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ldpd: ignore the SIGHUP signal in the child processes

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Only the parent process should handle the SIGHUP signal, but we need
to make sure that this signal is ignored in the child processes so a
command like "killall -SIGHUP ldpd" won't kill ldpd.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2017-03-25 21:28:13 -03:00
parent 56b8a8d231
commit 1e7e440f5a
3 changed files with 10 additions and 1 deletions
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4
ldpd/lde.c
View File

@ -105,6 +105,10 @@ sigint(void)
static struct quagga_signal_t lde_signals[] =
{
{
.signal = SIGHUP,
/* ignore */
},
{
.signal = SIGINT,
.handler = &sigint,

4
ldpd/ldpe.c
View File

@ -87,6 +87,10 @@ sigint(void)
static struct quagga_signal_t ldpe_signals[] =
{
{
.signal = SIGHUP,
/* ignore */
},
{
.signal = SIGINT,
.handler = &sigint,

3
lib/sigevent.c
View File

@ -108,7 +108,8 @@ quagga_sigevent_process (void)
if (sig->caught > 0)
{
sig->caught = 0;
sig->handler ();
if (sig->handler)
sig->handler ();
}
}
}