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systat: clean up code assuming network classes

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Similar to netstat, clean up code that uses inet_lnaof() to check for
binding to "host 0" (lowest host on network) as a "network" bind.
Such things don't happen, and current networks are seldom if ever
found in /etc/networks.

MFC after:	1 month
Reviewers:	tuexen
Differential Revision: https://reviews.freebsd.org/D32720
This commit is contained in:
Mike Karels 2021-10-28 18:39:43 -05:00
parent 64acb29b7d
commit a2e7dfca86
1 changed files with 5 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
usr.bin/systat/netstat.c
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@ -206,7 +206,7 @@ again:
next = &inpcb;
if (!aflag) {
if (inpcb.inp_vflag & INP_IPV4) {
if (inet_lnaof(inpcb.inp_laddr) == INADDR_ANY)
if (inpcb.inp_laddr.s_addr == INADDR_ANY)
continue;
}
#ifdef INET6
@ -303,8 +303,7 @@ fetchnetstat_sysctl(void)
if (!aflag) {
if (xip->inp_vflag & INP_IPV4) {
if (inet_lnaof(xip->inp_laddr) ==
INADDR_ANY)
if (xip->inp_laddr.s_addr == INADDR_ANY)
continue;
}
#ifdef INET6
@ -584,7 +583,6 @@ inetname(struct sockaddr *sa)
char *cp = 0;
static char line[NI_MAXHOST];
struct hostent *hp;
struct netent *np;
struct in_addr in;
#ifdef INET6
@ -601,19 +599,9 @@ inetname(struct sockaddr *sa)
in = ((struct sockaddr_in *)sa)->sin_addr;
if (!nflag && in.s_addr != INADDR_ANY) {
int net = inet_netof(in);
int lna = inet_lnaof(in);
if (lna == INADDR_ANY) {
np = getnetbyaddr(net, AF_INET);
if (np)
cp = np->n_name;
}
if (cp == NULL) {
hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
if (hp)
cp = hp->h_name;
}
hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
if (hp)
cp = hp->h_name;
}
if (in.s_addr == INADDR_ANY)
strcpy(line, "*");