GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/config/mkswap.c Lines: 0 36 0.0 %
Date: 2017-11-13 Branches: 0 30 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: mkswap.c,v 1.16 2016/10/16 17:50:00 tb Exp $	*/
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/*	$NetBSD: mkswap.c,v 1.5 1996/08/31 20:58:27 mycroft Exp $	*/
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/*
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 * Copyright (c) 1992, 1993
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * This software was developed by the Computer Systems Engineering group
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 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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 * contributed to Berkeley.
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 *
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 * All advertising materials mentioning features or use of this software
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 * must display the following acknowledgement:
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 *	This product includes software developed by the University of
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 *	California, Lawrence Berkeley Laboratories.
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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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 *	from: @(#)mkswap.c	8.1 (Berkeley) 6/6/93
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 */
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#include <sys/param.h>	/* NODEV */
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#include <err.h>
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#include <errno.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 "config.h"
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#include "sem.h"
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static int mkoneswap(struct config *);
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/*
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 * Make the various swap*.c files.  Nothing to do for generic swap.
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 */
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int
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mkswap(void)
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{
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	struct config *cf;
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	for (cf = allcf; cf != NULL; cf = cf->cf_next)
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		if (cf->cf_root != NULL && mkoneswap(cf))
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			return (1);
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	return (0);
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}
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static char *
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mkdevstr(dev_t d)
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{
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	static char buf[32];
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	if (d == NODEV)
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		(void)snprintf(buf, sizeof buf, "NODEV");
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	else
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		(void)snprintf(buf, sizeof buf, "makedev(%d, %d)",
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		    major(d), minor(d));
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	return buf;
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}
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static int
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mkoneswap(struct config *cf)
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{
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	char fname[200], *mountroot;
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	struct nvlist *nv;
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	FILE *fp;
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	(void)snprintf(fname, sizeof fname, "swap%s.c", cf->cf_name);
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	if ((fp = fopen(fname, "w")) == NULL) {
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		warn("cannot write %s", fname);
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		return (1);
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	}
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	if (fputs("\
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#include <sys/param.h>\n\
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#include <sys/conf.h>\n\
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#include <sys/systm.h>\n\n", fp) < 0)
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		goto wrerror;
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	nv = cf->cf_root;
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	if (fprintf(fp, "dev_t\trootdev = %s;\t/* %s */\n",
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	    mkdevstr(nv->nv_int), nv->nv_str) < 0)
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		goto wrerror;
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	nv = cf->cf_dump;
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	if (fprintf(fp, "dev_t\tdumpdev = %s;\t/* %s */\n",
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	    mkdevstr(nv->nv_int), nv->nv_str) < 0)
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		goto wrerror;
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	if (fputs("\nstruct\tswdevt swdevt[] = {\n", fp) < 0)
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		goto wrerror;
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	for (nv = cf->cf_swap; nv != NULL; nv = nv->nv_next)
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		if (fprintf(fp, "\t{ %s,\t0 },\t/* %s */\n",
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		    mkdevstr(nv->nv_int), nv->nv_str) < 0)
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			goto wrerror;
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	if (fputs("\t{ NODEV, 0 }\n};\n\n", fp) < 0)
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		goto wrerror;
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	mountroot =
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	    cf->cf_root->nv_str == s_nfs ? "nfs_mountroot" : "dk_mountroot";
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	if (fprintf(fp, "int (*mountroot)(void) = %s;\n", mountroot) < 0)
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		goto wrerror;
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	if (fclose(fp)) {
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		fp = NULL;
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		goto wrerror;
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	}
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	return (0);
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wrerror:
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	warn("error writing %s", fname);
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	if (fp != NULL)
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		(void)fclose(fp);
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	/* (void)unlink(fname); */
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	return (1);
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}