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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* Copyright (C) 2001-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2001
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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int
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__gethostname (char *name, size_t len)
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{
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int result;
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result = INLINE_SYSCALL (gethostname, 2, name, len);
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if (result == 0
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/* See whether the string is terminated. If not we will return
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an error. */
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&& memchr (name, '\0', len) == NULL)
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{
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__set_errno (EOVERFLOW);
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result = -1;
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}
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return result;
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}
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weak_alias (__gethostname, gethostname)
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