diff options
Diffstat (limited to 'dumpcap.c')
| -rw-r--r-- | dumpcap.c | 21 |
1 files changed, 16 insertions, 5 deletions
@@ -115,7 +115,8 @@ print_usage(gboolean print_ver) { fprintf(output, " -y <link type> link layer type (def: first appropriate)\n"); fprintf(output, " -D print list of interfaces and exit\n"); fprintf(output, " -L print list of link-layer types of iface and exit\n"); - fprintf(output, " -M for -D and -L, produce machine-readable output\n"); + fprintf(output, " -S print statistics for each interface once every second\n"); + fprintf(output, " -M for -D, -L, and -S produce machine-readable output\n"); fprintf(output, "\n"); fprintf(output, "Stop conditions:\n"); fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n"); @@ -249,9 +250,10 @@ main(int argc, char *argv[]) gboolean list_interfaces = FALSE; gboolean list_link_layer_types = FALSE; gboolean machine_readable = FALSE; - int status; + gboolean print_statistics = FALSE; + int status, run_once_args = 0; -#define OPTSTRING_INIT "a:b:c:Df:hi:LMps:vw:y:Z" +#define OPTSTRING_INIT "a:b:c:Df:hi:LMpSs:vw:y:Z" #ifdef _WIN32 #define OPTSTRING_WIN32 "B:" @@ -369,9 +371,15 @@ main(int argc, char *argv[]) /*** all non capture option specific ***/ case 'D': /* Print a list of capture devices and exit */ 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++; + break; + case 'S': /* Print interface statistics once a second */ + print_statistics = TRUE; + run_once_args++; break; case 'M': /* For -D and -L, print machine-readable output */ machine_readable = TRUE; @@ -406,8 +414,8 @@ main(int argc, char *argv[]) exit_main(1); } - if (list_interfaces && list_link_layer_types) { - cmdarg_err("Only one of -D or -L may be supplied."); + if (run_once_args > 1) { + cmdarg_err("Only one of -D, -L, or -S may be supplied."); exit_main(1); } else if (list_link_layer_types) { /* We're supposed to list the link-layer types for an interface; @@ -452,6 +460,9 @@ main(int argc, char *argv[]) } else if (list_link_layer_types) { status = capture_opts_list_link_layer_types(capture_opts, machine_readable); exit_main(status); + } else if (print_statistics) { + status = capture_opts_print_statistics(machine_readable); + exit_main(status); } capture_opts_trim_snaplen(capture_opts, MIN_PACKET_SIZE); |