return 0;
}
-int main(int argc, char *argv[])
+static void tdb_flip_bit(struct tdb_context *tdb, unsigned int bit)
+{
+ unsigned int off = bit / CHAR_BIT;
+ unsigned char mask = (1 << (bit % CHAR_BIT));
+
+ if (tdb->map_ptr)
+ ((unsigned char *)tdb->map_ptr)[off] ^= mask;
+ else {
+ unsigned char c;
+ pread(tdb->fd, &c, 1, off);
+ c ^= mask;
+ pwrite(tdb->fd, &c, 1, off);
+ }
+}
+
+static void check_test(struct tdb_context *tdb)
{
- struct tdb_context *tdb;
TDB_DATA key, data;
unsigned int i, verifiable, corrupt, sizes[2], dsize, ksize;
- plan_tests(2);
- tdb = tdb_open("/tmp/test6.tdb", 2, TDB_CLEAR_IF_FIRST,
- O_CREAT|O_TRUNC|O_RDWR, 0600);
-
- if (!tdb)
- abort();
ok1(tdb_check(tdb, NULL, NULL) == 0);
key.dptr = (void *)"hello";
/* Flip one bit at a time, make sure it detects verifiable bytes. */
for (i = 0, corrupt = 0; i < tdb->map_size * CHAR_BIT; i++) {
- bit_flip(tdb->map_ptr, i);
+ tdb_flip_bit(tdb, i);
memset(sizes, 0, sizeof(sizes));
if (tdb_check(tdb, check, sizes) != 0)
corrupt++;
else if (sizes[0] != ksize || sizes[1] != dsize)
corrupt++;
- bit_flip(tdb->map_ptr, i);
+ tdb_flip_bit(tdb, i);
}
ok(corrupt == verifiable * CHAR_BIT, "corrupt %u should be %u",
corrupt, verifiable * CHAR_BIT);
+}
+
+int main(int argc, char *argv[])
+{
+ struct tdb_context *tdb;
+
+ plan_tests(4);
+ /* This should use mmap. */
+ tdb = tdb_open("/tmp/test6.tdb", 2, TDB_CLEAR_IF_FIRST,
+ O_CREAT|O_TRUNC|O_RDWR, 0600);
+
+ if (!tdb)
+ abort();
+ check_test(tdb);
+ tdb_close(tdb);
+
+ /* This should not. */
+ tdb = tdb_open("/tmp/test6.tdb", 2, TDB_CLEAR_IF_FIRST|TDB_NOMMAP,
+ O_CREAT|O_TRUNC|O_RDWR, 0600);
+
+ if (!tdb)
+ abort();
+ check_test(tdb);
tdb_close(tdb);
return exit_status();