svr4pkg/libinst/srcpath.c

	srcpath.c revision 5c51f1241dbbdf2656d0e10011981411ed0c9673
/*
 * 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 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */


#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>

char *
srcpath(char *dir, char *src, int part, int nparts)
{
    static char tmppath[PATH_MAX];
    char    *copy;
    size_t  copyLen;

    copy = tmppath;

    if (dir != NULL) {
        size_t theLen = strlen(dir);

        (void) strcpy(copy, dir);
        copy += theLen;
        copyLen = (sizeof (tmppath) - theLen);
    } else {
        copy[0] = '\0';
        copyLen = sizeof (tmppath);
    }

    if (nparts > 1) {
        (void) snprintf(copy, copyLen,
            ((src[0] == '/') ? "/root.%d%s" : "/reloc.%d/%s"),
            part, src);
    } else {
        (void) snprintf(copy, copyLen,
            ((src[0] == '/') ? "/root%s" : "/reloc/%s"), src);
    }

    return (tmppath);
}