Should we validate that PID is a number for "taskset -ap PID"?
We don't actually need it, and pathological input like
"../../DIR_WITH_LOTS_OF_PIDS" can only cause "taskset"ing
of many pids. Which is something user can do anyway.
function old new delta
taskset_main 190 181 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Accepting nonsense like "--4", and even "-- -4" is confusing.
function old new delta
parse_expr 917 938 +21
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Was:
xxd: FILE: No such file or directory
xxd: FILE: Bad file descriptor
function old new delta
next 276 278 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
If the motion command used to define the range of a change, yank or
delete fails the whole command should be rejected. BusyBox vi already
handled failed searches in these circumstances. Add some more cases:
- non-existent mark: d'x
- movement beyond end of file: c99999+ or 99999<<
This is implemented using a global variable which is set when a command
error is detected. Unlike the case of motion within a line it's
insufficient to check that the motion command doesn't move the cursor:
this fails to process 'LyL' correctly, for example, as the second 'L'
doesn't move the cursor.
function old new delta
indicate_error 75 82 +7
find_range 686 692 +6
do_cmd 4851 4852 +1
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(add/remove: 0/0 grow/shrink: 3/0 up/down: 14/0) Total: 14 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
In traditional vi and vim line motion commands ('+'/'-'/'j'/'k')
fail if the movement would exceed the bounds of the file. BusyBox vi
allowed such commands to succeed, leaving the cursor on the first or
last character of the file.
Make BusyBox vi work like vi/vim.
For the 'G'/'H'/'L' commands traditional vi treats an out of bounds
result as an error, vim doesn't. BusyBox vi behaves like vim, both
before and after this patch.
function old new delta
do_cmd 4785 4851 +66
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(add/remove: 0/0 grow/shrink: 1/0 up/down: 66/0) Total: 66 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
When ESC is entered to leave insert mode any autoindent should only
be removed if there's no content beyond the indent. This may be the
case if a line has been split by entering insert mode and then
entering a CR.
Add a check to ensure there's only a newline after the indent.
function old new delta
char_insert 912 929 +17
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(add/remove: 0/0 grow/shrink: 1/0 up/down: 17/0) Total: 17 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Second reference to a field reallocs/moves Fields[] array, but first ref
still tries to use the element where it was before move.
function old new delta
fsrealloc 94 106 +12
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Testcase:
21 01 01 00 00 00 00 00 e7 01 01 01 ef 00 df b6
00 17 02 10 11 0f ff 00 16 00 00
Unfortunately, the bug is not reliably causing a segfault,
the behavior depends on what's in memory before the buffer.
function old new delta
unpack_lzma_stream 2762 2768 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
...and we did not error-check it, and this is the only use of it:
function old new delta
inet_addr 37 - -37
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Even though it is _meant to be_ an IP address, in the wild servers sometimes
give bogus server ids, like 1.1.1.1
function old new delta
udhcpc_main 2551 2542 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The default tabstop value should be set during early start up,
not reset for each new file.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
When no line number is specified ':read' should place the inserted
text after the current line, not before.
This used to be correct but was broken when commit 0c42a6b07
(vi: fix empty line range regression) revealed a bug in commit
7a8ceb4eb (vi: changes to line addresses for colon commands).
function old new delta
colon 3960 3952 -8
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(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-8) Total: -8 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The $RANDOM variable may be disabled on ash compilation but we can safelly use mktemp instead.
Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
On Sat, Feb 9, 2019 Cristian Ionescu-Idbohrn wrote:
> In my case (at work), I have to watch and prevent people from doing
> unportable things. For me, that's a burden.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Process substitution is a Korn shell feature that's also available
in bash and some other shells. This patch implements process
substitution in ash when ASH_BASH_COMPAT is enabled.
function old new delta
argstr 1386 1522 +136
strtodest - 52 +52
readtoken1 3346 3392 +46
.rodata 183206 183250 +44
unwindredir - 28 +28
cmdloop 365 372 +7
static.spclchars 10 12 +2
cmdputs 380 367 -13
exitreset 86 69 -17
evalcommand 1754 1737 -17
varvalue 675 634 -41
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(add/remove: 2/0 grow/shrink: 5/4 up/down: 315/-88) Total: 227 bytes
text data bss dec hex filename
953967 4219 1904 960090 ea65a busybox_old
954192 4219 1904 960315 ea73b busybox_unstripped
v2: Replace array of file descriptors with a linked list.
Include tests that were unaccountably omitted from v1.
v3: Update linked list code to the intended version.
v4: Change order of conditional code in cmdputs().
v5: Use existing popredir() mechanism to manage file descriptors.
v6: Rebase to latest version of BusyBox ash. Reduce code churn.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The SOURCE_DATE_EPOCH is an effort of the Reproducible Builds
organization to make timestamps/build dates in compiled tools
deterministic over several repetitive builds.
Busybox shows by default the build date timestamp which changes whenever
compiled. To have a reasonable accurate build date while staying
reproducible, it's possible to use the *date of last source
modification* rather than the current time and date.
Further information on SOURCE_DATE_EPOCH are available online [1].
This patch modifies `confdata.c` so that the content of the
SOURCE_DATE_EPOCH env variable is used as timestamp.
To be independent of different timezones between builds, whenever
SOURCE_DATE_EPOCH is defined the GMT time is used.
[1]: https://reproducible-builds.org/docs/source-date-epoch/
Signed-off-by: Paul Spooren <mail@aparcar.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The original commit 3bef5d89b0 introduced an additional check
for an unset `opt_d` before doing word splitting. I'm unsure
why it's there in the first place, but the commit message also
describes a different behaviour than what -d actually does in
bash, while the code mostly does the right thing.
`opt_d` sets the line delimiter for read to stop reading and
should not affect word splitting.
Testcase:
$ echo qwe rty | { read -d Z a b; echo a:$a b:$b; }
a:qwe b:rty
function old new delta
shell_builtin_read 1314 1304 -10
Signed-off-by: Eicke Herbertz <wolletd@posteo.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
