bctest.c revision 824e30e5ed35b8f416fea12ce574b012aedaaab5 
1/* Copyright 2008 The Android Open Source Project
2 */
3
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7#include <errno.h>
8
9#include "binder.h"
10
11uint32_t svcmgr_lookup(struct binder_state *bs, uint32_t target, const char *name)
12{
13    uint32_t handle;
14    unsigned iodata[512/4];
15    struct binder_io msg, reply;
16
17    bio_init(&msg, iodata, sizeof(iodata), 4);
18    bio_put_uint32(&msg, 0);  // strict mode header
19    bio_put_string16_x(&msg, SVC_MGR_NAME);
20    bio_put_string16_x(&msg, name);
21
22    if (binder_call(bs, &msg, &reply, target, SVC_MGR_CHECK_SERVICE))
23        return 0;
24
25    handle = bio_get_ref(&reply);
26
27    if (handle)
28        binder_acquire(bs, handle);
29
30    binder_done(bs, &msg, &reply);
31
32    return handle;
33}
34
35int svcmgr_publish(struct binder_state *bs, uint32_t target, const char *name, void *ptr)
36{
37    int status;
38    unsigned iodata[512/4];
39    struct binder_io msg, reply;
40
41    bio_init(&msg, iodata, sizeof(iodata), 4);
42    bio_put_uint32(&msg, 0);  // strict mode header
43    bio_put_string16_x(&msg, SVC_MGR_NAME);
44    bio_put_string16_x(&msg, name);
45    bio_put_obj(&msg, ptr);
46
47    if (binder_call(bs, &msg, &reply, target, SVC_MGR_ADD_SERVICE))
48        return -1;
49
50    status = bio_get_uint32(&reply);
51
52    binder_done(bs, &msg, &reply);
53
54    return status;
55}
56
57unsigned token;
58
59int main(int argc, char **argv)
60{
61    int fd;
62    struct binder_state *bs;
63    uint32_t svcmgr = BINDER_SERVICE_MANAGER;
64    uint32_t handle;
65
66    bs = binder_open(128*1024);
67    if (!bs) {
68        fprintf(stderr, "failed to open binder driver\n");
69        return -1;
70    }
71
72    argc--;
73    argv++;
74    while (argc > 0) {
75        if (!strcmp(argv[0],"alt")) {
76            handle = svcmgr_lookup(bs, svcmgr, "alt_svc_mgr");
77            if (!handle) {
78                fprintf(stderr,"cannot find alt_svc_mgr\n");
79                return -1;
80            }
81            svcmgr = handle;
82            fprintf(stderr,"svcmgr is via %x\n", handle);
83        } else if (!strcmp(argv[0],"lookup")) {
84            if (argc < 2) {
85                fprintf(stderr,"argument required\n");
86                return -1;
87            }
88            handle = svcmgr_lookup(bs, svcmgr, argv[1]);
89            fprintf(stderr,"lookup(%s) = %x\n", argv[1], handle);
90            argc--;
91            argv++;
92        } else if (!strcmp(argv[0],"publish")) {
93            if (argc < 2) {
94                fprintf(stderr,"argument required\n");
95                return -1;
96            }
97            svcmgr_publish(bs, svcmgr, argv[1], &token);
98            argc--;
99            argv++;
100        } else {
101            fprintf(stderr,"unknown command %s\n", argv[0]);
102            return -1;
103        }
104        argc--;
105        argv++;
106    }
107    return 0;
108}
109