872b698bd4
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
438 lines
10 KiB
C
438 lines
10 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 Peter Wemm
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mkheaders.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/*
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* Make all the .h files for the optional entries
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*/
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/param.h>
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#include "config.h"
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#include "y.tab.h"
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static struct users {
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int u_default;
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int u_min;
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int u_max;
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} users = { 8, 2, 512 };
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static char *lower(char *);
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static void read_options(void);
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static void do_option(char *);
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static char *tooption(char *);
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void
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options(void)
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{
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char buf[40];
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struct cputype *cp;
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struct opt_list *ol;
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struct opt *op;
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/* Fake the cpu types as options. */
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SLIST_FOREACH(cp, &cputype, cpu_next) {
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op = (struct opt *)calloc(1, sizeof(*op));
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if (op == NULL)
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err(EXIT_FAILURE, "calloc");
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op->op_name = ns(cp->cpu_name);
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SLIST_INSERT_HEAD(&opt, op, op_next);
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}
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if (maxusers == 0) {
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/* fprintf(stderr, "maxusers not specified; will auto-size\n"); */
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} else if (maxusers < users.u_min) {
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fprintf(stderr, "minimum of %d maxusers assumed\n",
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users.u_min);
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maxusers = users.u_min;
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} else if (maxusers > users.u_max)
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fprintf(stderr, "warning: maxusers > %d (%d)\n",
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users.u_max, maxusers);
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/* Fake MAXUSERS as an option. */
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op = (struct opt *)calloc(1, sizeof(*op));
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if (op == NULL)
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err(EXIT_FAILURE, "calloc");
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op->op_name = ns("MAXUSERS");
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snprintf(buf, sizeof(buf), "%d", maxusers);
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op->op_value = ns(buf);
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SLIST_INSERT_HEAD(&opt, op, op_next);
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read_options();
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/* Fake the value of MACHINE_ARCH as an option if necessary */
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SLIST_FOREACH(ol, &otab, o_next) {
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if (strcasecmp(ol->o_name, machinearch) != 0)
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continue;
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op = (struct opt *)calloc(1, sizeof(*op));
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if (op == NULL)
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err(EXIT_FAILURE, "calloc");
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op->op_name = ns(ol->o_name);
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SLIST_INSERT_HEAD(&opt, op, op_next);
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break;
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}
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SLIST_FOREACH(op, &opt, op_next) {
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SLIST_FOREACH(ol, &otab, o_next) {
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if (eq(op->op_name, ol->o_name) &&
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(ol->o_flags & OL_ALIAS)) {
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fprintf(stderr, "Mapping option %s to %s.\n",
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op->op_name, ol->o_file);
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op->op_name = ol->o_file;
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break;
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}
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}
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}
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SLIST_FOREACH(ol, &otab, o_next)
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do_option(ol->o_name);
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SLIST_FOREACH(op, &opt, op_next) {
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if (!op->op_ownfile && strncmp(op->op_name, "DEV_", 4)) {
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fprintf(stderr, "%s: unknown option \"%s\"\n",
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PREFIX, op->op_name);
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exit(1);
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}
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}
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}
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/*
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* Generate an <options>.h file
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*/
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static void
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do_option(char *name)
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{
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char *file, *inw;
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const char *basefile;
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struct opt_list *ol;
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struct opt *op;
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struct opt_head op_head;
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FILE *inf, *outf;
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char *value;
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char *oldvalue;
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int seen;
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int tidy;
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file = tooption(name);
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/*
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* Check to see if the option was specified..
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*/
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value = NULL;
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SLIST_FOREACH(op, &opt, op_next) {
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if (eq(name, op->op_name)) {
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oldvalue = value;
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value = op->op_value;
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if (value == NULL)
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value = ns("1");
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if (oldvalue != NULL && !eq(value, oldvalue))
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fprintf(stderr,
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"%s: option \"%s\" redefined from %s to %s\n",
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PREFIX, op->op_name, oldvalue,
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value);
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op->op_ownfile++;
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}
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}
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remember(file);
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inf = fopen(file, "r");
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if (inf == NULL) {
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outf = fopen(file, "w");
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if (outf == NULL)
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err(1, "%s", file);
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/* was the option in the config file? */
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if (value) {
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fprintf(outf, "#define %s %s\n", name, value);
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} /* else empty file */
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(void)fclose(outf);
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return;
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}
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basefile = "";
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SLIST_FOREACH(ol, &otab, o_next)
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if (eq(name, ol->o_name)) {
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basefile = ol->o_file;
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break;
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}
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oldvalue = NULL;
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SLIST_INIT(&op_head);
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seen = 0;
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tidy = 0;
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for (;;) {
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char *cp;
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char *invalue;
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/* get the #define */
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if ((inw = get_word(inf)) == NULL || inw == (char *)EOF)
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break;
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/* get the option name */
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if ((inw = get_word(inf)) == NULL || inw == (char *)EOF)
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break;
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inw = ns(inw);
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/* get the option value */
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if ((cp = get_word(inf)) == NULL || cp == (char *)EOF)
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break;
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/* option value */
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invalue = ns(cp); /* malloced */
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if (eq(inw, name)) {
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oldvalue = invalue;
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invalue = value;
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seen++;
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}
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SLIST_FOREACH(ol, &otab, o_next)
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if (eq(inw, ol->o_name))
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break;
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if (!eq(inw, name) && !ol) {
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fprintf(stderr,
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"WARNING: unknown option `%s' removed from %s\n",
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inw, file);
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tidy++;
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} else if (ol != NULL && !eq(basefile, ol->o_file)) {
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fprintf(stderr,
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"WARNING: option `%s' moved from %s to %s\n",
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inw, basefile, ol->o_file);
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tidy++;
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} else {
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op = (struct opt *) calloc(1, sizeof *op);
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if (op == NULL)
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err(EXIT_FAILURE, "calloc");
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op->op_name = inw;
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op->op_value = invalue;
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SLIST_INSERT_HEAD(&op_head, op, op_next);
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}
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/* EOL? */
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cp = get_word(inf);
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if (cp == (char *)EOF)
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break;
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}
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(void)fclose(inf);
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if (!tidy && ((value == NULL && oldvalue == NULL) ||
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(value && oldvalue && eq(value, oldvalue)))) {
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while (!SLIST_EMPTY(&op_head)) {
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op = SLIST_FIRST(&op_head);
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SLIST_REMOVE_HEAD(&op_head, op_next);
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free(op->op_name);
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free(op->op_value);
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free(op);
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}
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return;
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}
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if (value && !seen) {
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/* New option appears */
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op = (struct opt *) calloc(1, sizeof *op);
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if (op == NULL)
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err(EXIT_FAILURE, "calloc");
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op->op_name = ns(name);
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op->op_value = value ? ns(value) : NULL;
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SLIST_INSERT_HEAD(&op_head, op, op_next);
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}
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outf = fopen(file, "w");
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if (outf == NULL)
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err(1, "%s", file);
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while (!SLIST_EMPTY(&op_head)) {
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op = SLIST_FIRST(&op_head);
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/* was the option in the config file? */
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if (op->op_value) {
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fprintf(outf, "#define %s %s\n",
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op->op_name, op->op_value);
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}
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SLIST_REMOVE_HEAD(&op_head, op_next);
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free(op->op_name);
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free(op->op_value);
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free(op);
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}
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(void)fclose(outf);
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}
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/*
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* Find the filename to store the option spec into.
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*/
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static char *
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tooption(char *name)
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{
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static char hbuf[MAXPATHLEN];
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char nbuf[MAXPATHLEN];
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struct opt_list *po;
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/* "cannot happen"? the otab list should be complete.. */
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(void)strlcpy(nbuf, "options.h", sizeof(nbuf));
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SLIST_FOREACH(po, &otab, o_next) {
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if (eq(po->o_name, name)) {
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strlcpy(nbuf, po->o_file, sizeof(nbuf));
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break;
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}
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}
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(void)strlcpy(hbuf, path(nbuf), sizeof(hbuf));
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return (hbuf);
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}
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static void
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check_duplicate(const char *fname, const char *this)
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{
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struct opt_list *po;
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SLIST_FOREACH(po, &otab, o_next) {
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if (eq(po->o_name, this)) {
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fprintf(stderr, "%s: Duplicate option %s.\n",
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fname, this);
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exit(1);
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}
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}
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}
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static void
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insert_option(const char *fname, char *this, char *val)
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{
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struct opt_list *po;
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check_duplicate(fname, this);
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po = (struct opt_list *) calloc(1, sizeof *po);
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if (po == NULL)
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err(EXIT_FAILURE, "calloc");
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po->o_name = this;
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po->o_file = val;
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po->o_flags = 0;
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SLIST_INSERT_HEAD(&otab, po, o_next);
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}
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static void
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update_option(const char *this, char *val, int flags)
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{
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struct opt_list *po;
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SLIST_FOREACH(po, &otab, o_next) {
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if (eq(po->o_name, this)) {
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free(po->o_file);
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po->o_file = val;
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po->o_flags = flags;
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return;
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}
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}
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/*
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* Option not found, but that's OK, we just ignore it since it
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* may be for another arch.
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*/
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return;
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}
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static int
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read_option_file(const char *fname, int flags)
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{
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FILE *fp;
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char *wd, *this, *val;
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char genopt[MAXPATHLEN];
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fp = fopen(fname, "r");
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if (fp == NULL)
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return (0);
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while ((wd = get_word(fp)) != (char *)EOF) {
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if (wd == NULL)
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continue;
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if (wd[0] == '#') {
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while (((wd = get_word(fp)) != (char *)EOF) && wd)
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continue;
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continue;
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}
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this = ns(wd);
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val = get_word(fp);
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if (val == (char *)EOF)
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return (1);
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if (val == NULL) {
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if (flags) {
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fprintf(stderr, "%s: compat file requires two"
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" words per line at %s\n", fname, this);
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exit(1);
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}
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char *s = ns(this);
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(void)snprintf(genopt, sizeof(genopt), "opt_%s.h",
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lower(s));
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val = genopt;
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free(s);
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}
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val = ns(val);
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if (flags == 0)
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insert_option(fname, this, val);
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else
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update_option(this, val, flags);
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}
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(void)fclose(fp);
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return (1);
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}
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/*
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* read the options and options.<machine> files
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*/
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static void
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read_options(void)
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{
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char fname[MAXPATHLEN];
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SLIST_INIT(&otab);
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read_option_file("../../conf/options", 0);
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(void)snprintf(fname, sizeof fname, "../../conf/options.%s",
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machinename);
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if (!read_option_file(fname, 0)) {
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(void)snprintf(fname, sizeof fname, "options.%s", machinename);
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read_option_file(fname, 0);
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}
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read_option_file("../../conf/options-compat", OL_ALIAS);
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}
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static char *
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lower(char *str)
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{
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char *cp = str;
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while (*str) {
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if (isupper(*str))
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*str = tolower(*str);
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str++;
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}
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return (cp);
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}
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