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36 Commits

Author SHA1 Message Date
Denys Vlasenko
899ae5337a libbb: new function bb_die_memory_exhausted 
function                                             old     new   delta
bb_die_memory_exhausted                                -      10     +10
xstrdup                                               28      23      -5
xsetenv                                               27      22      -5
xrealloc                                              32      27      -5
xputenv                                               22      17      -5
xmalloc                                               30      25      -5
xfdopen_helper                                        40      35      -5
xasprintf                                             44      39      -5
wget_main                                           2387    2382      -5
open_socket                                           54      49      -5
glob_brace                                           419     414      -5
bb_get_chunk_from_file                               146     141      -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/11 up/down: 10/-55)           Total: -45 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-01 19:59:37 +02:00
Quentin Rameau
e2afae6303 sed: prevent overflow of length from bb_get_chunk_from_file 
This fragment did not work right:

                temp = bb_get_chunk_from_file(fp, &len);
                if (temp) {
                        /* len > 0 here, it's ok to do temp[len-1] */
                        char c = temp[len-1];

With "int len" _sign-extending_, temp[len-1] can refer to a wrong location
if len > 0x7fffffff.

Signed-off-by: Quentin Rameau <quinq@fifth.space>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-01 19:51:14 +02:00
Quentin Rameau
2da9724b56 libbb: remove unnecessary variable in xmalloc_fgets 
Signed-off-by: Quentin Rameau <quinq@fifth.space>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-01 19:45:36 +02:00
Denys Vlasenko
ebe6d9d875 whitespace and comment format fixes, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-10-05 14:40:24 +02:00
Denys Vlasenko
a1a448347e libbb: split bb_get_chunk_from_file and bb_get_chunk_with_continuation 
This also moves bb_get_chunk_with_continuation into its sole user,
parse_config.c.
This allows to optimize both functions separately,
they need to be optimized for speed.
(this need was highlighted by slow modprobe caused in part by slow
bb_get_chunk_with_continuation in config parser).

function                                             old     new   delta
bb_get_chunk_from_file                                 7     130    +123
config_read                                          457     558    +101
bb_get_chunk_with_continuation                       194       -    -194
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/0 up/down: 224/-194)           Total: 30 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-17 03:37:43 +02:00
Denys Vlasenko
0288b27ad8 small fixes atop syslog config patch 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-16 20:15:14 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular 
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-16 20:14:46 +02:00
Denys Vlasenko
b87c17cd16 *: stop defining _GNU_SOURCE in source files, it's in CFLAGS anyway 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-18 15:15:24 +02:00
Denis Vlasenko
69f4f9a6f4 optimize config_read() (by Timo Teras <timo.teras AT iki.fi>) 
function                                             old     new   delta
bb_get_chunk_with_continuation                         -     176    +176
find_pair                                            169     187     +18
...
process_stdin                                        443     433     -10
config_read                                          549     456     -93
bb_get_chunk_from_file                               139       7    -132
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/7 up/down: 215/-254)          Total: -39 bytes
 2008-08-09 17:16:40 +00:00
Denis Vlasenko
3fd15e197e grep: option to use GNU regex matching instead of POSIX one. 
This fixes problems with NULs in files being scanned, but
 costs +800 bytes. The same can be done to sed (TODO).
 2008-08-09 16:15:14 +00:00
Denis Vlasenko
5e476bab9c libbb: document plans to speed up line-based input 2008-07-15 21:29:44 +00:00
Denis Vlasenko
2132e02213 libbb: experimental faster string reading routines. 2008-07-15 10:33:12 +00:00
Denis Vlasenko
deeed59de0 libbb: introduce and use xrealloc_vector 
function                                             old     new   delta
xrealloc_vector_helper                                 -      51     +51
create_list                                           84      99     +15
getopt_main                                          690     695      +5
passwd_main                                         1049    1053      +4
get_cached                                            85      89      +4
msh_main                                            1377    1380      +3
add_match                                             42      41      -1
read_lines                                           720     718      -2
grave                                               1068    1066      -2
fill_match_lines                                     143     141      -2
add_to_dirlist                                        67      65      -2
add_input_file                                        49      47      -2
act                                                  252     250      -2
fsck_main                                           2252    2246      -6
man_main                                             765     757      -8
bb_internal_initgroups                               228     220      -8
cut_main                                            1052    1041     -11
add_edge_to_node                                      55      43     -12
dpkg_main                                           3851    3835     -16
ifupdown_main                                       2202    2178     -24
sort_main                                            838     812     -26
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 5/15 up/down: 82/-124)          Total: -42 bytes
 2008-07-08 05:14:36 +00:00
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
8ee649a02e *: more uniform naming: s/xmalloc_getline/xmalloc_fgetline/ 2008-03-26 20:04:27 +00:00
Denis Vlasenko
abee3d0e0d Fix xmalloc_fgets_str so that it really does NOT strip terminator. 
Add xmalloc_fgetline_str which does strip terminator,
and use it in dpkg instead of xmalloc_fgets_str.
netstat: use xmalloc_fgets_str - allows to eat strings with NULs
(this fixes bug with some weird /proc/net/unix input)

function                                             old     new   delta
xmalloc_fgets_internal                                 -     191    +191
xmalloc_fgetline_str                                   -      18     +18
do_info                                              116     120      +4
unix_do_one                                          451     447      -4
tcp_do_one                                           423     419      -4
send_tree                                            369     365      -4
xmalloc_fgets_str                                    178      15    -163
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/4 up/down: 213/-175)           Total: 38 bytes
   text    data     bss     dec     hex filename
 778445     832    7344  786621   c00bd busybox_old
 778483     832    7344  786659   c00e3 busybox_unstripped
 2007-12-26 20:44:45 +00:00
Denis Vlasenko
51742f4bb0 style fixes. No code changes 2007-04-12 00:32:05 +00:00
Denis Vlasenko
ef44d9d9f2 sed,get_line_from_file: improve comments 2007-01-17 23:16:16 +00:00
Denis Vlasenko
f7996f3b70 Trailing whitespace removal over entire tree 2007-01-11 17:20:00 +00:00
Denis Vlasenko
9a7cef930f less: somewhat buggy applet, but nice. Muchly reduced 
xstrdup'ing and memory consumption. Made linewrap saner.
regex matching code was awful - still buggy, but not as
leaky as before. Made buffer size configurable. Killed
several static and on-stack buffers. Hopefully eliminated
staircase effect on Ctrl-C (unable to reproduce).
 2006-12-20 02:46:48 +00:00
Denis Vlasenko
8b22b07bc5 sed: improve handling of NULs 2006-12-02 17:58:10 +00:00
Denis Vlasenko
ab24e18c7a passwd: rework: 
* do not make backup copy by copying (just retain old file)
* correctly fall back to /etc/passwd if user is not in shadow
* fix bug with overlong passwd entries
* be permissive on some kinds of failures
* reduce stack usage
* code size: -500 bytes
 2006-11-30 16:41:15 +00:00
Denis Vlasenko
2d5ca60bfb bb_get_[chomped]line_from_file wasn't descriptive enough. 
Renaming...
 2006-10-12 22:43:20 +00:00
Denis Vlasenko
372686bde7 cut, mount: small improvements 2006-10-12 22:42:33 +00:00
Denis Vlasenko
b97c9842a5 sed: unbreak multiple -e, -f option handling (my fault) 2006-10-01 21:05:12 +00:00
Bernhard Reutner-Fischer
2d1a6e7c1f - fix bug #887, in bb_get_chomped_line_from_file(), the last char was removed 
unconditionally, even if it was not a newline.
  This was apparently broken by r14254
- whitespace while at it.
 2006-06-10 11:04:43 +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
2b26fd5570 A few changes falling out from the effort to make sed handle embedded NUL bytes. 
Checking in to reduce the diff between my tree and svn...
 2006-02-24 02:30:39 +00:00
Rob Landley
c0dedd05e8 Sort rewrite to be SUSv3 compliant. New config option, updated help, and 
a couple of infrastructure bits.
 2005-01-24 07:00:02 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Glenn L McGrath
2570b43e82 Configuration option to define wether to follows GNU sed's behaviour 
or the posix standard.
Put the cleanup code back the way it was.
 2003-09-16 05:25:43 +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
Matt Kraai
355a61b56f Treat NUL as the end-of-line. 2001-11-20 15:49:50 +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
Eric Andersen
aad1a88c76 Convert utility.c into libbb.a. It is now a whole pile of .c 
files.  Clean up the resulting damage and fix up the makefile.
 -Erik
 2001-03-16 22:47:14 +00:00