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Another sample devconf application. This one's a menu of devices; read the

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man page.
This commit is contained in:
Garrett Wollman 1995-04-13 21:11:01 +00:00
parent 7ed12e2a4a
commit f34bdd9a32
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7810
6 changed files with 639 additions and 0 deletions
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9
usr.bin/devmenu/Makefile Normal file
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# $Id$
PROG= devmenu
SRCS= devmenu.c devfilter.c ifmenu.c
MAN1= devmenu.1
LDADD+= -ldialog -lncurses
CFLAGS+= -I/sys
.include <bsd.prog.mk>

195
usr.bin/devmenu/devfilter.c Normal file
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/*
* Copyright 1995 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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 <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/devconf.h>
#include <sys/proc.h>
#include <vm/vm.h>
#include <sys/sysctl.h>
#include <err.h>
#include <sysexits.h>
#include "devmenu.h"
char *
devmenu_toname(const struct devconf *dev)
{
static char buf[2*MAXDEVNAME];
snprintf(buf, sizeof buf, "%s%d", dev->dc_name, dev->dc_unit);
return buf;
}
int
devmenu_filter(const struct devconf *dev, char **userlist)
{
int i;
char *name;
if (!userlist)
return 1;
name = devmenu_toname(dev);
for (i = 0; userlist[i]; i++) {
if (strcmp(name, userlist[i]) == 0) {
return 1;
}
}
return 0;
}
struct devconf **
devmenu_alldevs(void)
{
int mib[3];
size_t size;
int ndevs, i, ndx;
struct devconf **rv;
size = sizeof ndevs;
mib[0] = CTL_HW;
mib[1] = HW_DEVCONF;
mib[2] = DEVCONF_NUMBER;
if (sysctl(mib, 3, &ndevs, &size, 0, 0) < 0) {
err(EX_OSERR, "sysctl failed reading hw.devconf.number");
}
rv = malloc((ndevs + 1) * sizeof *rv);
if (!rv) {
err(EX_UNAVAILABLE, "malloc(%lu)",
(unsigned long)(ndevs * sizeof *rv));
}
for (ndx = 0, i = 1; i <= ndevs; i++) {
mib[2] = i;
if (sysctl(mib, 3, 0, &size, 0, 0) < 0) {
continue;
}
rv[ndx] = malloc(size);
if (!rv[ndx]) {
err(EX_UNAVAILABLE, "malloc(%lu)",
(unsigned long)size);
}
if (sysctl(mib, 3, rv[ndx], &size, 0, 0) < 0) {
err(EX_OSERR, "sysctl reading hw.devconf.%d", i);
}
ndx++;
}
rv[ndx] = 0;
return rv;
}
void
devmenu_freedevs(struct devconf ***devpp)
{
struct devconf **devp = *devpp;
int i;
for (i = 0; devp[i]; i++) {
free(devp[i]);
}
free(devp);
*devpp = 0;
}
const char *
devmenu_common(const char *title, const char *hfile, char **devnames,
const char *prompt, const char *none, enum dc_class class)
{
struct devconf **devs;
int s;
unsigned char **items = 0;
int nitems = 0;
int itemindex = 0;
char *name;
int i;
static char resbuf[2*MAXDEVNAME];
if (hfile) {
use_helpfile((char *)hfile);
}
devs = devmenu_alldevs();
for (i = 0; devs[i]; i++) {
if (class && !(devs[i]->dc_class & class))
continue;
if (devmenu_filter(devs[i], devnames)) {
++nitems;
items = realloc(items, 2 * nitems * sizeof *items);
if (!items) {
err(EX_UNAVAILABLE, "malloc(%lu)",
(unsigned long)(2 * nitems * sizeof *items));
}
name = devmenu_toname(devs[i]);
items[itemindex] = strdup(name);
if (!items[itemindex]) {
err(EX_UNAVAILABLE, "strdup-malloc(%lu)",
(unsigned long)(strlen(name) + 1));
}
items[itemindex + 1] = devs[i]->dc_descr;
itemindex += 2;
}
}
if (!nitems) {
dialog_msgbox((char *)title, none, -1, -1, 1);
return "none";
}
name = resbuf;
if(dialog_menu((char *)title, prompt, 24, 78, nitems, nitems, items,
resbuf, 0, 0) != 0) {
name = "none";
}
for (i = 0; i < 2 * nitems; i += 2) {
free(items[i]);
}
free(items);
devmenu_freedevs(&devs);
return name;
}

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usr.bin/devmenu/devmenu.1 Normal file
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.\"
.\" Copyright 1995 Massachusetts Institute of Technology
.\"
.\" Permission to use, copy, modify, and distribute this software and
.\" its documentation for any purpose and without fee is hereby
.\" granted, provided that both the above copyright notice and this
.\" permission notice appear in all copies, that both the above
.\" copyright notice and this permission notice appear in all
.\" supporting documentation, and that the name of M.I.T. not be used
.\" in advertising or publicity pertaining to distribution of the
.\" software without specific, written prior permission. M.I.T. makes
.\" no representations about the suitability of this software for any
.\" purpose. It is provided "as is" without express or implied
.\" warranty.
.\"
.\" THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
.\" ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
.\" SHALL M.I.T. 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.
.\"
.\" $Id$
.Dd April 13, 1995
.Dt DEVMENU 1
.Os FreeBSD 2.1
.Sh NAME
.Nm devmenu
.Nd present a menu of available devices
.Sh SYNOPSIS
.Nm lsdev
.Op Fl c Ar class
.Op Fl f Ar outfile
.Op Fl h Ar helpfile
.Op Fl t Ar title
.Op Fl nid
.Op Ar name ...
.Sh DESCRIPTION
The
.Nm
program uses the
.Xr dialog 3
library to present a menu of available devices meeting some set of
criteria. The list of devices is obtained using the
.Xr sysctl 3
device configuration database
.Pq Dq devconf ,
and intersected with the list of
.Ar name s
if one was specified on the command line. The following command-line
flags are supported:
.Bl -tag -width mhmhelpfile
.It Fl c Ar class
specifies a class of devices to further restrict the available
choices. Multiple
.Fl c
options can be specified, in which case the union of the specified
classes is used. The following classes are currently supported:
.Bl -tag -width parallel
.It Li cpu
a processor
.It Li bus
a system bus, or a peripheral bus
.It Li disk
a read-write disk drive
.It Li rodisk
a read-only disk drive (e.g., CD-ROM)
.It Li display
a display device (usually there is only one)
.It Li serial
a serial port or multiport controller
.It Li parallel
a parallel printer port
.It Li netif
a network interface
.It Li misc
everything else
.El
.Pp
.It Fl f Ar outfile
specifies the name a file where the name of the selected device is
written. If no file is specified, the name is written on the standard
output.
.It Fl h Ar helpfile
can be used to specify the name of a file to be displayed when the
user presses the `?' key.
.It Fl t Ar title
specifies the title of the window passed to the
.Xr dialog 3
library when creating the menu.
.El
.Pp
In addition, there are three flags to request special menus with
unique prompt text and possibly pseudo-devices (but this is not yet
implemented). These are:
.Bl -tag -width xxx
.It Fl n
requests a menu of network interfaces
.It Fl i
requests a menu of possible installation media (i.e., disks, CD-ROMs,
and tapes)
.It Fl d
requests a menu of disks
.El
.Sh SEE ALSO
.Xr sysctl 3 ,
.Xr lsdev 8
.Sh AUTHOR
The
.Nm
program was written by Garrett A. Wollman at the MIT Laboratory for
Computer Science.
.Sh HISTORY
A
.Nm
command first appeared in
.Tn FreeBSD
2.1.

206
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/*
* Copyright 1995 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*/
/*
* devmenu - present a menu of installed devices of a specified
* class or classes
*
* Garrett A. Wollman, April 1995
*/
#ifndef lint
static const char rcsid[] =
"$Id$";
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/devconf.h>
#include <sysexits.h>
#include <err.h>
#include <dialog.h>
#include "devmenu.h"
static enum dc_class interpret_class(char *str);
static void dm_err_exit(int);
static int err_writefn(void *cookie, const char *val, int nchars);
static void usage(const char *);
static FILE *errfp;
int
main(int argc, char **argv)
{
enum dc_class class = 0;
enum mode { GENERIC, NETIF, INSTALL, DISK } mode = GENERIC;
const char *title = 0, *hfile = 0;
char **devnames = 0;
int c;
const char *fn = 0;
const char *sel = "none";
while ((c = getopt(argc, argv, "c:t:h:nidf:")) != EOF) {
switch(c) {
case 'c':
class |= interpret_class(optarg);
break;
case 't':
title = optarg;
break;
case 'h':
hfile = optarg;
break;
case 'n':
mode = NETIF;
break;
case 'i':
mode = INSTALL;
break;
case 'd':
mode = DISK;
break;
case 'f':
fn = optarg;
break;
case '?':
default:
usage(argv[0]);
return EX_USAGE;
}
}
if (optind < argc) {
devnames = &argv[optind];
}
errfp = fwopen(0, err_writefn);
if (!errfp) {
err(EX_UNAVAILABLE, "fwopen");
}
setvbuf(errfp, (char *)0, _IOLBF, (size_t)0);
init_dialog();
err_set_exit(dm_err_exit);
err_set_file(errfp);
switch(mode) {
case NETIF:
sel = devmenu_netif(title, hfile, devnames);
break;
case INSTALL:
sel = devmenu_common(title, hfile, devnames,
"Select an installation device",
"No installation devices found",
DC_CLS_DISK | DC_CLS_RDISK | DC_CLS_TAPE);
break;
case DISK:
sel = devmenu_common(title, hfile, devnames,
"Select a disk",
"No disks found",
DC_CLS_DISK);
break;
case GENERIC:
sel = devmenu_common(title, hfile, devnames,
"Select a device",
"No devices found",
class);
break;
}
err_set_file(0);
fclose(errfp);
end_dialog();
err_set_exit(0);
if (fn) {
errfp = fopen(fn, "w");
if (!errfp) {
err(EX_OSERR, "fopen(%s)", fn);
}
fprintf(errfp, "%s\n", sel);
fclose(errfp);
} else {
printf("%s\n", sel);
}
return 0;
}
static const char *classes[] = DC_CLASSNAMES;
#define NCLASSES ((sizeof classes)/(sizeof classes[0]))
static enum dc_class
interpret_class(char *str)
{
int i;
enum dc_class rv;
for(i = 1; i < NCLASSES; i++) {
if(! strcmp(classes[i], str)) {
rv = (1 << (i - 1));
break;
}
}
if (i == NCLASSES) {
err(EX_USAGE, "unknown class `%s'", str);
}
return rv;
}
static void
dm_err_exit(int rval)
{
fflush(errfp);
fclose(errfp);
end_dialog();
exit(rval);
}
static int
err_writefn(void *cookie, const char *val, int nchars)
{
char buf[nchars + 1];
strncpy(buf, val, nchars);
buf[nchars] = '\0';
dialog_msgbox("Error", buf, -1, -1, 1);
return nchars;
}
static void
usage(const char *argv0)
{
fprintf(stderr, "%s: usage:\n%s foo\n", argv0, argv0);
}

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usr.bin/devmenu/devmenu.h Normal file
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/*
* Copyright 1995 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*
* $Id$
*/
/* NB: must include sys/devconf.h before this file */
/* Args are: title, help file, device name list */
extern const char *devmenu_netif(const char *, const char *, char **);
/* Args are: title, help file, class mask, name list */
extern const char *devmenu(const char *, const char *, enum dc_class, char **);
extern char *devmenu_toname(const struct devconf *);
/* Args are: device, user's list of devices */
extern int devmenu_filter(const struct devconf *, char **);
/* Returns an array of pointers to all the devconf devices in the system */
extern struct devconf **devmenu_alldevs(void);
/* Frees the array allocated above */
extern void devmenu_freedevs(struct devconf ***);
/* Args are: title, help file, name list, prompt, no-devices message, class */
extern const char *devmenu_common(const char *, const char *, char **,
const char *, const char *, enum dc_class);

51
usr.bin/devmenu/ifmenu.c Normal file
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/*
* Copyright 1995 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*/
/*
* ifmenu - present a menu of network interfaces
*
* Garrett A. Wollman, April 1995
*/
#include <sys/types.h>
#include <sys/devconf.h>
#include "devmenu.h"
/*
* This is provided in a separate file so that, in the future, non-physical
* network interfaces might be added as well.
*/
const char *
devmenu_netif(const char *title, const char *hfile, char **devnames)
{
return devmenu_common(title, hfile, devnames,
"Select a network interface",
"No network interfaces available",
DC_CLS_NETIF);
}