NetBSD/usr.sbin/config.old/mkheaders.c

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/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.
*
* 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
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/*static char sccsid[] = "from: @(#)mkheaders.c 5.7 (Berkeley) 7/1/91";*/
static char rcsid[] = "$Id: mkheaders.c,v 1.6 1994/03/10 19:50:45 mycroft Exp $";
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#endif /* not lint */
/*
* Make all the .h files for the optional entries
*/
#include <stdio.h>
#include <ctype.h>
#include "config.h"
#include "y.tab.h"
#include "specfile.h"
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headers()
{
register struct file_list *fl;
for (fl = ftab; fl != 0; fl = fl->f_next)
if (fl->f_was_driver)
do_identifiers(fl->f_needs);
else if (fl->f_needs_count)
do_identifiers(fl->f_countname);
}
do_identifiers(expr)
register struct name_expr *expr;
{
if (expr->left)
do_identifiers(expr->left);
if (expr->type == T_IDENTIFIER)
do_count(expr->name, expr->name, 1);
if (expr->right)
do_identifiers(expr->right);
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}
/*
* count all the devices of a certain type and recurse to count
* whatever the device is connected to
*/
do_count(dev, hname, search)
register char *dev, *hname;
int search;
{
register struct device *dp, *mp;
register int count;
for (count = 0,dp = dtab; dp != 0; dp = dp->d_next)
if (dp->d_unit != -1 && eq(dp->d_name, dev)) {
if (dp->d_type == PSEUDO_DEVICE) {
count =
dp->d_slave != UNKNOWN ? dp->d_slave : 1;
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if (dp->d_flags)
dev = NULL;
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break;
}
count++;
/*
* Allow holes in unit numbering,
* assumption is unit numbering starts
* at zero.
*/
if (dp->d_unit + 1 > count)
count = dp->d_unit + 1;
if (search) {
mp = dp->d_conn;
if (mp != 0 && mp != TO_NEXUS &&
mp->d_conn != 0 && mp->d_conn != TO_NEXUS) {
do_count(mp->d_name, hname, 0);
search = 0;
}
}
}
do_header(dev, hname, count);
}
do_header(dev, hname, count)
char *dev, *hname;
int count;
{
char *file, *name, *inw, *toheader(), *tomacro(), *get_rword();
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struct file_list *fl, *fl_head;
FILE *inf, *outf;
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int inc = 0, oldcount;
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file = toheader(hname);
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name = tomacro(dev?dev:hname) + (dev == NULL);
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inf = fopen(file, "r");
oldcount = -1;
if (inf == 0) {
outf = fopen(file, "w");
if (outf == 0) {
perror(file);
exit(1);
}
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if (dev || (!dev && count))
fprintf(outf, "#define %s %d\n", name, count);
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(void) fclose(outf);
return;
}
fl_head = 0;
for (;;) {
char *cp;
if ((inw = get_rword(inf)) == 0 || inw == (char *)EOF)
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break;
if ((inw = get_rword(inf)) == 0 || inw == (char *)EOF)
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break;
inw = ns(inw);
cp = get_rword(inf);
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if (cp == 0 || cp == (char *)EOF)
break;
inc = atoi(cp);
if (eq(inw, name)) {
oldcount = inc;
inc = count;
}
cp = get_rword(inf);
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if (cp == (char *)EOF)
break;
fl = (struct file_list *) malloc(sizeof *fl);
bzero(fl, sizeof(*fl));
fl->f_fn = inw;
fl->f_type = inc;
fl->f_next = fl_head;
fl_head = fl;
}
(void) fclose(inf);
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/*DEBUG printf("%s: dev=%x, inc=%d, oldcount=%d count=%d\n",
file, dev, inc, oldcount, count); */
if (!dev && inc == 0 && oldcount == -1 && count == 0)
oldcount = 0;
else if (!dev && count == 0)
oldcount = -1;
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if (count == oldcount) {
for (fl = fl_head; fl;) {
struct file_list *fln = fl->f_next;
free((char *)fl);
fl = fln;
}
return;
}
if (oldcount == -1) {
fl = (struct file_list *) malloc(sizeof *fl);
bzero(fl, sizeof(*fl));
fl->f_fn = name;
fl->f_type = count;
fl->f_next = fl_head;
fl_head = fl;
}
outf = fopen(file, "w");
if (outf == 0) {
perror(file);
exit(1);
}
for (fl = fl_head; fl;) {
struct file_list *fln = fl->f_next;
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if (dev || (!dev && count))
fprintf(outf, "#define %s %u\n",
fl->f_fn, count ? fl->f_type : 0);
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free((char *)fl);
fl = fln;
}
(void) fclose(outf);
}
/*
* convert a dev name to a .h file name
*/
char *
toheader(dev)
char *dev;
{
static char hbuf[80];
(void) strcpy(hbuf, path(dev));
(void) strcat(hbuf, ".h");
return (hbuf);
}
/*
* convert a dev name to a macro name
*/
char *tomacro(dev)
register char *dev;
{
static char mbuf[20];
register char *cp;
cp = mbuf;
*cp++ = 'N';
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while (*dev) {
if (islower(*dev))
*cp++ = toupper(*dev++);
else
*cp++ = *dev++;
}
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*cp++ = 0;
return (mbuf);
}