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33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/* Determine name of the slave side of a pseudo-terminal.
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Copyright (C) 1998, 2002, 2010-2021 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <stdlib.h>
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/* Static buffer for 'ptsname'. */
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static char buffer[64];
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/* Return the pathname of the pseudo terminal slave associated with
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the master FD is open on, or NULL on errors.
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The returned storage is good until the next call to this function. */
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char *
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ptsname (int fd)
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{
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return ptsname_r (fd, buffer, sizeof (buffer)) != 0 ? NULL : buffer;
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}
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