aboutsummaryrefslogtreecommitdiff
path: root/networking/nc.c
AgeCommit message (Collapse)Author
2019-07-02libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower overhead call to bb_perror_msg() when only a string was being printed with no parameters. This saves space for some CPU architectures because it avoids the overhead of a call to a variadic function. However there has never been a simple version of bb_error_msg(), and since 2007 many new calls to bb_perror_msg() have been added that only take a single parameter and so could have been using bb_simple_perror_message(). This changeset introduces 'simple' versions of bb_info_msg(), bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and bb_herror_msg_and_die(), and replaces all calls that only take a single parameter, or use something like ("%s", arg), with calls to the corresponding 'simple' version. Since it is likely that single parameter calls to the variadic functions may be accidentally reintroduced in the future a new debugging config option WARN_SIMPLE_MSG has been introduced. This uses some macro magic which will cause any such calls to generate a warning, but this is turned off by default to avoid use of the unpleasant macros in normal circumstances. This is a large changeset due to the number of calls that have been replaced. The only files that contain changes other than simple substitution of function calls are libbb.h, libbb/herror_msg.c, libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c, networking/udhcp/common.h and util-linux/mdev.c additonal macros have been added for logging so that single parameter and multiple parameter logging variants exist. The amount of space saved varies considerably by architecture, and was found to be as follows (for 'defconfig' using GCC 7.4): Arm: -92 bytes MIPS: -52 bytes PPC: -1836 bytes x86_64: -938 bytes Note that for the MIPS architecture only an exception had to be made disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h) because it made these files larger on MIPS. Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05whitespace and comment format fixes, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-15netcat: net applet (alias to nc)Denys Vlasenko
function old new delta packed_usage 31807 31856 +49 applet_names 2701 2708 +7 applet_main 1560 1564 +4 applet_install_loc 195 196 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 61/0) Total: 61 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-21config: deindent all help textsDenys Vlasenko
Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-18Update menuconfig items with approximate applet sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-16nc: use poll() instead of select()Denys Vlasenko
function old new delta nc_main 943 866 -77 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all networking/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21*: hopefully all setup_common_bufsiz() are in placeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for itDenys Vlasenko
The config item is FEATURE_USE_BSS_TAIL. When it is off (default): function old new delta read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 push 46 44 -2 inetd_main 2136 2134 -2 uevent_main 421 418 -3 addLines 97 92 -5 bb_common_bufsiz1 8193 1024 -7169 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829901 4086 1904 835891 cc133 busybox_unstripped FEATURE_USE_BSS_TAIL=y: read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 inetd_main 2136 2134 -2 bb_common_bufsiz1 8193 - -8193 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829911 4086 880 834877 cbd3d busybox_unstripped FIXME: setup_common_bufsiz() calls are missing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-28nc: use symbolic SHUT_WR instead of literal 1Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-17nc: fix build failure ("subscripted value is neither array nor pointer")Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-28Fix config help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-28nc: don't redirect stderr to network in -e PROG modeDenys Vlasenko
This in incompatible with nc-1.10, but makes a lot of sense. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace fixes. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-06-05*: remove "Options:" string from help textsDenys Vlasenko
function old new delta packed_usage 28706 28623 -83 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
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>
2010-07-18tweak defconfigDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-04*: introduce and use xfork() and xvfork()Pascal Bellard
function old new delta launch_helper 170 169 -1 setup_heredoc 312 302 -10 handle_dir_common 367 354 -13 expand_vars_to_list 2456 2443 -13 open_transformer 89 74 -15 data_extract_to_command 439 423 -16 do_ipaddr 1406 1389 -17 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85) Total: -85 bytes Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-27nc: introduce CONFIG_NC_110_COMPAT option.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-03nc: fix nc -ll; report vfork errors; make select loop fasterTomoya Adachi
function old new delta nc_main 933 946 +13 Signed-off-by: Tomoya Adachi <adachi@il.is.s.u-tokyo.ac.jp> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-01nc, hush: cosmetic cleanups, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-04-25add FEATURE_UNIX_LOCAL. By Ingo van Lil (inguin AT gmx.de)Denis Vlasenko
2009-04-21nc: free lsa in server mode, we might be up for a long timeDenis Vlasenko
2009-04-21*: mass renaming of USE_XXXX to IF_XXXXDenis Vlasenko
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially badly named. It was not skipping anything!
2008-11-09*: a bit of code shrinkDenis Vlasenko
function old new delta stop_handler 41 38 -3 sulogin_main 508 504 -4 got_cont 4 - -4 cont_handler 11 - -11 startservice 309 297 -12 processorstart 423 409 -14 tcpudpsvd_main 1861 1843 -18 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 0/5 up/down: 0/-66) Total: -66 bytes
2008-07-05*: rename ATTRIBUTE_XXX to just XXX.Denis Vlasenko
2008-07-01sendmail: fix wrong vfork usage here tooDenis Vlasenko
*: shorten error texts function old new delta launch_helper - 151 +151 vfork_or_die 20 - -20 sendgetmail_main 1946 1848 -98 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/1 up/down: 151/-118) Total: 33 bytes
2008-05-19- use EXIT_{SUCCESS,FAILURE}. No object-code changesBernhard Reutner-Fischer
2008-03-17*: fix fallout from -Wunused-parameterDenis Vlasenko
function old new delta bbunpack 358 366 +8 passwd_main 1070 1072 +2 handle_incoming_and_exit 2651 2653 +2 getpty 88 86 -2 script_main 975 972 -3 inetd_main 2036 2033 -3 dname_enc 377 373 -4 make_new_session 474 462 -12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/5 up/down: 12/-24) Total: -12 bytes text data bss dec hex filename 797429 658 7428 805515 c4a8b busybox_old 797417 658 7428 805503 c4a7f busybox_unstripped
2008-02-18mount: recognize "dirsync" (closes bug 835)Denis Vlasenko
mount: sanitize environ if called by non-root *: adjust for slightly different sanitize routine
2008-01-29- be C99 friendly. Anonymous unions are a GNU extension. This change isBernhard Reutner-Fischer
size-neutral WRT -std=gnu99 and fixes several compilation errors for strict C99 mode.
2007-10-11add -fvisibility=hidden to CC flags, mark XXX_main functionsDenis Vlasenko
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
2007-09-30introduce and use close_on_exec_on(fd). -50 bytes.Denis Vlasenko
2007-06-04Audit bb_common_bufsiz usage, add script which looks for misuse.Denis Vlasenko
tr: stop using globals needlessly. code: -103 bytes
2007-05-26usage.c: remove reference to busybox.hDenis Vlasenko
*: s/include "busybox.h"/include "libbb.h"
2007-04-05nc: port nc 1.10 to busyboxDenis Vlasenko
2007-04-01tcpsvd: new appletDenis Vlasenko
It's a GPL-ed 'clone' of Dan Bernstein's tcpserver. Author: Gerrit Pape <pape@smarden.org> http://smarden.sunsite.dk/ipsvd/ size tcpsvd.o text data bss dec hex filename 2571 4 16 2591 a1f tcpsvd.o
2007-02-06EXEC_PREFER_APPLETS support by Gabriel L. Somlo <somlo@cmu.edu>Denis Vlasenko
2007-02-03suppress warnings about easch <applet>_main() havingDenis Vlasenko
no preceding prototype
2007-01-22cleanups: unnecessary casts, unified const_1, eliminate cross-.c fileDenis Vlasenko
prototypes (heresy!), add spaces in places like "flags&NETSTAT_CONNECTED", removed unused #defines, #ifdef -> #if, use uint32_t for ipv4 addrs.
2007-01-20fixing bugs revealed by randomconfig runsDenis Vlasenko
2007-01-12next part of ipv6-ization. mostly netcat.Denis Vlasenko
2007-01-12next part of ipv6-ization is here: wget & httpdDenis Vlasenko
2006-12-23use xbind, xconnect where appropriate.Denis Vlasenko
small edits to arping
2006-12-18nc: add missing castDenis Vlasenko
xfuncs: add dprintf for dietlibc
2006-11-22introduce setsockopt_reuseaddr(int fd), setsockopt_broadcast(int fd),Denis Vlasenko
use them where appropriate. 200 bytes saved
2006-11-07small ipv6 doc changes; nslookup a tiny bit smallerDenis Vlasenko
2006-10-16nc: fix 2 my own buglets, and few someone else's too.Denis Vlasenko
2006-10-08attempt to regularize atoi mess.Denis Vlasenko
2006-09-17whitespace cleanupDenis Vlasenko
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 13:16:09 +0000