/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2017 Peter Tribble.
 */

/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */


#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <utmpx.h>
#include <dirent.h>
#include <sys/types.h>
#include <pkgstrct.h>
#include <locale.h>
#include <libintl.h>
#include "install.h"
#include <pkglib.h>
#include "libadm.h"
#include "libinst.h"
#include "messages.h"

extern struct admin adm;

extern char     pkgloc[], *pkginst, *msgtext;

static boolean_t        preremoveCheck = B_FALSE;
static char             *zoneName = (char *)NULL;


void
rcksetPreremoveCheck(boolean_t a_preremoveCheck)
{
        preremoveCheck = a_preremoveCheck;
}

void
rcksetZoneName(char *a_zoneName)
{
        zoneName = a_zoneName;
}

int
rckrunlevel(void)
{
        struct utmpx utmpx;
        struct utmpx *putmpx;
        char    ans[MAX_INPUT];
        char    *pt;
        char    *rstates;
        int     n;
        char    *uxstate;

        if (ADM(runlevel, "nocheck")) {
                return (0);
        }

        pt = getenv("RSTATES");
        if (pt == NULL) {
                return (0);
        }

        utmpx.ut_type = RUN_LVL;
        putmpx = getutxid(&utmpx);
        if (putmpx == NULL) {
                progerr(ERR_RUNSTATE);
                return (99);
        }
        uxstate = strtok(&putmpx->ut_line[10], " \t\n");

        rstates = qstrdup(pt);
        if ((pt = strtok(pt, " \t\n, ")) == NULL)
                return (0); /* no list is no list */
        do {
                if (strcmp(pt, uxstate) == 0) {
                        free(rstates);
                        return (0);
                }
        } while (pt = strtok(NULL, " \t\n, "));

        if (preremoveCheck == B_FALSE) {
                msgtext = MSG_PKGREMOVE_RUNLEVEL;
                ptext(stderr, msgtext, uxstate);
        } else {
                (void) fprintf(stdout, "runlevel=%s", uxstate);
        }

        pt = strtok(rstates, " \t\n, ");
        do {
                if (preremoveCheck == B_FALSE) {
                        ptext(stderr, "\\t%s", pt);
                } else {
                        (void) fprintf(stdout, ":%s", pt);
                }
        } while (pt = strtok(NULL, " \t\n, "));

        if (preremoveCheck == B_TRUE) {
                (void) fprintf(stdout, "\n");
        }

        free(rstates);

        if (ADM(runlevel, "quit")) {
                return (4);
        }

        if (echoGetFlag() == B_FALSE) {
                return (5);
        }

        msgtext = NULL;

        n = ckyorn(ans, NULL, NULL, HLP_PKGREMOVE_RUNLEVEL,
            ASK_PKGREMOVE_CONTINUE);

        if (n != 0) {
                return (n);
        }

        if (strchr("yY", *ans) == NULL) {
                return (3);
        }

        return (0);
}

int
rckdepend(void)
{
        int     n;
        char    ans[MAX_INPUT];

        if (ADM(rdepend, "nocheck")) {
                return (0);
        }

        if (zoneName == (char *)NULL) {
                echo(MSG_CHECKREMOVE_PKG_IN_GZ, pkginst);
        } else {
                echo(MSG_CHECKREMOVE_PKG_IN_ZONE, pkginst, zoneName);
        }

        if (dockdeps(pkginst, 1, preremoveCheck)) {
                msgtext = MSG_PKGREMOVE_DEPEND;

                if (preremoveCheck == B_FALSE) {
                        echo(msgtext);
                }

                if (ADM(rdepend, "quit")) {
                        return (4);
                }

                if (echoGetFlag() == B_FALSE) {
                        return (5);
                }

                msgtext = NULL;

                n = ckyorn(ans, NULL, NULL, HLP_PKGREMOVE_DEPEND,
                    ASK_PKGREMOVE_CONTINUE);

                if (n != 0) {
                        return (n);
                }

                if (strchr("yY", *ans) == NULL) {
                        return (3);
                }
        }

        return (0);
}

int
rckpriv(void)
{
        struct dirent   *dp;
        DIR             *dirfp;
        int             n;
        char            found;
        char            ans[MAX_INPUT];
        char            path[PATH_MAX];

        if (ADM(action, "nocheck")) {
                return (0);
        }

        (void) snprintf(path, sizeof (path), "%s/install", pkgloc);
        if ((dirfp = opendir(path)) == NULL)
                return (0);

        found = 0;
        while ((dp = readdir(dirfp)) != NULL) {
                if ((strcmp(dp->d_name, "preremove") == 0) ||
                    (strcmp(dp->d_name, "postremove") == 0) ||
                    (strncmp(dp->d_name, "r.", 2) == 0)) {
                        found++;
                        break;
                }
        }
        (void) closedir(dirfp);

        if (found) {
                if (preremoveCheck == B_FALSE) {
                        ptext(stderr, MSG_PKGREMOVE_PRIV);
                }
                msgtext = MSG_PKGSCRIPTS_FOUND;

                if (ADM(action, "quit")) {
                        return (4);
                }

                if (echoGetFlag() == B_FALSE) {
                        return (5);
                }

                msgtext = NULL;

                n = ckyorn(ans, NULL, NULL, HLP_PKGREMOVE_PRIV,
                    ASK_PKGREMOVE_CONTINUE);

                if (n != 0) {
                        return (n);
                }

                if (strchr("yY", *ans) == NULL) {
                        return (3);
                }
        }

        return (0);
}