usb_vendors.c revision 23433b93d1acb01650c9480d9bb5d5d869ba4f79 
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
55/** built-in vendor list */
56int builtInVendorIds[] = {
57    VENDOR_ID_GOOGLE,
58    VENDOR_ID_HTC,
59    VENDOR_ID_SAMSUNG,
60    VENDOR_ID_MOTOROLA,
61    VENDOR_ID_LGE,
62    VENDOR_ID_HUAWEI,
63    VENDOR_ID_ACER,
64    VENDOR_ID_SONY_ERICSSON,
65};
66
67#define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))
68
69/* max number of supported vendor ids (built-in + 3rd party). increase as needed */
70#define VENDOR_COUNT_MAX         128
71
72int vendorIds[VENDOR_COUNT_MAX];
73unsigned vendorIdCount = 0;
74
75int get_adb_usb_ini(char* buff, size_t len);
76
77void usb_vendors_init(void)
78{
79    if (VENDOR_COUNT_MAX < BUILT_IN_VENDOR_COUNT) {
80        fprintf(stderr, "VENDOR_COUNT_MAX not big enough for built-in vendor list.\n");
81        exit(2);
82    }
83
84    /* add the built-in vendors at the beginning of the array */
85    memcpy(vendorIds, builtInVendorIds, sizeof(builtInVendorIds));
86
87    /* default array size is the number of built-in vendors */
88    vendorIdCount = BUILT_IN_VENDOR_COUNT;
89
90    if (VENDOR_COUNT_MAX == BUILT_IN_VENDOR_COUNT)
91        return;
92
93    char temp[PATH_MAX];
94    if (get_adb_usb_ini(temp, sizeof(temp)) == 0) {
95        FILE * f = fopen(temp, "rt");
96
97        if (f != NULL) {
98            /* The vendor id file is pretty basic. 1 vendor id per line.
99               Lines starting with # are comments */
100            while (fgets(temp, sizeof(temp), f) != NULL) {
101                if (temp[0] == '#')
102                    continue;
103
104                long value = strtol(temp, NULL, 0);
105                if (errno == EINVAL || errno == ERANGE || value > INT_MAX || value < 0) {
106                    fprintf(stderr, "Invalid content in %s. Quitting.\n", ANDROID_ADB_INI);
107                    exit(2);
108                }
109
110                vendorIds[vendorIdCount++] = (int)value;
111
112                /* make sure we don't go beyond the array */
113                if (vendorIdCount == VENDOR_COUNT_MAX) {
114                    break;
115                }
116            }
117        }
118    }
119}
120
121/* Utils methods */
122
123/* builds the path to the adb vendor id file. returns 0 if success */
124int build_path(char* buff, size_t len, const char* format, const char* home)
125{
126    if (snprintf(buff, len, format, home, ANDROID_PATH, ANDROID_ADB_INI) >= len) {
127        return 1;
128    }
129
130    return 0;
131}
132
133/* fills buff with the path to the adb vendor id file. returns 0 if success */
134int get_adb_usb_ini(char* buff, size_t len)
135{
136#ifdef _WIN32
137    const char* home = getenv("ANDROID_SDK_HOME");
138    if (home != NULL) {
139        return build_path(buff, len, "%s\\%s\\%s", home);
140    } else {
141        char path[MAX_PATH];
142        SHGetFolderPath( NULL, CSIDL_PROFILE, NULL, 0, path);
143        return build_path(buff, len, "%s\\%s\\%s", path);
144    }
145#else
146    const char* home = getenv("HOME");
147    if (home == NULL)
148        home = "/tmp";
149
150    return build_path(buff, len, "%s/%s/%s", home);
151#endif
152}
153