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/* $OpenBSD: mkswap.c,v 1.3 1996/04/21 23:40:20 deraadt Exp $ */
/* $NetBSD: mkswap.c,v 1.4 1996/03/17 20:36:25 christos Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratories.
*
* 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.
*
* from: @(#)mkswap.c 8.1 (Berkeley) 6/6/93
*/
#include <sys/param.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "sem.h"
static int mkoneswap __P((struct config *));
/*
* Make the various swap*.c files. Nothing to do for generic swap.
*/
int
mkswap()
{
register struct config *cf;
for (cf = allcf; cf != NULL; cf = cf->cf_next)
if (cf->cf_root != NULL && mkoneswap(cf))
return (1);
return (0);
}
static char *
mkdevstr(d)
dev_t d;
{
static char buf[32];
if (d == NODEV)
(void)sprintf(buf, "NODEV");
else
(void)sprintf(buf, "makedev(%d, %d)", major(d), minor(d));
return buf;
}
static int
mkoneswap(cf)
register struct config *cf;
{
register struct nvlist *nv;
register FILE *fp;
register char *fname;
char buf[200];
char *mountroot;
(void)sprintf(buf, "swap%s.c", cf->cf_name);
fname = path(buf);
if ((fp = fopen(fname, "w")) == NULL) {
(void)fprintf(stderr, "config: cannot write %s: %s\n",
fname, strerror(errno));
return (1);
}
if (fputs("\
#include <sys/param.h>\n\
#include <sys/conf.h>\n\n", fp) < 0)
goto wrerror;
nv = cf->cf_root;
if (fprintf(fp, "dev_t\trootdev = %s;\t/* %s */\n",
mkdevstr(nv->nv_int), nv->nv_str) < 0)
goto wrerror;
nv = cf->cf_dump;
if (fprintf(fp, "dev_t\tdumpdev = %s;\t/* %s */\n",
mkdevstr(nv->nv_int), nv->nv_str) < 0)
goto wrerror;
if (fputs("\nstruct\tswdevt swdevt[] = {\n", fp) < 0)
goto wrerror;
for (nv = cf->cf_swap; nv != NULL; nv = nv->nv_next)
if (fprintf(fp, "\t{ %s,\t0,\t0 },\t/* %s */\n",
mkdevstr(nv->nv_int), nv->nv_str) < 0)
goto wrerror;
if (fputs("\t{ NODEV, 0, 0 }\n};\n\n", fp) < 0)
goto wrerror;
mountroot =
cf->cf_root->nv_str == s_nfs ? "nfs_mountroot" : "ffs_mountroot";
if (fprintf(fp, "extern int %s __P((void *));\n", mountroot) < 0)
goto wrerror;
if (fprintf(fp, "int (*mountroot) __P((void *)) = %s;\n", mountroot) < 0)
goto wrerror;
if (fclose(fp)) {
fp = NULL;
goto wrerror;
}
free(fname);
return (0);
wrerror:
(void)fprintf(stderr, "config: error writing %s: %s\n",
fname, strerror(errno));
if (fp != NULL)
(void)fclose(fp);
/* (void)unlink(fname); */
free(fname);
return (1);
}
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