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Annotation of src/distrib/utils/sysinst/checkrc.c, Revision 1.1.2.2

1.1.2.2 ! yamt        1: /* $NetBSD$ */
        !             2:
        !             3: /*-
        !             4:  * Copyright (c) 2012 The NetBSD Foundation, Inc.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * This code is derived from software contributed to The NetBSD Foundation
        !             8:  * by Jeffrey C. Rizzo
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            20:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            21:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            22:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            23:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            24:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            25:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            26:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            27:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            28:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            29:  * POSSIBILITY OF SUCH DAMAGE.
        !            30:  */
        !            31:
        !            32: /* checkrc.c -- Create a script on the target to check the state of
        !            33:  * its rc.conf variables. */
        !            34:
        !            35: #include <curses.h>
        !            36: #include <err.h>
        !            37: #include <stdio.h>
        !            38: #include "defs.h"
        !            39: #include "msg_defs.h"
        !            40: #include "menu_defs.h"
        !            41:
        !            42: #define RC_CHECK_SCRIPT "/tmp/checkrc.sh"
        !            43:
        !            44: static int create_script(const char *, int);
        !            45: static int check(const char *, int);
        !            46:
        !            47: char *rcconf = NULL;
        !            48:
        !            49: enum {
        !            50:        CHECK_CONF,
        !            51:        CHECK_DEFAULT
        !            52: };
        !            53:
        !            54: static int
        !            55: create_script(const char *varname, int filetocheck)
        !            56: {
        !            57:        FILE    *fp;
        !            58:
        !            59:        if ((fp = fopen(target_expand(RC_CHECK_SCRIPT), "w")) == NULL) {
        !            60:                if (logfp)
        !            61:                        fprintf(logfp,"Could not open %s for writing",
        !            62:                            target_expand(RC_CHECK_SCRIPT));
        !            63:                warn("Could not open %s for writing",
        !            64:                    target_expand(RC_CHECK_SCRIPT));
        !            65:                return 1;
        !            66:        }
        !            67:
        !            68:        if (filetocheck == CHECK_DEFAULT)
        !            69:                fprintf(fp, "#!/bin/sh\n. /etc/defaults/rc.conf\n"
        !            70:                    ". /etc/rc.subr\n");
        !            71:        else
        !            72:                fprintf(fp, "#!/bin/sh\n. /etc/rc.conf\n. /etc/rc.subr\n");
        !            73:        fprintf(fp, "if checkyesno %s\nthen\necho YES\nelse\necho NO\nfi\n",
        !            74:            varname);
        !            75:
        !            76:        fclose(fp);
        !            77:        return 0;
        !            78: }
        !            79:
        !            80: static int
        !            81: check(const char *varname, int filetocheck)
        !            82: {
        !            83:        char *buf;
        !            84:
        !            85:        create_script(varname, filetocheck);
        !            86:
        !            87:        collect(T_OUTPUT, &buf, "chroot %s /bin/sh %s 2>&1", target_prefix(),
        !            88:            RC_CHECK_SCRIPT);
        !            89:
        !            90:        unlink(target_expand(RC_CHECK_SCRIPT));
        !            91:
        !            92:        if (logfp) {
        !            93:                fprintf(logfp,"var %s is %s\n", varname, buf);
        !            94:                fflush(logfp);
        !            95:        }
        !            96:
        !            97:        if (strncmp(buf, "YES", strlen("YES")) == 0)
        !            98:                return 1;
        !            99:        else
        !           100:                return 0;
        !           101: }
        !           102:
        !           103: int
        !           104: check_rcvar(const char *varname)
        !           105: {
        !           106:        return check(varname, CHECK_CONF);
        !           107: }
        !           108:
        !           109: int
        !           110: check_rcdefault(const char *varname)
        !           111: {
        !           112:        return check(varname, CHECK_DEFAULT);
        !           113: }

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