24 lines
901 B
C
24 lines
901 B
C
/* Test whether a file descriptor is a pipe.
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Copyright (C) 2006-2022 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 3 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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/* Whether pipes are FIFOs; -1 if not known. */
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#ifndef HAVE_FIFO_PIPES
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# define HAVE_FIFO_PIPES (-1)
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#endif
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int isapipe (int fd);
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