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netstat: display c and C flags properly

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Restructure c and C flag checks for string length to
work properly. Quickly bypass for non TCP protos too.

Reviewed By:		tuexen
Sponsored by:		NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D40480
This commit is contained in:
Richard Scheffenegger 2023-06-09 23:57:00 +02:00
parent af9ce4e9bb
commit 8e7c2e14cf
1 changed files with 6 additions and 9 deletions
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15
usr.bin/netstat/inet.c
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@ -237,23 +237,20 @@ protopr(u_long off, const char *name, int af1, int proto)
if (!pcblist_sysctl(proto, name, &buf))
return;
if (cflag || Cflag) {
if (istcp && (cflag || Cflag)) {
fnamelen = strlen("Stack");
cnamelen = strlen("CC");
oxig = xig = (struct xinpgen *)buf;
for (xig = (struct xinpgen*)((char *)xig + xig->xig_len);
xig->xig_len > sizeof(struct xinpgen);
xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
if (istcp) {
tp = (struct xtcpcb *)xig;
inp = &tp->xt_inp;
} else {
continue;
}
if (so->xso_protocol != proto)
continue;
tp = (struct xtcpcb *)xig;
inp = &tp->xt_inp;
if (inp->inp_gencnt > oxig->xig_gen)
continue;
so = &inp->xi_socket;
if (so->xso_protocol != proto)
continue;
fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
}