inetd: comment why we redirect stderr to network

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/networking/inetd.c b/networking/inetd.c
index 031edc397..331c49441 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -1356,9 +1356,12 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
                                 if (setrlimit(RLIMIT_NOFILE, &rlim_ofile) < 0)
                                         bb_perror_msg("setrlimit");
                         closelog();
-                        xmove_fd(ctrl, 0);
-                        xdup2(0, 1);
-                        xdup2(0, 2);
+                        xmove_fd(ctrl, STDIN_FILENO);
+                        xdup2(STDIN_FILENO, STDOUT_FILENO);
+                        /* manpages of inetd I managed to find either say
+                         * that stderr is also redirected to the network,
+                         * or do not talk about redirection at all (!) */
+                        xdup2(STDIN_FILENO, STDERR_FILENO);
                         /* NB: among others, this loop closes listening socket
                          * for nowait stream children */
                         for (sep2 = serv_list; sep2; sep2 = sep2->se_next)