Function write_to_child

http-backend.c:297–301

}

static void write_to_child(int out, const unsigned char *buf, ssize_t len, const char *prog_name)
{
	if (write_in_full(out, buf, len) < 0)
		die("unable to write to '%s'", prog_name);
}

/*
 * This is basically strbuf_read(), except that if we