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