addlist.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 1.7 */
/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
#include "string.h"
#include "errno.h"
#include "stdlib.h"
#include "lp.h"
/**
** addlist() - ADD ITEM TO (char **) LIST
**/
int
#if defined(__STDC__)
addlist (
char *** plist,
char * item
)
#else
addlist (plist, item)
register char ***plist,
*item;
#endif
{
register char **pl;
register int n;
if (*plist) {
n = lenlist(*plist);
for (pl = *plist; *pl; pl++)
if (STREQU(*pl, item))
break;
if (!*pl) {
n++;
*plist = (char **)Realloc(
(char *)*plist,
(n + 1) * sizeof(char *)
);
if (!*plist) {
errno = ENOMEM;
return (-1);
}
(*plist)[n - 1] = Strdup(item);
(*plist)[n] = 0;
}
} else {
*plist = (char **)Malloc(2 * sizeof(char *));
if (!*plist) {
errno = ENOMEM;
return (-1);
}
(*plist)[0] = Strdup(item);
(*plist)[1] = 0;
}
return (0);
}