update seamless uncompression code

This change makes "tar tf hello_world.txz" work without
adding special-casing for ".txz" extension. It also removes
ever-growing magic checking code in rpm2cpio and get_header_tar -
we reuse one which lives in setup_unzip_on_fd.

function                                             old     new   delta
unpack_gz_stream                                       7     566    +559
check_signature16                                      -      70     +70
setup_unzip_on_fd                                     99     142     +43
handle_SIGCHLD                                         -      41     +41
unpack_bz2_stream                                    342     376     +34
unzip_main                                          2352    2385     +33
bbunpack                                             503     533     +30
open_transformer                                      74     102     +28
unpack_Z_stream                                     1278    1304     +26
unpack_gunzip                                        101     123     +22
init_transformer_aux_data                              -      18     +18
unpack_xz_stream                                    2388    2402     +14
open_zipped                                          131     141     +10
rpm_main                                            1358    1363      +5
get_header_tar_lzma                                   52      57      +5
get_header_tar_bz2                                    52      57      +5
unpack_lzma_stream                                  2698    2702      +4
hash_find                                            234     233      -1
get_header_tar                                      1759    1733     -26
get_header_tar_gz                                     92      57     -35
unpack_uncompress                                     51      12     -39
rpm2cpio_main                                        201     147     -54
unpack_unxz                                           67      12     -55
unpack_bz2_stream_prime                               55       -     -55
get_header_tar_Z                                      86       -     -86
unpack_gz_stream_with_info                           539       -    -539
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 14/6 up/down: 947/-890)          Total: 57 bytes

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

archival/libarchive/decompress_unzip.c -> decompress_gunzip.c. no code changes

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

preparatory cleanups for seamless uncompression improvements

unpack_gz_stream_with_info: fix buggy error check
man: fix possible accesses past the end of a string
move seamless uncompression helpers from read_printf.c to open_transformer.c

function                                             old     new   delta
show_manpage                                         153     212     +59
unpack_gz_stream_with_info                           520     539     +19

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

ssd: compat: match -x EXECUTABLE by /proc/pid/exe too

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

uudecode: tweak help text

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

uuencode: tweak help text

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

ntpd: fix a case when discipline_jitter = 0 if we step

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

cp: trim help text

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

du: trim help text a bit more

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

du: remove stray whitespace in help text

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

ntpd: experimental code to correct frequency a bit more aggressively

function                                             old     new   delta
update_local_clock                                   730     792     +62
recv_and_process_peer_pkt                            850     835     -15

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

blkid: if parameters are given, do not scan /dev

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

ntpd: fix the "are we a server" check in previous commit

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

ntpd: avoid printing messages between send and recv. good for fast networks

function                                             old     new   delta
ntpd_main                                            887     929     +42

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

ntpd: log clock drift with three digits after decimal point

+15 bytes.

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

ntpd: log jitter on update too; increase assumed clock precision x2 - to 2ms

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

date: extend help text to explain compat date format. Closes 4820

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

fbsplash: use line_length instead of xres * bytes_per_pixel

In some system (e.g. my "strange" device), line_length is not equal xres *
bytes_per_pixel, so we need to use line_length in scr_fix to mmap and draw
rectangle etc.

My "strange" device output this:
bytes_per_pixel: 4
xres: 600, yres: 1024
yoffset: 0, xoffset: 0, line_length: 2432
G.addr: b74da000

Signed-off-by: Yin Kangkai <kangkai.yin@intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

libbb/procps.c: make fast_strtoul_10() stop on '\n' too

This time for real :)

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

grep: support for -x, match whole line

Specified in POSIX.
http://pubs.opengroup.org/onlinepubs/009604499/utilities/grep.html

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

libbb/procps.c: make fast_strtoul_10() stop on '\n' too

This is needed for parsing /proc data on linux 2.4

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

du: use long long for size field

du has issues with files reporting large block counts on
32-bit systems with 4 byte longs.  From looking at the stat.c code, it
seems the preference is to use 'long long', rather than blkcnt_t.

function                                             old     new   delta
du                                                   420     444     +24
du_main                                              317     321      +4
print                                                 43      41      -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 28/-2)              Total: 26 bytes

Signed-off-by: Ian Wienand <ianw@vmware.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ntpd: fix offset adjustment after step; better step printing

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

ntpd: increase OPT_qq constant to not collide with -L

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

tar: add support for PAX-encoded path=LONGFILENAME

function                                             old     new   delta
get_header_tar                                      1478    1759    +281

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

mkdir: fix permissions on 64-bit platforms

sizeof(long) != sizeof(mode_t), this causes the compare in
bb_make_directory of (long)-1 != (mode_t)-1 to fail and mess up
the permissions of final directory by doing chmod((mode_t) -1).

Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ifupdown: support metric for static default gw

This is useful when you have multiple ISPs with failover. It allows
setting the priority of the static gateway and makes it possible
to specify multiple static gateways.

The ubuntu ifupdown supports it.

function                                             old     new   delta
.rodata                                           116725  116797     +72
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 72/0)               Total: 72 bytes
   text    data     bss     dec     hex filename
 953343    7313    8984  969640   ecba8 busybox_old
 953415    7313    8984  969712   ecbf0 busybox_unstripped

Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

httpd: make byte ranges which start at 0 work too. Closes 4766

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

modprobe-small: add comment about aliased commands' help text

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

depmod: supply help text

Signed-off-by: Lauri Kasanen <curaga@operamail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

getopt: trim help text

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

applets_sh/*: Add a few more examples of "shell applets"

Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

getopt: simple code shrink; expand help text

function                                             old     new   delta
packed_usage                                       28978   29184    +206
getopt_main                                          656     632     -24

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

Make unix (local) sockets work without IPv6 enabled

The xsocket_type() function had an optional "family" argument
that was enabled only if IPv6 is enabled. In the case of the
function was called with a valid AF_UNIX argument, and IPv6 is
disabled, this argument was silently ignored.

This patch makes the "family" argument mandatory, while keeping
the old behavior i.e., if AF_UNSPEC is passed, we try first IPv6
(if it's enabled) and fallback to IPv4.

Also I changed all callers of xsocket_type() to reflect its new
interface.

Signed-off-by: Jonh Wendell <jonh.wendell@vexcorp.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

mdev: add a comment. no code changes

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

acpid: do not install handlers for fatal signals

For acpid, it's ok to die at once.

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

cttyhack: handle multiple consoles found in sysfs

If multiple consoles are found from the sysfs file, cttyhack fails:

cttyhack: can't open '/dev/tty0 ttyS0': No such file or directory

In such cases take the last one as the kernel will use that one for
/dev/console.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

httpd: fix sendfile of files larger than 2 Gb. Closes 4754

When built with "sendfile" support, httpd was unable to send large files
(>2 GB) in one single connection, terminating it before the full file
has been sent.

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

tweak comment, no code changes

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

httpd: fix MD5-encrypted-in-httpd.conf password logic

function                                             old     new   delta
check_user_passwd                                    467     492     +25

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

modprobe: accept -b even if blacklist functionality is disabled

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

vi: add ":prev" command support

function                                             old     new   delta
colon                                               2844    2891     +47
vi_main                                              243     255     +12
text_yank                                             54      56      +2
refresh                                              780     774      -6

Signed-off-by: Dennis Groenen <tj.groenen@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

vi: move mark[i] pointers if text[] moves after realloc

While at it, optimized :s/find/repl/ a bit

function                                             old     new   delta
text_hole_make                                       120     150     +30
colon                                               2848    2844      -4

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

login: -f should not ask for password even with PAM

Signed-off-by: Sergey Naumov <sknaumov@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

init: add a segv debugging aid, disabled by default

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

gen_build_files.sh: exclude hidden directories

I am using quilt to manage patches internally. Quilt creates dir .pc
and stores unmodified files there. Since I made change in one of
Config.src quilt made a copy in .pc/xxx.patch/xxx/Config.src. When
I run make it calls gen_build_files.sh and it generates
.pc/xxx.patch/xxx/Config.in. Now when I want to pop patch quilt
thinks I have made changes to original xxx/Config.in.

IMO the best solution is just to ignore hidden directories in
gen_build_files.sh. This also results in shorter build time in case
busybox is under git/svn versioning, since it avoids searching
many directories for Config.src.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

mdev: fix wrong sizeof

Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

bootchartd: add process accounting feature

function                                             old     new   delta
bootchartd_main                                      962    1088    +126
finalize                                             294     357     +63
acct                                                   -      33     +33
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/0 up/down: 222/0)             Total: 222 bytes

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@mathembedded.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

find_mount_point: fix find_mount_point for char devices

This allows to find mount points of 'char' devices such as UBI volumes
which otherwise fail for example with 'df' command:

/ # df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root             72091984  12360980  56068924  18% /
devtmpfs                115236         4    115232   0% /dev
tmpfs                    28672        32     28640   0% /tmp
/dev/ubi0_0             360268     18348    341920   5% /tmp/mnt/userfs

/ # df /dev/ubi0_0
Filesystem           1K-blocks      Used Available Use% Mounted on
devtmpfs                115236         4    115232   0% /dev

Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

vconfig: fix help text; small code shrink. Closes 4658

function                                             old     new   delta
xfind_str                                             45      46      +1
vconfig_main                                         228     223      -5
packed_usage                                       28980   28954     -26

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

*: better comments on termios manipulations. No code changes.

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

shell_builtin_read: set cc[VMIN] to 1; lineedit: don't clear c_cc[VINTR]

First change fixes "read -n NUM". Apparently poll() won't report
data availability if cc[VMIN] > 1 until there are at least cc[VMIN] bytes.

function                                             old     new   delta
read_line_input                                     3885    3877      -8
shell_builtin_read                                  1097    1087     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-18)             Total: -18 bytes

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

sed: fix possible case of signed char bug; expand debugging printouts

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

mke2fs: do not zero out first kilobyte. Closes 3247

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

mdev: do not treat non-leading '#' chars as start of comment. Closes 4676

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

acpid: close fds which are reported as dead (POLLERR/POLLHUP/POLLNVAL) by poll.

function                                             old     new   delta
acpid_main                                          1159    1229     +70
packed_usage                                       28977   28980      +3

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

passwd,cryptpw: make default encryption algorithm configurable

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

Move include <shadow.h> close to pwd.h and grp.h includes

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

Move Adroid endgrent() and endpwent() NOPS to libbb.h

They should be after includes of pwd.h and grp.h

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

libpwdgrp/pwd_grp.c: use same static buffer for all getpwXX functions

This should save more than 0.5k of malloced memory in applets
which use those functions.

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

libpwdgrp/pwd_grp.c: set opened /etc/{passwd,group,shadow} fds CLOEXEC

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

platform.h: define endgrent() and endpwent() as no-ops on Android

Surprisingly, bionic libc seems to lack these functions.

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

libbb/bb_strtonum: always set end ptr, even on error return

function                                             old     new   delta
handle_errors                                         69      61      -8

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

kill: fix segfault in arguments parsing

Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ash: in standalone mode, search in $PATH if /proc/self/exe doesn't exist

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

makemime: tweak help text: -a HDR can be repeated

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

httpd: don't drop/abuse QUERY_STRING when /cgi-bin/index.cgi is used

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

wget: fix use-after-free on redirect

function                                             old     new   delta
wget_main                                           2153    2168     +15

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

libbb: remove is_directory's argument which is always NULL

function                                             old     new   delta
send_cgi_and_exit                                    892     890      -2
ln_main                                              447     445      -2
handle_incoming_and_exit                            2784    2780      -4
is_directory                                          66      59      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 2/-19)             Total: -15 bytes

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

httpd: remove redundant NULL assignment and save one strrchr. -8 bytes

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

udhcp: finish support of classless static routes (now the correct patch!)

Signed-off-by: Michael McTernan <Michael.McTernan.2001@cs.bris.ac.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

udhcp: finish support of classless static routes

function                                             old     new   delta
udhcp_str2optset                                     415     532    +117

Signed-off-by: Michael McTernan <Michael.McTernan.2001@cs.bris.ac.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

vconfig: remove /proc/net/vlan/config check

In original implementation /proc/net/vlan/config check only prints warning
and does not exit. Busybox version exits if this file is not found and this
prevents kernel module autoloading to work.
I think it is safe to remove this check since ioctl() call will fail
(with proper
error code) anyway if 802.1q module is not loaded (or autoloading is off).

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

httpd: fix /../ sanitization (had one extra semicolon). rewrote it

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

ash: document bash's exit code too. No code changes

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

ash: add comment about bash's ENOEXEC handling. No code changes

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

*: style fixes. no code changes

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

ifupdown: remove interface from state_list if iface_up fails

Fix the issue where interface is set to the configured state even if
configuration has failed. Add error check to state setting logic.

Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

configs/android_defconfig: update

Signed-off-by: Daniel Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

touch: add new option FEATURE_TOUCH_SUSV3

This options -d -t -r where hidden under DESKTOP.
This option allows the user to enable these options for (only) touch.

The patch only changes DESKTOP to FEATURE_TOUCH_SUSV3.

Signed-off-by: walter harms <wharms@bfs.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

touch: document -t DT option in help text

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

udhcpc: sanitize hostnames in incoming packets. Closes 3979.

The following options are replaced with string "bad" if they
contain malformed hostname:
HOST_NAME, DOMAIN_NAME, NIS_DOMAIN, TFTP_SERVER_NAME

function                                             old     new   delta
xmalloc_optname_optval                               850     888     +38
attach_option                                        440     443      +3
len_of_option_as_string                               13      14      +1
dhcp_option_lengths                                   13      14      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 43/0)               Total: 43 bytes

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

iproute: fix help text

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

blkid: make help text show [BLOCKDEV]...

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

volume_id/get_devname: trivial code shrink

function                                             old     new   delta
uuidcache_init                                        36      41      +5
get_devname_from_uuid                                 55      51      -4
get_devname_from_label                                61      57      -4
display_uuid_cache                                   109     105      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 5/-12)              Total: -7 bytes

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

suppress a "integer overflow in expression" waring on big endian. Closes 4405

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

Fix link failure on some platforms when PAM is enabled

Signed-off-by: Tristan Schmelcher <tristan_schmelcher@alumni.uwaterloo.ca>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

init: code shrink -4 bytes

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

init: utmp update of DEAD_PROCESS was misplaced, and could be skipped. Fixing.

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

httpd: small fixes to previous change

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

httpd: make it possible to use system passwords for auth

function                                             old     new   delta
check_user_passwd                                    320     467    +147
httpd_main                                           760     757      -3

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

old_e2fsprogs/blkid: close the fd after we are done with it

Some people have HUGE /dev/*...

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

vi: fix [end] key handling

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

rx: fix file corruption on block checksum failure

Rather than dropping the bad block, rx was appending it
to the file.

Signed-off-by: Daniel Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

nommu: fix cases where we mangle argv[0][0]

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

Added a few more features to android_defconfig

Signed-off-by: Daniel Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Merge branch 'master' of git+ssh://busybox.net/var/lib/git/busybox

makemime: document our current behavior. Tweak help text

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

makemime: content-type should default to application/octet-stream

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

sendmail: fix a mistake in previous commit

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