usb_vendors.c revision 16f1550b51a12187799bb9d577839f2812c949d6 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "usb_vendors.h"
18
19#include <stdio.h>
20
21#ifdef _WIN32
22#  define WIN32_LEAN_AND_MEAN
23#  include "windows.h"
24#  include "shlobj.h"
25#else
26#  include <unistd.h>
27#  include <sys/stat.h>
28#endif
29
30#include "sysdeps.h"
31#include "adb.h"
32
33#define ANDROID_PATH            ".android"
34#define ANDROID_ADB_INI         "adb_usb.ini"
35
36#define TRACE_TAG               TRACE_USB
37
38// Google's USB Vendor ID
39#define VENDOR_ID_GOOGLE        0x18d1
40// HTC's USB Vendor ID
41#define VENDOR_ID_HTC           0x0bb4
42// Samsung's USB Vendor ID
43#define VENDOR_ID_SAMSUNG       0x04e8
44// Motorola's USB Vendor ID
45#define VENDOR_ID_MOTOROLA      0x22b8
46// LG's USB Vendor ID
47#define VENDOR_ID_LGE           0x1004
48// Huawei's USB Vendor ID
49#define VENDOR_ID_HUAWEI        0x12D1
50// Acer's USB Vendor ID
51#define VENDOR_ID_ACER          0x0502
52// Sony Ericsson's USB Vendor ID
53#define VENDOR_ID_SONY_ERICSSON 0x0FCE
54// Foxconn's USB Vendor ID
55#define VENDOR_ID_FOXCONN       0x0489
56// Dell's USB Vendor ID
57#define VENDOR_ID_DELL          0x413c
58// Nvidia's USB Vendor ID
59#define VENDOR_ID_NVIDIA        0x0955
60// Garmin-Asus's USB Vendor ID
61#define VENDOR_ID_GARMIN_ASUS   0x091E
62// Sharp's USB Vendor ID
63#define VENDOR_ID_SHARP         0x04dd
64// ZTE's USB Vendor ID
65#define VENDOR_ID_ZTE           0x19D2
66
67/** built-in vendor list */
68int builtInVendorIds[] = {
69    VENDOR_ID_GOOGLE,
70    VENDOR_ID_HTC,
71    VENDOR_ID_SAMSUNG,
72    VENDOR_ID_MOTOROLA,
73    VENDOR_ID_LGE,
74    VENDOR_ID_HUAWEI,
75    VENDOR_ID_ACER,
76    VENDOR_ID_SONY_ERICSSON,
77    VENDOR_ID_FOXCONN,
78    VENDOR_ID_DELL,
79    VENDOR_ID_NVIDIA,
80    VENDOR_ID_GARMIN_ASUS,
81    VENDOR_ID_SHARP,
82    VENDOR_ID_ZTE,
83};
84
85#define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))
86
87/* max number of supported vendor ids (built-in + 3rd party). increase as needed */
88#define VENDOR_COUNT_MAX         128
89
90int vendorIds[VENDOR_COUNT_MAX];
91unsigned vendorIdCount = 0;
92
93int get_adb_usb_ini(char* buff, size_t len);
94
95void usb_vendors_init(void)
96{
97    if (VENDOR_COUNT_MAX < BUILT_IN_VENDOR_COUNT) {
98        fprintf(stderr, "VENDOR_COUNT_MAX not big enough for built-in vendor list.\n");
99        exit(2);
100    }
101
102    /* add the built-in vendors at the beginning of the array */
103    memcpy(vendorIds, builtInVendorIds, sizeof(builtInVendorIds));
104
105    /* default array size is the number of built-in vendors */
106    vendorIdCount = BUILT_IN_VENDOR_COUNT;
107
108    if (VENDOR_COUNT_MAX == BUILT_IN_VENDOR_COUNT)
109        return;
110
111    char temp[PATH_MAX];
112    if (get_adb_usb_ini(temp, sizeof(temp)) == 0) {
113        FILE * f = fopen(temp, "rt");
114
115        if (f != NULL) {
116            /* The vendor id file is pretty basic. 1 vendor id per line.
117               Lines starting with # are comments */
118            while (fgets(temp, sizeof(temp), f) != NULL) {
119                if (temp[0] == '#')
120                    continue;
121
122                long value = strtol(temp, NULL, 0);
123                if (errno == EINVAL || errno == ERANGE || value > INT_MAX || value < 0) {
124                    fprintf(stderr, "Invalid content in %s. Quitting.\n", ANDROID_ADB_INI);
125                    exit(2);
126                }
127
128                vendorIds[vendorIdCount++] = (int)value;
129
130                /* make sure we don't go beyond the array */
131                if (vendorIdCount == VENDOR_COUNT_MAX) {
132                    break;
133                }
134            }
135        }
136    }
137}
138
139/* Utils methods */
140
141/* builds the path to the adb vendor id file. returns 0 if success */
142int build_path(char* buff, size_t len, const char* format, const char* home)
143{
144    if (snprintf(buff, len, format, home, ANDROID_PATH, ANDROID_ADB_INI) >= len) {
145        return 1;
146    }
147
148    return 0;
149}
150
151/* fills buff with the path to the adb vendor id file. returns 0 if success */
152int get_adb_usb_ini(char* buff, size_t len)
153{
154#ifdef _WIN32
155    const char* home = getenv("ANDROID_SDK_HOME");
156    if (home != NULL) {
157        return build_path(buff, len, "%s\\%s\\%s", home);
158    } else {
159        char path[MAX_PATH];
160        SHGetFolderPath( NULL, CSIDL_PROFILE, NULL, 0, path);
161        return build_path(buff, len, "%s\\%s\\%s", path);
162    }
163#else
164    const char* home = getenv("HOME");
165    if (home == NULL)
166        home = "/tmp";
167
168    return build_path(buff, len, "%s/%s/%s", home);
169#endif
170}
171