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* Be stricter in verifying store paths.

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This commit is contained in:
Eelco Dolstra 2004-04-14 08:08:55 +00:00
parent 87bf541f23
commit a4d2b22c8c
3 changed files with 9 additions and 4 deletions
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1
src/libstore/normalise.cc
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@ -335,6 +335,7 @@ void ensurePath(const Path & path, PathSet pending)
StoreExpr storeExprFromPath(const Path & path, PathSet pending)
{
assertStorePath(path);
ensurePath(path, pending);
ATerm t = ATreadFromNamedFile(path.c_str());
if (!t) throw Error(format("cannot read aterm from `%1%'") % path);

9
src/libstore/store.cc
View File

@ -160,13 +160,14 @@ void copyPath(const Path & src, const Path & dst)
static bool isInStore(const Path & path)
{
return path[0] == '/'
&& Path(path, 0, nixStore.size()) == nixStore
&& path.size() > nixStore.size() + 1
&& path[nixStore.size()] == '/';
&& path.compare(0, nixStore.size(), nixStore) == 0
&& path.size() >= nixStore.size() + 2
&& path[nixStore.size()] == '/'
&& path.find('/', nixStore.size() + 1) == Path::npos;
}
static void assertStorePath(const Path & path)
void assertStorePath(const Path & path)
{
if (!isInStore(path))
throw Error(format("path `%1%' is not in the Nix store") % path);

3
src/libstore/store.hh
View File

@ -48,6 +48,9 @@ Paths querySubstitutes(const Path & srcPath);
/* Register the validity of a path. */
void registerValidPath(const Transaction & txn, const Path & path);
/* Throw an exception if `path' is not directly in the Nix store. */
void assertStorePath(const Path & path);
/* Checks whether a path is valid. */
bool isValidPath(const Path & path);