git.ozlabs.org Git - ccan/blob - ccan/tdb/test/run-bad-tdb-header.c

   1 #define _XOPEN_SOURCE 500
   2 #include <ccan/tdb/tdb.h>
   3 #include <ccan/tdb/io.c>
   4 #include <ccan/tdb/tdb.c>
   5 #include <ccan/tdb/lock.c>
   6 #include <ccan/tdb/freelist.c>
   7 #include <ccan/tdb/traverse.c>
   8 #include <ccan/tdb/transaction.c>
   9 #include <ccan/tdb/error.c>
  10 #include <ccan/tdb/open.c>
  11 #include <ccan/tdb/check.c>
  12 #include <ccan/tdb/hash.c>
  13 #include <ccan/tap/tap.h>
  14 #include <stdlib.h>
  15 #include <err.h>
  16 #include "logging.h"
  17
  18 int main(int argc, char *argv[])
  19 {
  20         struct tdb_context *tdb;
  21         struct tdb_header hdr;
  22         int fd;
  23
  24         plan_tests(11);
  25         /* Can open fine if complete crap, as long as O_CREAT. */
  26         fd = open("run-bad-tdb-header.tdb", O_RDWR|O_CREAT|O_TRUNC, 0600);
  27         ok1(fd >= 0);
  28         ok1(write(fd, "hello world", 11) == 11);
  29         close(fd);
  30         tdb = tdb_open_ex("run-bad-tdb-header.tdb", 1024, 0, O_RDWR, 0,
  31                           &taplogctx, NULL);
  32         ok1(!tdb);
  33         tdb = tdb_open_ex("run-bad-tdb-header.tdb", 1024, 0, O_CREAT|O_RDWR,
  34                           0600, &taplogctx, NULL);
  35         ok1(tdb);
  36         tdb_close(tdb);
  37
  38         /* Now, with wrong version it should *not* overwrite. */
  39         fd = open("run-bad-tdb-header.tdb", O_RDWR);
  40         ok1(fd >= 0);
  41         ok1(read(fd, &hdr, sizeof(hdr)) == sizeof(hdr));
  42         ok1(hdr.version == TDB_VERSION);
  43         hdr.version++;
  44         lseek(fd, 0, SEEK_SET);
  45         ok1(write(fd, &hdr, sizeof(hdr)) == sizeof(hdr));
  46         close(fd);
  47
  48         tdb = tdb_open_ex("run-bad-tdb-header.tdb", 1024, 0, O_RDWR|O_CREAT,
  49                           0600, &taplogctx, NULL);
  50         ok1(errno == EIO);
  51         ok1(!tdb);
  52
  53         /* With truncate, will be fine. */
  54         tdb = tdb_open_ex("run-bad-tdb-header.tdb", 1024, 0,
  55                           O_RDWR|O_CREAT|O_TRUNC, 0600, &taplogctx, NULL);
  56         ok1(tdb);
  57         tdb_close(tdb);
  58
  59         return exit_status();
  60 }