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-rwxr-xr-xscripts/simpletrace.py10
1 files changed, 7 insertions, 3 deletions
diff --git a/scripts/simpletrace.py b/scripts/simpletrace.py
index 4ca903dc0c..4c990047b6 100755
--- a/scripts/simpletrace.py
+++ b/scripts/simpletrace.py
@@ -73,10 +73,14 @@ def read_record(edict, idtoname, fobj):
def read_trace_header(fobj):
"""Read and verify trace file header"""
header = read_header(fobj, log_header_fmt)
- if header is None or \
- header[0] != header_event_id or \
- header[1] != header_magic:
+ if header is None:
raise ValueError('Not a valid trace file!')
+ if header[0] != header_event_id:
+ raise ValueError('Not a valid trace file, header id %d != %d' %
+ (header[0], header_event_id))
+ if header[1] != header_magic:
+ raise ValueError('Not a valid trace file, header magic %d != %d' %
+ (header[1], header_magic))
log_version = header[2]
if log_version not in [0, 2, 3, 4]: