ustd: fix opening mode of pidfile to support writing to fifos

The fifo is opened in write-only in order to block until someone
opens it.

diff --git a/ustd/ustd.c b/ustd/ustd.c
index bfa6352e1ccf2b4063660ff279b007f29ec3702a..5a4569519b78138d3ed7c29fc985a58b7b8c1b33 100644 (file)
--- a/ustd/ustd.c
+++ b/ustd/ustd.c
@@ -545,7 +545,7 @@ static int write_pidfile(const char *file_name, pid_t pid)
 {
        FILE *pidfp;
 
-       pidfp = fopen(file_name, "w+");
+       pidfp = fopen(file_name, "w");
        if(!pidfp) {
                PERROR("fopen (%s)", pidfile);
                WARN("killing child process");