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
|
/* Copyright 2008 The Android Open Source Project
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "binder.h"
void *svcmgr_lookup(struct binder_state *bs, void *target, const char *name)
{
void *ptr;
unsigned iodata[512/4];
struct binder_io msg, reply;
bio_init(&msg, iodata, sizeof(iodata), 4);
bio_put_string16_x(&msg, SVC_MGR_NAME);
bio_put_string16_x(&msg, name);
if (binder_call(bs, &msg, &reply, target, SVC_MGR_CHECK_SERVICE))
return 0;
ptr = bio_get_ref(&reply);
if (ptr)
binder_acquire(bs, ptr);
binder_done(bs, &msg, &reply);
return ptr;
}
int svcmgr_publish(struct binder_state *bs, void *target, const char *name, void *ptr)
{
unsigned status;
unsigned iodata[512/4];
struct binder_io msg, reply;
bio_init(&msg, iodata, sizeof(iodata), 4);
bio_put_string16_x(&msg, SVC_MGR_NAME);
bio_put_string16_x(&msg, name);
bio_put_obj(&msg, ptr);
if (binder_call(bs, &msg, &reply, target, SVC_MGR_ADD_SERVICE))
return -1;
status = bio_get_uint32(&reply);
binder_done(bs, &msg, &reply);
return status;
}
unsigned token;
int main(int argc, char **argv)
{
int fd;
struct binder_state *bs;
void *svcmgr = BINDER_SERVICE_MANAGER;
bs = binder_open(128*1024);
argc--;
argv++;
while (argc > 0) {
if (!strcmp(argv[0],"alt")) {
void *ptr = svcmgr_lookup(bs, svcmgr, "alt_svc_mgr");
if (!ptr) {
fprintf(stderr,"cannot find alt_svc_mgr\n");
return -1;
}
svcmgr = ptr;
fprintf(stderr,"svcmgr is via %p\n", ptr);
} else if (!strcmp(argv[0],"lookup")) {
void *ptr;
if (argc < 2) {
fprintf(stderr,"argument required\n");
return -1;
}
ptr = svcmgr_lookup(bs, svcmgr, argv[1]);
fprintf(stderr,"lookup(%s) = %p\n", argv[1], ptr);
argc--;
argv++;
} else if (!strcmp(argv[0],"publish")) {
if (argc < 2) {
fprintf(stderr,"argument required\n");
return -1;
}
svcmgr_publish(bs, svcmgr, argv[1], &token);
argc--;
argv++;
} else {
fprintf(stderr,"unknown command %s\n", argv[0]);
return -1;
}
argc--;
argv++;
}
return 0;
}
|