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Prevent getty(8) from looping indefinitely if the device node doesn't

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exist. This behaviour makes no sense for eg USB serial adapters, or
USB device-side serial templates.

This mostly reverts to pre-r135941 behaviour.

Reviewed by:	imp@
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D14198
This commit is contained in:
Edward Tomasz Napierala 2018-02-25 20:15:06 +00:00
parent 615395d985
commit 170430d505
1 changed files with 4 additions and 2 deletions
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6
libexec/getty/main.c
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@ -427,15 +427,17 @@ main(int argc, char *argv[])
static int
opentty(const char *tty, int flags)
{
int i;
int failopenlogged = 0;
int failopenlogged = 0, i, saved_errno;
while ((i = open(tty, flags)) == -1)
{
saved_errno = errno;
if (!failopenlogged) {
syslog(LOG_ERR, "open %s: %m", tty);
failopenlogged = 1;
}
if (saved_errno == ENOENT)
return 0;
sleep(60);
}
if (login_tty(i) < 0) {