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Make sure we never pass a negative value to dup2(...)

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practicalswift
2018-03-19 09:21:45 +01:00
committed by Rusty Russell
parent 148aaa79d5
commit e56eee50c8
1 changed files with 1 additions and 0 deletions
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lightningd/subd.c
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@@ -30,6 +30,7 @@
static bool move_fd(int from, int to)
{
assert(from >= 0);
if (dup2(from, to) == -1)
return false;
close(from);