Hi,
run-command.c has
for (sig = 1; sig < NSIG; sig++) {
/* ignored signals get reset to SIG_DFL on execve */
if (signal(sig, SIG_DFL) == SIG_IGN)
signal(sig, SIG_IGN);
}
introduced by commit 45afb1ca9c28 (run-command: block signals between
fork and execve).
However, 'man 7 signal' says
A child created via fork(2) inherits a copy of its parent's
signal dispositions. During an execve(2), the dispositions of
handled signals are reset to the default; the dispositions of
ignored signals are left unchanged.
So at least the comment is wrong, and the child is actually run with
those signals ignored. Whether that's the intent I cannot say, but I
doubt it; programs generally don't expect to be run with any signals
ignored.
Rasmus
