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