78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/* MiniUPnP project
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* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
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* author: Gleb Smirnoff <glebius@FreeBSD.org>
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* (c) 2006 Ryan Wagoner
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* (c) 2014 Gleb Smirnoff
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* This software is subject to the conditions detailed
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* in the LICENCE file provided within the distribution */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <errno.h>
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#include <ifaddrs.h>
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#include <string.h>
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#include <syslog.h>
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#ifdef ENABLE_GETIFSTATS_CACHING
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#include <time.h>
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#endif
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#include "../getifstats.h"
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#include "../config.h"
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int
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getifstats(const char *ifname, struct ifdata *data)
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{
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static struct ifaddrs *ifap, *ifa;
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#ifdef ENABLE_GETIFSTATS_CACHING
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static time_t cache_timestamp;
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time_t current_time;
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#endif
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if(!data)
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return -1;
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data->baudrate = 4200000;
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data->opackets = 0;
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data->ipackets = 0;
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data->obytes = 0;
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data->ibytes = 0;
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if(!ifname || ifname[0]=='\0')
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return -1;
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#ifdef ENABLE_GETIFSTATS_CACHING
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current_time = time(NULL);
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if (ifap != NULL &&
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current_time < cache_timestamp + GETIFSTATS_CACHING_DURATION)
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goto copy;
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#endif
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if (ifap != NULL) {
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freeifaddrs(ifap);
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ifap = NULL;
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}
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if (getifaddrs(&ifap) != 0) {
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syslog (LOG_ERR, "getifstats() : getifaddrs(): %s",
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strerror(errno));
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return (-1);
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}
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for (ifa = ifap; ifa; ifa = ifa->ifa_next)
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if (ifa->ifa_addr->sa_family == AF_LINK &&
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strcmp(ifa->ifa_name, ifname) == 0) {
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#ifdef ENABLE_GETIFSTATS_CACHING
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cache_timestamp = current_time;
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copy:
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#endif
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#define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s)
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data->opackets = IFA_STAT(opackets);
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data->ipackets = IFA_STAT(ipackets);
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data->obytes = IFA_STAT(obytes);
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data->ibytes = IFA_STAT(ibytes);
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data->baudrate = IFA_STAT(baudrate);
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return (0);
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}
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return (-1);
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}
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