@@ -0,0 +0,0 @@ default: - return -1; + return len != 4 && memcmp(line - len, "-- \n", len); }
You're never returning -1 here, right?
However, this will not work if anybody has a signature starting with "@@ ", "+", " ", "-" or "diff "...
I think that the main worry is the patches made with git-format-patch, and those are not problematic.
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