77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
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/* $NetBSD: getifname.c,v 1.1.1.1 2004/03/28 08:56:18 martti Exp $ */
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#include "ipf.h"
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#include "kmem.h"
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/*
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* Given a pointer to an interface in the kernel, return a pointer to a
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* string which is the interface name.
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*/
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char *getifname(ptr)
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struct ifnet *ptr;
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{
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#if SOLARIS || defined(__hpux)
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# if SOLARIS
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# include <sys/mutex.h>
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# include <sys/condvar.h>
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# endif
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# ifdef __hpux
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# include "compat.h"
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# endif
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# include "../pfil/qif.h"
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char *ifname;
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qif_t qif;
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if ((void *)ptr == (void *)-1)
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return "!";
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if (ptr == NULL)
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return "-";
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if (kmemcpy((char *)&qif, (u_long)ptr, sizeof(qif)) == -1)
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return "X";
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ifname = strdup(qif.qf_name);
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if ((ifname != NULL) && (*ifname == '\0')) {
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free(ifname);
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return "!";
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}
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return ifname;
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#else
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# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
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defined(__OpenBSD__) || \
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(defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
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#else
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char buf[32];
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int len;
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# endif
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struct ifnet netif;
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if ((void *)ptr == (void *)-1)
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return "!";
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if (ptr == NULL)
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return "-";
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if (kmemcpy((char *)&netif, (u_long)ptr, sizeof(netif)) == -1)
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return "X";
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# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
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defined(__OpenBSD__) || defined(linux) || \
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(defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
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return strdup(netif.if_xname);
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# else
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if (kstrncpy(buf, (u_long)netif.if_name, sizeof(buf)) == -1)
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return "X";
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if (netif.if_unit < 10)
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len = 2;
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else if (netif.if_unit < 1000)
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len = 3;
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else if (netif.if_unit < 10000)
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len = 4;
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else
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len = 5;
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buf[sizeof(buf) - len] = '\0';
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sprintf(buf + strlen(buf), "%d", netif.if_unit % 10000);
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return strdup(buf);
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# endif
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#endif
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}
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