From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/shared/quota-util.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 src/shared/quota-util.h (limited to 'src/shared/quota-util.h') diff --git a/src/shared/quota-util.h b/src/shared/quota-util.h new file mode 100644 index 0000000..fc39522 --- /dev/null +++ b/src/shared/quota-util.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include +#include +#include + +/* Wrapper around the QCMD() macro of linux/quota.h that removes some undefined behaviour. A typical quota + * command such as QCMD(Q_GETQUOTA, USRQUOTA) cannot be resolved on platforms where "int" is 32bit, as it is + * larger than INT_MAX. Yikes, because that are basically all platforms Linux supports. Let's add a wrapper + * that explicitly takes its arguments as unsigned 32bit, and then converts the shift result explicitly to + * int, acknowledging the undefined behaviour of the kernel headers. This doesn't remove the undefined + * behaviour, but it stops ubsan from complaining about it. */ +static inline int QCMD_FIXED(uint32_t cmd, uint32_t type) { + return (int) QCMD(cmd, type); +} + +int quotactl_devnum(int cmd, dev_t devnum, int id, void *addr); +int quotactl_path(int cmd, const char *path, int id, void *addr); -- cgit v1.2.3