ba589a4e44
cmdarg_err() is for reporting errors for command-line programs and command-line errors in GUI programs; it's not something for any of the Wireshark libraries to use. The various routines for parsing numerical command-line arguments are not for general use, they're just for use when parsing arguments. Change-Id: I100bd4a55ab8ee4497f41d9651b0c5670e6c1e7f Reviewed-on: https://code.wireshark.org/review/31281 Petri-Dish: Guy Harris <guy@alum.mit.edu> Tested-by: Petri Dish Buildbot Reviewed-by: Guy Harris <guy@alum.mit.edu>
685 lines
28 KiB
C
685 lines
28 KiB
C
/* commandline.c
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* Common command line handling between GUIs
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <glib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#ifndef HAVE_GETOPT_LONG
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#include "wsutil/wsgetopt.h"
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#endif
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#include <version_info.h>
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#include <ui/clopts_common.h>
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#include <ui/cmdarg_err.h>
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#include <wsutil/filesystem.h>
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#include <epan/ex-opt.h>
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#include <epan/packet.h>
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#include <epan/proto.h>
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#include <epan/prefs.h>
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#include <epan/prefs-int.h>
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#include <epan/stat_tap_ui.h>
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#include "capture_opts.h"
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#include "persfilepath_opt.h"
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#include "preference_utils.h"
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#include "console.h"
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#include "recent.h"
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#include "decode_as_utils.h"
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#include "../file.h"
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#include "ui/dissect_opts.h"
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#include "ui/commandline.h"
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commandline_param_info_t global_commandline_info;
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capture_options global_capture_opts;
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void
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commandline_print_usage(gboolean for_help_option) {
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FILE *output;
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#ifdef _WIN32
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create_console();
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#endif
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if (for_help_option) {
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show_help_header("Interactively dump and analyze network traffic.");
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output = stdout;
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} else {
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output = stderr;
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}
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fprintf(output, "\n");
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fprintf(output, "Usage: wireshark [options] ... [ <infile> ]\n");
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fprintf(output, "\n");
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#ifdef HAVE_LIBPCAP
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fprintf(output, "Capture interface:\n");
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fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
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fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
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#ifdef HAVE_PCAP_CREATE
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fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
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#else
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fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
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#endif
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fprintf(output, " -p don't capture in promiscuous mode\n");
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fprintf(output, " -k start capturing immediately (def: do nothing)\n");
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fprintf(output, " -S update packet display when new packets are captured\n");
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fprintf(output, " -l turn on automatic scrolling while -S is in use\n");
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#ifdef HAVE_PCAP_CREATE
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fprintf(output, " -I capture in monitor mode, if available\n");
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#endif
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#ifdef CAN_SET_CAPTURE_BUFFER_SIZE
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fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
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#endif
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fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
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fprintf(output, " --time-stamp-type <type> timestamp method for interface\n");
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fprintf(output, " -D print list of interfaces and exit\n");
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fprintf(output, " -L print list of link-layer types of iface and exit\n");
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fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n");
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fprintf(output, "\n");
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fprintf(output, "Capture stop conditions:\n");
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fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
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fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
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fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
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fprintf(output, " files:NUM - stop after NUM files\n");
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/*fprintf(output, "\n");*/
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fprintf(output, "Capture output:\n");
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fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
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fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
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fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
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#endif /* HAVE_LIBPCAP */
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#ifdef HAVE_PCAP_REMOTE
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fprintf(output, "RPCAP options:\n");
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fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
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#endif
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/*fprintf(output, "\n");*/
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fprintf(output, "Input file:\n");
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fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
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fprintf(output, "\n");
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fprintf(output, "Processing:\n");
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fprintf(output, " -R <read filter> packet filter in Wireshark display filter syntax\n");
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fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
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fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtdv\"\n");
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fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
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fprintf(output, " \"Decode As\", see the man page for details\n");
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fprintf(output, " Example: tcp.port==8888,http\n");
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fprintf(output, " --enable-protocol <proto_name>\n");
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fprintf(output, " enable dissection of proto_name\n");
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fprintf(output, " --disable-protocol <proto_name>\n");
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fprintf(output, " disable dissection of proto_name\n");
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fprintf(output, " --enable-heuristic <short_name>\n");
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fprintf(output, " enable dissection of heuristic protocol\n");
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fprintf(output, " --disable-heuristic <short_name>\n");
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fprintf(output, " disable dissection of heuristic protocol\n");
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fprintf(output, "\n");
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fprintf(output, "User interface:\n");
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fprintf(output, " -C <config profile> start with specified configuration profile\n");
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fprintf(output, " -Y <display filter> start with the given display filter\n");
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fprintf(output, " -g <packet number> go to specified packet number after \"-r\"\n");
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fprintf(output, " -J <jump filter> jump to the first packet matching the (display)\n");
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fprintf(output, " filter\n");
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fprintf(output, " -j search backwards for a matching packet after \"-J\"\n");
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fprintf(output, " -m <font> set the font name used for most text\n");
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fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
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fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
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fprintf(output, " -X <key>:<value> eXtension options, see man page for details\n");
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fprintf(output, " -z <statistics> show various statistics, see man page for details\n");
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fprintf(output, "\n");
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fprintf(output, "Output:\n");
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fprintf(output, " -w <outfile|-> set the output filename (or '-' for stdout)\n");
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fprintf(output, "\n");
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fprintf(output, "Miscellaneous:\n");
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fprintf(output, " -h display this help and exit\n");
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fprintf(output, " -v display version info and exit\n");
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fprintf(output, " -P <key>:<path> persconf:path - personal configuration files\n");
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fprintf(output, " persdata:path - personal data files\n");
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fprintf(output, " -o <name>:<value> ... override preference or recent setting\n");
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fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
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#ifndef _WIN32
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fprintf(output, " --display=DISPLAY X display to use\n");
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#endif
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fprintf(output, " --fullscreen start Wireshark in full screen\n");
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#ifdef _WIN32
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destroy_console();
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#endif
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}
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/*
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* For long options with no corresponding short options, we define values
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* outside the range of ASCII graphic characters, make that the last
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* component of the entry for the long option, and have a case for that
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* option in the switch statement.
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*
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* We also pick values >= 65536, so as to leave values from 128 to 65535
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* for capture and dissection options.
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*/
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#define LONGOPT_FULL_SCREEN 65536
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#define OPTSTRING OPTSTRING_CAPTURE_COMMON OPTSTRING_DISSECT_COMMON "C:g:Hh" "jJ:klm:o:P:r:R:Svw:X:Y:z:"
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static const struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"read-file", required_argument, NULL, 'r' },
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{"read-filter", required_argument, NULL, 'R' },
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{"display-filter", required_argument, NULL, 'Y' },
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{"version", no_argument, NULL, 'v'},
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{"fullscreen", no_argument, NULL, LONGOPT_FULL_SCREEN },
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LONGOPT_CAPTURE_COMMON
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LONGOPT_DISSECT_COMMON
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{0, 0, 0, 0 }
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};
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static const char optstring[] = OPTSTRING;
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#ifndef HAVE_LIBPCAP
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static void print_no_capture_support_error(void)
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{
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cmdarg_err("This version of Wireshark was not built with support for capturing packets.");
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}
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#endif
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void commandline_early_options(int argc, char *argv[])
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{
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int opt;
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#ifdef HAVE_LIBPCAP
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int err;
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GList *if_list;
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gchar *err_str;
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#else
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gboolean capture_option_specified;
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#endif
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/*
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* In order to have the -X opts assigned before the wslua machine starts
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* we need to call getopt_long before epan_init() gets called.
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*
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* In addition, we process "console only" parameters (ones where we
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* send output to the console and exit) here, so we don't start GUI
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* if we're only showing command-line help or version information.
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*
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* XXX - this pre-scan is done before we start GUI, so we haven't
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* run "GUI init function" on the arguments. That means that GUI-specific
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* arguments have not been removed from the argument list; those arguments
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* begin with "--", and will be treated as an error by getopt_long().
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*
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* We thus ignore errors - *and* set "opterr" to 0 to suppress the
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* error messages.
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*
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* In order to handle, for example, -o options, we also need to call it
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* *after* epan_init() gets called, so that the dissectors have had a
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* chance to register their preferences, so we have another getopt_long()
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* call later.
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*
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* XXX - can we do this all with one getopt_long() call, saving the
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* arguments we can't handle until after initializing libwireshark,
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* and then process them after initializing libwireshark?
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*
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* Note that we don't want to initialize libwireshark until after the
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* GUI is up, as that can take a while, and we want a window of some
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* sort up to show progress while that's happening.
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*/
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opterr = 0;
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#ifndef HAVE_LIBPCAP
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capture_option_specified = FALSE;
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#endif
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while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
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switch (opt) {
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case 'C': /* Configuration Profile */
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if (profile_exists (optarg, FALSE)) {
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set_profile_name (optarg);
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} else {
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cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
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exit(1);
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}
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break;
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case 'D': /* Print a list of capture devices and exit */
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#ifdef HAVE_LIBPCAP
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if_list = capture_interface_list(&err, &err_str, NULL);
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if (if_list == NULL) {
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if (err == 0)
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cmdarg_err("There are no interfaces on which a capture can be done");
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else {
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cmdarg_err("%s", err_str);
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g_free(err_str);
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}
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exit(2);
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}
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#ifdef _WIN32
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create_console();
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#endif /* _WIN32 */
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capture_opts_print_interfaces(if_list);
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free_interface_list(if_list);
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#ifdef _WIN32
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destroy_console();
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#endif /* _WIN32 */
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exit(0);
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#else /* HAVE_LIBPCAP */
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capture_option_specified = TRUE;
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#endif /* HAVE_LIBPCAP */
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break;
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case 'h': /* Print help and exit */
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commandline_print_usage(TRUE);
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exit(0);
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break;
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#ifdef _WIN32
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case 'i':
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if (strcmp(optarg, "-") == 0)
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set_stdin_capture(TRUE);
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break;
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#endif
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case 'P': /* Personal file directory path settings - change these before the Preferences and alike are processed */
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if (!persfilepath_opt(opt, optarg)) {
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cmdarg_err("-P flag \"%s\" failed (hint: is it quoted and existing?)", optarg);
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exit(2);
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}
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break;
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case 'v': /* Show version and exit */
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#ifdef _WIN32
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create_console();
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#endif
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show_version();
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#ifdef _WIN32
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destroy_console();
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#endif
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exit(0);
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break;
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case 'X':
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/*
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* Extension command line options have to be processed before
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* we call epan_init() as they are supposed to be used by dissectors
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* or taps very early in the registration process.
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*/
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ex_opt_add(optarg);
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break;
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case '?': /* Ignore errors - the "real" scan will catch them. */
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break;
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}
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}
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#ifndef HAVE_LIBPCAP
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if (capture_option_specified) {
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print_no_capture_support_error();
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commandline_print_usage(FALSE);
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exit(1);
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}
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#endif
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}
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void commandline_other_options(int argc, char *argv[], gboolean opt_reset)
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{
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int opt;
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gboolean arg_error = FALSE;
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#ifdef HAVE_LIBPCAP
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const char *list_option_supplied = NULL;
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int status;
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#else
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gboolean capture_option_specified;
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#endif
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/*
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* To reset the options parser, set optreset to 1 on platforms that
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* have optreset (documented in *BSD and macOS, apparently present but
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* not documented in Solaris - the Illumos repository seems to
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* suggest that the first Solaris getopt_long(), at least as of 2004,
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* was based on the NetBSD one, it had optreset) and set optind to 1,
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* and set optind to 0 otherwise (documented as working in the GNU
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* getopt_long(). Setting optind to 0 didn't originally work in the
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* NetBSD one, but that was added later - we don't want to depend on
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* it if we have optreset).
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*
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* Also reset opterr to 1, so that error messages are printed by
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* getopt_long().
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*
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* XXX - if we want to control all the command-line option errors, so
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* that we can display them where we choose (e.g., in a window), we'd
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* want to leave opterr as 0, and produce our own messages using optopt.
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* We'd have to check the value of optopt to see if it's a valid option
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* letter, in which case *presumably* the error is "this option requires
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* an argument but none was specified", or not a valid option letter,
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* in which case *presumably* the error is "this option isn't valid".
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* Some versions of getopt() let you supply a option string beginning
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* with ':', which means that getopt() will return ':' rather than '?'
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* for "this option requires an argument but none was specified", but
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* not all do. But we're now using getopt_long() - what does it do?
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*/
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if (opt_reset) {
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#ifdef HAVE_OPTRESET
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optreset = 1;
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optind = 1;
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#else
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optind = 0;
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#endif
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opterr = 1;
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}
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/* Initialize with default values */
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dissect_opts_init();
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global_commandline_info.jump_backwards = SD_FORWARD;
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global_commandline_info.go_to_packet = 0;
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global_commandline_info.jfilter = NULL;
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global_commandline_info.cf_name = NULL;
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global_commandline_info.rfilter = NULL;
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global_commandline_info.dfilter = NULL;
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#ifdef HAVE_LIBPCAP
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global_commandline_info.start_capture = FALSE;
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global_commandline_info.list_link_layer_types = FALSE;
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global_commandline_info.list_timestamp_types = FALSE;
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global_commandline_info.quit_after_cap = getenv("WIRESHARK_QUIT_AFTER_CAPTURE") ? TRUE : FALSE;
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#endif
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global_commandline_info.full_screen = FALSE;
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while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
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switch (opt) {
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/*** capture option specific ***/
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case 'a': /* autostop criteria */
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case 'b': /* Ringbuffer option */
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case 'c': /* Capture xxx packets */
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case 'f': /* capture filter */
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case 'k': /* Start capture immediately */
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case 'H': /* Hide capture info dialog box */
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case 'p': /* Don't capture in promiscuous mode */
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case 'i': /* Use interface x */
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case LONGOPT_SET_TSTAMP_TYPE: /* Set capture timestamp type */
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#ifdef HAVE_PCAP_CREATE
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case 'I': /* Capture in monitor mode, if available */
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#endif
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#ifdef HAVE_PCAP_REMOTE
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case 'A': /* Authentication */
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#endif
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case 's': /* Set the snapshot (capture) length */
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case 'S': /* "Sync" mode: used for following file ala tail -f */
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case 'w': /* Write to capture file xxx */
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case 'y': /* Set the pcap data link type */
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#ifdef CAN_SET_CAPTURE_BUFFER_SIZE
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case 'B': /* Buffer size */
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#endif
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#ifdef HAVE_LIBPCAP
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status = capture_opts_add_opt(&global_capture_opts, opt, optarg,
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&global_commandline_info.start_capture);
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if(status != 0) {
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exit_application(status);
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}
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#else
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capture_option_specified = TRUE;
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arg_error = TRUE;
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#endif
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break;
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/*** all non capture option specific ***/
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case 'C':
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/* Configuration profile settings were already processed just ignore them this time*/
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break;
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case 'j': /* Search backwards for a matching packet from filter in option J */
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global_commandline_info.jump_backwards = SD_BACKWARD;
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break;
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case 'g': /* Go to packet with the given packet number */
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global_commandline_info.go_to_packet = get_nonzero_guint32(optarg, "go to packet");
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break;
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case 'J': /* Jump to the first packet which matches the filter criteria */
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global_commandline_info.jfilter = optarg;
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break;
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case 'l': /* Automatic scrolling in live capture mode */
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#ifdef HAVE_LIBPCAP
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auto_scroll_live = TRUE;
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#else
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capture_option_specified = TRUE;
|
|
arg_error = TRUE;
|
|
#endif
|
|
break;
|
|
case 'L': /* Print list of link-layer types and exit */
|
|
#ifdef HAVE_LIBPCAP
|
|
global_commandline_info.list_link_layer_types = TRUE;
|
|
list_option_supplied = "-L";
|
|
#else
|
|
capture_option_specified = TRUE;
|
|
arg_error = TRUE;
|
|
#endif
|
|
break;
|
|
case LONGOPT_LIST_TSTAMP_TYPES:
|
|
#ifdef HAVE_LIBPCAP
|
|
global_commandline_info.list_timestamp_types = TRUE;
|
|
list_option_supplied = "--list-time-stamp-types";
|
|
#else
|
|
capture_option_specified = TRUE;
|
|
arg_error = TRUE;
|
|
#endif
|
|
break;
|
|
case 'o': /* Override preference from command line */
|
|
{
|
|
char *errmsg = NULL;
|
|
|
|
switch (prefs_set_pref(optarg, &errmsg)) {
|
|
case PREFS_SET_OK:
|
|
break;
|
|
case PREFS_SET_SYNTAX_ERR:
|
|
cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
|
|
errmsg ? ": " : "", errmsg ? errmsg : "");
|
|
g_free(errmsg);
|
|
exit_application(1);
|
|
break;
|
|
case PREFS_SET_NO_SUCH_PREF:
|
|
/* not a preference, might be a recent setting */
|
|
switch (recent_set_arg(optarg)) {
|
|
case PREFS_SET_OK:
|
|
break;
|
|
case PREFS_SET_SYNTAX_ERR:
|
|
/* shouldn't happen, checked already above */
|
|
cmdarg_err("Invalid -o flag \"%s\"", optarg);
|
|
exit_application(1);
|
|
break;
|
|
case PREFS_SET_NO_SUCH_PREF:
|
|
case PREFS_SET_OBSOLETE:
|
|
cmdarg_err("-o flag \"%s\" specifies unknown preference/recent value",
|
|
optarg);
|
|
exit_application(1);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
break;
|
|
case PREFS_SET_OBSOLETE:
|
|
cmdarg_err("-o flag \"%s\" specifies obsolete preference",
|
|
optarg);
|
|
exit_application(1);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
break;
|
|
}
|
|
case 'P':
|
|
/* Path settings were already processed just ignore them this time*/
|
|
break;
|
|
case 'r': /* Read capture file xxx */
|
|
/* We may set "last_open_dir" to "cf_name", and if we change
|
|
"last_open_dir" later, we free the old value, so we have to
|
|
set "cf_name" to something that's been allocated. */
|
|
global_commandline_info.cf_name = g_strdup(optarg);
|
|
break;
|
|
case 'R': /* Read file filter */
|
|
global_commandline_info.rfilter = optarg;
|
|
break;
|
|
case 'X':
|
|
/* ext ops were already processed just ignore them this time*/
|
|
break;
|
|
case 'Y':
|
|
global_commandline_info.dfilter = optarg;
|
|
break;
|
|
case 'z':
|
|
/* We won't call the init function for the stat this soon
|
|
as it would disallow MATE's fields (which are registered
|
|
by the preferences set callback) from being used as
|
|
part of a tap filter. Instead, we just add the argument
|
|
to a list of stat arguments. */
|
|
if (strcmp("help", optarg) == 0) {
|
|
fprintf(stderr, "wireshark: The available statistics for the \"-z\" option are:\n");
|
|
list_stat_cmd_args();
|
|
exit_application(0);
|
|
}
|
|
if (!process_stat_cmd_arg(optarg)) {
|
|
cmdarg_err("Invalid -z argument.");
|
|
cmdarg_err_cont(" -z argument must be one of :");
|
|
list_stat_cmd_args();
|
|
exit_application(1);
|
|
}
|
|
break;
|
|
case 'd': /* Decode as rule */
|
|
case 'K': /* Kerberos keytab file */
|
|
case 'n': /* No name resolution */
|
|
case 'N': /* Select what types of addresses/port #s to resolve */
|
|
case 't': /* time stamp type */
|
|
case 'u': /* Seconds type */
|
|
case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
|
|
case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
|
|
case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
|
|
case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
|
|
if (!dissect_opts_handle_opt(opt, optarg))
|
|
exit_application(1);
|
|
break;
|
|
case LONGOPT_FULL_SCREEN:
|
|
global_commandline_info.full_screen = TRUE;
|
|
break;
|
|
default:
|
|
case '?': /* Bad flag - print usage message */
|
|
arg_error = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!arg_error) {
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (argc >= 1) {
|
|
if (global_commandline_info.cf_name != NULL) {
|
|
/*
|
|
* Input file name specified with "-r" *and* specified as a regular
|
|
* command-line argument.
|
|
*/
|
|
cmdarg_err("File name specified both with -r and regular argument");
|
|
arg_error = TRUE;
|
|
} else {
|
|
/*
|
|
* Input file name not specified with "-r", and a command-line argument
|
|
* was specified; treat it as the input file name.
|
|
*
|
|
* Yes, this is different from tshark, where non-flag command-line
|
|
* arguments are a filter, but this works better on GUI desktops
|
|
* where a command can be specified to be run to open a particular
|
|
* file - yes, you could have "-r" as the last part of the command,
|
|
* but that's a bit ugly.
|
|
*/
|
|
global_commandline_info.cf_name = g_strdup(argv[0]);
|
|
}
|
|
argc--;
|
|
argv++;
|
|
}
|
|
|
|
if (argc != 0) {
|
|
/*
|
|
* Extra command line arguments were specified; complain.
|
|
*/
|
|
cmdarg_err("Invalid argument: %s", argv[0]);
|
|
arg_error = TRUE;
|
|
}
|
|
}
|
|
|
|
if (arg_error) {
|
|
#ifndef HAVE_LIBPCAP
|
|
if (capture_option_specified) {
|
|
print_no_capture_support_error();
|
|
}
|
|
#endif
|
|
commandline_print_usage(FALSE);
|
|
exit_application(1);
|
|
}
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
if (global_commandline_info.start_capture && list_option_supplied) {
|
|
/* Specifying *both* is bogus. */
|
|
cmdarg_err("You can't specify both %s and a live capture.", list_option_supplied);
|
|
exit_application(1);
|
|
}
|
|
|
|
if (list_option_supplied) {
|
|
/* We're supposed to list the link-layer types for an interface;
|
|
did the user also specify a capture file to be read? */
|
|
if (global_commandline_info.cf_name) {
|
|
/* Yes - that's bogus. */
|
|
cmdarg_err("You can't specify %s and a capture file to be read.", list_option_supplied);
|
|
exit_application(1);
|
|
}
|
|
/* No - did they specify a ring buffer option? */
|
|
if (global_capture_opts.multi_files_on) {
|
|
cmdarg_err("Ring buffer requested, but a capture isn't being done.");
|
|
exit_application(1);
|
|
}
|
|
} else {
|
|
/* We're supposed to do a live capture; did the user also specify
|
|
a capture file to be read? */
|
|
if (global_commandline_info.start_capture && global_commandline_info.cf_name) {
|
|
/* Yes - that's bogus. */
|
|
cmdarg_err("You can't specify both a live capture and a capture file to be read.");
|
|
exit_application(1);
|
|
}
|
|
|
|
/* No - was the ring buffer option specified and, if so, does it make
|
|
sense? */
|
|
if (global_capture_opts.multi_files_on) {
|
|
/* Ring buffer works only under certain conditions:
|
|
a) ring buffer does not work with temporary files;
|
|
b) real_time_mode and multi_files_on are mutually exclusive -
|
|
real_time_mode takes precedence;
|
|
c) it makes no sense to enable the ring buffer if the maximum
|
|
file size is set to "infinite". */
|
|
if (global_capture_opts.save_file == NULL) {
|
|
cmdarg_err("Ring buffer requested, but capture isn't being saved to a permanent file.");
|
|
global_capture_opts.multi_files_on = FALSE;
|
|
}
|
|
if (!global_capture_opts.has_autostop_filesize &&
|
|
!global_capture_opts.has_file_duration &&
|
|
!global_capture_opts.has_file_interval) {
|
|
cmdarg_err("Ring buffer requested, but no maximum capture file size, duration or interval were specified.");
|
|
/* XXX - this must be redesigned as the conditions changed */
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|