Hello, > So that's the problem with SUID scripts. Seems to me it could be solved by > *not* closing the script file, just keep it open. Why can't that be done?
Because the first open is done by the kernel but the second by the shell. > It can't be possible, or someone would surely have fixed it a long time ago? Well, you'd have to change the semantics of #! Currently, if the file "xyzzy" starts with the line "#!plugh", this executes "plugh" with the argument "xyzzy". It's up to plugh to decide whether xyzzy is a file to open, or something else, like a command-line switch[1]. The new semantics would probably invoke "plugh" with the argument "/dev/fd/3", and have "xyzzy" open on filehandle 3. Jiri <[EMAIL PROTECTED]> [1] yes, you can have a file called "-l" containing "#!/bin/ls" and, if your PATH contains ".", it'll do exactly you'd expect...
