mirror of
https://github.com/ioacademy-jikim/android_framwork
synced 2025-06-07 16:06:29 +00:00
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "binder.h"
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uint32_t svcmgr_lookup(struct binder_state *bs, uint32_t target, const char *name)
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{
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uint32_t handle;
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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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handle = bio_get_ref(&reply);
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if (handle)
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binder_acquire(bs, handle);
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binder_done(bs, &msg, &reply);
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return handle;
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}
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int main(int argc, char **argv)
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{
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struct binder_state *bs;
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uint32_t svcmgr = BINDER_SERVICE_MANAGER;
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uint32_t handle;
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unsigned iodata[512/4];
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struct binder_io msg, reply;
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bs = binder_open("/dev/binder", 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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handle = svcmgr_lookup(bs, svcmgr, argv[argc-1]);
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fprintf(stderr,"lookup(%s) = %x\n", argv[argc-1], handle);
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bio_init(&msg, iodata, sizeof(iodata), 4);
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binder_call(bs, &msg, &reply, handle, 1);
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return 0;
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}
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