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d0a8a0d312
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38 Commits

Author SHA1 Message Date
Denys Vlasenko
d0a8a0d312 tar: fix --to-command wrt short writes 
function                                             old     new   delta
bb_copyfd_exact_size                                  51      98     +47
bb_full_fd_action                                    362     394     +32
get_header_tar                                      1546    1558     +12
data_extract_to_command                              430     439      +9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 100/0)             Total: 100 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-26 18:11:44 +02:00
Denys Vlasenko
bcda0042e2 libbb/copyfd.c: don't mmap a largish buffer if we only want to copy a few kb 
function                                             old     new   delta
bb_full_fd_action                                    283     295     +12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-19 14:34:30 +01:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on 
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
 2008-06-27 02:52:20 +00:00
Denis Vlasenko
8003e266ed explain why we use mmap instead of malloc 2007-12-02 07:18:29 +00:00
Denis Vlasenko
4c13922961 Introduce FEATURE_COPYBUF_KB. 
People who want smaller stack at any cost may use it
to reduce cp's stack usage (FEATURE_COPYBUF_KB=1).
Desktop people may get faster copy of big files
(FEATURE_COPYBUF_KB=32 is ~30% faster than 4kb)
 2007-12-02 03:27:42 +00:00
Denis Vlasenko
50f7f446ec bb_full_fd_action: remove potential xmalloc from NOFORK path 
cat: stop using stdio.h opens
libbb: introduce & use open[3]_or_warn
function                                             old     new   delta
open3_or_warn                                          -      54     +54
bb_cat                                               115     144     +29
open_or_warn                                           -      25     +25
unlzma                                              2404    2412      +8
chattr_main                                          334     339      +5
xstrtoul_range_sfx                                   251     255      +4
telnet_main                                         1514    1510      -4
static.opt                                             4       -      -4
qgravechar                                           122     118      -4
fuser_add_pid                                         61      54      -7
fuser_add_inode                                      154     147      -7
writeFileToTarball                                  1542    1534      -8
refresh                                             1156    1148      -8
do_show                                              856     846     -10
read_leases                                          212     200     -12
setup_redirects                                      236     222     -14
iproute_list_or_flush                               1582    1568     -14
read_config                                          427     411     -16
write_leases                                         284     264     -20
hash_file                                            338     318     -20
copy_file                                           1760    1740     -20
do_iproute                                          2610    2588     -22
bb_full_fd_action                                    320     269     -51
open_to_or_warn                                      103      49     -54
fuser_main                                          1660    1596     -64
.rodata                                           131160  131096     -64
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 4/19 up/down: 125/-423)        Total: -298 bytes
 2007-04-11 23:20:53 +00:00
Denis Vlasenko
335b63d8d1 make a few struct bb_applet members conditional 
rename sllep_and_die -> xfunc_die
make fflush_stdout_and_exit NOFORK-safe
fix some buglets found by randomconfig
 2007-04-10 21:38:30 +00:00
Denis Vlasenko
99912ca733 audit small applets and mark some of them as NOFORK. 
Put big scary warnings in relevant places.
 2007-04-10 15:43:37 +00:00
Denis Vlasenko
3f3aa2a57d make xfunctions optionally longjump instead of exit. 
use it for making NOFORK more practical.
touch: make it a NOFORK applet
 2007-04-09 21:35:07 +00:00
Denis Vlasenko
f7996f3b70 Trailing whitespace removal over entire tree 2007-01-11 17:20:00 +00:00
Denis Vlasenko
714701c890 tar et al: die if bb_copyfd_size copies less than asked for. 
(we have bb_copyfd_exact_size now for that kind of usage)
 2006-12-22 00:21:07 +00:00
Denis Vlasenko
2d27e4ccbb tee: fix bug: argv[-1] is a no-no! 
bb_full_fd_action: optimize
die_if_ferror: "<applet>: filename" isn't a good err msg, add "..I/O error"
 2006-11-25 23:50:28 +00:00
Denis Vlasenko
4fbb584a0e tar: cry murder and bail out if file shrinks under us while we tar it up 2006-11-24 14:55:23 +00:00
Denis Vlasenko
7039a66b58 correct largefile support, add comments about it. 2006-10-08 17:54:47 +00:00
Denis Vlasenko
6231e870ec style fixes 2006-09-17 15:45:48 +00:00
Rob Landley
534374755d Cleaup read() and write() variants, plus a couple of new functions like 
xlseek and fdlength() for the new mkswap.
 2006-07-16 08:14:35 +00:00
Bernhard Reutner-Fischer
421d9e5941 - move buffer allocation schemes to libbb.h 
- include the correct headers: applets need busybox.h while lib* need libbb.h
 2006-04-03 16:39:31 +00:00
Rob Landley
dfba741457 Robert P. Day removed 8 gazillion occurrences of "extern" on function 
definitions.  (That should only be on prototypes.)
 2006-03-06 20:47:33 +00:00
Rob Landley
90632d021c Bug fix from Kim B. Heino, manifested via: 
echo > foo && zip foo.zip foo && ./busybox unzip foo.zip
 2006-02-13 19:40:43 +00:00
"Vladimir N. Oleynik"
7600eec732 avoid signed<->unsigned warning 2006-01-31 12:12:15 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
Rob Landley
9033453c18 My last change to this file broke tar x. Sigh. (Trying to make sure we work 
on file sizes between 2 and 4 gigs on 32 bit machines.  For supporting >4 gigs,
just use a 64 bit machine already...)
 2005-11-12 11:04:11 +00:00
Rob Landley
3fc4ad1478 Fix bug 424: doing full_read breaks things like cat which should return a 
chunk of data when they get it and not block until they've buffered 4k.

The use case was cat /proc/psaux, but you can also reproduce this by
running non-busybox cat by itself and typing things at the command line.
Then run busybox cat.  Notice how cat is _supposed_ to echo each line back
to us as we hit enter?
 2005-11-04 01:54:15 +00:00
Rob Landley
21ccbb6c0e When cp ran out of space it didn't return a nonzero error code. Fixes bug 493. 2005-11-04 01:20:46 +00:00
Eric Andersen
fef32b570b Correct errors preventing busybox tar from working properly, 
fixing bug http://bugs.uclibc.org/view.php?id=231
 2005-04-27 10:51:38 +00:00
Eric Andersen
451c0d2828 Rework to fix http://bugs.uclibc.org/view.php?id=107 2005-04-16 07:46:53 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Glenn L McGrath
181f0773e2 bb_full_fd_action was incorrectly returning an error message causing 
major breaking.
 2004-02-23 08:11:07 +00:00
Glenn L McGrath
15c3512614 Sometimes i get carried away with the use of function pointers, im sure 
it seemed like a good idea at the time.
 2004-02-21 09:20:56 +00:00
Glenn L McGrath
c3498f678a When a size of 0 is passed to copyfd_size, dont do anything, it was 
reading untill eof which breaks tar
 2003-11-24 23:50:07 +00:00
Glenn L McGrath
f0515dad66 Fix warning 2003-11-22 02:13:41 +00:00
Glenn L McGrath
7ffe133864 As we no longer use function pointers for read in common archiving code 
archive_xread can be replaced with bb_full_read, and archive_copy_file
with bb_copyfd*
bb_copyfd is split into two functions bb_copyfd_size and bb_copyfd_eof,
they share a common backend.
 2003-11-21 22:24:57 +00:00
Eric Andersen
cb81e6484d Update a bunch of docs. Run a script to update my email addr. 2003-07-14 21:21:08 +00:00
Manuel Novoa III
cad5364599 Major coreutils update. 2003-03-19 09:13:01 +00:00
Glenn L McGrath
25fe94fd32 Merge copyfd and copy_file_chunk 2002-12-13 08:20:44 +00:00
Eric Andersen
bdfd0d78bc Major rework of the directory structure and the entire build system. 
-Erik
 2001-10-24 05:00:29 +00:00
Matt Kraai
d6ef07406d Rewrote copyfd to use library functions, terminate, and copy correct data. 2001-05-18 14:14:55 +00:00
Eric Andersen
55f9872616 This patch from Adam Heath <doogie@debian.org>, makes print_file 
(used by cat, grep, sed, etc) quite a bit faster.
 2001-05-15 17:48:09 +00:00