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freebsd-skq/sbin/ifconfig/ifmedia.c
Sam Leffler fbc5a4076e 802.11 mode bits are now masks; convert to suit
2004-01-15 15:19:19 +00:00

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/* $NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 1997 Jason R. Thorpe.
* 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 for the NetBSD Project
* by Jason R. Thorpe.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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) 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.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/route.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ifconfig.h"
static void domediaopt(const char *, int, int);
static int get_media_subtype(int, const char *);
static int get_media_mode(int, const char *);
static int get_media_options(int, const char *);
static int lookup_media_word(struct ifmedia_description *, const char *);
static void print_media_word(int, int);
static void print_media_word_ifconfig(int);
static struct ifmedia_description *get_toptype_desc(int);
static struct ifmedia_type_to_subtype *get_toptype_ttos(int);
static struct ifmedia_description *get_subtype_desc(int,
struct ifmedia_type_to_subtype *ttos);
void
media_status(int s, struct rt_addrinfo *info __unused)
{
struct ifmediareq ifmr;
int *media_list, i;
(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.
*/
return;
}
if (ifmr.ifm_count == 0) {
warnx("%s: no media types?", name);
return;
}
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);
if (ifmr.ifm_active != ifmr.ifm_current) {
putchar(' ');
putchar('(');
print_media_word(ifmr.ifm_active, 0);
putchar(')');
}
putchar('\n');
if (ifmr.ifm_status & IFM_AVALID) {
printf("\tstatus: ");
switch (IFM_TYPE(ifmr.ifm_active)) {
case IFM_ETHER:
if (ifmr.ifm_status & IFM_ACTIVE)
printf("active");
else
printf("no carrier");
break;
case IFM_FDDI:
case IFM_TOKEN:
if (ifmr.ifm_status & IFM_ACTIVE)
printf("inserted");
else
printf("no ring");
break;
case IFM_ATM:
if (ifmr.ifm_status & IFM_ACTIVE)
printf("active");
else
printf("no carrier");
break;
case IFM_IEEE80211:
/* XXX: Different value for adhoc? */
if (ifmr.ifm_status & IFM_ACTIVE)
printf("associated");
else
printf("no carrier");
break;
}
putchar('\n');
}
if (ifmr.ifm_count > 0 && supmedia) {
printf("\tsupported media:\n");
for (i = 0; i < ifmr.ifm_count; i++) {
printf("\t\t");
print_media_word_ifconfig(media_list[i]);
putchar('\n');
}
}
free(media_list);
}
void
setmedia(const char *val, int d, int s, const struct afswtch *afp)
{
struct ifmediareq ifmr;
int first_type, subtype;
(void) memset(&ifmr, 0, sizeof(ifmr));
(void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
ifmr.ifm_count = 1;
ifmr.ifm_ulist = &first_type;
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, "SIOCGIFMEDIA");
}
if (ifmr.ifm_count == 0)
errx(1, "%s: no media types?", name);
/*
* We are primarily concerned with the top-level type.
* However, "current" may be only IFM_NONE, so we just look
* for the top-level type in the first "supported type"
* entry.
*
* (I'm assuming that all supported media types for a given
* interface will be the same top-level type..)
*/
subtype = get_media_subtype(IFM_TYPE(first_type), val);
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_media = (ifmr.ifm_current & ~(IFM_NMASK|IFM_TMASK)) |
IFM_TYPE(first_type) | subtype;
if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
err(1, "SIOCSIFMEDIA (media)");
}
void
setmediaopt(const char *val, int d, int s, const struct afswtch *afp)
{
domediaopt(val, 0, s);
}
void
unsetmediaopt(const char *val, int d, int s, const struct afswtch *afp)
{
domediaopt(val, 1, s);
}
static void
domediaopt(const char *val, int clear, int s)
{
struct ifmediareq ifmr;
int *mwords, options;
(void) memset(&ifmr, 0, sizeof(ifmr));
(void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
/*
* We must go through the motions of reading all
* supported media because we need to know both
* the current media type and the top-level type.
*/
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
if (ifmr.ifm_count == 0)
errx(1, "%s: no media types?", name);
mwords = (int *)malloc(ifmr.ifm_count * sizeof(int));
if (mwords == NULL)
err(1, "malloc");
ifmr.ifm_ulist = mwords;
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
options = get_media_options(IFM_TYPE(mwords[0]), val);
free(mwords);
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_media = ifmr.ifm_current;
if (clear)
ifr.ifr_media &= ~options;
else
ifr.ifr_media |= options;
if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
err(1, "SIOCSIFMEDIA (mediaopt)");
}
void
setmediamode(const char *val, int d, int s, const struct afswtch *afp)
{
struct ifmediareq ifmr;
int *mwords, mode;
(void) memset(&ifmr, 0, sizeof(ifmr));
(void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
/*
* We must go through the motions of reading all
* supported media because we need to know both
* the current media type and the top-level type.
*/
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
if (ifmr.ifm_count == 0)
errx(1, "%s: no media types?", name);
mwords = (int *)malloc(ifmr.ifm_count * sizeof(int));
if (mwords == NULL)
err(1, "malloc");
ifmr.ifm_ulist = mwords;
if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
err(1, "SIOCGIFMEDIA");
mode = get_media_mode(IFM_TYPE(mwords[0]), val);
free(mwords);
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_media = (ifmr.ifm_current & ~IFM_MMASK) | mode;
if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
err(1, "SIOCSIFMEDIA (mode)");
}
/**********************************************************************
* A good chunk of this is duplicated from sys/net/ifmedia.c
**********************************************************************/
static struct ifmedia_description ifm_type_descriptions[] =
IFM_TYPE_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ethernet_aliases[] =
IFM_SUBTYPE_ETHERNET_ALIASES;
static struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_tokenring_descriptions[] =
IFM_SUBTYPE_TOKENRING_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_tokenring_aliases[] =
IFM_SUBTYPE_TOKENRING_ALIASES;
static struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] =
IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_fddi_descriptions[] =
IFM_SUBTYPE_FDDI_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_fddi_aliases[] =
IFM_SUBTYPE_FDDI_ALIASES;
static struct ifmedia_description ifm_subtype_fddi_option_descriptions[] =
IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_descriptions[] =
IFM_SUBTYPE_IEEE80211_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_aliases[] =
IFM_SUBTYPE_IEEE80211_ALIASES;
static struct ifmedia_description ifm_subtype_ieee80211_option_descriptions[] =
IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_ieee80211_mode_descriptions[] =
IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS;
struct ifmedia_description ifm_subtype_ieee80211_mode_aliases[] =
IFM_SUBTYPE_IEEE80211_MODE_ALIASES;
static struct ifmedia_description ifm_subtype_atm_descriptions[] =
IFM_SUBTYPE_ATM_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_atm_aliases[] =
IFM_SUBTYPE_ATM_ALIASES;
static struct ifmedia_description ifm_subtype_atm_option_descriptions[] =
IFM_SUBTYPE_ATM_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_shared_descriptions[] =
IFM_SUBTYPE_SHARED_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_shared_aliases[] =
IFM_SUBTYPE_SHARED_ALIASES;
static struct ifmedia_description ifm_shared_option_descriptions[] =
IFM_SHARED_OPTION_DESCRIPTIONS;
struct ifmedia_type_to_subtype {
struct {
struct ifmedia_description *desc;
int alias;
} subtypes[5];
struct {
struct ifmedia_description *desc;
int alias;
} options[3];
struct {
struct ifmedia_description *desc;
int alias;
} modes[3];
};
/* must be in the same order as IFM_TYPE_DESCRIPTIONS */
static struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] = {
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_ethernet_descriptions[0], 0 },
{ &ifm_subtype_ethernet_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_ethernet_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_tokenring_descriptions[0], 0 },
{ &ifm_subtype_tokenring_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_tokenring_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_fddi_descriptions[0], 0 },
{ &ifm_subtype_fddi_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_fddi_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_ieee80211_descriptions[0], 0 },
{ &ifm_subtype_ieee80211_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_ieee80211_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ &ifm_subtype_ieee80211_mode_descriptions[0], 0 },
{ &ifm_subtype_ieee80211_mode_aliases[0], 0 },
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_atm_descriptions[0], 0 },
{ &ifm_subtype_atm_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_subtype_atm_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
};
static int
get_media_subtype(int type, const char *val)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int rval, i;
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (type == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL)
errx(1, "unknown media type 0x%x", type);
for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
rval = lookup_media_word(ttos->subtypes[i].desc, val);
if (rval != -1)
return (rval);
}
errx(1, "unknown media subtype: %s", val);
/*NOTREACHED*/
}
static int
get_media_mode(int type, const char *val)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int rval, i;
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (type == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL)
errx(1, "unknown media mode 0x%x", type);
for (i = 0; ttos->modes[i].desc != NULL; i++) {
rval = lookup_media_word(ttos->modes[i].desc, val);
if (rval != -1)
return (rval);
}
return -1;
}
static int
get_media_options(int type, const char *val)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
char *optlist, *optptr;
int option = 0, i, rval = 0;
/* We muck with the string, so copy it. */
optlist = strdup(val);
if (optlist == NULL)
err(1, "strdup");
/* Find the top-level interface type. */
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (type == desc->ifmt_word)
break;
if (desc->ifmt_string == NULL)
errx(1, "unknown media type 0x%x", type);
/*
* Look up the options in the user-provided comma-separated
* list.
*/
optptr = optlist;
for (; (optptr = strtok(optptr, ",")) != NULL; optptr = NULL) {
for (i = 0; ttos->options[i].desc != NULL; i++) {
option = lookup_media_word(ttos->options[i].desc, optptr);
if (option != -1)
break;
}
if (option == 0)
errx(1, "unknown option: %s", optptr);
rval |= option;
}
free(optlist);
return (rval);
}
static int
lookup_media_word(struct ifmedia_description *desc, const char *val)
{
for (; desc->ifmt_string != NULL; desc++)
if (strcasecmp(desc->ifmt_string, val) == 0)
return (desc->ifmt_word);
return (-1);
}
static struct ifmedia_description *get_toptype_desc(int ifmw)
{
struct ifmedia_description *desc;
for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++)
if (IFM_TYPE(ifmw) == desc->ifmt_word)
break;
return desc;
}
static struct ifmedia_type_to_subtype *get_toptype_ttos(int ifmw)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++)
if (IFM_TYPE(ifmw) == desc->ifmt_word)
break;
return ttos;
}
static struct ifmedia_description *get_subtype_desc(int ifmw,
struct ifmedia_type_to_subtype *ttos)
{
int i;
struct ifmedia_description *desc;
for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
if (ttos->subtypes[i].alias)
continue;
for (desc = ttos->subtypes[i].desc;
desc->ifmt_string != NULL; desc++) {
if (IFM_SUBTYPE(ifmw) == desc->ifmt_word)
return desc;
}
}
return NULL;
}
static struct ifmedia_description *get_mode_desc(int ifmw,
struct ifmedia_type_to_subtype *ttos)
{
int i;
struct ifmedia_description *desc;
for (i = 0; ttos->modes[i].desc != NULL; i++) {
if (ttos->modes[i].alias)
continue;
for (desc = ttos->modes[i].desc;
desc->ifmt_string != NULL; desc++) {
if (IFM_MODE(ifmw) == desc->ifmt_word)
return desc;
}
}
return NULL;
}
static void
print_media_word(int ifmw, int print_toptype)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int seen_option = 0, i;
/* Find the top-level interface type. */
desc = get_toptype_desc(ifmw);
ttos = get_toptype_ttos(ifmw);
if (desc->ifmt_string == NULL) {
printf("<unknown type>");
return;
} else if (print_toptype) {
printf("%s", desc->ifmt_string);
}
/*
* Don't print the top-level type; it's not like we can
* change it, or anything.
*/
/* Find subtype. */
desc = get_subtype_desc(ifmw, ttos);
if (desc != NULL)
goto got_subtype;
/* Falling to here means unknown subtype. */
printf("<unknown subtype>");
return;
got_subtype:
if (print_toptype)
putchar(' ');
printf("%s", desc->ifmt_string);
if (print_toptype) {
desc = get_mode_desc(ifmw, ttos);
if (desc != NULL && strcasecmp("autoselect", desc->ifmt_string))
printf(" mode %s", desc->ifmt_string);
}
/* Find options. */
for (i = 0; ttos->options[i].desc != NULL; i++) {
if (ttos->options[i].alias)
continue;
for (desc = ttos->options[i].desc;
desc->ifmt_string != NULL; desc++) {
if (ifmw & desc->ifmt_word) {
if (seen_option == 0)
printf(" <");
printf("%s%s", seen_option++ ? "," : "",
desc->ifmt_string);
}
}
}
printf("%s", seen_option ? ">" : "");
}
static void
print_media_word_ifconfig(int ifmw)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
int i;
/* Find the top-level interface type. */
desc = get_toptype_desc(ifmw);
ttos = get_toptype_ttos(ifmw);
if (desc->ifmt_string == NULL) {
printf("<unknown type>");
return;
}
/*
* Don't print the top-level type; it's not like we can
* change it, or anything.
*/
/* Find subtype. */
desc = get_subtype_desc(ifmw, ttos);
if (desc != NULL)
goto got_subtype;
/* Falling to here means unknown subtype. */
printf("<unknown subtype>");
return;
got_subtype:
printf("media %s", desc->ifmt_string);
desc = get_mode_desc(ifmw, ttos);
if (desc != NULL)
printf(" mode %s", desc->ifmt_string);
/* Find options. */
for (i = 0; ttos->options[i].desc != NULL; i++) {
if (ttos->options[i].alias)
continue;
for (desc = ttos->options[i].desc;
desc->ifmt_string != NULL; desc++) {
if (ifmw & desc->ifmt_word) {
printf(" mediaopt %s", desc->ifmt_string);
}
}
}
}
/**********************************************************************
* ...until here.
**********************************************************************/
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