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path: root/util-linux/switch_root.c
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2017-04-17Spelling fixes in comments, documentation, tests and examplesDenys Vlasenko
By klemens <ka7@github.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-24switch_root: don't bail out when console doesn't existAndrei Gherzan
Busybox is very often used in initramfs at the end of which usually there is a switch_root to the actual rootfs. There are many cases where the console kernel argument is either just a placeholder (for example RaspberryPi uses serial0 and serial1) or configured as null to avoid any console messages - usually you would see such of a setup in production environments. Currently busybox bails out if can't open the console argument. If this happenes in initramfs and if the console=null for example, you get in a blind kernel panic. Avoid this by only warning instead of dying. function old new delta switch_root_main 371 368 -3 Signed-off-by: Andrei Gherzan <andrei@gherzan.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all util-linux/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-13typo fix in commentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-08libbb: make xchroot do a chdir("/") after chrootDenys 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>
2011-04-11move remaining help text from include/usage.src.hPere Orga
Signed-off-by: Pere Orga <gotrunks@gmail.com> 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>
2009-12-15switch_root: more clear error messagesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-08move libc related stuff out of platform.hDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-17switch_root: allow /init to be a symlink; add doc (thanks Rob!)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-04-21switch_root: move misplaced commentDenis Vlasenko
2009-04-21switch_root: improve behavior on error; improve help textDenis Vlasenko
*: make "can't execute '%s'" message uniform
2009-04-21switch_root: print errno on failureDenis Vlasenko
2008-07-11switch_root: shrinkDenis Vlasenko
function old new delta switch_root_main 402 401 -1 rootdev 8 - -8 delete_contents 226 179 -47 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-56) Total: -56 bytes
2008-07-05*: rename ATTRIBUTE_XXX to just XXX.Denis Vlasenko
2008-05-13more -Wall warning fixes from Cristian Ionescu-Idbohrn.Denis Vlasenko
This time it resulted in small code changes: function old new delta nexpr 820 828 +8 tail_main 1200 1202 +2 wrapf 166 167 +1 parse_mount_options 227 209 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 11/-18) Total: -7 bytes
2008-03-17*: add -Wunused-parameter; fix resulting breakageDenis Vlasenko
function old new delta procps_scan 1265 1298 +33 aliascmd 278 283 +5 parse_file_cmd 116 120 +4 dname_enc 373 377 +4 setcmd 90 93 +3 execcmd 57 60 +3 count_lines 72 74 +2 process_command_subs 340 339 -1 test_main 409 407 -2 mknod_main 179 177 -2 handle_incoming_and_exit 2653 2651 -2 argstr 1312 1310 -2 shiftcmd 131 128 -3 exitcmd 46 43 -3 dotcmd 297 294 -3 breakcmd 86 83 -3 evalpipe 353 349 -4 evalcommand 1180 1176 -4 evalcmd 109 105 -4 send_tree 374 369 -5 mkfifo_main 82 77 -5 evalsubshell 152 147 -5 typecmd 75 69 -6 letcmd 61 55 -6 add_cmd 1190 1183 -7 main 891 883 -8 ash_main 1415 1407 -8 parse_stream 1377 1367 -10 alloc_procps_scan 55 - -55 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148) Total: -94 bytes text data bss dec hex filename 797195 658 7428 805281 c49a1 busybox_old 797101 658 7428 805187 c4943 busybox_unstripped
2008-02-25lpd: spool mode added by VladimirDenis Vlasenko
lpr: more robust error reporting *: introduce and use xchroot libbb: full_read/write now will report partial data counts prior to error isdirectory.c: style fixes lpd_main 249 486 +237 xchroot - 29 +29 get_response_or_say_and_die 110 139 +29 full_write 52 60 +8 full_read 55 63 +8 static.newline 1 - -1 switch_root_main 404 400 -4 chpst_main 1089 1079 -10 getopt32 1370 1359 -11 chroot_main 115 101 -14 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 4/4 up/down: 311/-40) Total: 271 bytes text data bss dec hex filename 798472 728 7484 806684 c4f1c busybox_old 798775 728 7484 806987 c504b busybox_unstripped
2008-02-13switch_root: stop at first non-option. Closes bug 1425.Denis Vlasenko
2007-10-11add -fvisibility=hidden to CC flags, mark XXX_main functionsDenis Vlasenko
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
2007-08-18don't pass argc in getopt32, it's superfluousDenis Vlasenko
(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
2007-05-26usage.c: remove reference to busybox.hDenis Vlasenko
*: s/include "busybox.h"/include "libbb.h"
2007-04-18switch_root: error_msg -> perror_msg, reduce by 22 bytes while at it.Denis Vlasenko
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
2007-04-04- sed -e "s/char[[:space:]]*\*[[:space:]]*argv\[\]/char **argv/g"Bernhard Reutner-Fischer
2007-02-03suppress warnings about easch <applet>_main() havingDenis Vlasenko
no preceding prototype
2007-01-29preparatory patch for -Wwrite-strings #2Denis Vlasenko
2006-11-01mostly style fixesDenis Vlasenko
2006-10-20message string changes, mostly for consistency, also -32 bytes in .rodataDenis Vlasenko
2006-10-03getopt_ulflags -> getopt32.Denis Vlasenko
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.
2006-09-22Change license statements (and clean up headers) on some of the files thatRob Landley
Erik or I are primary copyright holders on.
2006-07-02Standardize on the vi editing directives being on the first line."Robert P. J. Day"
2006-06-15Patch from Yann Morin to put BLKGETSIZE64 in platform.h had rather a lot ofRob Landley
fallout due to the #include <sys/mount.h>. Removed that #include from various applets and fixed up those that were unhappy when that #include was made because they'd block copied stuff out of it. (Sigh.)
2006-05-10Shut up the warning "implicit declaration of strlen".Rob Landley
2006-03-21Fix missing copyright and license notice.Rob Landley
2006-03-20Use lstat() instead of stat so /init being a symlink doesn't screw people up.Rob Landley
(And use it consistently, for size reasons.)
2006-02-14Fix off by one error. (I know I had a reason for doing that, but I have _no_Rob Landley
idea what it was...)
2006-01-25just whitespaceTim Riker
2005-12-20Fix chroot, leave console alone if -c not specified, and yank debug code.Rob Landley
(I still haven't set up a test environment to confirm this works...)
2005-10-27Add a switch_root utility (like kconfig's utils/run_init.c, although notRob Landley
actuall using any of that code). This is needed because pivot_root doesn't work right under initramfs. (See the menuconfig help.)
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