cmd/bnu/uucpname.c

	uucpname.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 1995 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"

#include "uucp.h"

/*
 * get the uucp name
 * return:
 *  none
 */
void
uucpname(name)
register char *name;
{
    char *s;
    char NameBuf[MAXBASENAME + 1];
    FILE *NameFile;

    NameBuf[0] = '\0';
    if ((NameFile = fopen(SYSNAMEFILE, "r")) != NULL) {
        if (fscanf(NameFile, "%14s", NameBuf) != 1) {
            (void) fprintf(stderr,
                gettext("No system name specified in %s\n"),
                SYSNAMEFILE);
            cleanup(-1);
        }
        s = NameBuf;
        (void) fclose(NameFile);
    } else {
#ifdef BSD4_2
    char    NameBuf[MAXBASENAME + 1];

    gethostname(NameBuf, MAXBASENAME);
    /* strip off any domain name part */
    if ((s = index(NameBuf, '.')) != NULL)
        *s = '\0';
    s = NameBuf;
    s[MAXBASENAME] = '\0';
#else /* !BSD4_2 */
#ifdef UNAME
    struct utsname utsn;

    uname(&utsn);
    s = utsn.nodename;
#else /* !UNAME */
    char    NameBuf[MAXBASENAME + 1], *strchr();
    FILE    *NameFile;

    s = MYNAME;
    NameBuf[0] = '\0';

    if ((NameFile = fopen("/etc/whoami", "r")) != NULL) {
        /* etc/whoami wins */
        (void) fgets(NameBuf, MAXBASENAME + 1, NameFile);
        (void) fclose(NameFile);
        NameBuf[MAXBASENAME] = '\0';
        if (NameBuf[0] != '\0') {
            if ((s = strchr(NameBuf, '\n')) != NULL)
                *s = '\0';
            s = NameBuf;
        }
    }
#endif /* UNAME */
#endif /* BSD4_2 */
    }

    (void) strncpy(name, s, MAXBASENAME);
    name[MAXBASENAME] = '\0';
    /* strip off any domain name from the host name */
    if ((s = strchr(name, '.')) != NULL)
        *s = '\0';
    return;
}