/*
 * 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 2006 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 <limits.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <pkglocs.h>
#include <locale.h>
#include <libintl.h>
#include <pkglib.h>
#include <install.h>
#include <libinst.h>
#include <libadm.h>
#include <messages.h>

#define DEFMAIL "root"

extern struct admin     adm;            /* holds info about install admin */
extern int              warnflag;       /* != 0 non-fatal error occurred 2 */

static struct {
        char    **memloc;
        char    *tag;
} admlist[] = {
        &adm.action,            "action",
        &adm.basedir,           "basedir",
        &adm.conflict,          "conflict",
        &adm.idepend,           "idepend",
        &adm.instance,          "instance",
        &adm.mail,              "mail",
        &adm.partial,           "partial",
        &adm.rdepend,           "rdepend",
        &adm.RSCRIPTALT,        RSCRIPTALT_KEYWORD,
        &adm.runlevel,          "runlevel",
        &adm.setuid,            "setuid",
        &adm.space,             "space",
        /* MUST BE LAST ENTRY IN LIST */
        (char **)NULL,          (char *)NULL
};

/*
 * Name:        setadminSetting
 * Description: set one administration parameter setting
 * Arguments:   a_paramName - pointer to string representing the name of
 *                      the administration parameter to set
 *              a_paramValue - pointer to string representing the value
 *                      to set the specified administration parameter to
 * Returns:     char *
 *                      - old value the parameter had before being set
 *                      == NULL - the old paramter was not set
 */

char *
setadminSetting(char *a_paramName, char *a_paramValue)
{
        char    *oldValue = (char *)NULL;
        int     i;

        /* locate and update the specified admin setting */

        for (i = 0; admlist[i].memloc; i++) {
                if (strcmp(a_paramName, admlist[i].tag) == 0) {
                        oldValue = *admlist[i].memloc;
                        *admlist[i].memloc = a_paramValue;
                        break;
                }
        }

        if (admlist[i].memloc == (char **)NULL) {
                logerr(WRN_UNKNOWN_ADM_PARAM, a_paramName);
        }

        return (oldValue);
}

/*
 * Name:        setadminFile
 * Description: read and remember settings from administration file
 * Arguments:   file - pointer to string representing the path to the
 *                      administration file to read - if this is NULL
 *                      then the name "default" is used - if this is
 *                      the string "none" then the admin "basedir"
 *                      setting is set to "ask" so that the location
 *                      of the administration file will be interactively
 *                      asked at the appropriate time
 * Returns:     void
 */

void
setadminFile(char *file)
{
        FILE    *fp;
        int     i;
        char    param[MAX_PKG_PARAM_LENGTH];
        char    *value;
        char    path[PATH_MAX];
        int     mail = 0;

        if (file == NULL)
                file = "default";
        else if (strcmp(file, "none") == 0) {
                adm.basedir = "ask";
                return;
        }

        if (file[0] == '/')
                (void) strcpy(path, file);
        else {
                (void) snprintf(path, sizeof (path), "%s/admin/%s",
                                get_PKGADM(), file);
                if (access(path, R_OK)) {
                        (void) snprintf(path, sizeof (path), "%s/admin/%s",
                                PKGADM, file);
                }
        }

        if ((fp = fopen(path, "r")) == NULL) {
                progerr(ERR_OPEN_ADMIN_FILE, file, strerror(errno));
                quit(99);
        }

        param[0] = '\0';
        while (value = fpkgparam(fp, param)) {
                if (strcmp(param, "mail") == 0) {
                        mail = 1;
                }
                if (value[0] == '\0') {
                        param[0] = '\0';
                        continue; /* same as not being set at all */
                }
                for (i = 0; admlist[i].memloc; i++) {
                        if (strcmp(param, admlist[i].tag) == 0) {
                                *admlist[i].memloc = value;
                                break;
                        }
                }
                if (admlist[i].memloc == NULL) {
                        logerr(WRN_UNKNOWN_ADM_PARAM, param);
                        free(value);
                }
                param[0] = '\0';
        }

        (void) fclose(fp);

        if (!mail) {
                adm.mail = DEFMAIL;     /* if we don't assign anything to it */
        }
}