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Introduces an additional validation test.

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Thereby satisfying the TODO.
This commit is contained in:
Thomas Harte 2018-05-25 18:40:15 -04:00
parent 772812b35f
commit d45231c1a8
1 changed files with 7 additions and 1 deletions
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8
Storage/Disk/DiskImage/Formats/NIB.cpp
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@ -30,7 +30,13 @@ NIB::NIB(const std::string &file_name) :
throw Error::InvalidFormat;
}
// TODO: all other validation. I.e. does this look like a GCR disk?
// A real NIB should have every single top bit set. Yes, 1/8th of the
// file size is a complete waste. But it provides a hook for validation.
while(true) {
uint8_t next = file_.get8();
if(file_.eof()) break;
if(!(next & 0x80)) throw Error::InvalidFormat;
}
}
HeadPosition NIB::get_maximum_head_position() {