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2017-07-17hush: HUSH_READONLY depends on HUSHDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17hush: forgot to emit error on (failing) second "readonly VAR=VAL"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17hush: smaller code in !READONLY configsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17hush: implement "readonly" builtinDenys Vlasenko
function old new delta builtin_readonly - 70 +70 helper_export_local 152 174 +22 bltins1 348 360 +12 expand_one_var 1620 1625 +5 builtin_export 168 173 +5 set_pwd_var 36 40 +4 set_local_var 410 414 +4 set_vars_and_save_old 85 88 +3 set_local_var_from_halves 24 27 +3 run_pipe 1551 1554 +3 run_list 1046 1048 +2 builtin_type 116 114 -2 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 10/1 up/down: 133/-2) Total: 131 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17ash: more general format ${var:EXPR:EXPR}Denys Vlasenko
function old new delta subevalvar 1171 1202 +31 localcmd 364 366 +2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17ash: "you disabled math" is wrong: user did not disable it, builder of ash didDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17hush: small fix to last commitDenys Vlasenko
die_if_script() indeed dies only in scripts! Must handle the case where it continues. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17hush: support ${VAR:N:-M}Denys Vlasenko
function old new delta expand_one_var 1602 1615 +13 builtin_type 114 116 +2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-17shells: expand TODO comments, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-16ttysize: if stdin is not tty, try stdout, then stderrDenys Vlasenko
function old new delta ttysize_main 135 175 +40 packed_usage 31686 31672 -14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-16hush: fix "cmd1 && cmd2 &" handling on NOMMUDenys Vlasenko
function old new delta done_pipe 234 238 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-16arch: new applet (same as unmae -m). ~30 bytes.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15shell: and_or_and_backgrounding.tests is no longer "UNFIXED BUG"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15hush: fix and_or_and_backgrounding.tests failureDenys Vlasenko
function old new delta done_pipe 133 218 +85 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: reorder items in "Busybox Settings", improve helpDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: merge "Busybox Settings" and "Busybox Library Tuning" into one menuDenys Vlasenko
Tweak a few help texts while at it Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15Move get_unaligned_le32() macros to platform.hDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15fix more instances of ": $((a++))" in shell scriptsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15make_single_applets: fix ": $((fail++))" expansion errorKang-Che Sung
$((fail++)) is not a required expression in POSIX, and in "dash" it could produce an error like this: ./make_single_applets.sh: 61: arithmetic expression: expecting primary: "fail++" Replace this with something portable: fail=$((fail+1)) would work. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: fix tab-damaged help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15tls: remove last int16 local variables in pstm codeDenys Vlasenko
function old new delta pstm_mul_comba 439 447 +8 pstm_sqr_comba 475 478 +3 pstm_montgomery_reduce 399 381 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 11/-18) Total: -7 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15tls: fix pstm asm constraint problemDenys Vlasenko
function old new delta pstm_sqr_comba 551 475 -76 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15build system: FEATURE_LIBBUSYBOX_STATIC - try to pull libc/libm into libbusyboxDenys Vlasenko
It variously fails with different toolchains I tried... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15blkdiscard: provide our own BLK[SEC]DISCARD if necessaryDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15tls: fix build problem on non-static i386Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15Makefile: include per-arch Makefile before Makefile.flagsThomas Petazzoni
Makefile.flags contains: ARCH_FPIC ?= -fpic ARCH_FPIE ?= -fpie However, arch/$(ARCH)/Makefile gets included *after* Makefile.flags, and therefore doesn't get the chance to provide its own value. Fix this by including arch/$(ARCH)/Makefile *before* Makefile.flags. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15copyfd: guard use of munmap() with #if (windows builds need this)Johannes Schindelin
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15ash: protect WIFSTOPPED use with #if JOBSJohannes Schindelin
This change fixes the build in setups where there are no headers defining WIFSTOPPED and WSTOPSIG (where JOBS has to be set to 0). This partially reverts 4700fb5be (ash: make dowait() a bit more readable. Logic is unchanged, 2015-10-09). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14libbb: hide getnetbyaddr() inside "#if ENABLE_FEATURE_ETC_NETWORKS" blockDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14hush: make "wait %1" work even if the job is deadDenys Vlasenko
Example script: sleep 1 | (sleep 1;exit 3) & sleep 2 echo Zero:$? wait %1 echo Three:$? function old new delta clean_up_last_dead_job - 24 +24 process_wait_result 426 447 +21 builtin_wait 285 293 +8 insert_job_into_table 264 269 +5 builtin_jobs 68 73 +5 remove_job_from_table 59 57 -2 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 4/1 up/down: 63/-2) Total: 61 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14hush: remove superfluous comparisonDenys Vlasenko
function old new delta builtin_wait 291 285 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14uuencode: allow space instead of "`" as padding char. Closes 10046Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14xxd: allow "-" as file name meaning stdinDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14libbb/dump: allow skipping over stdin tooDenys Vlasenko
function old new delta next 294 265 -29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14libbb/dump: fix a few broken commits and shrink codeDenys Vlasenko
function old new delta next 310 294 -16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14libbb: safe_write should not return EINTRDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14dd: fix status=none. Closes 10066Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14hush: add support for "set -e"Denys Vlasenko
function old new delta run_list 978 1046 +68 o_opt_strings 24 32 +8 reset_traps_to_defaults 136 142 +6 pick_sighandler 57 60 +3 packed_usage 31772 31770 -2 hush_main 983 961 -22 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/2 up/down: 85/-24) Total: 61 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14cat: fix "cat -An" ignoring -n; make numbering go througn all filesDenys Vlasenko
function old new delta cat_main 418 428 +10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14add-remove-shell: fix crash when shell is already addedTimo Teräs
Avoid dereferencing 'don_add' in strcmp since it is invalid pointer. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-14cat: allow compiling out -n and -bKang-Che Sung
When these options were introduced in d88f94a5df3a2edb8ba56fab5c13674b452f87ab it provides no config options to compile them out. Now provide one. Introduce config FEATURE_CATN. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-11unzip: TODO for symlink supportDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-10inetd,mount: do not die if uclibc without RPC is detectedDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-10hush: add TODO for "set -e"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-10hush: simplify insert_job_into_table() a bitDenys Vlasenko
function old new delta done_word 767 761 -6 insert_job_into_table 325 264 -61 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 59/-126) Total: -67 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-10hush: rename a few functionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-10libbb: do not die if setgid/setuid(real_id) on startup failsDenys Vlasenko
Based on a patch from Steven McDonald <steven@steven-mcdonald.id.au>: This makes 'unshare --user' work correctly in the case where the user's shell is provided by busybox itself. 'unshare --user' creates a new user namespace without any uid mappings. As a result, /bin/busybox is setuid nobody:nogroup within the namespace, as that is the only user. However, since no uids are mapped, attempting to call setgid/setuid fails, even though this would do nothing: $ unshare --user ./busybox.broken ash ash: setgid: Invalid argument 'unshare --map-root-user' still works, but because Linux only allows uid/gid mappings to be set up once, creating a root mapping makes such a namespace useless for creating multi-user containers. With this patch, setgid and setuid will not be called in the case where they would do nothing, which is always the case inside a new user namespace because all uids are effectively mapped to nobody: $ id -u 1000 $ ls -lh busybox.fixed -rwsr-xr-x 1 root root 826.2K May 21 00:33 busybox.fixed $ unshare --user ./busybox.fixed ash $ id -u 65534 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-09shuf: fix random line selection. Closes 9971Denys Vlasenko
""" For example, given input file: foo bar baz after shuffling the input file, foo will never end up back on the first line. This came to light when I ran into a use-case where someone was selecting a random line from a file using shuf | head -n 1, and the results on busybox were showing a statistical anomaly (as in, the first line would never ever be picked) vs the same process running on environments that had gnu coreutils installed. On line https://git.busybox.net/busybox/tree/coreutils/shuf.c#n56 it uses r %= i, which will result in 0 <= r < i, while the algorithm specifies 0 <= r <= i. """ Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-09crond: code shrinkDenys Vlasenko
function old new delta load_crontab 936 925 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-09crond: move misplaced commentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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