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.
> 

To be more specific, I guess, what I'm proposing is:

int execxveat(int flags, int dirfd, const char *filename,
	      char * const *argv, char * const *envp);

... with the -x- for the flags field; that can be dropped since it's 
already established that -at() variants can take additional flags.

	-hpa