 to 5 candidates for - * the job of syncing us. If we have none, we're out of luck. - * If we have one, he's a winner. If we have more, do falseticker - * detection. - */ - - if (nlist == 0) - sys_server = 0; - else if (nlist == 1) { - sys_server = server_list[0]; - } else { - /* - * Re-sort by stratum, bdelay estimate quality and - * server.delay. - */ - for (i = 0; i < nlist-1; i++) - for (j = i+1; j < nlist; j++) { - if (server_list[i]->stratum - < server_list[j]->stratum) - break; /* already sorted by stratum */ - if (server_list[i]->delay - < server_list[j]->delay) - continue; - server = server_list[i]; - server_list[i] = server_list[j]; - server_list[j] = server; - } - - /* - * Calculate the fixed part of the dispersion limit - */ - local_threshold = (FP_SECOND >> (-(int)NTPDATE_PRECISION)) - + NTP_MAXSKW; - - /* - * Now drop samples until we're down to one. - */ - while (nlist > 1) { - for (n = 0; n < nlist; n++) { - server_badness[n] = 0; - for (j = 0; j < nlist; j++) { - if (j == n) /* with self? */ - continue; - d = server_list[j]->soffset - - server_list[n]->soffset; - if (d < 0) /* absolute value */ - d = -d; - /* - * XXX This code *knows* that - * NTP_SELECT is 3/4 - */ - for (i = 0; i < j; i++) - d = (d>>1) + (d>>2); - server_badness[n] += d; - } - } - - /* - * We now have an array of nlist badness - * coefficients. Find the badest. Find - * the minimum precision while we're at - * it. - */ - i = 0; - n = server_list[0]->precision;; - for (j = 1; j < nlist; j++) { - if (server_badness[j] >= server_badness[i]) - i = j; - if (n > server_list[j]->precision) - n = server_list[j]->precision; - } - - /* - * i is the index of the server with the worst - * dispersion. If his dispersion is less than - * the threshold, stop now, else delete him and - * continue around again. - */ - if (server_badness[i] < (local_threshold - + (FP_SECOND >> (-n)))) - break; - for (j = i + 1; j < nlist; j++) - server_list[j-1] = server_list[j]; - nlist--; - } - - /* - * What remains is a list of less than 5 servers. Take - * the best. - */ - sys_server = server_list[0]; - } - - /* - * That's it. Return our server. - */ - return sys_server; -} - - -/* - * set_local_clock -- handle setting the local clock or displaying info. - */ -static void -set_local_clock(void) -{ - register int i; - register struct server *server; - time_t tmp; - double dtemp; - - /* - * if setting time then print final analysis - */ - if (set_time) - analysis(1); - - /* - * pick a clock - */ - server = clock_select(); - - /* - * do some display of information - */ - if (debug || verbose) { - for (i = 0; i < sys_numservers; i++) - printserver(sys_servers[i], stdout); - if (debug) - printf("packets sent %ld, received %ld\n", - total_xmit, total_recv); - } - - /* - * see if we have a server to set the time with - */ - if (server == 0) { - if (!set_time || verbose) - fprintf(stdout,"No servers available to sync time with\n"); - exit(1); - } - - /* - * we have a valid and selected time to use!!!!! - */ - - /* - * if we are not setting the time then display offset and exit - */ - if (!set_time) { - fprintf(stdout, - "Your clock is off by %s seconds. (%s) [%ld/%ld]\n", - lfptoa(&server->offset, 7), - ntoa(&server->srcadr), - total_xmit, total_recv); - exit(0); - } - - /* - * set the clock - * XXX: Examine the more flexible approach used by ntpdate. - * Note that a design consideration here is that we sometimes - * _want_ to step the clock by a _huge_ amount in either - * direction, because the local clock is completely bogus. - * This condition must be recognized and dealt with, so - * that we always get a good time when this completes. - * -- jhutz+@cmu.edu, 16-Aug-1999 - */ - LFPTOD(&server->offset, dtemp); - step_systime(dtemp); - time(&tmp); - fprintf(stdout,"Time set to %.20s [%s %s %ld/%ld]\n", - ctime(&tmp)+4, - ntoa(&server->srcadr), - lfptoa(&server->offset, 7), - total_xmit, total_recv); - exit(0); -} - - -/* - * findserver - find a server in the list given its address - */ -static struct server * -findserver( - struct sockaddr_in *addr - ) -{ - register int i; - register u_int32 netnum; - - if (htons(addr->sin_port) != NTP_PORT) - return 0; - netnum = addr->sin_addr.s_addr; - - for (i = 0; i < sys_numservers; i++) { - if (netnum == sys_servers[i]->srcadr.sin_addr.s_addr) - return sys_servers[i]; - } - return 0; -} - - -/* - * timer - process a timer interrupt - */ -static void -timer(void) -{ - register int k; - - /* - * Bump the current idea of the time - */ - current_time++; - - /* - * see if we have reached half time - */ - if (current_time >= half_time && !secondhalf) { - secondhalf++; - if (debug) - printf("\nSecond Half of Timeout!\n"); - printmsg++; - } - - /* - * We only want to send a few packets per transmit interrupt - * to throttle things - */ - for(k = 0;k < MAXXMITCOUNT;k++) { - register int i, oldi; - register u_long oldxtime; - - /* - * We want to send a packet out for a server that has an - * expired event time. However to be mellow about this, we only - * use one expired event timer and to avoid starvation we use - * the one with the oldest last transmit time. - */ - oldi = -1; - oldxtime = 0; - for (i = 0; i < sys_numservers; i++) { - if (sys_servers[i]->event_time <= current_time) { - if (oldi < 0 || oldxtime > sys_servers[i]->last_xmit) { - oldxtime = sys_servers[i]->last_xmit; - oldi = i; - } - } - } - if (oldi >= 0) - transmit(sys_servers[oldi]); - else - break; /* no expired event */ - } /* end of transmit loop */ -} - - -#ifndef SYS_WINNT -/* - * alarming - record the occurance of an alarm interrupt - */ -static RETSIGTYPE -alarming( - int sig - ) -#else -void CALLBACK -alarming(UINT uTimerID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2) -#endif /* SYS_WINNT */ -{ - alarm_flag++; -} - - -/* - * init_alarm - set up the timer interrupt - */ -static void -init_alarm(void) -{ -#ifndef SYS_WINNT -# ifndef HAVE_TIMER_SETTIME - struct itimerval itimer; -# else - struct itimerspec ntpdate_itimer; -# endif -#else - TIMECAPS tc; - UINT wTimerRes, wTimerID; -# endif /* SYS_WINNT */ -#if defined SYS_CYGWIN32 || defined SYS_WINNT - HANDLE hToken; - TOKEN_PRIVILEGES tkp; - DWORD dwUser = 0; -#endif /* SYS_WINNT */ - - alarm_flag = 0; - -#ifndef SYS_WINNT -# if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) - alarm_flag = 0; - /* this code was put in as setitimer() is non existant this us the - * POSIX "equivalents" setup - casey - */ - /* ntpdate_timerid is global - so we can kill timer later */ - if (timer_create (CLOCK_REALTIME, NULL, &ntpdate_timerid) == -# ifdef SYS_VXWORKS - ERROR -# else - -1 -# endif - ) - { - fprintf (stderr, "init_alarm(): timer_create (...) FAILED\n"); - return; - } - - /* TIMER_HZ = (5) - * Set up the alarm interrupt. The first comes 1/(2*TIMER_HZ) - * seconds from now and they continue on every 1/TIMER_HZ seconds. - */ - (void) signal_no_reset(SIGALRM, alarming); - ntpdate_itimer.it_interval.tv_sec = ntpdate_itimer.it_value.tv_sec = 0; - ntpdate_itimer.it_interval.tv_nsec = 1000000000/TIMER_HZ; - ntpdate_itimer.it_value.tv_nsec = 1000000000/(TIMER_HZ<<1); - timer_settime(ntpdate_timerid, 0 /* !TIMER_ABSTIME */, &ntpdate_itimer, NULL); -# else - /* - * Set up the alarm interrupt. The first comes 1/(2*TIMER_HZ) - * seconds from now and they continue on every 1/TIMER_HZ seconds. - */ - (void) signal_no_reset(SIGALRM, alarming); - itimer.it_interval.tv_sec = itimer.it_value.tv_sec = 0; - itimer.it_interval.tv_usec = 1000000/TIMER_HZ; - itimer.it_value.tv_usec = 1000000/(TIMER_HZ<<1); - setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0); -# endif -#if defined SYS_CYGWIN32 - /* - * Get previleges needed for fiddling with the clock - */ - - /* get the current process token handle */ - if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) { - msyslog(LOG_ERR, "OpenProcessToken failed: %m"); - exit(1); - } - /* get the LUID for system-time privilege. */ - LookupPrivilegeValue(NULL, SE_SYSTEMTIME_NAME, &tkp.Privileges[0].Luid); - tkp.PrivilegeCount = 1; /* one privilege to set */ - tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; - /* get set-time privilege for this process. */ - AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES) NULL, 0); - /* cannot test return value of AdjustTokenPrivileges. */ - if (GetLastError() != ERROR_SUCCESS) - msyslog(LOG_ERR, "AdjustTokenPrivileges failed: %m"); -#endif -#else /* SYS_WINNT */ - _tzset(); - - /* - * Get previleges needed for fiddling with the clock - */ - - /* get the current process token handle */ - if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) { - msyslog(LOG_ERR, "OpenProcessToken failed: %m"); - exit(1); - } - /* get the LUID for system-time privilege. */ - LookupPrivilegeValue(NULL, SE_SYSTEMTIME_NAME, &tkp.Privileges[0].Luid); - tkp.PrivilegeCount = 1; /* one privilege to set */ - tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; - /* get set-time privilege for this process. */ - AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES) NULL, 0); - /* cannot test return value of AdjustTokenPrivileges. */ - if (GetLastError() != ERROR_SUCCESS) - msyslog(LOG_ERR, "AdjustTokenPrivileges failed: %m"); - - /* - * Set up timer interrupts for every 2**EVENT_TIMEOUT seconds - * Under Win/NT, expiry of timer interval leads to invocation - * of a callback function (on a different thread) rather than - * generating an alarm signal - */ - - /* determine max and min resolution supported */ - if(timeGetDevCaps(&tc, sizeof(TIMECAPS)) != TIMERR_NOERROR) { - msyslog(LOG_ERR, "timeGetDevCaps failed: %m"); - exit(1); - } - wTimerRes = min(max(tc.wPeriodMin, TARGET_RESOLUTION), tc.wPeriodMax); - /* establish the minimum timer resolution that we'll use */ - timeBeginPeriod(wTimerRes); - - /* start the timer event */ - wTimerID = timeSetEvent( - (UINT) (1000/TIMER_HZ), /* Delay */ - wTimerRes, /* Resolution */ - (LPTIMECALLBACK) alarming, /* Callback function */ - (DWORD) dwUser, /* User data */ - TIME_PERIODIC); /* Event type (periodic) */ - if (wTimerID == 0) { - msyslog(LOG_ERR, "timeSetEvent failed: %m"); - exit(1); - } -#endif /* SYS_WINNT */ -} - - -/* - * init_io - initialize I/O data and open socket - */ -static void -init_io(void) -{ -#ifdef SYS_WINNT - WORD wVersionRequested; - WSADATA wsaData; - init_transmitbuff(); -#endif /* SYS_WINNT */ - - /* - * Init buffer free list and stat counters - */ - init_recvbuff(sys_numservers + 2); - -#if defined(HAVE_SIGNALED_IO) - set_signal(); -#endif - -#ifdef SYS_WINNT - wVersionRequested = MAKEWORD(1,1); - if (WSAStartup(wVersionRequested, &wsaData)) - { - msyslog(LOG_ERR, "No useable winsock.dll: %m"); - exit(1); - } -#endif /* SYS_WINNT */ - - BLOCKIO(); - - /* create a datagram (UDP) socket */ - if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - msyslog(LOG_ERR, "socket() failed: %m"); - exit(1); - /*NOTREACHED*/ - } - - /* - * bind the socket to the NTP port - */ - if (!debug && set_time && !unpriv_port) { - struct sockaddr_in addr; - - memset((char *)&addr, 0, sizeof addr); - addr.sin_family = AF_INET; - addr.sin_port = htons(NTP_PORT); - addr.sin_addr.s_addr = htonl(INADDR_ANY); - if (bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) { -#ifndef SYS_WINNT - if (errno == EADDRINUSE) -#else - if (WSAGetLastError() == WSAEADDRINUSE) -#endif - msyslog(LOG_ERR, - "the NTP socket is in use, exiting"); - else - msyslog(LOG_ERR, "bind() fails: %m"); - exit(1); - } - } - - FD_ZERO(&fdmask); - FD_SET(fd, &fdmask); - - /* - * set non-blocking, - */ - -#ifdef USE_FIONBIO - /* in vxWorks we use FIONBIO, but the others are defined for old systems, so - * all hell breaks loose if we leave them defined - */ -#undef O_NONBLOCK -#undef FNDELAY -#undef O_NDELAY -#endif - -#if defined(O_NONBLOCK) /* POSIX */ - if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) - { - msyslog(LOG_ERR, "fcntl(O_NONBLOCK) fails: %m"); - exit(1); - /*NOTREACHED*/ - } -#elif defined(FNDELAY) - if (fcntl(fd, F_SETFL, FNDELAY) < 0) - { - msyslog(LOG_ERR, "fcntl(FNDELAY) fails: %m"); - exit(1); - /*NOTREACHED*/ - } -#elif defined(O_NDELAY) /* generally the same as FNDELAY */ - if (fcntl(fd, F_SETFL, O_NDELAY) < 0) - { - msyslog(LOG_ERR, "fcntl(O_NDELAY) fails: %m"); - exit(1); - /*NOTREACHED*/ - } -#elif defined(FIONBIO) - if ( -# if defined(VMS) - (ioctl(fd,FIONBIO,&1) < 0) -# elif defined(SYS_WINNT) - (ioctlsocket(fd,FIONBIO,(u_long *) &on) == SOCKET_ERROR) -# else - (ioctl(fd,FIONBIO,&on) < 0) -# endif - ) - { - msyslog(LOG_ERR, "ioctl(FIONBIO) fails: %m"); - exit(1); - /*NOTREACHED*/ - } -#elif defined(FIOSNBIO) - if (ioctl(fd,FIOSNBIO,&on) < 0) - { - msyslog(LOG_ERR, "ioctl(FIOSNBIO) fails: %m"); - exit(1); - /*NOTREACHED*/ - } -#else -# include "Bletch: Need non-blocking I/O!" -#endif - -#ifdef HAVE_SIGNALED_IO - init_socket_sig(fd); -#endif /* not HAVE_SIGNALED_IO */ - - UNBLOCKIO(); -} - - -/* - * sendpkt - send a packet to the specified destination - */ -static int -sendpkt( - struct sockaddr_in *dest, - struct pkt *pkt, - int len - ) -{ - int cc; - static int horriblecnt = 0; -#ifdef SYS_WINNT - DWORD err; -#endif /* SYS_WINNT */ - - total_xmit++; /* count it */ - - if (horrible) { - if (++horriblecnt > HORRIBLEOK) { - if (debug > 3) - printf("dropping send (%s)\n", ntoa(dest)); - if (horriblecnt >= HORRIBLEOK+horrible) - horriblecnt = 0; - return 0; - } - } - - - cc = sendto(fd, (char *)pkt, (size_t)len, 0, (struct sockaddr *)dest, - sizeof(struct sockaddr_in)); -#ifndef SYS_WINNT - if (cc == -1) { - if (errno != EWOULDBLOCK && errno != ENOBUFS) -#else - if (cc == SOCKET_ERROR) { - err = WSAGetLastError(); - if (err != WSAEWOULDBLOCK && err != WSAENOBUFS) -#endif /* SYS_WINNT */ - msyslog(LOG_ERR, "sendto(%s): %m", ntoa(dest)); - return -1; - } - return 0; -} - - -/* - * input_handler - receive packets asynchronously - */ -void -input_handler(l_fp *xts) -{ - register int n; - register struct recvbuf *rb; - struct timeval tvzero; - int fromlen; - fd_set fds; - l_fp ts; - ts = *xts; /* we ignore xts, but make the compiler happy */ - - /* - * Do a poll to see if we have data - */ - for (;;) { - fds = fdmask; - tvzero.tv_sec = tvzero.tv_usec = 0; - n = select(fd+1, &fds, (fd_set *)0, (fd_set *)0, &tvzero); - - /* - * If nothing to do, just return. If an error occurred, - * complain and return. If we've got some, freeze a - * timestamp. - */ - if (n == 0) - return; - else if (n == -1) { - if (errno != EINTR) { - msyslog(LOG_ERR, "select() error: %m"); - } - return; - } - get_systime(&ts); - - /* - * Get a buffer and read the frame. If we - * haven't got a buffer, or this is received - * on the wild card socket, just dump the packet. - */ - if (initializing || free_recvbuffs == 0) { - char buf[100]; - -#ifndef SYS_WINNT - (void) read(fd, buf, sizeof buf); -#else - /* NT's _read does not operate on nonblocking sockets - * either recvfrom or ReadFile() has to be used here. - * ReadFile is used in [ntpd]ntp_intres() and ntpdc, - * just to be different use recvfrom() here - */ - recvfrom(fd, buf, sizeof(buf), 0, (struct sockaddr *)0, NULL); -#endif /* SYS_WINNT */ - continue; - } - - rb = get_free_recv_buffer(); - - fromlen = sizeof(struct sockaddr_in); - rb->recv_length = recvfrom(fd, (char *)&rb->recv_pkt, - sizeof(rb->recv_pkt), 0, - (struct sockaddr *)&rb->srcadr, &fromlen); - if (rb->recv_length == -1) { - freerecvbuf(rb); - continue; - } - - /* - * Got one. Mark how and when it got here, - * put it on the full list. - */ - rb->recv_time = ts; - add_full_recv_buffer(rb); - total_recv++; /* count it */ - } -} - - -/* XXX ELIMINATE printserver similar in ntptrace.c, ntpdate.c */ -/* - * printserver - print detail information for a server - */ -static void -printserver( - register struct server *pp, - FILE *fp - ) -{ - register int i; - char junk[5]; - char *str; - - if (!debug) { - (void) fprintf(fp, - "%-15s %d/%d %03o v%d s%d offset %9s delay %s disp %s\n", - ntoa(&pp->srcadr), - pp->xmtcnt,pp->rcvcnt,pp->reach, - pp->version,pp->stratum, - lfptoa(&pp->offset, 6), ufptoa(pp->delay, 5), - ufptoa(pp->dispersion, 4)); - return; - } - - (void) fprintf(fp, "server %s, port %d\n", - ntoa(&pp->srcadr), ntohs(pp->srcadr.sin_port)); - - (void) fprintf(fp, "stratum %d, precision %d, leap %c%c, trust %03o\n", - pp->stratum, pp->precision, - pp->leap & 0x2 ? '1' : '0', - pp->leap & 0x1 ? '1' : '0', - pp->trust); - - if (pp->stratum == 1) { - junk[4] = 0; - memmove(junk, (char *)&pp->refid, 4); - str = junk; - } else { - str = numtoa(pp->refid); - } - (void) fprintf(fp, - "refid [%s], delay %s, dispersion %s\n", - str, fptoa((s_fp)pp->delay, 5), - ufptoa(pp->dispersion, 5)); - - (void) fprintf(fp, "transmitted %d, received %d, reachable %03o\n", - pp->xmtcnt, pp->rcvcnt, pp->reach); - - (void) fprintf(fp, "reference time: %s\n", - prettydate(&pp->reftime)); - (void) fprintf(fp, "originate timestamp: %s\n", - prettydate(&pp->org)); - (void) fprintf(fp, "transmit timestamp: %s\n", - prettydate(&pp->xmt)); - - (void) fprintf(fp, "filter delay: "); - for (i = 0; i < NTP_SHIFT; i++) { - (void) fprintf(fp, " %-8.8s", fptoa(pp->filter_delay[i], 5)); - if (i == (NTP_SHIFT>>1)-1) - (void) fprintf(fp, "\n "); - } - (void) fprintf(fp, "\n"); - - (void) fprintf(fp, "filter offset:"); - for (i = 0; i < PEER_SHIFT; i++) { - (void) fprintf(fp, " %-8.8s", lfptoa(&pp->filter_offset[i], 6)); - if (i == (PEER_SHIFT>>1)-1) - (void) fprintf(fp, "\n "); - } - (void) fprintf(fp, "\n"); - - (void) fprintf(fp, "delay %s, dispersion %s\n", - fptoa((s_fp)pp->delay, 5), ufptoa(pp->dispersion, 5)); - - (void) fprintf(fp, "offset %s\n\n", - lfptoa(&pp->offset, 6)); -}