Properly check for overflow in offsets

This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2013-06-10 10:10:06 -04:00
parent 3001c74580
commit b32ff51219
2 changed files with 53 additions and 4 deletions
+39
View File
@@ -439,6 +439,44 @@ static void test_protect_errno(void) {
assert(errno == 12);
}
static void test_parse_bytes(void) {
off_t bytes;
assert_se(parse_bytes("111", &bytes) == 0);
assert_se(bytes == 111);
assert_se(parse_bytes(" 112 B", &bytes) == 0);
assert_se(bytes == 112);
assert_se(parse_bytes("3 K", &bytes) == 0);
assert_se(bytes == 3*1024);
assert_se(parse_bytes(" 4 M 11K", &bytes) == 0);
assert_se(bytes == 4*1024*1024 + 11 * 1024);
assert_se(parse_bytes("3B3G", &bytes) == 0);
assert_se(bytes == 3ULL*1024*1024*1024 + 3);
assert_se(parse_bytes("3B3G4T", &bytes) == 0);
assert_se(bytes == (4ULL*1024 + 3)*1024*1024*1024 + 3);
assert_se(parse_bytes("12P", &bytes) == 0);
assert_se(bytes == 12ULL * 1024*1024*1024*1024*1024);
assert_se(parse_bytes("3E 2P", &bytes) == 0);
assert_se(bytes == (3 * 1024 + 2ULL) * 1024*1024*1024*1024*1024);
assert_se(parse_bytes("12X", &bytes) == -EINVAL);
assert_se(parse_bytes("1024E", &bytes) == -ERANGE);
assert_se(parse_bytes("-1", &bytes) == -ERANGE);
assert_se(parse_bytes("-1024E", &bytes) == -ERANGE);
assert_se(parse_bytes("-1024P", &bytes) == -ERANGE);
assert_se(parse_bytes("-10B 20K", &bytes) == -ERANGE);
}
int main(int argc, char *argv[]) {
test_streq_ptr();
test_first_word();
@@ -467,6 +505,7 @@ int main(int argc, char *argv[]) {
test_u64log2();
test_get_process_comm();
test_protect_errno();
test_parse_bytes();
return 0;
}