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proc-cmdline: introduce new proc_cmdline_get_key_many() helper

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This is like parse_env_file(), but from the kernel command line
This commit is contained in:
Lennart Poettering
2018-11-14 17:01:54 +01:00
parent 1e7a599671
commit 78b30ee056
3 changed files with 78 additions and 0 deletions
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src/test/test-proc-cmdline.c
+19
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@@ -135,6 +135,24 @@ static void test_proc_cmdline_get_bool(void) {
assert_se(proc_cmdline_get_bool("quux", &value) == -EINVAL && value == false);
}
static void test_proc_cmdline_get_key_many(void) {
_cleanup_free_ char *value1 = NULL, *value2 = NULL, *value3 = NULL, *value4 = NULL;
log_info("/* %s */", __func__);
assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar=quux wuff-piep=tuet zumm") == 0);
assert_se(proc_cmdline_get_key_many(0,
"wuff-piep", &value3,
"foo_bar", &value1,
"idontexist", &value2,
"zumm", &value4) == 2);
assert_se(streq_ptr(value1, "quux"));
assert_se(!value2);
assert_se(streq_ptr(value3, "tuet"));
assert_se(!value4);
}
static void test_proc_cmdline_key_streq(void) {
log_info("/* %s */", __func__);
@@ -199,6 +217,7 @@ int main(void) {
test_proc_cmdline_key_startswith();
test_proc_cmdline_get_key();
test_proc_cmdline_get_bool();
test_proc_cmdline_get_key_many();
test_runlevel_to_target();
return 0;