[PATCH 0/1] Exit on invalid diff status of diff_filepair

Hi all,

Git showed that object files were empty, so I manually removed them. After removing a few object files, I ran `git diff` and I got a segfault.

I have since narrowed down the source of the error to a usage of `diff_filepair`. I also noticed that the `status` field of `diff_filepair` does not get set and stays a zero value. My fix is to check for that invalid status character and exit gracefully with an error message.

I modeled the behavior of this patch after what `git log` does in the same situation. `git log` will exit with a message that reads `bad object HEAD`.

I initially found this segfault when using git while working on a school assignment. I am really interested in helping fix this segfault. I'd be happy to hear any feedback.

Thank you!

Jake Roggenbuck (1):
  Exit on invalid diff status of diff_filepair

 diff.c | 4 ++++
 1 file changed, 4 insertions(+)