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gethostname.c (92986) gethostname.c (119140)
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)gethostname.c 8.1 (Berkeley) 6/4/93";
36#endif /* LIBC_SCCS and not lint */
37#include <sys/cdefs.h>
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 21 unchanged lines hidden (view full) ---

30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)gethostname.c 8.1 (Berkeley) 6/4/93";
36#endif /* LIBC_SCCS and not lint */
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/lib/libc/gen/gethostname.c 92986 2002-03-22 21:53:29Z obrien $");
38__FBSDID("$FreeBSD: head/lib/libc/gen/gethostname.c 119140 2003-08-19 20:38:44Z wollman $");
39
40#include <sys/param.h>
41#include <sys/sysctl.h>
42
39
40#include <sys/param.h>
41#include <sys/sysctl.h>
42
43#include <errno.h>
44
43int
44gethostname(name, namelen)
45 char *name;
45int
46gethostname(name, namelen)
47 char *name;
46 int namelen;
48 size_t namelen;
47{
48 int mib[2];
49{
50 int mib[2];
49 size_t size;
50
51 mib[0] = CTL_KERN;
52 mib[1] = KERN_HOSTNAME;
51
52 mib[0] = CTL_KERN;
53 mib[1] = KERN_HOSTNAME;
53 size = namelen;
54 if (sysctl(mib, 2, name, &size, NULL, 0) == -1)
54 if (sysctl(mib, 2, name, &namelen, NULL, 0) == -1) {
55 if (errno == ENOMEM)
56 errno = ENAMETOOLONG;
55 return (-1);
57 return (-1);
58 }
56 return (0);
57}
59 return (0);
60}