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root/i-scream/projects/libstatgrab/src/libstatgrab/network_stats.c

Comparing projects/libstatgrab/src/libstatgrab/network_stats.c (file contents):
Revision 1.6 by pajs, Fri Mar 7 11:56:44 2003 UTC vs.
Revision 1.42 by ats, Sat Feb 14 12:22:45 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2004 i-scream
5		*
6	<	* This program is free software; you can redistribute it and/or
7	<	* modify it under the terms of the GNU General Public License
8	<	* as published by the Free Software Foundation; either version 2
9	<	* of the License, or (at your option) any later version.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library is distributed in the hope that it will be useful,
12		* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	<	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14	<	* GNU General Public License for more details.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser General Public License for more details.
15		*
16	<	* You should have received a copy of the GNU General Public License
17	<	* along with this program; if not, write to the Free Software
18	<	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
#	Line 25 | Line 28
28		#include <stdlib.h>
29		#include <string.h>
30		#include "statgrab.h"
31	<	#include "time.h"
31	>	#include <time.h>
32		#ifdef SOLARIS
33		#include <kstat.h>
34		#include <sys/sysinfo.h>
#	Line 34 | Line 37
37		#include <stdio.h>
38		#include <sys/types.h>
39		#include <regex.h>
40	+	#include <sys/ioctl.h>
41	+	#include <sys/socket.h>
42	+	#include <net/if.h>
43	+	#include <ctype.h>
44		#include "tools.h"
45	+	/* Stuff which could be defined by defining KERNEL, but
46	+	* that would be a bad idea, so we'll just declare it here
47	+	*/
48	+	typedef __uint8_t u8;
49	+	typedef __uint16_t u16;
50	+	typedef __uint32_t u32;
51	+	typedef __uint64_t u64;
52	+	#include <linux/ethtool.h>
53	+	#include <linux/sockios.h>
54	+	#include <unistd.h>
55		#endif
56	+	#ifdef ALLBSD
57	+	#include <sys/types.h>
58	+	#include <sys/socket.h>
59	+	#include <ifaddrs.h>
60	+	#include <net/if.h>
61	+	#include <net/if_media.h>
62	+	#include <sys/ioctl.h>
63	+	#endif
64
65		static network_stat_t *network_stats=NULL;
66		static int interfaces=0;
#	Line 90 | Line 115 | network_stat_t *get_network_stats(int *entries){
115
116		#ifdef LINUX
117		FILE *f;
118	<	/* Horrible big enough, but it should be quite easily */
118	>	/* Horrible big enough, but it should be easily big enough */
119		char line[8096];
120		regex_t regex;
121		regmatch_t line_match[4];
122		#endif
123	+	#ifdef ALLBSD
124	+	struct ifaddrs *net, *net_ptr;
125	+	struct if_data *net_data;
126	+	#endif
127
128	+	#ifdef ALLBSD
129	+	if(getifaddrs(&net) != 0){
130	+	return NULL;
131	+	}
132	+
133	+	interfaces=0;
134	+
135	+	for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
136	+	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
137	+	network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
138	+	if(network_stats==NULL){
139	+	return NULL;
140	+	}
141	+	network_stat_ptr=network_stats+interfaces;
142	+
143	+	if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
144	+	network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
145	+	if(network_stat_ptr->interface_name==NULL) return NULL;
146	+	net_data=(struct if_data *)net_ptr->ifa_data;
147	+	network_stat_ptr->rx=net_data->ifi_ibytes;
148	+	network_stat_ptr->tx=net_data->ifi_obytes;
149	+	network_stat_ptr->systime=time(NULL);
150	+	interfaces++;
151	+	}
152	+	freeifaddrs(net);
153	+	#endif
154	+
155		#ifdef SOLARIS
156		if ((kc = kstat_open()) == NULL) {
157		return NULL;
#	Line 107 | Line 163 | network_stat_t *get_network_stats(int *entries){
163		if (!strcmp(ksp->ks_class, "net")) {
164		kstat_read(kc, ksp, NULL);
165
166	<	if((knp=kstat_data_lookup(ksp, "rbytes64"))==NULL){
166	>	#ifdef SOL7
167	>	#define RLOOKUP "rbytes"
168	>	#define WLOOKUP "obytes"
169	>	#define VALTYPE value.ui32
170	>	#else
171	>	#define RLOOKUP "rbytes64"
172	>	#define WLOOKUP "obytes64"
173	>	#define VALTYPE value.ui64
174	>	#endif
175	>
176	>	if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){
177		/* Not a network interface, so skip to the next entry */
178		continue;
179		}
#	Line 117 | Line 183 | network_stat_t *get_network_stats(int *entries){
183		return NULL;
184		}
185		network_stat_ptr=network_stats+interfaces;
186	<	network_stat_ptr->rx=knp->value.ui64;
186	>	network_stat_ptr->rx=knp->VALTYPE;
187
188	<	if((knp=kstat_data_lookup(ksp, "obytes64"))==NULL){
188	>	if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){
189		/* Not a network interface, so skip to the next entry */
190		continue;
191		}
192	<	network_stat_ptr->tx=knp->value.ui64;
192	>	network_stat_ptr->tx=knp->VALTYPE;
193		if(network_stat_ptr->interface_name!=NULL){
194		free(network_stat_ptr->interface_name);
195		}
#	Line 173 | Line 239 | network_stat_t *get_network_stats(int *entries){
239
240		interfaces++;
241		}
242	+	fclose(f);
243	+	regfree(&regex);
244
245		#endif
246	+
247	+	#ifdef CYGWIN
248	+	return NULL;
249	+	#endif
250	+
251		*entries=interfaces;
252
253		return network_stats;
254		}
255
256	<	network_stat_t *get_network_stats_diff(int *entries){
257	<	static network_stat_t *network_stats_diff=NULL;
258	<	static int sizeof_net_stats_diff=0;
259	<	network_stat_t *network_stats_ptr, *network_stats_diff_ptr;
260	<	int ifaces, x, y;
256	>	long long transfer_diff(long long new, long long old){
257	>	#if defined(SOL7) || defined(LINUX) || defined(FREEBSD)
258	>	#define MAXVAL 4294967296LL
259	>	#else
260	>	#define MAXVAL 18446744073709551616LL
261	>	#endif
262	>	long long result;
263	>	if(new>=old){
264	>	result = (new-old);
265	>	}else{
266	>	result = (MAXVAL+(new-old));
267	>	}
268
269	<	if(network_stats==NULL){
270	<	network_stats_ptr=get_network_stats(&ifaces);
271	<	*entries=ifaces;
272	<	return network_stats_ptr;
269	>	return result;
270	>
271	>	}
272	>
273	>	network_stat_t *get_network_stats_diff(int *entries) {
274	>	static network_stat_t *diff = NULL;
275	>	static int diff_count = 0;
276	>	network_stat_t *src, *dest;
277	>	int i, j, new_count;
278	>
279	>	if (network_stats == NULL) {
280	>	/* No previous stats, so we can't calculate a difference. */
281	>	return get_network_stats(entries);
282		}
283
284	<	network_stats_diff=network_stat_malloc(interfaces, &sizeof_net_stats_diff, network_stats_diff);
285	<	if(network_stats_diff==NULL){
284	>	/* Resize the results array to match the previous stats. */
285	>	diff = network_stat_malloc(interfaces, &diff_count, diff);
286	>	if (diff == NULL) {
287		return NULL;
288		}
289
290	<	network_stats_ptr=network_stats;
291	<	network_stats_diff_ptr=network_stats_diff;
290	>	/* Copy the previous stats into the result. */
291	>	for (i = 0; i < diff_count; i++) {
292	>	src = &network_stats[i];
293	>	dest = &diff[i];
294
295	<	for(ifaces=0;ifaces<interfaces;ifaces++){
296	<	if(network_stats_diff_ptr->interface_name!=NULL){
205	<	free(network_stats_diff_ptr->interface_name);
295	>	if (dest->interface_name != NULL) {
296	>	free(dest->interface_name);
297		}
298	<	network_stats_diff_ptr->interface_name=strdup(network_stats_ptr->interface_name);
299	<	network_stats_diff_ptr->tx=network_stats_ptr->tx;
300	<	network_stats_diff_ptr->rx=network_stats_ptr->rx;
301	<	network_stats_diff_ptr->systime=network_stats->systime;
298	>	dest->interface_name = strdup(src->interface_name);
299	>	dest->rx = src->rx;
300	>	dest->tx = src->tx;
301	>	dest->systime = src->systime;
302	>	}
303
304	<	network_stats_ptr++;
305	<	network_stats_diff_ptr++;
304	>	/* Get a new set of stats. */
305	>	if (get_network_stats(&new_count) == NULL) {
306	>	return NULL;
307		}
215	–	network_stats_ptr=get_network_stats(&ifaces);
216	–	network_stats_diff_ptr=network_stats_diff;
308
309	<	for(x=0;x<sizeof_net_stats_diff;x++){
309	>	/* For each previous stat... */
310	>	for (i = 0; i < diff_count; i++) {
311	>	dest = &diff[i];
312
313	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
314	<	network_stats_diff_ptr->tx = network_stats_ptr->tx - network_stats_diff_ptr->tx;
315	<	network_stats_diff_ptr->rx = network_stats_ptr->rx - network_stats_diff_ptr->rx;
316	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
313	>	/* ... find the corresponding new stat ... */
314	>	for (j = 0; j < new_count; j++) {
315	>	/* Try the new stat in the same position first,
316	>	since that's most likely to be it. */
317	>	src = &network_stats[(i + j) % new_count];
318	>	if (strcmp(src->interface_name, dest->interface_name) == 0) {
319	>	break;
320	>	}
321	>	}
322	>	if (j == new_count) {
323	>	/* No match found. */
324	>	continue;
325	>	}
326	>
327	>	/* ... and subtract the previous stat from it to get the
328	>	difference. */
329	>	dest->rx = transfer_diff(src->rx, dest->rx);
330	>	dest->tx = transfer_diff(src->tx, dest->tx);
331	>	dest->systime = src->systime - dest->systime;
332	>	}
333	>
334	>	*entries = diff_count;
335	>	return diff;
336	>	}
337	>	/* NETWORK INTERFACE STATS */
338	>
339	>	void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
340	>
341	>	for(net_stats+=start; start<end; start++){
342	>	net_stats->interface_name=NULL;
343	>	net_stats->speed=0;
344	>	net_stats->dup=UNKNOWN_DUPLEX;
345	>	net_stats++;
346	>	}
347	>	}
348	>
349	>	network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){
350	>
351	>	if(net_stats==NULL){
352	>
353	>	if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
354	>	return NULL;
355	>	}
356	>	network_iface_stat_init(0, needed_entries, net_stats);
357	>	*cur_entries=needed_entries;
358	>
359	>	return net_stats;
360	>	}
361	>
362	>
363	>	if(*cur_entries<needed_entries){
364	>	net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
365	>	if(net_stats==NULL){
366	>	return NULL;
367	>	}
368	>	network_iface_stat_init(*cur_entries, needed_entries, net_stats);
369	>	*cur_entries=needed_entries;
370	>	}
371	>
372	>	return net_stats;
373	>	}
374	>
375	>	network_iface_stat_t *get_network_iface_stats(int *entries){
376	>	static network_iface_stat_t *network_iface_stats;
377	>	network_iface_stat_t *network_iface_stat_ptr;
378	>	static int sizeof_network_iface_stats=0;
379	>	static int ifaces;
380	>
381	>	#ifdef SOLARIS
382	>	kstat_ctl_t *kc;
383	>	kstat_t *ksp;
384	>	kstat_named_t *knp;
385	>	#endif
386	>	#ifdef ALLBSD
387	>	struct ifaddrs *net, *net_ptr;
388	>	struct ifmediareq ifmed;
389	>	struct ifreq ifr;
390	>	int sock;
391	>	int x;
392	>	#endif
393	>	#ifdef LINUX
394	>	FILE *f;
395	>	/* Horrible big enough, but it should be easily big enough */
396	>	char line[8096];
397	>	int sock;
398	>	#endif
399	>	ifaces = 0;
400	>	#ifdef ALLBSD
401	>	if(getifaddrs(&net) != 0){
402	>	return NULL;
403	>	}
404	>
405	>	if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
406	>
407	>	for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
408	>	if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
409	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
410	>	if(network_iface_stats==NULL){
411	>	return NULL;
412	>	}
413	>	network_iface_stat_ptr = network_iface_stats + ifaces;
414	>
415	>	memset(&ifr, 0, sizeof(ifr));
416	>	strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
417	>
418	>	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
419	>	continue;
420	>	}
421	>	if((ifr.ifr_flags & IFF_UP) != 0){
422	>	network_iface_stat_ptr->up = 1;
423		}else{
424	<
425	<	network_stats_ptr=network_stats;
227	<	for(y=0;y<ifaces;y++){
228	<	if((strcmp(network_stats_diff_ptr->interface_name, network_stats_ptr->interface_name))==0){
229	<	network_stats_diff_ptr->tx = network_stats_ptr->tx - network_stats_diff_ptr->tx;
230	<	network_stats_diff_ptr->rx = network_stats_ptr->rx - network_stats_diff_ptr->rx;
231	<	network_stats_diff_ptr->systime = network_stats_ptr->systime - network_stats_diff_ptr->systime;
232	<	break;
233	<	}
424	>	network_iface_stat_ptr->up = 0;
425	>	}
426
427	<	network_stats_ptr++;
428	<	}
427	>	if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
428	>	network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
429	>	if (network_iface_stat_ptr->interface_name == NULL) return NULL;
430	>
431	>	network_iface_stat_ptr->speed = 0;
432	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
433	>	ifaces++;
434	>
435	>	memset(&ifmed, 0, sizeof(struct ifmediareq));
436	>	strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
437	>	if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
438	>	/* Not all interfaces support the media ioctls. */
439	>	continue;
440		}
441
442	<	network_stats_ptr++;
443	<	network_stats_diff_ptr++;
442	>	/* We may need to change this if we start doing wireless devices too */
443	>	if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
444	>	/* Not a ETHER device */
445	>	continue;
446	>	}
447	>
448	>	/* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
449	>	x = ifmed.ifm_active & 0x0f;
450	>	switch(x){
451	>	/* 10 Mbit connections. Speedy :) */
452	>	case(IFM_10_T):
453	>	case(IFM_10_2):
454	>	case(IFM_10_5):
455	>	case(IFM_10_STP):
456	>	case(IFM_10_FL):
457	>	network_iface_stat_ptr->speed = 10;
458	>	break;
459	>	/* 100 Mbit conneections */
460	>	case(IFM_100_TX):
461	>	case(IFM_100_FX):
462	>	case(IFM_100_T4):
463	>	case(IFM_100_VG):
464	>	case(IFM_100_T2):
465	>	network_iface_stat_ptr->speed = 100;
466	>	break;
467	>	/* 1000 Mbit connections */
468	>	case(IFM_1000_SX):
469	>	case(IFM_1000_LX):
470	>	case(IFM_1000_CX):
471	>	#if defined(FREEBSD) && !defined(FREEBSD5)
472	>	case(IFM_1000_TX):
473	>	case(IFM_1000_FX):
474	>	#else
475	>	case(IFM_1000_T):
476	>	#endif
477	>	network_iface_stat_ptr->speed = 1000;
478	>	break;
479	>	/* We don't know what it is */
480	>	default:
481	>	network_iface_stat_ptr->speed = 0;
482	>	break;
483	>	}
484	>
485	>	if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
486	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
487	>	}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
488	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
489	>	}else{
490	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
491	>	}
492	>
493	>	}
494	>	freeifaddrs(net);
495	>	close(sock);
496	>	#endif
497	>
498	>	#ifdef SOLARIS
499	>	if ((kc = kstat_open()) == NULL) {
500	>	return NULL;
501	>	}
502	>
503	>	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
504	>	if (!strcmp(ksp->ks_class, "net")) {
505	>	kstat_read(kc, ksp, NULL);
506	>	if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
507	>	/* Not a network interface, so skip to the next entry */
508	>	continue;
509	>	}
510	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
511	>	if(network_iface_stats==NULL){
512	>	return NULL;
513	>	}
514	>	network_iface_stat_ptr = network_iface_stats + ifaces;
515	>	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
516	>
517	>	if((knp=kstat_data_lookup(ksp, "link_up"))==NULL){
518	>	/* Not a network interface, so skip to the next entry */
519	>	continue;
520	>	}
521	>	/* Solaris has 1 for up, and 0 for not. As we do too */
522	>	network_iface_stat_ptr->up = knp->value.ui32;
523	>
524	>	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
525	>	/* Not a network interface, so skip to the next entry */
526	>	continue;
527	>	}
528	>
529	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
530	>	if(knp->value.ui32 == 2){
531	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
532	>	}
533	>	if(knp->value.ui32 == 1){
534	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
535	>	}
536	>
537	>	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
538	>	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
539	>	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
540	>	ifaces++;
541	>	}
542		}
543	+	kstat_close(kc);
544	+
545	+	#endif
546	+	#ifdef LINUX
547	+	f = fopen("/proc/net/dev", "r");
548	+	if(f == NULL){
549	+	return NULL;
550	+	}
551
552	<	*entries=sizeof_net_stats_diff;
553	<	return network_stats_diff;
554	<	}
552	>	/* Setup stuff so we can do the ioctl to get the info */
553	>	if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
554	>	return NULL;
555	>	}
556	>
557	>	/* Ignore first 2 lines.. Just headings */
558	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
559	>	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
560	>
561	>	while((fgets(line, sizeof(line), f)) != NULL){
562	>	char *name, *ptr;
563	>	struct ifreq ifr;
564	>	struct ethtool_cmd ethcmd;
565	>	int err;
566	>
567	>	/* Get the interface name */
568	>	ptr = strchr(line, ':');
569	>	if (ptr == NULL) continue;
570	>	*ptr='\0';
571	>	name = line;
572	>	while(isspace(*(name))){
573	>	name++;
574	>	}
575	>
576	>	memset(&ifr, 0, sizeof ifr);
577	>	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
578	>
579	>	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
580	>	continue;
581	>	}
582	>
583	>	/* We have a good interface to add */
584	>	network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
585	>	if(network_iface_stats==NULL){
586	>	return NULL;
587	>	}
588	>	network_iface_stat_ptr = network_iface_stats + ifaces;
589	>	network_iface_stat_ptr->interface_name = strdup(name);
590	>	if ((ifr.ifr_flags & IFF_UP) != 0) {
591	>	network_iface_stat_ptr->up = 1;
592	>	} else {
593	>	network_iface_stat_ptr->up = 0;
594	>	}
595	>
596	>	memset(&ethcmd, 0, sizeof ethcmd);
597	>	ethcmd.cmd = ETHTOOL_GSET;
598	>	ifr.ifr_data = (caddr_t) &ethcmd;
599	>
600	>	err = ioctl(sock, SIOCETHTOOL, &ifr);
601	>	if (err == 0) {
602	>	network_iface_stat_ptr->speed = ethcmd.speed;
603	>
604	>	switch (ethcmd.duplex) {
605	>	case 0x00:
606	>	network_iface_stat_ptr->dup = FULL_DUPLEX;
607	>	break;
608	>	case 0x01:
609	>	network_iface_stat_ptr->dup = HALF_DUPLEX;
610	>	break;
611	>	default:
612	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
613	>	}
614	>	} else {
615	>	/* Not all interfaces support the ethtool ioctl. */
616	>	network_iface_stat_ptr->speed = 0;
617	>	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
618	>	}
619	>
620	>	ifaces++;
621	>	}
622	>	close(sock);
623	>	fclose(f);
624	>	#endif
625	>	*entries = ifaces;
626	>	return network_iface_stats;
627	>	}
628

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