+
+void *do_tal_realloc(void *p, size_t size)
+{
+ tal_resize((char **)&p, size);
+ return p;
+}
+
+void *tal_grab_file(const void *ctx, const char *filename, size_t *size)
+{
+ struct rbuf rbuf;
+ char *buf = tal_arr(ctx, char, 0);
+
+ if (!rbuf_open(&rbuf, filename, buf, 0))
+ return tal_free(buf);
+
+ if (!rbuf_fill_all(&rbuf, do_tal_realloc) && errno)
+ rbuf.buf = tal_free(rbuf.buf);
+ else {
+ rbuf.buf[rbuf.len] = '\0';
+ if (size)
+ *size = rbuf.len;
+ }
+ close(rbuf.fd);
+
+ return rbuf.buf;
+}