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/* $OpenBSD: optree.c,v 1.11 2021/10/24 21:24:18 deraadt Exp $ */
/*
* Copyright (c) 2007 Federico G. Schwindt <fgsch@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for
* any purpose with or without fee is hereby granted, provided that
* the above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
* OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/ioctl.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <machine/openpromio.h>
#include "defs.h"
extern char *path_openprom;
static void
op_print(struct opiocdesc *opio, int depth)
{
char *p;
int i, multi, special;
uint32_t cell;
opio->op_name[opio->op_namelen] = '\0';
printf("%*s%s: ", depth * 4, " ", opio->op_name);
if (opio->op_buflen > 0) {
opio->op_buf[opio->op_buflen] = '\0';
multi = special = 0;
/*
* On macppc we have string-values properties that end
* with multiple NUL characters, and the serial number
* has them embedded within the string.
*/
if (opio->op_buf[0] != '\0') {
for (i = 0; i < opio->op_buflen; i++) {
p = &opio->op_buf[i];
if (*p >= ' ' && *p <= '~')
continue;
if (*p == '\0') {
if (i + 1 < opio->op_buflen)
p++;
if (*p >= ' ' && *p <= '~') {
special = multi;
continue;
}
if (*p == '\0') {
multi = 1;
continue;
}
}
special = 1;
break;
}
} else {
if (opio->op_buflen > 1)
special = 1;
}
if (special && strcmp(opio->op_name, "serial-number") != 0) {
for (i = 0; opio->op_buflen - i >= sizeof(int);
i += sizeof(int)) {
if (i)
printf(".");
cell = *(uint32_t *)&opio->op_buf[i];
printf("%08x", betoh32(cell));
}
if (i < opio->op_buflen) {
if (i)
printf(".");
for (; i < opio->op_buflen; i++) {
printf("%02x",
*(u_char *)&opio->op_buf[i]);
}
}
} else {
for (i = 0; i < opio->op_buflen;
i += strlen(&opio->op_buf[i]) + 1) {
if (i && strlen(&opio->op_buf[i]) == 0)
continue;
if (i)
printf(" + ");
printf("'%s'", &opio->op_buf[i]);
}
}
} else if(opio->op_buflen < 0)
printf("too large");
printf("\n");
}
void
op_nodes(int fd, int node, int depth)
{
char op_buf[BUFSIZE * 8];
char op_name[BUFSIZE];
struct opiocdesc opio;
memset(op_name, 0, sizeof(op_name));
opio.op_nodeid = node;
opio.op_buf = op_buf;
opio.op_name = op_name;
if (!node) {
if (ioctl(fd, OPIOCGETNEXT, &opio) == -1)
err(1, "OPIOCGETNEXT");
node = opio.op_nodeid;
} else
printf("\n%*s", depth * 4, " ");
printf("Node 0x%x\n", node);
for (;;) {
opio.op_buflen = sizeof(op_buf);
opio.op_namelen = sizeof(op_name);
/* Get the next property. */
if (ioctl(fd, OPIOCNEXTPROP, &opio) == -1)
err(1, "OPIOCNEXTPROP");
op_buf[opio.op_buflen] = '\0';
(void)strlcpy(op_name, op_buf, sizeof(op_name));
opio.op_namelen = strlen(op_name);
/* If it's the last, punt. */
if (opio.op_namelen == 0)
break;
bzero(op_buf, sizeof(op_buf));
opio.op_buflen = sizeof(op_buf);
/* And its value. */
if (ioctl(fd, OPIOCGET, &opio) == -1) {
if (errno != ENOMEM)
err(1, "OPIOCGET");
opio.op_buflen = -1; /* for op_print */
}
op_print(&opio, depth + 1);
}
/* Get next child. */
if (ioctl(fd, OPIOCGETCHILD, &opio) == -1)
err(1, "OPIOCGETCHILD");
if (opio.op_nodeid)
op_nodes(fd, opio.op_nodeid, depth + 1);
/* Get next node/sibling. */
opio.op_nodeid = node;
if (ioctl(fd, OPIOCGETNEXT, &opio) == -1)
err(1, "OPIOCGETNEXT");
if (opio.op_nodeid)
op_nodes(fd, opio.op_nodeid, depth);
}
void
op_tree(void)
{
int fd;
if ((fd = open(path_openprom, O_RDONLY)) == -1)
err(1, "open: %s", path_openprom);
op_nodes(fd, 0, 0);
(void)close(fd);
}
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