1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/* capture_combo_utils.c
* Utilities for combo box of interface names
*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_LIBPCAP
#include <pcap.h>
#include <string.h>
#include <gtk/gtk.h>
#include "prefs.h"
#include "pcap-util.h"
#include "capture_combo_utils.h"
/*
* Find capture device description that matches interface name.
*/
static char *
capture_dev_descr_find(const gchar *if_name)
{
char *p;
char *p2 = NULL;
char *descr = NULL;
int lp = 0;
int ct = 0;
if (prefs.capture_devices_descr == NULL) {
/* There are no descriptions. */
return NULL;
}
if ((p = strstr(prefs.capture_devices_descr, if_name)) == NULL) {
/* There are, but there isn't one for this interface. */
return NULL;
}
while (*p != '\0') {
/* error: ran into next interface description */
if (*p == ',')
return NULL;
/* found left parenthesis, start of description */
else if (*p == '(') {
ct = 0;
lp++;
/* skip over left parenthesis */
p++;
/* save pointer to beginning of description */
p2 = p;
continue;
}
else if (*p == ')') {
/* end of description */
break;
}
else {
p++;
ct++;
}
}
if ((lp == 1) && (ct > 0) && (p2 != NULL)) {
/* Allocate enough space to return the string,
which runs from p2 to p, plus a terminating
'\0'. */
descr = g_malloc(p - p2 + 1);
memcpy(descr, p2, p - p2);
descr[p - p2] = '\0';
return descr;
}
else
return NULL;
}
GList *
build_capture_combo_list(GList *if_list, gboolean do_hide)
{
GList *combo_list;
GList *if_entry;
if_info_t *if_info;
char *if_string;
gchar *descr;
combo_list = NULL;
if (if_list != NULL) {
/* Scan through the list and build a list of strings to display. */
for (if_entry = if_list; if_entry != NULL;
if_entry = g_list_next(if_entry)) {
if_info = if_entry->data;
/* Is this interface hidden and, if so, should we include it
anyway? */
if (prefs.capture_devices_hide == NULL ||
strstr(prefs.capture_devices_hide, if_info->name) == NULL ||
!do_hide) {
/* It's not hidden, or it is but we should include it in the list. */
/* Do we have a user-supplied description? */
descr = capture_dev_descr_find(if_info->name);
if (descr != NULL) {
/* Yes, we have a user-supplied description; use it. */
if_string = g_strdup_printf("%s: %s", descr, if_info->name);
g_free(descr);
} else {
/* No, we don't have a user-supplied description; did we get
one from the OS or libpcap? */
if (if_info->description != NULL) {
/* Yes - use it. */
if_string = g_strdup_printf("%s: %s", if_info->description,
if_info->name);
} else {
/* No. */
if_string = g_strdup(if_info->name);
}
}
combo_list = g_list_append(combo_list, if_string);
}
}
}
return combo_list;
}
static void
free_if_string(gpointer data, gpointer user_data _U_)
{
g_free(data);
}
void
free_capture_combo_list(GList *combo_list)
{
if (combo_list != NULL) {
g_list_foreach(combo_list, free_if_string, NULL);
g_list_free(combo_list);
}
}
#endif /* HAVE_LIBPCAP */
|
