Date: Sat, 13 Jun 1998 15:07:51 +1000 From: Bruce Evans <bde@zeta.org.au> To: phk@critter.freebsd.dk, rivers@dignus.com, zach@gaffaneys.com Cc: asami@FreeBSD.ORG, danny@panda.hilink.com.au, freebsd-bugs@FreeBSD.ORG Subject: Re: bin/6653 Message-ID: <199806130507.PAA12399@godzilla.zeta.org.au>
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>I wonder why the nifty trick of: > >rm -rf /var/run/. > >which used to clear a directory, quit working. Script started on Sat Jun 13 14:57:14 1998 ttyp0:bde@gamplex:/tmp> mkdir /tmp/foo /tmp/foo/foo ttyp0:bde@gamplex:/tmp> truss rm -rf /tmp/foo/. rm: syscall write(2,0xefbfd308,4) returns 4 (0x4) "." and ".." may not be removedsyscall write(2,0xefbfd31c,31) returns 31 (0x1f) syscall write(2,0xefbfd30c,1) returns 1 (0x1) syscall geteuid() returns 15 (0xf) syscall exit(0x1) process exit, rval = 256 ttyp0:bde@gamplex:/tmp> Script done on Sat Jun 13 14:57:39 1998 rm(1) is "smart" and doesn't trust rmdir(2). It is also stupid. It does a simple lexical check for "." and ".." at the end of the path, `rm -rf /tmp/foo/./' works like you want. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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