264 lines
7.3 KiB
C
264 lines
7.3 KiB
C
/* $NetBSD: ophandlers.c,v 1.5 1997/07/30 22:54:31 jtc Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <machine/eeprom.h>
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#include <machine/openpromio.h>
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#include "defs.h"
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extern char *path_openprom;
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extern int eval;
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extern int verbose;
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static char err_str[BUFSIZE];
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static void op_notsupp __P((struct extabent *, struct opiocdesc *, char *));
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/*
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* There are several known fields that I either don't know how to
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* deal with or require special treatment.
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*/
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static struct extabent opextab[] = {
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{ "security-password", op_notsupp },
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{ "security-mode", op_notsupp },
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{ "oem-logo", op_notsupp },
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{ NULL, op_notsupp },
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};
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#define BARF(str1, str2) { \
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snprintf(err_str, sizeof err_str, "%s: %s", (str1), (str2)); \
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++eval; \
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return (err_str); \
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};
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char *
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op_handler(keyword, arg)
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char *keyword, *arg;
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{
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struct opiocdesc opio;
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struct extabent *ex;
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char opio_buf[BUFSIZE];
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int fd, optnode;
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if ((fd = open(path_openprom, arg ? O_RDWR : O_RDONLY, 0640)) < 0)
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BARF(path_openprom, strerror(errno));
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/* Check to see if it's a special-case keyword. */
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for (ex = opextab; ex->ex_keyword != NULL; ++ex)
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if (strcmp(ex->ex_keyword, keyword) == 0)
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break;
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if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0)
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BARF("OPIOCGETOPTNODE", strerror(errno));
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bzero(&opio_buf[0], sizeof(opio_buf));
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bzero(&opio, sizeof(opio));
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opio.op_nodeid = optnode;
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opio.op_name = keyword;
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opio.op_namelen = strlen(opio.op_name);
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if (arg) {
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if (verbose) {
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printf("old: ");
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opio.op_buf = &opio_buf[0];
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opio.op_buflen = sizeof(opio_buf);
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if (ioctl(fd, OPIOCGET, (char *)&opio) < 0)
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BARF("OPIOCGET", strerror(errno));
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if (opio.op_buflen <= 0) {
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printf("nothing available for %s\n", keyword);
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goto out;
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}
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if (ex->ex_keyword != NULL)
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(*ex->ex_handler)(ex, &opio, NULL);
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else
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printf("%s\n", opio.op_buf);
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}
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out:
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if (ex->ex_keyword != NULL)
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(*ex->ex_handler)(ex, &opio, arg);
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else {
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opio.op_buf = arg;
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opio.op_buflen = strlen(arg);
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}
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if (ioctl(fd, OPIOCSET, (char *)&opio) < 0)
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BARF("invalid keyword", keyword);
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if (verbose) {
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printf("new: ");
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if (ex->ex_keyword != NULL)
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(*ex->ex_handler)(ex, &opio, NULL);
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else
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printf("%s\n", opio.op_buf);
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}
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} else {
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opio.op_buf = &opio_buf[0];
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opio.op_buflen = sizeof(opio_buf);
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if (ioctl(fd, OPIOCGET, (char *)&opio) < 0)
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BARF("OPIOCGET", strerror(errno));
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if (opio.op_buflen <= 0) {
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(void)snprintf(err_str, sizeof err_str,
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"nothing available for %s", keyword);
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return (err_str);
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}
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if (ex->ex_keyword != NULL)
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(*ex->ex_handler)(ex, &opio, NULL);
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else
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printf("%s=%s\n", keyword, opio.op_buf);
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}
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(void)close(fd);
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return (NULL);
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}
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/* ARGSUSED */
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static void
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op_notsupp(exent, opiop, arg)
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struct extabent *exent;
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struct opiocdesc *opiop;
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char *arg;
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{
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warnx("property `%s' not yet supported", exent->ex_keyword);
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}
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/*
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* XXX: This code is quite ugly. You have been warned.
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* (Really! This is the only way I could get it to work!)
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*/
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void
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op_dump()
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{
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struct opiocdesc opio1, opio2;
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struct extabent *ex;
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char buf1[BUFSIZE], buf2[BUFSIZE], buf3[BUFSIZE], buf4[BUFSIZE];
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int fd, optnode;
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if ((fd = open(path_openprom, O_RDONLY, 0640)) < 0)
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err(1, "open: %s", path_openprom);
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if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0)
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err(1, "OPIOCGETOPTNODE");
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bzero(&opio1, sizeof(opio1));
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/* This will grab the first property name from OPIOCNEXTPROP. */
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bzero(buf1, sizeof(buf1));
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bzero(buf2, sizeof(buf2));
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opio1.op_nodeid = opio2.op_nodeid = optnode;
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opio1.op_name = buf1;
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opio1.op_buf = buf2;
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opio2.op_name = buf3;
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opio2.op_buf = buf4;
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/*
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* For reference: opio1 is for obtaining the name. Pass the
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* name of the last property read in op_name, and the next one
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* will be returned in op_buf. To get the first name, pass
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* an empty string. There are no more properties when an
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* empty string is returned.
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*
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* opio2 is for obtaining the value associated with that name.
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* For some crazy reason, it seems as if we need to do all
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* of that gratuitious zapping and copying. *sigh*
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*/
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for (;;) {
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opio1.op_namelen = strlen(opio1.op_name);
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opio1.op_buflen = sizeof(buf2);
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if (ioctl(fd, OPIOCNEXTPROP, (char *)&opio1) < 0)
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err(1, "ioctl: OPIOCNEXTPROP");
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/*
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* The name of the property we wish to get the
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* value for has been stored in the value field
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* of opio1. If the length of the name is 0, there
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* are no more properties left.
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*/
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strcpy(opio2.op_name, opio1.op_buf); /* XXX strcpy is safe */
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opio2.op_namelen = strlen(opio2.op_name);
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if (opio2.op_namelen == 0) {
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(void)close(fd);
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return;
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}
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bzero(opio2.op_buf, sizeof(buf4));
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opio2.op_buflen = sizeof(buf4);
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if (ioctl(fd, OPIOCGET, (char *)&opio2) < 0)
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err(1, "ioctl: OPIOCGET");
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for (ex = opextab; ex->ex_keyword != NULL; ++ex)
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if (strcmp(ex->ex_keyword, opio2.op_name) == 0)
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break;
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if (ex->ex_keyword != NULL)
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(*ex->ex_handler)(ex, &opio2, NULL);
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else
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printf("%s=%s\n", opio2.op_name, opio2.op_buf);
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/*
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* Place the name of the last read value back into
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* opio1 so that we may obtain the next name.
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*/
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bzero(opio1.op_name, sizeof(buf1));
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bzero(opio1.op_buf, sizeof(buf2));
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strcpy(opio1.op_name, opio2.op_name); /* XXX strcpy is safe */
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}
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/* NOTREACHED */
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}
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