1/*
2 * ntpq-subs.c - subroutines which are called to perform ntpq commands.
3 */
4#include <config.h>
5#include <stdio.h>
6#include <ctype.h>
7#include <sys/types.h>
8#include <sys/time.h>
9
10#include "ntpq.h"
11#include "ntpq-opts.h"
12
13extern char	currenthost[];
14extern int	currenthostisnum;
15size_t		maxhostlen;
16
17/*
18 * Declarations for command handlers in here
19 */
20static	associd_t checkassocid	(u_int32);
21static	struct varlist *findlistvar (struct varlist *, char *);
22static	void	doaddvlist	(struct varlist *, const char *);
23static	void	dormvlist	(struct varlist *, const char *);
24static	void	doclearvlist	(struct varlist *);
25static	void	makequerydata	(struct varlist *, size_t *, char *);
26static	int	doquerylist	(struct varlist *, int, associd_t, int,
27				 u_short *, size_t *, const char **);
28static	void	doprintvlist	(struct varlist *, FILE *);
29static	void	addvars 	(struct parse *, FILE *);
30static	void	rmvars		(struct parse *, FILE *);
31static	void	clearvars	(struct parse *, FILE *);
32static	void	showvars	(struct parse *, FILE *);
33static	int	dolist		(struct varlist *, associd_t, int, int,
34				 FILE *);
35static	void	readlist	(struct parse *, FILE *);
36static	void	writelist	(struct parse *, FILE *);
37static	void	readvar 	(struct parse *, FILE *);
38static	void	writevar	(struct parse *, FILE *);
39static	void	clocklist	(struct parse *, FILE *);
40static	void	clockvar	(struct parse *, FILE *);
41static	int	findassidrange	(u_int32, u_int32, int *, int *,
42				 FILE *);
43static	void	mreadlist	(struct parse *, FILE *);
44static	void	mreadvar	(struct parse *, FILE *);
45static	void	printassoc	(int, FILE *);
46static	void	associations	(struct parse *, FILE *);
47static	void	lassociations	(struct parse *, FILE *);
48static	void	passociations	(struct parse *, FILE *);
49static	void	lpassociations	(struct parse *, FILE *);
50
51#ifdef	UNUSED
52static	void	radiostatus (struct parse *, FILE *);
53#endif	/* UNUSED */
54
55static	void	authinfo	(struct parse *, FILE *);
56static	void	pstats	 	(struct parse *, FILE *);
57static	long	when		(l_fp *, l_fp *, l_fp *);
58static	char *	prettyinterval	(char *, size_t, long);
59static	int	doprintpeers	(struct varlist *, int, int, size_t, const char *, FILE *, int);
60static	int	dogetpeers	(struct varlist *, associd_t, FILE *, int);
61static	void	dopeers 	(int, FILE *, int);
62static	void	peers		(struct parse *, FILE *);
63static	void	doapeers 	(int, FILE *, int);
64static	void	apeers		(struct parse *, FILE *);
65static	void	lpeers		(struct parse *, FILE *);
66static	void	doopeers	(int, FILE *, int);
67static	void	opeers		(struct parse *, FILE *);
68static	void	lopeers 	(struct parse *, FILE *);
69static	void	config		(struct parse *, FILE *);
70static	void	saveconfig	(struct parse *, FILE *);
71static	void	config_from_file(struct parse *, FILE *);
72static	void	mrulist		(struct parse *, FILE *);
73static	void	ifstats		(struct parse *, FILE *);
74static	void	reslist		(struct parse *, FILE *);
75static	void	sysstats	(struct parse *, FILE *);
76static	void	sysinfo		(struct parse *, FILE *);
77static	void	kerninfo	(struct parse *, FILE *);
78static	void	monstats	(struct parse *, FILE *);
79static	void	iostats		(struct parse *, FILE *);
80static	void	timerstats	(struct parse *, FILE *);
81
82/*
83 * Commands we understand.	Ntpdc imports this.
84 */
85struct xcmd opcmds[] = {
86	{ "saveconfig", saveconfig, { NTP_STR, NO, NO, NO },
87		{ "filename", "", "", ""},
88		"save ntpd configuration to file, . for current config file"},
89	{ "associations", associations, {  NO, NO, NO, NO },
90	  { "", "", "", "" },
91	  "print list of association ID's and statuses for the server's peers" },
92	{ "passociations", passociations,   {  NO, NO, NO, NO },
93	  { "", "", "", "" },
94	  "print list of associations returned by last associations command" },
95	{ "lassociations", lassociations,   {  NO, NO, NO, NO },
96	  { "", "", "", "" },
97	  "print list of associations including all client information" },
98	{ "lpassociations", lpassociations, {  NO, NO, NO, NO },
99	  { "", "", "", "" },
100	  "print last obtained list of associations, including client information" },
101	{ "addvars",    addvars,    { NTP_STR, NO, NO, NO },
102	  { "name[=value][,...]", "", "", "" },
103	  "add variables to the variable list or change their values" },
104	{ "rmvars", rmvars,     { NTP_STR, NO, NO, NO },
105	  { "name[,...]", "", "", "" },
106	  "remove variables from the variable list" },
107	{ "clearvars",  clearvars,  { NO, NO, NO, NO },
108	  { "", "", "", "" },
109	  "remove all variables from the variable list" },
110	{ "showvars",   showvars,   { NO, NO, NO, NO },
111	  { "", "", "", "" },
112	  "print variables on the variable list" },
113	{ "readlist",   readlist,   { OPT|NTP_UINT, NO, NO, NO },
114	  { "assocID", "", "", "" },
115	  "read the system or peer variables included in the variable list" },
116	{ "rl",     readlist,   { OPT|NTP_UINT, NO, NO, NO },
117	  { "assocID", "", "", "" },
118	  "read the system or peer variables included in the variable list" },
119	{ "writelist",  writelist,  { OPT|NTP_UINT, NO, NO, NO },
120	  { "assocID", "", "", "" },
121	  "write the system or peer variables included in the variable list" },
122	{ "readvar", readvar,    { OPT|NTP_UINT, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, },
123	  { "assocID", "varname1", "varname2", "varname3" },
124	  "read system or peer variables" },
125	{ "rv",      readvar,    { OPT|NTP_UINT, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, },
126	  { "assocID", "varname1", "varname2", "varname3" },
127	  "read system or peer variables" },
128	{ "writevar",   writevar,   { NTP_UINT, NTP_STR, NO, NO },
129	  { "assocID", "name=value,[...]", "", "" },
130	  "write system or peer variables" },
131	{ "mreadlist",  mreadlist,  { NTP_UINT, NTP_UINT, NO, NO },
132	  { "assocIDlow", "assocIDhigh", "", "" },
133	  "read the peer variables in the variable list for multiple peers" },
134	{ "mrl",    mreadlist,  { NTP_UINT, NTP_UINT, NO, NO },
135	  { "assocIDlow", "assocIDhigh", "", "" },
136	  "read the peer variables in the variable list for multiple peers" },
137	{ "mreadvar",   mreadvar,   { NTP_UINT, NTP_UINT, OPT|NTP_STR, NO },
138	  { "assocIDlow", "assocIDhigh", "name=value[,...]", "" },
139	  "read peer variables from multiple peers" },
140	{ "mrv",    mreadvar,   { NTP_UINT, NTP_UINT, OPT|NTP_STR, NO },
141	  { "assocIDlow", "assocIDhigh", "name=value[,...]", "" },
142	  "read peer variables from multiple peers" },
143	{ "clocklist",  clocklist,  { OPT|NTP_UINT, NO, NO, NO },
144	  { "assocID", "", "", "" },
145	  "read the clock variables included in the variable list" },
146	{ "cl",     clocklist,  { OPT|NTP_UINT, NO, NO, NO },
147	  { "assocID", "", "", "" },
148	  "read the clock variables included in the variable list" },
149	{ "clockvar",   clockvar,   { OPT|NTP_UINT, OPT|NTP_STR, NO, NO },
150	  { "assocID", "name=value[,...]", "", "" },
151	  "read clock variables" },
152	{ "cv",     clockvar,   { OPT|NTP_UINT, OPT|NTP_STR, NO, NO },
153	  { "assocID", "name=value[,...]", "", "" },
154	  "read clock variables" },
155	{ "pstats",    pstats,    { NTP_UINT, NO, NO, NO },
156	  { "assocID", "", "", "" },
157	  "show statistics for a peer" },
158	{ "peers",  peers,      { OPT|IP_VERSION, NO, NO, NO },
159	  { "-4|-6", "", "", "" },
160	  "obtain and print a list of the server's peers [IP version]" },
161	{ "apeers",  apeers,      { OPT|IP_VERSION, NO, NO, NO },
162	  { "-4|-6", "", "", "" },
163	  "obtain and print a list of the server's peers and their assocIDs [IP version]" },
164	{ "lpeers", lpeers,     { OPT|IP_VERSION, NO, NO, NO },
165	  { "-4|-6", "", "", "" },
166	  "obtain and print a list of all peers and clients [IP version]" },
167	{ "opeers", opeers,     { OPT|IP_VERSION, NO, NO, NO },
168	  { "-4|-6", "", "", "" },
169	  "print peer list the old way, with dstadr shown rather than refid [IP version]" },
170	{ "lopeers", lopeers,   { OPT|IP_VERSION, NO, NO, NO },
171	  { "-4|-6", "", "", "" },
172	  "obtain and print a list of all peers and clients showing dstadr [IP version]" },
173	{ ":config", config,   { NTP_STR, NO, NO, NO },
174	  { "<configuration command line>", "", "", "" },
175	  "send a remote configuration command to ntpd" },
176	{ "config-from-file", config_from_file, { NTP_STR, NO, NO, NO },
177	  { "<configuration filename>", "", "", "" },
178	  "configure ntpd using the configuration filename" },
179	{ "mrulist", mrulist, { OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR },
180	  { "tag=value", "tag=value", "tag=value", "tag=value" },
181	  "display the list of most recently seen source addresses, tags mincount=... resall=0x... resany=0x..." },
182	{ "ifstats", ifstats, { NO, NO, NO, NO },
183	  { "", "", "", "" },
184	  "show statistics for each local address ntpd is using" },
185	{ "reslist", reslist, { NO, NO, NO, NO },
186	  { "", "", "", "" },
187	  "show ntpd access control list" },
188	{ "sysinfo", sysinfo, { NO, NO, NO, NO },
189	  { "", "", "", "" },
190	  "display system summary" },
191	{ "kerninfo", kerninfo, { NO, NO, NO, NO },
192	  { "", "", "", "" },
193	  "display kernel loop and PPS statistics" },
194	{ "sysstats", sysstats, { NO, NO, NO, NO },
195	  { "", "", "", "" },
196	  "display system uptime and packet counts" },
197	{ "monstats", monstats, { NO, NO, NO, NO },
198	  { "", "", "", "" },
199	  "display monitor (mrulist) counters and limits" },
200	{ "authinfo", authinfo, { NO, NO, NO, NO },
201	  { "", "", "", "" },
202	  "display symmetric authentication counters" },
203	{ "iostats", iostats, { NO, NO, NO, NO },
204	  { "", "", "", "" },
205	  "display network input and output counters" },
206	{ "timerstats", timerstats, { NO, NO, NO, NO },
207	  { "", "", "", "" },
208	  "display interval timer counters" },
209	{ 0,		0,		{ NO, NO, NO, NO },
210	  { "-4|-6", "", "", "" }, "" }
211};
212
213
214/*
215 * Variable list data space
216 */
217#define MAXLINE		512	/* maximum length of a line */
218#define MAXLIST		128	/* maximum variables in list */
219#define LENHOSTNAME	256	/* host name limit */
220
221#define MRU_GOT_COUNT	0x1
222#define MRU_GOT_LAST	0x2
223#define MRU_GOT_FIRST	0x4
224#define MRU_GOT_MV	0x8
225#define MRU_GOT_RS	0x10
226#define MRU_GOT_ADDR	0x20
227#define MRU_GOT_ALL	(MRU_GOT_COUNT | MRU_GOT_LAST | MRU_GOT_FIRST \
228			 | MRU_GOT_MV | MRU_GOT_RS | MRU_GOT_ADDR)
229
230/*
231 * mrulist() depends on MRUSORT_DEF and MRUSORT_RDEF being the first two
232 */
233typedef enum mru_sort_order_tag {
234	MRUSORT_DEF = 0,	/* lstint ascending */
235	MRUSORT_R_DEF,		/* lstint descending */
236	MRUSORT_AVGINT,		/* avgint ascending */
237	MRUSORT_R_AVGINT,	/* avgint descending */
238	MRUSORT_ADDR,		/* IPv4 asc. then IPv6 asc. */
239	MRUSORT_R_ADDR,		/* IPv6 desc. then IPv4 desc. */
240	MRUSORT_COUNT,		/* hit count ascending */
241	MRUSORT_R_COUNT,	/* hit count descending */
242	MRUSORT_MAX,		/* special: count of this enum */
243} mru_sort_order;
244
245const char * const mru_sort_keywords[MRUSORT_MAX] = {
246	"lstint",		/* MRUSORT_DEF */
247	"-lstint",		/* MRUSORT_R_DEF */
248	"avgint",		/* MRUSORT_AVGINT */
249	"-avgint",		/* MRUSORT_R_AVGINT */
250	"addr",			/* MRUSORT_ADDR */
251	"-addr",		/* MRUSORT_R_ADDR */
252	"count",		/* MRUSORT_COUNT */
253	"-count",		/* MRUSORT_R_COUNT */
254};
255
256typedef int (*qsort_cmp)(const void *, const void *);
257
258/*
259 * Old CTL_PST defines for version 2.
260 */
261#define OLD_CTL_PST_CONFIG		0x80
262#define OLD_CTL_PST_AUTHENABLE		0x40
263#define OLD_CTL_PST_AUTHENTIC		0x20
264#define OLD_CTL_PST_REACH		0x10
265#define OLD_CTL_PST_SANE		0x08
266#define OLD_CTL_PST_DISP		0x04
267
268#define OLD_CTL_PST_SEL_REJECT		0
269#define OLD_CTL_PST_SEL_SELCAND 	1
270#define OLD_CTL_PST_SEL_SYNCCAND	2
271#define OLD_CTL_PST_SEL_SYSPEER 	3
272
273char flash2[] = " .+*    "; /* flash decode for version 2 */
274char flash3[] = " x.-+#*o"; /* flash decode for peer status version 3 */
275
276struct varlist {
277	const char *name;
278	char *value;
279} g_varlist[MAXLIST] = { { 0, 0 } };
280
281/*
282 * Imported from ntpq.c
283 */
284extern int showhostnames;
285extern int wideremote;
286extern int rawmode;
287extern struct servent *server_entry;
288extern struct association *assoc_cache;
289extern u_char pktversion;
290
291typedef struct mru_tag mru;
292struct mru_tag {
293	mru *		hlink;	/* next in hash table bucket */
294	DECL_DLIST_LINK(mru, mlink);
295	int		count;
296	l_fp		last;
297	l_fp		first;
298	u_char		mode;
299	u_char		ver;
300	u_short		rs;
301	sockaddr_u	addr;
302};
303
304typedef struct ifstats_row_tag {
305	u_int		ifnum;
306	sockaddr_u	addr;
307	sockaddr_u	bcast;
308	int		enabled;
309	u_int		flags;
310	u_int		mcast_count;
311	char		name[32];
312	u_int		peer_count;
313	u_int		received;
314	u_int		sent;
315	u_int		send_errors;
316	u_int		ttl;
317	u_int		uptime;
318} ifstats_row;
319
320typedef struct reslist_row_tag {
321	u_int		idx;
322	sockaddr_u	addr;
323	sockaddr_u	mask;
324	u_long		hits;
325	char		flagstr[128];
326} reslist_row;
327
328typedef struct var_display_collection_tag {
329	const char * const tag;		/* system variable */
330	const char * const display;	/* descriptive text */
331	u_char type;			/* NTP_STR, etc */
332	union {
333		char *		str;
334		sockaddr_u	sau;	/* NTP_ADD */
335		l_fp		lfp;	/* NTP_LFP */
336	} v;				/* retrieved value */
337} vdc;
338#if !defined(MISSING_C99_STRUCT_INIT)
339# define VDC_INIT(a, b, c) { .tag = a, .display = b, .type = c }
340#else
341# define VDC_INIT(a, b, c) { a, b, c }
342#endif
343/*
344 * other local function prototypes
345 */
346static int	mrulist_ctrl_c_hook(void);
347static mru *	add_mru(mru *);
348static int	collect_mru_list(const char *, l_fp *);
349static int	fetch_nonce(char *, size_t);
350static int	qcmp_mru_avgint(const void *, const void *);
351static int	qcmp_mru_r_avgint(const void *, const void *);
352static int	qcmp_mru_addr(const void *, const void *);
353static int	qcmp_mru_r_addr(const void *, const void *);
354static int	qcmp_mru_count(const void *, const void *);
355static int	qcmp_mru_r_count(const void *, const void *);
356static void	validate_ifnum(FILE *, u_int, int *, ifstats_row *);
357static void	another_ifstats_field(int *, ifstats_row *, FILE *);
358static void	collect_display_vdc(associd_t as, vdc *table,
359				    int decodestatus, FILE *fp);
360
361static	int	xprintf(FILE *,	char const *, ...) NTP_PRINTF(2, 3);
362static	int	xputs(char const *, FILE *);
363static	int	xputc(int, FILE *);
364
365/*
366 * static globals
367 */
368static u_int	mru_count;
369static u_int	mru_dupes;
370volatile int	mrulist_interrupted;
371static mru	mru_list;		/* listhead */
372static mru **	hash_table;
373
374/*
375 * qsort comparison function table for mrulist().  The first two
376 * entries are NULL because they are handled without qsort().
377 */
378static const qsort_cmp mru_qcmp_table[MRUSORT_MAX] = {
379	NULL,			/* MRUSORT_DEF unused */
380	NULL,			/* MRUSORT_R_DEF unused */
381	&qcmp_mru_avgint,	/* MRUSORT_AVGINT */
382	&qcmp_mru_r_avgint,	/* MRUSORT_R_AVGINT */
383	&qcmp_mru_addr,		/* MRUSORT_ADDR */
384	&qcmp_mru_r_addr,	/* MRUSORT_R_ADDR */
385	&qcmp_mru_count,	/* MRUSORT_COUNT */
386	&qcmp_mru_r_count,	/* MRUSORT_R_COUNT */
387};
388
389/*
390 * NULL-pointer safe FILE I/O: use stderr if no file supplied.
391 */
392static	int
393xprintf(
394	FILE *		ofp,
395	char const *	fmt,
396	...
397	)
398{
399	va_list	va;
400	int	rc;
401
402	va_start(va, fmt);
403	rc = vfprintf((ofp ? ofp : stderr), fmt, va);
404	va_end(va);
405	return rc;
406}
407
408static	int
409xputs(
410	char const *	str,
411	FILE *		ofp
412	)
413{
414	return fputs(str, (ofp ? ofp : stderr));
415}
416
417static	int
418xputc(
419	int	ch,
420	FILE *	ofp
421	)
422{
423	return fputc(ch, (ofp ? ofp : stderr));
424}
425
426/*
427 * checkassocid - return the association ID, checking to see if it is valid
428 */
429static associd_t
430checkassocid(
431	u_int32 value
432	)
433{
434	associd_t	associd;
435	u_long		ulvalue;
436
437	associd = (associd_t)value;
438	if (0 == associd || value != associd) {
439		ulvalue = value;
440		xprintf(stderr,
441			"***Invalid association ID %lu specified\n",
442			ulvalue);
443		return 0;
444	}
445
446	return associd;
447}
448
449
450/*
451 * findlistvar - Look for the named variable in a varlist.  If found,
452 *		 return a pointer to it.  Otherwise, if the list has
453 *		 slots available, return the pointer to the first free
454 *		 slot, or NULL if it's full.
455 */
456static struct varlist *
457findlistvar(
458	struct varlist *list,
459	char *name
460	)
461{
462	struct varlist *vl;
463
464	for (vl = list; vl < list + MAXLIST && vl->name != NULL; vl++)
465		if (!strcmp(name, vl->name))
466			return vl;
467	if (vl < list + MAXLIST)
468		return vl;
469
470	return NULL;
471}
472
473
474/*
475 * doaddvlist - add variable(s) to the variable list
476 */
477static void
478doaddvlist(
479	struct varlist *vlist,
480	const char *vars
481	)
482{
483	struct varlist *vl;
484	size_t len;
485	char *name;
486	char *value;
487
488	len = strlen(vars);
489	while (nextvar(&len, &vars, &name, &value)) {
490		INSIST(name && value);
491		vl = findlistvar(vlist, name);
492		if (NULL == vl) {
493			xprintf(stderr, "Variable list full\n");
494			return;
495		}
496
497		if (NULL == vl->name) {
498			vl->name = estrdup(name);
499		} else if (vl->value != NULL) {
500			free(vl->value);
501			vl->value = NULL;
502		}
503
504		if (value != NULL)
505			vl->value = estrdup(value);
506	}
507}
508
509
510/*
511 * dormvlist - remove variable(s) from the variable list
512 */
513static void
514dormvlist(
515	struct varlist *vlist,
516	const char *vars
517	)
518{
519	struct varlist *vl;
520	size_t len;
521	char *name;
522	char *value;
523
524	len = strlen(vars);
525	while (nextvar(&len, &vars, &name, &value)) {
526		INSIST(name && value);
527		vl = findlistvar(vlist, name);
528		if (vl == 0 || vl->name == 0) {
529			(void) xprintf(stderr, "Variable `%s' not found\n",
530				       name);
531		} else {
532			free((void *)(intptr_t)vl->name);
533			if (vl->value != 0)
534			    free(vl->value);
535			for ( ; (vl+1) < (g_varlist + MAXLIST)
536				      && (vl+1)->name != 0; vl++) {
537				vl->name = (vl+1)->name;
538				vl->value = (vl+1)->value;
539			}
540			vl->name = vl->value = 0;
541		}
542	}
543}
544
545
546/*
547 * doclearvlist - clear a variable list
548 */
549static void
550doclearvlist(
551	struct varlist *vlist
552	)
553{
554	register struct varlist *vl;
555
556	for (vl = vlist; vl < vlist + MAXLIST && vl->name != 0; vl++) {
557		free((void *)(intptr_t)vl->name);
558		vl->name = 0;
559		if (vl->value != 0) {
560			free(vl->value);
561			vl->value = 0;
562		}
563	}
564}
565
566
567/*
568 * makequerydata - form a data buffer to be included with a query
569 */
570static void
571makequerydata(
572	struct varlist *vlist,
573	size_t *datalen,
574	char *data
575	)
576{
577	register struct varlist *vl;
578	register char *cp, *cpend;
579	register size_t namelen, valuelen;
580	register size_t totallen;
581
582	cp = data;
583	cpend = data + *datalen;
584
585	for (vl = vlist; vl < vlist + MAXLIST && vl->name != 0; vl++) {
586		namelen = strlen(vl->name);
587		if (vl->value == 0)
588			valuelen = 0;
589		else
590			valuelen = strlen(vl->value);
591		totallen = namelen + valuelen + (valuelen != 0) + (cp != data);
592		if (cp + totallen > cpend) {
593		    xprintf(stderr,
594			    "***Ignoring variables starting with `%s'\n",
595			    vl->name);
596		    break;
597		}
598
599		if (cp != data)
600			*cp++ = ',';
601		memcpy(cp, vl->name, (size_t)namelen);
602		cp += namelen;
603		if (valuelen != 0) {
604			*cp++ = '=';
605			memcpy(cp, vl->value, (size_t)valuelen);
606			cp += valuelen;
607		}
608	}
609	*datalen = (size_t)(cp - data);
610}
611
612
613/*
614 * doquerylist - send a message including variables in a list
615 */
616static int
617doquerylist(
618	struct varlist *vlist,
619	int op,
620	associd_t associd,
621	int auth,
622	u_short *rstatus,
623	size_t *dsize,
624	const char **datap
625	)
626{
627	char data[CTL_MAX_DATA_LEN];
628	size_t datalen;
629
630	datalen = sizeof(data);
631	makequerydata(vlist, &datalen, data);
632
633	return doquery(op, associd, auth, datalen, data, rstatus, dsize,
634		       datap);
635}
636
637
638/*
639 * doprintvlist - print the variables on a list
640 */
641static void
642doprintvlist(
643	struct varlist *vlist,
644	FILE *fp
645	)
646{
647	size_t n;
648
649	if (NULL == vlist->name) {
650		xprintf(fp, "No variables on list\n");
651		return;
652	}
653	for (n = 0; n < MAXLIST && vlist[n].name != NULL; n++) {
654		if (NULL == vlist[n].value)
655			xprintf(fp, "%s\n", vlist[n].name);
656		else
657			xprintf(fp, "%s=%s\n", vlist[n].name,
658				vlist[n].value);
659	}
660}
661
662/*
663 * addvars - add variables to the variable list
664 */
665/*ARGSUSED*/
666static void
667addvars(
668	struct parse *pcmd,
669	FILE *fp
670	)
671{
672	doaddvlist(g_varlist, pcmd->argval[0].string);
673}
674
675
676/*
677 * rmvars - remove variables from the variable list
678 */
679/*ARGSUSED*/
680static void
681rmvars(
682	struct parse *pcmd,
683	FILE *fp
684	)
685{
686	dormvlist(g_varlist, pcmd->argval[0].string);
687}
688
689
690/*
691 * clearvars - clear the variable list
692 */
693/*ARGSUSED*/
694static void
695clearvars(
696	struct parse *pcmd,
697	FILE *fp
698	)
699{
700	doclearvlist(g_varlist);
701}
702
703
704/*
705 * showvars - show variables on the variable list
706 */
707/*ARGSUSED*/
708static void
709showvars(
710	struct parse *pcmd,
711	FILE *fp
712	)
713{
714	doprintvlist(g_varlist, fp);
715}
716
717
718/*
719 * dolist - send a request with the given list of variables
720 */
721static int
722dolist(
723	struct varlist *vlist,
724	associd_t associd,
725	int op,
726	int type,
727	FILE *fp
728	)
729{
730	const char *datap;
731	int res;
732	size_t dsize;
733	u_short rstatus;
734	int quiet;
735
736	/*
737	 * if we're asking for specific variables don't include the
738	 * status header line in the output.
739	 */
740	if (old_rv)
741		quiet = 0;
742	else
743		quiet = (vlist->name != NULL);
744
745	res = doquerylist(vlist, op, associd, 0, &rstatus, &dsize, &datap);
746
747	if (res != 0)
748		return 0;
749
750	if (numhosts > 1)
751		xprintf(fp, "server=%s ", currenthost);
752	if (dsize == 0) {
753		if (associd == 0)
754			xprintf(fp, "No system%s variables returned\n",
755				(type == TYPE_CLOCK) ? " clock" : "");
756		else
757			xprintf(fp,
758				"No information returned for%s association %u\n",
759				(type == TYPE_CLOCK) ? " clock" : "",
760				associd);
761		return 1;
762	}
763
764	if (!quiet)
765		xprintf(fp, "associd=%u ", associd);
766	printvars(dsize, datap, (int)rstatus, type, quiet, fp);
767	return 1;
768}
769
770
771/*
772 * readlist - send a read variables request with the variables on the list
773 */
774static void
775readlist(
776	struct parse *pcmd,
777	FILE *fp
778	)
779{
780	associd_t	associd;
781	int		type;
782
783	if (pcmd->nargs == 0) {
784		associd = 0;
785	} else {
786	  /* HMS: I think we want the u_int32 target here, not the u_long */
787		if (pcmd->argval[0].uval == 0)
788			associd = 0;
789		else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
790			return;
791	}
792
793	type = (0 == associd)
794		   ? TYPE_SYS
795		   : TYPE_PEER;
796	dolist(g_varlist, associd, CTL_OP_READVAR, type, fp);
797}
798
799
800/*
801 * writelist - send a write variables request with the variables on the list
802 */
803static void
804writelist(
805	struct parse *pcmd,
806	FILE *fp
807	)
808{
809	const char *datap;
810	int res;
811	associd_t associd;
812	size_t dsize;
813	u_short rstatus;
814
815	if (pcmd->nargs == 0) {
816		associd = 0;
817	} else {
818		/* HMS: Do we really want uval here? */
819		if (pcmd->argval[0].uval == 0)
820			associd = 0;
821		else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
822			return;
823	}
824
825	res = doquerylist(g_varlist, CTL_OP_WRITEVAR, associd, 1, &rstatus,
826			  &dsize, &datap);
827
828	if (res != 0)
829		return;
830
831	if (numhosts > 1)
832		(void) xprintf(fp, "server=%s ", currenthost);
833	if (dsize == 0)
834		(void) xprintf(fp, "done! (no data returned)\n");
835	else {
836		(void) xprintf(fp,"associd=%u ", associd);
837		printvars(dsize, datap, (int)rstatus,
838			  (associd != 0) ? TYPE_PEER : TYPE_SYS, 0, fp);
839	}
840	return;
841}
842
843
844/*
845 * readvar - send a read variables request with the specified variables
846 */
847static void
848readvar(
849	struct parse *pcmd,
850	FILE *fp
851	)
852{
853	associd_t	associd;
854	size_t		tmpcount;
855	size_t		u;
856	int		type;
857	struct varlist	tmplist[MAXLIST];
858
859
860	/* HMS: uval? */
861	if (pcmd->nargs == 0 || pcmd->argval[0].uval == 0)
862		associd = 0;
863	else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
864		return;
865
866	ZERO(tmplist);
867	if (pcmd->nargs > 1) {
868		tmpcount = pcmd->nargs - 1;
869		for (u = 0; u < tmpcount; u++)
870			doaddvlist(tmplist, pcmd->argval[1 + u].string);
871	}
872
873	type = (0 == associd)
874		   ? TYPE_SYS
875		   : TYPE_PEER;
876	dolist(tmplist, associd, CTL_OP_READVAR, type, fp);
877
878	doclearvlist(tmplist);
879}
880
881
882/*
883 * writevar - send a write variables request with the specified variables
884 */
885static void
886writevar(
887	struct parse *pcmd,
888	FILE *fp
889	)
890{
891	const char *datap;
892	int res;
893	associd_t associd;
894	int type;
895	size_t dsize;
896	u_short rstatus;
897	struct varlist tmplist[MAXLIST];
898
899	/* HMS: uval? */
900	if (pcmd->argval[0].uval == 0)
901		associd = 0;
902	else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
903		return;
904
905	ZERO(tmplist);
906	doaddvlist(tmplist, pcmd->argval[1].string);
907
908	res = doquerylist(tmplist, CTL_OP_WRITEVAR, associd, 1, &rstatus,
909			  &dsize, &datap);
910
911	doclearvlist(tmplist);
912
913	if (res != 0)
914		return;
915
916	if (numhosts > 1)
917		xprintf(fp, "server=%s ", currenthost);
918	if (dsize == 0)
919		xprintf(fp, "done! (no data returned)\n");
920	else {
921		xprintf(fp,"associd=%u ", associd);
922		type = (0 == associd)
923			   ? TYPE_SYS
924			   : TYPE_PEER;
925		printvars(dsize, datap, (int)rstatus, type, 0, fp);
926	}
927	return;
928}
929
930
931/*
932 * clocklist - send a clock variables request with the variables on the list
933 */
934static void
935clocklist(
936	struct parse *pcmd,
937	FILE *fp
938	)
939{
940	associd_t associd;
941
942	/* HMS: uval? */
943	if (pcmd->nargs == 0) {
944		associd = 0;
945	} else {
946		if (pcmd->argval[0].uval == 0)
947			associd = 0;
948		else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
949			return;
950	}
951
952	dolist(g_varlist, associd, CTL_OP_READCLOCK, TYPE_CLOCK, fp);
953}
954
955
956/*
957 * clockvar - send a clock variables request with the specified variables
958 */
959static void
960clockvar(
961	struct parse *pcmd,
962	FILE *fp
963	)
964{
965	associd_t associd;
966	struct varlist tmplist[MAXLIST];
967
968	/* HMS: uval? */
969	if (pcmd->nargs == 0 || pcmd->argval[0].uval == 0)
970		associd = 0;
971	else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
972		return;
973
974	ZERO(tmplist);
975	if (pcmd->nargs >= 2)
976		doaddvlist(tmplist, pcmd->argval[1].string);
977
978	dolist(tmplist, associd, CTL_OP_READCLOCK, TYPE_CLOCK, fp);
979
980	doclearvlist(tmplist);
981}
982
983
984/*
985 * findassidrange - verify a range of association ID's
986 */
987static int
988findassidrange(
989	u_int32	assid1,
990	u_int32	assid2,
991	int *	from,
992	int *	to,
993	FILE *	fp
994	)
995{
996	associd_t	assids[2];
997	int		ind[COUNTOF(assids)];
998	u_int		i;
999	size_t		a;
1000
1001
1002	if (0 == numassoc)
1003		dogetassoc(fp);
1004
1005	assids[0] = checkassocid(assid1);
1006	if (0 == assids[0])
1007		return 0;
1008	assids[1] = checkassocid(assid2);
1009	if (0 == assids[1])
1010		return 0;
1011
1012	for (a = 0; a < COUNTOF(assids); a++) {
1013		ind[a] = -1;
1014		for (i = 0; i < numassoc; i++)
1015			if (assoc_cache[i].assid == assids[a])
1016				ind[a] = i;
1017	}
1018	for (a = 0; a < COUNTOF(assids); a++)
1019		if (-1 == ind[a]) {
1020			xprintf(stderr,
1021				"***Association ID %u not found in list\n",
1022				assids[a]);
1023			return 0;
1024		}
1025
1026	if (ind[0] < ind[1]) {
1027		*from = ind[0];
1028		*to = ind[1];
1029	} else {
1030		*to = ind[0];
1031		*from = ind[1];
1032	}
1033	return 1;
1034}
1035
1036
1037
1038/*
1039 * mreadlist - send a read variables request for multiple associations
1040 */
1041static void
1042mreadlist(
1043	struct parse *pcmd,
1044	FILE *fp
1045	)
1046{
1047	int i;
1048	int from;
1049	int to;
1050
1051	if (!findassidrange(pcmd->argval[0].uval, pcmd->argval[1].uval,
1052			    &from, &to, fp))
1053		return;
1054
1055	for (i = from; i <= to; i++) {
1056		if (i != from)
1057			xprintf(fp, "\n");
1058		if (!dolist(g_varlist, assoc_cache[i].assid,
1059			    CTL_OP_READVAR, TYPE_PEER, fp))
1060			return;
1061	}
1062	return;
1063}
1064
1065
1066/*
1067 * mreadvar - send a read variables request for multiple associations
1068 */
1069static void
1070mreadvar(
1071	struct parse *pcmd,
1072	FILE *fp
1073	)
1074{
1075	int i;
1076	int from;
1077	int to;
1078	struct varlist tmplist[MAXLIST];
1079	struct varlist *pvars;
1080
1081	if (!findassidrange(pcmd->argval[0].uval, pcmd->argval[1].uval,
1082				&from, &to, fp))
1083		return;
1084
1085	ZERO(tmplist);
1086	if (pcmd->nargs >= 3) {
1087		doaddvlist(tmplist, pcmd->argval[2].string);
1088		pvars = tmplist;
1089	} else {
1090		pvars = g_varlist;
1091	}
1092
1093	for (i = from; i <= to; i++) {
1094		if (!dolist(pvars, assoc_cache[i].assid, CTL_OP_READVAR,
1095			    TYPE_PEER, fp))
1096			break;
1097	}
1098
1099	if (pvars == tmplist)
1100		doclearvlist(tmplist);
1101
1102	return;
1103}
1104
1105
1106/*
1107 * dogetassoc - query the host for its list of associations
1108 */
1109int
1110dogetassoc(
1111	FILE *fp
1112	)
1113{
1114	const char *datap;
1115	const u_short *pus;
1116	int res;
1117	size_t dsize;
1118	u_short rstatus;
1119
1120	res = doquery(CTL_OP_READSTAT, 0, 0, 0, (char *)0, &rstatus,
1121			  &dsize, &datap);
1122
1123	if (res != 0)
1124		return 0;
1125
1126	if (dsize == 0) {
1127		if (numhosts > 1)
1128			xprintf(fp, "server=%s ", currenthost);
1129		xprintf(fp, "No association ID's returned\n");
1130		return 0;
1131	}
1132
1133	if (dsize & 0x3) {
1134		if (numhosts > 1)
1135			xprintf(stderr, "server=%s ", currenthost);
1136		xprintf(stderr,
1137			"***Server returned %zu octets, should be multiple of 4\n",
1138			dsize);
1139		return 0;
1140	}
1141
1142	numassoc = 0;
1143
1144	while (dsize > 0) {
1145		if (numassoc >= assoc_cache_slots) {
1146			grow_assoc_cache();
1147		}
1148		pus = (const void *)datap;
1149		assoc_cache[numassoc].assid = ntohs(*pus);
1150		datap += sizeof(*pus);
1151		pus = (const void *)datap;
1152		assoc_cache[numassoc].status = ntohs(*pus);
1153		datap += sizeof(*pus);
1154		dsize -= 2 * sizeof(*pus);
1155		if (debug) {
1156			xprintf(stderr, "[%u] ",
1157				assoc_cache[numassoc].assid);
1158		}
1159		numassoc++;
1160	}
1161	if (debug) {
1162		xprintf(stderr, "\n%d associations total\n", numassoc);
1163	}
1164	sortassoc();
1165	return 1;
1166}
1167
1168
1169/*
1170 * printassoc - print the current list of associations
1171 */
1172static void
1173printassoc(
1174	int showall,
1175	FILE *fp
1176	)
1177{
1178	register char *bp;
1179	u_int i;
1180	u_char statval;
1181	int event;
1182	u_long event_count;
1183	const char *conf;
1184	const char *reach;
1185	const char *auth;
1186	const char *condition = "";
1187	const char *last_event;
1188	char buf[128];
1189
1190	if (numassoc == 0) {
1191		(void) xprintf(fp, "No association ID's in list\n");
1192		return;
1193	}
1194
1195	/*
1196	 * Output a header
1197	 */
1198	(void) xprintf(fp,
1199			   "ind assid status  conf reach auth condition  last_event cnt\n");
1200	(void) xprintf(fp,
1201			   "===========================================================\n");
1202	for (i = 0; i < numassoc; i++) {
1203		statval = (u_char) CTL_PEER_STATVAL(assoc_cache[i].status);
1204		if (!showall && !(statval & (CTL_PST_CONFIG|CTL_PST_REACH)))
1205			continue;
1206		event = CTL_PEER_EVENT(assoc_cache[i].status);
1207		event_count = CTL_PEER_NEVNT(assoc_cache[i].status);
1208		if (statval & CTL_PST_CONFIG)
1209			conf = "yes";
1210		else
1211			conf = "no";
1212		if (statval & CTL_PST_BCAST) {
1213			reach = "none";
1214			if (statval & CTL_PST_AUTHENABLE)
1215				auth = "yes";
1216			else
1217				auth = "none";
1218		} else {
1219			if (statval & CTL_PST_REACH)
1220				reach = "yes";
1221			else
1222				reach = "no";
1223			if (statval & CTL_PST_AUTHENABLE) {
1224				if (statval & CTL_PST_AUTHENTIC)
1225					auth = "ok ";
1226				else
1227					auth = "bad";
1228			} else {
1229				auth = "none";
1230			}
1231		}
1232		if (pktversion > NTP_OLDVERSION) {
1233			switch (statval & 0x7) {
1234
1235			case CTL_PST_SEL_REJECT:
1236				condition = "reject";
1237				break;
1238
1239			case CTL_PST_SEL_SANE:
1240				condition = "falsetick";
1241				break;
1242
1243			case CTL_PST_SEL_CORRECT:
1244				condition = "excess";
1245				break;
1246
1247			case CTL_PST_SEL_SELCAND:
1248				condition = "outlier";
1249				break;
1250
1251			case CTL_PST_SEL_SYNCCAND:
1252				condition = "candidate";
1253				break;
1254
1255			case CTL_PST_SEL_EXCESS:
1256				condition = "backup";
1257				break;
1258
1259			case CTL_PST_SEL_SYSPEER:
1260				condition = "sys.peer";
1261				break;
1262
1263			case CTL_PST_SEL_PPS:
1264				condition = "pps.peer";
1265				break;
1266			}
1267		} else {
1268			switch (statval & 0x3) {
1269
1270			case OLD_CTL_PST_SEL_REJECT:
1271				if (!(statval & OLD_CTL_PST_SANE))
1272					condition = "insane";
1273				else if (!(statval & OLD_CTL_PST_DISP))
1274					condition = "hi_disp";
1275				else
1276					condition = "";
1277				break;
1278
1279			case OLD_CTL_PST_SEL_SELCAND:
1280				condition = "sel_cand";
1281				break;
1282
1283			case OLD_CTL_PST_SEL_SYNCCAND:
1284				condition = "sync_cand";
1285				break;
1286
1287			case OLD_CTL_PST_SEL_SYSPEER:
1288				condition = "sys_peer";
1289				break;
1290			}
1291		}
1292		switch (PEER_EVENT|event) {
1293
1294		case PEVNT_MOBIL:
1295			last_event = "mobilize";
1296			break;
1297
1298		case PEVNT_DEMOBIL:
1299			last_event = "demobilize";
1300			break;
1301
1302		case PEVNT_REACH:
1303			last_event = "reachable";
1304			break;
1305
1306		case PEVNT_UNREACH:
1307			last_event = "unreachable";
1308			break;
1309
1310		case PEVNT_RESTART:
1311			last_event = "restart";
1312			break;
1313
1314		case PEVNT_REPLY:
1315			last_event = "no_reply";
1316			break;
1317
1318		case PEVNT_RATE:
1319			last_event = "rate_exceeded";
1320			break;
1321
1322		case PEVNT_DENY:
1323			last_event = "access_denied";
1324			break;
1325
1326		case PEVNT_ARMED:
1327			last_event = "leap_armed";
1328			break;
1329
1330		case PEVNT_NEWPEER:
1331			last_event = "sys_peer";
1332			break;
1333
1334		case PEVNT_CLOCK:
1335			last_event = "clock_alarm";
1336			break;
1337
1338		default:
1339			last_event = "";
1340			break;
1341		}
1342		snprintf(buf, sizeof(buf),
1343			 "%3d %5u  %04x   %3.3s  %4s  %4.4s %9.9s %11s %2lu",
1344			 i + 1, assoc_cache[i].assid,
1345			 assoc_cache[i].status, conf, reach, auth,
1346			 condition, last_event, event_count);
1347		bp = buf + strlen(buf);
1348		while (bp > buf && ' ' == bp[-1])
1349			--bp;
1350		bp[0] = '\0';
1351		xprintf(fp, "%s\n", buf);
1352	}
1353}
1354
1355
1356/*
1357 * associations - get, record and print a list of associations
1358 */
1359/*ARGSUSED*/
1360static void
1361associations(
1362	struct parse *pcmd,
1363	FILE *fp
1364	)
1365{
1366	if (dogetassoc(fp))
1367		printassoc(0, fp);
1368}
1369
1370
1371/*
1372 * lassociations - get, record and print a long list of associations
1373 */
1374/*ARGSUSED*/
1375static void
1376lassociations(
1377	struct parse *pcmd,
1378	FILE *fp
1379	)
1380{
1381	if (dogetassoc(fp))
1382		printassoc(1, fp);
1383}
1384
1385
1386/*
1387 * passociations - print the association list
1388 */
1389/*ARGSUSED*/
1390static void
1391passociations(
1392	struct parse *pcmd,
1393	FILE *fp
1394	)
1395{
1396	printassoc(0, fp);
1397}
1398
1399
1400/*
1401 * lpassociations - print the long association list
1402 */
1403/*ARGSUSED*/
1404static void
1405lpassociations(
1406	struct parse *pcmd,
1407	FILE *fp
1408	)
1409{
1410	printassoc(1, fp);
1411}
1412
1413
1414/*
1415 *  saveconfig - dump ntp server configuration to server file
1416 */
1417static void
1418saveconfig(
1419	struct parse *pcmd,
1420	FILE *fp
1421	)
1422{
1423	const char *datap;
1424	int res;
1425	size_t dsize;
1426	u_short rstatus;
1427
1428	if (0 == pcmd->nargs)
1429		return;
1430
1431	res = doquery(CTL_OP_SAVECONFIG, 0, 1,
1432		      strlen(pcmd->argval[0].string),
1433		      pcmd->argval[0].string, &rstatus, &dsize,
1434		      &datap);
1435
1436	if (res != 0)
1437		return;
1438
1439	if (0 == dsize)
1440		xprintf(fp, "(no response message, curiously)");
1441	else
1442		xprintf(fp, "%.*s", (int)dsize, datap); /* cast is wobbly */
1443}
1444
1445
1446#ifdef	UNUSED
1447/*
1448 * radiostatus - print the radio status returned by the server
1449 */
1450/*ARGSUSED*/
1451static void
1452radiostatus(
1453	struct parse *pcmd,
1454	FILE *fp
1455	)
1456{
1457	char *datap;
1458	int res;
1459	int dsize;
1460	u_short rstatus;
1461
1462	res = doquery(CTL_OP_READCLOCK, 0, 0, 0, (char *)0, &rstatus,
1463			  &dsize, &datap);
1464
1465	if (res != 0)
1466		return;
1467
1468	if (numhosts > 1)
1469		(void) xprintf(fp, "server=%s ", currenthost);
1470	if (dsize == 0) {
1471		(void) xprintf(fp, "No radio status string returned\n");
1472		return;
1473	}
1474
1475	asciize(dsize, datap, fp);
1476}
1477#endif	/* UNUSED */
1478
1479/*
1480 * when - print how long its been since his last packet arrived
1481 */
1482static long
1483when(
1484	l_fp *ts,
1485	l_fp *rec,
1486	l_fp *reftime
1487	)
1488{
1489	l_fp *lasttime;
1490
1491	if (rec->l_ui != 0)
1492		lasttime = rec;
1493	else if (reftime->l_ui != 0)
1494		lasttime = reftime;
1495	else
1496		return 0;
1497
1498	if (ts->l_ui < lasttime->l_ui)
1499		return -1;
1500	return (ts->l_ui - lasttime->l_ui);
1501}
1502
1503
1504/*
1505 * Pretty-print an interval into the given buffer, in a human-friendly format.
1506 */
1507static char *
1508prettyinterval(
1509	char *buf,
1510	size_t cb,
1511	long diff
1512	)
1513{
1514	if (diff <= 0) {
1515		buf[0] = '-';
1516		buf[1] = 0;
1517		return buf;
1518	}
1519
1520	if (diff <= 2048) {
1521		snprintf(buf, cb, "%u", (unsigned int)diff);
1522		return buf;
1523	}
1524
1525	diff = (diff + 29) / 60;
1526	if (diff <= 300) {
1527		snprintf(buf, cb, "%um", (unsigned int)diff);
1528		return buf;
1529	}
1530
1531	diff = (diff + 29) / 60;
1532	if (diff <= 96) {
1533		snprintf(buf, cb, "%uh", (unsigned int)diff);
1534		return buf;
1535	}
1536
1537	diff = (diff + 11) / 24;
1538	if (diff <= 999) {
1539		snprintf(buf, cb, "%ud", (unsigned int)diff);
1540		return buf;
1541	}
1542
1543	/* years are only approximated... */
1544	diff = (long)floor(diff / 365.25 + 0.5);
1545	if (diff <= 999) {
1546		snprintf(buf, cb, "%uy", (unsigned int)diff);
1547		return buf;
1548	}
1549	/* Ok, this amounts to infinity... */
1550	strlcpy(buf, "INF", cb);
1551	return buf;
1552}
1553
1554static char
1555decodeaddrtype(
1556	sockaddr_u *sock
1557	)
1558{
1559	char ch = '-';
1560	u_int32 dummy;
1561
1562	switch(AF(sock)) {
1563	case AF_INET:
1564		dummy = SRCADR(sock);
1565		ch = (char)(((dummy&0xf0000000)==0xe0000000) ? 'm' :
1566			((dummy&0x000000ff)==0x000000ff) ? 'b' :
1567			((dummy&0xffffffff)==0x7f000001) ? 'l' :
1568			((dummy&0xffffffe0)==0x00000000) ? '-' :
1569			'u');
1570		break;
1571	case AF_INET6:
1572		if (IN6_IS_ADDR_MULTICAST(PSOCK_ADDR6(sock)))
1573			ch = 'm';
1574		else
1575			ch = 'u';
1576		break;
1577	default:
1578		ch = '-';
1579		break;
1580	}
1581	return ch;
1582}
1583
1584/*
1585 * A list of variables required by the peers command
1586 */
1587struct varlist opeervarlist[] = {
1588	{ "srcadr",	0 },	/* 0 */
1589	{ "dstadr",	0 },	/* 1 */
1590	{ "stratum",	0 },	/* 2 */
1591	{ "hpoll",	0 },	/* 3 */
1592	{ "ppoll",	0 },	/* 4 */
1593	{ "reach",	0 },	/* 5 */
1594	{ "delay",	0 },	/* 6 */
1595	{ "offset",	0 },	/* 7 */
1596	{ "jitter",	0 },	/* 8 */
1597	{ "dispersion", 0 },	/* 9 */
1598	{ "rec",	0 },	/* 10 */
1599	{ "reftime",	0 },	/* 11 */
1600	{ "srcport",	0 },	/* 12 */
1601	{ "hmode",	0 },	/* 13 */
1602	{ 0,		0 }
1603};
1604
1605struct varlist peervarlist[] = {
1606	{ "srcadr",	0 },	/* 0 */
1607	{ "refid",	0 },	/* 1 */
1608	{ "stratum",	0 },	/* 2 */
1609	{ "hpoll",	0 },	/* 3 */
1610	{ "ppoll",	0 },	/* 4 */
1611	{ "reach",	0 },	/* 5 */
1612	{ "delay",	0 },	/* 6 */
1613	{ "offset",	0 },	/* 7 */
1614	{ "jitter",	0 },	/* 8 */
1615	{ "dispersion", 0 },	/* 9 */
1616	{ "rec",	0 },	/* 10 */
1617	{ "reftime",	0 },	/* 11 */
1618	{ "srcport",	0 },	/* 12 */
1619	{ "hmode",	0 },	/* 13 */
1620	{ "srchost",	0 },	/* 14 */
1621	{ 0,		0 }
1622};
1623
1624struct varlist apeervarlist[] = {
1625	{ "srcadr",	0 },	/* 0 */
1626	{ "refid",	0 },	/* 1 */
1627	{ "assid",	0 },	/* 2 */
1628	{ "stratum",	0 },	/* 3 */
1629	{ "hpoll",	0 },	/* 4 */
1630	{ "ppoll",	0 },	/* 5 */
1631	{ "reach",	0 },	/* 6 */
1632	{ "delay",	0 },	/* 7 */
1633	{ "offset",	0 },	/* 8 */
1634	{ "jitter",	0 },	/* 9 */
1635	{ "dispersion", 0 },	/* 10 */
1636	{ "rec",	0 },	/* 11 */
1637	{ "reftime",	0 },	/* 12 */
1638	{ "srcport",	0 },	/* 13 */
1639	{ "hmode",	0 },	/* 14 */
1640	{ "srchost",	0 },	/* 15 */
1641	{ 0,		0 }
1642};
1643
1644
1645/*
1646 * Decode an incoming data buffer and print a line in the peer list
1647 */
1648static int
1649doprintpeers(
1650	struct varlist *pvl,
1651	int associd,
1652	int rstatus,
1653	size_t datalen,
1654	const char *data,
1655	FILE *fp,
1656	int af
1657	)
1658{
1659	char *name;
1660	char *value = NULL;
1661	int c;
1662	size_t len;
1663	int have_srchost;
1664	int have_dstadr;
1665	int have_da_rid;
1666	int have_jitter;
1667	sockaddr_u srcadr;
1668	sockaddr_u dstadr;
1669	sockaddr_u dum_store;
1670	sockaddr_u refidadr;
1671	long hmode = 0;
1672	u_long srcport = 0;
1673	u_int32 u32;
1674	const char *dstadr_refid = "0.0.0.0";
1675	const char *serverlocal;
1676	size_t drlen;
1677	u_long stratum = 0;
1678	long ppoll = 0;
1679	long hpoll = 0;
1680	u_long reach = 0;
1681	l_fp estoffset;
1682	l_fp estdelay;
1683	l_fp estjitter;
1684	l_fp estdisp;
1685	l_fp reftime;
1686	l_fp rec;
1687	l_fp ts;
1688	u_long poll_sec;
1689	u_long flash = 0;
1690	char type = '?';
1691	char clock_name[LENHOSTNAME];
1692	char whenbuf[12], pollbuf[12];
1693	/* [Bug 3482] formally whenbuf & pollbuf should be able to hold
1694	 * a full signed int. Not that we would use that much string
1695	 * data for it...
1696	 */
1697	get_systime(&ts);
1698
1699	have_srchost = FALSE;
1700	have_dstadr = FALSE;
1701	have_da_rid = FALSE;
1702	have_jitter = FALSE;
1703	ZERO_SOCK(&srcadr);
1704	ZERO_SOCK(&dstadr);
1705	clock_name[0] = '\0';
1706	ZERO(estoffset);
1707	ZERO(estdelay);
1708	ZERO(estjitter);
1709	ZERO(estdisp);
1710
1711	while (nextvar(&datalen, &data, &name, &value)) {
1712		INSIST(name && value);
1713		if (!strcmp("srcadr", name) ||
1714		    !strcmp("peeradr", name)) {
1715			if (!decodenetnum(value, &srcadr))
1716				xprintf(stderr, "malformed %s=%s\n",
1717					name, value);
1718		} else if (!strcmp("srchost", name)) {
1719			if (pvl == peervarlist || pvl == apeervarlist) {
1720				len = strlen(value);
1721				if (2 < len &&
1722				    (size_t)len < sizeof(clock_name)) {
1723					/* strip quotes */
1724					value++;
1725					len -= 2;
1726					memcpy(clock_name, value, len);
1727					clock_name[len] = '\0';
1728					have_srchost = TRUE;
1729				}
1730			}
1731		} else if (!strcmp("dstadr", name)) {
1732			if (decodenetnum(value, &dum_store)) {
1733				type = decodeaddrtype(&dum_store);
1734				have_dstadr = TRUE;
1735				dstadr = dum_store;
1736				if (pvl == opeervarlist) {
1737					have_da_rid = TRUE;
1738					dstadr_refid = trunc_left(stoa(&dstadr), 15);
1739				}
1740			}
1741		} else if (!strcmp("hmode", name)) {
1742			decodeint(value, &hmode);
1743		} else if (!strcmp("refid", name)) {
1744			if (   (pvl == peervarlist)
1745			    && (drefid == REFID_IPV4)) {
1746				have_da_rid = TRUE;
1747				drlen = strlen(value);
1748				if (0 == drlen) {
1749					dstadr_refid = "";
1750				} else if (drlen <= 4) {
1751					ZERO(u32);
1752					memcpy(&u32, value, drlen);
1753					dstadr_refid = refid_str(u32, 1);
1754				} else if (decodenetnum(value, &refidadr)) {
1755					if (SOCK_UNSPEC(&refidadr))
1756						dstadr_refid = "0.0.0.0";
1757					else if (ISREFCLOCKADR(&refidadr))
1758						dstadr_refid =
1759						    refnumtoa(&refidadr);
1760					else
1761						dstadr_refid =
1762						    stoa(&refidadr);
1763				} else {
1764					have_da_rid = FALSE;
1765				}
1766			} else if (   (pvl == apeervarlist)
1767				   || (pvl == peervarlist)) {
1768				/* no need to check drefid == REFID_HASH */
1769				have_da_rid = TRUE;
1770				drlen = strlen(value);
1771				if (0 == drlen) {
1772					dstadr_refid = "";
1773				} else if (drlen <= 4) {
1774					ZERO(u32);
1775					memcpy(&u32, value, drlen);
1776					dstadr_refid = refid_str(u32, 1);
1777					//xprintf(stderr, "apeervarlist S1 refid: value=<%s>\n", value);
1778				} else if (decodenetnum(value, &refidadr)) {
1779					if (SOCK_UNSPEC(&refidadr))
1780						dstadr_refid = "0.0.0.0";
1781					else if (ISREFCLOCKADR(&refidadr))
1782						dstadr_refid =
1783						    refnumtoa(&refidadr);
1784					else {
1785						char *buf = emalloc(10);
1786						int i = ntohl(refidadr.sa4.sin_addr.s_addr);
1787
1788						snprintf(buf, 10,
1789							"%0x", i);
1790						dstadr_refid = buf;
1791					//xprintf(stderr, "apeervarlist refid: value=<%x>\n", i);
1792					}
1793					//xprintf(stderr, "apeervarlist refid: value=<%s>\n", value);
1794				} else {
1795					have_da_rid = FALSE;
1796				}
1797			}
1798		} else if (!strcmp("stratum", name)) {
1799			decodeuint(value, &stratum);
1800		} else if (!strcmp("hpoll", name)) {
1801			if (decodeint(value, &hpoll) && hpoll < 0)
1802				hpoll = NTP_MINPOLL;
1803		} else if (!strcmp("ppoll", name)) {
1804			if (decodeint(value, &ppoll) && ppoll < 0)
1805				ppoll = NTP_MINPOLL;
1806		} else if (!strcmp("reach", name)) {
1807			decodeuint(value, &reach);
1808		} else if (!strcmp("delay", name)) {
1809			decodetime(value, &estdelay);
1810		} else if (!strcmp("offset", name)) {
1811			decodetime(value, &estoffset);
1812		} else if (!strcmp("jitter", name)) {
1813			if ((pvl == peervarlist || pvl == apeervarlist)
1814			    && decodetime(value, &estjitter))
1815				have_jitter = 1;
1816		} else if (!strcmp("rootdisp", name) ||
1817			   !strcmp("dispersion", name)) {
1818			decodetime(value, &estdisp);
1819		} else if (!strcmp("rec", name)) {
1820			decodets(value, &rec);
1821		} else if (!strcmp("srcport", name) ||
1822			   !strcmp("peerport", name)) {
1823			decodeuint(value, &srcport);
1824		} else if (!strcmp("reftime", name)) {
1825			if (!decodets(value, &reftime))
1826				L_CLR(&reftime);
1827		} else if (!strcmp("flash", name)) {
1828		    decodeuint(value, &flash);
1829		} else {
1830			// xprintf(stderr, "UNRECOGNIZED name=%s ", name);
1831		}
1832	}
1833
1834	/*
1835	 * hmode gives the best guidance for the t column.  If the response
1836	 * did not include hmode we'll use the old decodeaddrtype() result.
1837	 */
1838	switch (hmode) {
1839
1840	case MODE_BCLIENT:
1841		/* broadcastclient or multicastclient */
1842		type = 'b';
1843		break;
1844
1845	case MODE_BROADCAST:
1846		/* broadcast or multicast server */
1847		if (IS_MCAST(&srcadr))
1848			type = 'M';
1849		else
1850			type = 'B';
1851		break;
1852
1853	case MODE_CLIENT:
1854		if (ISREFCLOCKADR(&srcadr))
1855			type = 'l';	/* local refclock*/
1856		else if (SOCK_UNSPEC(&srcadr))
1857			type = 'p';	/* pool */
1858		else if (IS_MCAST(&srcadr))
1859			type = 'a';	/* manycastclient */
1860		else
1861			type = 'u';	/* unicast */
1862		break;
1863
1864	case MODE_ACTIVE:
1865		type = 's';		/* symmetric active */
1866		break;			/* configured */
1867
1868	case MODE_PASSIVE:
1869		type = 'S';		/* symmetric passive */
1870		break;			/* ephemeral */
1871	}
1872
1873	/*
1874	 * Got everything, format the line
1875	 */
1876	poll_sec = 1 << min(ppoll, hpoll);
1877	if (pktversion > NTP_OLDVERSION)
1878		c = flash3[CTL_PEER_STATVAL(rstatus) & 0x7];
1879	else
1880		c = flash2[CTL_PEER_STATVAL(rstatus) & 0x3];
1881	if (numhosts > 1) {
1882		if ((pvl == peervarlist || pvl == apeervarlist)
1883		    && have_dstadr) {
1884			serverlocal = nntohost_col(&dstadr,
1885			    (size_t)min(LIB_BUFLENGTH - 1, maxhostlen),
1886			    TRUE);
1887		} else {
1888			if (currenthostisnum)
1889				serverlocal = trunc_left(currenthost,
1890							 maxhostlen);
1891			else
1892				serverlocal = currenthost;
1893		}
1894		xprintf(fp, "%-*s ", (int)maxhostlen, serverlocal);
1895	}
1896	if (AF_UNSPEC == af || AF(&srcadr) == af) {
1897		if (!have_srchost)
1898			strlcpy(clock_name, nntohost(&srcadr),
1899				sizeof(clock_name));
1900		/* wide and long source - space over on next line */
1901		/* allow for host + sp if > 1 and regular tally + source + sp */
1902		if (wideremote && 15 < strlen(clock_name))
1903			xprintf(fp, "%c%s\n%*s", c, clock_name,
1904				((numhosts > 1) ? (int)maxhostlen + 1 : 0)
1905							+ 1 + 15 + 1, "");
1906		else
1907			xprintf(fp, "%c%-15.15s ", c, clock_name);
1908		if ((flash & TEST12) && (pvl != opeervarlist)) {
1909			drlen = xprintf(fp, "(loop)");
1910		} else if (!have_da_rid) {
1911			drlen = 0;
1912		} else {
1913			drlen = strlen(dstadr_refid);
1914			makeascii(drlen, dstadr_refid, fp);
1915		}
1916		if (pvl == apeervarlist) {
1917			while (drlen++ < 9)
1918				xputc(' ', fp);
1919			xprintf(fp, "%-6d", associd);
1920		} else {
1921			while (drlen++ < 15)
1922				xputc(' ', fp);
1923		}
1924		xprintf(fp,
1925			" %2ld %c %4.4s %4.4s  %3lo  %7.7s %8.7s %7.7s\n",
1926			stratum, type,
1927			prettyinterval(whenbuf, sizeof(whenbuf),
1928				       when(&ts, &rec, &reftime)),
1929			prettyinterval(pollbuf, sizeof(pollbuf),
1930				       (int)poll_sec),
1931			reach, ulfptoms(&estdelay, 3),
1932			lfptoms(&estoffset, 3),
1933			(have_jitter)
1934			    ? ulfptoms(&estjitter, 3)
1935			    : ulfptoms(&estdisp, 3));
1936		return (1);
1937	}
1938	else
1939		return(1);
1940}
1941
1942
1943/*
1944 * dogetpeers - given an association ID, read and print the spreadsheet
1945 *		peer variables.
1946 */
1947static int
1948dogetpeers(
1949	struct varlist *pvl,
1950	associd_t associd,
1951	FILE *fp,
1952	int af
1953	)
1954{
1955	const char *datap;
1956	int res;
1957	size_t dsize;
1958	u_short rstatus;
1959
1960#ifdef notdef
1961	res = doquerylist(pvl, CTL_OP_READVAR, associd, 0, &rstatus,
1962			  &dsize, &datap);
1963#else
1964	/*
1965	 * Damn fuzzballs
1966	 */
1967	res = doquery(CTL_OP_READVAR, associd, 0, 0, NULL, &rstatus,
1968			  &dsize, &datap);
1969#endif
1970
1971	if (res != 0)
1972		return 0;
1973
1974	if (dsize == 0) {
1975		if (numhosts > 1)
1976			xprintf(stderr, "server=%s ", currenthost);
1977		xprintf(stderr,
1978			"***No information returned for association %u\n",
1979			associd);
1980		return 0;
1981	}
1982
1983	return doprintpeers(pvl, associd, (int)rstatus, dsize, datap,
1984			    fp, af);
1985}
1986
1987
1988/*
1989 * peers - print a peer spreadsheet
1990 */
1991static void
1992dopeers(
1993	int showall,
1994	FILE *fp,
1995	int af
1996	)
1997{
1998	u_int		u;
1999	char		fullname[LENHOSTNAME];
2000	sockaddr_u	netnum;
2001	const char *	name_or_num;
2002	size_t		sl;
2003
2004	if (!dogetassoc(fp))
2005		return;
2006
2007	for (u = 0; u < numhosts; u++) {
2008		if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
2009			name_or_num = nntohost(&netnum);
2010			sl = strlen(name_or_num);
2011			maxhostlen = max(maxhostlen, sl);
2012		}
2013	}
2014	if (numhosts > 1)
2015		xprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2016			"server (local)");
2017	xprintf(fp,
2018		"     remote           refid      st t when poll reach   delay   offset  jitter\n");
2019	if (numhosts > 1)
2020		for (u = 0; u <= maxhostlen; u++)
2021			xprintf(fp, "=");
2022	xprintf(fp,
2023		"==============================================================================\n");
2024
2025	for (u = 0; u < numassoc; u++) {
2026		if (!showall &&
2027		    !(CTL_PEER_STATVAL(assoc_cache[u].status)
2028		      & (CTL_PST_CONFIG|CTL_PST_REACH))) {
2029			if (debug)
2030				xprintf(stderr, "eliding [%d]\n",
2031					(int)assoc_cache[u].assid);
2032			continue;
2033		}
2034		if (!dogetpeers(peervarlist, (int)assoc_cache[u].assid,
2035				fp, af))
2036			return;
2037	}
2038	return;
2039}
2040
2041
2042/*
2043 * doapeers - print a peer spreadsheet with assocIDs
2044 */
2045static void
2046doapeers(
2047	int showall,
2048	FILE *fp,
2049	int af
2050	)
2051{
2052	u_int		u;
2053	char		fullname[LENHOSTNAME];
2054	sockaddr_u	netnum;
2055	const char *	name_or_num;
2056	size_t		sl;
2057
2058	if (!dogetassoc(fp))
2059		return;
2060
2061	for (u = 0; u < numhosts; u++) {
2062		if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
2063			name_or_num = nntohost(&netnum);
2064			sl = strlen(name_or_num);
2065			maxhostlen = max(maxhostlen, sl);
2066		}
2067	}
2068	if (numhosts > 1)
2069		xprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2070			"server (local)");
2071	xprintf(fp,
2072		"     remote       refid   assid  st t when poll reach   delay   offset  jitter\n");
2073	if (numhosts > 1)
2074		for (u = 0; u <= maxhostlen; u++)
2075			xprintf(fp, "=");
2076	xprintf(fp,
2077		"==============================================================================\n");
2078
2079	for (u = 0; u < numassoc; u++) {
2080		if (!showall &&
2081		    !(CTL_PEER_STATVAL(assoc_cache[u].status)
2082		      & (CTL_PST_CONFIG|CTL_PST_REACH))) {
2083			if (debug)
2084				xprintf(stderr, "eliding [%d]\n",
2085					(int)assoc_cache[u].assid);
2086			continue;
2087		}
2088		if (!dogetpeers(apeervarlist, (int)assoc_cache[u].assid,
2089				fp, af))
2090			return;
2091	}
2092	return;
2093}
2094
2095
2096/*
2097 * peers - print a peer spreadsheet
2098 */
2099/*ARGSUSED*/
2100static void
2101peers(
2102	struct parse *pcmd,
2103	FILE *fp
2104	)
2105{
2106	if (drefid == REFID_HASH) {
2107		apeers(pcmd, fp);
2108	} else {
2109		int af = 0;
2110
2111		if (pcmd->nargs == 1) {
2112			if (pcmd->argval->ival == 6)
2113				af = AF_INET6;
2114			else
2115				af = AF_INET;
2116		}
2117		dopeers(0, fp, af);
2118	}
2119}
2120
2121
2122/*
2123 * apeers - print a peer spreadsheet, with assocIDs
2124 */
2125/*ARGSUSED*/
2126static void
2127apeers(
2128	struct parse *pcmd,
2129	FILE *fp
2130	)
2131{
2132	int af = 0;
2133
2134	if (pcmd->nargs == 1) {
2135		if (pcmd->argval->ival == 6)
2136			af = AF_INET6;
2137		else
2138			af = AF_INET;
2139	}
2140	doapeers(0, fp, af);
2141}
2142
2143
2144/*
2145 * lpeers - print a peer spreadsheet including all fuzzball peers
2146 */
2147/*ARGSUSED*/
2148static void
2149lpeers(
2150	struct parse *pcmd,
2151	FILE *fp
2152	)
2153{
2154	int af = 0;
2155
2156	if (pcmd->nargs == 1) {
2157		if (pcmd->argval->ival == 6)
2158			af = AF_INET6;
2159		else
2160			af = AF_INET;
2161	}
2162	dopeers(1, fp, af);
2163}
2164
2165
2166/*
2167 * opeers - print a peer spreadsheet
2168 */
2169static void
2170doopeers(
2171	int showall,
2172	FILE *fp,
2173	int af
2174	)
2175{
2176	u_int i;
2177	char fullname[LENHOSTNAME];
2178	sockaddr_u netnum;
2179
2180	if (!dogetassoc(fp))
2181		return;
2182
2183	for (i = 0; i < numhosts; ++i) {
2184		if (getnetnum(chosts[i].name, &netnum, fullname, af))
2185			if (strlen(fullname) > maxhostlen)
2186				maxhostlen = strlen(fullname);
2187	}
2188	if (numhosts > 1)
2189		xprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2190			"server");
2191	xprintf(fp,
2192	    "     remote           local      st t when poll reach   delay   offset    disp\n");
2193	if (numhosts > 1)
2194		for (i = 0; i <= maxhostlen; ++i)
2195			xprintf(fp, "=");
2196	xprintf(fp,
2197	    "==============================================================================\n");
2198
2199	for (i = 0; i < numassoc; i++) {
2200		if (!showall &&
2201		    !(CTL_PEER_STATVAL(assoc_cache[i].status) &
2202		      (CTL_PST_CONFIG | CTL_PST_REACH)))
2203			continue;
2204		if (!dogetpeers(opeervarlist, assoc_cache[i].assid, fp, af))
2205			return;
2206	}
2207	return;
2208}
2209
2210
2211/*
2212 * opeers - print a peer spreadsheet the old way
2213 */
2214/*ARGSUSED*/
2215static void
2216opeers(
2217	struct parse *pcmd,
2218	FILE *fp
2219	)
2220{
2221	int af = 0;
2222
2223	if (pcmd->nargs == 1) {
2224		if (pcmd->argval->ival == 6)
2225			af = AF_INET6;
2226		else
2227			af = AF_INET;
2228	}
2229	doopeers(0, fp, af);
2230}
2231
2232
2233/*
2234 * lopeers - print a peer spreadsheet including all fuzzball peers
2235 */
2236/*ARGSUSED*/
2237static void
2238lopeers(
2239	struct parse *pcmd,
2240	FILE *fp
2241	)
2242{
2243	int af = 0;
2244
2245	if (pcmd->nargs == 1) {
2246		if (pcmd->argval->ival == 6)
2247			af = AF_INET6;
2248		else
2249			af = AF_INET;
2250	}
2251	doopeers(1, fp, af);
2252}
2253
2254
2255/*
2256 * config - send a configuration command to a remote host
2257 */
2258static void
2259config (
2260	struct parse *pcmd,
2261	FILE *fp
2262	)
2263{
2264	const char *cfgcmd;
2265	u_short rstatus;
2266	size_t rsize;
2267	const char *rdata;
2268	char *resp;
2269	int res;
2270	int col;
2271	int i;
2272
2273	cfgcmd = pcmd->argval[0].string;
2274
2275	if (debug > 2)
2276		xprintf(stderr,
2277			"In Config\n"
2278			"Keyword = %s\n"
2279			"Command = %s\n", pcmd->keyword, cfgcmd);
2280
2281	res = doquery(CTL_OP_CONFIGURE, 0, 1,
2282		      strlen(cfgcmd), cfgcmd,
2283		      &rstatus, &rsize, &rdata);
2284
2285	if (res != 0)
2286		return;
2287
2288	if (rsize > 0 && '\n' == rdata[rsize - 1])
2289		rsize--;
2290
2291	resp = emalloc(rsize + 1);
2292	memcpy(resp, rdata, rsize);
2293	resp[rsize] = '\0';
2294
2295	col = -1;
2296	if (1 == sscanf(resp, "column %d syntax error", &col)
2297	    && col >= 0 && (size_t)col <= strlen(cfgcmd) + 1) {
2298		if (interactive)
2299			xputs("             *", stdout); /* "ntpq> :config " */
2300		else
2301			printf("%s\n", cfgcmd);
2302		for (i = 0; i < col; i++)
2303			xputc('_', stdout);
2304		xputs("^\n", stdout);
2305	}
2306	printf("%s\n", resp);
2307	free(resp);
2308}
2309
2310
2311/*
2312 * config_from_file - remotely configure an ntpd daemon using the
2313 * specified configuration file
2314 * SK: This function is a kludge at best and is full of bad design
2315 * bugs:
2316 * 1. ntpq uses UDP, which means that there is no guarantee of in-order,
2317 *    error-free delivery.
2318 * 2. The maximum length of a packet is constrained, and as a result, the
2319 *    maximum length of a line in a configuration file is constrained.
2320 *    Longer lines will lead to unpredictable results.
2321 * 3. Since this function is sending a line at a time, we can't update
2322 *    the control key through the configuration file (YUCK!!)
2323 *
2324 * Pearly: There are a few places where 'size_t' is cast to 'int' based
2325 * on the assumption that 'int' can hold the size of the involved
2326 * buffers without overflow.
2327 */
2328static void
2329config_from_file (
2330	struct parse *pcmd,
2331	FILE *fp
2332	)
2333{
2334	u_short rstatus;
2335	size_t rsize;
2336	const char *rdata;
2337	char * cp;
2338	int res;
2339	FILE *config_fd;
2340	char config_cmd[MAXLINE];
2341	size_t config_len;
2342	int i;
2343	int retry_limit;
2344
2345	if (debug > 2)
2346		xprintf(stderr,
2347			"In Config\n"
2348			"Keyword = %s\n"
2349			"Filename = %s\n", pcmd->keyword,
2350			pcmd->argval[0].string);
2351
2352	config_fd = fopen(pcmd->argval[0].string, "r");
2353	if (NULL == config_fd) {
2354		printf("ERROR!! Couldn't open file: %s\n",
2355		       pcmd->argval[0].string);
2356		return;
2357	}
2358
2359	printf("Sending configuration file, one line at a time.\n");
2360	i = 0;
2361	while (fgets(config_cmd, MAXLINE, config_fd) != NULL) {
2362		/* Eliminate comments first. */
2363		cp = strchr(config_cmd, '#');
2364		config_len = (NULL != cp)
2365		    ? (size_t)(cp - config_cmd)
2366		    : strlen(config_cmd);
2367
2368		/* [Bug 3015] make sure there's no trailing whitespace;
2369		 * the fix for [Bug 2853] on the server side forbids
2370		 * those. And don't transmit empty lines, as this would
2371		 * just be waste.
2372		 */
2373		while (config_len != 0 &&
2374		       (u_char)config_cmd[config_len-1] <= ' ')
2375			--config_len;
2376		config_cmd[config_len] = '\0';
2377
2378		++i;
2379		if (0 == config_len)
2380			continue;
2381
2382		retry_limit = 2;
2383		do
2384			res = doquery(CTL_OP_CONFIGURE, 0, 1,
2385				      config_len, config_cmd,
2386				      &rstatus, &rsize, &rdata);
2387		while (res != 0 && retry_limit--);
2388		if (res != 0) {
2389			printf("Line No: %d query failed: %.*s\n"
2390			       "Subsequent lines not sent.\n",
2391			       i, (int)config_len, config_cmd);
2392			fclose(config_fd);
2393			return;
2394		}
2395
2396		/* Right-strip the result code string, then output the
2397		 * last line executed, with result code. */
2398		while (rsize != 0 && (u_char)rdata[rsize - 1] <= ' ')
2399			--rsize;
2400		printf("Line No: %d %.*s: %.*s\n", i,
2401		       (int)rsize, rdata,
2402		       (int)config_len, config_cmd);
2403	}
2404	printf("Done sending file\n");
2405	fclose(config_fd);
2406}
2407
2408
2409static int
2410fetch_nonce(
2411	char *	nonce,
2412	size_t	cb_nonce
2413	)
2414{
2415	const char	nonce_eq[] = "nonce=";
2416	int		qres;
2417	u_short		rstatus;
2418	size_t		rsize;
2419	const char *	rdata;
2420	size_t		chars;
2421
2422	/*
2423	 * Retrieve a nonce specific to this client to demonstrate to
2424	 * ntpd that we're capable of receiving responses to our source
2425	 * IP address, and thereby unlikely to be forging the source.
2426	 */
2427	qres = doquery(CTL_OP_REQ_NONCE, 0, 0, 0, NULL, &rstatus,
2428		       &rsize, &rdata);
2429	if (qres) {
2430		xprintf(stderr, "nonce request failed\n");
2431		return FALSE;
2432	}
2433
2434	if ((size_t)rsize <= sizeof(nonce_eq) - 1 ||
2435	    strncmp(rdata, nonce_eq, sizeof(nonce_eq) - 1)) {
2436		xprintf(stderr, "unexpected nonce response format: %.*s\n",
2437			(int)rsize, rdata); /* cast is wobbly */
2438		return FALSE;
2439	}
2440	chars = rsize - (sizeof(nonce_eq) - 1);
2441	if (chars >= cb_nonce)
2442		return FALSE;
2443	memcpy(nonce, rdata + sizeof(nonce_eq) - 1, chars);
2444	nonce[chars] = '\0';
2445	while (chars > 0 &&
2446	       ('\r' == nonce[chars - 1] || '\n' == nonce[chars - 1])) {
2447		chars--;
2448		nonce[chars] = '\0';
2449	}
2450
2451	return TRUE;
2452}
2453
2454
2455/*
2456 * add_mru	Add and entry to mru list, hash table, and allocate
2457 *		and return a replacement.
2458 *		This is a helper for collect_mru_list().
2459 */
2460static mru *
2461add_mru(
2462	mru *add
2463	)
2464{
2465	u_short hash;
2466	mru *mon;
2467	mru *unlinked;
2468
2469
2470	hash = NTP_HASH_ADDR(&add->addr);
2471	/* see if we have it among previously received entries */
2472	for (mon = hash_table[hash]; mon != NULL; mon = mon->hlink)
2473		if (SOCK_EQ(&mon->addr, &add->addr))
2474			break;
2475	if (mon != NULL) {
2476		if (!L_ISGEQ(&add->first, &mon->first)) {
2477			xprintf(stderr,
2478				"add_mru duplicate %s new first ts %08x.%08x precedes prior %08x.%08x\n",
2479				sptoa(&add->addr), add->last.l_ui,
2480				add->last.l_uf, mon->last.l_ui,
2481				mon->last.l_uf);
2482			exit(1);
2483		}
2484		UNLINK_DLIST(mon, mlink);
2485		UNLINK_SLIST(unlinked, hash_table[hash], mon, hlink, mru);
2486		INSIST(unlinked == mon);
2487		mru_dupes++;
2488		TRACE(2, ("(updated from %08x.%08x) ", mon->last.l_ui,
2489		      mon->last.l_uf));
2490	}
2491	LINK_DLIST(mru_list, add, mlink);
2492	LINK_SLIST(hash_table[hash], add, hlink);
2493	TRACE(2, ("add_mru %08x.%08x c %d m %d v %d rest %x first %08x.%08x %s\n",
2494	      add->last.l_ui, add->last.l_uf, add->count,
2495	      (int)add->mode, (int)add->ver, (u_int)add->rs,
2496	      add->first.l_ui, add->first.l_uf, sptoa(&add->addr)));
2497	/* if we didn't update an existing entry, alloc replacement */
2498	if (NULL == mon) {
2499		mon = emalloc(sizeof(*mon));
2500		mru_count++;
2501	}
2502	ZERO(*mon);
2503
2504	return mon;
2505}
2506
2507
2508/* MGOT macro is specific to collect_mru_list() */
2509#define MGOT(bit)				\
2510	do {					\
2511		got |= (bit);			\
2512		if (MRU_GOT_ALL == got) {	\
2513			got = 0;		\
2514			mon = add_mru(mon);	\
2515			ci++;			\
2516		}				\
2517	} while (0)
2518
2519
2520int
2521mrulist_ctrl_c_hook(void)
2522{
2523	mrulist_interrupted = TRUE;
2524	return TRUE;
2525}
2526
2527
2528static int
2529collect_mru_list(
2530	const char *	parms,
2531	l_fp *		pnow
2532	)
2533{
2534	const u_int sleep_msecs = 5;
2535	static int ntpd_row_limit = MRU_ROW_LIMIT;
2536	int c_mru_l_rc;		/* this function's return code */
2537	u_char got;		/* MRU_GOT_* bits */
2538	time_t next_report;
2539	size_t cb;
2540	mru *mon;
2541	mru *head;
2542	mru *recent;
2543	int list_complete;
2544	char nonce[128];
2545	char buf[128];
2546	char req_buf[CTL_MAX_DATA_LEN];
2547	char *req;
2548	char *req_end;
2549	size_t chars;
2550	int qres;
2551	u_short rstatus;
2552	size_t rsize;
2553	const char *rdata;
2554	int limit;
2555	int frags;
2556	int cap_frags;
2557	char *tag;
2558	char *val;
2559	int si;		/* server index in response */
2560	int ci;		/* client (our) index for validation */
2561	int ri;		/* request index (.# suffix) */
2562	int mv;
2563	l_fp newest;
2564	l_fp last_older;
2565	sockaddr_u addr_older;
2566	int have_now;
2567	int have_addr_older;
2568	int have_last_older;
2569	u_int restarted_count;
2570	u_int nonce_uses;
2571	u_short hash;
2572	mru *unlinked;
2573
2574	if (!fetch_nonce(nonce, sizeof(nonce)))
2575		return FALSE;
2576
2577	nonce_uses = 0;
2578	restarted_count = 0;
2579	mru_count = 0;
2580	INIT_DLIST(mru_list, mlink);
2581	cb = NTP_HASH_SIZE * sizeof(*hash_table);
2582	INSIST(NULL == hash_table);
2583	hash_table = emalloc_zero(cb);
2584
2585	c_mru_l_rc = FALSE;
2586	list_complete = FALSE;
2587	have_now = FALSE;
2588	cap_frags = TRUE;
2589	got = 0;
2590	ri = 0;
2591	cb = sizeof(*mon);
2592	mon = emalloc_zero(cb);
2593	ZERO(*pnow);
2594	ZERO(last_older);
2595	next_report = time(NULL) + MRU_REPORT_SECS;
2596
2597	limit = min(3 * MAXFRAGS, ntpd_row_limit);
2598	frags = MAXFRAGS;
2599	snprintf(req_buf, sizeof(req_buf), "nonce=%s, frags=%d%s",
2600		 nonce, frags, parms);
2601	nonce_uses++;
2602
2603	while (TRUE) {
2604		if (debug)
2605			xprintf(stderr, "READ_MRU parms: %s\n", req_buf);
2606
2607		qres = doqueryex(CTL_OP_READ_MRU, 0, 0,
2608				 strlen(req_buf), req_buf,
2609				 &rstatus, &rsize, &rdata, TRUE);
2610
2611		if (CERR_UNKNOWNVAR == qres && ri > 0) {
2612			/*
2613			 * None of the supplied prior entries match, so
2614			 * toss them from our list and try again.
2615			 */
2616			if (debug)
2617				xprintf(stderr,
2618					"no overlap between %d prior entries and server MRU list\n",
2619					ri);
2620			while (ri--) {
2621				recent = HEAD_DLIST(mru_list, mlink);
2622				INSIST(recent != NULL);
2623				if (debug)
2624					xprintf(stderr,
2625						"tossing prior entry %s to resync\n",
2626						sptoa(&recent->addr));
2627				UNLINK_DLIST(recent, mlink);
2628				hash = NTP_HASH_ADDR(&recent->addr);
2629				UNLINK_SLIST(unlinked, hash_table[hash],
2630					     recent, hlink, mru);
2631				INSIST(unlinked == recent);
2632				free(recent);
2633				mru_count--;
2634			}
2635			if (NULL == HEAD_DLIST(mru_list, mlink)) {
2636				restarted_count++;
2637				if (restarted_count > 8) {
2638					xprintf(stderr,
2639						"Giving up after 8 restarts from the beginning.\n"
2640						"With high-traffic NTP servers, this can occur if the\n"
2641						"MRU list is limited to less than about 16 seconds' of\n"
2642						"entries.  See the 'mru' ntp.conf directive to adjust.\n");
2643					goto cleanup_return;
2644				}
2645				if (debug)
2646					xprintf(stderr,
2647						"--->   Restarting from the beginning, retry #%u\n",
2648						restarted_count);
2649			}
2650		} else if (CERR_UNKNOWNVAR == qres) {
2651			xprintf(stderr,
2652				"CERR_UNKNOWNVAR from ntpd but no priors given.\n");
2653			goto cleanup_return;
2654		} else if (CERR_BADVALUE == qres) {
2655			if (cap_frags) {
2656				cap_frags = FALSE;
2657				if (debug)
2658					xprintf(stderr,
2659						"Reverted to row limit from fragments limit.\n");
2660			} else {
2661				/* ntpd has lower cap on row limit */
2662				ntpd_row_limit--;
2663				limit = min(limit, ntpd_row_limit);
2664				if (debug)
2665					xprintf(stderr,
2666						"Row limit reduced to %d following CERR_BADVALUE.\n",
2667						limit);
2668			}
2669		} else if (ERR_INCOMPLETE == qres ||
2670			   ERR_TIMEOUT == qres) {
2671			/*
2672			 * Reduce the number of rows/frags requested by
2673			 * half to recover from lost response fragments.
2674			 */
2675			if (cap_frags) {
2676				frags = max(2, frags / 2);
2677				if (debug)
2678					xprintf(stderr,
2679						"Frag limit reduced to %d following incomplete response.\n",
2680						frags);
2681			} else {
2682				limit = max(2, limit / 2);
2683				if (debug)
2684					xprintf(stderr,
2685						"Row limit reduced to %d following incomplete response.\n",
2686						limit);
2687			}
2688		} else if (qres) {
2689			show_error_msg(qres, 0);
2690			goto cleanup_return;
2691		}
2692		/*
2693		 * This is a cheap cop-out implementation of rawmode
2694		 * output for mrulist.  A better approach would be to
2695		 * dump similar output after the list is collected by
2696		 * ntpq with a continuous sequence of indexes.  This
2697		 * cheap approach has indexes resetting to zero for
2698		 * each query/response, and duplicates are not
2699		 * coalesced.
2700		 */
2701		if (!qres && rawmode)
2702			printvars(rsize, rdata, rstatus, TYPE_SYS, 1, stdout);
2703		ci = 0;
2704		have_addr_older = FALSE;
2705		have_last_older = FALSE;
2706		while (!qres && nextvar(&rsize, &rdata, &tag, &val)) {
2707			INSIST(tag && val);
2708			if (debug > 1)
2709				xprintf(stderr, "nextvar gave: %s = %s\n",
2710					tag, val);
2711			switch(tag[0]) {
2712
2713			case 'a':
2714				if (!strcmp(tag, "addr.older")) {
2715					if (!have_last_older) {
2716						xprintf(stderr,
2717							"addr.older %s before last.older\n",
2718							val);
2719						goto cleanup_return;
2720					}
2721					if (!decodenetnum(val, &addr_older)) {
2722						xprintf(stderr,
2723							"addr.older %s garbled\n",
2724							val);
2725						goto cleanup_return;
2726					}
2727					hash = NTP_HASH_ADDR(&addr_older);
2728					for (recent = hash_table[hash];
2729					     recent != NULL;
2730					     recent = recent->hlink)
2731						if (ADDR_PORT_EQ(
2732						      &addr_older,
2733						      &recent->addr))
2734							break;
2735					if (NULL == recent) {
2736						xprintf(stderr,
2737							"addr.older %s not in hash table\n",
2738							val);
2739						goto cleanup_return;
2740					}
2741					if (!L_ISEQU(&last_older,
2742						     &recent->last)) {
2743						xprintf(stderr,
2744							"last.older %08x.%08x mismatches %08x.%08x expected.\n",
2745							last_older.l_ui,
2746							last_older.l_uf,
2747							recent->last.l_ui,
2748							recent->last.l_uf);
2749						goto cleanup_return;
2750					}
2751					have_addr_older = TRUE;
2752				} else if (1 != sscanf(tag, "addr.%d", &si)
2753					   || si != ci)
2754					goto nomatch;
2755				else if (decodenetnum(val, &mon->addr))
2756					MGOT(MRU_GOT_ADDR);
2757				break;
2758
2759			case 'l':
2760				if (!strcmp(tag, "last.older")) {
2761					if ('0' != val[0] ||
2762					    'x' != val[1] ||
2763					    !hextolfp(val + 2, &last_older)) {
2764						xprintf(stderr,
2765							"last.older %s garbled\n",
2766							val);
2767						goto cleanup_return;
2768					}
2769					have_last_older = TRUE;
2770				} else if (!strcmp(tag, "last.newest")) {
2771					if (0 != got) {
2772						xprintf(stderr,
2773							"last.newest %s before complete row, got = 0x%x\n",
2774							val, (u_int)got);
2775						goto cleanup_return;
2776					}
2777					if (!have_now) {
2778						xprintf(stderr,
2779							"last.newest %s before now=\n",
2780							val);
2781						goto cleanup_return;
2782					}
2783					head = HEAD_DLIST(mru_list, mlink);
2784					if (NULL != head) {
2785						if ('0' != val[0] ||
2786						    'x' != val[1] ||
2787						    !hextolfp(val + 2, &newest) ||
2788						    !L_ISEQU(&newest,
2789							     &head->last)) {
2790							xprintf(stderr,
2791								"last.newest %s mismatches %08x.%08x",
2792								val,
2793								head->last.l_ui,
2794								head->last.l_uf);
2795							goto cleanup_return;
2796						}
2797					}
2798					list_complete = TRUE;
2799				} else if (1 != sscanf(tag, "last.%d", &si) ||
2800					   si != ci || '0' != val[0] ||
2801					   'x' != val[1] ||
2802					   !hextolfp(val + 2, &mon->last)) {
2803					goto nomatch;
2804				} else {
2805					MGOT(MRU_GOT_LAST);
2806					/*
2807					 * allow interrupted retrieval,
2808					 * using most recent retrieved
2809					 * entry's last seen timestamp
2810					 * as the end of operation.
2811					 */
2812					*pnow = mon->last;
2813				}
2814				break;
2815
2816			case 'f':
2817				if (1 != sscanf(tag, "first.%d", &si) ||
2818				    si != ci || '0' != val[0] ||
2819				    'x' != val[1] ||
2820				    !hextolfp(val + 2, &mon->first))
2821					goto nomatch;
2822				MGOT(MRU_GOT_FIRST);
2823				break;
2824
2825			case 'n':
2826				if (!strcmp(tag, "nonce")) {
2827					strlcpy(nonce, val, sizeof(nonce));
2828					nonce_uses = 0;
2829					break; /* case */
2830				} else if (strcmp(tag, "now") ||
2831					   '0' != val[0] ||
2832					   'x' != val[1] ||
2833					    !hextolfp(val + 2, pnow))
2834					goto nomatch;
2835				have_now = TRUE;
2836				break;
2837
2838			case 'c':
2839				if (1 != sscanf(tag, "ct.%d", &si) ||
2840				    si != ci ||
2841				    1 != sscanf(val, "%d", &mon->count)
2842				    || mon->count < 1)
2843					goto nomatch;
2844				MGOT(MRU_GOT_COUNT);
2845				break;
2846
2847			case 'm':
2848				if (1 != sscanf(tag, "mv.%d", &si) ||
2849				    si != ci ||
2850				    1 != sscanf(val, "%d", &mv))
2851					goto nomatch;
2852				mon->mode = PKT_MODE(mv);
2853				mon->ver = PKT_VERSION(mv);
2854				MGOT(MRU_GOT_MV);
2855				break;
2856
2857			case 'r':
2858				if (1 != sscanf(tag, "rs.%d", &si) ||
2859				    si != ci ||
2860				    1 != sscanf(val, "0x%hx", &mon->rs))
2861					goto nomatch;
2862				MGOT(MRU_GOT_RS);
2863				break;
2864
2865			default:
2866			nomatch:
2867				/* empty stmt */ ;
2868				/* ignore unknown tags */
2869			}
2870		}
2871		if (have_now)
2872			list_complete = TRUE;
2873		if (list_complete) {
2874			INSIST(0 == ri || have_addr_older);
2875		}
2876		if (mrulist_interrupted) {
2877			printf("mrulist retrieval interrupted by operator.\n"
2878			       "Displaying partial client list.\n");
2879			fflush(stdout);
2880		}
2881		if (list_complete || mrulist_interrupted) {
2882			xprintf(stderr,
2883				"\rRetrieved %u unique MRU entries and %u updates.\n",
2884				mru_count, mru_dupes);
2885			fflush(stderr);
2886			break;
2887		}
2888		if (time(NULL) >= next_report) {
2889			next_report += MRU_REPORT_SECS;
2890			xprintf(stderr, "\r%u (%u updates) ", mru_count,
2891				mru_dupes);
2892			fflush(stderr);
2893		}
2894
2895		/*
2896		 * Snooze for a bit between queries to let ntpd catch
2897		 * up with other duties.
2898		 */
2899#ifdef SYS_WINNT
2900		Sleep(sleep_msecs);
2901#elif !defined(HAVE_NANOSLEEP)
2902		sleep((sleep_msecs / 1000) + 1);
2903#else
2904		{
2905			struct timespec interv = { 0,
2906						   1000 * sleep_msecs };
2907			nanosleep(&interv, NULL);
2908		}
2909#endif
2910		/*
2911		 * If there were no errors, increase the number of rows
2912		 * to a maximum of 3 * MAXFRAGS (the most packets ntpq
2913		 * can handle in one response), on the assumption that
2914		 * no less than 3 rows fit in each packet, capped at
2915		 * our best guess at the server's row limit.
2916		 */
2917		if (!qres) {
2918			if (cap_frags) {
2919				frags = min(MAXFRAGS, frags + 1);
2920			} else {
2921				limit = min3(3 * MAXFRAGS,
2922					     ntpd_row_limit,
2923					     max(limit + 1,
2924					         limit * 33 / 32));
2925			}
2926		}
2927		/*
2928		 * prepare next query with as many address and last-seen
2929		 * timestamps as will fit in a single packet.
2930		 */
2931		req = req_buf;
2932		req_end = req_buf + sizeof(req_buf);
2933#define REQ_ROOM	(req_end - req)
2934		snprintf(req, REQ_ROOM, "nonce=%s, %s=%d%s", nonce,
2935			 (cap_frags)
2936			     ? "frags"
2937			     : "limit",
2938			 (cap_frags)
2939			     ? frags
2940			     : limit,
2941			 parms);
2942		req += strlen(req);
2943		nonce_uses++;
2944		if (nonce_uses >= 4) {
2945			if (!fetch_nonce(nonce, sizeof(nonce)))
2946				goto cleanup_return;
2947			nonce_uses = 0;
2948		}
2949
2950
2951		for (ri = 0, recent = HEAD_DLIST(mru_list, mlink);
2952		     recent != NULL;
2953		     ri++, recent = NEXT_DLIST(mru_list, recent, mlink)) {
2954
2955			snprintf(buf, sizeof(buf),
2956				 ", addr.%d=%s, last.%d=0x%08x.%08x",
2957				 ri, sptoa(&recent->addr), ri,
2958				 recent->last.l_ui, recent->last.l_uf);
2959			chars = strlen(buf);
2960			if ((size_t)REQ_ROOM <= chars)
2961				break;
2962			memcpy(req, buf, chars + 1);
2963			req += chars;
2964		}
2965	}
2966
2967	c_mru_l_rc = TRUE;
2968	goto retain_hash_table;
2969
2970cleanup_return:
2971	free(hash_table);
2972	hash_table = NULL;
2973
2974retain_hash_table:
2975	if (mon != NULL)
2976		free(mon);
2977
2978	return c_mru_l_rc;
2979}
2980
2981
2982/*
2983 * qcmp_mru_addr - sort MRU entries by remote address.
2984 *
2985 * All IPv4 addresses sort before any IPv6, addresses are sorted by
2986 * value within address family.
2987 */
2988static int
2989qcmp_mru_addr(
2990	const void *v1,
2991	const void *v2
2992	)
2993{
2994	const mru * const *	ppm1 = v1;
2995	const mru * const *	ppm2 = v2;
2996	const mru *		pm1;
2997	const mru *		pm2;
2998	u_short			af1;
2999	u_short			af2;
3000	size_t			cmplen;
3001	size_t			addr_off;
3002
3003	pm1 = *ppm1;
3004	pm2 = *ppm2;
3005
3006	af1 = AF(&pm1->addr);
3007	af2 = AF(&pm2->addr);
3008
3009	if (af1 != af2)
3010		return (AF_INET == af1)
3011			   ? -1
3012			   : 1;
3013
3014	cmplen = SIZEOF_INADDR(af1);
3015	addr_off = (AF_INET == af1)
3016		      ? offsetof(struct sockaddr_in, sin_addr)
3017		      : offsetof(struct sockaddr_in6, sin6_addr);
3018
3019	return memcmp((const char *)&pm1->addr + addr_off,
3020		      (const char *)&pm2->addr + addr_off,
3021		      cmplen);
3022}
3023
3024
3025static int
3026qcmp_mru_r_addr(
3027	const void *v1,
3028	const void *v2
3029	)
3030{
3031	return -qcmp_mru_addr(v1, v2);
3032}
3033
3034
3035/*
3036 * qcmp_mru_count - sort MRU entries by times seen (hit count).
3037 */
3038static int
3039qcmp_mru_count(
3040	const void *v1,
3041	const void *v2
3042	)
3043{
3044	const mru * const *	ppm1 = v1;
3045	const mru * const *	ppm2 = v2;
3046	const mru *		pm1;
3047	const mru *		pm2;
3048
3049	pm1 = *ppm1;
3050	pm2 = *ppm2;
3051
3052	return (pm1->count < pm2->count)
3053		   ? -1
3054		   : ((pm1->count == pm2->count)
3055			  ? 0
3056			  : 1);
3057}
3058
3059
3060static int
3061qcmp_mru_r_count(
3062	const void *v1,
3063	const void *v2
3064	)
3065{
3066	return -qcmp_mru_count(v1, v2);
3067}
3068
3069
3070/*
3071 * qcmp_mru_avgint - sort MRU entries by average interval.
3072 */
3073static int
3074qcmp_mru_avgint(
3075	const void *v1,
3076	const void *v2
3077	)
3078{
3079	const mru * const *	ppm1 = v1;
3080	const mru * const *	ppm2 = v2;
3081	const mru *		pm1;
3082	const mru *		pm2;
3083	l_fp			interval;
3084	double			avg1;
3085	double			avg2;
3086
3087	pm1 = *ppm1;
3088	pm2 = *ppm2;
3089
3090	interval = pm1->last;
3091	L_SUB(&interval, &pm1->first);
3092	LFPTOD(&interval, avg1);
3093	avg1 /= pm1->count;
3094
3095	interval = pm2->last;
3096	L_SUB(&interval, &pm2->first);
3097	LFPTOD(&interval, avg2);
3098	avg2 /= pm2->count;
3099
3100	if (avg1 < avg2)
3101		return -1;
3102	else if (avg1 > avg2)
3103		return 1;
3104
3105	/* secondary sort on lstint - rarely tested */
3106	if (L_ISEQU(&pm1->last, &pm2->last))
3107		return 0;
3108	else if (L_ISGEQ(&pm1->last, &pm2->last))
3109		return -1;
3110	else
3111		return 1;
3112}
3113
3114
3115static int
3116qcmp_mru_r_avgint(
3117	const void *v1,
3118	const void *v2
3119	)
3120{
3121	return -qcmp_mru_avgint(v1, v2);
3122}
3123
3124
3125/*
3126 * mrulist - ntpq's mrulist command to fetch an arbitrarily large Most
3127 *	     Recently Used (seen) remote address list from ntpd.
3128 *
3129 * Similar to ntpdc's monlist command, but not limited to a single
3130 * request/response, and thereby not limited to a few hundred remote
3131 * addresses.
3132 *
3133 * See ntpd/ntp_control.c read_mru_list() for comments on the way
3134 * CTL_OP_READ_MRU is designed to be used.
3135 *
3136 * mrulist intentionally differs from monlist in the way the avgint
3137 * column is calculated.  monlist includes the time after the last
3138 * packet from the client until the monlist query time in the average,
3139 * while mrulist excludes it.  That is, monlist's average interval grows
3140 * over time for remote addresses not heard from in some time, while it
3141 * remains unchanged in mrulist.  This also affects the avgint value for
3142 * entries representing a single packet, with identical first and last
3143 * timestamps.  mrulist shows 0 avgint, monlist shows a value identical
3144 * to lstint.
3145 */
3146static void
3147mrulist(
3148	struct parse *	pcmd,
3149	FILE *		fp
3150	)
3151{
3152	const char mincount_eq[] =	"mincount=";
3153	const char resall_eq[] =	"resall=";
3154	const char resany_eq[] =	"resany=";
3155	const char maxlstint_eq[] =	"maxlstint=";
3156	const char laddr_eq[] =		"laddr=";
3157	const char sort_eq[] =		"sort=";
3158	mru_sort_order order;
3159	size_t n;
3160	char parms_buf[128];
3161	char buf[24];
3162	char *parms;
3163	const char *arg;
3164	size_t cb;
3165	mru **sorted;
3166	mru **ppentry;
3167	mru *recent;
3168	l_fp now;
3169	l_fp interval;
3170	double favgint;
3171	double flstint;
3172	int avgint;
3173	int lstint;
3174	size_t i;
3175
3176	mrulist_interrupted = FALSE;
3177	push_ctrl_c_handler(&mrulist_ctrl_c_hook);
3178	xprintf(stderr,
3179		"Ctrl-C will stop MRU retrieval and display partial results.\n");
3180	fflush(stderr);
3181
3182	order = MRUSORT_DEF;
3183	parms_buf[0] = '\0';
3184	parms = parms_buf;
3185	for (i = 0; i < pcmd->nargs; i++) {
3186		arg = pcmd->argval[i].string;
3187		if (arg != NULL) {
3188			cb = strlen(arg) + 1;
3189			if ((!strncmp(resall_eq, arg, sizeof(resall_eq)
3190			    - 1) || !strncmp(resany_eq, arg,
3191			    sizeof(resany_eq) - 1) || !strncmp(
3192			    mincount_eq, arg, sizeof(mincount_eq) - 1)
3193			    || !strncmp(laddr_eq, arg, sizeof(laddr_eq)
3194			    - 1) || !strncmp(maxlstint_eq, arg,
3195			    sizeof(laddr_eq) - 1)) && parms + cb + 2 <=
3196			    parms_buf + sizeof(parms_buf)) {
3197				/* these are passed intact to ntpd */
3198				memcpy(parms, ", ", 2);
3199				parms += 2;
3200				memcpy(parms, arg, cb);
3201				parms += cb - 1;
3202			} else if (!strncmp(sort_eq, arg,
3203					    sizeof(sort_eq) - 1)) {
3204				arg += sizeof(sort_eq) - 1;
3205				for (n = 0;
3206				     n < COUNTOF(mru_sort_keywords);
3207				     n++)
3208					if (!strcmp(mru_sort_keywords[n],
3209						    arg))
3210						break;
3211				if (n < COUNTOF(mru_sort_keywords))
3212					order = n;
3213			} else if (!strcmp("limited", arg) ||
3214				   !strcmp("kod", arg)) {
3215				/* transform to resany=... */
3216				snprintf(buf, sizeof(buf),
3217					 ", resany=0x%x",
3218					 ('k' == arg[0])
3219					     ? RES_KOD
3220					     : RES_LIMITED);
3221				cb = 1 + strlen(buf);
3222				if (parms + cb <
3223					parms_buf + sizeof(parms_buf)) {
3224					memcpy(parms, buf, cb);
3225					parms += cb - 1;
3226				}
3227			} else
3228				xprintf(stderr,
3229					"ignoring unrecognized mrulist parameter: %s\n",
3230					arg);
3231		}
3232	}
3233	parms = parms_buf;
3234
3235	if (!collect_mru_list(parms, &now))
3236		return;
3237
3238	/* display the results */
3239	if (rawmode)
3240		goto cleanup_return;
3241
3242	/* construct an array of entry pointers in default order */
3243	sorted = eallocarray(mru_count, sizeof(*sorted));
3244	ppentry = sorted;
3245	if (MRUSORT_R_DEF != order) {
3246		ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3247			INSIST(ppentry < sorted + mru_count);
3248			*ppentry = recent;
3249			ppentry++;
3250		ITER_DLIST_END()
3251	} else {
3252		REV_ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3253			INSIST(ppentry < sorted + mru_count);
3254			*ppentry = recent;
3255			ppentry++;
3256		REV_ITER_DLIST_END()
3257	}
3258
3259	if (ppentry - sorted != (int)mru_count) {
3260		xprintf(stderr,
3261			"mru_count %u should match MRU list depth %ld.\n",
3262			mru_count, (long)(ppentry - sorted));
3263		free(sorted);
3264		goto cleanup_return;
3265	}
3266
3267	/* re-sort sorted[] if not default or reverse default */
3268	if (MRUSORT_R_DEF < order)
3269		qsort(sorted, mru_count, sizeof(sorted[0]),
3270		      mru_qcmp_table[order]);
3271
3272	mrulist_interrupted = FALSE;
3273	printf(	"lstint avgint rstr r m v  count rport remote address\n"
3274		"==============================================================================\n");
3275		/* '=' x 78 */
3276	for (ppentry = sorted; ppentry < sorted + mru_count; ppentry++) {
3277		recent = *ppentry;
3278		interval = now;
3279		L_SUB(&interval, &recent->last);
3280		LFPTOD(&interval, flstint);
3281		lstint = (int)(flstint + 0.5);
3282		interval = recent->last;
3283		L_SUB(&interval, &recent->first);
3284		LFPTOD(&interval, favgint);
3285		favgint /= recent->count;
3286		avgint = (int)(favgint + 0.5);
3287		xprintf(fp, "%6d %6d %4hx %c %d %d %6d %5u %s\n",
3288			lstint, avgint, recent->rs,
3289			(RES_KOD & recent->rs)
3290			    ? 'K'
3291			    : (RES_LIMITED & recent->rs)
3292				  ? 'L'
3293				  : '.',
3294			(int)recent->mode, (int)recent->ver,
3295			recent->count, SRCPORT(&recent->addr),
3296			nntohost(&recent->addr));
3297		if (showhostnames)
3298			fflush(fp);
3299		if (mrulist_interrupted) {
3300			xputs("\n --interrupted--\n", fp);
3301			fflush(fp);
3302			break;
3303		}
3304	}
3305	fflush(fp);
3306	if (debug) {
3307		xprintf(stderr,
3308			"--- completed, freeing sorted[] pointers\n");
3309		fflush(stderr);
3310	}
3311	free(sorted);
3312
3313cleanup_return:
3314	if (debug) {
3315		xprintf(stderr, "... freeing MRU entries\n");
3316		fflush(stderr);
3317	}
3318	ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3319		free(recent);
3320	ITER_DLIST_END()
3321	if (debug) {
3322		xprintf(stderr, "... freeing hash_table[]\n");
3323		fflush(stderr);
3324	}
3325	free(hash_table);
3326	hash_table = NULL;
3327	INIT_DLIST(mru_list, mlink);
3328
3329	pop_ctrl_c_handler(&mrulist_ctrl_c_hook);
3330}
3331
3332
3333/*
3334 * validate_ifnum - helper for ifstats()
3335 *
3336 * Ensures rows are received in order and complete.
3337 */
3338static void
3339validate_ifnum(
3340	FILE *		fp,
3341	u_int		ifnum,
3342	int *		pfields,
3343	ifstats_row *	prow
3344	)
3345{
3346	if (prow->ifnum == ifnum)
3347		return;
3348	if (prow->ifnum + 1 <= ifnum) {
3349		if (*pfields < IFSTATS_FIELDS)
3350			xprintf(fp, "Warning: incomplete row with %d (of %d) fields\n",
3351				*pfields, IFSTATS_FIELDS);
3352		*pfields = 0;
3353		prow->ifnum = ifnum;
3354		return;
3355	}
3356	xprintf(stderr,
3357		"received if index %u, have %d of %d fields for index %u, aborting.\n",
3358		ifnum, *pfields, IFSTATS_FIELDS, prow->ifnum);
3359	exit(1);
3360}
3361
3362
3363/*
3364 * another_ifstats_field - helper for ifstats()
3365 *
3366 * If all fields for the row have been received, print it.
3367 */
3368static void
3369another_ifstats_field(
3370	int *		pfields,
3371	ifstats_row *	prow,
3372	FILE *		fp
3373	)
3374{
3375	u_int ifnum;
3376
3377	(*pfields)++;
3378	/* we understand 12 tags */
3379	if (IFSTATS_FIELDS > *pfields)
3380		return;
3381	/*
3382	"    interface name                                        send\n"
3383	" #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3384	"==============================================================================\n");
3385	 */
3386	xprintf(fp,
3387		"%3u %-24.24s %c %4x %3u %2u %6u %6u %6u %5u %8d\n"
3388		"    %s\n",
3389		prow->ifnum, prow->name,
3390		(prow->enabled)
3391		    ? '.'
3392		    : 'D',
3393		prow->flags, prow->ttl, prow->mcast_count,
3394		prow->received, prow->sent, prow->send_errors,
3395		prow->peer_count, prow->uptime, sptoa(&prow->addr));
3396	if (!SOCK_UNSPEC(&prow->bcast))
3397		xprintf(fp, "    %s\n", sptoa(&prow->bcast));
3398	ifnum = prow->ifnum;
3399	ZERO(*prow);
3400	prow->ifnum = ifnum;
3401}
3402
3403
3404/*
3405 * ifstats - ntpq -c ifstats modeled on ntpdc -c ifstats.
3406 */
3407static void
3408ifstats(
3409	struct parse *	pcmd,
3410	FILE *		fp
3411	)
3412{
3413	const char	addr_fmt[] =	"addr.%u";
3414	const char	bcast_fmt[] =	"bcast.%u";
3415	const char	en_fmt[] =	"en.%u";	/* enabled */
3416	const char	flags_fmt[] =	"flags.%u";
3417	const char	mc_fmt[] =	"mc.%u";	/* mcast count */
3418	const char	name_fmt[] =	"name.%u";
3419	const char	pc_fmt[] =	"pc.%u";	/* peer count */
3420	const char	rx_fmt[] =	"rx.%u";
3421	const char	tl_fmt[] =	"tl.%u";	/* ttl */
3422	const char	tx_fmt[] =	"tx.%u";
3423	const char	txerr_fmt[] =	"txerr.%u";
3424	const char	up_fmt[] =	"up.%u";	/* uptime */
3425	const char *	datap;
3426	int		qres;
3427	size_t		dsize;
3428	u_short		rstatus;
3429	char *		tag;
3430	char *		val;
3431	int		fields;
3432	u_int		ui;
3433	ifstats_row	row;
3434	int		comprende;
3435	size_t		len;
3436
3437	qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, 0, NULL, &rstatus,
3438		       &dsize, &datap);
3439	if (qres)	/* message already displayed */
3440		return;
3441
3442	xprintf(fp,
3443		"    interface name                                        send\n"
3444		" #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3445		"==============================================================================\n");
3446		/* '=' x 78 */
3447
3448	ZERO(row);
3449	fields = 0;
3450	ui = 0;
3451	while (nextvar(&dsize, &datap, &tag, &val)) {
3452		INSIST(tag && val);
3453		if (debug > 1)
3454		    xprintf(stderr, "nextvar gave: %s = %s\n", tag, val);
3455		comprende = FALSE;
3456		switch(tag[0]) {
3457
3458		case 'a':
3459			if (1 == sscanf(tag, addr_fmt, &ui) &&
3460			    decodenetnum(val, &row.addr))
3461				comprende = TRUE;
3462			break;
3463
3464		case 'b':
3465			if (1 == sscanf(tag, bcast_fmt, &ui) &&
3466			    ('\0' == *val ||
3467			     decodenetnum(val, &row.bcast)))
3468				comprende = TRUE;
3469			break;
3470
3471		case 'e':
3472			if (1 == sscanf(tag, en_fmt, &ui) &&
3473			    1 == sscanf(val, "%d", &row.enabled))
3474				comprende = TRUE;
3475			break;
3476
3477		case 'f':
3478			if (1 == sscanf(tag, flags_fmt, &ui) &&
3479			    1 == sscanf(val, "0x%x", &row.flags))
3480				comprende = TRUE;
3481			break;
3482
3483		case 'm':
3484			if (1 == sscanf(tag, mc_fmt, &ui) &&
3485			    1 == sscanf(val, "%u", &row.mcast_count))
3486				comprende = TRUE;
3487			break;
3488
3489		case 'n':
3490			if (1 == sscanf(tag, name_fmt, &ui)) {
3491				/* strip quotes */
3492				len = strlen(val);
3493				if (len >= 2 &&
3494				    len - 2 < sizeof(row.name)) {
3495					len -= 2;
3496					memcpy(row.name, val + 1, len);
3497					row.name[len] = '\0';
3498					comprende = TRUE;
3499				}
3500			}
3501			break;
3502
3503		case 'p':
3504			if (1 == sscanf(tag, pc_fmt, &ui) &&
3505			    1 == sscanf(val, "%u", &row.peer_count))
3506				comprende = TRUE;
3507			break;
3508
3509		case 'r':
3510			if (1 == sscanf(tag, rx_fmt, &ui) &&
3511			    1 == sscanf(val, "%u", &row.received))
3512				comprende = TRUE;
3513			break;
3514
3515		case 't':
3516			if (1 == sscanf(tag, tl_fmt, &ui) &&
3517			    1 == sscanf(val, "%u", &row.ttl))
3518				comprende = TRUE;
3519			else if (1 == sscanf(tag, tx_fmt, &ui) &&
3520				 1 == sscanf(val, "%u", &row.sent))
3521				comprende = TRUE;
3522			else if (1 == sscanf(tag, txerr_fmt, &ui) &&
3523				 1 == sscanf(val, "%u", &row.send_errors))
3524				comprende = TRUE;
3525			break;
3526
3527		case 'u':
3528			if (1 == sscanf(tag, up_fmt, &ui) &&
3529			    1 == sscanf(val, "%u", &row.uptime))
3530				comprende = TRUE;
3531			break;
3532		}
3533
3534		if (comprende) {
3535			/* error out if rows out of order */
3536			validate_ifnum(fp, ui, &fields, &row);
3537			/* if the row is complete, print it */
3538			another_ifstats_field(&fields, &row, fp);
3539		}
3540	}
3541	if (fields != IFSTATS_FIELDS)
3542		xprintf(fp, "Warning: incomplete row with %d (of %d) fields\n",
3543			fields, IFSTATS_FIELDS);
3544
3545	fflush(fp);
3546}
3547
3548
3549/*
3550 * validate_reslist_idx - helper for reslist()
3551 *
3552 * Ensures rows are received in order and complete.
3553 */
3554static void
3555validate_reslist_idx(
3556	FILE *		fp,
3557	u_int		idx,
3558	int *		pfields,
3559	reslist_row *	prow
3560	)
3561{
3562	if (prow->idx == idx)
3563		return;
3564	if (prow->idx + 1 == idx) {
3565		if (*pfields < RESLIST_FIELDS)
3566			xprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3567				*pfields, RESLIST_FIELDS);
3568		*pfields = 0;
3569		prow->idx = idx;
3570		return;
3571	}
3572	xprintf(stderr,
3573		"received reslist index %u, have %d of %d fields for index %u, aborting.\n",
3574		idx, *pfields, RESLIST_FIELDS, prow->idx);
3575	exit(1);
3576}
3577
3578
3579/*
3580 * another_reslist_field - helper for reslist()
3581 *
3582 * If all fields for the row have been received, print it.
3583 */
3584static void
3585another_reslist_field(
3586	int *		pfields,
3587	reslist_row *	prow,
3588	FILE *		fp
3589	)
3590{
3591	char	addrmaskstr[128];
3592	int	prefix;	/* subnet mask as prefix bits count */
3593	u_int	idx;
3594
3595	(*pfields)++;
3596	/* we understand 4 tags */
3597	if (RESLIST_FIELDS > *pfields)
3598		return;
3599
3600	prefix = sockaddr_masktoprefixlen(&prow->mask);
3601	if (prefix >= 0)
3602		snprintf(addrmaskstr, sizeof(addrmaskstr), "%s/%d",
3603			 stoa(&prow->addr), prefix);
3604	else
3605		snprintf(addrmaskstr, sizeof(addrmaskstr), "%s %s",
3606			 stoa(&prow->addr), stoa(&prow->mask));
3607
3608	/*
3609	"   hits    addr/prefix or addr mask\n"
3610	"           restrictions\n"
3611	"==============================================================================\n");
3612	 */
3613	xprintf(fp,
3614		"%10lu %s\n"
3615		"           %s\n",
3616		prow->hits, addrmaskstr, prow->flagstr);
3617	idx = prow->idx;
3618	ZERO(*prow);
3619	prow->idx = idx;
3620}
3621
3622
3623/*
3624 * reslist - ntpq -c reslist modeled on ntpdc -c reslist.
3625 */
3626static void
3627reslist(
3628	struct parse *	pcmd,
3629	FILE *		fp
3630	)
3631{
3632	const char addr_fmtu[] =	"addr.%u";
3633	const char mask_fmtu[] =	"mask.%u";
3634	const char hits_fmt[] =		"hits.%u";
3635	const char flags_fmt[] =	"flags.%u";
3636	const char qdata[] =		"addr_restrictions";
3637	const int qdata_chars =		COUNTOF(qdata) - 1;
3638	const char *	datap;
3639	int		qres;
3640	size_t		dsize;
3641	u_short		rstatus;
3642	char *		tag;
3643	char *		val;
3644	int		fields;
3645	u_int		ui;
3646	reslist_row	row;
3647	int		comprende;
3648	size_t		len;
3649
3650	qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, qdata_chars,
3651		       qdata, &rstatus, &dsize, &datap);
3652	if (qres)	/* message already displayed */
3653		return;
3654
3655	xprintf(fp,
3656		"   hits    addr/prefix or addr mask\n"
3657		"           restrictions\n"
3658		"==============================================================================\n");
3659		/* '=' x 78 */
3660
3661	ZERO(row);
3662	fields = 0;
3663	ui = 0;
3664	while (nextvar(&dsize, &datap, &tag, &val)) {
3665		INSIST(tag && val);
3666		if (debug > 1)
3667			xprintf(stderr, "nextvar gave: %s = %s\n", tag, val);
3668		comprende = FALSE;
3669		switch(tag[0]) {
3670
3671		case 'a':
3672			if (1 == sscanf(tag, addr_fmtu, &ui) &&
3673			    decodenetnum(val, &row.addr))
3674				comprende = TRUE;
3675			break;
3676
3677		case 'f':
3678			if (1 == sscanf(tag, flags_fmt, &ui)) {
3679				if (NULL == val) {
3680					row.flagstr[0] = '\0';
3681					comprende = TRUE;
3682				} else if ((len = strlen(val)) < sizeof(row.flagstr)) {
3683					memcpy(row.flagstr, val, len);
3684					row.flagstr[len] = '\0';
3685					comprende = TRUE;
3686				} else {
3687					 /* no flags, and still !comprende */
3688					row.flagstr[0] = '\0';
3689				}
3690			}
3691			break;
3692
3693		case 'h':
3694			if (1 == sscanf(tag, hits_fmt, &ui) &&
3695			    1 == sscanf(val, "%lu", &row.hits))
3696				comprende = TRUE;
3697			break;
3698
3699		case 'm':
3700			if (1 == sscanf(tag, mask_fmtu, &ui) &&
3701			    decodenetnum(val, &row.mask))
3702				comprende = TRUE;
3703			break;
3704		}
3705
3706		if (comprende) {
3707			/* error out if rows out of order */
3708			validate_reslist_idx(fp, ui, &fields, &row);
3709			/* if the row is complete, print it */
3710			another_reslist_field(&fields, &row, fp);
3711		}
3712	}
3713	if (fields != RESLIST_FIELDS)
3714		xprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3715			fields, RESLIST_FIELDS);
3716
3717	fflush(fp);
3718}
3719
3720
3721/*
3722 * collect_display_vdc
3723 */
3724static void
3725collect_display_vdc(
3726	associd_t	as,
3727	vdc *		table,
3728	int		decodestatus,
3729	FILE *		fp
3730	)
3731{
3732	static const char * const suf[2] = { "adr", "port" };
3733	static const char * const leapbits[4] = { "00", "01",
3734						  "10", "11" };
3735	struct varlist vl[MAXLIST];
3736	char tagbuf[32];
3737	vdc *pvdc;
3738	u_short rstatus;
3739	size_t rsize;
3740	const char *rdata;
3741	int qres;
3742	char *tag;
3743	char *val;
3744	u_int n;
3745	size_t len;
3746	int match;
3747	u_long ul;
3748	int vtype;
3749	sockaddr_u sau;
3750
3751	ZERO(vl);
3752	for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3753		ZERO(pvdc->v);
3754		if (NTP_ADD != pvdc->type) {
3755			doaddvlist(vl, pvdc->tag);
3756		} else {
3757			for (n = 0; n < COUNTOF(suf); n++) {
3758				snprintf(tagbuf, sizeof(tagbuf), "%s%s",
3759					 pvdc->tag, suf[n]);
3760				doaddvlist(vl, tagbuf);
3761			}
3762		}
3763	}
3764	qres = doquerylist(vl, CTL_OP_READVAR, as, 0, &rstatus, &rsize,
3765			   &rdata);
3766	doclearvlist(vl);
3767	if (qres)
3768		return;		/* error msg already displayed */
3769
3770	/*
3771	 * iterate over the response variables filling vdc_table with
3772	 * the retrieved values.
3773	 */
3774	while (nextvar(&rsize, &rdata, &tag, &val)) {
3775		INSIST(tag && val);
3776		n = 0;
3777		for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3778			len = strlen(pvdc->tag);
3779			if (strncmp(tag, pvdc->tag, len))
3780				continue;
3781			if (NTP_ADD != pvdc->type) {
3782				if ('\0' != tag[len])
3783					continue;
3784				break;
3785			}
3786			match = FALSE;
3787			for (n = 0; n < COUNTOF(suf); n++) {
3788				if (strcmp(tag + len, suf[n]))
3789					continue;
3790				match = TRUE;
3791				break;
3792			}
3793			if (match)
3794				break;
3795		}
3796		if (NULL == pvdc->tag)
3797			continue;
3798		switch (pvdc->type) {
3799
3800		case NTP_STR:
3801			/* strip surrounding double quotes */
3802			if ('"' == val[0]) {
3803				len = strlen(val);
3804				if (len > 0 && '"' == val[len - 1]) {
3805					val[len - 1] = '\0';
3806					val++;
3807				}
3808			}
3809			/* fallthru */
3810		case NTP_REFID:	/* fallthru */
3811		case NTP_MODE:	/* fallthru */
3812		case NTP_2BIT:
3813			pvdc->v.str = estrdup(val);
3814			break;
3815
3816		case NTP_LFP:
3817			decodets(val, &pvdc->v.lfp);
3818			break;
3819
3820		case NTP_ADP:
3821			if (!decodenetnum(val, &pvdc->v.sau))
3822				xprintf(stderr, "malformed %s=%s\n",
3823					pvdc->tag, val);
3824			break;
3825
3826		case NTP_ADD:
3827			if (0 == n) {	/* adr */
3828				if (!decodenetnum(val, &pvdc->v.sau))
3829					xprintf(stderr,
3830						"malformed %s=%s\n",
3831						pvdc->tag, val);
3832			} else {	/* port */
3833				if (atouint(val, &ul))
3834					SET_PORT(&pvdc->v.sau,
3835						 (u_short)ul);
3836			}
3837			break;
3838		}
3839	}
3840
3841	/* and display */
3842	if (decodestatus) {
3843		vtype = (0 == as)
3844			    ? TYPE_SYS
3845			    : TYPE_PEER;
3846		xprintf(fp, "associd=%u status=%04x %s,\n", as, rstatus,
3847			statustoa(vtype, rstatus));
3848	}
3849
3850	for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3851		switch (pvdc->type) {
3852
3853		case NTP_STR:
3854			if (pvdc->v.str != NULL) {
3855				xprintf(fp, "%s  %s\n", pvdc->display,
3856					pvdc->v.str);
3857				free(pvdc->v.str);
3858				pvdc->v.str = NULL;
3859			}
3860			break;
3861
3862		case NTP_ADD:	/* fallthru */
3863		case NTP_ADP:
3864			xprintf(fp, "%s  %s\n", pvdc->display,
3865				nntohostp(&pvdc->v.sau));
3866			break;
3867
3868		case NTP_LFP:
3869			xprintf(fp, "%s  %s\n", pvdc->display,
3870				prettydate(&pvdc->v.lfp));
3871			break;
3872
3873		case NTP_MODE:
3874			atouint(pvdc->v.str, &ul);
3875			xprintf(fp, "%s  %s\n", pvdc->display,
3876				modetoa((int)ul));
3877			free(pvdc->v.str);
3878			pvdc->v.str = NULL;
3879			break;
3880
3881		case NTP_2BIT:
3882			atouint(pvdc->v.str, &ul);
3883			xprintf(fp, "%s  %s\n", pvdc->display,
3884				leapbits[ul & 0x3]);
3885			free(pvdc->v.str);
3886			pvdc->v.str = NULL;
3887			break;
3888
3889		case NTP_REFID:
3890			if (!decodenetnum(pvdc->v.str, &sau)) {
3891				fprintf(fp, "%s  %s\n", pvdc->display,    /* Text fmt */
3892					pvdc->v.str);
3893			} else if (drefid == REFID_IPV4) {
3894				fprintf(fp, "%s  %s\n", pvdc->display,    /* IPv4 fmt */
3895					stoa(&sau));
3896			} else {
3897				fprintf (fp, "%s  0x%08x\n", pvdc->display,	   /* Hex / hash */
3898					 ntohl(addr2refid(&sau)));
3899			}
3900			free(pvdc->v.str);
3901			pvdc->v.str = NULL;
3902			break;
3903
3904		default:
3905			xprintf(stderr, "unexpected vdc type %d for %s\n",
3906				pvdc->type, pvdc->tag);
3907			break;
3908		}
3909	}
3910}
3911
3912
3913/*
3914 * sysstats - implements ntpq -c sysstats modeled on ntpdc -c sysstats
3915 */
3916static void
3917sysstats(
3918	struct parse *pcmd,
3919	FILE *fp
3920	)
3921{
3922    static vdc sysstats_vdc[] = {
3923	VDC_INIT("ss_uptime",		"uptime:               ", NTP_STR),
3924	VDC_INIT("ss_reset",		"sysstats reset:       ", NTP_STR),
3925	VDC_INIT("ss_received",		"packets received:     ", NTP_STR),
3926	VDC_INIT("ss_thisver",		"current version:      ", NTP_STR),
3927	VDC_INIT("ss_oldver",		"older version:        ", NTP_STR),
3928	VDC_INIT("ss_badformat",	"bad length or format: ", NTP_STR),
3929	VDC_INIT("ss_badauth",		"authentication failed:", NTP_STR),
3930	VDC_INIT("ss_declined",		"declined:             ", NTP_STR),
3931	VDC_INIT("ss_restricted",	"restricted:           ", NTP_STR),
3932	VDC_INIT("ss_limited",		"rate limited:         ", NTP_STR),
3933	VDC_INIT("ss_kodsent",		"KoD responses:        ", NTP_STR),
3934	VDC_INIT("ss_processed",	"processed for time:   ", NTP_STR),
3935#if 0
3936	VDC_INIT("ss_lamport",		"Lamport violations:    ", NTP_STR),
3937	VDC_INIT("ss_tsrounding",	"bad timestamp rounding:", NTP_STR),
3938#endif
3939	VDC_INIT(NULL,			NULL,			  0)
3940    };
3941
3942	collect_display_vdc(0, sysstats_vdc, FALSE, fp);
3943}
3944
3945
3946/*
3947 * sysinfo - modeled on ntpdc's sysinfo
3948 */
3949static void
3950sysinfo(
3951	struct parse *pcmd,
3952	FILE *fp
3953	)
3954{
3955    static vdc sysinfo_vdc[] = {
3956	VDC_INIT("peeradr",		"system peer:      ", NTP_ADP),
3957	VDC_INIT("peermode",		"system peer mode: ", NTP_MODE),
3958	VDC_INIT("leap",		"leap indicator:   ", NTP_2BIT),
3959	VDC_INIT("stratum",		"stratum:          ", NTP_STR),
3960	VDC_INIT("precision",		"log2 precision:   ", NTP_STR),
3961	VDC_INIT("rootdelay",		"root delay:       ", NTP_STR),
3962	VDC_INIT("rootdisp",		"root dispersion:  ", NTP_STR),
3963	VDC_INIT("refid",		"reference ID:     ", NTP_REFID),
3964	VDC_INIT("reftime",		"reference time:   ", NTP_LFP),
3965	VDC_INIT("sys_jitter",		"system jitter:    ", NTP_STR),
3966	VDC_INIT("clk_jitter",		"clock jitter:     ", NTP_STR),
3967	VDC_INIT("clk_wander",		"clock wander:     ", NTP_STR),
3968	VDC_INIT("bcastdelay",		"broadcast delay:  ", NTP_STR),
3969	VDC_INIT("authdelay",		"symm. auth. delay:", NTP_STR),
3970	VDC_INIT(NULL,			NULL,		      0)
3971    };
3972
3973	collect_display_vdc(0, sysinfo_vdc, TRUE, fp);
3974}
3975
3976
3977/*
3978 * kerninfo - modeled on ntpdc's kerninfo
3979 */
3980static void
3981kerninfo(
3982	struct parse *pcmd,
3983	FILE *fp
3984	)
3985{
3986    static vdc kerninfo_vdc[] = {
3987	VDC_INIT("koffset",		"pll offset:          ", NTP_STR),
3988	VDC_INIT("kfreq",		"pll frequency:       ", NTP_STR),
3989	VDC_INIT("kmaxerr",		"maximum error:       ", NTP_STR),
3990	VDC_INIT("kesterr",		"estimated error:     ", NTP_STR),
3991	VDC_INIT("kstflags",		"kernel status:       ", NTP_STR),
3992	VDC_INIT("ktimeconst",		"pll time constant:   ", NTP_STR),
3993	VDC_INIT("kprecis",		"precision:           ", NTP_STR),
3994	VDC_INIT("kfreqtol",		"frequency tolerance: ", NTP_STR),
3995	VDC_INIT("kppsfreq",		"pps frequency:       ", NTP_STR),
3996	VDC_INIT("kppsstab",		"pps stability:       ", NTP_STR),
3997	VDC_INIT("kppsjitter",		"pps jitter:          ", NTP_STR),
3998	VDC_INIT("kppscalibdur",	"calibration interval ", NTP_STR),
3999	VDC_INIT("kppscalibs",		"calibration cycles:  ", NTP_STR),
4000	VDC_INIT("kppsjitexc",		"jitter exceeded:     ", NTP_STR),
4001	VDC_INIT("kppsstbexc",		"stability exceeded:  ", NTP_STR),
4002	VDC_INIT("kppscaliberrs",	"calibration errors:  ", NTP_STR),
4003	VDC_INIT(NULL,			NULL,			 0)
4004    };
4005
4006	collect_display_vdc(0, kerninfo_vdc, TRUE, fp);
4007}
4008
4009
4010/*
4011 * monstats - implements ntpq -c monstats
4012 */
4013static void
4014monstats(
4015	struct parse *pcmd,
4016	FILE *fp
4017	)
4018{
4019    static vdc monstats_vdc[] = {
4020	VDC_INIT("mru_enabled",		"enabled:            ", NTP_STR),
4021	VDC_INIT("mru_depth",		"addresses:          ", NTP_STR),
4022	VDC_INIT("mru_deepest",		"peak addresses:     ", NTP_STR),
4023	VDC_INIT("mru_maxdepth",	"maximum addresses:  ", NTP_STR),
4024	VDC_INIT("mru_mindepth",	"reclaim above count:", NTP_STR),
4025	VDC_INIT("mru_maxage",		"reclaim older than: ", NTP_STR),
4026	VDC_INIT("mru_mem",		"kilobytes:          ", NTP_STR),
4027	VDC_INIT("mru_maxmem",		"maximum kilobytes:  ", NTP_STR),
4028	VDC_INIT(NULL,			NULL,			0)
4029    };
4030
4031	collect_display_vdc(0, monstats_vdc, FALSE, fp);
4032}
4033
4034
4035/*
4036 * iostats - ntpq -c iostats - network input and output counters
4037 */
4038static void
4039iostats(
4040	struct parse *pcmd,
4041	FILE *fp
4042	)
4043{
4044    static vdc iostats_vdc[] = {
4045	VDC_INIT("iostats_reset",	"time since reset:     ", NTP_STR),
4046	VDC_INIT("total_rbuf",		"receive buffers:      ", NTP_STR),
4047	VDC_INIT("free_rbuf",		"free receive buffers: ", NTP_STR),
4048	VDC_INIT("used_rbuf",		"used receive buffers: ", NTP_STR),
4049	VDC_INIT("rbuf_lowater",	"low water refills:    ", NTP_STR),
4050	VDC_INIT("io_dropped",		"dropped packets:      ", NTP_STR),
4051	VDC_INIT("io_ignored",		"ignored packets:      ", NTP_STR),
4052	VDC_INIT("io_received",		"received packets:     ", NTP_STR),
4053	VDC_INIT("io_sent",		"packets sent:         ", NTP_STR),
4054	VDC_INIT("io_sendfailed",	"packet send failures: ", NTP_STR),
4055	VDC_INIT("io_wakeups",		"input wakeups:        ", NTP_STR),
4056	VDC_INIT("io_goodwakeups",	"useful input wakeups: ", NTP_STR),
4057	VDC_INIT(NULL,			NULL,			  0)
4058    };
4059
4060	collect_display_vdc(0, iostats_vdc, FALSE, fp);
4061}
4062
4063
4064/*
4065 * timerstats - ntpq -c timerstats - interval timer counters
4066 */
4067static void
4068timerstats(
4069	struct parse *pcmd,
4070	FILE *fp
4071	)
4072{
4073    static vdc timerstats_vdc[] = {
4074	VDC_INIT("timerstats_reset",	"time since reset:  ", NTP_STR),
4075	VDC_INIT("timer_overruns",	"timer overruns:    ", NTP_STR),
4076	VDC_INIT("timer_xmts",		"calls to transmit: ", NTP_STR),
4077	VDC_INIT(NULL,			NULL,		       0)
4078    };
4079
4080	collect_display_vdc(0, timerstats_vdc, FALSE, fp);
4081}
4082
4083
4084/*
4085 * authinfo - implements ntpq -c authinfo
4086 */
4087static void
4088authinfo(
4089	struct parse *pcmd,
4090	FILE *fp
4091	)
4092{
4093    static vdc authinfo_vdc[] = {
4094	VDC_INIT("authreset",		"time since reset:", NTP_STR),
4095	VDC_INIT("authkeys",		"stored keys:     ", NTP_STR),
4096	VDC_INIT("authfreek",		"free keys:       ", NTP_STR),
4097	VDC_INIT("authklookups",	"key lookups:     ", NTP_STR),
4098	VDC_INIT("authknotfound",	"keys not found:  ", NTP_STR),
4099	VDC_INIT("authkuncached",	"uncached keys:   ", NTP_STR),
4100	VDC_INIT("authkexpired",	"expired keys:    ", NTP_STR),
4101	VDC_INIT("authencrypts",	"encryptions:     ", NTP_STR),
4102	VDC_INIT("authdecrypts",	"decryptions:     ", NTP_STR),
4103	VDC_INIT(NULL,			NULL,		     0)
4104    };
4105
4106	collect_display_vdc(0, authinfo_vdc, FALSE, fp);
4107}
4108
4109
4110/*
4111 * pstats - show statistics for a peer
4112 */
4113static void
4114pstats(
4115	struct parse *pcmd,
4116	FILE *fp
4117	)
4118{
4119    static vdc pstats_vdc[] = {
4120	VDC_INIT("src",		"remote host:         ", NTP_ADD),
4121	VDC_INIT("dst",		"local address:       ", NTP_ADD),
4122	VDC_INIT("timerec",	"time last received:  ", NTP_STR),
4123	VDC_INIT("timer",	"time until next send:", NTP_STR),
4124	VDC_INIT("timereach",	"reachability change: ", NTP_STR),
4125	VDC_INIT("sent",	"packets sent:        ", NTP_STR),
4126	VDC_INIT("received",	"packets received:    ", NTP_STR),
4127	VDC_INIT("badauth",	"bad authentication:  ", NTP_STR),
4128	VDC_INIT("bogusorg",	"bogus origin:        ", NTP_STR),
4129	VDC_INIT("oldpkt",	"duplicate:           ", NTP_STR),
4130	VDC_INIT("seldisp",	"bad dispersion:      ", NTP_STR),
4131	VDC_INIT("selbroken",	"bad reference time:  ", NTP_STR),
4132	VDC_INIT("candidate",	"candidate order:     ", NTP_STR),
4133	VDC_INIT(NULL,		NULL,			 0)
4134    };
4135	associd_t associd;
4136
4137	associd = checkassocid(pcmd->argval[0].uval);
4138	if (0 == associd)
4139		return;
4140
4141	collect_display_vdc(associd, pstats_vdc, TRUE, fp);
4142}
4143