From d96e5685ee072d5fd80c562089c1080a53673187 Mon Sep 17 00:00:00 2001
From: Xavier Del Campo Romero <xavi.dcr@tutanota.com>
Date: Sat, 14 Oct 2023 13:05:58 +0200
Subject: [PATCH] auth.c: Fix potential signed integer overflow

For platforms where int is a 16-bit data type, this operation might
overflow and possibly cause either unexpected behaviour and/or a
compiler warning.

Therefore, it is safer to promote each integer constant accordingly.
---
 auth.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/auth.c b/auth.c
index 774e16a..1db2683 100644
--- a/auth.c
+++ b/auth.c
@@ -422,7 +422,7 @@ int auth_quota(const struct auth *const a, const char *const user,
             *available = true;
             *quota = strtoull(qs, &end, 10);
 
-            const unsigned long long mul = 1024 * 1024;
+            const unsigned long long mul = 1024ul * 1024ul;
 
             if (errno || *end != '\0')
             {
@@ -436,7 +436,7 @@ int auth_quota(const struct auth *const a, const char *const user,
                 goto end;
             }
 
-            *quota *= 1024 * 1024;
+            *quota *= mul;
             break;
         }
     }