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-rw-r--r--bin/sh/eval.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/bin/sh/eval.c b/bin/sh/eval.c
index b0ee28e..b19c24f 100644
--- a/bin/sh/eval.c
+++ b/bin/sh/eval.c
@@ -552,7 +552,8 @@ evalpipe(union node *n)
if (prevfd >= 0)
close(prevfd);
prevfd = pip[0];
- close(pip[1]);
+ if (pip[1] != -1)
+ close(pip[1]);
}
INTON;
if (n->npipe.backgnd == 0) {
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