72 lines
1.6 KiB
C
Executable File
72 lines
1.6 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)gethostname.c 1.2 90/03/13 SMI" /* SVr4.0 1.2 */
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/*******************************************************************
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PROPRIETARY NOTICE (Combined)
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This source code is unpublished proprietary information
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constituting, or derived under license from AT&T's UNIX(r) System V.
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In addition, portions of such source code were derived from Berkeley
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4.3 BSD under license from the Regents of the University of
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California.
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Copyright Notice
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Notice of copyright on this source code product does not indicate
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publication.
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(c) 1986,1987,1988,1989 Sun Microsystems, Inc
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(c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
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All rights reserved.
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********************************************************************/
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#include <sys/types.h>
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#include <sys/utsname.h>
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#include <sys/systeminfo.h>
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#include <sys/errno.h>
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extern int errno;
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gethostname(name, namelen)
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char *name;
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int namelen;
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{
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int error;
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error = sysinfo(SI_HOSTNAME, name, namelen);
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/*
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* error > 0 ==> number of bytes to hold name
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* and is discarded since gethostname only
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* cares if it succeeded or failed
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*/
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return (error == -1 ? -1 : 0);
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}
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sethostname(name, namelen)
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char *name;
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int namelen;
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{
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int error;
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/*
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* Check if superuser
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*/
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if (getuid()) {
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errno = EPERM;
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return (-1);
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}
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error = sysinfo(SI_SET_HOSTNAME, name, namelen);
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return (error == -1 ? -1 : 0);
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}
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