diff options
Diffstat (limited to 'tools/hv/hv_fcopy_daemon.c')
| -rw-r--r-- | tools/hv/hv_fcopy_daemon.c | 33 |
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); } |