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
|
/*
* Copyright (C) 2012, The CyanogenMod Project
* Daniel Hillenbrand <codeworkx@cyanogenmod.com>
* Marco Hillenbrand <marco.hillenbrand@googlemail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <cutils/log.h>
#define LOG_TAG "macloader"
#define LOG_NDEBUG 0
#define MACADDR_PATH "/efs/wifi/.mac.info"
#define CID_PATH "/data/.cid.info"
/*
* murata:
* 00:37:6d
* 88:30:8a
*
* semcove:
*
*/
int main() {
FILE* file;
FILE* cidfile;
char* str;
char mac_addr_half[9];
int ret = -1;
int amode;
/* open mac addr file */
file = fopen(MACADDR_PATH, "r");
if(file == 0) {
fprintf(stderr, "open(%s) failed\n", MACADDR_PATH);
LOGE("Can't open %s\n", MACADDR_PATH);
return -1;
}
/* get and compare mac addr */
str = fgets(mac_addr_half, 9, file);
if(str == 0) {
fprintf(stderr, "fgets() from file %s failed\n", MACADDR_PATH);
LOGE("Can't read from %s\n", MACADDR_PATH);
return -1;
}
/* murata */
if(strncmp(mac_addr_half, "00:37:6d", 9) == 0 || strncmp(mac_addr_half, "88:30:8a", 9) == 0) {
/* open cid file */
cidfile = fopen(CID_PATH, "w");
if(cidfile == 0) {
fprintf(stderr, "open(%s) failed\n", CID_PATH);
LOGE("Can't open %s\n", CID_PATH);
return -1;
}
/* write murata to cid file */
LOGD("Writing murata to %s\n", CID_PATH);
ret = fputs("murata", cidfile);
if(ret != 0) {
fprintf(stderr, "fputs() to file %s failed\n", CID_PATH);
LOGE("Can't write to %s\n", CID_PATH);
return -1;
}
fclose(cidfile);
/* set permissions on cid file */
LOGD("Setting permissions on %s\n", CID_PATH);
amode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;
ret = chmod(CID_PATH, amode);
char* chown_cmd = (char*) malloc(strlen("chown system ") + strlen(CID_PATH));
char* chgrp_cmd = (char*) malloc(strlen("chgrp system ") + strlen(CID_PATH));
sprintf(chown_cmd, "chown system %s", CID_PATH);
sprintf(chgrp_cmd, "chgrp system %s", CID_PATH);
system(chown_cmd);
system(chgrp_cmd);
if(ret != 0) {
fprintf(stderr, "chmod() on file %s failed\n", CID_PATH);
LOGE("Can't set permissions on %s\n", CID_PATH);
return ret;
}
} else {
/* delete cid file if not murata or semcove */
LOGD("Deleting file %s\n", CID_PATH);
remove(CID_PATH);
}
fclose(file);
return 0;
}
|
