static void
setifipdst(const char *addr, int dummy __unused, int s,
const struct afswtch *afp)
{
const struct afswtch *inet;
inet = af_getbyname("inet");
if (inet == NULL)
return;
inet->af_getaddr(addr, DSTADDR);
clearaddr = 0;
newaddr = 0;
}
/*
* Print the status of the interface. If an address family was
* specified, show only it; otherwise, show them all.
*/
static void
status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
struct ifaddrs *ifa)
{
struct ifaddrs *ift;
int allfamilies, s;
struct ifstat ifs;
if (afp == NULL) {
allfamilies = 1;
ifr.ifr_addr.sa_family = AF_LOCAL;
} else {
allfamilies = 0;
ifr.ifr_addr.sa_family =
afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
}
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
if (s < 0)
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
printf("%s: ", name);
printb("flags", ifa->ifa_flags, IFFBITS);
if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
printf(" metric %d", ifr.ifr_metric);
if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
printf(" mtu %d", ifr.ifr_mtu);
putchar('\n');
for (;;) {
if ((descr = reallocf(descr, descrlen)) != NULL) {
ifr.ifr_buffer.buffer = descr;
ifr.ifr_buffer.length = descrlen;
if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
if (ifr.ifr_buffer.buffer == descr) {
if (strlen(descr) > 0)
printf("\tdescription: %s\n",
descr);
} else if (ifr.ifr_buffer.length > descrlen) {
descrlen = ifr.ifr_buffer.length;
continue;
}
}
} else
warn("unable to allocate memory for interface"
"description");
break;
}
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
if (ifr.ifr_curcap != 0) {
printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
putchar('\n');
}
if (supmedia && ifr.ifr_reqcap != 0) {
printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
putchar('\n');
}
}
tunnel_status(s);
for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
if (ift->ifa_addr == NULL)
continue;
if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
continue;
if (allfamilies) {
const struct afswtch *p;
p = af_getbyfamily(ift->ifa_addr->sa_family);
if (p != NULL && p->af_status != NULL)
p->af_status(s, ift);
} else if (afp->af_af == ift->ifa_addr->sa_family)
afp->af_status(s, ift);
}
#if 0
if (allfamilies || afp->af_af == AF_LINK) {
const struct afswtch *lafp;
/*
* Hack; the link level address is received separately
* from the routing information so any address is not
* handled above. Cobble together an entry and invoke
* the status method specially.
*/
lafp = af_getbyname("lladdr");
if (lafp != NULL) {
info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
lafp->af_status(s, &info);
}
}
#endif
if (allfamilies)
af_other_status(s);
else if (afp->af_other_status != NULL)
afp->af_other_status(s);
strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
printf("%s", ifs.ascii);
close(s);
return;
}
static int
ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
{
const struct afswtch *afp, *nafp;
const struct cmd *p;
struct callback *cb;
int s;
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
afp = uafp != NULL ? uafp : af_getbyname("inet");
top:
ifr.ifr_addr.sa_family =
afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
AF_LOCAL : afp->af_af;
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
(uafp != NULL || errno != EPROTONOSUPPORT ||
(s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
while (argc > 0) {
p = cmd_lookup(*argv, iscreate);
if (iscreate && p == NULL) {
/*
* Push the clone create callback so the new
* device is created and can be used for any
* remaining arguments.
*/
cb = callbacks;
if (cb == NULL)
errx(1, "internal error, no callback");
callbacks = cb->cb_next;
cb->cb_func(s, cb->cb_arg);
iscreate = 0;
/*
* Handle any address family spec that
* immediately follows and potentially
* recreate the socket.
*/
nafp = af_getbyname(*argv);
if (nafp != NULL) {
argc--, argv++;
if (nafp != afp) {
close(s);
afp = nafp;
goto top;
}
}
/*
* Look for a normal parameter.
*/
continue;
}
if (p == NULL) {
/*
* Not a recognized command, choose between setting
* the interface address and the dst address.
*/
p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
}
if (p->c_u.c_func || p->c_u.c_func2) {
if (p->c_parameter == NEXTARG) {
if (argv[1] == NULL)
errx(1, "'%s' requires argument",
p->c_name);
p->c_u.c_func(argv[1], 0, s, afp);
argc--, argv++;
} else if (p->c_parameter == OPTARG) {
p->c_u.c_func(argv[1], 0, s, afp);
if (argv[1] != NULL)
argc--, argv++;
} else if (p->c_parameter == NEXTARG2) {
if (argc < 3)
errx(1, "'%s' requires 2 arguments",
p->c_name);
p->c_u.c_func2(argv[1], argv[2], s, afp);
argc -= 2, argv += 2;
} else
p->c_u.c_func(*argv, p->c_parameter, s, afp);
}
argc--, argv++;
}
/*
* Do any post argument processing required by the address family.
*/
if (afp->af_postproc != NULL)
afp->af_postproc(s, afp);
/*
* Do deferred callbacks registered while processing
* command-line arguments.
*/
for (cb = callbacks; cb != NULL; cb = cb->cb_next)
cb->cb_func(s, cb->cb_arg);
/*
* Do deferred operations.
*/
if (clearaddr) {
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
clearaddr = 0;
}
}
if (clearaddr) {
int ret;
strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
if (ret < 0) {
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
/* means no previous address for interface */
} else
Perror("ioctl (SIOCDIFADDR)");
}
}
if (newaddr) {
if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
newaddr = 0;
}
}
if (newaddr && (setaddr || setmask)) {
strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
Perror("ioctl (SIOCAIFADDR)");
}
close(s);
return(0);
}
int
main(int argc, char *argv[])
#endif
{
int c, all, namesonly, downonly, uponly;
const struct afswtch *afp = NULL;
int ifindex;
struct ifaddrs *ifap, *ifa;
struct ifreq paifr;
const struct sockaddr_dl *sdl;
char options[1024], *cp;
const char *ifname;
#ifdef __rtems__
struct ifconfig_option *p;
#else
struct option *p;
#endif
size_t iflen;
#ifdef __rtems__
struct getopt_data getopt_reent;
#define optind getopt_reent.optind
#define optarg getopt_reent.optarg
#define opterr getopt_reent.opterr
#define optopt getopt_reent.optopt
#endif
all = downonly = uponly = namesonly = noload = verbose = 0;
/* Parse leading line options */
strlcpy(options, "adklmnuv", sizeof(options));
for (p = opts; p != NULL; p = p->next)
strlcat(options, p->opt, sizeof(options));
#ifdef __rtems__
memset(&getopt_reent, 0, sizeof(getopt_data));
while ((c = getopt_r(argc, argv, options, &getopt_reent)) != -1) {
#else
while ((c = getopt(argc, argv, options)) != -1) {
#endif
switch (c) {
case 'a': /* scan all interfaces */
all++;
break;
case 'd': /* restrict scan to "down" interfaces */
downonly++;
break;
case 'k':
printkeys++;
break;
case 'l': /* scan interface names only */
namesonly++;
break;
case 'm': /* show media choices in status */
supmedia = 1;
break;
case 'n': /* suppress module loading */
noload++;
break;
case 'u': /* restrict scan to "up" interfaces */
uponly++;
break;
case 'v':
verbose++;
break;
default:
for (p = opts; p != NULL; p = p->next)
if (p->opt[0] == c) {
p->cb(optarg);
break;
}
if (p == NULL)
usage();
break;
}
}
argc -= optind;
argv += optind;
/* -l cannot be used with -a or -m */
if (namesonly && (all || supmedia))
usage();
/* nonsense.. */
if (uponly && downonly)
usage();
/* no arguments is equivalent to '-a' */
if (!namesonly && argc < 1)
all = 1;
/* -a and -l allow an address family arg to limit the output */
if (all || namesonly) {
if (argc > 1)
usage();
ifname = NULL;
ifindex = 0;
if (argc == 1) {
afp = af_getbyname(*argv);
if (afp == NULL)
usage();
if (afp->af_name != NULL)
argc--, argv++;
/* leave with afp non-zero */
}
} else {
/* not listing, need an argument */
if (argc < 1)
usage();
ifname = *argv;
argc--, argv++;
/* check and maybe load support for this interface */
ifmaybeload(ifname);
ifindex = if_nametoindex(ifname);
if (ifindex == 0) {
/*
* NOTE: We must special-case the `create' command
* right here as we would otherwise fail when trying
* to find the interface.
*/
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
strcmp(argv[0], "plumb") == 0)) {
iflen = strlcpy(name, ifname, sizeof(name));
if (iflen >= sizeof(name))
errx(1, "%s: cloning name too long",
ifname);
ifconfig(argc, argv, 1, NULL);
exit(0);
}
/*
* NOTE: We have to special-case the `-vnet' command
* right here as we would otherwise fail when trying
* to find the interface as it lives in another vnet.
*/
if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
iflen = strlcpy(name, ifname, sizeof(name));
if (iflen >= sizeof(name))
errx(1, "%s: interface name too long",
ifname);
ifconfig(argc, argv, 0, NULL);
exit(0);
}
errx(1, "interface %s does not exist", ifname);
}
}
/* Check for address family */
if (argc > 0) {
afp = af_getbyname(*argv);
if (afp != NULL)
argc--, argv++;
}
if (getifaddrs(&ifap) != 0)
err(EXIT_FAILURE, "getifaddrs");
cp = NULL;
ifindex = 0;
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
memset(&paifr, 0, sizeof(paifr));
strncpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
memcpy(&paifr.ifr_addr, ifa->ifa_addr,
ifa->ifa_addr->sa_len);
}
if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0)
continue;
if (ifa->ifa_addr->sa_family == AF_LINK)
sdl = (const struct sockaddr_dl *) ifa->ifa_addr;
else
sdl = NULL;
if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0)
continue;
iflen = strlcpy(name, ifa->ifa_name, sizeof(name));
if (iflen >= sizeof(name)) {
warnx("%s: interface name too long, skipping",
ifa->ifa_name);
continue;
}
cp = ifa->ifa_name;
if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
continue;
if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
continue;
ifindex++;
/*
* Are we just listing the interfaces?
*/
if (namesonly) {
if (ifindex > 1)
printf(" ");
fputs(name, stdout);
continue;
}
if (argc > 0)
ifconfig(argc, argv, 0, afp);
else
status(afp, sdl, ifa);
}
if (namesonly)
printf("\n");
freeifaddrs(ifap);
exit(0);
}
static struct afswtch *afs = NULL;
void
af_register(struct afswtch *p)
{
p->af_next = afs;
afs = p;
}
/*
* Print the status of the interface. If an address family was
* specified, show only it; otherwise, show them all.
*/
static void
status(const struct afswtch *afp, int addrcount, struct sockaddr_dl *sdl,
struct if_msghdr *ifm, struct ifa_msghdr *ifam)
{
struct rt_addrinfo info;
int allfamilies, s;
struct ifstat ifs;
if (afp == NULL) {
allfamilies = 1;
afp = af_getbyname("inet");
} else
allfamilies = 0;
ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af;
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
if (s < 0)
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
printf("%s: ", name);
printb("flags", flags, IFFBITS);
if (ifm->ifm_data.ifi_metric)
printf(" metric %ld", ifm->ifm_data.ifi_metric);
if (ifm->ifm_data.ifi_mtu)
printf(" mtu %ld", ifm->ifm_data.ifi_mtu);
putchar('\n');
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
if (ifr.ifr_curcap != 0) {
printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
putchar('\n');
}
if (supmedia && ifr.ifr_reqcap != 0) {
printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
putchar('\n');
}
}
tunnel_status(s);
while (addrcount > 0) {
info.rti_addrs = ifam->ifam_addrs;
/* Expand the compacted addresses */
rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
&info);
if (allfamilies) {
const struct afswtch *p;
p = af_getbyfamily(info.rti_info[RTAX_IFA]->sa_family);
if (p != NULL && p->af_status != NULL)
p->af_status(s, &info);
} else if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family)
afp->af_status(s, &info);
addrcount--;
ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen);
}
if (allfamilies || afp->af_af == AF_LINK) {
const struct afswtch *lafp;
/*
* Hack; the link level address is received separately
* from the routing information so any address is not
* handled above. Cobble together an entry and invoke
* the status method specially.
*/
lafp = af_getbyname("lladdr");
if (lafp != NULL) {
info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
lafp->af_status(s, &info);
}
}
if (allfamilies)
af_other_status(s);
else if (afp->af_other_status != NULL)
afp->af_other_status(s);
strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
printf("%s", ifs.ascii);
if (flags & IFF_POLLING) {
if (ioctl(s, SIOCGIFPOLLCPU, &ifr) == 0 && ifr.ifr_pollcpu >= 0)
printf("\tpollcpu: %d\n", ifr.ifr_pollcpu);
}
close(s);
return;
}
int
main(int argc, char *argv[])
{
int c, all, namesonly, downonly, uponly;
int need_nl = 0, count = 0;
const struct afswtch *afp = NULL;
int addrcount, ifindex;
struct if_msghdr *ifm, *nextifm;
struct ifa_msghdr *ifam;
struct sockaddr_dl *sdl;
char *buf, *lim, *next;
size_t needed;
int mib[6];
char options[1024];
const char *ifname;
struct option *p;
size_t iflen;
all = downonly = uponly = namesonly = verbose = 0;
/* Parse leading line options */
strlcpy(options, "adklmuv", sizeof(options));
for (p = opts; p != NULL; p = p->next)
strlcat(options, p->opt, sizeof(options));
while ((c = getopt(argc, argv, options)) != -1) {
switch (c) {
case 'a': /* scan all interfaces */
all++;
break;
case 'd': /* restrict scan to "down" interfaces */
downonly++;
break;
case 'k':
printkeys++;
break;
case 'l': /* scan interface names only */
namesonly++;
break;
case 'm': /* show media choices in status */
supmedia = 1;
break;
case 'u': /* restrict scan to "up" interfaces */
uponly++;
break;
case 'v':
verbose++;
break;
default:
for (p = opts; p != NULL; p = p->next)
if (p->opt[0] == c) {
p->cb(optarg);
break;
}
if (p == NULL)
usage();
break;
}
}
argc -= optind;
argv += optind;
/* -l cannot be used with -a or -m */
if (namesonly && (all || supmedia))
usage();
/* nonsense.. */
if (uponly && downonly)
usage();
/* no arguments is equivalent to '-a' */
if (!namesonly && argc < 1)
all = 1;
/* -a and -l allow an address family arg to limit the output */
if (all || namesonly) {
if (argc > 1)
usage();
ifname = NULL;
ifindex = 0;
if (argc == 1) {
afp = af_getbyname(*argv);
if (afp == NULL)
usage();
if (afp->af_name != NULL)
argc--, argv++;
/* leave with afp non-zero */
}
} else {
/* not listing, need an argument */
if (argc < 1)
usage();
ifname = *argv;
argc--, argv++;
/* check and maybe load support for this interface */
ifmaybeload(ifname);
ifindex = if_nametoindex(ifname);
if (ifindex == 0) {
/*
* NOTE: We must special-case the `create' command
* right here as we would otherwise fail when trying
* to find the interface.
*/
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
strcmp(argv[0], "plumb") == 0)) {
iflen = strlcpy(name, ifname, sizeof(name));
if (iflen >= sizeof(name))
errx(1, "%s: cloning name too long",
ifname);
ifconfig(argc, argv, 1, NULL);
exit(0);
}
errx(1, "interface %s does not exist", ifname);
}
}
/* Check for address family */
if (argc > 0) {
afp = af_getbyname(*argv);
if (afp != NULL)
argc--, argv++;
}
retry:
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0; /* address family */
mib[4] = NET_RT_IFLIST;
mib[5] = ifindex; /* interface index */
/* if particular family specified, only ask about it */
if (afp != NULL)
mib[3] = afp->af_af;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
errx(1, "iflist-sysctl-estimate");
if ((buf = malloc(needed)) == NULL)
errx(1, "malloc");
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
if (errno == ENOMEM && count++ < 10) {
warnx("Routing table grew, retrying");
free(buf);
sleep(1);
goto retry;
}
errx(1, "actual retrieval of interface table");
}
lim = buf + needed;
next = buf;
while (next < lim) {
int name_len;
ifm = (struct if_msghdr *)next;
if (ifm->ifm_type == RTM_IFINFO) {
#ifdef notyet
if (ifm->ifm_data.ifi_datalen == 0)
ifm->ifm_data.ifi_datalen = sizeof(struct if_data);
sdl = (struct sockaddr_dl *)((char *)ifm + sizeof(struct if_msghdr) -
sizeof(struct if_data) + ifm->ifm_data.ifi_datalen);
#else
sdl = (struct sockaddr_dl *)(ifm + 1);
#endif
flags = ifm->ifm_flags;
} else {
fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n");
fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO,
ifm->ifm_type);
fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen);
fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next,
lim);
exit (1);
}
next += ifm->ifm_msglen;
ifam = NULL;
addrcount = 0;
while (next < lim) {
nextifm = (struct if_msghdr *)next;
if (nextifm->ifm_type != RTM_NEWADDR)
break;
if (ifam == NULL)
ifam = (struct ifa_msghdr *)nextifm;
addrcount++;
next += nextifm->ifm_msglen;
}
if (sizeof(name) <= sdl->sdl_nlen)
name_len = sizeof(name) - 1;
else
name_len = sdl->sdl_nlen;
memcpy(name, sdl->sdl_data, name_len);
name[name_len] = '\0';
if (all || namesonly) {
if (uponly)
if ((flags & IFF_UP) == 0)
continue; /* not up */
if (downonly)
if (flags & IFF_UP)
continue; /* not down */
if (namesonly) {
if (afp == NULL || afp->af_af != AF_LINK ||
sdl->sdl_type == IFT_ETHER) {
if (need_nl)
putchar(' ');
fputs(name, stdout);
need_nl++;
}
continue;
}
}
if (argc > 0)
ifconfig(argc, argv, 0, afp);
else
status(afp, addrcount, sdl, ifm, ifam);
}
free(buf);
if (namesonly && need_nl > 0)
putchar('\n');
if (printname)
printf("%s\n", name);
exit (0);
}
static int
ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
{
const struct afswtch *afp, *nafp;
const struct cmd *p;
struct callback *cb;
int s;
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
afp = NULL;
if (uafp != NULL)
afp = uafp;
/*
* This is the historical "accident" allowing users to configure IPv4
* addresses without the "inet" keyword which while a nice feature has
* proven to complicate other things. We cannot remove this but only
* make sure we will never have a similar implicit default for IPv6 or
* any other address familiy. We need a fallback though for
* ifconfig IF up/down etc. to work without INET support as people
* never used ifconfig IF link up/down, etc. either.
*/
#ifndef RESCUE
#ifdef INET
if (afp == NULL && feature_present("inet"))
afp = af_getbyname("inet");
#endif
#endif
if (afp == NULL)
afp = af_getbyname("link");
if (afp == NULL) {
warnx("Please specify an address_family.");
usage();
}
top:
ifr.ifr_addr.sa_family =
afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
AF_LOCAL : afp->af_af;
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
(uafp != NULL || errno != EPROTONOSUPPORT ||
(s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
while (argc > 0) {
p = cmd_lookup(*argv, iscreate);
if (iscreate && p == NULL) {
/*
* Push the clone create callback so the new
* device is created and can be used for any
* remaining arguments.
*/
cb = callbacks;
if (cb == NULL)
errx(1, "internal error, no callback");
callbacks = cb->cb_next;
cb->cb_func(s, cb->cb_arg);
iscreate = 0;
/*
* Handle any address family spec that
* immediately follows and potentially
* recreate the socket.
*/
nafp = af_getbyname(*argv);
if (nafp != NULL) {
argc--, argv++;
if (nafp != afp) {
close(s);
afp = nafp;
goto top;
}
}
/*
* Look for a normal parameter.
*/
continue;
}
if (p == NULL) {
/*
* Not a recognized command, choose between setting
* the interface address and the dst address.
*/
p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
}
if (p->c_u.c_func || p->c_u.c_func2) {
if (p->c_parameter == NEXTARG) {
if (argv[1] == NULL)
errx(1, "'%s' requires argument",
p->c_name);
p->c_u.c_func(argv[1], 0, s, afp);
argc--, argv++;
} else if (p->c_parameter == OPTARG) {
p->c_u.c_func(argv[1], 0, s, afp);
if (argv[1] != NULL)
argc--, argv++;
} else if (p->c_parameter == NEXTARG2) {
if (argc < 3)
errx(1, "'%s' requires 2 arguments",
p->c_name);
p->c_u.c_func2(argv[1], argv[2], s, afp);
argc -= 2, argv += 2;
} else
p->c_u.c_func(*argv, p->c_parameter, s, afp);
}
argc--, argv++;
}
/*
* Do any post argument processing required by the address family.
*/
if (afp->af_postproc != NULL)
afp->af_postproc(s, afp);
/*
* Do deferred callbacks registered while processing
* command-line arguments.
*/
for (cb = callbacks; cb != NULL; cb = cb->cb_next)
cb->cb_func(s, cb->cb_arg);
/*
* Do deferred operations.
*/
if (clearaddr) {
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
clearaddr = 0;
}
}
if (clearaddr) {
int ret;
strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
if (ret < 0) {
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
/* means no previous address for interface */
} else
Perror("ioctl (SIOCDIFADDR)");
}
}
if (newaddr) {
if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
warnx("interface %s cannot change %s addresses!",
name, afp->af_name);
newaddr = 0;
}
}
if (newaddr && (setaddr || setmask)) {
strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
Perror("ioctl (SIOCAIFADDR)");
}
close(s);
return(0);
}
