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busybox/shell/hush_test/hush-psubst/emptytick.tests

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hush: handle empty execs Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-18 01:11:45 -04:00
true; ``; echo $?
false; ``; echo $?
hush: fix handling of empty arguments function old new delta builtin_exec 25 83 +58 parse_stream 2242 2261 +19 run_pipe 1782 1787 +5 static.pseudo_null_str - 3 +3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-18 11:46:35 +02:00
# UNFIXED BUG. bash sets $? to 127:
hush: handle empty execs Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-18 01:11:45 -04:00
true; `""`; echo $?
hush: fix handling of empty arguments function old new delta builtin_exec 25 83 +58 parse_stream 2242 2261 +19 run_pipe 1782 1787 +5 static.pseudo_null_str - 3 +3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-18 11:46:35 +02:00
# bash sets $? to 127:
hush: handle empty execs Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-18 01:11:45 -04:00
false; `""`; echo $?
true; ` `; echo $?
false; ` `; echo $?
true; $(); echo $?
false; $(); echo $?
hush: fix handling of empty arguments function old new delta builtin_exec 25 83 +58 parse_stream 2242 2261 +19 run_pipe 1782 1787 +5 static.pseudo_null_str - 3 +3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-18 11:46:35 +02:00
# bash sets $? to 127:
hush: handle empty execs Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-18 01:11:45 -04:00
true; $(""); echo $?
hush: fix handling of empty arguments function old new delta builtin_exec 25 83 +58 parse_stream 2242 2261 +19 run_pipe 1782 1787 +5 static.pseudo_null_str - 3 +3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-18 11:46:35 +02:00
# bash sets $? to 127:
hush: handle empty execs Sometimes variable expansions yield empty strings, and if they happen to be a command someone wants to run like `$foo`, then hush currently segfaults. So handle `` and $(). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-18 01:11:45 -04:00
false; $(""); echo $?
true; $( ); echo $?
false; $( ); echo $?
hush: fix handling of empty arguments function old new delta builtin_exec 25 83 +58 parse_stream 2242 2261 +19 run_pipe 1782 1787 +5 static.pseudo_null_str - 3 +3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0) Total: 85 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-18 11:46:35 +02:00
exec ''; echo $?
echo Not reached
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