awk: fix typo in atan2 code. closes bug 5594.

- fix ip route rejecting dotted quads as prefix
- adjust error message for wrong prefix not to mention address
  Previously e.g. ip route add 127.0.0.0/255.0.0.0 dev dummy0
  was rejected, saying
ip: an inet address is expected rather than "127.0.0.0/255.0.0.0"

function                                             old     new   delta
get_prefix_1                                         201     309    +108
get_prefix                                            55      73     +18
get_addr                                              55      73     +18
get_addr32                                            48      58     +10
get_addr_1                                           249     204     -45
.rodata                                           114569  114524     -45
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/2 up/down: 154/-90)            Total: 64 bytes

getopt: reinstate erroneously removed getopt() reset code.

vi: handle chars 0x80, 0x81... correctly

dc: conditionalize parts which require libm

ash: fix NOEXEC mode - we were forgetting to pass environment!
env: promote to NOEXEC
hd: promote to NOEXEC, as hexdump is NOEXEC already

ash: fix a bug in standalone mode (corrupted getopt() state)

add comment explaining previous change

volume identification: abolish /proc/partitions and /proc/cdroms
scanning. It does not catch volume managers and such.
Adding even more cruft is bad, so I decided to simply
scan /dev/* for any block devices. See how much better
it finds devices now:

# ./busybox_old blkid
/dev/sda1: LABEL="/boot" UUID="7931e231-dcb4-4b6d-9301-f7354ae24061"
/dev/dm-0: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/dm-1: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/sdb1: UUID="6F84-ED0F"

# ./busybox blkid
/dev/sdb1: UUID="6F84-ED0F"
/dev/root: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/dm-1: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/dm-0: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/sda1: LABEL="/boot" UUID="7931e231-dcb4-4b6d-9301-f7354ae24061"
/dev/mapper/VolGroup00-LogVol01: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/mapper/VolGroup00-LogVol00: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"

function                                             old     new   delta
static.drive_name_string                              12       -     -12
append_mount_options                                 205     190     -15
volume_id_open_node                                   37      18     -19
uuidcache_check_device                               485     257    -228
uuidcache_init                                       637      36    -601
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/4 up/down: 0/-875)           Total: -875 bytes
   text    data     bss     dec     hex filename
 792218     592    6648  799458   c32e2 busybox_old
 791260     592    6648  798500   c2f24 busybox_unstripped

blkid: vda forgot to svn add it again. vda is stupid

Comment and whitespace tweaks.

vi: explain why reading 4 chars is unsafe

libbb: do not reject floating point strings like ".15"

mount: -o parm1 -o parm2 should accumulate

vi: whitespace fix

cpio: fix regression in prev commit (harmless)

data_extract_all: do not complain if directory exists on mkdir
rpm/cpio: move "20653 blocks" printout from get_header_cpio to cpio_main -
rpm doesn't want to have that

rpm: fix incompatibilities which prevented rpm -i foo.src.rpm

function                                             old     new   delta
fileaction_setowngrp                                  57      89     +32

vi: a few trivial optimizations to keyboard reading code; bump timeout to 50s.

function                                             old     new   delta
edit_file                                            901     912     +11
count_lines                                           74      72      -2
readit                                               306     289     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 11/-19)             Total: -8 bytes

Confirmed that on Linux the serial interrupt takes precedence over the timer
interrupt, so we don't need to worry about scheduler delays.  This means the
delay can be trimmed down to 25 miliseconds.  Add comment while at it.

build system: dpkg needs .gz handling

sysctl: sysctl -a was still misbehaving, fix it

return accidentally deleted "/* vi: set sw=4 ts=4: */"

sysctl: fix bug 3894 _for real_.

sysctl: remove trivial comments. no code changes

sysctl: remove special-cased reporting of EPERM,
 common code path gives nearly the same message. -50 bytes

sysctl: fix bug 3894 (by Kryzhanovskyy Maksym)

function                                             old     new   delta
sysctl_dots_to_slashes                                 -      47     +47
sysctl_write_setting                                 310     298     -12
sysctl_read_setting                                  296     284     -12
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 47/-24)             Total: 23 bytes

vi: fix bizarre formatting. no code changes

hush: add TODO

hush: next small step towards functions

fix recurring "last_cmd overrun", fix [del] handling in insert mode

vi: trivial size optimization -65 bytes

vi: reinstate timeout of 300 ms

vi: add comments to Rob's algorithm of reading and matching ESC sequences
 (nice work btw!)

Escape sequences sent over serial links don't come in as a block, so poll
needs to pause a bit to make sure the next character has time to come in.

Clean up editors/vi.c:readit() so it only does readahead when actually
parsing an escape sequence.  (This mitigates but doesn't fully fix the
the "cursoring around the file deletes data under qemu" bug, presumably due
to "\033[D" being treated as three separate characters.)

hush: fix NOMMU bug (analogous to preceding commit for MMU)

testcase for the last fix

hush: fix trashing of environment by local env vars:
  a=a; a=b cmd; - a was unset!
  +57 bytes

function                                             old     new   delta
add_string_to_strings                                  -     110    +110
putenv_all                                             -      27     +27
run_list                                            2086    2111     +25
free_strings                                           -       7      +7
free_pipe                                            210     208      -2
add_malloced_string_to_strings                       110       -    -110
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 1/1 up/down: 169/-112)           Total: 57 bytes

blkid: new applet. We almost had everything needed for it already

function                                             old     new   delta
display_uuid_cache                                     -      89     +89
blkid_main                                             -       8      +8
applet_names                                        1871    1877      +6
applet_main                                         1140    1144      +4
applet_nameofs                                       570     572      +2
packed_usage                                       24737   24735      -2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/1 up/down: 109/-2)            Total: 107 bytes

findfs: fix LUKS and FAT detection routines; do not exit if corrupted
 FAT fs makes us try to seek past volume

function                                             old     new   delta
volume_id_get_buffer                                 301     327     +26
volume_id_probe_luks                                  79      82      +3
get_attr_volume_id                                    73      65      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 29/-8)              Total: 21 bytes

zcip: code size optimizations, improved help text and comments

function                                             old     new   delta
packed_usage                                       24750   24787     +37
run                                                  658     655      -3
pick                                                  40      34      -6
arp                                                  186     177      -9
zcip_main                                           1402    1356     -46
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/4 up/down: 37/-64)            Total: -27 bytes

hush: fix environment and memory leaks, add tests for them

function                                             old     new   delta
add_malloced_string_to_strings                         -     110    +110
run_list                                            1999    2086     +87
free_strings_and_unsetenv                              -      87     +87
hush_version_str                                       -      18     +18
pseudo_exec_argv                                     139     146      +7
static.version_str                                    17       -     -17
free_pipe                                            237     210     -27
done_word                                            790     642    -148
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 2/2 up/down: 309/-192)          Total: 117 bytes

unzip: remove example of a file we now can handle

hush: preparatory work for implementing functions

hush: massive renaming of ill-named structures and fields
hush: error out on constructs like:
 $ abc(def) - was working as if it was (abcdef)
 $ case b in abc(a|(b) echo YES; esac - was ignoring 'abc' and extra '('

- route metric support (Natanael Copa)
  Adds about 75b

- add some anchors

ash: support &> redirection (bashism). ~90 bytes of code

ash: some beautification work, no code changes

ash: implement ">&file" bashism. ~100 bytes.

watchdog: WDIOC_SETTIMEOUT accepts seconds, not milliseconds
klogd: handle many lines at once, by Steve Bennett (steveb AT workware.net.au)

- wrap overlong line

grep: fix 'echo aaa | grep -o a' + ENABLE_EXTRA_COMPAT case
 by Natanael Copa

inetd: use config parser. by Vladimir

function                                             old     new   delta
reread_config_file                                  1092    2154   +1062
next_line                                             98      33     -65
next_word                                            197      57    -140
parse_one_line                                      1202       -   -1202
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 1062/-1407)       Total: -345 bytes

route: fix for 64-bit BE machines by Seonghun Lim (wariua AT gmail.com)

website: announce 1.12.1 and 1.11.3

scripts/randomtest[.loop]: add scripts for randomconfig testing

showkey: suppress gcc warning

sendmail: update by Vladimir

remove redundant NULL check

more style fixes, no code changes

style fixes, no code changes

sendmail: compat update by Vladimir

function                                             old     new   delta
sendgetmail_main                                    1889    2091    +202
putchar_unlocked                                       -      43     +43
putchar                                                -      43     +43
packed_usage                                       24868   24910     +42
smtp_checkp                                          102     111      +9
uuencode                                             235     227      -8
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/1 up/down: 339/-8)            Total: 331 bytes

lineedit: fix problems with empty commands in history

start_stop_daemon: accept (and ignore) -R <param>

udhcp: add inline docs; small code shrink

function                                             old     new   delta
send_packet                                          103      87     -16
udhcpc_main                                         2359    2323     -36

udhcpc: fixlet for previous commit

udhcp: added some FIXMEs; code shrink. -49 bytes

Markus Heidelberg writes:
* document --nicelevel in Config.in
* usage: --verbose is the fancy option, not --quiet

- add less -I to be able to search case-insensitively
  +17b, but the helptext is quite elaborate, thus:
function                                             old     new   delta
.rodata                                           118995  119032     +37
packed_usage                                       24731   24767     +36
regex_process                                        284     300     +16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 89/0)               Total: 89 bytes

- commentary typo fix

nmeter: 4k buffers are too small for /proc files,
 make them dynamically sized with 16k upper limit. +75 bytes

libpwdgrp: make it coexist with <pwd.h>, <grp.h> and <shadow.h>.
 allows to get rid of hacks in libbb.h (extra declaration of setgroups -
 now it comes from grp.h as intended).

dhcp: add FAST_FUNC as appropriate. -160 bytes.

dhcpc: treat "discover...select...discover..." loop the same way
 as "discover...discover...discover..."

fix usage text - s/USE_GETOPT_LONG/USE_FEATURE_xxxLONG_OPTIONS/
 by Markus Heidelberg (markus.heidelberg AT web.de)

- add dpkg -l <packagepattern> (Peter Korsgaard)

- update my name. No obj-code changes ;)

- improve helptext

top: fix "top -d 1" (bug 5144)

top: don't lie in help screen about "-d 1" being valid

top: fixes to prev commit: '1' should toggle SMP view too;
 "cpu ..." line should be parsed unconditionally
top: do not truncate loadavg string. More info -> better

- fix compilation on OSF/1

top: optional SMP support by Vineet Gupta (vineetg76 AT gmail.com)

df: unsigned long needs %lu

whitespace fixes

return setgroups() decl to libbb, it is needed if we use libpwdgrp.

we dont provide setgroups() replacement, so dont provide the prototype either ... especially since it conflicts on some systems (like Darwin)

runsvdir: conditionalize "log in argiment" (mis)feature. By Vladimir.
 with:
runsv                                                139     141      +2
runsvdir_main                                       1583    1513     -70

 without:
warn2_cannot                                          14      27     +13
runsv                                                139     141      +2
warnx                                                 28      16     -12
warn3x                                                23       -     -23
runsvdir_main                                       1583    1125    -458

crontab: do not destroy STDIN_FILENO, editor may need it (crontab -e)
vi: deal with EOF/error on stdin and with input NULs

function                                             old     new   delta
crontab_main                                         623     642     +19
edit_file                                            901     906      +5
readit                                               331     318     -13

unzip: handle "central directory"
 needed for OpenOffice, gmail attachment .zips etc
 conditional on CONFIG_DESKTOP

function                                             old     new   delta
unzip_main                                          1643    1939    +296
find_cds_offset                                        -     173    +173
unzip_skip                                            11      16      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 474/0)             Total: 474 bytes

setfont: use ioctl(KDFONTOP), it honours -C tty

init: set stderr to NONBLOCK
*: s/setenv(a,b,1)/xsetenv(a,b)/

function                                             old     new   delta
init_main                                            856     895     +39
message                                              146     144      -2
crond_main                                          1418    1416      -2
run                                                  661     658      -3
zcip_main                                           1409    1403      -6
edit_file                                            910     901      -9
environment                                           20       -     -20

webpage: add "RD129 embedded board from ELPA" to product page
 split it into "projects" (software) and "products" (hardware) parts

website: add a product using bbox - EMTEC MovieCube R700

libbb: document that we maybe will want to understand \e someday
 (no code changes)

grep: yet another fixlet for EXTRA_COMPAT

grep: fix EXTRA_COMPAT grep to honor -E and -i

setfont: small fixes from Vladimir