On Fri, Sep 21, 2007 at 04:39:49PM +0200, Christoph Egger wrote:

quoted text
> Which form is better (a) or b))?

>

> a)

>

> char slave[80];

> ...

>

> if (openpty(&masterfd, &slavefd, slave, NULL, NULL) < 0)

char slave[PATH_MAX] ?
I think it's a reasonable assumption that no library function

will return (on any system out there) a path longer than PATH_MAX.
> if (openpty(&masterfd, &slavefd, NULL, NULL, NULL) < 0)

quoted text
>  ...

>

> slave = ptsname(masterfd);

'ttyname(slavefd)' will do.