/* $NetBSD: checkrc.c,v 1.1.30.1 2019/08/18 13:32:50 msaitoh 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 #include #include #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; int rv; 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); } rv = strncmp(buf, "YES", strlen("YES")) == 0; free(buf); return rv; } int check_rcvar(const char *varname) { return check(varname, CHECK_CONF); } int check_rcdefault(const char *varname) { return check(varname, CHECK_DEFAULT); }