diff options
| -rw-r--r-- | dumpcap.c | 37 |
1 files changed, 25 insertions, 12 deletions
@@ -4646,28 +4646,41 @@ DIAG_ON(cast-qual) break; /*** all non capture option specific ***/ case 'D': /* Print a list of capture devices and exit */ - list_interfaces = TRUE; - run_once_args++; + if (!list_interfaces) { + list_interfaces = TRUE; + run_once_args++; + } break; case 'L': /* Print list of link-layer types and exit */ - list_link_layer_types = TRUE; - run_once_args++; + if (!list_link_layer_types) { + list_link_layer_types = TRUE; + run_once_args++; + } break; #ifdef HAVE_BPF_IMAGE case 'd': /* Print BPF code for capture filter and exit */ - print_bpf_code = TRUE; - run_once_args++; + if (!print_bpf_code) { + print_bpf_code = TRUE; + run_once_args++; + } break; #endif case 'S': /* Print interface statistics once a second */ - print_statistics = TRUE; - run_once_args++; + if (!print_statistics) { + print_statistics = TRUE; + run_once_args++; + } break; case 'k': /* Set wireless channel */ - set_chan = TRUE; - set_chan_arg = optarg; - run_once_args++; - break; + if (!set_chan) { + set_chan = TRUE; + set_chan_arg = optarg; + run_once_args++; + } else { + cmdarg_err("Only one -k flag may be specified"); + arg_error = TRUE; + } + break; case 'M': /* For -D, -L, and -S, print machine-readable output */ machine_readable = TRUE; break; |