Re: [PATCH -mm 0/7] execns syscall and user namespace

["H. Peter Anvin" <hpa@zytor.com>]

Cedric Le Goater wrote:
> 
> How's that ?
> 
> int execvef(int flags, const char *filename, char *const argv [], char
> *const envp[]);
> 
> initially, flags would be :
> 
> #define EXECVEF_NEWNS	0x00000100
> #define EXECVEF_NEWIPC	0x00000200
> #define EXECVEF_NEWUTS	0x00000400
> #define EXECVEF_NEWUSER	0x00000800
> 
> execvef() would behave like execve() if flags == 0 and would return EINVAL
> if flags is invalid. unshare of a namespace can fail and usually returns
> ENOMEM.
> 

If flags comes first, I would rather like to call it execfve(), or 
perhaps execxve() ("extended") or execove() ("options").  execfve() 
sounds like it executes a file descriptor (which would probably be 
called fexecve()).

Perhaps more seriously, if we're adding more functionality already, it 
should acquire -at functionality (execveat) and take a directory argument.

	-hpa