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  • Committer: Bazaar Package Importer
  • Author(s): Jochen Friedrich
  • Date: 2010-06-10 18:02:54 UTC
  • mto: (1.4.1 experimental)
  • mto: This revision was merged to the branch mainline in revision 44.
  • Revision ID: james.westby@ubuntu.com-20100610180254-6ezvupl2clicwdqf
Import upstream version 5.4.3~dfsg

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agent/mibgroup/ip-mib/data_access/arp_linux.c
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/*
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 *  Interface MIB architecture support
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 *
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 * $Id: arp_linux.c 16381 2007-05-17 21:53:28Z hardaker $
 
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 * $Id: arp_linux.c 17892 2009-12-09 14:37:16Z jsafranek $
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 */
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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    char            line[128];
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    int             rc = 0;
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    netsnmp_arp_entry *entry;
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    char           arp[3*NETSNMP_ACCESS_ARP_PHYSADDR_BUF_SIZE+1];
 
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    char           *arp_token;
 
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    int             i;
 
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    netsnmp_assert(NULL != container);
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#define PROCFILE "/proc/net/arp"
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     */
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    while (fgets(line, sizeof(line), in)) {
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        int             za, zb, zc, zd, ze, zf, zg, zh, zi, zj;
 
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        int             za, zb, zc, zd;
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        int             tmp_flags;
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        char            ifname[21];
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        rc = sscanf(line,
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                    "%d.%d.%d.%d 0x%*x 0x%x %x:%x:%x:%x:%x:%x %*[^ ] %20s\n",
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                    &za, &zb, &zc, &zd, &tmp_flags, &ze, &zf, &zg, &zh, &zi,
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                    &zj, ifname);
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        if (12 != rc) {            
 
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                    "%d.%d.%d.%d 0x%*x 0x%x %96s %*[^ ] %20s\n",
 
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                    &za, &zb, &zc, &zd, &tmp_flags, arp, ifname);
 
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        if (7 != rc) {
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            snmp_log(LOG_ERR, PROCFILE " data format error (%d!=12)\n", rc);
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            snmp_log(LOG_ERR, " line ==|%s|\n", line);
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            continue;
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        }
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        DEBUGMSGTL(("access:arp:container",
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                    "ip addr %d.%d.%d.%d, flags 0x%X, hw addr "
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                    "%x:%x:%x:%x:%x:%x, name %s\n",
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                    za,zb,zc,zd, tmp_flags, ze,zf,zg,zh,zi,zj, ifname ));
 
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                    "%s, name %s\n",
 
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                    za,zb,zc,zd, tmp_flags, arp, ifname ));
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        /*
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         */
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        /*
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         * parse hw addr
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         */
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        entry->arp_physaddress[0] = ze;
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        entry->arp_physaddress[1] = zf;
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        entry->arp_physaddress[2] = zg;
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        entry->arp_physaddress[3] = zh;
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        entry->arp_physaddress[4] = zi;
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        entry->arp_physaddress[5] = zj;
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        entry->arp_physaddress_len = 6;
 
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        for (arp_token = strtok(arp, ":"), i=0; arp_token != NULL; arp_token = strtok(NULL, ":"), i++) {
 
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            entry->arp_physaddress[i] = strtol(arp_token, NULL, 16);
 
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        }
 
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        entry->arp_physaddress_len = i;
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        /*
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         * what can we do with hw? from arp manpage: