a44542ca74
This patch extends the error handling. It also adds a check for a matching binder version - kernel/userspace. Change-Id: I43a262934b38c5711536aaa42754fed1ef04b39e Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* Copyright 2008 The Android Open Source Project
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "binder.h"
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void *svcmgr_lookup(struct binder_state *bs, void *target, const char *name)
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{
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void *ptr;
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unsigned iodata[512/4];
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struct binder_io msg, reply;
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bio_init(&msg, iodata, sizeof(iodata), 4);
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bio_put_uint32(&msg, 0); // strict mode header
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bio_put_string16_x(&msg, SVC_MGR_NAME);
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bio_put_string16_x(&msg, name);
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if (binder_call(bs, &msg, &reply, target, SVC_MGR_CHECK_SERVICE))
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return 0;
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ptr = bio_get_ref(&reply);
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if (ptr)
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binder_acquire(bs, ptr);
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binder_done(bs, &msg, &reply);
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return ptr;
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}
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int svcmgr_publish(struct binder_state *bs, void *target, const char *name, void *ptr)
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{
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unsigned status;
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unsigned iodata[512/4];
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struct binder_io msg, reply;
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bio_init(&msg, iodata, sizeof(iodata), 4);
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bio_put_uint32(&msg, 0); // strict mode header
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bio_put_string16_x(&msg, SVC_MGR_NAME);
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bio_put_string16_x(&msg, name);
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bio_put_obj(&msg, ptr);
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if (binder_call(bs, &msg, &reply, target, SVC_MGR_ADD_SERVICE))
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return -1;
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status = bio_get_uint32(&reply);
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binder_done(bs, &msg, &reply);
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return status;
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}
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unsigned token;
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int main(int argc, char **argv)
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{
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int fd;
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struct binder_state *bs;
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void *svcmgr = BINDER_SERVICE_MANAGER;
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bs = binder_open(128*1024);
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if (!bs) {
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fprintf(stderr, "failed to open binder driver\n");
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return -1;
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}
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argc--;
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argv++;
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while (argc > 0) {
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if (!strcmp(argv[0],"alt")) {
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void *ptr = svcmgr_lookup(bs, svcmgr, "alt_svc_mgr");
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if (!ptr) {
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fprintf(stderr,"cannot find alt_svc_mgr\n");
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return -1;
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}
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svcmgr = ptr;
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fprintf(stderr,"svcmgr is via %p\n", ptr);
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} else if (!strcmp(argv[0],"lookup")) {
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void *ptr;
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if (argc < 2) {
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fprintf(stderr,"argument required\n");
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return -1;
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}
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ptr = svcmgr_lookup(bs, svcmgr, argv[1]);
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fprintf(stderr,"lookup(%s) = %p\n", argv[1], ptr);
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argc--;
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argv++;
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} else if (!strcmp(argv[0],"publish")) {
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if (argc < 2) {
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fprintf(stderr,"argument required\n");
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return -1;
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}
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svcmgr_publish(bs, svcmgr, argv[1], &token);
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argc--;
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argv++;
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} else {
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fprintf(stderr,"unknown command %s\n", argv[0]);
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return -1;
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}
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argc--;
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argv++;
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}
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return 0;
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}
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