/*
 * 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   */


/*
 * Copyright (c) 1997, by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*LINTLIBRARY*/

#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "libadm.h"

#define DEFMSG  "ERROR: "
#define MS      sizeof (DEFMSG)
#define INVINP  "invalid input"

void
puterror(FILE *fp, char *defmesg, char *error)
{
        char    *tmp;
        size_t  n;

        if (error == NULL) {
                /* use default message since no error was provided */
                n = (defmesg ?  strlen(defmesg) : strlen(INVINP));
                tmp = calloc(MS+n+1, sizeof (char));
                (void) strcpy(tmp, DEFMSG);
                (void) strcat(tmp, defmesg ? defmesg : INVINP);

        } else if (defmesg != NULL) {
                n = strlen(error);
                if (error[0] == '~') {
                        /* prepend default message */
                        tmp = calloc(MS+n+strlen(defmesg)+2, sizeof (char));
                        (void) strcpy(tmp, DEFMSG);
                        (void) strcat(tmp, defmesg);
                        (void) strcat(tmp, "\n");
                        ++error;
                        (void) strcat(tmp, error);
                } else if (n && (error[n-1] == '~')) {
                        /* append default message */
                        tmp = calloc(MS+n+strlen(defmesg)+2, sizeof (char));
                        (void) strcpy(tmp, DEFMSG);
                        (void) strcat(tmp, error);
                        /* first -1 'cuz sizeof (DEFMSG) includes terminator */
                        tmp[MS-1+n-1] = '\0';
                        (void) strcat(tmp, "\n");
                        (void) strcat(tmp, defmesg);
                } else {
                        tmp = calloc(MS+n+1, sizeof (char));
                        (void) strcpy(tmp, DEFMSG);
                        (void) strcat(tmp, error);
                }
        } else {
                n = strlen(error);
                tmp = calloc(MS+n+1, sizeof (char));
                (void) strcpy(tmp, DEFMSG);
                (void) strcat(tmp, error);
        }
        (void) puttext(fp, tmp, ckindent, ckwidth);
        (void) fputc('\n', fp);
        free(tmp);
}