Re: [PATCH] sequencer.c: fix overflow & segfault in parse_strategy_opts()

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Junio C Hamano <gitster@xxxxxxxxx> writes:

> This made me look at split_cmdline_strerror().  It is a table lookup
> into split_cmdline_errors[] in alias.c which looks like this:
>
>     static const char *split_cmdline_errors[] = {
>             N_("cmdline ends with \\"),
>             N_("unclosed quote"),
>             N_("too many arguments"),
>     };
>
> So the result is properly localized, but I suspect that the string
> after : should not be enclosed within a pair of single quotes.
>
> 	die(_("could not split '%s': %s", strategy_opts_string,
> 		split_cmdline_strerror(count)));
>
> Other than that, nice find.

I'll queue this on top.

----- >8 ---------- >8 ---------- >8 ---------- >8 -----
Subject: [PATCH] SQUASH: no point in quoting strerror like messages

The error message is taken from a limited and fixed set of strings
and we do not usually enclose strerror(errno) inside a pair of
single quotes.
---
 sequencer.c                    | 2 +-
 t/t3436-rebase-more-options.sh | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sequencer.c b/sequencer.c
index cc59a1c491..e4a3f0081f 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -2885,7 +2885,7 @@ void parse_strategy_opts(struct replay_opts *opts, char *raw_opts)
 	count = split_cmdline(strategy_opts_string,
 			      (const char ***)&opts->xopts);
 	if (count < 0)
-		die(_("could not split '%s': '%s'"), strategy_opts_string,
+		die(_("could not split '%s': %s"), strategy_opts_string,
 			    split_cmdline_strerror(count));
 	opts->xopts_nr = count;
 	for (i = 0; i < opts->xopts_nr; i++) {
diff --git a/t/t3436-rebase-more-options.sh b/t/t3436-rebase-more-options.sh
index 195ace3455..c3184c9ade 100755
--- a/t/t3436-rebase-more-options.sh
+++ b/t/t3436-rebase-more-options.sh
@@ -42,7 +42,7 @@ test_expect_success 'setup' '
 
 test_expect_success 'bad -X <strategy-option> arguments: unclosed quote' '
 	cat >expect <<-\EOF &&
-	fatal: could not split '\''--bad'\'': '\''unclosed quote'\''
+	fatal: could not split '\''--bad'\'': unclosed quote
 	EOF
 	test_expect_code 128 git rebase -X"bad argument\"" side main >out 2>actual &&
 	test_must_be_empty out &&
@@ -51,7 +51,7 @@ test_expect_success 'bad -X <strategy-option> arguments: unclosed quote' '
 
 test_expect_success 'bad -X <strategy-option> arguments: bad escape' '
 	cat >expect <<-\EOF &&
-	fatal: could not split '\''--bad'\'': '\''cmdline ends with \'\''
+	fatal: could not split '\''--bad'\'': cmdline ends with \
 	EOF
 	test_expect_code 128 git rebase -X"bad escape \\" side main >out 2>actual &&
 	test_must_be_empty out &&
-- 
2.40.0-rc2




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