diff options
Diffstat (limited to 'dumpcap.c')
| -rw-r--r-- | dumpcap.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -420,6 +420,8 @@ print_usage(FILE *output) fprintf(output, " packets:NUM - ringbuffer: replace after NUM packets\n"); fprintf(output, " interval:NUM - switch to next file when the time is\n"); fprintf(output, " an exact multiple of NUM secs\n"); + fprintf(output, " printname:FILE - print filename to FILE when written\n"); + fprintf(output, " (can use 'stdout' or 'stderr')\n"); fprintf(output, " -n use pcapng format instead of pcap (default)\n"); fprintf(output, " -P use libpcap format instead of pcapng\n"); fprintf(output, " --capture-comment <comment>\n"); @@ -3400,6 +3402,16 @@ capture_loop_open_output(capture_options *capture_opts, int *save_file_fd, g_free(capfile_name); capfile_name = NULL; } + if (capture_opts->print_file_names) { + if (!ringbuf_set_print_name(capture_opts->print_name_to, NULL)) { + g_snprintf(errmsg, errmsg_len, "Could not write filenames to %s: %s.\n", + capture_opts->print_name_to, + g_strerror(errno)); + g_free(capfile_name); + ringbuf_error_cleanup(); + return FALSE; + } + } } else { /* Try to open/create the specified file for use as a capture buffer. */ *save_file_fd = ws_open(capfile_name, O_WRONLY|O_BINARY|O_TRUNC|O_CREAT, |