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wireshark/extcap.c

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/* extcap.h
*
* Routines for extcap external capture
* Copyright 2013, Mike Ryan <mikeryan@lacklustre.net>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <windows.h>
#include <process.h>
#include <time.h>
#else
/* Include for unlink */
#include <unistd.h>
#endif
#include <glib.h>
#include <log.h>
#include <wsutil/file_util.h>
#include <wsutil/filesystem.h>
#include <wsutil/tempfile.h>
#include "capture_opts.h"
#ifdef HAVE_EXTCAP
#include "extcap.h"
#include "extcap_parser.h"
#ifdef _WIN32
static HANDLE pipe_h = NULL;
#endif
/* internal container, for all the extcap interfaces that have been found.
* will be resetted by every call to extcap_interface_list() and is being
* used in extcap_get_if_* as well as extcaps_init_initerfaces to ensure,
* that only extcap interfaces are being given to underlying extcap programs
*/
static GHashTable *ifaces = NULL;
/* Callback definition for extcap_foreach */
typedef gboolean (*extcap_cb_t)(const gchar *extcap, gchar *output, void *data,
gchar **err_str);
/* #define ARG_DEBUG */
#if ARG_DEBUG
static void extcap_debug_arguments ( extcap_arg *arg_iter );
#endif
static gboolean
extcap_if_exists(const char *ifname)
{
if ( ifname != NULL )
{
if ( ifaces != NULL )
{
if ( g_hash_table_size(ifaces) > 0 )
{
if ( g_hash_table_lookup(ifaces, (const gchar *)ifname) != NULL )
{
return TRUE;
}
}
}
}
return FALSE;
}
static gboolean
extcap_if_exists_for_extcap(const char *ifname, const char *extcap)
{
gchar * entry = NULL;
if ( extcap_if_exists(ifname) )
{
if ( ( entry = (gchar *)g_hash_table_lookup(ifaces, (const gchar *)ifname) ) != NULL )
{
if ( strcmp(entry, extcap) == 0 )
return TRUE;
}
}
return FALSE;
}
static gchar *
extcap_if_executable(const char *ifname)
{
if ( extcap_if_exists(ifname) )
return (gchar *)g_hash_table_lookup(ifaces, (const gchar *)ifname);
return (gchar *)NULL;
}
static void
extcap_if_reset(void)
{
if (ifaces == NULL)
ifaces = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
g_hash_table_remove_all(ifaces);
}
static void
extcap_if_add(gchar *ifname, gchar *extcap)
{
if ( g_hash_table_lookup(ifaces, ifname) == NULL )
g_hash_table_insert(ifaces, ifname, extcap);
else {
g_free(ifname);
g_free(extcap);
}
}
/* Note: args does not need to be NULL-terminated. */
static void extcap_foreach(gint argc, gchar **args, extcap_cb_t cb,
void *cb_data, char **err_str, const char * ifname _U_) {
const char *dirname = get_extcap_dir();
GDir *dir;
const gchar *file;
gboolean keep_going;
gint i;
gchar **argv;
#ifdef _WIN32
gchar **dll_search_envp;
gchar *progfile_dir;
#endif
keep_going = TRUE;
argv = (gchar **) g_malloc0(sizeof(gchar *) * (argc + 2));
#ifdef _WIN32
/*
* Make sure executables can find dependent DLLs and that they're *our*
* DLLs: https://msdn.microsoft.com/en-us/library/windows/desktop/ms682586.aspx
* Alternatively we could create a simple wrapper exe similar to Create
* Hidden Process (http://www.commandline.co.uk/chp/).
*/
dll_search_envp = g_get_environ();
progfile_dir = g_strdup_printf("%s;%s", get_progfile_dir(), g_environ_getenv(dll_search_envp, "Path"));
dll_search_envp = g_environ_setenv(dll_search_envp, "Path", progfile_dir, TRUE);
g_free(progfile_dir);
#endif
if ((dir = g_dir_open(dirname, 0, NULL)) != NULL) {
GString *extcap_path = NULL;
extcap_path = g_string_new("");
while (keep_going && (file = g_dir_read_name(dir)) != NULL ) {
gchar *command_output = NULL;
gboolean status = FALSE;
gint exit_status = 0;
GError *error = NULL;
gchar **envp = NULL;
/* full path to extcap binary */
#ifdef _WIN32
g_string_printf(extcap_path, "%s\\%s", dirname, file);
envp = dll_search_envp;
#else
g_string_printf(extcap_path, "%s/%s", dirname, file);
#endif
if ( extcap_if_exists(ifname) && !extcap_if_exists_for_extcap(ifname, extcap_path->str ) )
continue;
#ifdef _WIN32
argv[0] = g_strescape(extcap_path->str, NULL);
#else
argv[0] = g_strdup(extcap_path->str);
#endif
for (i = 0; i < argc; ++i)
argv[i+1] = args[i];
argv[argc+1] = NULL;
status = g_spawn_sync(dirname, argv, envp,
(GSpawnFlags) 0, NULL, NULL,
&command_output, NULL, &exit_status, &error);
if (status && exit_status == 0)
keep_going = cb(extcap_path->str, command_output, cb_data, err_str);
g_free(argv[0]);
g_free(command_output);
}
g_dir_close(dir);
g_string_free(extcap_path, TRUE);
}
#ifdef _WIN32
g_strfreev(dll_search_envp);
#endif
g_free(argv);
}
static gboolean dlt_cb(const gchar *extcap _U_, gchar *output, void *data,
char **err_str) {
extcap_token_sentence *tokens;
extcap_dlt *dlts, *dlt_iter, *next;
if_capabilities_t *caps;
GList *linktype_list = NULL;
data_link_info_t *data_link_info;
tokens = extcap_tokenize_sentences(output);
extcap_parse_dlts(tokens, &dlts);
extcap_free_tokenized_sentence_list(tokens);
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "Extcap pipe %s ", extcap);
/*
* Allocate the interface capabilities structure.
*/
caps = (if_capabilities_t *) g_malloc(sizeof *caps);
caps->can_set_rfmon = FALSE;
dlt_iter = dlts;
while (dlt_iter != NULL ) {
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
" DLT %d name=\"%s\" display=\"%s\" ", dlt_iter->number,
dlt_iter->name, dlt_iter->display);
data_link_info = g_new(data_link_info_t, 1);
data_link_info->dlt = dlt_iter->number;
data_link_info->name = g_strdup(dlt_iter->name);
data_link_info->description = g_strdup(dlt_iter->display);
linktype_list = g_list_append(linktype_list, data_link_info);
dlt_iter = dlt_iter->next_dlt;
}
/* Check to see if we built a list */
if (linktype_list != NULL && data != NULL) {
caps->data_link_types = linktype_list;
*(if_capabilities_t **) data = caps;
} else {
if (err_str) {
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, " returned no DLTs");
*err_str = g_strdup("Extcap returned no DLTs");
}
g_free(caps);
}
dlt_iter = dlts;
while (dlt_iter != NULL ) {
next = dlt_iter->next_dlt;
extcap_free_dlt(dlt_iter);
dlt_iter = next;
}
return FALSE;
}
if_capabilities_t *
extcap_get_if_dlts(const gchar *ifname, char **err_str) {
gchar *argv[3];
gint i;
if_capabilities_t *caps = NULL;
if (ifname != NULL && err_str != NULL)
*err_str = NULL;
if ( extcap_if_exists(ifname) )
{
argv[0] = g_strdup(EXTCAP_ARGUMENT_LIST_DLTS);
argv[1] = g_strdup(EXTCAP_ARGUMENT_INTERFACE);
argv[2] = g_strdup(ifname);
if (err_str)
*err_str = NULL;
extcap_foreach(3, argv, dlt_cb, &caps, err_str, ifname);
for (i = 0; i < 3; ++i)
g_free(argv[i]);
}
return caps;
}
static gboolean interfaces_cb(const gchar *extcap, gchar *output, void *data,
char **err_str _U_) {
GList **il = (GList **) data;
extcap_token_sentence *tokens;
extcap_interface *interfaces, *int_iter; /*, *next; */
if_info_t *if_info;
tokens = extcap_tokenize_sentences(output);
extcap_parse_interfaces(tokens, &interfaces);
extcap_free_tokenized_sentence_list(tokens);
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "Extcap pipe %s ", extcap);
int_iter = interfaces;
while (int_iter != NULL ) {
if ( extcap_if_exists(int_iter->call) )
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_WARNING, "Extcap interface \"%s\" is already provided by \"%s\" ",
int_iter->call, (gchar *)extcap_if_executable(int_iter->call) );
int_iter = int_iter->next_interface;
continue;
}
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, " Interface [%s] \"%s\" ",
int_iter->call, int_iter->display);
if_info = g_new0(if_info_t, 1);
if_info->name = g_strdup(int_iter->call);
if_info->friendly_name = g_strdup(int_iter->display);
if_info->type = IF_EXTCAP;
if_info->extcap = g_strdup(extcap);
*il = g_list_append(*il, if_info);
extcap_if_add(g_strdup(int_iter->call), g_strdup(extcap) );
int_iter = int_iter->next_interface;
}
extcap_free_interface(interfaces);
return TRUE;
}
GList *
extcap_interface_list(char **err_str) {
gchar *argv;
/* gint i; */
GList *ret = NULL;
if (err_str != NULL)
*err_str = NULL;
/* ifaces is used as cache, do not destroy its contents when
* returning or no extcap interfaces can be queried for options */
extcap_if_reset();
argv = g_strdup(EXTCAP_ARGUMENT_LIST_INTERFACES);
if (err_str)
*err_str = NULL;
extcap_foreach(1, &argv, interfaces_cb, &ret, err_str, NULL);
g_free(argv);
return ret;
}
static void g_free_1(gpointer data, gpointer user_data _U_)
{
g_free(data);
}
static void extcap_free_if_configuration(GList *list)
{
GList *elem;
for (elem = g_list_first(list); elem; elem = elem->next)
{
GList *arg_list;
if (elem->data == NULL)
{
continue;
}
arg_list = g_list_first((GList *)elem->data);
g_list_foreach(arg_list, g_free_1, NULL);
g_list_free(arg_list);
}
g_list_free(list);
}
static gboolean search_cb(const gchar *extcap _U_, gchar *output, void *data,
char **err_str _U_) {
extcap_token_sentence *tokens = NULL;
GList *arguments = NULL;
GList **il = (GList **) data;
tokens = extcap_tokenize_sentences(output);
arguments = extcap_parse_args(tokens);
extcap_free_tokenized_sentence_list(tokens);
#if ARG_DEBUG
extcap_debug_arguments ( arguments );
#endif
*il = g_list_append(*il, arguments);
/* By returning false, extcap_foreach will break on first found */
return TRUE;
}
GList *
extcap_get_if_configuration(const char * ifname) {
gchar *argv[3];
GList *ret = NULL;
gchar **err_str = NULL;
int i;
if ( extcap_if_exists(ifname) )
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "Extcap path %s",
get_extcap_dir());
argv[0] = g_strdup(EXTCAP_ARGUMENT_CONFIG);
argv[1] = g_strdup(EXTCAP_ARGUMENT_INTERFACE);
argv[2] = g_strdup(ifname);
extcap_foreach(3, argv, search_cb, &ret, err_str, ifname);
for (i = 0; i < 3; i++)
g_free(argv[i]);
}
return ret;
}
gboolean
extcap_has_configuration(const char * ifname, gboolean is_required) {
GList * arguments = 0;
GList * walker = 0, * item = 0;
gboolean found = FALSE;
arguments = extcap_get_if_configuration((const char *)( ifname ) );
walker = g_list_first(arguments);
while ( walker != NULL && ! found )
{
item = g_list_first((GList *)(walker->data));
while ( item != NULL && ! found )
{
if ( (extcap_arg *)(item->data) != NULL )
{
/* Should required options be present, or any kind of options */
if ( ! is_required || ((extcap_arg *)(item->data))->is_required )
found = TRUE;
}
item = item->next;
}
walker = walker->next;
}
return found;
}
void extcap_cleanup(capture_options * capture_opts) {
interface_options interface_opts;
guint icnt = 0;
for (icnt = 0; icnt < capture_opts->ifaces->len; icnt++) {
interface_opts = g_array_index(capture_opts->ifaces, interface_options,
icnt);
/* skip native interfaces */
if (interface_opts.if_type != IF_EXTCAP)
continue;
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
"Extcap [%s] - Cleaning up fifo: %s; PID: %d", interface_opts.name,
interface_opts.extcap_fifo, interface_opts.extcap_pid);
#ifdef _WIN32
if (pipe_h)
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
"Extcap [%s] - Closing pipe", interface_opts.name);
FlushFileBuffers(pipe_h);
DisconnectNamedPipe(pipe_h);
CloseHandle(pipe_h);
}
#else
if (interface_opts.extcap_fifo != NULL && file_exists(interface_opts.extcap_fifo))
{
/* the fifo will not be freed here, but with the other capture_opts in capture_sync */
ws_unlink(interface_opts.extcap_fifo);
interface_opts.extcap_fifo = NULL;
}
#endif
/* Maybe the client closed and removed fifo, but ws should check if
* pid should be closed */
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
"Extcap [%s] - Closing spawned PID: %d", interface_opts.name,
interface_opts.extcap_pid);
if (interface_opts.extcap_child_watch > 0)
{
g_source_remove(interface_opts.extcap_child_watch);
interface_opts.extcap_child_watch = 0;
}
if (interface_opts.extcap_pid != INVALID_EXTCAP_PID)
{
#ifdef _WIN32
TerminateProcess(interface_opts.extcap_pid, 0);
#endif
g_spawn_close_pid(interface_opts.extcap_pid);
interface_opts.extcap_pid = INVALID_EXTCAP_PID;
}
/* Make sure modified interface_opts is saved in capture_opts. */
capture_opts->ifaces = g_array_remove_index(capture_opts->ifaces, icnt);
g_array_insert_val(capture_opts->ifaces, icnt, interface_opts);
}
}
static void
extcap_arg_cb(gpointer key, gpointer value, gpointer data) {
GPtrArray *args = (GPtrArray *)data;
if ( key != NULL )
{
g_ptr_array_add(args, g_strdup((const gchar*)key));
if ( value != NULL )
g_ptr_array_add(args, g_strdup((const gchar*)value));
}
}
static void extcap_child_watch_cb(GPid pid, gint status _U_, gpointer user_data)
{
guint i;
interface_options interface_opts;
capture_options *capture_opts = (capture_options *)user_data;
/* Close handle to child process. */
g_spawn_close_pid(pid);
/* Update extcap_pid in interface options structure. */
for (i = 0; i < capture_opts->ifaces->len; i++)
{
interface_opts = g_array_index(capture_opts->ifaces, interface_options, i);
if (interface_opts.extcap_pid == pid)
{
interface_opts.extcap_pid = INVALID_EXTCAP_PID;
interface_opts.extcap_child_watch = 0;
capture_opts->ifaces = g_array_remove_index(capture_opts->ifaces, i);
g_array_insert_val(capture_opts->ifaces, i, interface_opts);
break;
}
}
}
/* call mkfifo for each extcap,
* returns FALSE if there's an error creating a FIFO */
gboolean
extcaps_init_initerfaces(capture_options *capture_opts)
{
guint i;
interface_options interface_opts;
for (i = 0; i < capture_opts->ifaces->len; i++)
{
GPtrArray *args = NULL;
GPid pid = INVALID_EXTCAP_PID;
gchar **tmp;
int tmp_i;
interface_opts = g_array_index(capture_opts->ifaces, interface_options, i);
/* skip native interfaces */
if (interface_opts.if_type != IF_EXTCAP )
continue;
/* create pipe for fifo */
if ( ! extcap_create_pipe ( &interface_opts.extcap_fifo ) )
return FALSE;
/* Create extcap call */
args = g_ptr_array_new();
#define add_arg(X) g_ptr_array_add(args, g_strdup(X))
add_arg(interface_opts.extcap);
add_arg(EXTCAP_ARGUMENT_RUN_CAPTURE);
add_arg(EXTCAP_ARGUMENT_INTERFACE);
add_arg(interface_opts.name);
if (interface_opts.cfilter && strlen(interface_opts.cfilter) > 0) {
add_arg(EXTCAP_ARGUMENT_CAPTURE_FILTER);
add_arg(interface_opts.cfilter);
}
add_arg(EXTCAP_ARGUMENT_RUN_PIPE);
add_arg(interface_opts.extcap_fifo);
if (interface_opts.extcap_args == NULL)
{
/* User did not perform interface configuration.
*
* Check if there are any boolean flags that are set by default
* and hence their argument should be added.
*/
GList *arglist;
GList *elem;
arglist = extcap_get_if_configuration(interface_opts.name);
for (elem = g_list_first(arglist); elem; elem = elem->next)
{
GList * arg_list;
extcap_arg *arg_iter;
if (elem->data == NULL)
{
continue;
}
arg_list = g_list_first((GList *)elem->data);
while (arg_list != NULL)
{
/* In case of boolflags only first element in arg_list is relevant. */
arg_iter = (extcap_arg*) (arg_list->data);
if (arg_iter->arg_type == EXTCAP_ARG_BOOLFLAG)
{
if (arg_iter->default_complex != NULL
&& extcap_complex_get_bool(arg_iter->default_complex))
{
add_arg(arg_iter->call);
}
}
arg_list = arg_list->next;
}
}
extcap_free_if_configuration(arglist);
}
else
{
g_hash_table_foreach(interface_opts.extcap_args, extcap_arg_cb, args);
}
add_arg(NULL);
#undef add_arg
/* Dump commandline parameters sent to extcap. */
for (tmp = (gchar **)args->pdata, tmp_i = 0; *tmp && **tmp; ++tmp_i, ++tmp)
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "argv[%d]: %s", tmp_i, *tmp);
}
/* Wireshark for windows crashes here sometimes *
* Access violation reading location 0x... */
g_spawn_async(NULL, (gchar **)args->pdata, NULL,
(GSpawnFlags) G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL,
&pid,NULL);
g_ptr_array_foreach(args, (GFunc)g_free, NULL);
g_ptr_array_free(args, TRUE);
interface_opts.extcap_pid = pid;
interface_opts.extcap_child_watch =
g_child_watch_add(pid, extcap_child_watch_cb, (gpointer)capture_opts);
capture_opts->ifaces = g_array_remove_index(capture_opts->ifaces, i);
g_array_insert_val(capture_opts->ifaces, i, interface_opts);
#ifdef _WIN32
/* On Windows, wait for extcap to connect to named pipe.
* Some extcaps will present UAC screen to user.
* 30 second timeout should be reasonable timeout for extcap to
* connect to named pipe (including user interaction).
* Wait on multiple object in case of extcap termination
* without opening pipe.
*
* Minimum supported version of Windows: XP / Server 2003.
*/
if (pid != INVALID_EXTCAP_PID)
{
DWORD dw;
HANDLE handles[2];
OVERLAPPED ov;
ov.Pointer = 0;
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
ConnectNamedPipe(pipe_h, &ov);
handles[0] = ov.hEvent;
handles[1] = pid;
if (GetLastError() == ERROR_PIPE_CONNECTED)
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "extcap connected to pipe");
}
else
{
dw = WaitForMultipleObjects(2, handles, FALSE, 30000);
if (dw == WAIT_OBJECT_0)
{
/* ConnectNamedPipe finished. */
DWORD code;
code = GetLastError();
if (code == ERROR_IO_PENDING)
{
DWORD dummy;
if (!GetOverlappedResult(ov.hEvent, &ov, &dummy, TRUE))
{
code = GetLastError();
}
else
{
code = ERROR_SUCCESS;
}
}
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "ConnectNamedPipe code: %d", code);
}
else if (dw == (WAIT_OBJECT_0 + 1))
{
/* extcap process terminated. */
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "extcap terminated without connecting to pipe!");
}
else if (dw == WAIT_TIMEOUT)
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "extcap didn't connect to pipe within 30 seconds!");
}
else
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG, "WaitForMultipleObjects returned 0x%08X. Error %d", dw, GetLastError());
}
}
CloseHandle(ov.hEvent);
}
#endif
}
return TRUE;
}
#ifdef _WIN32
/* called by capture_sync to get the CreatNamedPipe handle*/
HANDLE
extcap_get_win32_handle()
{
return pipe_h;
}
#endif
gboolean extcap_create_pipe(char ** fifo)
{
#ifdef _WIN32
gchar timestr[ 14+1 ];
time_t current_time;
gchar *pipename = NULL;
SECURITY_ATTRIBUTES security;
/* create pipename */
current_time = time(NULL);
strftime(timestr, sizeof(timestr), "%Y%m%d%H%M%S", localtime(&current_time));
pipename = g_strconcat ( "\\\\.\\pipe\\", EXTCAP_PIPE_PREFIX, "_", timestr, NULL );
/* Security struct to enable Inheritable HANDLE */
memset(&security, 0, sizeof(SECURITY_ATTRIBUTES));
security.nLength = sizeof(SECURITY_ATTRIBUTES);
security.bInheritHandle = TRUE;
security.lpSecurityDescriptor = NULL;
/* create a namedPipe*/
pipe_h = CreateNamedPipe(
utf_8to16(pipename),
PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_MESSAGE| PIPE_READMODE_MESSAGE | PIPE_WAIT,
5, 65536, 65536,
300,
&security);
if (pipe_h == INVALID_HANDLE_VALUE)
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,"\nError creating pipe => (%d)", GetLastError());
return FALSE;
}
else
{
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,"\nWireshark Created pipe =>(%s)",pipename);
*fifo = g_strdup(pipename);
}
#else
gchar *temp_name = NULL;
int fd = 0;
if ((fd = create_tempfile(&temp_name, EXTCAP_PIPE_PREFIX)) < 0 )
return FALSE;
ws_close(fd);
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
"Extcap - Creating fifo: %s", temp_name);
if ( file_exists(temp_name) )
ws_unlink(temp_name);
if (mkfifo(temp_name, 0600) == 0)
*fifo = g_strdup(temp_name);
#endif
return TRUE;
}
#if ARG_DEBUG
void extcap_debug_arguments ( extcap_arg *arg_iter )
{
extcap_value *v = NULL;
GList *walker = NULL;
printf("debug - parser dump\n");
while (arg_iter != NULL) {
printf("ARG %d call=%s display=\"%s\" type=", arg_iter->arg_num, arg_iter->call, arg_iter->display);
switch (arg_iter->arg_type) {
case EXTCAP_ARG_INTEGER:
printf("int\n");
break;
case EXTCAP_ARG_UNSIGNED:
printf("unsigned\n");
break;
case EXTCAP_ARG_LONG:
printf("long\n");
break;
case EXTCAP_ARG_DOUBLE:
printf("double\n");
break;
case EXTCAP_ARG_BOOLEAN:
printf("boolean\n");
break;
case EXTCAP_ARG_MENU:
printf("menu\n");
break;
case EXTCAP_ARG_RADIO:
printf("radio\n");
break;
case EXTCAP_ARG_SELECTOR:
printf("selctor\n");
break;
case EXTCAP_ARG_STRING:
printf ( "string\n" );
break;
case EXTCAP_ARG_MULTICHECK:
printf ( "unknown\n" );
break;
case EXTCAP_ARG_UNKNOWN:
printf ( "unknown\n" );
break;
}
if (arg_iter->range_start != NULL && arg_iter->range_end != NULL) {
printf("\tRange: ");
extcap_printf_complex(arg_iter->range_start);
printf(" - ");
extcap_printf_complex(arg_iter->range_end);
printf("\n");
}
for ( walker = g_list_first ( arg_iter->value_list ); walker; walker = walker->next )
{
v = (extcap_value *)walker->data;
if (v->is_default)
printf("*");
printf("\tcall=\"%p\" display=\"%p\"\n", v->call, v->display);
printf("\tcall=\"%s\" display=\"%s\"\n", v->call, v->display);
}
arg_iter = arg_iter->next_arg;
}
}
#endif
#endif
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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