busybox-w32/shell/hush_test/hush-read/read_t.right, branch zstdA mirror of https://github.com/rmyorston/busybox-w32.git
https://git.lua4.win/busybox-w32/atom?h=zstd2025-07-01T18:21:37+00:00shell: improve bash compatibility of read built-in2025-07-01T18:21:37+00:00Ron Yorstonrmy@pobox.com2025-07-01T08:47:14+00:00urn:sha1:dcd8df258a402658ad1fdc018a245b06a610ca8d
Make the read built-in more compatible with bash:
- Return an exit code of 142 on timeout.
- When the timeout expires before a newline is detected in the
input bash captures the partial input. This behaviour is new
since bash version 4.4. BusyBox shells had the pre-4.4 behaviour
where the input was lost.
Update the tests to suit and fix a couple of compiler errors in
the testsuite.
function old new delta
builtin_read 154 174 +20
readcmd 213 228 +15
shell_builtin_read 1364 1370 +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 41/0) Total: 41 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
hush: use ash's read builtin2010-01-12T22:29:57+00:00Denys Vlasenkovda.linux@googlemail.com2010-01-12T22:29:57+00:00urn:sha1:03dad22f8a1b8b1410fdcccf69af1bb5cce4de7c
function old new delta
shell_builtin_read - 1000 +1000
set_local_var_from_halves - 24 +24
setvar2 - 7 +7
...
popstring 140 134 -6
ash_main 1375 1368 -7
setvar 184 174 -10
arith_set_local_var 36 - -36
builtin_read 1096 185 -911
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 5/23 up/down: 1038/-1007) Total: 31 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>