From 07a7d361fd1a56784f531cdb5b5dbeff0dad4237 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <mailroxas@gmail.com>
Date: Wed, 4 Jul 2018 23:30:48 +0300
Subject: clients: Make host word size tunable compile-time

By default we assume 64bit host, compile with -DHOST_32BIT if your
server runs on 32bit machine. Other kind of setups are not supported,
but may work.
---
 clients/linux/linux-uinput.c | 31 ++++++++++---------------------
 clients/vita/vita-uinput.c   |  7 ++++---
 2 files changed, 14 insertions(+), 24 deletions(-)

diff --git a/clients/linux/linux-uinput.c b/clients/linux/linux-uinput.c
index 0b6e901..10151e9 100644
--- a/clients/linux/linux-uinput.c
+++ b/clients/linux/linux-uinput.c
@@ -17,24 +17,21 @@ struct core {
    int input;
 };
 
-// we assume 64bit host, see packet.h for rant
-
-#if UINTPTR_MAX != 0xffffffffffffffff
-#define NOT_64BIT
-
-struct timeval_64 {
+struct timeval_host {
+#ifdef HOST_32BIT
+   uint32_t tv_sec, tv_usec;
+#else
    uint64_t tv_sec, tv_usec;
+#endif
 };
 
-struct input_event_64 {
-   struct timeval_64 time;
+struct input_event_host {
+   struct timeval_host time;
    uint16_t type;
    uint16_t code;
    int32_t value;
 };
 
-#endif
-
 static int
 _ioctl(const int fd, const unsigned long request, void *arg)
 {
@@ -234,11 +231,7 @@ info(void)
    warnx("version %s", UINPUTD_VERSION);
    warnx("remote ip: %s", (remote ? remote : "none"));
    warnx("sizeof(struct packet) is %zu bytes", sizeof(struct packet));
-#ifdef NOT_64BIT
-   warnx("sizeof(struct input_event) is %zu bytes", sizeof(struct input_event_64));
-#else
-   warnx("sizeof(struct input_event) is %zu bytes", sizeof(struct input_event));
-#endif
+   warnx("sizeof(struct input_event) is %zu bytes", sizeof(struct input_event_host));
    warnx("sizeof(struct uinput_user_dev) is %zu bytes", sizeof(struct uinput_user_dev));
 }
 
@@ -277,18 +270,14 @@ main(int argc, const char *argv[])
    {
       struct input_event event;
       while (read(core.input, &event, sizeof(event)) == sizeof(event)) {
-#ifdef NOT_64BIT
-         struct input_event_64 ev = {
+         struct input_event_host event_host = {
             .time.tv_sec = event.time.tv_sec,
             .time.tv_usec = event.time.tv_usec,
             .type = event.type,
             .code = event.code,
             .value = event.value,
          };
-         uinputd_write(sizeof(ev), &ev);
-#else
-         uinputd_write(sizeof(event), &event);
-#endif
+         uinputd_write(sizeof(event_host), &event_host);
       }
       err(EXIT_FAILURE, "read");
    }
diff --git a/clients/vita/vita-uinput.c b/clients/vita/vita-uinput.c
index 3a9b2f8..27632c2 100644
--- a/clients/vita/vita-uinput.c
+++ b/clients/vita/vita-uinput.c
@@ -81,11 +81,12 @@ struct uinput_user_dev {
    int32_t absflat[ABS_CNT];
 };
 
-/**
- * We are now expecting 64bit host, see the compatibility notes from uinputd.c
- */
 struct timeval {
+#ifdef HOST_32BIT
+   uint32_t tv_sec, tv_usec;
+#else
    uint64_t tv_sec, tv_usec;
+#endif
 };
 
 struct input_event {
-- 
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