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9p: darwin: Compatibility for f/l*xattr 

On darwin `fgetxattr` takes two extra optional arguments,
and the l* variants are not defined (in favor of an extra
flag to the regular variants.

Signed-off-by: Keno Fischer <keno@juliacomputing.com>
[Michael Roitzsch: - Rebase for NixOS]
Signed-off-by: Michael Roitzsch <reactorcontrol@icloud.com>
Signed-off-by: Will Cohen <wwcohen@gmail.com>
Message-Id: <20220227223522.91937-9-wwcohen@gmail.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Acked-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
master
Keno Fischer 2022-02-27 17:35:19 -05:00 committed by Christian Schoenebeck
parent 57b3910bc3
commit b5989326f5
2 changed files with 25 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
hw/9pfs/9p-local.c
View File

@ -790,16 +790,20 @@ static int local_fstat(FsContext *fs_ctx, int fid_type,
mode_t tmp_mode;
dev_t tmp_dev;
if (fgetxattr(fd, "user.virtfs.uid", &tmp_uid, sizeof(uid_t)) > 0) {
if (qemu_fgetxattr(fd, "user.virtfs.uid",
&tmp_uid, sizeof(uid_t)) > 0) {
stbuf->st_uid = le32_to_cpu(tmp_uid);
}
if (fgetxattr(fd, "user.virtfs.gid", &tmp_gid, sizeof(gid_t)) > 0) {
if (qemu_fgetxattr(fd, "user.virtfs.gid",
&tmp_gid, sizeof(gid_t)) > 0) {
stbuf->st_gid = le32_to_cpu(tmp_gid);
}
if (fgetxattr(fd, "user.virtfs.mode", &tmp_mode, sizeof(mode_t)) > 0) {
if (qemu_fgetxattr(fd, "user.virtfs.mode",
&tmp_mode, sizeof(mode_t)) > 0) {
stbuf->st_mode = le32_to_cpu(tmp_mode);
}
if (fgetxattr(fd, "user.virtfs.rdev", &tmp_dev, sizeof(dev_t)) > 0) {
if (qemu_fgetxattr(fd, "user.virtfs.rdev",
&tmp_dev, sizeof(dev_t)) > 0) {
stbuf->st_rdev = le64_to_cpu(tmp_dev);
}
} else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {

17
hw/9pfs/9p-util.h
View File

@ -19,6 +19,23 @@
#define O_PATH_9P_UTIL 0
#endif
#ifdef CONFIG_DARWIN
#define qemu_fgetxattr(...) fgetxattr(__VA_ARGS__, 0, 0)
#define qemu_lgetxattr(...) getxattr(__VA_ARGS__, 0, XATTR_NOFOLLOW)
#define qemu_llistxattr(...) listxattr(__VA_ARGS__, XATTR_NOFOLLOW)
#define qemu_lremovexattr(...) removexattr(__VA_ARGS__, XATTR_NOFOLLOW)
static inline int qemu_lsetxattr(const char *path, const char *name,
const void *value, size_t size, int flags) {
return setxattr(path, name, value, size, 0, flags | XATTR_NOFOLLOW);
}
#else
#define qemu_fgetxattr fgetxattr
#define qemu_lgetxattr lgetxattr
#define qemu_llistxattr llistxattr
#define qemu_lremovexattr lremovexattr
#define qemu_lsetxattr lsetxattr
#endif
static inline void close_preserve_errno(int fd)
{
int serrno = errno;