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namespace-util: use inode_same_at() instead of FORMAT_PROC_FD_PATH()

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Doesn't matter much, but this makes it leas magic and independent of
/proc/ mounts. (Well, it actually doesn't, since the right-hand path is
also in /proc/, but still...
This commit is contained in:
Lennart Poettering 2023-05-19 14:50:15 +02:00
parent 563e684689
commit 3530fd8913
1 changed files with 1 additions and 1 deletions
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2
src/basic/namespace-util.c
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@ -109,7 +109,7 @@ int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int
/* Can't setns to your own userns, since then you could escalate from non-root to root in
* your own namespace, so check if namespaces are equal before attempting to enter. */
r = inode_same(FORMAT_PROC_FD_PATH(userns_fd), "/proc/self/ns/user", 0);
r = inode_same_at(userns_fd, "", AT_FDCWD, "/proc/self/ns/user", AT_EMPTY_PATH);
if (r < 0)
return r;
if (r)