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libct: fix mips compilation

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On MIPS arches, Rdev is uint32 so we have to convert it.

Fixes issue 4962.

Fixes: 8476df83 ("libct: add/use isDevNull, verifyDevNull")
Fixes: de87203e ("console: verify /dev/pts/ptmx before use")
Fixes: 398955bc ("console: add fallback for pre-TIOCGPTPEER kernels")
Reported-by: Tianon Gravi <admwiggin@gmail.com>
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin
2025-11-05 17:52:47 -08:00
parent 2f74f4ae1b
commit 1b954f1f06
2 changed files with 10 additions and 7 deletions
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libcontainer/rootfs_linux.go
+4 -3
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@@ -1044,10 +1044,10 @@ func mknodDevice(destDir *os.File, destName string, node *devices.Device) error
node.Type, node.Path,
stat.Mode&unix.S_IFMT, fileMode&unix.S_IFMT)
}
if stat.Rdev != dev {
if rdev := uint64(stat.Rdev); rdev != dev { //nolint:unconvert // Rdev is uint32 on MIPS.
return fmt.Errorf("new %c device inode %s has incorrect major:minor: %d:%d doesn't match expected %d:%d",
node.Type, node.Path,
unix.Major(stat.Rdev), unix.Minor(stat.Rdev),
unix.Major(rdev), unix.Minor(rdev),
unix.Major(dev), unix.Minor(dev))
}
return nil
@@ -1318,7 +1318,8 @@ func remountReadonly(m *configs.Mount) error {
}
func isDevNull(st *unix.Stat_t) bool {
return st.Mode&unix.S_IFMT == unix.S_IFCHR && st.Rdev == unix.Mkdev(1, 3)
//nolint:unconvert // Rdev is uint32 on MIPS.
return st.Mode&unix.S_IFMT == unix.S_IFCHR && uint64(st.Rdev) == unix.Mkdev(1, 3)
}
func verifyDevNull(f *os.File) error {