d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

linux: support AT_EMPTY_PATH flag in fchownat(2)

Browse Source 
This fixes rsyslog package installation scripts in Bionic.

Reviewed By:	kib
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29108
This commit is contained in:
Edward Tomasz Napierala 2021-04-16 16:26:43 +01:00
parent 4b45c2bb83
commit e47823b831
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/compat/linux/linux_file.c
View File

@ -1740,12 +1740,17 @@ linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
char *path;
int error, dfd, flag;
if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
if (args->flag & ~(LINUX_AT_SYMLINK_NOFOLLOW | LINUX_AT_EMPTY_PATH)) {
linux_msg(td, "fchownat unsupported flag 0x%x", args->flag);
return (EINVAL);
}
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
AT_SYMLINK_NOFOLLOW;
flag |= (args->flag & LINUX_AT_EMPTY_PATH) == 0 ? 0 :
AT_EMPTY_PATH;
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
if (!LUSECONVPATH(td)) {
return (kern_fchownat(td, dfd, args->filename, UIO_USERSPACE,
args->uid, args->gid, flag));