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authorMatthias Schiffer <mschiffer@universe-factory.net>2012-06-04 14:54:50 +0200
committerMatthias Schiffer <mschiffer@universe-factory.net>2012-06-04 14:54:50 +0200
commit33a2de703db162af0c3d77593d560f3a8e7f1b95 (patch)
tree27faa858db7496fce73e9b3faf820e3a2ae89c13 /src/fastd.c
parent813535cfe40e103a79b1f24f66ee2b1cac58ae05 (diff)
downloadfastd-33a2de703db162af0c3d77593d560f3a8e7f1b95.tar
fastd-33a2de703db162af0c3d77593d560f3a8e7f1b95.zip
Add pidfile support
Diffstat (limited to 'src/fastd.c')
-rw-r--r--src/fastd.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/src/fastd.c b/src/fastd.c
index 9f92ddb..aa7ed44 100644
--- a/src/fastd.c
+++ b/src/fastd.c
@@ -667,6 +667,23 @@ static void close_fds(fastd_context *ctx) {
}
}
+static void write_pid(fastd_context *ctx, pid_t pid) {
+ if (!ctx->conf->pid_file)
+ return;
+
+ int fd = open(ctx->conf->pid_file, O_WRONLY|O_CREAT, 0666);
+ if (fd < 0) {
+ pr_error_errno(ctx, "can't write PID file: open");
+ return;
+ }
+
+ if (dprintf(fd, "%i", pid) < 0)
+ pr_error_errno(ctx, "can't write PID file: dprintf");
+
+ if (close(fd) < 0)
+ pr_warn_errno(ctx, "close");
+}
+
int main(int argc, char *argv[]) {
fastd_context ctx;
memset(&ctx, 0, sizeof(ctx));
@@ -704,8 +721,20 @@ int main(int argc, char *argv[]) {
init_peers(&ctx);
if (conf.daemon) {
- if (daemon(1, 1) < 0)
- exit_errno(&ctx, "daemon");
+ pid_t pid = fork();
+ if (pid < 0) {
+ exit_errno(&ctx, "fork");
+ }
+ else if (pid > 0) {
+ write_pid(&ctx, pid);
+ exit(0);
+ }
+
+ if (setsid() < 0)
+ pr_error_errno(&ctx, "setsid");
+ }
+ else {
+ write_pid(&ctx, getpid());
}
on_up(&ctx);