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,void * target,const char * name)10 void *svcmgr_lookup(struct binder_state *bs, void *target, const char *name)
11 {
12 void *ptr;
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 ptr = bio_get_ref(&reply);
25
26 if (ptr)
27 binder_acquire(bs, ptr);
28
29 binder_done(bs, &msg, &reply);
30
31 return ptr;
32 }
33
svcmgr_publish(struct binder_state * bs,void * target,const char * name,void * ptr)34 int svcmgr_publish(struct binder_state *bs, void *target, const char *name, void *ptr)
35 {
36 unsigned 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 void *svcmgr = BINDER_SERVICE_MANAGER;
63
64 bs = binder_open(128*1024);
65
66 argc--;
67 argv++;
68 while (argc > 0) {
69 if (!strcmp(argv[0],"alt")) {
70 void *ptr = svcmgr_lookup(bs, svcmgr, "alt_svc_mgr");
71 if (!ptr) {
72 fprintf(stderr,"cannot find alt_svc_mgr\n");
73 return -1;
74 }
75 svcmgr = ptr;
76 fprintf(stderr,"svcmgr is via %p\n", ptr);
77 } else if (!strcmp(argv[0],"lookup")) {
78 void *ptr;
79 if (argc < 2) {
80 fprintf(stderr,"argument required\n");
81 return -1;
82 }
83 ptr = svcmgr_lookup(bs, svcmgr, argv[1]);
84 fprintf(stderr,"lookup(%s) = %p\n", argv[1], ptr);
85 argc--;
86 argv++;
87 } else if (!strcmp(argv[0],"publish")) {
88 if (argc < 2) {
89 fprintf(stderr,"argument required\n");
90 return -1;
91 }
92 svcmgr_publish(bs, svcmgr, argv[1], &token);
93 argc--;
94 argv++;
95 } else {
96 fprintf(stderr,"unknown command %s\n", argv[0]);
97 return -1;
98 }
99 argc--;
100 argv++;
101 }
102 return 0;
103 }
104