/*
 * 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 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   */

/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */

#include "string.h"
#include "errno.h"
#include "sys/types.h"
#include "stdlib.h"

#include "lp.h"
#include "printers.h"

/**
 ** getpwheel() - GET PRINT WHEEL INFO FROM DISK
 **/

PWHEEL *
#if     defined(__STDC__)
getpwheel (
        char *                  name
)
#else
getpwheel (name)
        char                    *name;
#endif
{
        static long             lastdir         = -1;

        PWHEEL          *pwp;

        register FALERT         *pa;


        if (!name || !*name) {
                errno = EINVAL;
                return (0);
        }

        /*
         * Getting ``all''? If so, jump into the directory
         * wherever we left off.
         */
        if (STREQU(NAME_ALL, name)) {
                if (!(name = next_dir(Lp_A_PrintWheels, &lastdir)))
                        return (0);
        } else
                lastdir = -1;

        /*
         * Get the information for the alert.
         */
        if (!(pa = getalert(Lp_A_PrintWheels, name))) {

                /*
                 * Unless the world has turned weird, we shouldn't
                 * get ENOTDIR if we're doing the ``all'' case--because
                 * getting here in the all case meant the printwheel
                 * directory exists, but ENOTDIR means it doesn't!
                 */
                if (errno == ENOTDIR)
                        errno = ENOENT; /* printwheel doesn't exist */

                return (0);
        }

        pwp = calloc(1, sizeof (*pwp));
        pwp->alert = *pa;
        pwp->name = Strdup(name);

        return (pwp);
}

/**
 ** putpwheel() - PUT PRINT WHEEL INFO TO DISK
 **/

int
#if     defined(__STDC__)
putpwheel (
        char *                  name,
        PWHEEL *                pwheelp
)
#else
putpwheel (name, pwheelp)
        char                    *name;
        PWHEEL                  *pwheelp;
#endif
{
        register char           *path;

        struct stat             statbuf;


        if (!name || !*name) {
                errno = EINVAL;
                return (-1);
        }

        if (STREQU(name, NAME_ALL)) {
                errno = ENOENT;
                return (-1);
        }

        /*
         * Create the parent directory for this printer
         * if it doesn't yet exist.
         */
        if (!(path = makepath(Lp_A_PrintWheels, name, (char *)0)))
                return (-1);
        if (Stat(path, &statbuf) == 0) {
                if (!S_ISDIR(statbuf.st_mode)) {
                        Free (path);
                        errno = ENOTDIR;
                        return (-1);
                }
        } else if (errno != ENOENT || mkdir_lpdir(path, MODE_DIR) == -1) {
                Free (path);
                return (-1);
        }
        Free (path);

        /*
         * Now write out the alert condition.
         */
        if (putalert(Lp_A_PrintWheels, name, &(pwheelp->alert)) == -1)
                return (-1);

        return (0);
}

/**
 ** delpwheel() - DELETE PRINT WHEEL INFO FROM DISK
 **/

#if     defined(__STDC__)
static int              _delpwheel ( char * );
#else
static int              _delpwheel();
#endif

int
#if     defined(__STDC__)
delpwheel (
        char *                  name
)
#else
delpwheel (name)
        char                    *name;
#endif
{
        long                    lastdir;


        if (!name || !*name) {
                errno = EINVAL;
                return (-1);
        }

        if (STREQU(NAME_ALL, name)) {
                lastdir = -1;
                while ((name = next_dir(Lp_A_PrintWheels, &lastdir)))
                        if (_delpwheel(name) == -1)
                                return (-1);
                return (0);
        } else
                return (_delpwheel(name));
}

/**
 ** _delpwheel()
 **/

static int
#if     defined(__STDC__)
_delpwheel (
        char *                  name
)
#else
_delpwheel (name)
        char                    *name;
#endif
{
        register char           *path;

        if (delalert(Lp_A_PrintWheels, name) == -1)
                return (-1);
        if (!(path = makepath(Lp_A_PrintWheels, name, (char *)0)))
                return (-1);
        if (Rmdir(path)) {
                Free (path);
                return (-1);
        }
        Free (path);
        return (0);
}

/**
 **  freepwheel() - FREE MEMORY ALLOCATED FOR PRINT WHEEL STRUCTURE
 **/

void
#if     defined(__STDC__)
freepwheel (
        PWHEEL *                ppw
)
#else
freepwheel (ppw)
        PWHEEL                  *ppw;
#endif
{
        if (!ppw)
                return;
        if (ppw->name)
                Free (ppw->name);
        if (ppw->alert.shcmd)
                Free (ppw->alert.shcmd);
        Free (ppw);

        return;
}