From fa0022d2762f0da34d08b09de4100ffcc6fbef74 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Tue, 25 Oct 2011 15:21:49 +0200 Subject: [PATCH] kvm tools: Avoid overwriting socket files with same name This patch prevents overwriting socket files by running two instances with the same name. Reported-by: Osier Yang Signed-off-by: Sasha Levin Signed-off-by: Pekka Enberg --- kvm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kvm.c b/kvm.c index 6f1f107..f470c17 100644 --- a/kvm.c +++ b/kvm.c @@ -157,6 +157,9 @@ static int kvm__create_socket(struct kvm *kvm) sprintf(full_name, "%s", kvm__get_dir()); mkdir(full_name, 0777); sprintf(full_name, "%s/%s.sock", kvm__get_dir(), kvm->name); + if (access(full_name, F_OK) == 0) + die("Socket file %s already exist", full_name); + s = socket(AF_UNIX, SOCK_STREAM, 0); if (s < 0) return s;