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Date: Tue, 20 Feb 2018 09:34:15 -0700 From: David Ahern <dsahern@...il.com> To: Sabrina Dubroca <sd@...asysnail.net>, netdev@...r.kernel.org Cc: sbrivio@...hat.com, serhe.popovych@...il.com Subject: Re: [PATCH iproute2-next v2] ip link: add support to display extended tun attributes On 2/20/18 5:43 AM, Sabrina Dubroca wrote: > Signed-off-by: Sabrina Dubroca <sd@...asysnail.net> > Reviewed-by: Stefano Brivio <sbrivio@...hat.com> > --- > v2: define print_onoff to print flags, fix checkpatch warnings, drop > header changes > > ip/iptuntap.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 86 insertions(+) applied to iproute2-next. > > diff --git a/ip/iptuntap.c b/ip/iptuntap.c > index 4628db2832b4..07253870472f 100644 > --- a/ip/iptuntap.c > +++ b/ip/iptuntap.c > @@ -469,3 +469,89 @@ int do_iptuntap(int argc, char **argv) > *argv); > exit(-1); > } > + > +static void print_owner(FILE *f, uid_t uid) > +{ > + struct passwd *pw = getpwuid(uid); > + > + if (pw) > + fprintf(f, "user %s ", pw->pw_name); > + else > + fprintf(f, "user %u ", uid); > +} > + > +static void print_group(FILE *f, gid_t gid) > +{ > + struct group *group = getgrgid(gid); > + > + if (group) > + fprintf(f, "group %s ", group->gr_name); > + else > + fprintf(f, "group %u ", gid); > +} > + Those helpers can be re-used to make 'ip tuntap show' better too.
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