From 3ec02c097536cfc5422f4580734fde26eef14841 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Fri, 22 Jul 2022 19:30:10 +0200 Subject: [PATCH] passt: Truncate PID file on open() Otherwise, if the current PID has fewer digits than a previously written one, the content will be wrong. Signed-off-by: Stefano Brivio --- passt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/passt.c b/passt.c index a8d94b4..01eed1b 100644 --- a/passt.c +++ b/passt.c @@ -390,7 +390,7 @@ int main(int argc, char **argv) if (*c.pid_file) { if ((pidfile_fd = open(c.pid_file, - O_CREAT | O_WRONLY | O_CLOEXEC, + O_CREAT | O_TRUNC | O_WRONLY | O_CLOEXEC, S_IRUSR | S_IWUSR)) < 0) { perror("PID file open"); exit(EXIT_FAILURE);