static void test_skip_leading_chars(void) {
char input1[] = " \n \r k \n \r ",
input2[] = "kkkkthiskkkiskkkaktestkkk",
input3[] = "abcdef";
assert_se(streq(skip_leading_chars(input1, WHITESPACE), "k \n \r "));
assert_se(streq(skip_leading_chars(input2, "k"), "thiskkkiskkkaktestkkk"));
assert_se(streq(skip_leading_chars(input2, "tk"), "hiskkkiskkkaktestkkk"));
assert_se(streq(skip_leading_chars(input3, WHITESPACE), "abcdef"));
assert_se(streq(skip_leading_chars(input3, "bcaef"), "def"));
}
static int condition_test_kernel_version(Condition *c) {
enum {
/* Listed in order of checking. Note that some comparators are prefixes of others, hence the longest
* should be listed first. */
LOWER_OR_EQUAL,
GREATER_OR_EQUAL,
LOWER,
GREATER,
EQUAL,
_ORDER_MAX,
};
static const char *const prefix[_ORDER_MAX] = {
[LOWER_OR_EQUAL] = "<=",
[GREATER_OR_EQUAL] = ">=",
[LOWER] = "<",
[GREATER] = ">",
[EQUAL] = "=",
};
const char *p = NULL;
struct utsname u;
size_t i;
int k;
assert(c);
assert(c->parameter);
assert(c->type == CONDITION_KERNEL_VERSION);
assert_se(uname(&u) >= 0);
for (i = 0; i < _ORDER_MAX; i++) {
p = startswith(c->parameter, prefix[i]);
if (p)
break;
}
/* No prefix? Then treat as glob string */
if (!p)
return fnmatch(skip_leading_chars(c->parameter, NULL), u.release, 0) == 0;
k = str_verscmp(u.release, skip_leading_chars(p, NULL));
switch (i) {
case LOWER:
return k < 0;
case LOWER_OR_EQUAL:
return k <= 0;
case EQUAL:
return k == 0;
case GREATER_OR_EQUAL:
return k >= 0;
case GREATER:
return k > 0;
default:
assert_not_reached("Can't compare");
}
}
