39 lines
2.1 KiB
Plaintext
Executable File
39 lines
2.1 KiB
Plaintext
Executable File
# This test can fail with libc with buggy getopt() implementation.
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# If getopt() wants to parse multi-option args (-abc),
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# it needs to remember a position within current arg.
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#
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# If this position is kept as a POINTER, not an offset,
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# and if argv[] ADDRESSES (not contents!) change, it blows up.
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echo "*** optstring:'ac' args:-a -b -c -d e"
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getopts "ac" var -a -b -c -d e; echo "1 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts "ac" var -a -b -c -d e; echo "2 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts "ac" var -a -b -c -d e; echo "3 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts "ac" var -a -b -c -d e; echo "4 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts "ac" var -a -b -c -d e; echo "5 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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# Above: args are (usually) in the same locations in memory.
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# Below: variable allocations change the location.
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echo
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echo "*** optstring:'ac' args:-a -b -c -d e"
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unset OPTIND
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OPTARG=QWERTY; getopts "ac" var -a -b -c -d e; echo "1 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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NEWVAR=NEWVAL; getopts "ac" var -a -b -c -d e; echo "2 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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VAR111=NEWVAL; getopts "ac" var -a -b -c -d e; echo "3 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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VAR222=NEWVAL; getopts "ac" var -a -b -c -d e; echo "4 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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VAR333=NEWVAL; getopts "ac" var -a -b -c -d e; echo "5 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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# Slightly different attempts to force reallocations
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echo
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echo "*** optstring:'ac' args:-a -b -c -d e"
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unset OPTIND
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export OPTARG; getopts "ac" var -a -b -c -d e; echo "1 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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export NEWVAR; getopts "ac" var -a -b -c -d e; echo "2 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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export VAR111; getopts "ac" var -a -b -c -d e; echo "3 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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export VAR222; getopts "ac" var -a -b -c -d e; echo "4 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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export VAR333; getopts "ac" var -a -b -c -d e; echo "5 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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# All copies of code above should generate identical output
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