summaryrefslogtreecommitdiff
path: root/libbb/copy_file.c
AgeCommit message (Collapse)Author
2021-06-22cp: implement -nDenys Vlasenko
function old new delta .rodata 103681 103722 +41 packed_usage 33698 33717 +19 copy_file 1678 1696 +18 cp_main 500 492 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 78/-8) Total: 70 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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>
2018-09-03libbb: fix use-after-free in copy_fileDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-13cp: optional --reflink supportDenys Vlasenko
function old new delta cp_main 428 512 +84 copy_file 1676 1742 +66 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-07libbb: rename bb_ask -> bb_ask_noecho, bb_ask_confirmation -> ↵Denys Vlasenko
bb_ask_y_confirmation Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-10libarchive: do not extract unsafe symlinks unless $EXTRACT_UNSAFE_SYMLINKS=1Denys Vlasenko
function old new delta unsafe_symlink_target - 147 +147 unzip_main 2711 2732 +21 copy_file 1657 1678 +21 tar_main 999 971 -28 data_extract_all 1038 984 -54 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 2/2 up/down: 189/-82) Total: 107 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-13cp: fix -i for POSIX mode. Closes 9106Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-14cp: make verbose cp show symlink copies tooDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-27cp: add -u/--update and --remove-destinationDenys Vlasenko
Based on the patch by wdlkmpx@gmail.com function old new delta copy_file 1546 1644 +98 add_partition 1270 1362 +92 ask_and_unlink 95 133 +38 do_iproute 132 157 +25 decode_one_format 710 715 +5 cp_main 369 374 +5 ubirename_main 198 202 +4 read_package_field 232 230 -2 bb_make_directory 421 412 -9 packed_usage 30505 30476 -29 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 7/3 up/down: 267/-40) Total: 227 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-19Add conditional support for -v / --verboseDenys Vlasenko
With FEATURE_VERBOSE off, practically no size change. With it on: function old new delta remove_file 493 556 +63 install_main 719 765 +46 bb_make_directory 383 419 +36 rmdir_main 162 191 +29 copy_file 1516 1544 +28 mv_main 502 525 +23 cmp_main 677 693 +16 bbconfig_config_bz2 5264 5279 +15 mkdir_main 158 168 +10 install_longopts 66 76 +10 rm_main 167 175 +8 nexpr 840 846 +6 scan_tree 275 280 +5 fsck_main 1807 1811 +4 ed_main 2541 2545 +4 expand_one_var 1574 1575 +1 swap_on_off_main 420 418 -2 parse_command 1443 1440 -3 redirect 1279 1274 -5 do_load 946 918 -28 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 16/4 up/down: 304/-38) Total: 266 bytes Based on the patch by Igor Živković. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-28libbb/copy_file.c: use smallints instead of signed charsDenys Vlasenko
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>
2010-02-06cosmetic fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-01-15cp: fix -H handlingDenys Vlasenko
function old new delta copy_file 1495 1518 +23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-29fix improper utimes usageDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-15some non-gnu compilers can't have non-const struct initializersDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-15use utimes() rather than obsolescent utime()Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-13*: use "can't" instead of "cannot"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-05cp: make "non-POSIX" cp a bit more consistentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-05cp: by popular demand, make it POSIX compliant (but less safe)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2008-06-27*: introduce and use FAST_FUNC: regparm on i386, otherwise no-onDenis Vlasenko
text data bss dec hex filename 808035 611 6868 815514 c719a busybox_old 804472 611 6868 811951 c63af busybox_unstripped
2008-03-28copy_file: handle "cp /dev/foo file" (almost) compatibly to coreutils.Denis Vlasenko
(almost because we do not copy mode, which is probably wasn't intended). +61 bytes.
2008-02-13cp: add ENABLE_FEATURE_VERBOSE_CP_MESSAGE. Closes bug 1470Denis Vlasenko
2007-09-11cp: make it a bit closer to POSIX, but still refuse to open andDenis Vlasenko
write to dest which is a symlink.
2007-09-11cp: make "cp file /dev/node" special case; explained in commentsDenis Vlasenko
function old new delta copy_file 1487 1538 +51 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 51/0) Total: 51 bytes text data bss dec hex filename 772502 1051 10724 784277 bf795 busybox_old 772554 1051 10724 784329 bf7c9 busybox_unstripped
2007-08-27cp: fix recursion check to not waste bytes remembering names of dirsDenis Vlasenko
2007-08-27cp: detect and prevent infinite recursionDenis Vlasenko
2007-08-25make copy_file() a bit easier to understand, and smallerDenis Vlasenko
function old new delta copy_file 1565 1447 -118 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-118) Total: -118 bytes text data bss dec hex filename 770938 1063 10788 782789 bf1c5 busybox_old 770814 1063 10788 782665 bf149 busybox_unstripped
2007-08-24cp: make POSIX-me-harder mode complain with a bit less insane messageDenis Vlasenko
2007-06-20do not do utime() on links, it acts on link targets, and we don't want that.Denis Vlasenko
rename link_name to link_target, less confusing this way.
2007-04-12style fixes. No code changesDenis Vlasenko
2007-04-11bb_full_fd_action: remove potential xmalloc from NOFORK pathDenis Vlasenko
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
2007-03-20fix accumulated whitespace and indentation damageDenis Vlasenko
2007-03-15copy_file: comment out one condition which is always false.Denis Vlasenko
Add comment explaining POSIX rules for cp - and why these rules are dangerous. Provide conditionally compiled code for both POSIX and safe behaviors, select safe for now. Code shrunk by ~80 bytes.
2007-03-14stop using big static buffer for inode hashDenis Vlasenko
2007-03-12introduce and use setfscreatecon_or_dieDenis Vlasenko
(patch by Yuichi Nakamura <ynakam@hitachisoft.jp>) runcon: *yet another* fix for vda's brainfart :(
2007-03-10selinux support by Yuichi Nakamura <ynakam@hitachisoft.jp> (HitachiSoft)Denis Vlasenko
2007-02-11syslogd: fix "readpath bug" by using readlink insteadDenis Vlasenko
libbb: rename xgetcwd and xreadlink
2007-01-11Trailing whitespace removal over entire treeDenis Vlasenko
2006-10-21cp: add support for -s, -l. Fix free(nonmalloc) bug.Denis Vlasenko
Add doc on POSIX's rules on -i and -f (insane!). ln: make "ln dangling_symlink new_link" work.
2006-10-03bb_applet_name -> applet_nameDenis Vlasenko
2006-08-03Remove bb_ prefixes from xfuncs.c (and a few other places), consolidateRob Landley
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.)
2006-06-24The logic to make cp -d or -P treat things like regular files should onlyRob Landley
trigger for symlinks, not for device nodes. This should fix "cp -a /dev ." to work as expected (when run by root, anyway). While I was there, cleanup headers and make an #ifdef go away...
2006-06-13Random cleanup of platform.h.Rob Landley
2006-04-12- add and use bb_opendir(), bb_xopendir().Bernhard Reutner-Fischer
text data bss dec hex filename 889445 9392 1035784 1934621 1d851d busybox.gcc-4.2.orig 889297 9392 1035784 1934473 1d8489 busybox.gcc-4.2 889009 9820 1037860 1936689 1d8d31 busybox.gcc-4.1.orig 888817 9820 1037860 1936497 1d8c71 busybox.gcc-4.1
2006-04-03- move buffer allocation schemes to libbb.hBernhard Reutner-Fischer
- include the correct headers: applets need busybox.h while lib* need libbb.h
2006-03-14Attempt to make a warning go away without increasing size.Rob Landley
2006-01-25just whitespaceTim Riker
2005-11-01Fix cp /dev/null filename, and a few in-passing cleanups.Rob Landley
2005-07-19applying fix for:Paul Fox
0000117: Remove linefeed after overwrite prompt using cp -i User input not on the same line as the prompt when about to overwrite a file.
generated by cgit v1.1 at 2024-11-01 16:36:17 +0000