251 lines
6.1 KiB
C
251 lines
6.1 KiB
C
/*-
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* Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>.
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/openfirmio.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include <vis.h>
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#include "ofw_util.h"
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/* Constants controlling the layout of the output. */
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#define LVLINDENT 2
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#define NAMEINDENT 2
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#define DUMPINDENT 4
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#define CHARSPERLINE 60
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#define BYTESPERLINE (CHARSPERLINE / 3)
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static void usage(void);
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static void ofw_indent(int);
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static void ofw_dump_properties(int, phandle_t, int, int, int);
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static void ofw_dump_property(int fd, phandle_t n, int level,
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const char *prop, int raw, int str);
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static void ofw_dump(int, const char *, int, int, const char *, int, int);
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static void
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usage(void)
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{
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fprintf(stderr,
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"usage: ofwdump -a [-p | -P property] [-R | -S]\n"
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" ofwdump [-p | -P property] [-r] [-R | -S] [--] nodes\n");
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exit(EX_USAGE);
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}
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int
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main(int argc, char *argv[])
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{
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int opt, i, fd;
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int aflag, pflag, rflag, Rflag, Sflag;
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char *Parg;
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aflag = pflag = rflag = Rflag = Sflag = 0;
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Parg = NULL;
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while ((opt = getopt(argc, argv, "-aprP:RS")) != -1) {
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if (opt == '-')
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break;
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switch (opt) {
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case 'a':
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aflag = 1;
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rflag = 1;
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break;
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case 'p':
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if (Parg != NULL)
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usage();
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pflag = 1;
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break;
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case 'r':
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rflag = 1;
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break;
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case 'P':
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if (pflag)
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usage();
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pflag = 1;
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Parg = optarg;
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break;
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case 'R':
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if (Sflag)
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usage();
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Rflag = 1;
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break;
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case 'S':
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if (Rflag)
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usage();
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Sflag = 1;
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break;
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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fd = ofw_open(O_RDONLY);
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if (aflag) {
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if (argc != 0)
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usage();
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ofw_dump(fd, NULL, rflag, pflag, Parg, Rflag, Sflag);
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} else {
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/*
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* For the sake of scripts, usage() is not called here if
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* argc == 0.
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*/
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for (i = 0; i < argc; i++)
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ofw_dump(fd, argv[i], rflag, pflag, Parg, Rflag, Sflag);
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}
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ofw_close(fd);
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return (EX_OK);
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}
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static void
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ofw_indent(int level)
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{
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int i;
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for (i = 0; i < level; i++)
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putchar(' ');
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}
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static void
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ofw_dump_properties(int fd, phandle_t n, int level, int raw, int str)
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{
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int nlen;
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char prop[32];
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for (nlen = ofw_firstprop(fd, n, prop, sizeof(prop)); nlen != 0;
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nlen = ofw_nextprop(fd, n, prop, prop, sizeof(prop)))
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ofw_dump_property(fd, n, level, prop, raw, str);
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}
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static void
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ofw_dump_property(int fd, phandle_t n, int level, const char *prop, int raw,
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int str)
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{
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static void *pbuf = NULL;
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static char *visbuf = NULL;
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static char printbuf[CHARSPERLINE + 1];
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static int pblen = 0, vblen = 0;
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int len, i, j, max, vlen;
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len = ofw_getprop_alloc(fd, n, prop, &pbuf, &pblen, 1);
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if (len < 0)
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return;
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if (raw)
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write(STDOUT_FILENO, pbuf, len);
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else if (str)
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printf("%.*s\n", len, (char *)pbuf);
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else {
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ofw_indent(level * LVLINDENT + NAMEINDENT);
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printf("%s:\n", prop);
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/* Print in hex. */
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for (i = 0; i < len; i += BYTESPERLINE) {
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max = len - i;
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max = max > BYTESPERLINE ? BYTESPERLINE : max;
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ofw_indent(level * LVLINDENT + DUMPINDENT);
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for (j = 0; j < max; j++)
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printf("%02x ",
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((unsigned char *)pbuf)[i + j]);
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printf("\n");
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}
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/*
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* strvis() and print if it looks like it is
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* zero-terminated.
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*/
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if (((char *)pbuf)[len - 1] == '\0' &&
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strlen(pbuf) == (unsigned)len - 1) {
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if (vblen < (len - 1) * 4 + 1) {
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if (visbuf != NULL)
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free(visbuf);
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vblen = (OFIOCMAXVALUE + len) * 4 + 1;
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if ((visbuf = malloc(vblen)) == NULL)
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err(EX_OSERR,
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"malloc() failed");
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}
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vlen = strvis(visbuf, pbuf, VIS_TAB | VIS_NL);
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for (i = 0; i < vlen; i += CHARSPERLINE) {
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ofw_indent(level * LVLINDENT +
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DUMPINDENT);
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strlcpy(printbuf, &visbuf[i],
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sizeof(printbuf));
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printf("'%s'\n", printbuf);
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}
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}
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}
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}
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static void
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ofw_dump_node(int fd, phandle_t n, int level, int rec, int prop,
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const char *pmatch, int raw, int str)
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{
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static void *nbuf = NULL;
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static int nblen = 0;
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int plen;
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phandle_t c;
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if (!(raw || str)) {
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ofw_indent(level * LVLINDENT);
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printf("Node %#lx", (unsigned long)n);
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plen = ofw_getprop_alloc(fd, n, "name", &nbuf, &nblen, 1);
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if (plen > 0)
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printf(": %.*s\n", (int)plen, (char *)nbuf);
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else
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putchar('\n');
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}
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if (prop) {
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if (pmatch)
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ofw_dump_property(fd, n, level, pmatch, raw, str);
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else
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ofw_dump_properties(fd, n, level, raw, str);
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}
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if (rec) {
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for (c = ofw_child(fd, n); c != 0; c = ofw_peer(fd, c)) {
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ofw_dump_node(fd, c, level + 1, rec, prop, pmatch,
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raw, str);
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}
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}
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}
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static void
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ofw_dump(int fd, const char *start, int rec, int prop, const char *pmatch,
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int raw, int str)
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{
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phandle_t n;
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n = start == NULL ? ofw_root(fd) : ofw_finddevice(fd, start);
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ofw_dump_node(fd, n, 0, rec, prop, pmatch, raw, str);
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}
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