Re: [PATCH] samples: bpf: fix: error handling regarding kprobe_events

2018-11-22 Thread Daniel Borkmann
On 11/21/2018 05:07 PM, Daniel T. Lee wrote: > Currently, kprobe_events failure won't be handled properly. > Due to calling system() indirectly to write to kprobe_events, > it can't be identified whether an error is derived from kprobe or system. > > // buf = "echo '%c:%s %s' >>

[PATCH] samples: bpf: fix: error handling regarding kprobe_events

2018-11-21 Thread Daniel T. Lee
Currently, kprobe_events failure won't be handled properly. Due to calling system() indirectly to write to kprobe_events, it can't be identified whether an error is derived from kprobe or system. // buf = "echo '%c:%s %s' >> /s/k/d/t/kprobe_events" err = system(buf); if (err < 0) {