diff options
| -rw-r--r-- | src/rc/broadcast.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/rc/broadcast.c b/src/rc/broadcast.c index d9eb7240..402a9fb9 100644 --- a/src/rc/broadcast.c +++ b/src/rc/broadcast.c @@ -117,6 +117,8 @@ static int file_isatty(const char *fname) /* * broadcast function. + * + * NB: Not multithread safe. */ void broadcast(char *text) { @@ -128,11 +130,15 @@ void broadcast(char *text) char *p; char *line = NULL; struct sigaction sa; - volatile int fd; - FILE *tp; int flags; char *term = NULL; struct utmpx *utmp; + /* + * These are set across the sigsetjmp call, so they can't be stored on + * the stack, otherwise they might be clobbered. + */ + static int fd; + static FILE *tp; getuidtty(&user, &tty); |