1 /*
2 * Copyright 2014 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 <dumpstate.h>
18 #include <errno.h>
19 #include <fcntl.h>
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <string.h>
23
24 static const char base64[] =
25 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
26 static const char pad64 = '=';
27
base64_output3(const unsigned char * src,int len)28 static void base64_output3(const unsigned char *src, int len)
29 {
30 printf("%c", base64[src[0] >> 2]);
31 printf("%c", base64[((src[0] & 0x03) << 4) | (src[1] >> 4)]);
32 if (len == 1) {
33 printf("==");
34 return;
35 }
36 printf("%c", base64[((src[1] & 0x0F) << 2) | (src[2] >> 6)]);
37 if (len == 2) {
38 printf("=");
39 return;
40 }
41 printf("%c", base64[src[2] & 0x3F]);
42 }
43
fugu_dump_base64(const char * path)44 static void fugu_dump_base64(const char *path)
45 {
46
47 printf("------ (%s) ------\n", path);
48 int fd = open(path, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
49 if (fd < 0) {
50 printf("*** %s: %s\n\n", path, strerror(errno));
51 return;
52 }
53
54 /* buffer size multiple of 3 for ease of use */
55 unsigned char buffer[1200];
56 int left = 0;
57 int count = 0;
58 for (;;) {
59 int ret = read(fd, &buffer[left], sizeof(buffer) - left);
60 if (ret <= 0) {
61 break;
62 }
63 left += ret;
64 int ofs = 0;
65 while (left > 2) {
66 base64_output3(&buffer[ofs], 3);
67 left -= 3;
68 ofs += 3;
69 count += 4;
70 if (count > 72) {
71 printf("\n");
72 count = 0;
73 }
74 }
75 if (left) {
76 memmove(buffer, &buffer[ofs], left);
77 }
78 }
79 close(fd);
80
81 if (!left) {
82 printf("\n------ end ------\n");
83 return;
84 }
85
86 /* finish padding */
87 count = left;
88 while (count < 3) {
89 buffer[count++] = 0;
90 }
91 base64_output3(buffer, left);
92
93 printf("\n------ end ------\n");
94 }
95
dumpstate_board()96 void dumpstate_board()
97 {
98 dump_file("INTERRUPTS", "/proc/interrupts");
99 dump_file("last ipanic_console", "/data/dontpanic/ipanic_console");
100 dump_file("last ipanic_threads", "/data/dontpanic/ipanic_threads");
101 fugu_dump_base64("/dev/snd_atvr_mSBC");
102 fugu_dump_base64("/dev/snd_atvr_pcm");
103 };
104