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-rw-r--r--tools/hv/hv_fcopy_daemon.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index 8f96b3ee0724..f437d739f37d 100644
--- a/tools/hv/hv_fcopy_daemon.c
+++ b/tools/hv/hv_fcopy_daemon.c
@@ -33,6 +33,7 @@
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
+#include <getopt.h>
static int target_fd;
static char target_fname[W_MAX_PATH];
@@ -126,15 +127,43 @@ static int hv_copy_cancel(void)
}
-int main(void)
+void print_usage(char *argv[])
+{
+ fprintf(stderr, "Usage: %s [options]\n"
+ "Options are:\n"
+ " -n, --no-daemon stay in foreground, don't daemonize\n"
+ " -h, --help print this help\n", argv[0]);
+}
+
+int main(int argc, char *argv[])
{
int fd, fcopy_fd, len;
int error;
+ int daemonize = 1, long_index = 0, opt;
int version = FCOPY_CURRENT_VERSION;
char *buffer[4096 * 2];
struct hv_fcopy_hdr *in_msg;
- if (daemon(1, 0)) {
+ static struct option long_options[] = {
+ {"help", no_argument, 0, 'h' },
+ {"no-daemon", no_argument, 0, 'n' },
+ {0, 0, 0, 0 }
+ };
+
+ while ((opt = getopt_long(argc, argv, "hn", long_options,
+ &long_index)) != -1) {
+ switch (opt) {
+ case 'n':
+ daemonize = 0;
+ break;
+ case 'h':
+ default:
+ print_usage(argv);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ if (daemonize && daemon(1, 0)) {
syslog(LOG_ERR, "daemon() failed; error: %s", strerror(errno));
exit(EXIT_FAILURE);
}