NetBSD/usr.sbin/sysinst/checkrc.c

118 lines
3.2 KiB
C

/* $NetBSD: checkrc.c,v 1.1 2014/07/26 19:30:44 dholland Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jeffrey C. Rizzo
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/* checkrc.c -- Create a script on the target to check the state of
* its rc.conf variables. */
#include <curses.h>
#include <err.h>
#include <stdio.h>
#include "defs.h"
#include "msg_defs.h"
#include "menu_defs.h"
#define RC_CHECK_SCRIPT "/tmp/checkrc.sh"
static int create_script(const char *, int);
static int check(const char *, int);
char *rcconf = NULL;
enum {
CHECK_CONF,
CHECK_DEFAULT
};
static int
create_script(const char *varname, int filetocheck)
{
FILE *fp;
if ((fp = fopen(target_expand(RC_CHECK_SCRIPT), "w")) == NULL) {
if (logfp)
fprintf(logfp,"Could not open %s for writing",
target_expand(RC_CHECK_SCRIPT));
warn("Could not open %s for writing",
target_expand(RC_CHECK_SCRIPT));
return 1;
}
if (filetocheck == CHECK_DEFAULT)
fprintf(fp, "#!/bin/sh\n. /etc/defaults/rc.conf\n"
". /etc/rc.subr\n");
else
fprintf(fp, "#!/bin/sh\n. /etc/rc.conf\n. /etc/rc.subr\n");
fprintf(fp, "if checkyesno %s\nthen\necho YES\nelse\necho NO\nfi\n",
varname);
fclose(fp);
return 0;
}
static int
check(const char *varname, int filetocheck)
{
char *buf;
create_script(varname, filetocheck);
if (target_already_root())
collect(T_OUTPUT, &buf, "/bin/sh %s 2>&1", RC_CHECK_SCRIPT);
else
collect(T_OUTPUT, &buf, "chroot %s /bin/sh %s 2>&1",
target_prefix(), RC_CHECK_SCRIPT);
unlink(target_expand(RC_CHECK_SCRIPT));
if (logfp) {
fprintf(logfp,"var %s is %s\n", varname, buf);
fflush(logfp);
}
if (strncmp(buf, "YES", strlen("YES")) == 0)
return 1;
else
return 0;
}
int
check_rcvar(const char *varname)
{
return check(varname, CHECK_CONF);
}
int
check_rcdefault(const char *varname)
{
return check(varname, CHECK_DEFAULT);
}