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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/quota-util.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/shared/quota-util.h | 19 |
1 files changed, 19 insertions, 0 deletions
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 <inttypes.h> +#include <sys/quota.h> +#include <sys/types.h> + +/* 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); |