[mirror_iproute2.git] / misc / lnstat.c

/* lnstat - Unified linux network statistics
 *
 * Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>
 *
 * Development of this code was funded by Astaro AG, http://www.astaro.com/
 *
 * Based on original concept and ideas from predecessor rtstat.c:
 *
 * Copyright 2001 by Robert Olsson <robert.olsson@its.uu.se>
 *                                 Uppsala University, Sweden
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 */

/* Maximum number of fields that can be displayed */
#define MAX_FIELDS		128

/* Maximum number of header lines */
#define HDR_LINES		10

/* default field width if none specified */
#define FIELD_WIDTH_DEFAULT	8
#define FIELD_WIDTH_MAX		20

#define DEFAULT_INTERVAL	2

#define HDR_LINE_LENGTH		(MAX_FIELDS*FIELD_WIDTH_MAX)

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>

#include <json_writer.h>
#include "lnstat.h"

static struct option opts[] = {
	{ "version", 0, NULL, 'V' },
	{ "count", 1, NULL, 'c' },
	{ "dump", 0, NULL, 'd' },
	{ "json", 0, NULL, 'j' },
	{ "file", 1, NULL, 'f' },
	{ "help", 0, NULL, 'h' },
	{ "interval", 1, NULL, 'i' },
	{ "keys", 1, NULL, 'k' },
	{ "subject", 1, NULL, 's' },
	{ "width", 1, NULL, 'w' },
	{ "oneline", 0, NULL, 0 },
};

static int usage(char *name, int exit_code)
{
	fprintf(stderr,
		"%s Version %s\n"
		"Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>\n"
		"This program is free software licensed under GNU GPLv2\nwith ABSOLUTELY NO WARRANTY.\n"
		"\n"
		"Parameters:\n"
		"	-V --version		Print Version of Program\n"
		"	-c --count <count>	"
		"Print <count> number of intervals\n"
		"	-d --dump		"
		"Dump list of available files/keys\n"
		"	-j --json		"
		"Display in JSON format\n"
		"	-f --file <file>	Statistics file to use\n"
		"	-h --help		This help message\n"
		"	-i --interval <intv>	"
		"Set interval to 'intv' seconds\n"
		"	-k --keys k,k,k,...	Display only keys specified\n"
		"	-s --subject [0-2]	Control header printing:\n"
		"				0 = never\n"
		"				1 = once\n"
		"				2 = every 20 lines (default))\n"
		"	-w --width n,n,n,...	Width for each field\n"
		"\n",
		name, LNSTAT_VERSION);

	exit(exit_code);
}

struct field_param {
	const char *name;
	struct lnstat_field *lf;
	struct {
		unsigned int width;
	} print;
};

struct field_params {
	unsigned int num;
	struct field_param params[MAX_FIELDS];
};

static void print_line(FILE *of, const struct lnstat_file *lnstat_files,
		       const struct field_params *fp)
{
	int i;

	for (i = 0; i < fp->num; i++) {
		const struct lnstat_field *lf = fp->params[i].lf;

		fprintf(of, "%*lu|", fp->params[i].print.width, lf->result);
	}
	fputc('\n', of);
}

static void print_json(FILE *of, const struct lnstat_file *lnstat_files,
		       const struct field_params *fp)
{
	json_writer_t *jw = jsonw_new(of);
	int i;

	jsonw_start_object(jw);
	for (i = 0; i < fp->num; i++) {
		const struct lnstat_field *lf = fp->params[i].lf;

		jsonw_uint_field(jw, lf->name, lf->result);
	}
	jsonw_end_object(jw);
	jsonw_destroy(&jw);
}

/* find lnstat_field according to user specification */
static int map_field_params(struct lnstat_file *lnstat_files,
			    struct field_params *fps, int interval)
{
	int i, j = 0;
	struct lnstat_file *lf;

	/* no field specification on commandline, need to build default */
	if (!fps->num) {
		for (lf = lnstat_files; lf; lf = lf->next) {
			for (i = 0; i < lf->num_fields; i++) {
				fps->params[j].lf = &lf->fields[i];
				fps->params[j].lf->file->interval.tv_sec =
								interval;
				if (!fps->params[j].print.width)
					fps->params[j].print.width =
							FIELD_WIDTH_DEFAULT;

				if (++j >= MAX_FIELDS - 1) {
					fprintf(stderr,
						"WARN: MAX_FIELDS (%d) reached, truncating number of keys\n",
						MAX_FIELDS);
					goto full;
				}
			}
		}
full:
		fps->num = j;
		return 1;
	}

	for (i = 0; i < fps->num; i++) {
		fps->params[i].lf = lnstat_find_field(lnstat_files,
						      fps->params[i].name);
		if (!fps->params[i].lf) {
			fprintf(stderr, "Field `%s' unknown\n",
				fps->params[i].name);
			return 0;
		}
		fps->params[i].lf->file->interval.tv_sec = interval;
		if (!fps->params[i].print.width)
			fps->params[i].print.width = FIELD_WIDTH_DEFAULT;
	}
	return 1;
}

struct table_hdr {
	int num_lines;
	char *hdr[HDR_LINES];
};

static struct table_hdr *build_hdr_string(struct lnstat_file *lnstat_files,
					  struct field_params *fps,
					  int linewidth)
{
	int h, i;
	static struct table_hdr th;
	int ofs = 0;

	for (i = 0; i < HDR_LINES; i++)
		th.hdr[i] = calloc(1, HDR_LINE_LENGTH);

	for (i = 0; i < fps->num; i++) {
		char *cname, *fname = fps->params[i].lf->name;
		unsigned int width = fps->params[i].print.width;

		snprintf(th.hdr[0]+ofs, width+2, "%*.*s|", width, width,
			 fps->params[i].lf->file->basename);

		cname = fname;
		for (h = 1; h < HDR_LINES; h++) {
			if (cname - fname >= strlen(fname))
				snprintf(th.hdr[h]+ofs, width+2,
					 "%*.*s|", width, width, "");
			else {
				th.num_lines = h+1;
				snprintf(th.hdr[h]+ofs, width+2,
					 "%*.*s|", width, width, cname);
			}
			cname += width;
		}
		ofs += width+1;
	}
	/* fill in spaces */
	for (h = 1; h <= th.num_lines; h++) {
		for (i = 0; i < ofs; i++) {
			if (th.hdr[h][i] == '\0')
				th.hdr[h][i] = ' ';
		}
	}

	return &th;
}

static int print_hdr(FILE *of, struct table_hdr *th)
{
	int i;

	for (i = 0; i < th->num_lines; i++) {
		fputs(th->hdr[i], of);
		fputc('\n', of);
	}
	return 0;
}


int main(int argc, char **argv)
{
	struct lnstat_file *lnstat_files;
	const char *basename;
	int i, c;
	int interval = DEFAULT_INTERVAL;
	int hdr = 2;
	enum {
		MODE_DUMP,
		MODE_JSON,
		MODE_NORMAL,
	} mode = MODE_NORMAL;
	unsigned long count = 0;
	struct table_hdr *header;
	static struct field_params fp;
	int num_req_files = 0;
	char *req_files[LNSTAT_MAX_FILES];

	/* backwards compatibility mode for old tools */
	basename = strrchr(argv[0], '/');
	if (basename)
		basename += 1;	  /* name after slash */
	else
		basename = argv[0]; /* no slash */

	if (!strcmp(basename, "rtstat")) {
		/* rtstat compatibility mode */
		req_files[0] = "rt_cache";
		num_req_files = 1;
	} else if (!strcmp(basename, "ctstat")) {
		/* ctstat compatibility mode */
		req_files[0] = "ip_conntrack";
		num_req_files = 1;
	}

	while ((c = getopt_long(argc, argv, "Vc:djpf:h?i:k:s:w:",
				opts, NULL)) != -1) {
		int len = 0;
		char *tmp, *tok;

		switch (c) {
		case 'c':
			count = strtoul(optarg, NULL, 0);
			break;
		case 'd':
			mode = MODE_DUMP;
			break;
		case 'j':
			mode = MODE_JSON;
			break;
		case 'f':
			req_files[num_req_files++] = strdup(optarg);
			break;
		case '?':
		case 'h':
			usage(argv[0], 0);
			break;
		case 'i':
			sscanf(optarg, "%u", &interval);
			break;
		case 'k':
			tmp = strdup(optarg);
			if (!tmp)
				break;
			for (tok = strtok(tmp, ",");
			     tok;
			     tok = strtok(NULL, ",")) {
				if (fp.num >= MAX_FIELDS) {
					fprintf(stderr,
						"WARN: too many keys requested: (%d max)\n",
						MAX_FIELDS);
					break;
				}
				fp.params[fp.num++].name = tok;
			}
			break;
		case 's':
			sscanf(optarg, "%u", &hdr);
			break;
		case 'w':
			tmp = strdup(optarg);
			if (!tmp)
				break;
			i = 0;
			for (tok = strtok(tmp, ",");
			     tok;
			     tok = strtok(NULL, ",")) {
				len  = strtoul(tok, NULL, 0);
				if (len > FIELD_WIDTH_MAX)
					len = FIELD_WIDTH_MAX;
				fp.params[i].print.width = len;
				i++;
			}
			if (i == 1) {
				for (i = 0; i < MAX_FIELDS; i++)
					fp.params[i].print.width = len;
			}
			break;
		default:
			usage(argv[0], 1);
			break;
		}
	}

	lnstat_files = lnstat_scan_dir(PROC_NET_STAT, num_req_files,
				       (const char **) req_files);

	switch (mode) {
	case MODE_DUMP:
		lnstat_dump(stdout, lnstat_files);
		break;

	case MODE_NORMAL:
	case MODE_JSON:
		if (!map_field_params(lnstat_files, &fp, interval))
			exit(1);

		header = build_hdr_string(lnstat_files, &fp, 80);
		if (!header)
			exit(1);

		if (interval < 1)
			interval = 1;

		for (i = 0; i < count || !count; i++) {
			lnstat_update(lnstat_files);
			if (mode == MODE_JSON)
				print_json(stdout, lnstat_files, &fp);
			else {
				if  ((hdr > 1 && !(i % 20)) ||
				     (hdr == 1 && i == 0))
					print_hdr(stdout, header);
				print_line(stdout, lnstat_files, &fp);
			}
			fflush(stdout);
			if (i < count - 1 || !count)
				sleep(interval);
		}
		break;
	}

	return 1;
}
Commit	Line	Data
0bb187ca SH	1	/* lnstat - Unified linux network statistics
	2	*
	3	* Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>
	4	*
	5	* Development of this code was funded by Astaro AG, http://www.astaro.com/
	6	*
	7	* Based on original concept and ideas from predecessor rtstat.c:
	8	*
	9	* Copyright 2001 by Robert Olsson <robert.olsson@its.uu.se>
	10	* Uppsala University, Sweden
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	*/
	18
	19	/* Maximum number of fields that can be displayed */
f493dc30	20	#define MAX_FIELDS 128
0bb187ca SH	21
0bb187ca SH	22	/* Maximum number of header lines */
3d0b7439	23	#define HDR_LINES 10
0bb187ca SH	24
	25	/* default field width if none specified */
	26	#define FIELD_WIDTH_DEFAULT 8
	27	#define FIELD_WIDTH_MAX 20
	28
	29	#define DEFAULT_INTERVAL 2
	30
	31	#define HDR_LINE_LENGTH (MAX_FIELDS*FIELD_WIDTH_MAX)
	32
	33	#include <unistd.h>
	34	#include <stdio.h>
	35	#include <stdlib.h>
	36	#include <string.h>
	37	#include <getopt.h>
	38
fcc16c22	39	#include <json_writer.h>
0bb187ca SH	40	#include "lnstat.h"
	41
	42	static struct option opts[] = {
	43	{ "version", 0, NULL, 'V' },
	44	{ "count", 1, NULL, 'c' },
a4f9e8df SH	45	{ "dump", 0, NULL, 'd' },
a4f9e8df SH	46	{ "json", 0, NULL, 'j' },
0bb187ca SH	47	{ "file", 1, NULL, 'f' },
	48	{ "help", 0, NULL, 'h' },
	49	{ "interval", 1, NULL, 'i' },
7e8bd80e	50	{ "keys", 1, NULL, 'k' },
0bb187ca SH	51	{ "subject", 1, NULL, 's' },
0bb187ca SH	52	{ "width", 1, NULL, 'w' },
fcc16c22	53	{ "oneline", 0, NULL, 0 },
0bb187ca SH	54	};
	55
	56	static int usage(char *name, int exit_code)
	57	{
8589eb4e MC	58	fprintf(stderr,
	59	"%s Version %s\n"
	60	"Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>\n"
	61	"This program is free software licensed under GNU GPLv2\nwith ABSOLUTELY NO WARRANTY.\n"
	62	"\n"
	63	"Parameters:\n"
	64	" -V --version Print Version of Program\n"
	65	" -c --count <count> "
	66	"Print <count> number of intervals\n"
	67	" -d --dump "
	68	"Dump list of available files/keys\n"
	69	" -j --json "
	70	"Display in JSON format\n"
	71	" -f --file <file> Statistics file to use\n"
	72	" -h --help This help message\n"
	73	" -i --interval <intv> "
	74	"Set interval to 'intv' seconds\n"
	75	" -k --keys k,k,k,... Display only keys specified\n"
	76	" -s --subject [0-2] Control header printing:\n"
	77	" 0 = never\n"
	78	" 1 = once\n"
	79	" 2 = every 20 lines (default))\n"
	80	" -w --width n,n,n,... Width for each field\n"
	81	"\n",
	82	name, LNSTAT_VERSION);
0bb187ca SH	83
	84	exit(exit_code);
	85	}
	86
	87	struct field_param {
	88	const char *name;
	89	struct lnstat_field *lf;
	90	struct {
	91	unsigned int width;
	92	} print;
	93	};
	94
	95	struct field_params {
	96	unsigned int num;
	97	struct field_param params[MAX_FIELDS];
	98	};
	99
	100	static void print_line(FILE of, const struct lnstat_file lnstat_files,
	101	const struct field_params *fp)
	102	{
	103	int i;
	104
	105	for (i = 0; i < fp->num; i++) {
a4f9e8df	106	const struct lnstat_field *lf = fp->params[i].lf;
0bb187ca	107
468dec75	108	fprintf(of, "%*lu\|", fp->params[i].print.width, lf->result);
0bb187ca SH	109	}
	110	fputc('\n', of);
	111	}
	112
a4f9e8df SH	113	static void print_json(FILE of, const struct lnstat_file lnstat_files,
	114	const struct field_params *fp)
	115	{
fcc16c22	116	json_writer_t *jw = jsonw_new(of);
a4f9e8df	117	int i;
a4f9e8df	118
fcc16c22	119	jsonw_start_object(jw);
a4f9e8df SH	120	for (i = 0; i < fp->num; i++) {
a4f9e8df SH	121	const struct lnstat_field *lf = fp->params[i].lf;
3d0b7439	122
fcc16c22	123	jsonw_uint_field(jw, lf->name, lf->result);
a4f9e8df	124	}
fcc16c22 SH	125	jsonw_end_object(jw);
fcc16c22 SH	126	jsonw_destroy(&jw);
a4f9e8df SH	127	}
a4f9e8df SH	128
0bb187ca SH	129	/* find lnstat_field according to user specification */
	130	static int map_field_params(struct lnstat_file *lnstat_files,
	131	struct field_params *fps, int interval)
	132	{
	133	int i, j = 0;
	134	struct lnstat_file *lf;
	135
	136	/* no field specification on commandline, need to build default */
	137	if (!fps->num) {
	138	for (lf = lnstat_files; lf; lf = lf->next) {
	139	for (i = 0; i < lf->num_fields; i++) {
	140	fps->params[j].lf = &lf->fields[i];
	141	fps->params[j].lf->file->interval.tv_sec =
	142	interval;
	143	if (!fps->params[j].print.width)
ae665a52	144	fps->params[j].print.width =
0bb187ca	145	FIELD_WIDTH_DEFAULT;
3d0b7439	146
f309d0ae SH	147	if (++j >= MAX_FIELDS - 1) {
f309d0ae SH	148	fprintf(stderr,
acd1e437	149	"WARN: MAX_FIELDS (%d) reached, truncating number of keys\n",
f309d0ae	150	MAX_FIELDS);
f493dc30	151	goto full;
f309d0ae	152	}
0bb187ca SH	153	}
0bb187ca SH	154	}
acd1e437	155	full:
0bb187ca SH	156	fps->num = j;
	157	return 1;
	158	}
	159
	160	for (i = 0; i < fps->num; i++) {
	161	fps->params[i].lf = lnstat_find_field(lnstat_files,
	162	fps->params[i].name);
	163	if (!fps->params[i].lf) {
	164	fprintf(stderr, "Field `%s' unknown\n",
	165	fps->params[i].name);
	166	return 0;
	167	}
	168	fps->params[i].lf->file->interval.tv_sec = interval;
	169	if (!fps->params[i].print.width)
	170	fps->params[i].print.width = FIELD_WIDTH_DEFAULT;
	171	}
	172	return 1;
	173	}
	174
	175	struct table_hdr {
	176	int num_lines;
	177	char *hdr[HDR_LINES];
	178	};
	179
	180	static struct table_hdr build_hdr_string(struct lnstat_file lnstat_files,
	181	struct field_params *fps,
	182	int linewidth)
	183	{
acd1e437	184	int h, i;
0bb187ca SH	185	static struct table_hdr th;
	186	int ofs = 0;
	187
f89bb021 PS	188	for (i = 0; i < HDR_LINES; i++)
f89bb021 PS	189	th.hdr[i] = calloc(1, HDR_LINE_LENGTH);
0bb187ca SH	190
	191	for (i = 0; i < fps->num; i++) {
	192	char cname, fname = fps->params[i].lf->name;
0bb187ca SH	193	unsigned int width = fps->params[i].print.width;
0bb187ca SH	194
468dec75	195	snprintf(th.hdr[0]+ofs, width+2, "%.s\|", width, width,
0bb187ca SH	196	fps->params[i].lf->file->basename);
	197
	198	cname = fname;
	199	for (h = 1; h < HDR_LINES; h++) {
	200	if (cname - fname >= strlen(fname))
468dec75 SH	201	snprintf(th.hdr[h]+ofs, width+2,
468dec75 SH	202	"%.s\|", width, width, "");
0bb187ca SH	203	else {
0bb187ca SH	204	th.num_lines = h+1;
468dec75 SH	205	snprintf(th.hdr[h]+ofs, width+2,
468dec75 SH	206	"%.s\|", width, width, cname);
0bb187ca SH	207	}
	208	cname += width;
	209	}
	210	ofs += width+1;
	211	}
	212	/* fill in spaces */
	213	for (h = 1; h <= th.num_lines; h++) {
	214	for (i = 0; i < ofs; i++) {
	215	if (th.hdr[h][i] == '\0')
	216	th.hdr[h][i] = ' ';
	217	}
	218	}
	219
	220	return &th;
	221	}
	222
	223	static int print_hdr(FILE of, struct table_hdr th)
	224	{
	225	int i;
	226
	227	for (i = 0; i < th->num_lines; i++) {
	228	fputs(th->hdr[i], of);
	229	fputc('\n', of);
	230	}
	231	return 0;
	232	}
ae665a52	233
0bb187ca SH	234
	235	int main(int argc, char **argv)
	236	{
	237	struct lnstat_file *lnstat_files;
	238	const char *basename;
a4f9e8df	239	int i, c;
0bb187ca SH	240	int interval = DEFAULT_INTERVAL;
	241	int hdr = 2;
	242	enum {
	243	MODE_DUMP,
a4f9e8df	244	MODE_JSON,
0bb187ca SH	245	MODE_NORMAL,
0bb187ca SH	246	} mode = MODE_NORMAL;
e7e2913f	247	unsigned long count = 0;
a4f9e8df	248	struct table_hdr *header;
0bb187ca SH	249	static struct field_params fp;
	250	int num_req_files = 0;
	251	char *req_files[LNSTAT_MAX_FILES];
ae665a52	252
0bb187ca SH	253	/* backwards compatibility mode for old tools */
0bb187ca SH	254	basename = strrchr(argv[0], '/');
ae665a52	255	if (basename)
0bb187ca SH	256	basename += 1; /* name after slash */
	257	else
	258	basename = argv[0]; /* no slash */
	259
	260	if (!strcmp(basename, "rtstat")) {
	261	/* rtstat compatibility mode */
	262	req_files[0] = "rt_cache";
	263	num_req_files = 1;
	264	} else if (!strcmp(basename, "ctstat")) {
	265	/* ctstat compatibility mode */
	266	req_files[0] = "ip_conntrack";
	267	num_req_files = 1;
	268	}
	269
acd1e437	270	while ((c = getopt_long(argc, argv, "Vc:djpf:h?i:k:s:w:",
0bb187ca	271	opts, NULL)) != -1) {
a4f9e8df	272	int len = 0;
e796b958 SH	273	char tmp, tok;
e796b958 SH	274
0bb187ca	275	switch (c) {
a4f9e8df SH	276	case 'c':
	277	count = strtoul(optarg, NULL, 0);
	278	break;
	279	case 'd':
	280	mode = MODE_DUMP;
	281	break;
	282	case 'j':
	283	mode = MODE_JSON;
	284	break;
	285	case 'f':
	286	req_files[num_req_files++] = strdup(optarg);
	287	break;
	288	case '?':
	289	case 'h':
	290	usage(argv[0], 0);
	291	break;
	292	case 'i':
	293	sscanf(optarg, "%u", &interval);
	294	break;
	295	case 'k':
	296	tmp = strdup(optarg);
	297	if (!tmp)
0bb187ca	298	break;
a4f9e8df SH	299	for (tok = strtok(tmp, ",");
	300	tok;
	301	tok = strtok(NULL, ",")) {
	302	if (fp.num >= MAX_FIELDS) {
3d0b7439	303	fprintf(stderr,
acd1e437	304	"WARN: too many keys requested: (%d max)\n",
a4f9e8df	305	MAX_FIELDS);
0bb187ca	306	break;
0bb187ca	307	}
a4f9e8df SH	308	fp.params[fp.num++].name = tok;
	309	}
	310	break;
	311	case 's':
	312	sscanf(optarg, "%u", &hdr);
	313	break;
	314	case 'w':
	315	tmp = strdup(optarg);
	316	if (!tmp)
0bb187ca	317	break;
a4f9e8df SH	318	i = 0;
	319	for (tok = strtok(tmp, ",");
	320	tok;
	321	tok = strtok(NULL, ",")) {
	322	len = strtoul(tok, NULL, 0);
	323	if (len > FIELD_WIDTH_MAX)
	324	len = FIELD_WIDTH_MAX;
	325	fp.params[i].print.width = len;
	326	i++;
	327	}
	328	if (i == 1) {
	329	for (i = 0; i < MAX_FIELDS; i++)
0bb187ca	330	fp.params[i].print.width = len;
a4f9e8df SH	331	}
	332	break;
	333	default:
	334	usage(argv[0], 1);
	335	break;
0bb187ca SH	336	}
	337	}
	338
	339	lnstat_files = lnstat_scan_dir(PROC_NET_STAT, num_req_files,
	340	(const char **) req_files);
	341
	342	switch (mode) {
0bb187ca	343	case MODE_DUMP:
b1410e0a	344	lnstat_dump(stdout, lnstat_files);
0bb187ca	345	break;
0bb187ca	346
a4f9e8df SH	347	case MODE_NORMAL:
a4f9e8df SH	348	case MODE_JSON:
0bb187ca SH	349	if (!map_field_params(lnstat_files, &fp, interval))
0bb187ca SH	350	exit(1);
ae665a52	351
0bb187ca SH	352	header = build_hdr_string(lnstat_files, &fp, 80);
	353	if (!header)
	354	exit(1);
	355
acd1e437	356	if (interval < 1)
a4f9e8df	357	interval = 1;
0bb187ca	358
fdb347f7	359	for (i = 0; i < count \|\| !count; i++) {
0bb187ca	360	lnstat_update(lnstat_files);
a4f9e8df SH	361	if (mode == MODE_JSON)
	362	print_json(stdout, lnstat_files, &fp);
	363	else {
fdb347f7 PS	364	if ((hdr > 1 && !(i % 20)) \|\|
fdb347f7 PS	365	(hdr == 1 && i == 0))
a4f9e8df SH	366	print_hdr(stdout, header);
	367	print_line(stdout, lnstat_files, &fp);
	368	}
f50332c5	369	fflush(stdout);
e7e2913f	370	if (i < count - 1 \|\| !count)
a4f9e8df	371	sleep(interval);
0bb187ca	372	}
a4f9e8df	373	break;
0bb187ca SH	374	}
	375
	376	return 1;
	377	}