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/* $NetBSD: ophandlers.c,v 1.1 1995/07/13 18:17:28 thorpej Exp $ */
/*
* Copyright (c) 1995 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.
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <string.h>
#include <machine/eeprom.h>
#include <machine/openpromio.h>
#include "defs.h"
extern char *path_openprom;
extern int eval;
extern int verbose;
static char err_str[BUFSIZE];
static void op_notsupp __P((struct extabent *, struct opiocdesc *, char *));
/*
* There are several known fields that I either don't know how to
* deal with or require special treatment.
*/
static struct extabent opextab[] = {
{ "security-password", op_notsupp },
{ "security-mode", op_notsupp },
{ "oem-logo", op_notsupp },
{ NULL, op_notsupp },
};
#define BARF(str1, str2) { \
sprintf(err_str, "%s: %s", (str1), (str2)); \
++eval; \
return (err_str); \
};
char *
op_handler(keyword, arg)
char *keyword, *arg;
{
struct opiocdesc opio;
struct extabent *ex;
char opio_buf[BUFSIZE];
int fd, optnode;
if ((fd = open(path_openprom, arg ? O_RDWR : O_RDONLY, 0640)) < 0)
BARF(path_openprom, strerror(errno));
/* Check to see if it's a special-case keyword. */
for (ex = opextab; ex->ex_keyword != NULL; ++ex)
if (strcmp(ex->ex_keyword, keyword) == 0)
break;
if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0)
BARF("OPIOCGETOPTNODE", strerror(errno));
bzero(&opio_buf[0], sizeof(opio_buf));
bzero(&opio, sizeof(opio));
opio.op_nodeid = optnode;
opio.op_name = keyword;
opio.op_namelen = strlen(opio.op_name);
if (arg) {
if (verbose) {
printf("old: ");
opio.op_buf = &opio_buf[0];
opio.op_buflen = sizeof(opio_buf);
if (ioctl(fd, OPIOCGET, (char *)&opio) < 0)
BARF("OPIOCGET", strerror(errno));
if (opio.op_buflen <= 0) {
printf("nothing available for %s\n");
goto out;
}
if (ex->ex_keyword != NULL)
(*ex->ex_handler)(ex, &opio, NULL);
else
printf("%s\n", opio.op_buf);
}
out:
if (ex->ex_keyword != NULL)
(*ex->ex_handler)(ex, &opio, arg);
else {
opio.op_buf = arg;
opio.op_buflen = strlen(arg);
}
if (ioctl(fd, OPIOCSET, (char *)&opio) < 0)
BARF("invalid keyword", keyword);
if (verbose) {
printf("new: ");
if (ex->ex_keyword != NULL)
(*ex->ex_handler)(ex, &opio, NULL);
else
printf("%s\n", opio.op_buf);
}
} else {
opio.op_buf = &opio_buf[0];
opio.op_buflen = sizeof(opio_buf);
if (ioctl(fd, OPIOCGET, (char *)&opio) < 0)
BARF("OPIOCGET", strerror(errno));
if (opio.op_buflen <= 0) {
sprintf(err_str, "nothing available for %s",
keyword);
return (err_str);
}
if (ex->ex_keyword != NULL)
(*ex->ex_handler)(ex, &opio, NULL);
else
printf("%s=%s\n", keyword, opio.op_buf);
}
(void)close(fd);
return (NULL);
}
/* ARGSUSED */
static void
op_notsupp(exent, opiop, arg)
struct extabent *exent;
struct opiocdesc *opiop;
char *arg;
{
warnx("property `%s' not yet supported", exent->ex_keyword);
}
/*
* XXX: This code is quite ugly. You have been warned.
* (Really! This is the only way I could get it to work!)
*/
void
op_dump()
{
struct opiocdesc opio1, opio2;
struct extabent *ex;
char buf1[BUFSIZE], buf2[BUFSIZE], buf3[BUFSIZE], buf4[BUFSIZE];
int fd, optnode;
if ((fd = open(path_openprom, O_RDONLY, 0640)) < 0)
err(1, "open: %s", path_openprom);
if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0)
err(1, "OPIOCGETOPTNODE");
bzero(&opio1, sizeof(opio1));
/* This will grab the first property name from OPIOCNEXTPROP. */
bzero(buf1, sizeof(buf1));
bzero(buf2, sizeof(buf2));
opio1.op_nodeid = opio2.op_nodeid = optnode;
opio1.op_name = buf1;
opio1.op_buf = buf2;
opio2.op_name = buf3;
opio2.op_buf = buf4;
/*
* For reference: opio1 is for obtaining the name. Pass the
* name of the last property read in op_name, and the next one
* will be returned in op_buf. To get the first name, pass
* an empty string. There are no more properties when an
* empty string is returned.
*
* opio2 is for obtaining the value associated with that name.
* For some crazy reason, it seems as if we need to do all
* of that gratuitious zapping and copying. *sigh*
*/
for (;;) {
opio1.op_namelen = strlen(opio1.op_name);
opio1.op_buflen = sizeof(buf2);
if (ioctl(fd, OPIOCNEXTPROP, (char *)&opio1) < 0)
err(1, "ioctl: OPIOCNEXTPROP");
/*
* The name of the property we wish to get the
* value for has been stored in the value field
* of opio1. If the length of the name is 0, there
* are no more properties left.
*/
sprintf(opio2.op_name, opio1.op_buf);
opio2.op_namelen = strlen(opio2.op_name);
if (opio2.op_namelen == 0) {
(void)close(fd);
return;
}
bzero(opio2.op_buf, sizeof(buf4));
opio2.op_buflen = sizeof(buf4);
if (ioctl(fd, OPIOCGET, (char *)&opio2) < 0)
err(1, "ioctl: OPIOCGET");
for (ex = opextab; ex->ex_keyword != NULL; ++ex)
if (strcmp(ex->ex_keyword, opio2.op_name) == 0)
break;
if (ex->ex_keyword != NULL)
(*ex->ex_handler)(ex, &opio2, NULL);
else
printf("%s=%s\n", opio2.op_name, opio2.op_buf);
/*
* Place the name of the last read value back into
* opio1 so that we may obtain the next name.
*/
bzero(opio1.op_name, sizeof(buf1));
bzero(opio1.op_buf, sizeof(buf2));
sprintf(opio1.op_name, opio2.op_name);
}
/* NOTREACHED */
}
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