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ash: fix var_leak testcase
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -1,2 +1,3 @@
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should be empty: ''
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should be empty: ''
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should be not empty: 'val2'
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should be not empty: 'val3'
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@ -1,9 +1,18 @@
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# This currently fails with CONFIG_FEATURE_SH_NOFORK=y
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# true is a regular builtin, varibale should not leak out of it
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# this currently fails with CONFIG_FEATURE_SH_NOFORK=y
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VAR=''
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VAR=qwe true
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VAR=val1 true
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echo "should be empty: '$VAR'"
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# This fails (always)
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# ash follows the "special builtin leaks variables" rule here:
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# exec is a special builtin. (bash does not do it)
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VAR=''
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VAR=qwe exec 2>&1
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echo "should be empty: '$VAR'"
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VAR=val2 exec 2>&1
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echo "should be not empty: '$VAR'"
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# ash follows the "function call is a special builtin" rule here
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# (bash does not do it)
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f() { true; }
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VAR=''
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VAR=val3 f
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echo "should be not empty: '$VAR'"
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