[PATCH] pstree: New applet, v2

[Lauri Kasanen]

Hi

> +		sprintf(path, "%s/%d", PROC_BASE, pid);
> +		xstat(path, &st);
> What happens here if program with PID == pid  exits before we do xstat,
> seems to me the program run is interrupted (maybe better goto free(path)
> or  fclose(file) and ignore ? )

Upstream pstree also exits here if it can't stat, I'm not sure if 
bb should deviate.

> Hi,
> just my 0,2 cents.
>
> Ciao,
> Tito

Appreciated.

v3:

- bb_error_msg_and_die
- get_terminal_width_height
- atoi > xatoi

- Lauri


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