lib/printers/printwheels.c

/*
 * 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   */


#pragma ident   "%Z%%M% %I% %E% SMI"
/* 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;
}