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