From ca68fc20403700a7aadc238372420e8ffdb42cc5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Fri, 11 Sep 2020 17:43:40 +0200
Subject: [PATCH] eek-keyboard: Don't ignore return value
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This fixes

../eek/eek-keyboard.c:71:5: warning: ignoring return value of ‘getrandom’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   71 |     getrandom(r, 6, GRND_NONBLOCK);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[17/32] Compiling C object 'src/25a6634@@libsqueekboard@sta/.._eek_eek-renderer.c.o'
---
 eek/eek-keyboard.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/eek/eek-keyboard.c b/eek/eek-keyboard.c
index 292a0879..7d000480 100644
--- a/eek/eek-keyboard.c
+++ b/eek/eek-keyboard.c
@@ -21,6 +21,7 @@
 #include "config.h"
 
 #define _XOPEN_SOURCE 500
+#include <errno.h>
 #include <fcntl.h>
 #include <string.h>
 #include <sys/mman.h>
@@ -68,7 +69,8 @@ level_keyboard_new (struct squeek_layout *layout)
 
     g_autofree char *path = strdup("/eek_keymap-XXXXXX");
     char *r = &path[strlen(path) - 6];
-    getrandom(r, 6, GRND_NONBLOCK);
+    if (getrandom(r, 6, GRND_NONBLOCK) < 0)
+        g_error("Failed to get random numbers: %s", strerror(errno));
     for (unsigned i = 0; i < 6; i++) {
         r[i] = (r[i] & 0b1111111) | 0b1000000; // A-z
         r[i] = r[i] > 'z' ? '?' : r[i]; // The randomizer doesn't need to be good...