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* Pass the actual build user to the setuid helper.

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This commit is contained in:
Eelco Dolstra 2006-12-07 11:27:32 +00:00
parent a45c498e4e
commit 7d8cf316ee
1 changed files with 10 additions and 22 deletions
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32
src/libstore/build.cc
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@ -340,6 +340,7 @@ private:
Path fnUserLock;
AutoCloseFD fdUserLock;
string user;
uid_t uid;
gid_t gid;
@ -350,10 +351,12 @@ public:
void acquire();
void release();
uid_t getUID();
uid_t getGID();
string getUser() { return user; }
uid_t getUID() { return uid; }
uid_t getGID() { return gid; }
bool enabled() { return uid != 0; }
bool enabled();
};
@ -420,6 +423,7 @@ void UserLock::acquire()
if (lockFile(fd, ltWrite, false)) {
fdUserLock = fd.borrow();
lockedPaths.insert(fnUserLock);
user = *i;
uid = pw->pw_uid;
/* Sanity check... */
@ -448,24 +452,6 @@ void UserLock::release()
}
uid_t UserLock::getUID()
{
return uid;
}
uid_t UserLock::getGID()
{
return gid;
}
bool UserLock::enabled()
{
return uid != 0;
}
static bool amPrivileged()
{
return geteuid() == 0;
@ -1351,6 +1337,7 @@ void DerivationGoal::startBuilder()
Path program = drv.builder.c_str();
std::vector<const char *> args; /* careful with c_str()! */
string user; /* must be here for its c_str()! */
/* If we are running in `build-users' mode, then switch to
the user we allocated above. Make sure that we drop
@ -1381,7 +1368,8 @@ void DerivationGoal::startBuilder()
program = nixLibexecDir + "/nix-setuid-helper";
args.push_back(program.c_str());
args.push_back("run-builder");
args.push_back("nix-builder-1"); /* !!! TODO */
user = buildUser.getUser().c_str();
args.push_back(user.c_str());
args.push_back(drv.builder.c_str());
}
}