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sideband: fix leaks when configuring sideband colors

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We read a bunch of configs in `use_sideband_colors()` to configure the
colors that Git should use. We never free the strings read from the
config though, causing memory leaks.

Refactor the code to use `git_config_get_string_tmp()` instead, which
does not allocate memory. As we throw the strings away after parsing
them anyway there is no need to use allocated strings.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2024-08-22 11:17:49 +02:00 committed by Junio C Hamano
parent a09efb74e3
commit 2a2d5da1f2
2 changed files with 8 additions and 8 deletions
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15
sideband.c
View file

@ -30,28 +30,27 @@ static int use_sideband_colors(void)
const char *key = "color.remote";
struct strbuf sb = STRBUF_INIT;
char *value;
const char *value;
int i;
if (use_sideband_colors_cached >= 0)
return use_sideband_colors_cached;
if (!git_config_get_string(key, &value)) {
if (!git_config_get_string_tmp(key, &value))
use_sideband_colors_cached = git_config_colorbool(key, value);
} else if (!git_config_get_string("color.ui", &value)) {
else if (!git_config_get_string_tmp("color.ui", &value))
use_sideband_colors_cached = git_config_colorbool("color.ui", value);
} else {
else
use_sideband_colors_cached = GIT_COLOR_AUTO;
}
for (i = 0; i < ARRAY_SIZE(keywords); i++) {
strbuf_reset(&sb);
strbuf_addf(&sb, "%s.%s", key, keywords[i].keyword);
if (git_config_get_string(sb.buf, &value))
continue;
if (color_parse(value, keywords[i].color))
if (git_config_get_string_tmp(sb.buf, &value))
continue;
color_parse(value, keywords[i].color);
}
strbuf_release(&sb);
return use_sideband_colors_cached;
}

1
t/t5409-colorize-remote-messages.sh
View file

@ -2,6 +2,7 @@
test_description='remote messages are colorized on the client'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '