Message ID | 1385023371-8198-3-git-send-email-akong@redhat.com |
---|---|
State | New |
Headers | show |
diff --git a/backends/rng-egd.c b/backends/rng-egd.c index 6f56f9e..25bb3b4 100644 --- a/backends/rng-egd.c +++ b/backends/rng-egd.c @@ -91,12 +91,14 @@ static int rng_egd_chr_can_read(void *opaque) static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size) { RngEgd *s = RNG_EGD(opaque); + size_t buf_offset = 0; while (size > 0 && s->requests) { RngRequest *req = s->requests->data; int len = MIN(size, req->size - req->offset); - memcpy(req->data + req->offset, buf, len); + memcpy(req->data + req->offset, buf + buf_offset, len); + buf_offset += len; req->offset += len; size -= len;
The buffer content might be read out more than once, currently we just repeatedly read the first data block, buffer offset is missing. Cc: qemu-stable@nongnu.org Signed-off-by: Amos Kong <akong@redhat.com> --- backends/rng-egd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)