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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 1995 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 
     31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     32 
     33 #include "uucp.h"
     34 
     35 /*
     36  * get the uucp name
     37  * return:
     38  *	none
     39  */
     40 void
     41 uucpname(name)
     42 register char *name;
     43 {
     44 	char *s;
     45 	char NameBuf[MAXBASENAME + 1];
     46 	FILE *NameFile;
     47 
     48 	NameBuf[0] = '\0';
     49 	if ((NameFile = fopen(SYSNAMEFILE, "r")) != NULL) {
     50 		if (fscanf(NameFile, "%14s", NameBuf) != 1) {
     51 			(void) fprintf(stderr,
     52 				gettext("No system name specified in %s\n"),
     53 				SYSNAMEFILE);
     54 			cleanup(-1);
     55 		}
     56 		s = NameBuf;
     57 		(void) fclose(NameFile);
     58 	} else {
     59 #ifdef BSD4_2
     60 	char	NameBuf[MAXBASENAME + 1];
     61 
     62 	gethostname(NameBuf, MAXBASENAME);
     63 	/* strip off any domain name part */
     64 	if ((s = index(NameBuf, '.')) != NULL)
     65 		*s = '\0';
     66 	s = NameBuf;
     67 	s[MAXBASENAME] = '\0';
     68 #else /* !BSD4_2 */
     69 #ifdef UNAME
     70 	struct utsname utsn;
     71 
     72 	uname(&utsn);
     73 	s = utsn.nodename;
     74 #else /* !UNAME */
     75 	char	NameBuf[MAXBASENAME + 1], *strchr();
     76 	FILE	*NameFile;
     77 
     78 	s = MYNAME;
     79 	NameBuf[0] = '\0';
     80 
     81 	if ((NameFile = fopen("/etc/whoami", "r")) != NULL) {
     82 		/* etc/whoami wins */
     83 		(void) fgets(NameBuf, MAXBASENAME + 1, NameFile);
     84 		(void) fclose(NameFile);
     85 		NameBuf[MAXBASENAME] = '\0';
     86 		if (NameBuf[0] != '\0') {
     87 			if ((s = strchr(NameBuf, '\n')) != NULL)
     88 				*s = '\0';
     89 			s = NameBuf;
     90 		}
     91 	}
     92 #endif /* UNAME */
     93 #endif /* BSD4_2 */
     94 	}
     95 
     96 	(void) strncpy(name, s, MAXBASENAME);
     97 	name[MAXBASENAME] = '\0';
     98 	/* strip off any domain name from the host name */
     99 	if ((s = strchr(name, '.')) != NULL)
    100 		*s = '\0';
    101 	return;
    102 }
    103