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authorRon Yorston2022-05-01 09:45:37 +0100
committerDenys Vlasenko2022-08-22 14:05:01 +0200
commit5a9d2b6e024e6c20d4d7b8c170985554c0df043d (patch)
tree5edc52e4c2e89e536750155c49fe6c9d6ca56f2b /util-linux
parent41d5f800a14769704082f7faeabb8435285499be (diff)
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libbb: make '--help' handling more consistent
Running an applet with '--help' as its only argument is treated as a special case. If additional arguments follow '--help' the behaviour is inconsistent: - applets which call single_argv() print help and do nothing else; - applets which call getopt() report "unrecognized option '--help'" and print help anyway; - expr says "expr: syntax error" and doesn't print help; - printenv silently ignores '--help', prints any other variables and doesn't print help; - realpath says "--help: No such file or directory", prints the path of any other files and doesn't print help. If the first argument is '--help' ignore any other arguments and print help. This is more consistent and most likely what the user wanted. See also commit 6bdfbc4cb (libbb: fix '--help' handling in FEATURE_SH_NOFORK=y). function old new delta show_usage_if_dash_dash_help 75 69 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-6) Total: -6 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux')
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