Fix RDB check regression caused by PR 12022 (#12051)

The nightly tests showed that the recent PR #12022 caused random failures
in aof.tcl on checking RDB preamble inside an AOF file.

Root cause:
When checking RDB preamble in an AOF file, what's passed into redis_check_rdb is
aof_filename, not aof_filepath. The newly introduced isFifo function does not check return
status of the stat call and hence uses the uninitailized stat_p object.

Fix:
1. Fix isFifo by checking stat call's return code.
2. Pass aof_filepath instead of aof_filename to redis_check_rdb.
3. move the FIFO check to rdb.c since the limitation is the re-opening of the file, and not
  anything specific about redis-check-rdb.

0 files changed, 0 insertions, 0 deletions