1 /* Copyright 2008 The Android Open Source Project
2 */
3
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <errno.h>
7
8 #include "binder.h"
9
svcmgr_lookup(struct binder_state * bs,uint32_t target,const char * name)10 uint32_t svcmgr_lookup(struct binder_state *bs, uint32_t target, const char *name)
11 {
12 uint32_t handle;
13 unsigned iodata[512/4];
14 struct binder_io msg, reply;
15
16 bio_init(&msg, iodata, sizeof(iodata), 4);
17 bio_put_uint32(&msg, 0); // strict mode header
18 bio_put_string16_x(&msg, SVC_MGR_NAME);
19 bio_put_string16_x(&msg, name);
20
21 if (binder_call(bs, &msg, &reply, target, SVC_MGR_CHECK_SERVICE))
22 return 0;
23
24 handle = bio_get_ref(&reply);
25
26 if (handle)
27 binder_acquire(bs, handle);
28
29 binder_done(bs, &msg, &reply);
30
31 return handle;
32 }
33
svcmgr_publish(struct binder_state * bs,uint32_t target,const char * name,void * ptr)34 int svcmgr_publish(struct binder_state *bs, uint32_t target, const char *name, void *ptr)
35 {
36 int status;
37 unsigned iodata[512/4];
38 struct binder_io msg, reply;
39
40 bio_init(&msg, iodata, sizeof(iodata), 4);
41 bio_put_uint32(&msg, 0); // strict mode header
42 bio_put_string16_x(&msg, SVC_MGR_NAME);
43 bio_put_string16_x(&msg, name);
44 bio_put_obj(&msg, ptr);
45
46 if (binder_call(bs, &msg, &reply, target, SVC_MGR_ADD_SERVICE))
47 return -1;
48
49 status = bio_get_uint32(&reply);
50
51 binder_done(bs, &msg, &reply);
52
53 return status;
54 }
55
56 unsigned token;
57
main(int argc,char ** argv)58 int main(int argc, char **argv)
59 {
60 int fd;
61 struct binder_state *bs;
62 uint32_t svcmgr = BINDER_SERVICE_MANAGER;
63 uint32_t handle;
64
65 bs = binder_open(128*1024);
66 if (!bs) {
67 fprintf(stderr, "failed to open binder driver\n");
68 return -1;
69 }
70
71 argc--;
72 argv++;
73 while (argc > 0) {
74 if (!strcmp(argv[0],"alt")) {
75 handle = svcmgr_lookup(bs, svcmgr, "alt_svc_mgr");
76 if (!handle) {
77 fprintf(stderr,"cannot find alt_svc_mgr\n");
78 return -1;
79 }
80 svcmgr = handle;
81 fprintf(stderr,"svcmgr is via %x\n", handle);
82 } else if (!strcmp(argv[0],"lookup")) {
83 if (argc < 2) {
84 fprintf(stderr,"argument required\n");
85 return -1;
86 }
87 handle = svcmgr_lookup(bs, svcmgr, argv[1]);
88 fprintf(stderr,"lookup(%s) = %x\n", argv[1], handle);
89 argc--;
90 argv++;
91 } else if (!strcmp(argv[0],"publish")) {
92 if (argc < 2) {
93 fprintf(stderr,"argument required\n");
94 return -1;
95 }
96 svcmgr_publish(bs, svcmgr, argv[1], &token);
97 argc--;
98 argv++;
99 } else {
100 fprintf(stderr,"unknown command %s\n", argv[0]);
101 return -1;
102 }
103 argc--;
104 argv++;
105 }
106 return 0;
107 }
108