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* libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne2019-07-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* config: update size informationDenys Vlasenko2018-12-281-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* regularize format of source file headers, no code changesDenys Vlasenko2017-09-181-1/+0
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* getopt32: remove applet_long_optionsDenys Vlasenko2017-08-081-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FEATURE_GETOPT_LONG made dependent on LONG_OPTS. The folloving options are removed, now LONG_OPTS enables long options for affected applets: FEATURE_ENV_LONG_OPTIONS FEATURE_EXPAND_LONG_OPTIONS FEATURE_UNEXPAND_LONG_OPTIONS FEATURE_MKDIR_LONG_OPTIONS FEATURE_MV_LONG_OPTIONS FEATURE_RMDIR_LONG_OPTIONS FEATURE_ADDGROUP_LONG_OPTIONS FEATURE_ADDUSER_LONG_OPTIONS FEATURE_HWCLOCK_LONG_OPTIONS FEATURE_NSENTER_LONG_OPTS FEATURE_CHCON_LONG_OPTIONS FEATURE_RUNCON_LONG_OPTIONS They either had a small number of long options, or their long options are essential. Example: upstream addgroup and adduser have ONLY longopts, we should probably go further and get rid of non-standard short options. To this end, make addgroup and adduser "select LONG_OPTS". We had this breakage caused by us even in our own package! #if ENABLE_LONG_OPTS || !ENABLE_ADDGROUP /* We try to use --gid, not -g, because "standard" addgroup * has no short option -g, it has only long --gid. */ argv[1] = (char*)"--gid"; #else /* Breaks if system in fact does NOT use busybox addgroup */ argv[1] = (char*)"-g"; #endif xargs: its lone longopt no longer depends on DESKTOP, only on LONG_OPTS. hwclock TODO: get rid of incompatible -t, -l aliases to --systz, --localtime Shorten help texts by omitting long option when short opt alternative exists. Reduction of size comes from the fact that store of an immediate (an address of longopts) to a fixed address (global variable) is a longer insn than pushing that immediate or passing it in a register. This effect is CPU-agnostic. function old new delta getopt32 1350 22 -1328 vgetopt32 - 1318 +1318 getopt32long - 24 +24 tftpd_main 562 567 +5 scan_recursive 376 380 +4 collect_cpu 545 546 +1 date_main 1096 1095 -1 hostname_main 262 259 -3 uname_main 259 255 -4 setpriv_main 362 358 -4 rmdir_main 191 187 -4 mv_main 562 558 -4 ipcalc_main 548 544 -4 ifenslave_main 641 637 -4 gzip_main 192 188 -4 gunzip_main 77 73 -4 fsfreeze_main 81 77 -4 flock_main 318 314 -4 deluser_main 337 333 -4 cp_main 374 370 -4 chown_main 175 171 -4 applet_long_options 4 - -4 xargs_main 894 889 -5 wget_main 2540 2535 -5 udhcpc_main 2767 2762 -5 touch_main 436 431 -5 tar_main 1014 1009 -5 start_stop_daemon_main 1033 1028 -5 sed_main 682 677 -5 script_main 1082 1077 -5 run_parts_main 330 325 -5 rtcwake_main 459 454 -5 od_main 2169 2164 -5 nl_main 201 196 -5 modprobe_main 773 768 -5 mkdir_main 160 155 -5 ls_main 568 563 -5 install_main 773 768 -5 hwclock_main 411 406 -5 getopt_main 622 617 -5 fstrim_main 256 251 -5 env_main 198 193 -5 dumpleases_main 635 630 -5 dpkg_main 3991 3986 -5 diff_main 1355 1350 -5 cryptpw_main 233 228 -5 cpio_main 593 588 -5 conspy_main 1135 1130 -5 chpasswd_main 313 308 -5 adduser_main 887 882 -5 addgroup_main 416 411 -5 ftpgetput_main 351 345 -6 get_terminal_width_height 242 234 -8 expand_main 690 680 -10 static.expand_longopts 18 - -18 static.unexpand_longopts 27 - -27 mkdir_longopts 28 - -28 env_longopts 30 - -30 static.ifenslave_longopts 34 - -34 mv_longopts 46 - -46 static.rmdir_longopts 48 - -48 packed_usage 31739 31687 -52 ------------------------------------------------------------------------------ (add/remove: 2/8 grow/shrink: 3/49 up/down: 1352/-1840) Total: -488 bytes text data bss dec hex filename 915681 485 6880 923046 e15a6 busybox_old 915428 485 6876 922789 e14a5 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* dnsdomainname,hostname: make NOEXECDenys Vlasenko2017-08-071-3/+3
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* do not use `a' quoting style in commentsDenys Vlasenko2017-08-021-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* config: deindent all help textsDenys Vlasenko2017-07-211-2/+2
| | | | | | Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Update menuconfig items with approximate applet sizesDenys Vlasenko2017-07-181-2/+2
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: add comment about APPLET_ODDNAME formatDenys Vlasenko2017-01-291-0/+1
| | | | | | It confused me more than once Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* dnsdomainname: split it from "hostname", make it independently selectableDenys Vlasenko2016-11-131-2/+24
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* hostname: do not use gethostbyname() for "hostname -s"Michael Tokarev2013-12-171-2/+5
| | | | | | | | | | | | | | | | | | | | There's no reason to call gethostbyname() on the value returned by uname() when asked just for a short name of a host. This may also be wrong, when uname is set to one value, but in /etc/hosts (or elsewhere) the "canonical" name is different. This is often the case for localhost entry in /etc/hosts: 127.0.0.1 localhost myname With this content of /etc/hosts, and uname being set to myname, busybox hostname -s will return localhost, while regular hostname utility returns myname. Fix this by not calling gethostbyname() for the simple 'hostname -s' use. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* hostname: make -i not emit extra trailing spaceDenys Vlasenko2012-04-011-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: remove "Options:" string from help textsDenys Vlasenko2011-06-051-1/+0
| | | | | | | function old new delta packed_usage 28706 28623 -83 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* move remaining help text from include/usage.src.hPere Orga2011-04-111-0/+19
| | | | | Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: make GNU licensing statement forms more regularDenys Vlasenko2010-08-161-1/+1
| | | | | | | 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>
* *: gethostname-related fixesDenys Vlasenko2010-02-271-3/+7
| | | | | | | | function old new delta hostname_main 218 231 +13 nfsmount 3541 3474 -67 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* remove trailing whitespaceDenys Vlasenko2009-07-151-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* updates for supporting Linux kernel build and initrd utilitiesDenys Vlasenko2009-06-261-30/+91
| | | | | | | | | cpio: --verbose, --quiet, --to-stdout test: make 64-bit math enable-able for hush too dnsdomainname: alias to hostname -d hostname: support --fqdn, --domain, --file Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* fix several problems with config parser:Denis Vlasenko2008-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a bug where it underflows the string a bug where it never frees parser_t struct make read_config() return 0 if parser is NULL, make config_close() accept and ignore NULL parser - eliminates many if() blocks reverse the sense of parser bit flags - negative flags are harder to grok. hexdump: revert the change to use config parser, it is BIGGER and also requires additional quirks in parser *: explicitly use PARSER_NORMAL instead of 0 function old new delta login_main 1575 1596 +21 config_close 18 29 +11 bbunpack 383 391 +8 qgravechar 106 109 +3 rtnl_tab_initialize 121 117 -4 expand 1697 1693 -4 man_main 717 712 -5 nameif_main 674 668 -6 hexdump_main 597 591 -6 read_config 217 209 -8 dnsd_main 1478 1470 -8 sysctl_main 203 189 -14 config_open2 44 25 -19 make_device 1177 1141 -36 config_read 597 549 -48 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/11 up/down: 43/-158) Total: -115 bytes
* libbb: [x]fopen_for_{read,write} introduced and used.Denis Vlasenko2008-07-211-19/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (by Valdimir) function old new delta config_open2 - 41 +41 config_read 507 542 +35 find_pair 169 187 +18 fopen_for_write - 14 +14 fopen_for_read - 14 +14 find_main 406 418 +12 xfopen_for_write - 10 +10 xfopen_for_read - 10 +10 popstring 134 140 +6 parse_inittab 396 401 +5 next_token 923 928 +5 pack_gzip 1659 1661 +2 bb__parsespent 117 119 +2 fallbackSort 1719 1717 -2 evalvar 1376 1374 -2 qrealloc 36 33 -3 ... ... ... ... singlemount 4579 4569 -10 process_stdin 443 433 -10 patch_main 1111 1101 -10 ifupdown_main 2175 2165 -10 file_action_grep 90 80 -10 uuidcache_init 649 637 -12 hush_main 797 785 -12 read_config 230 217 -13 dpkg_main 3835 3820 -15 read_line_input 3134 3110 -24 sysctl_main 232 203 -29 config_open 40 10 -30 WARN_BAD_LINE 44 - -44 login_main 1714 1575 -139 ------------------------------------------------------------------------------ (add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737) Total: -563 bytes
* *: intrduce and use safe_gethostname. By Tito <farmatito AT tiscali.it>Denis Vlasenko2008-02-251-9/+9
| | | | | | | | | | | | | | | | | | | | | safe_gethostname - 48 +48 glob3 35 37 +2 timestamp_and_log 314 315 +1 udhcp_send_kernel_packet 234 231 -3 scan_tree 275 271 -4 passwd_main 1074 1070 -4 print_login_prompt 68 58 -10 obscure 392 377 -15 syslogd_main 882 866 -16 print_login_issue 516 478 -38 hostname_main 278 223 -55 parse_and_put_prompt 825 756 -69 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/9 up/down: 51/-214) Total: -163 bytes text data bss dec hex filename 798791 728 7484 807003 c505b busybox_old 798631 728 7484 806843 c4fbb busybox_unstripped
* add -fvisibility=hidden to CC flags, mark XXX_main functionsDenis Vlasenko2007-10-111-1/+1
| | | | | EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
* introduce bb_putchar(). saves ~1800 on uclibc (less on glibc).Denis Vlasenko2007-09-271-1/+1
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* don't pass argc in getopt32, it's superfluousDenis Vlasenko2007-08-181-1/+1
| | | | | | | | (add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes text data bss dec hex filename 773469 1058 11092 785619 bfcd3 busybox_old 772644 1058 11092 784794 bf99a busybox_unstripped
* Audit bb_common_bufsiz usage, add script which looks for misuse.Denis Vlasenko2007-06-041-4/+5
| | | | | | tr: stop using globals needlessly. code: -103 bytes
* usage.c: remove reference to busybox.hDenis Vlasenko2007-05-261-1/+1
| | | | | *: s/include "busybox.h"/include "libbb.h"
* suppress warnings about easch <applet>_main() havingDenis Vlasenko2007-02-031-0/+1
| | | | no preceding prototype
* fix option -F mishandlingDenis Vlasenko2007-01-261-1/+1
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* arping: stop using last gethostbyname2 in the treeDenis Vlasenko2007-01-251-3/+4
| | | | hostname: small optimization
* - sed -i -e "/\$Id:/d;"Bernhard Reutner-Fischer2007-01-221-1/+0
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* vda, we once had a get_chomped_line_from_file or the like. Where is that ↵Bernhard Reutner-Fischer2007-01-091-17/+15
| | | | | | nowadays? FIXME: use it here instead of the fgets() - shrink by ~9%: use common_buf, reuse are_you_root, adopt to global option_mask32
* getopt_ulflags -> getopt32.Denis Vlasenko2006-10-031-2/+2
| | | | | | | | It is impossible to formulate sane ABI based on size of ulong because it can be 32-bit or 64-bit. Basically it means that you cannot portably use more that 32 option chars in one call anyway... Make it explicit.
* hostname: getopt_ulflags'isationDenis Vlasenko2006-09-221-39/+28
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* Remove bb_ prefixes from xfuncs.c (and a few other places), consolidateRob Landley2006-08-031-9/+2
| | | | | | | | | | things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only had one user), clean up lots of #includes... General cleanup pass. What I've been doing for the last couple days. And it conflicts! I've removed httpd.c from this checkin due to somebody else touching that file. It builds for me. I have to catch a bus. (Now you know why I'm looking forward to Mercurial.)
* Add one-line GPL boilerplate to these source files."Robert P. J. Day"2006-07-111-12/+2
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* just whitespaceTim Riker2006-01-251-2/+2
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* Update a bunch of docs. Run a script to update my email addr.Eric Andersen2003-07-141-2/+2
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* Major coreutils update.Manuel Novoa III2003-03-191-6/+6
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* Fix for hostname -s, by Stephan LinzGlenn L McGrath2002-11-101-2/+2
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* Fix needless difference vs GNUEric Andersen2002-10-181-2/+2
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* Major cleanup from Charles Steinkuehler <charles@steinkuehler.net>:Eric Andersen2001-10-311-56/+58
| | | | | | | | | | | | | | | | | | - Switched to getopt argument parsing - Added -f option to get fully qualified domain name - Fixed the -s (short) and -d (domain) options, which were not doing a gethostbyname lookup to get the FQDN before trying to separate the local and domain portions of the hostname. - Fixed probem with 'agressive setting' of the hostname...the previous busybox version would try to set the hostname if called with a non-option argument, or the -F option, even if another option (like -i or -s) was given. This behavior does not match the net-tools hostname, which does not attempt to set anything if given a 'display' option, regardless of the presence/absence of the -F option or additional command line arguments. - When using a file to set the hostname, behavior now matches net-tools version...previous busybox version did not handle comments, and simply grabbed the first line from the file.
* Major rework of the directory structure and the entire build system.Eric Andersen2001-10-241-2/+2
| | | | -Erik
* Vladimir's last_patch_15Glenn L McGrath2001-06-261-3/+4
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* These were broken when using dmalloc due to include file orderingEric Andersen2001-06-231-2/+2
| | | | | problems. busybox.h must be last. -Erik
* Add xgethostbyname and herror_msg* functions.Matt Kraai2001-05-161-6/+2
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* Change 'printf("%s\n", ...)' into 'puts(...)'. Noted and patched in hostname.cMatt Kraai2001-05-161-5/+5
| | | | by Larry Doolittle.
* A cleanup patch from Jeff Garzik to static-ify a number ofEric Andersen2001-03-091-2/+2
| | | | namespace polluting things that really should be static.
* Patchs from Jeff Garzik <jgarzik@mandrakesoft.com> to cleanupEric Andersen2001-03-091-1/+2
| | | | | warnings with glibc 2.2 and use always use xfopen -Erik
* This patch, put together by Manuel Novoa III, is a merge of workEric Andersen2001-02-141-5/+5
| | | | | | done by Evin Robertson (bug#1105) and work from Manuel to make usage messages occupy less space and simplify how usage messages are displayed.
* Fix wget error message and add (and use) chomp library function.Matt Kraai2001-02-011-3/+2
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