SZEDER Gábor <szeder.dev@xxxxxxxxx> writes:
> The parsing of '--early-output' with or without its optional integer
> argument allowed bogus options like '--early-output-foobarbaz' to slip
> through and be ignored.
>
> Fix it by parsing '--early-output' in the same way as other options
> with an optional argument are parsed. Furthermore, use strtoul_ui()
> to parse the optional integer argument and to refuse negative numbers.
>
> While at it, use skip_prefix() instead of starts_with() and magic
> numbers.
>
> Signed-off-by: SZEDER Gábor <szeder.dev@xxxxxxxxx>
> ---
> revision.c | 17 +++++++----------
> 1 file changed, 7 insertions(+), 10 deletions(-)
>
> diff --git a/revision.c b/revision.c
> index 2f37e1e3a..68531ff5d 100644
> --- a/revision.c
> +++ b/revision.c
> @@ -1785,16 +1785,13 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
> } else if (!strcmp(arg, "--author-date-order")) {
> revs->sort_order = REV_SORT_BY_AUTHOR_DATE;
> revs->topo_order = 1;
> - } else if (starts_with(arg, "--early-output")) {
> - int count = 100;
> - switch (arg[14]) {
> - case '=':
> - count = atoi(arg+15);
> - /* Fallthrough */
> - case 0:
> - revs->topo_order = 1;
> - revs->early_output = count;
> - }
This shows how correct patch 1/5 is, huh? It's kind of surprising
that nobody complained about the breakage since May 2011 which in
turn makes me suspect that early-output might not be missed if we
dropped it someday, but that is a separate issue. This series makes
it work as the feature was envisioned to.
Thanks.
> + } else if (!strcmp(arg, "--early-output")) {
> + revs->early_output = 100;
> + revs->topo_order = 1;
> + } else if (skip_prefix(arg, "--early-output=", &optarg)) {
> + if (strtoul_ui(optarg, 10, &revs->early_output) < 0)
> + die("'%s': not a non-negative integer", optarg);
> + revs->topo_order = 1;
> } else if (!strcmp(arg, "--parents")) {
> revs->rewrite_parents = 1;
> revs->print_parents = 1;