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openvt,getty,vfork_daemon_rexec,mount: tighten up fd cleanup code

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(will close all fd's > 2 on daemonization now)
getty: fix "getty -" support, and also do not try to chown/chmod "-"
telnetd: fix "lost ctty" bug
Yet another attempt on saner function names:
bb_sanitize_server_stdio(0/1) -> bb_sanitize_stdio() + bb_daemonize();
This commit is contained in:
Denis Vlasenko
2007-01-19 21:19:35 +00:00
parent f8c11aa65d
commit 9af7c9d6b6
15 changed files with 57 additions and 54 deletions
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12
libbb/xfuncs.c
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@ -509,7 +509,7 @@ void xdaemon(int nochdir, int noclose)
}
#endif
void bb_sanitize_server_stdio(int daemonize)
void bb_sanitize_stdio_maybe_daemonize(int daemonize)
{
int fd;
/* Mega-paranoid */
@ -523,8 +523,8 @@ void bb_sanitize_server_stdio(int daemonize)
if (pid) /* parent */
exit(0);
/* child */
setsid();
/* if daemonizing, make sure we detach from stdio */
setsid();
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
@ -532,6 +532,14 @@ void bb_sanitize_server_stdio(int daemonize)
while (fd > 2)
close(fd--); /* close everything after fd#2 */
}
void bb_sanitize_stdio(void)
{
bb_sanitize_stdio_maybe_daemonize(0);
}
void bb_daemonize(void)
{
bb_sanitize_stdio_maybe_daemonize(1);
}
// Die with an error message if we can't open a new socket.
int xsocket(int domain, int type, int protocol)