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Tue, 13 Feb 2024 11:02:02 -0500 (EST) From: Kristoffer Haugsbakk To: git@vger.kernel.org Cc: Kristoffer Haugsbakk , Tiago Pascoal Subject: [PATCH v3 1/2] column: disallow negative padding Date: Tue, 13 Feb 2024 17:01:20 +0100 Message-ID: <4cac42ca6f8ade5e0200b9f16f1627f0796411d1.1707839454.git.code@khaugsbakk.name> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: <1c959378cf495d7a3d70d0c7bdf08cc501ed6e5d.1707679627.git.code@khaugsbakk.name> Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 A negative padding does not make sense and can cause errors in the memory allocator since it’s interpreted as an unsigned integer. Reported-by: Tiago Pascoal Signed-off-by: Kristoffer Haugsbakk --- builtin/column.c | 2 ++ t/t9002-column.sh | 11 +++++++++++ 2 files changed, 13 insertions(+) diff --git a/builtin/column.c b/builtin/column.c index e80218f81f9..10ff7e01668 100644 --- a/builtin/column.c +++ b/builtin/column.c @@ -45,6 +45,8 @@ int cmd_column(int argc, const char **argv, const char *prefix) memset(&copts, 0, sizeof(copts)); copts.padding = 1; argc = parse_options(argc, argv, prefix, options, builtin_column_usage, 0); + if (copts.padding < 0) + die(_("%s must be non-negative"), "--padding"); if (argc) usage_with_options(builtin_column_usage, options); if (real_command || command) { diff --git a/t/t9002-column.sh b/t/t9002-column.sh index 348cc406582..d5b98e615bc 100755 --- a/t/t9002-column.sh +++ b/t/t9002-column.sh @@ -196,4 +196,15 @@ EOF test_cmp expected actual ' +test_expect_success 'padding must be non-negative' ' + cat >input <<\EOF && +1 2 3 4 5 6 +EOF + cat >expected <<\EOF && +fatal: --padding must be non-negative +EOF + test_must_fail git column --mode=column --padding=-1 actual 2>&1 && + test_cmp expected actual +' + test_done