Re: [PATCH v21 0/1] MR7843: cmd: Implement tab completion for command line entry.

[eric pouech (＠epo)]

eric pouech (@epo) commented about programs/cmd/lineedit.c:
> +            }
> +            oldCurPos = curPos;
> +            curPos = 0;
> +            while (curPos < len &&
> +                   inputBuffer[curPos] != L'\t' &&
> +                   inputBuffer[curPos] != L'\x1B'
> +                   ) {
> +
> +                curPos++;
> +            }
> +            /* curPos is often numRead - 1, but not always, as in the case where history is retrieved
> +             * and then user backspaces to somewhere mid-string and then hits Tab.
> +             */
> +            TRACE("numRead: %lu, curPos: %u\n", *numRead, curPos);
> +
> +            switch (inputBuffer[curPos]) {
> looks to be that curPos can be \> \*numRead, hence reading garbage in that case

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https://gitlab.winehq.org/wine/wine/-/merge_requests/7843#note_101933