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 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 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 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
