lib/lp/duplist.c

	duplist.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */


#ident  "%Z%%M% %I% %E% SMI"    /* SVr4.0 1.8   */
/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */

#include "errno.h"
#include "string.h"
#include "stdlib.h"

#include "lp.h"

/**
 ** duplist() - DUPLICATE A LIST OF STRINGS
 **/

char **
#if defined(__STDC__)
duplist (
    char **         src
)
#else
duplist (src)
    register char       **src;
#endif
{
    register char       **dst;

    register int        nitems,
                n;

    if (!src || !*src)
        return (0);

    nitems = lenlist(src);
    if (!(dst = (char **)Malloc((nitems + 1) * sizeof(char *)))) {
        errno = ENOMEM;
        return (0);
    }

    for (n = 0; n < nitems; n++)
        if (!(dst[n] = Strdup(src[n]))) {
            while (n--)
                Free (dst[n]);
            Free ((char *)dst);
            errno = ENOMEM;
            return (0);
        }
    dst[nitems] = 0;

    return (dst);
}