1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
--- busybox-1.19.2/networking/inetd.c
+++ busybox-1.19.2-inetd/networking/inetd.c
@@ -1278,6 +1278,7 @@ int inetd_main(int argc UNUSED_PARAM, ch
sep->se_count = 0;
rearm_alarm(); /* will revive it in RETRYTIME sec */
restore_sigmask(&omask);
+ maybe_close(new_udp_fd);
maybe_close(accepted_fd);
continue; /* -> check next fd in fd set */
}
@@ -1298,17 +1299,18 @@ int inetd_main(int argc UNUSED_PARAM, ch
bb_perror_msg("vfork"+1);
sleep(1);
restore_sigmask(&omask);
+ maybe_close(new_udp_fd);
maybe_close(accepted_fd);
continue; /* -> check next fd in fd set */
}
if (pid == 0)
pid--; /* -1: "we did fork and we are child" */
}
- /* if pid == 0 here, we never forked */
+ /* if pid == 0 here, we didn't fork */
if (pid > 0) { /* parent */
if (sep->se_wait) {
- /* tcp wait: we passed listening socket to child,
+ /* wait: we passed socket to child,
* will wait for child to terminate */
sep->se_wait = pid;
remove_fd_from_set(sep->se_fd);
@@ -1345,9 +1347,13 @@ int inetd_main(int argc UNUSED_PARAM, ch
setsid();
/* "nowait" udp */
if (new_udp_fd >= 0) {
- len_and_sockaddr *lsa = xzalloc_lsa(sep->se_family);
+ len_and_sockaddr *lsa;
+ int r;
+
+ close(new_udp_fd);
+ lsa = xzalloc_lsa(sep->se_family);
/* peek at the packet and remember peer addr */
- int r = recvfrom(ctrl, NULL, 0, MSG_PEEK|MSG_DONTWAIT,
+ r = recvfrom(ctrl, NULL, 0, MSG_PEEK|MSG_DONTWAIT,
&lsa->u.sa, &lsa->len);
if (r < 0)
goto do_exit1;
|
