reviving libbusybox, adding CONFIG_INDIVIDUAL part 2

reviving libbusybox, adding CONFIG_INDIVIDUAL part 1

- mark TODO: use index_in_str_array()

chpst: fix whitespace damage
svlogd: fix bug (two different "line" variables); stop using data/bss

function                                             old     new   delta
processorstop                                        419     432     +13
rotate                                               514     525     +11
buffer_pwrite                                        493     499      +6
sig_term_handler                                      68      70      +2
sig_hangup_handler                                    34      36      +2
sig_alarm_handler                                     34      36      +2
rmoldest                                             305     307      +2
processorstart                                       401     403      +2
logdir_close                                         188     190      +2
tmaxflag                                               1       -      -1
rotateasap                                             1       -      -1
repl                                                   1       -      -1
reopenasap                                             1       -      -1
linecomplete                                           1       -      -1
exitasap                                               1       -      -1
wstat                                                  4       -      -4
verbose                                                9       5      -4
replace                                                4       -      -4
nearest_rotate                                         4       -      -4
linemax                                                4       -      -4
linelen                                                4       -      -4
line                                                   4       -      -4
fndir                                                  4       -      -4
fl_flag_0                                              4       -      -4
fdwdir                                                 4       -      -4
dirn                                                   4       -      -4
dir                                                    4       -      -4
blocked_sigset                                         4       -      -4
sig_child_handler                                    248     239      -9
logdirs_reopen                                      1263    1240     -23
buffer_pread                                         532     473     -59
svlogd_main                                         1466    1367     -99
------------------------------------------------------------------------------
(add/remove: 0/18 grow/shrink: 9/5 up/down: 42/-248)         Total: -206 bytes
   text    data     bss     dec     hex filename
 770916     989    9496  781401   bec59 busybox_old
 770768     980    9448  781196   beb8c busybox_unstripped

chpst: stop using data/bss

function                                             old     new   delta
chpst_main                                          1066    1089     +23
set_user                                               4       -      -4
root                                                   4       -      -4
nicelvl                                                4       -      -4
limitt                                                 4       -      -4
limits                                               196     192      -4
limitr                                                 4       -      -4
limitp                                                 4       -      -4
limito                                                 4       -      -4
limitl                                                 4       -      -4
limitf                                                 4       -      -4
limitd                                                 4       -      -4
limitc                                                 4       -      -4
limita                                                 4       -      -4
env_user                                               4       -      -4
env_dir                                                4       -      -4
------------------------------------------------------------------------------
(add/remove: 0/14 grow/shrink: 1/1 up/down: 23/-60)           Total: -37 bytes
   text    data     bss     dec     hex filename
 770892    1029    9520  781441   bec81 busybox_old
 770916     989    9496  781401   bec59 busybox_unstripped

stat: code shrink; stop using bss; stop using strncat incorrectly

function                                             old     new   delta
printfs                                                -      28     +28
strcatc                                                -      26     +26
human_time                                            41      44      +3
print_it                                             229     219     -10
buf                                                   30       -     -30
print_statfs                                         420     358     -62
print_stat                                          1089     921    -168
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 1/3 up/down: 57/-270)          Total: -213 bytes
   text    data     bss     dec     hex filename
 771105    1029    9552  781686   bed76 busybox_old
 770892    1029    9520  781441   bec81 busybox_unstripped

delete now unused check_header_gzip.c
sum: do not use uintmax needlessly

tail: sizeof(buf) is sizeof(char*)! must be BUFSIZ

add tests for gunzip

gunzip: support concatenated gz files.

   text    data     bss     dec     hex filename
 770988    1029    9552  781569   bed01 busybox.t0/busybox
 771105    1029    9552  781686   bed76 busybox.t3/busybox

tail: work correctly on /proc files (Kazuo TAKADA <kztakada@sm.sony.co.jp>)

logger: fix a problem of losing all argv except first

- ditch 2 bytes

printf("%s\n") -> puts()

'simple' error message functions by Loic Grenie <loic.grenie@gmail.com>.
263 bytes saved.

hush: fix glob() abuse. Code was making unfounded assumptions how
glob() works, and it broke horribly on specific uclibc config.

hush: int->smallint for flag vars; make some names more "greppable"

hush: feeble attempt at making it more NOMMU-friendly

hush: stop doing manual acounting of open fd's, kernel can do it for us

introduce and use close_on_exec_on(fd). -50 bytes.

move udhcp_{client/server}_config to common_bufsiz1

udhcp_run_script                                    1108    1151     +43
init_packet                                          209     210      +1
udhcpc_main                                         2395    2393      -2
udhcp_client_config                                   56       -     -56
udhcp_server_config                                   88       -     -88
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/1 up/down: 44/-146)          Total: -102 bytes
   text    data     bss     dec     hex filename
 771326    1029    9696  782051   beee3 busybox_old
 771383    1029    9552  781964   bee8c busybox_unstripped

dhcpreplay: code shrink, -40 bytes

fixlet to pgrep/pkill

print_signames_and_exit -> print_signames (because of "ash calls kill_main")

replace printf with fputs where appropriate

libiproute: add missing break's

announce 1.7.2 on the website

small code shrink

build system: pass EXTRA_LDFLAGS to final link stage

trivial typo fix

pgrep,pkill: new applets by Loic Grenie <loic.grenie@gmail.com>

xrealloc_getcwd_or_warn: smaller cod and less wasted RAM at run time

remove if() which is always true

bunzip2: trim verbose messages

   text    data     bss     dec     hex filename
 770752    1029    9696  781477   beca5 busybox_old
 770691    1029    9696  781416   bec68 busybox_unstripped

httpd: trivial simplification

more "if (p) free(p)" fixes; fix a typo in comment

fix "if (p) free(p)" constructs

remove stray semicolon

hdparm: paranoia-induced fix against theoretical div-by-0 case

hdparm: more robust (re overflows) code. +38 bytes.

trivial fix in setfiles. spotted by Yuichi Nakamura <ynakam@hitachisoft.jp>

hdparm: reduce possibility of numeric overflow in -T.

do_time                                              386     410     +24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 24/0)               Total: 24 bytes

assorted static vars removal

function                                             old     new   delta
tcpudpsvd_main                                      1829    1839     +10
update_status                                        567     569      +2
sigterm                                                1       -      -1
.........
dhcprelay_signal_handler                               8       -      -8
nfs_strerror                                          60      49     -11
singlemount                                         4579    4564     -15
static.p                                              16       -     -16
svstatus                                              20       -     -20
dhcprelay_xid_list                                    32       -     -32
runsv_main                                          1785    1746     -39
static.buf                                            74      28     -46
svd                                                   56       -     -56
dhcprelay_main                                      1141    1080     -61
------------------------------------------------------------------------------
(add/remove: 0/20 grow/shrink: 2/10 up/down: 12/-386)        Total: -374 bytes

hdparm: simplify timing measurement (it wa the last last user
of setitimer in the tree).

static.thousand                                       16       -     -16
read_big_block                                        81      46     -35
getitimer                                             41       -     -41
setitimer                                             47       -     -47
__GI_setitimer                                        47       -     -47
do_time                                              480     386     -94
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 0/2 up/down: 0/-280)           Total: -280 bytes

M    miscutils/hdparm.c

hdparm: get rid of static variables

process_dev                                         5309    5311      +2
unregister_hwif                                        1       -      -1
...........
Xreadahead                                             4       -      -4
seek_to_zero                                          25      17      -8
hdparm_main                                         1242    1227     -15
do_time                                              547     480     -67
------------------------------------------------------------------------------
(add/remove: 0/83 grow/shrink: 1/3 up/down: 2/-248)          Total: -246 bytes

libbb: make const_int_0 reside in rodata

libbb: align bb_common_bufsiz1 to "long long"

less: make 'f' page forward

wget: -O FILE is allowed to overwrite existing file (compat)

zcip: fix unaligned trap on ARM

remove stray '/*' within comment

hdparm: use fixed fd #3 for device being interrogated
(surprisingly, on i386 almost no code size change)

introduce bb_putchar(). saves ~1800 on uclibc (less on glibc).

style and message text fixes

lineedit: plug memory leak

vlock: get rid of statics

introduce safe_poll (fixes a problem in top)

function                                             old     new   delta
safe_poll                                              -      77     +77
svlogd_main                                         1470    1466      -4
zcip_main                                           1530    1524      -6
forkexec                                            1345    1338      -7
decode_format_string                                 795     788      -7
collect_blk                                          474     467      -7
buffer_pread                                         540     532      -8
tftp                                                1182    1172     -10
microcom_main                                        763     749     -14
arpping                                              441     424     -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/9 up/down: 77/-80)             Total: -3 bytes
   text    data     bss     dec     hex filename
 770162    1034   10404  781600   bed20 busybox_old
 770158    1034   10404  781596   bed1c busybox_unstripped

make variables static

check-lxdialog.sh: no point in giving up, maybe -lcurses will work?

load_policy: update (Yuichi Nakamura <ynakam@hitachisoft.jp>)

chcon: trivial fix

losetup: support -f (Loic Grenie <loic.grenie@gmail.com>)

function                                             old     new   delta
losetup_main                                         238     278     +40
packed_usage                                       23021   23027      +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 46/0)               Total: 46 bytes

runsvdir: fix "linear wait time" bug

inetd: move struct fields around -> save .25 k of code

function                                             old     new   delta
freeconfig                                            75      76      +1
register_rpc                                         200     196      -4
dupconfig                                            165     159      -6
reapchild                                            173     166      -7
retry                                                 93      82     -11
goaway                                               112     101     -11
getconfigent                                        1241    1222     -19
setup                                                645     592     -53
inetd_main                                          2160    2107     -53
config                                              1602    1518     -84
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/9 up/down: 1/-248)           Total: -247 bytes
   text    data     bss     dec     hex filename
 773951    1038   10332  785321   bfba9 busybox_old
 773703    1038   10332  785073   bfab1 busybox_unstripped

install: fix bug in "install -c file dir" (tries to copy dir into dir too)
install: 'support' (ignore) -v and -b

documentation bits in comments, no code changes

cp: -r and -R imply -d (coreutils compat)

httpd: small auth and IPv6 fixes (Kim B. Heino <Kim.Heino@bluegiga.com>)

ed: large cleanup

function                                             old     new   delta
bad_nums                                               -      43     +43
skip_blank                                             -      24     +24
getNum                                               557     578     +21
insertLine                                           159     163      +4
setCurNum                                             31      33      +2
lastNum                                                4       -      -4
fileName                                               4       -      -4
dirty                                                  4       -      -4
curNum                                                 4       -      -4
curLine                                                4       -      -4
bufUsed                                                4       -      -4
bufSize                                                4       -      -4
bufPtr                                                 4       -      -4
bufBase                                                4       -      -4
printLines                                           357     345     -12
findLine                                             165     152     -13
lines                                                 16       -     -16
deleteLines                                          203     144     -59
readLines                                            538     473     -65
addLines                                             163      87     -76
marks                                                104       -    -104
termEdit                                             140       -    -140
ed_main                                             3125    2654    -471
------------------------------------------------------------------------------
(add/remove: 2/12 grow/shrink: 3/6 up/down: 94/-992)         Total: -898 bytes
   text    data     bss     dec     hex filename
 771142    1034   10564  782740   bf194 busybox_old
 770265    1034   10404  781703   bed87 busybox_unstripped

# size */ed.o
   text    data     bss     dec     hex filename
   6370       0     156    6526    197e editors.org/ed.o
   5505       0       0    5505    1581 editors/ed.o

insmod: fix help text to not show options if only 2.6 was selected

insmod: shorten message text; style fixes

tar: add a comment about previous subtle fix

tar: strip leading '/' BEFORE memorizing hardlink's name

function                                             old     new   delta
writeFileToTarball                                  1362    1352     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-10)             Total: -10 bytes

ash: fix prompt expansion (Natanael Copa <natanael.copa@gmail.com>)

*: kill bb_get_last_path_component, replace with two functions
(one which strips trailing slash and one which does not)
wget: straighten out as a result of above change
   text    data     bss     dec     hex filename
   5056       1       0    5057    13c1 busybox.t4/networking/wget.o
   5022       0       0    5022    139e busybox.t5/networking/wget.o

wget: get rid of setitimer
   text    data     bss     dec     hex filename
   5110       1       0    5111    13f7 busybox.t3/networking/wget.o
   5056       1       0    5057    13c1 busybox.t4/networking/wget.o

wget: reorder functions, no code changes

wget: code shrink, move data out of bss

wget: allow dots in header field names.
wget: code shrink

function                                             old     new   delta
gethdr                                               211     190     -21
wget_main                                           2609    2557     -52
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-73)             Total: -73 bytes

inetd: make some fields smaller, move data out of data/bss sections

function                                             old     new   delta
inetd_main                                          2125    2160     +35
setup                                                640     645      +5
initring                                              48      53      +5
reapchild                                            169     173      +4
retry                                                 92      93      +1
goaway                                               113     112      -1
inetd_setproctitle                                   175     173      -2
chargen_dg                                           229     227      -2
uid                                                    4       -      -4
.......................
Argv                                                   4       -      -4
rlim_ofile_cur                                         8       -      -8
config                                              1610    1602      -8
rlim_ofile                                            16       -     -16
getconfigent                                        1271    1241     -30
builtins                                             176     132     -44
ring                                                 128       -    -128
allsock                                              128       -    -128
------------------------------------------------------------------------------
(add/remove: 0/18 grow/shrink: 5/6 up/down: 50/-423)         Total: -373 bytes
   text    data     bss     dec     hex filename
 774144    1051   10708  785903   bfdef busybox_old
 774108    1039   10380  785527   bfc77 busybox_unstripped
$ size inetd.o inetd_orig.o
   text    data     bss     dec     hex filename
   9027       0       0    9027    2343 inetd.o
   9064      12     324    9400    24b8 inetd_orig.o

run_parts: make it sort executables by name (required by API)

make fdisk compile on libc without llseek64

httpd: simplify CGI i/o loop. -200 bytes.

include libbb.h, not busybox.h

- actually mv microcom.c to miscutils

- add microcom to defconfig

move microcom to miscutils

- remove some trailing whitespace

microcom: add copyright/license info

ash: remove erroneously applied patch

httpd: optional support for partial downloads

ash: s/int/smallint/. -60 bytes.

test: correct confusing placement of "const"

microcom: add new applet, this time for real

microcom: new applet by Vladimir Dronnikov <dronnikov@gmail.ru>

update Glenn McGrath's email address

remove stray 8-bit chars from copyright banner

announce 1.7.1 on website

httpd: do not clear environment
mount: mount helpers support (by Vladimir Dronnikov <dronnikov@gmail.ru>)

webpage: add a link to vda's "init must die" page