/* $OpenBSD: ifconfig.c,v 1.41 2000/11/10 18:18:05 itojun Exp $ */ /* $NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $ */ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1983, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; #else static char rcsid[] = "$OpenBSD: ifconfig.c,v 1.41 2000/11/10 18:18:05 itojun Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define NSIP #include #include #define IPXIP #include #include #include #define EON #include #include #include #ifndef INET_ONLY #include #endif #include #include #include #include #include #include #include #ifdef HAVE_IFADDRS_H #include #endif struct ifreq ifr, ridreq; struct ifaliasreq addreq; #ifdef INET6 struct in6_ifreq ifr6; struct in6_ifreq in6_ridreq; struct in6_aliasreq in6_addreq __attribute__((aligned(4))); #endif struct iso_ifreq iso_ridreq; struct iso_aliasreq iso_addreq; struct sockaddr_in netmask; struct netrange at_nr; /* AppleTalk net range */ int ipx_type = ETHERTYPE_II; char name[30]; int flags, metric, mtu, setaddr, setipdst, doalias; int clearaddr, s; int newaddr = 0; int nsellength = 1; int af = AF_INET; int dflag, mflag, lflag, uflag; int reset_if_flags; int explicit_prefix = 0; #ifdef INET6 int Lflag = 1; #endif void notealias __P((char *, int)); void notrailers __P((char *, int)); void setifaddr __P((char *, int)); void setifdstaddr __P((char *, int)); void setifflags __P((char *, int)); void setifbroadaddr __P((char *)); void setifipdst __P((char *)); void setifmetric __P((char *)); void setifmtu __P((char *, int)); void setifnwid __P((char *, int)); void setifnetmask __P((char *)); void setifprefixlen __P((char *, int)); void setnsellength __P((char *)); void setsnpaoffset __P((char *)); void setipxframetype __P((char *, int)); void setatrange __P((char *, int)); void setatphase __P((char *, int)); void gifsettunnel __P((char *, char *)); void dstsa __P((char *)); void srcsa __P((char *)); void clearsa __P((char *)); #ifdef INET6 void setia6flags __P((char *, int)); void setia6pltime __P((char *, int)); void setia6vltime __P((char *, int)); void setia6lifetime __P((char *, char *)); #endif void checkatrange __P ((struct sockaddr_at *)); void setmedia __P((char *, int)); void setmediaopt __P((char *, int)); void unsetmediaopt __P((char *, int)); void setmediainst __P((char *, int)); void setvlantag __P((char *, int)); void setvlandev __P((char *, int)); void unsetvlandev __P((char *, int)); void vlan_status (); void fixnsel __P((struct sockaddr_iso *)); int main __P((int, char *[])); /* * Media stuff. Whenever a media command is first performed, the * currently select media is grabbed for this interface. If `media' * is given, the current media word is modifed. `mediaopt' commands * only modify the set and clear words. They then operate on the * current media word later. */ int media_current; int mediaopt_set; int mediaopt_clear; int actions; /* Actions performed */ #define A_MEDIA 0x0001 /* media command */ #define A_MEDIAOPTSET 0x0002 /* mediaopt command */ #define A_MEDIAOPTCLR 0x0004 /* -mediaopt command */ #define A_MEDIAOPT (A_MEDIAOPTSET|A_MEDIAOPTCLR) #define A_MEDIAINST 0x0008 /* instance or inst command */ #define NEXTARG 0xffffff #define NEXTARG2 0xfffffe const struct cmd { char *c_name; int c_parameter; /* NEXTARG means next argv */ int c_action; /* defered action */ void (*c_func)(); } cmds[] = { { "up", IFF_UP, 0, setifflags } , { "down", -IFF_UP, 0, setifflags }, { "trailers", -1, 0, notrailers }, { "-trailers", 1, 0, notrailers }, { "arp", -IFF_NOARP, 0, setifflags }, { "-arp", IFF_NOARP, 0, setifflags }, { "debug", IFF_DEBUG, 0, setifflags }, { "-debug", -IFF_DEBUG, 0, setifflags }, { "alias", IFF_UP, 0, notealias }, { "-alias", -IFF_UP, 0, notealias }, { "delete", -IFF_UP, 0, notealias }, #ifdef notdef #define EN_SWABIPS 0x1000 { "swabips", EN_SWABIPS, 0, setifflags }, { "-swabips", -EN_SWABIPS, 0, setifflags }, #endif { "netmask", NEXTARG, 0, setifnetmask }, { "metric", NEXTARG, 0, setifmetric }, { "mtu", NEXTARG, 0, setifmtu }, { "nwid", NEXTARG, 0, setifnwid }, { "broadcast", NEXTARG, 0, setifbroadaddr }, { "ipdst", NEXTARG, 0, setifipdst }, { "prefixlen", NEXTARG, 0, setifprefixlen}, #ifdef INET6 { "anycast", IN6_IFF_ANYCAST, 0, setia6flags }, { "-anycast", -IN6_IFF_ANYCAST, 0, setia6flags }, { "tentative", IN6_IFF_TENTATIVE, 0, setia6flags }, { "-tentative", -IN6_IFF_TENTATIVE, 0, setia6flags }, { "pltime", NEXTARG, 0, setia6pltime }, { "vltime", NEXTARG, 0, setia6vltime }, #endif /*INET6*/ #ifndef INET_ONLY { "range", NEXTARG, 0, setatrange }, { "phase", NEXTARG, 0, setatphase }, { "snpaoffset", NEXTARG, 0, setsnpaoffset }, { "nsellength", NEXTARG, 0, setnsellength }, { "802.2", ETHERTYPE_8022, 0, setipxframetype }, { "802.2tr", ETHERTYPE_8022TR, 0, setipxframetype }, { "802.3", ETHERTYPE_8023, 0, setipxframetype }, { "snap", ETHERTYPE_SNAP, 0, setipxframetype }, { "EtherII", ETHERTYPE_II, 0, setipxframetype }, { "vlan", NEXTARG, 0, setvlantag }, { "vlandev", NEXTARG, 0, setvlandev }, { "-vlandev", 1, 0, unsetvlandev }, #endif /* INET_ONLY */ { "giftunnel", NEXTARG2, 0, gifsettunnel } , { "dstsa", NEXTARG, 0, dstsa } , { "srcsa", NEXTARG, 0, srcsa } , { "clearsa", NEXTARG, 0, clearsa } , { "link0", IFF_LINK0, 0, setifflags } , { "-link0", -IFF_LINK0, 0, setifflags } , { "link1", IFF_LINK1, 0, setifflags } , { "-link1", -IFF_LINK1, 0, setifflags } , { "link2", IFF_LINK2, 0, setifflags } , { "-link2", -IFF_LINK2, 0, setifflags } , { "media", NEXTARG, A_MEDIA, setmedia }, { "mediaopt", NEXTARG, A_MEDIAOPTSET, setmediaopt }, { "-mediaopt", NEXTARG, A_MEDIAOPTCLR, unsetmediaopt }, { "instance", NEXTARG, A_MEDIAINST, setmediainst }, { "inst", NEXTARG, A_MEDIAINST, setmediainst }, { NULL, /*src*/ 0, 0, setifaddr }, { NULL, /*dst*/ 0, 0, setifdstaddr }, { NULL, /*illegal*/0, 0, NULL }, }; void adjust_nsellength(); int getinfo __P((struct ifreq *)); void getsock __P((int)); void printif __P((struct ifreq *, int)); void printb __P((char *, unsigned short, char *)); void status __P((int)); void usage(); char *sec2str __P((time_t)); const char *get_media_type_string __P((int)); const char *get_media_subtype_string __P((int)); int get_media_subtype __P((int, const char *)); int get_media_options __P((int, const char *)); int lookup_media_word __P((const struct ifmedia_description *, int, const char *)); void print_media_word __P((int, int, int)); void process_media_commands __P((void)); void init_current_media __P((void)); /* * XNS support liberally adapted from code written at the University of * Maryland principally by James O'Toole and Chris Torek. */ void in_status __P((int)); void in_getaddr __P((char *, int)); #ifdef INET6 void in6_fillscopeid __P((struct sockaddr_in6 *sin6)); void in6_alias __P((struct in6_ifreq *)); void in6_status __P((int)); void in6_getaddr __P((char *, int)); void in6_getprefix __P((char *, int)); #endif void at_status __P((int)); void at_getaddr __P((char *, int)); void xns_status __P((int)); void xns_getaddr __P((char *, int)); void ipx_status __P((int)); void ipx_getaddr __P((char *, int)); void iso_status __P((int)); void iso_getaddr __P((char *, int)); void ieee80211_status __P((void)); /* Known address families */ const struct afswtch { char *af_name; short af_af; void (*af_status)(); void (*af_getaddr)(); void (*af_getprefix)(); u_long af_difaddr; u_long af_aifaddr; caddr_t af_ridreq; caddr_t af_addreq; } afs[] = { #define C(x) ((caddr_t) &x) { "inet", AF_INET, in_status, in_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, #ifdef INET6 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix, SIOCDIFADDR_IN6, SIOCAIFADDR_IN6, C(in6_ridreq), C(in6_addreq) }, #endif #ifndef INET_ONLY /* small version, for boot media */ { "atalk", AF_APPLETALK, at_status, at_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) }, { "ns", AF_NS, xns_status, xns_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, { "ipx", AF_IPX, ipx_status, ipx_getaddr, NULL, SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, { "iso", AF_ISO, iso_status, iso_getaddr, NULL, SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) }, #endif /* INET_ONLY */ { 0, 0, 0, 0 } }; const struct afswtch *afp; /*the address family being set or asked about*/ int main(argc, argv) int argc; char *argv[]; { register const struct afswtch *rafp; int aflag = 0; int ifaliases = 0; int i; if (argc < 2) usage(); argc--, argv++; if (!strcmp(*argv, "-a")) aflag = 1; else if (!strcmp(*argv, "-A")) { aflag = 1; ifaliases = 1; } else if (!strcmp(*argv, "-ma") || !strcmp(*argv, "-am")) { aflag = 1; mflag = 1; } else if (!strcmp(*argv, "-mA") || !strcmp(*argv, "-Am")) { aflag = 1; ifaliases = 1; mflag = 1; } else if (!strcmp(*argv, "-m")) { mflag = 1; argc--, argv++; if (argc < 1) usage(); strncpy(name, *argv, sizeof(name) - 1); } else strncpy(name, *argv, sizeof(name) - 1); argc--, argv++; if (argc > 0) { for (afp = rafp = afs; rafp->af_name; rafp++) if (strcmp(rafp->af_name, *argv) == 0) { afp = rafp; argc--; argv++; break; } rafp = afp; af = ifr.ifr_addr.sa_family = rafp->af_af; } if (aflag) { if (argc > 0) usage(); printif(NULL, ifaliases); exit(0); } strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); if (argc == 0) { printif(&ifr, 1); exit(0); } #ifdef INET6 /* initialization */ in6_addreq.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME; in6_addreq.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME; #endif if (getinfo(&ifr) < 0) exit(1); while (argc > 0) { register const struct cmd *p; for (p = cmds; p->c_name; p++) if (strcmp(*argv, p->c_name) == 0) break; if (p->c_name == 0 && setaddr) for (i = setaddr; i > 0; i--) { p++; if (p->c_func == NULL) errx(1, "extra address not accepted"); } if (p->c_func) { if (p->c_parameter == NEXTARG) { if (argv[1] == NULL) errx(1, "'%s' requires argument", p->c_name); (*p->c_func)(argv[1]); argc--, argv++; } else if (p->c_parameter == NEXTARG2) { if ((argv[1] == NULL) || (argv[2] == NULL)) errx(1, "'%s' requires 2 arguments", p->c_name); (*p->c_func)(argv[1], argv[2]); argc -= 2; argv += 2; } else (*p->c_func)(*argv, p->c_parameter); actions |= p->c_action; } argc--, argv++; } /* Process any media commands that may have been issued. */ process_media_commands(); if (af == AF_INET6 && explicit_prefix == 0) { /* * Aggregatable address architecture defines all prefixes * are 64. So, it is convenient to set prefixlen to 64 if * it is not specified. */ setifprefixlen("64", 0); /* in6_getprefix("64", MASK) if MASK is available here... */ } #ifndef INET_ONLY switch (af) { case AF_ISO: adjust_nsellength(); break; case AF_NS: if (setipdst) { struct nsip_req rq; int size = sizeof(rq); rq.rq_ns = addreq.ifra_addr; rq.rq_ip = addreq.ifra_dstaddr; if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0) warn("encapsulation routing"); } break; case AF_IPX: if (setipdst) { struct ipxip_req rq; int size = sizeof(rq); rq.rq_ipx = addreq.ifra_addr; rq.rq_ip = addreq.ifra_dstaddr; if (setsockopt(s, 0, SO_IPXIP_ROUTE, &rq, size) < 0) warn("encapsulation routing"); } break; case AF_APPLETALK: checkatrange((struct sockaddr_at *) &addreq.ifra_addr); break; } #endif /* INET_ONLY */ if (clearaddr) { int ret; strncpy(rafp->af_ridreq, name, sizeof ifr.ifr_name); if ((ret = ioctl(s, rafp->af_difaddr, rafp->af_ridreq)) < 0) { if (errno == EADDRNOTAVAIL && (doalias >= 0)) { /* means no previous address for interface */ } else warn("SIOCDIFADDR"); } } if (newaddr) { strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name); if (ioctl(s, rafp->af_aifaddr, rafp->af_addreq) < 0) warn("SIOCAIFADDR"); } exit(0); } void getsock(naf) int naf; { static int oaf = -1; if (oaf == naf) return; if (oaf != -1) close(s); s = socket(naf, SOCK_DGRAM, 0); if (s < 0) oaf = -1; else oaf = naf; } int getinfo(ifr) struct ifreq *ifr; { getsock(af); if (s < 0) err(1, "socket"); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)ifr) < 0) { warn("SIOCGIFFLAGS"); return (-1); } flags = ifr->ifr_flags; if (ioctl(s, SIOCGIFMETRIC, (caddr_t)ifr) < 0) { warn("SIOCGIFMETRIC"); metric = 0; } else metric = ifr->ifr_metric; if (ioctl(s, SIOCGIFMTU, (caddr_t)ifr) < 0) mtu = 0; else mtu = ifr->ifr_mtu; return (0); } void printif(ifrm, ifaliases) struct ifreq *ifrm; { #ifdef HAVE_IFADDRS_H struct ifaddrs *ifap, *ifa; const char *namep; struct ifreq *ifrp; int count = 0, noinet = 1; if (getifaddrs(&ifap) != 0) err(1, "getifaddrs"); namep = NULL; for (ifa = ifap; ifa; ifa = ifa->ifa_next) { if (ifrm && strncmp(ifrm->ifr_name, ifa->ifa_name, sizeof(ifrm->ifr_name))) continue; strncpy(name, ifa->ifa_name, sizeof(name)); name[sizeof(name) - 1] = '\0'; #ifdef INET6 /* quickhack: sizeof(ifr) < sizeof(ifr6) */ if (ifa->ifa_addr->sa_family == AF_INET6) { ifrp = (struct ifreq *)&ifr6; memset(&ifr6, 0, sizeof(ifr6)); } else { ifrp = 𝔦 memset(&ifr, 0, sizeof(ifr)); } #else ifrp = 𝔦 memset(&ifr, 0, sizeof(ifr)); #endif strncpy(ifrp->ifr_name, ifa->ifa_name, sizeof(ifrp->ifr_name)); /* XXX boundary check? */ memcpy(&ifrp->ifr_addr, ifa->ifa_addr, ifa->ifa_addr->sa_len); if (ifa->ifa_addr->sa_family == AF_LINK) { namep = ifa->ifa_name; if (getinfo(ifrp) < 0) continue; status(1); count++; noinet = 1; continue; } if (!namep || !strcmp(namep, ifa->ifa_name)) { register const struct afswtch *p; if (ifa->ifa_addr->sa_family == AF_INET && ifaliases == 0 && noinet == 0) continue; if ((p = afp) != NULL) { if (ifa->ifa_addr->sa_family == p->af_af) (*p->af_status)(1); } else { for (p = afs; p->af_name; p++) { if (ifa->ifa_addr->sa_family == p->af_af) (*p->af_status)(0); } } count++; if (ifa->ifa_addr->sa_family == AF_INET) noinet = 0; continue; } } freeifaddrs(ifap); if (count == 0) { fprintf(stderr, "%s: no such interface\n", name); exit(1); } #else char *inbuf = NULL; struct ifconf ifc; struct ifreq ifreq, *ifrp; int i, siz, len = 8192; int count = 0, noinet = 1; char ifrbuf[8192]; getsock(af); if (s < 0) err(1, "socket"); while (1) { ifc.ifc_len = len; ifc.ifc_buf = inbuf = realloc(inbuf, len); if (inbuf == NULL) err(1, "malloc"); if (ioctl(s, SIOCGIFCONF, &ifc) < 0) err(1, "SIOCGIFCONF"); if (ifc.ifc_len + sizeof(ifreq) < len) break; len *= 2; } ifrp = ifc.ifc_req; ifreq.ifr_name[0] = '\0'; for (i = 0; i < ifc.ifc_len; ) { ifrp = (struct ifreq *)((caddr_t)ifc.ifc_req + i); memcpy(ifrbuf, ifrp, sizeof(*ifrp)); siz = ((struct ifreq *)ifrbuf)->ifr_addr.sa_len; if (siz < sizeof(ifrp->ifr_addr)) siz = sizeof(ifrp->ifr_addr); siz += sizeof(ifrp->ifr_name); i += siz; /* avoid alignment issue */ if (sizeof(ifrbuf) < siz) errx(1, "ifr too big"); memcpy(ifrbuf, ifrp, siz); ifrp = (struct ifreq *)ifrbuf; if (ifrm && strncmp(ifrm->ifr_name, ifrp->ifr_name, sizeof(ifrp->ifr_name))) continue; strncpy(name, ifrp->ifr_name, sizeof(ifrp->ifr_name)); if (ifrp->ifr_addr.sa_family == AF_LINK) { ifreq = ifr = *ifrp; if (getinfo(&ifreq) < 0) continue; status(1); count++; noinet = 1; continue; } if (!strncmp(ifreq.ifr_name, ifrp->ifr_name, sizeof(ifrp->ifr_name))) { register const struct afswtch *p; if (ifrp->ifr_addr.sa_family == AF_INET && ifaliases == 0 && noinet == 0) continue; ifr = *ifrp; #ifdef INET6 /* quickhack: sizeof(ifr) < sizeof(ifr6) */ if (ifrp->ifr_addr.sa_family == AF_INET6) bcopy(ifrp, &ifr6, sizeof(ifr6)); #endif if ((p = afp) != NULL) { if (ifr.ifr_addr.sa_family == p->af_af) (*p->af_status)(1); } else { for (p = afs; p->af_name; p++) { if (ifr.ifr_addr.sa_family == p->af_af) (*p->af_status)(0); } } count++; if (ifrp->ifr_addr.sa_family == AF_INET) noinet = 0; continue; } } free(inbuf); if (count == 0) { fprintf(stderr, "%s: no such interface\n", name); exit(1); } #endif } #define RIDADDR 0 #define ADDR 1 #define MASK 2 #define DSTADDR 3 /*ARGSUSED*/ void setifaddr(addr, param) char *addr; int param; { /* * Delay the ioctl to set the interface addr until flags are all set. * The address interpretation may depend on the flags, * and the flags may change when the address is set. */ setaddr++; newaddr = 1; if (doalias == 0) clearaddr = 1; (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR)); } void gifsettunnel(src, dst) char *src; char *dst; { struct addrinfo hints, *srcres, *dstres; struct ifaliasreq addreq; int ecode; #ifdef INET6 struct in6_aliasreq in6_addreq; #endif /* INET6 */ memset(&hints, 0, sizeof(hints)); hints.ai_family = afp->af_af; if ((ecode = getaddrinfo(src, NULL, &hints, &srcres)) != 0) errx(1, "error in parsing address string: %s", gai_strerror(ecode)); if ((ecode = getaddrinfo(dst, NULL, &hints, &dstres)) != 0) errx(1, "error in parsing address string: %s", gai_strerror(ecode)); if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family) errx(1, "source and destination address families do not match"); switch (srcres->ai_addr->sa_family) { case AF_INET: bzero(&addreq, sizeof(addreq)); strncpy(addreq.ifra_name, name, IFNAMSIZ); bcopy(srcres->ai_addr, &addreq.ifra_addr, srcres->ai_addr->sa_len); bcopy(dstres->ai_addr, &addreq.ifra_dstaddr, dstres->ai_addr->sa_len); if (ioctl(s, SIOCSIFPHYADDR, (struct ifreq *) &addreq) < 0) warn("SIOCSIFPHYADDR"); break; #ifdef INET6 case AF_INET6: bzero(&in6_addreq, sizeof(in6_addreq)); strncpy(in6_addreq.ifra_name, name, IFNAMSIZ); bcopy(srcres->ai_addr, &in6_addreq.ifra_addr, srcres->ai_addr->sa_len); bcopy(dstres->ai_addr, &in6_addreq.ifra_dstaddr, dstres->ai_addr->sa_len); if (ioctl(s, SIOCSIFPHYADDR_IN6, (struct ifreq *) &in6_addreq) < 0) warn("SIOCSIFPHYADDR"); break; #endif /* INET6 */ default: warn("address family not supported"); } freeaddrinfo(srcres); freeaddrinfo(dstres); } static void handlesa(cmd, sa) int cmd; char *sa; { char *p1, *p2, *p; struct ifsa ifsa; struct addrinfo *res; struct protoent *prnt; int ecode; bzero(&ifsa, sizeof(ifsa)); strlcpy(ifsa.sa_ifname, name, sizeof ifsa.sa_ifname); p1 = strchr(sa, '/'); if (p1 == NULL) errx(1, "invalid SA"); else *(p1++) = '\0'; if (*p1 == '/') errx(1, "missing SPI"); p2 = strchr(p1, '/'); if (p2 == NULL) errx(1, "invalid SA"); else *(p2++) = '\0'; if (*p2 == '\0') errx(1, "invalid security protocol"); if ((ecode = getaddrinfo(sa, NULL, NULL, &res)) != 0) errx(1, "error in parsing address string: %s", gai_strerror(ecode)); bcopy(res->ai_addr, &ifsa.sa_dst, res->ai_addr->sa_len); freeaddrinfo(res); ifsa.sa_spi = htonl(strtoul(p1, &p, 16)); if ((p == NULL) || ((*p != '\0') && (*p != '/'))) errx(1, "bad SPI"); ifsa.sa_proto = strtoul(p2, &p, 10); if ((p == NULL) || (*p != '\0')) { prnt = getprotobyname(p2); if (prnt == NULL) errx(1, "bad security protocol"); ifsa.sa_proto = prnt->p_proto; } if (ioctl(s, cmd, (caddr_t)&ifsa) < 0) { switch (cmd) { case SIOCSENCDSTSA: warn("SIOCSENCDSTSA"); break; case SIOCSENCSRCSA: warn("SIOCSENCSRCSA"); break; case SIOCSENCCLEARSA: warn("SIOCSENCCLEARSA"); break; } } } void dstsa(sa) char *sa; { handlesa(SIOCSENCDSTSA, sa); } void srcsa(sa) char *sa; { handlesa(SIOCSENCSRCSA, sa); } void clearsa(sa) char *sa; { handlesa(SIOCSENCCLEARSA, sa); } void setifnetmask(addr) char *addr; { (*afp->af_getaddr)(addr, MASK); } void setifbroadaddr(addr) char *addr; { (*afp->af_getaddr)(addr, DSTADDR); } void setifipdst(addr) char *addr; { in_getaddr(addr, DSTADDR); setipdst++; clearaddr = 0; newaddr = 0; } #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) /*ARGSUSED*/ void notealias(addr, param) char *addr; int param; { if (setaddr && doalias == 0 && param < 0) memcpy(rqtosa(af_ridreq), rqtosa(af_addreq), rqtosa(af_addreq)->sa_len); doalias = param; if (param < 0) { clearaddr = 1; newaddr = 0; } else clearaddr = 0; } /*ARGSUSED*/ void notrailers(vname, value) char *vname; int value; { printf("Note: trailers are no longer sent, but always received\n"); } /*ARGSUSED*/ void setifdstaddr(addr, param) char *addr; int param; { setaddr++; (*afp->af_getaddr)(addr, DSTADDR); } /* * Note: doing an SIOCIGIFFLAGS scribbles on the union portion * of the ifreq structure, which may confuse other parts of ifconfig. * Make a private copy so we can avoid that. */ void setifflags(vname, value) char *vname; int value; { struct ifreq my_ifr; bcopy((char *)&ifr, (char *)&my_ifr, sizeof(struct ifreq)); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) err(1, "SIOCGIFFLAGS"); strncpy(my_ifr.ifr_name, name, sizeof (my_ifr.ifr_name)); flags = my_ifr.ifr_flags; if (value < 0) { value = -value; flags &= ~value; } else flags |= value; my_ifr.ifr_flags = flags; if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0) err(1, "SIOCSIFFLAGS"); } #ifdef INET6 void setia6flags(vname, value) char *vname; int value; { if (value < 0) { value = -value; in6_addreq.ifra_flags &= ~value; } else in6_addreq.ifra_flags |= value; } void setia6pltime(val, d) char *val; int d; { setia6lifetime("pltime", val); } void setia6vltime(val, d) char *val; int d; { setia6lifetime("vltime", val); } void setia6lifetime(cmd, val) char *cmd; char *val; { time_t newval, t; char *ep; t = time(NULL); newval = (time_t)strtoul(val, &ep, 0); if (val == ep) errx(1, "invalid %s", cmd); if (afp->af_af != AF_INET6) errx(1, "%s not allowed for the AF", cmd); if (strcmp(cmd, "vltime") == 0) { in6_addreq.ifra_lifetime.ia6t_expire = t + newval; in6_addreq.ifra_lifetime.ia6t_vltime = newval; } else if (strcmp(cmd, "pltime") == 0) { in6_addreq.ifra_lifetime.ia6t_preferred = t + newval; in6_addreq.ifra_lifetime.ia6t_pltime = newval; } } #endif void setifmetric(val) char *val; { strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); ifr.ifr_metric = atoi(val); if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0) warn("SIOCSIFMETRIC"); } void setifmtu(val, d) char *val; int d; { (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); ifr.ifr_mtu = atoi(val); if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0) warn("SIOCSIFMTU"); } void setifnwid(val, d) char *val; int d; { u_int8_t nwid[IEEE80211_NWID_LEN]; memset(&nwid, 0, sizeof(nwid)); (void)strncpy(nwid, val, sizeof(nwid)); (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_data = (caddr_t)nwid; if (ioctl(s, SIOCS80211NWID, (caddr_t)&ifr) < 0) warn("SIOCS80211NWID"); } void ieee80211_status() { u_int8_t nwid[IEEE80211_NWID_LEN + 1]; memset(&ifr, 0, sizeof(ifr)); ifr.ifr_data = (caddr_t)nwid; (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); nwid[IEEE80211_NWID_LEN] = 0; if (ioctl(s, SIOCG80211NWID, (caddr_t)&ifr) == 0) printf("\tnwid %s\n", nwid); } void init_current_media() { struct ifmediareq ifmr; /* * If we have not yet done so, grab the currently-selected * media. */ if ((actions & (A_MEDIA|A_MEDIAOPT)) == 0) { (void) memset(&ifmr, 0, sizeof(ifmr)); (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { /* * If we get E2BIG, the kernel is telling us * that there are more, so we can ignore it. */ if (errno != E2BIG) err(1, "SGIOCGIFMEDIA"); } media_current = ifmr.ifm_current; } /* Sanity. */ if (IFM_TYPE(media_current) == 0) errx(1, "%s: no link type?", name); } void process_media_commands() { if ((actions & (A_MEDIA|A_MEDIAOPT)) == 0) { /* Nothing to do. */ return; } /* * Media already set up, and commands sanity-checked. Set/clear * any options, and we're ready to go. */ media_current |= mediaopt_set; media_current &= ~mediaopt_clear; strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_media = media_current; if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0) err(1, "SIOCSIFMEDIA"); } void setmedia(val, d) char *val; int d; { int type, subtype, inst; init_current_media(); /* Only one media command may be given. */ if (actions & A_MEDIA) errx(1, "only one `media' command may be issued"); /* Must not come after mediaopt commands */ if (actions & A_MEDIAOPT) errx(1, "may not issue `media' after `mediaopt' commands"); /* * No need to check if `instance' has been issued; setmediainst() * craps out if `media' has not been specified. */ type = IFM_TYPE(media_current); inst = IFM_INST(media_current); /* Look up the subtype. */ subtype = get_media_subtype(type, val); /* Build the new current media word. */ media_current = IFM_MAKEWORD(type, subtype, 0, inst); /* Media will be set after other processing is complete. */ } void setmediaopt(val, d) char *val; int d; { init_current_media(); /* Can only issue `mediaopt' once. */ if (actions & A_MEDIAOPTSET) errx(1, "only one `mediaopt' command may be issued"); /* Can't issue `mediaopt' if `instance' has already been issued. */ if (actions & A_MEDIAINST) errx(1, "may not issue `mediaopt' after `instance'"); mediaopt_set = get_media_options(IFM_TYPE(media_current), val); /* Media will be set after other processing is complete. */ } void unsetmediaopt(val, d) char *val; int d; { init_current_media(); /* Can only issue `-mediaopt' once. */ if (actions & A_MEDIAOPTCLR) errx(1, "only one `-mediaopt' command may be issued"); /* May not issue `media' and `-mediaopt'. */ if (actions & A_MEDIA) errx(1, "may not issue both `media' and `-mediaopt'"); /* * No need to check for A_MEDIAINST, since the test for A_MEDIA * implicitly checks for A_MEDIAINST. */ mediaopt_clear = get_media_options(IFM_TYPE(media_current), val); /* Media will be set after other processing is complete. */ } void setmediainst(val, d) char *val; int d; { int type, subtype, options, inst; init_current_media(); /* Can only issue `instance' once. */ if (actions & A_MEDIAINST) errx(1, "only one `instance' command may be issued"); /* Must have already specified `media' */ if ((actions & A_MEDIA) == 0) errx(1, "must specify `media' before `instance'"); type = IFM_TYPE(media_current); subtype = IFM_SUBTYPE(media_current); options = IFM_OPTIONS(media_current); inst = atoi(val); if (inst < 0 || inst > IFM_INST_MAX) errx(1, "invalid media instance: %s", val); media_current = IFM_MAKEWORD(type, subtype, options, inst); /* Media will be set after other processing is complete. */ } const struct ifmedia_description ifm_type_descriptions[] = IFM_TYPE_DESCRIPTIONS; const struct ifmedia_description ifm_subtype_descriptions[] = IFM_SUBTYPE_DESCRIPTIONS; const struct ifmedia_description ifm_option_descriptions[] = IFM_OPTION_DESCRIPTIONS; const char * get_media_type_string(mword) int mword; { const struct ifmedia_description *desc; for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++) { if (IFM_TYPE(mword) == desc->ifmt_word) return (desc->ifmt_string); } return (""); } const char * get_media_subtype_string(mword) int mword; { const struct ifmedia_description *desc; for (desc = ifm_subtype_descriptions; desc->ifmt_string != NULL; desc++) { if (IFM_TYPE_MATCH(desc->ifmt_word, mword) && IFM_SUBTYPE(desc->ifmt_word) == IFM_SUBTYPE(mword)) return (desc->ifmt_string); } return (""); } int get_media_subtype(type, val) int type; const char *val; { int rval; rval = lookup_media_word(ifm_subtype_descriptions, type, val); if (rval == -1) errx(1, "unknown %s media subtype: %s", get_media_type_string(type), val); return (rval); } int get_media_options(type, val) int type; const char *val; { char *optlist, *str; int option, rval = 0; /* We muck with the string, so copy it. */ optlist = strdup(val); if (optlist == NULL) err(1, "strdup"); str = optlist; /* * Look up the options in the user-provided comma-separated list. */ for (; (str = strtok(str, ",")) != NULL; str = NULL) { option = lookup_media_word(ifm_option_descriptions, type, str); if (option == -1) errx(1, "unknown %s media option: %s", get_media_type_string(type), str); rval |= option; } free(optlist); return (rval); } int lookup_media_word(desc, type, val) const struct ifmedia_description *desc; int type; const char *val; { for (; desc->ifmt_string != NULL; desc++) { if (IFM_TYPE_MATCH(desc->ifmt_word, type) && strcasecmp(desc->ifmt_string, val) == 0) return (desc->ifmt_word); } return (-1); } void print_media_word(ifmw, print_type, as_syntax) int ifmw, print_type, as_syntax; { const struct ifmedia_description *desc; int seen_option = 0; if (print_type) printf("%s ", get_media_type_string(ifmw)); printf("%s%s", as_syntax ? "media " : "", get_media_subtype_string(ifmw)); /* Find options. */ for (desc = ifm_option_descriptions; desc->ifmt_string != NULL; desc++) { if (IFM_TYPE_MATCH(desc->ifmt_word, ifmw) && (ifmw & desc->ifmt_word) != 0 && (seen_option & IFM_OPTIONS(desc->ifmt_word)) == 0) { if (seen_option == 0) printf(" %s", as_syntax ? "mediaopt " : ""); printf("%s%s", seen_option ? "," : "", desc->ifmt_string); seen_option |= IFM_OPTIONS(desc->ifmt_word); } } if (IFM_INST(ifmw) != 0) printf(" instance %d", IFM_INST(ifmw)); } #define IFFBITS \ "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\ \11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST" static void phys_status(force) int force; { char psrcaddr[NI_MAXHOST]; char pdstaddr[NI_MAXHOST]; u_long srccmd, dstcmd; struct ifreq *ifrp; char *ver = ""; #ifdef NI_WITHSCOPEID const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID; #else const int niflag = NI_NUMERICHOST; #endif #ifdef INET6 struct in6_ifreq in6_ifr; int s6; #endif /* INET6 */ force = 0; /*fool gcc*/ psrcaddr[0] = pdstaddr[0] = '\0'; #ifdef INET6 bzero(&in6_ifr, sizeof(in6_ifr)); strncpy(in6_ifr.ifr_name, name, IFNAMSIZ); s6 = socket(AF_INET6, SOCK_DGRAM, 0); if (s6 < 0) { ifrp = 𝔦 srccmd = SIOCGIFPSRCADDR; dstcmd = SIOCGIFPDSTADDR; } else { close(s6); srccmd = SIOCGIFPSRCADDR_IN6; dstcmd = SIOCGIFPDSTADDR_IN6; ifrp = (struct ifreq *) &in6_ifr; } #else /* INET6 */ ifrp = 𝔦 srccmd = SIOCGIFPSRCADDR; dstcmd = SIOCGIFPDSTADDR; #endif /* INET6 */ if (0 <= ioctl(s, srccmd, (caddr_t)ifrp)) { #ifdef INET6 if (ifrp->ifr_addr.sa_family == AF_INET6) in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr); #endif getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len, psrcaddr, NI_MAXHOST, 0, 0, niflag); #ifdef INET6 if (ifrp->ifr_addr.sa_family == AF_INET6) ver = "6"; #endif /* INET6 */ if (0 <= ioctl(s, dstcmd, (caddr_t)ifrp)) { #ifdef INET6 if (ifrp->ifr_addr.sa_family == AF_INET6) { in6_fillscopeid((struct sockaddr_in6 *) &ifrp->ifr_addr); } #endif getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len, pdstaddr, NI_MAXHOST, 0, 0, niflag); } printf("\tphysical address inet%s %s --> %s\n", ver, psrcaddr, pdstaddr); } } const int ifm_status_valid_list[] = IFM_STATUS_VALID_LIST; const struct ifmedia_status_description ifm_status_descriptions[] = IFM_STATUS_DESCRIPTIONS; /* * Print the status of the interface. If an address family was * specified, show it and it only; otherwise, show them all. */ void status(link) int link; { register const struct afswtch *p = afp; struct ifmediareq ifmr; int *media_list, i; printf("%s: ", name); printb("flags", flags, IFFBITS); if (metric) printf(" metric %d", metric); if (mtu) printf(" mtu %d", mtu); putchar('\n'); #ifndef INET_ONLY vlan_status(); #endif ieee80211_status(); (void) memset(&ifmr, 0, sizeof(ifmr)); (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { /* * Interface doesn't support SIOC{G,S}IFMEDIA. */ goto proto_status; } if (ifmr.ifm_count == 0) { warnx("%s: no media types?", name); goto proto_status; } media_list = (int *)malloc(ifmr.ifm_count * sizeof(int)); if (media_list == NULL) err(1, "malloc"); ifmr.ifm_ulist = media_list; if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) err(1, "SIOCGIFMEDIA"); printf("\tmedia: "); print_media_word(ifmr.ifm_current, 1, 0); if (ifmr.ifm_active != ifmr.ifm_current) { putchar(' '); putchar('('); print_media_word(ifmr.ifm_active, 0, 0); putchar(')'); } putchar('\n'); if (ifmr.ifm_status & IFM_AVALID) { const struct ifmedia_status_description *ifms; int bitno, found = 0; printf("\tstatus: "); for (bitno = 0; ifm_status_valid_list[bitno] != 0; bitno++) { for (ifms = ifm_status_descriptions; ifms->ifms_valid != 0; ifms++) { if (ifms->ifms_type != IFM_TYPE(ifmr.ifm_current) || ifms->ifms_valid != ifm_status_valid_list[bitno]) continue; printf("%s%s", found ? ", " : "", IFM_STATUS_DESC(ifms, ifmr.ifm_status)); found = 1; /* * For each valid indicator bit, there's * only one entry for each media type, so * terminate the inner loop now. */ break; } } if (found == 0) printf("unknown"); putchar('\n'); } if (mflag) { int type, printed_type = 0; for (type = IFM_NMIN; type <= IFM_NMAX; type += IFM_NMIN) { for (i = 0, printed_type = 0; i < ifmr.ifm_count; i++) { if (IFM_TYPE(media_list[i]) == type) { if (printed_type == 0) { printf("\tsupported media:\n"); printed_type = 1; } printf("\t\t"); print_media_word(media_list[i], 0, 1); printf("\n"); } } } } free(media_list); proto_status: if (link == 0) { if ((p = afp) != NULL) { (*p->af_status)(1); } else for (p = afs; p->af_name; p++) { ifr.ifr_addr.sa_family = p->af_af; (*p->af_status)(0); } } phys_status(0); } void in_status(force) int force; { struct sockaddr_in *sin, sin2; char *inet_ntoa(); getsock(AF_INET); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_addr; /* * We keep the interface address and reset it before each * ioctl() so we can get ifaliases information (as opposed * to the primary interface netmask/dstaddr/broadaddr, if * the ifr_addr field is zero). */ memcpy(&sin2, &ifr.ifr_addr, sizeof(sin2)); printf("\tinet %s ", inet_ntoa(sin->sin_addr)); strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFNETMASK"); memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else netmask.sin_addr = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr; if (flags & IFF_POINTOPOINT) { memcpy(&ifr.ifr_addr, &sin2, sizeof(sin2)); if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_dstaddr; printf("--> %s ", inet_ntoa(sin->sin_addr)); } printf("netmask 0x%x ", ntohl(netmask.sin_addr.s_addr)); if (flags & IFF_BROADCAST) { memcpy(&ifr.ifr_addr, &sin2, sizeof(sin2)); if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFBRDADDR"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sin = (struct sockaddr_in *)&ifr.ifr_addr; if (sin->sin_addr.s_addr != 0) printf("broadcast %s", inet_ntoa(sin->sin_addr)); } putchar('\n'); } void setifprefixlen(addr, d) char *addr; int d; { if (*afp->af_getprefix) (*afp->af_getprefix)(addr, MASK); explicit_prefix = 1; } #ifdef INET6 void in6_fillscopeid(sin6) struct sockaddr_in6 *sin6; { #if defined(__KAME__) && defined(KAME_SCOPEID) if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { sin6->sin6_scope_id = ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]); sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0; } #endif } /* XXX not really an alias */ void in6_alias(creq) struct in6_ifreq *creq; { struct sockaddr_in6 *sin6; struct in6_ifreq ifr6; /* shadows file static variable */ u_int32_t scopeid; char hbuf[NI_MAXHOST]; #ifdef NI_WITHSCOPEID const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID; #else const int niflag = NI_NUMERICHOST; #endif /* Get the non-alias address for this interface. */ getsock(AF_INET6); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } sin6 = (struct sockaddr_in6 *)&creq->ifr_addr; in6_fillscopeid(sin6); scopeid = sin6->sin6_scope_id; if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len, hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) strcpy(hbuf, ""); printf("\tinet6 %s", hbuf); if (flags & IFF_POINTOPOINT) { (void) memset(&ifr6, 0, sizeof(ifr6)); (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); ifr6.ifr_addr = creq->ifr_addr; if (ioctl(s, SIOCGIFDSTADDR_IN6, (caddr_t)&ifr6) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFDSTADDR_IN6"); (void) memset(&ifr6.ifr_addr, 0, sizeof(ifr6.ifr_addr)); ifr6.ifr_addr.sin6_family = AF_INET6; ifr6.ifr_addr.sin6_len = sizeof(struct sockaddr_in6); } sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr; in6_fillscopeid(sin6); if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len, hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) strcpy(hbuf, ""); printf(" -> %s", hbuf); } (void) memset(&ifr6, 0, sizeof(ifr6)); (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); ifr6.ifr_addr = creq->ifr_addr; if (ioctl(s, SIOCGIFNETMASK_IN6, (caddr_t)&ifr6) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFNETMASK_IN6"); } else { sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr; printf(" prefixlen %d", prefix(&sin6->sin6_addr, sizeof(struct in6_addr))); } (void) memset(&ifr6, 0, sizeof(ifr6)); (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); ifr6.ifr_addr = creq->ifr_addr; if (ioctl(s, SIOCGIFAFLAG_IN6, (caddr_t)&ifr6) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFAFLAG_IN6"); } else { if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_ANYCAST) printf(" anycast"); if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_TENTATIVE) printf(" tentative"); if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_DUPLICATED) printf(" duplicated"); if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_DETACHED) printf(" detached"); if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_DEPRECATED) printf(" deprecated"); } if (scopeid) printf(" scopeid 0x%x", scopeid); if (Lflag) { struct in6_addrlifetime *lifetime; (void) memset(&ifr6, 0, sizeof(ifr6)); (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); ifr6.ifr_addr = creq->ifr_addr; lifetime = &ifr6.ifr_ifru.ifru_lifetime; if (ioctl(s, SIOCGIFALIFETIME_IN6, (caddr_t)&ifr6) < 0) { if (errno != EADDRNOTAVAIL) warn("SIOCGIFALIFETIME_IN6"); } else if (lifetime->ia6t_preferred || lifetime->ia6t_expire) { time_t t = time(NULL); printf(" pltime "); if (lifetime->ia6t_preferred) { printf("%s", lifetime->ia6t_preferred < t ? "0" : sec2str(lifetime->ia6t_preferred - t)); } else printf("infty"); printf(" vltime "); if (lifetime->ia6t_expire) { printf("%s", lifetime->ia6t_expire < t ? "0" : sec2str(lifetime->ia6t_expire - t)); } else printf("infty"); } } printf("\n"); } void in6_status(force) int force; { in6_alias((struct in6_ifreq *)&ifr6); } #endif /*INET6*/ #ifndef INET_ONLY void at_status(force) int force; { struct sockaddr_at *sat, null_sat; struct netrange *nr; getsock(AF_APPLETALK); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } (void) memset(&ifr, 0, sizeof(ifr)); (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); sat = (struct sockaddr_at *)&ifr.ifr_addr; (void) memset(&null_sat, 0, sizeof(null_sat)); nr = (struct netrange *) &sat->sat_zero; printf("\tAppleTalk %d.%d range %d-%d phase %d", ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase); if (flags & IFF_POINTOPOINT) { if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sat = (struct sockaddr_at *)&ifr.ifr_dstaddr; if (!sat) sat = &null_sat; printf("--> %d.%d", ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node); } if (flags & IFF_BROADCAST) { /* note RTAX_BRD overlap with IFF_POINTOPOINT */ sat = (struct sockaddr_at *)&ifr.ifr_broadaddr; if (sat) printf(" broadcast %d.%d", ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node); } putchar('\n'); } void xns_status(force) int force; { struct sockaddr_ns *sns; getsock(AF_NS); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); sns = (struct sockaddr_ns *)&ifr.ifr_addr; printf("\tns %s ", ns_ntoa(sns->sns_addr)); if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */ if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr; printf("--> %s ", ns_ntoa(sns->sns_addr)); } putchar('\n'); } void setipxframetype(vname, type) char *vname; int type; { ipx_type = type; } void ipx_status(force) int force; { struct sockaddr_ipx *sipx; getsock(AF_IPX); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); } else warn("SIOCGIFADDR"); } strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); sipx = (struct sockaddr_ipx *)&ifr.ifr_addr; printf("\tipx %s ", ipx_ntoa(sipx->sipx_addr)); if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */ if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); else warn("SIOCGIFDSTADDR"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); sipx = (struct sockaddr_ipx *)&ifr.ifr_dstaddr; printf("--> %s ", ipx_ntoa(sipx->sipx_addr)); } { struct frame_types { int type; char *name; } *p, frames[] = { { ETHERTYPE_8022, "802.2" }, { ETHERTYPE_8022TR, "802.2tr" }, { ETHERTYPE_8023, "802.3" }, { ETHERTYPE_SNAP, "SNAP" }, { ETHERTYPE_II, "EtherII" }, { 0, NULL } }; for (p = frames; p->name && p->type != sipx->sipx_type; p++); if (p->name != NULL) printf("frame %s ", p->name); } putchar('\n'); } void iso_status(force) int force; { struct sockaddr_iso *siso; struct iso_ifreq ifr; getsock(AF_ISO); if (s < 0) { if (errno == EPROTONOSUPPORT) return; err(1, "socket"); } memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFADDR_ISO, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { if (!force) return; memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); } else warn("SIOCGIFADDR_ISO"); } strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); siso = &ifr.ifr_Addr; printf("\tiso %s ", iso_ntoa(&siso->siso_addr)); if (ioctl(s, SIOCGIFNETMASK_ISO, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); else warn("SIOCGIFNETMASK_ISO"); } else { printf(" netmask %s ", iso_ntoa(&siso->siso_addr)); } if (flags & IFF_POINTOPOINT) { if (ioctl(s, SIOCGIFDSTADDR_ISO, (caddr_t)&ifr) < 0) { if (errno == EADDRNOTAVAIL) memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); else warn("SIOCGIFDSTADDR_ISO"); } strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); siso = &ifr.ifr_Addr; printf("--> %s ", iso_ntoa(&siso->siso_addr)); } putchar('\n'); } #endif /* INET_ONLY */ struct in_addr inet_makeaddr(); #define SIN(x) ((struct sockaddr_in *) &(x)) struct sockaddr_in *sintab[] = { SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr), SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)}; void in_getaddr(s, which) char *s; int which; { register struct sockaddr_in *sin = sintab[which]; struct hostent *hp; struct netent *np; sin->sin_len = sizeof(*sin); if (which != MASK) sin->sin_family = AF_INET; if (inet_aton(s, &sin->sin_addr) == 0) { if ((hp = gethostbyname(s))) memcpy(&sin->sin_addr, hp->h_addr, hp->h_length); else if ((np = getnetbyname(s))) sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY); else errx(1, "%s: bad value", s); } } /* * Print a value a la the %b format of the kernel's printf */ void printb(s, v, bits) char *s; register char *bits; register unsigned short v; { register int i, any = 0; register char c; if (bits && *bits == 8) printf("%s=%o", s, v); else printf("%s=%x", s, v); bits++; if (bits) { putchar('<'); while ((i = *bits++)) { if (v & (1 << (i-1))) { if (any) putchar(','); any = 1; for (; (c = *bits) > 32; bits++) putchar(c); } else for (; *bits > 32; bits++) ; } putchar('>'); } } #ifdef INET6 #define SIN6(x) ((struct sockaddr_in6 *) &(x)) struct sockaddr_in6 *sin6tab[] = { SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr), SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)}; void in6_getaddr(s, which) char *s; int which; { #ifndef KAME_SCOPEID struct sockaddr_in6 *sin6 = sin6tab[which]; sin->sin6_len = sizeof(*sin6); if (which != MASK) sin6->sin6_family = AF_INET6; if (inet_pton(AF_INET6, s, &sin6->sin6_addr) != 1) errx(1, "%s: bad value", s); #else struct sockaddr_in6 *sin6 = sin6tab[which]; struct addrinfo hints, *res; int error; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_INET6; hints.ai_socktype = SOCK_DGRAM; /*dummy*/ error = getaddrinfo(s, "0", &hints, &res); if (error) errx(1, "%s: %s", s, gai_strerror(error)); if (res->ai_addrlen != sizeof(struct sockaddr_in6)) errx(1, "%s: bad value", s); memcpy(sin6, res->ai_addr, res->ai_addrlen); #ifdef __KAME__ if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) && *(u_int16_t *)&sin6->sin6_addr.s6_addr[2] == 0 && sin6->sin6_scope_id) { *(u_int16_t *)&sin6->sin6_addr.s6_addr[2] = htons(sin6->sin6_scope_id & 0xffff); sin6->sin6_scope_id = 0; } #endif freeaddrinfo(res); #endif } void in6_getprefix(plen, which) char *plen; int which; { register struct sockaddr_in6 *sin = sin6tab[which]; register u_char *cp; int len = strtol(plen, (char **)NULL, 10); if ((len < 0) || (len > 128)) errx(1, "%s: bad value", plen); sin->sin6_len = sizeof(*sin); if (which != MASK) sin->sin6_family = AF_INET6; if ((len == 0) || (len == 128)) { memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); return; } memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) *cp++ = 0xff; *cp = 0xff << (8 - len); } int prefix(val, size) void *val; int size; { register u_char *name = (u_char *)val; register int byte, bit, plen = 0; for (byte = 0; byte < size; byte++, plen += 8) if (name[byte] != 0xff) break; if (byte == size) return (plen); for (bit = 7; bit != 0; bit--, plen++) if (!(name[byte] & (1 << bit))) break; for (; bit != 0; bit--) if (name[byte] & (1 << bit)) return(0); byte++; for (; byte < size; byte++) if (name[byte]) return(0); return (plen); } #endif /*INET6*/ #ifndef INET_ONLY void at_getaddr(addr, which) char *addr; int which; { struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr; u_int net, node; sat->sat_family = AF_APPLETALK; sat->sat_len = sizeof(*sat); if (which == MASK) errx(1, "AppleTalk does not use netmasks"); if (sscanf(addr, "%u.%u", &net, &node) != 2 || net == 0 || net > 0xffff || node == 0 || node > 0xfe) errx(1, "%s: illegal address", addr); sat->sat_addr.s_net = htons(net); sat->sat_addr.s_node = node; } void setatrange(range, d) char *range; int d; { u_short first = 123, last = 123; if (sscanf(range, "%hu-%hu", &first, &last) != 2 || first == 0 || first > 0xffff || last == 0 || last > 0xffff || first > last) errx(1, "%s: illegal net range: %u-%u", range, first, last); at_nr.nr_firstnet = htons(first); at_nr.nr_lastnet = htons(last); } void setatphase(phase, d) char *phase; int d; { if (!strcmp(phase, "1")) at_nr.nr_phase = 1; else if (!strcmp(phase, "2")) at_nr.nr_phase = 2; else errx(1, "%s: illegal phase", phase); } void checkatrange(sat) struct sockaddr_at *sat; { if (at_nr.nr_phase == 0) at_nr.nr_phase = 2; /* Default phase 2 */ if (at_nr.nr_firstnet == 0) /* Default range of one */ at_nr.nr_firstnet = at_nr.nr_lastnet = sat->sat_addr.s_net; printf("\tatalk %d.%d range %d-%d phase %d\n", ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase); if ((u_short) ntohs(at_nr.nr_firstnet) > (u_short) ntohs(sat->sat_addr.s_net) || (u_short) ntohs(at_nr.nr_lastnet) < (u_short) ntohs(sat->sat_addr.s_net)) errx(1, "AppleTalk address is not in range"); *((struct netrange *) &sat->sat_zero) = at_nr; } #define SNS(x) ((struct sockaddr_ns *) &(x)) struct sockaddr_ns *snstab[] = { SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr), SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)}; void xns_getaddr(addr, which) char *addr; int which; { struct sockaddr_ns *sns = snstab[which]; struct ns_addr ns_addr(); sns->sns_family = AF_NS; sns->sns_len = sizeof(*sns); sns->sns_addr = ns_addr(addr); if (which == MASK) printf("Attempt to set XNS netmask will be ineffectual\n"); } #define SIPX(x) ((struct sockaddr_ipx *) &(x)) struct sockaddr_ipx *sipxtab[] = { SIPX(ridreq.ifr_addr), SIPX(addreq.ifra_addr), SIPX(addreq.ifra_mask), SIPX(addreq.ifra_broadaddr)}; void ipx_getaddr(addr, which) char *addr; int which; { struct sockaddr_ipx *sipx = sipxtab[which]; struct ipx_addr ipx_addr(); sipx->sipx_family = AF_IPX; sipx->sipx_len = sizeof(*sipx); sipx->sipx_addr = ipx_addr(addr); sipx->sipx_type = ipx_type; if (which == MASK) printf("Attempt to set IPX netmask will be ineffectual\n"); } #define SISO(x) ((struct sockaddr_iso *) &(x)) struct sockaddr_iso *sisotab[] = { SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr), SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)}; void iso_getaddr(addr, which) char *addr; int which; { register struct sockaddr_iso *siso = sisotab[which]; struct iso_addr *iso_addr(); siso->siso_addr = *iso_addr(addr); if (which == MASK) { siso->siso_len = TSEL(siso) - (caddr_t)(siso); siso->siso_nlen = 0; } else { siso->siso_len = sizeof(*siso); siso->siso_family = AF_ISO; } } void setsnpaoffset(val) char *val; { iso_addreq.ifra_snpaoffset = atoi(val); } void setnsellength(val) char *val; { nsellength = atoi(val); if (nsellength < 0) errx(1, "negative NSEL length is absurd"); if (afp == 0 || afp->af_af != AF_ISO) errx(1, "setting NSEL length valid only for iso"); } void fixnsel(s) register struct sockaddr_iso *s; { if (s->siso_family == 0) return; s->siso_tlen = nsellength; } void adjust_nsellength() { fixnsel(sisotab[RIDADDR]); fixnsel(sisotab[ADDR]); fixnsel(sisotab[DSTADDR]); } #endif /* INET_ONLY */ void usage() { fprintf(stderr, "usage: ifconfig [ -m ] [ -a ] [ -A ] [ interface ]\n" "\t[ [af] [ address [ dest_addr ] ] [ up ] [ down ] " "[ netmask mask ] ]\n" "\t[media media_type] [mediaopt media_option]\n" "\t[ metric n ]\n" "\t[ mtu n ]\n" "\t[ nwid netword_id ]\n" "\t[ dstsa address/spi/protocol ]\n" "\t[ srcsa address/spi/protocol ]\n" "\t[ clearsa address/spi/protocol ]\n" "\t[ giftunnel srcaddress dstaddress ]\n" "\t[ vlan n vlandev interface ]\n" "\t[ arp | -arp ]\n" "\t[ -802.2 | -802.3 | -802.2tr | -snap | -EtherII ]\n" "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" " ifconfig [-a | -A | -am | -Am] [ af ]\n" " ifconfig -m interface [af]\n"); exit(1); } #ifndef INET_ONLY static int __tag = 0; static int __have_tag = 0; void vlan_status() { struct vlanreq vreq; bzero((char *)&vreq, sizeof(struct vlanreq)); ifr.ifr_data = (caddr_t)&vreq; if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1) return; if (vreq.vlr_tag || (vreq.vlr_parent[0] != '\0')) printf("\tvlan: %d parent interface: %s\n", vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ? "" : vreq.vlr_parent); return; } void setvlantag(val, d) char *val; int d; { u_int16_t tag; struct vlanreq vreq; __tag = tag = atoi(val); __have_tag = 1; bzero((char *)&vreq, sizeof(struct vlanreq)); ifr.ifr_data = (caddr_t)&vreq; if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCGETVLAN"); vreq.vlr_tag = tag; if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCSETVLAN"); return; } void setvlandev(val, d) char *val; int d; { struct vlanreq vreq; if (!__have_tag) errx(1, "must specify both vlan tag and device"); bzero((char *)&vreq, sizeof(struct vlanreq)); ifr.ifr_data = (caddr_t)&vreq; if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCGETVLAN"); strncpy(vreq.vlr_parent, val, sizeof(vreq.vlr_parent)); vreq.vlr_tag = __tag; if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCSETVLAN"); return; } void unsetvlandev(val, d) char *val; int d; { struct vlanreq vreq; bzero((char *)&vreq, sizeof(struct vlanreq)); ifr.ifr_data = (caddr_t)&vreq; if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCGETVLAN"); bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent)); vreq.vlr_tag = 0; if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1) err(1, "SIOCSETVLAN"); return; } #endif /* INET_ONLY */ #ifdef INET6 char * sec2str(total) time_t total; { static char result[256]; int days, hours, mins, secs; int first = 1; char *p = result; char *end = &result[sizeof(result)]; if (0) { /*XXX*/ days = total / 3600 / 24; hours = (total / 3600) % 24; mins = (total / 60) % 60; secs = total % 60; if (days) { first = 0; p += snprintf(p, end - p, "%dd", days); } if (!first || hours) { first = 0; p += snprintf(p, end - p, "%dh", hours); } if (!first || mins) { first = 0; p += snprintf(p, end - p, "%dm", mins); } snprintf(p, end - p, "%ds", secs); } else snprintf(p, end - p, "%lu", (u_long)total); return(result); } #endif