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e87b922655
* Drop an unnecessary variable and rename pidfd to procd. * Rewinding stdout serves no purpose, so stop doing it. * Don't bother freeing memory or setting the global status right before erroring out. * Error out if dup(2) or dup2(2) fail. * In the unlikely case that our pipe is equal to stdout, we need to record that information so we don't close it when cleaning up. * Don't bother closing a descriptor before dup2(2)ing to it. * Don't forget to close the the process descriptor after reaping the child process. PR: 266592 MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: kevans, markj Differential Revision: https://reviews.freebsd.org/D55112 (cherry picked from commit c3904a7de78ca1ca15fcdf4c09f9d4be7f6fe6f5)
33 lines
1.5 KiB
C
33 lines
1.5 KiB
C
/*-
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* Copyright (c) 2017 Baptiste Daroussin <bapt@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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struct pr {
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int ostdout;
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int procd;
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};
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struct pr *start_pr(char *file1, char *file2);
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void stop_pr(struct pr *);
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