1 /* 2 * Copyright (C) 2003 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 7 * Use is subject to license terms. 8 */ 9 10 #pragma ident "%Z%%M% %I% %E% SMI" 11 12 #include "ipf.h" 13 #include "kmem.h" 14 15 /* 16 * Given a pointer to an interface in the kernel, return a pointer to a 17 * string which is the interface name. 18 * 19 * The same code is used to run in two different environments: in ipfstat 20 * and in ipftest. In ipftest, kmemcpy is wrapper for bcopy but in ipfstat, 21 * it is used as an interface to libkvm. 22 */ 23 char *getifname(ptr) 24 struct ifnet *ptr; 25 { 26 # if SOLARIS 27 # include <sys/mutex.h> 28 # include <sys/condvar.h> 29 # endif 30 # ifdef __hpux 31 # include "compat.h" 32 # endif 33 # if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \ 34 defined(__OpenBSD__) || \ 35 (defined(__FreeBSD__) && (__FreeBSD_version >= 501113)) 36 #else 37 char buf[32]; 38 int len; 39 # endif 40 struct ifnet netif; 41 42 # ifdef SOLARIS_PFHOOKS 43 if ((opts & OPT_DONOTHING) == 0) 44 return "@"; 45 # endif 46 47 if ((void *)ptr == (void *)-1) 48 return "!"; 49 if (ptr == NULL) 50 return "-"; 51 52 if (kmemcpy((char *)&netif, (u_long)ptr, sizeof(netif)) == -1) 53 return "X"; 54 # if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \ 55 defined(__OpenBSD__) || defined(linux) || \ 56 (defined(__FreeBSD__) && (__FreeBSD_version >= 501113)) 57 return strdup(netif.if_xname); 58 # else 59 if (kstrncpy(buf, (u_long)netif.if_name, sizeof(buf)) == -1) 60 return "X"; 61 if (netif.if_unit < 10) 62 len = 2; 63 else if (netif.if_unit < 1000) 64 len = 3; 65 else if (netif.if_unit < 10000) 66 len = 4; 67 else 68 len = 5; 69 buf[sizeof(buf) - len] = '\0'; 70 sprintf(buf + strlen(buf), "%d", netif.if_unit % 10000); 71 return strdup(buf); 72 # endif 73 } 74