upstream: Check fd against >=0 instead of >0 in error path. The
dup could in theory return fd 0 although currently it doesn't in practice. From Dmitry Belyavskiy vi github PR#238. OpenBSD-Commit-ID: 4a95f3f7330394dffee5c749d52713cbf3b54846
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@ -1,4 +1,4 @@
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/* $OpenBSD: monitor_wrap.c,v 1.127 2023/03/30 00:49:37 dtucker Exp $ */
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/* $OpenBSD: monitor_wrap.c,v 1.128 2023/03/31 00:44:29 dtucker Exp $ */
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/*
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* Copyright 2002 Niels Provos <provos@citi.umich.edu>
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* Copyright 2002 Markus Friedl <markus@openbsd.org>
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@ -575,7 +575,7 @@ mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, size_t namebuflen)
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if ((tmp1 = dup(pmonitor->m_recvfd)) == -1 ||
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(tmp2 = dup(pmonitor->m_recvfd)) == -1) {
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error_f("cannot allocate fds for pty");
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if (tmp1 > 0)
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if (tmp1 >= 0)
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close(tmp1);
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return 0;
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}
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