ldp: return byte count from a successful recvfrom
Unless there's an error, recvfrom should return the number of bytes
received. The current code returns zero on success due to
ldp_copy_ep_to_sockaddr returning zero.
@@ -1478,7 +1478,7 @@ recvfrom (int fd, void *__restrict buf, size_t n, int flags,
__SOCKADDR_ARG addr, socklen_t * __restrict addr_len)
{
vls_handle_t sid;
- ssize_t size;
+ ssize_t size, rv;
if ((errno = -ldp_init ()))
return -1;
@@ -1495,7 +1495,11 @@ recvfrom (int fd, void *__restrict buf, size_t n, int flags,
size = vls_recvfrom (sid, buf, n, flags, &ep);
if (size > 0)
- size = ldp_copy_ep_to_sockaddr (addr, addr_len, &ep);
+ {
+ rv = ldp_copy_ep_to_sockaddr (addr, addr_len, &ep);
+ if (rv < 0)
+ size = rv;
+ }
}
else
size = vls_recvfrom (sid, buf, n, flags, NULL);
