Re: [BUG] directory renaming/removal
I must say that I dont know what the standards say, but... On Fri, Feb 02, 2001 at 01:28:28PM +, David Howells wrote: > (1) Linux can't rename directories that are marked as read-only. This is > strange because the directories actually being modified _do_ have write > permission. Kernel cant change the ".." entry? > (2) You can _remove_ a read-only directory. Kernel dont need to change the ".." entry? -- marko - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
[BUG] directory renaming/removal
Run the following script (It's been tried on linux-2.2.x and linux-2.4.x):
#!/bin/sh
cd /tmp
mkdir x
cd x
mkdir x y z
strace -etrace=rename,mkdir,rmdir,chmod mv x z
echo -
chmod -w y
strace -etrace=rename,mkdir,rmdir,chmod mv y z
The output:
rename("x", "z/x") = 0
-
rename("y", "z/y") = -1 EACCES (Permission denied)
mkdir("z/y", 040755)= 0
chmod("z/y", 040555)= 0
rmdir("y") = 0
You'll notice the following:
(1) Linux can't rename directories that are marked as read-only. This is
strange because the directories actually being modified _do_ have write
permission.
(2) You can _remove_ a read-only directory.
David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Please read the FAQ at http://www.tux.org/lkml/
[BUG] directory renaming/removal
Run the following script (It's been tried on linux-2.2.x and linux-2.4.x):
#!/bin/sh
cd /tmp
mkdir x
cd x
mkdir x y z
strace -etrace=rename,mkdir,rmdir,chmod mv x z
echo -
chmod -w y
strace -etrace=rename,mkdir,rmdir,chmod mv y z
The output:
rename("x", "z/x") = 0
-
rename("y", "z/y") = -1 EACCES (Permission denied)
mkdir("z/y", 040755)= 0
chmod("z/y", 040555)= 0
rmdir("y") = 0
You'll notice the following:
(1) Linux can't rename directories that are marked as read-only. This is
strange because the directories actually being modified _do_ have write
permission.
(2) You can _remove_ a read-only directory.
David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Please read the FAQ at http://www.tux.org/lkml/
Re: [BUG] directory renaming/removal
I must say that I dont know what the standards say, but... On Fri, Feb 02, 2001 at 01:28:28PM +, David Howells wrote: (1) Linux can't rename directories that are marked as read-only. This is strange because the directories actually being modified _do_ have write permission. Kernel cant change the ".." entry? (2) You can _remove_ a read-only directory. Kernel dont need to change the ".." entry? -- marko - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
