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* In `nix-store --export', abort if the contents of a path has

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changed.  This prevents corrupt paths from spreading to other
  machines.  Note that checking the hash is cheap because we're
  hashing anyway (because of the --sign feature).
This commit is contained in:
Eelco Dolstra 2010-03-09 14:32:03 +00:00
parent 44f6e6de77
commit 4c356acd04
3 changed files with 26 additions and 7 deletions
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7
src/libutil/hash.cc
View file

@ -289,6 +289,13 @@ HashSink::HashSink(HashType ht) : ht(ht)
start(ht, *ctx);
}
HashSink::HashSink(const HashSink & h)
{
ht = h.ht;
ctx = new Ctx;
*ctx = *h.ctx;
}
HashSink::~HashSink()
{
delete ctx;

3
src/libutil/hash.hh
View file

@ -96,6 +96,7 @@ private:
public:
HashSink(HashType ht);
HashSink(const HashSink & h);
~HashSink();
virtual void operator () (const unsigned char * data, unsigned int len);
Hash finish();
@ -104,5 +105,5 @@ public:
}
#endif /* !__HASH_H */