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* Change the ownership of the current directory to the build user.

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This commit is contained in:
Eelco Dolstra 2006-12-06 23:52:25 +00:00
parent 62ab131412
commit 79875c5e42
1 changed files with 16 additions and 3 deletions
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19
src/nix-setuid-helper/main.cc
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@ -23,9 +23,22 @@ using namespace nix;
static void secureChown(uid_t uidFrom, uid_t uidTo, gid_t gidTo, static void secureChown(uid_t uidFrom, uid_t uidTo, gid_t gidTo,
const Path & path) const Path & path)
{ {
/* Recursively chown `path' to the specified uid and gid, but only struct stat st;
if it is currently owned by the Nix account. */ if (lstat(path.c_str(), &st) == -1)
/* !!! */ throw SysError(format("statting of `%1%'") % path);
if (st.st_uid != uidFrom)
throw Error(format("path `%1%' owned by the wrong owner") % path);
if (lchown(path.c_str(), uidTo, gidTo) == -1)
throw SysError(format("changing ownership of `%1%'") % path);
if (S_ISDIR(st.st_mode)) {
Strings names = readDirectory(path);
for (Strings::iterator i = names.begin(); i != names.end(); ++i)
/* !!! recursion; check stack depth */
secureChown(uidFrom, uidTo, gidTo, path + "/" + *i);
}
} }