usb_vendors.c revision 1873adc2b12d5a9045bae90650bb331c7c7aa3c7
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// Dell's USB Vendor ID
55#define VENDOR_ID_DELL          0x413c
56// Garmin-Asus's USB Vendor ID
57#define VENDOR_ID_GARMIN_ASUS   0x091E
58
59/** built-in vendor list */
60int builtInVendorIds[] = {
61    VENDOR_ID_GOOGLE,
62    VENDOR_ID_HTC,
63    VENDOR_ID_SAMSUNG,
64    VENDOR_ID_MOTOROLA,
65    VENDOR_ID_LGE,
66    VENDOR_ID_HUAWEI,
67    VENDOR_ID_ACER,
68    VENDOR_ID_SONY_ERICSSON,
69    VENDOR_ID_DELL,
70    VENDOR_ID_GARMIN_ASUS,
71};
72
73#define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))
74
75/* max number of supported vendor ids (built-in + 3rd party). increase as needed */
76#define VENDOR_COUNT_MAX         128
77
78int vendorIds[VENDOR_COUNT_MAX];
79unsigned vendorIdCount = 0;
80
81int get_adb_usb_ini(char* buff, size_t len);
82
83void usb_vendors_init(void)
84{
85    if (VENDOR_COUNT_MAX < BUILT_IN_VENDOR_COUNT) {
86        fprintf(stderr, "VENDOR_COUNT_MAX not big enough for built-in vendor list.\n");
87        exit(2);
88    }
89
90    /* add the built-in vendors at the beginning of the array */
91    memcpy(vendorIds, builtInVendorIds, sizeof(builtInVendorIds));
92
93    /* default array size is the number of built-in vendors */
94    vendorIdCount = BUILT_IN_VENDOR_COUNT;
95
96    if (VENDOR_COUNT_MAX == BUILT_IN_VENDOR_COUNT)
97        return;
98
99    char temp[PATH_MAX];
100    if (get_adb_usb_ini(temp, sizeof(temp)) == 0) {
101        FILE * f = fopen(temp, "rt");
102
103        if (f != NULL) {
104            /* The vendor id file is pretty basic. 1 vendor id per line.
105               Lines starting with # are comments */
106            while (fgets(temp, sizeof(temp), f) != NULL) {
107                if (temp[0] == '#')
108                    continue;
109
110                long value = strtol(temp, NULL, 0);
111                if (errno == EINVAL || errno == ERANGE || value > INT_MAX || value < 0) {
112                    fprintf(stderr, "Invalid content in %s. Quitting.\n", ANDROID_ADB_INI);
113                    exit(2);
114                }
115
116                vendorIds[vendorIdCount++] = (int)value;
117
118                /* make sure we don't go beyond the array */
119                if (vendorIdCount == VENDOR_COUNT_MAX) {
120                    break;
121                }
122            }
123        }
124    }
125}
126
127/* Utils methods */
128
129/* builds the path to the adb vendor id file. returns 0 if success */
130int build_path(char* buff, size_t len, const char* format, const char* home)
131{
132    if (snprintf(buff, len, format, home, ANDROID_PATH, ANDROID_ADB_INI) >= len) {
133        return 1;
134    }
135
136    return 0;
137}
138
139/* fills buff with the path to the adb vendor id file. returns 0 if success */
140int get_adb_usb_ini(char* buff, size_t len)
141{
142#ifdef _WIN32
143    const char* home = getenv("ANDROID_SDK_HOME");
144    if (home != NULL) {
145        return build_path(buff, len, "%s\\%s\\%s", home);
146    } else {
147        char path[MAX_PATH];
148        SHGetFolderPath( NULL, CSIDL_PROFILE, NULL, 0, path);
149        return build_path(buff, len, "%s\\%s\\%s", path);
150    }
151#else
152    const char* home = getenv("HOME");
153    if (home == NULL)
154        home = "/tmp";
155
156    return build_path(buff, len, "%s/%s/%s", home);
157#endif
158}
159