docs/logging_and_backgrounding.txt: new mini-doc

dnsd: remove statics, remove nerly-useless SIGINT handler
crond: correct more of logfile to 0666 (as usual, umask allows
 user to remove unwanted bits).
nameif: print errors to stderr too, not just to syslog

function                                             old     new   delta
udhcp_read_interface                                 308     306      -2
ttl                                                    4       -      -4
fileconf                                               4       -      -4
dnsentry                                               4       -      -4
interrupt                                             19       -     -19
dnsd_main                                           1463    1394     -69
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 0/2 up/down: 0/-102)           Total: -102 bytes
   text    data     bss     dec     hex filename
 808161     476    7864  816501   c7575 busybox_old
 807994     468    7856  816318   c74be busybox_unstripped

1 files changed, 3 insertions, 1 deletions

diff --git a/networking/nameif.c b/networking/nameif.c
index 4d68c8d63..fb31fbfff 100644
--- a/networking/nameif.c
+++ b/networking/nameif.c
@@ -144,7 +144,9 @@ int nameif_main(int argc, char **argv)
 
         if (1 & getopt32(argv, "sc:", &fname)) {
                 openlog(applet_name, 0, LOG_LOCAL0);
-                logmode = LOGMODE_SYSLOG;
+                /* Why not just "="? I assume logging to stderr
+                 * can't hurt. 2>/dev/null if you don't like it: */
+                logmode |= LOGMODE_SYSLOG;
         }
         argc -= optind;
         argv += optind;