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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)eeprom.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
/*
* eeprom - openprom control utility
*
* usage:
*
* eeprom [field] [field=value]
*/
#include <sys/types.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <machine/openpromio.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pathnames.h"
static char openprom[] = _PATH_OPENPROM;
static char usage[] = "usage: %s [field] [field=value]\n";
int
main(argc, argv)
int argc;
char **argv;
{
register char *cp;
register int i, op, fd, flags, status;
register struct opiocdesc *dp;
struct opiocdesc desc;
char buf[1024], buf2[sizeof(buf)];
char *prog, *name;
/* Determine simple program name for error messages */
if (cp = rindex(argv[0], '/'))
prog = cp + 1;
else
prog = argv[0];
/* Parse flags */
opterr = 0;
while ((op = getopt(argc, argv, "")) != EOF)
switch (op) {
default:
(void) fprintf(stderr, usage, prog);
exit(1);
}
argc -= optind;
argv += optind;
/* Determine flags and open device */
flags = O_RDONLY;
for (i = 0; i < argc; ++i)
if (index(argv[i], '=') != NULL) {
flags = O_RDWR;
break;
}
if ((fd = open(openprom, flags, 0)) < 0) {
fprintf(stderr, "%s: open %s: %s\n",
prog, openprom, strerror(errno));
exit(1);
}
dp = &desc;
bzero(dp, sizeof(*dp));
if (ioctl(fd, OPIOCGETOPTNODE, &dp->op_nodeid) < 0) {
fprintf(stderr, "%s: get optionsnode: %s\n",
prog, strerror(errno));
exit(1);
}
if (argc <= 0) {
/* Prime the pump with a zero length name */
dp->op_name = buf;
dp->op_name[0] = '\0';
dp->op_namelen = 0;
dp->op_buf = buf2;
for (;;) {
/* Get the next property name */
dp->op_buflen = sizeof(buf);
if (ioctl(fd, OPIOCNEXTPROP, dp) < 0) {
fprintf(stderr, "%s: get next: %s\n",
prog, strerror(errno));
exit(1);
}
/* Zero length name means we're done */
if (dp->op_buflen <= 0)
break;
/* Clever hack, swap buffers */
cp = dp->op_buf;
dp->op_buf = dp->op_name;
dp->op_name = cp;
dp->op_namelen = dp->op_buflen;
/* Get the value */
dp->op_buflen = sizeof(buf);
if (ioctl(fd, OPIOCGET, dp) < 0) {
fprintf(stderr, "%s: get \"%s\": %s\n",
prog, cp, strerror(errno));
exit(1);
}
printf("%.*s=%.*s\n", dp->op_namelen, dp->op_name,
dp->op_buflen, dp->op_buf);
}
exit(0);
}
status = 0;
for (i = 0; i < argc; ++i) {
dp->op_name = name = argv[i];
cp = index(name, '=');
if (cp) {
*cp++ = '\0';
dp->op_buf = cp;
dp->op_buflen = strlen(dp->op_buf);
} else {
dp->op_buf = buf;
dp->op_buflen = sizeof(buf);
}
dp->op_namelen = strlen(name);
if (ioctl(fd, cp ? OPIOCSET : OPIOCGET, dp) < 0) {
fprintf(stderr, "%s: %s \"%s\": %s\n",
prog, cp ? "set" : "get", name, strerror(errno));
status |= 1;
continue;
}
/* If setting an entry, we're done */
if (cp)
continue;
if (dp->op_buflen < 0) {
fprintf(stderr, "%s: \"%s\" not found\n", prog, name);
status |= 1;
continue;
}
if (dp->op_buflen >= sizeof(buf)) {
fprintf(stderr, "%s: \"%s\" truncated\n", prog, name);
status |= 1;
/* fall thorugh and print truncated value */
}
printf("%s=%.*s\n", name, dp->op_buflen, buf);
}
exit(status);
}
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