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#include "wire/wire_sync.h"
#include <assert.h>
#include <ccan/endian/endian.h>
#include <ccan/read_write_all/read_write_all.h>
bool wire_sync_write(int fd, const void *msg)
{
be16 be_len = cpu_to_be16(tal_count(msg));
assert(be16_to_cpu(be_len) == tal_count(msg));
return write_all(fd, &be_len, sizeof(be_len))
&& write_all(fd, msg, tal_count(msg));
}
u8 *wire_sync_read(const tal_t *ctx, int fd)
{
be16 be_len;
u8 *msg;
if (!read_all(fd, &be_len, sizeof(be_len)))
return NULL;
msg = tal_arr(ctx, u8, be16_to_cpu(be_len));
if (!read_all(fd, msg, be16_to_cpu(be_len)))
return tal_free(msg);
return msg;
}