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tools/zmqsend: Avoid mem copy past the end of input buffer

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This patch avoids a read past the end of the input buffer in memcpy since the size
of the received zmq message is recv_buf_size - 1.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andriy Gelman 2019-08-08 10:37:10 -04:00 committed by Michael Niedermayer
parent 86d13e95e7
commit 90e965be6d
1 changed files with 1 additions and 1 deletions
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2
tools/zmqsend.c
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@ -155,7 +155,7 @@ int main(int argc, char **argv)
ret = 1; ret = 1;
goto end; goto end;
} }
memcpy(recv_buf, zmq_msg_data(&msg), recv_buf_size); memcpy(recv_buf, zmq_msg_data(&msg), recv_buf_size - 1);
recv_buf[recv_buf_size-1] = 0; recv_buf[recv_buf_size-1] = 0;
printf("%s\n", recv_buf); printf("%s\n", recv_buf);
zmq_msg_close(&msg); zmq_msg_close(&msg);