On Sat, 26 Nov 2022, Alexey Dobriyan wrote:
>/proc never escaped "comm" field of /proc/*/stat.
Yes, that’s precisely the bug.
>To parse /proc/*/stat reliably, search for '(' from the beginning, then
>for ')' backwards. Everything in between parenthesis is "comm".
That’s not guaranteed to stay reliable: fields can be, and have
been in the past, added, and new %s fields will break this. Do
not rely on it either.
>Everything else are numbers separated by spaces.
Currently, yes.
But the field is *clearly* documented as intended to be
parsable by scanf(3), which splits on white space. So the
Linux kernel MUST encode embedded whitespace so the
documented(!) access method works.
bye,
//mirabilos
--
15:41⎜<Lo-lan-do:#fusionforge> Somebody write a testsuite for helloworld :-)
