Date: Fri, 9 Jan 1998 00:54:13 -0600 (CST) From: Joel Ray Holveck <joelh@gnu.org> To: freebsd-hackers@FreeBSD.ORG Subject: Adding process ID listing to netstat Message-ID: <199801090654.AAA15353@detlev.UUCP>
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Would it be useful to others to allow netstat to give the process ID's
that are using sockets?
To give the basic idea, I have this implemented with the inet domain
sockets. A patch to -current netstat is enclosed. To use it, just
run netstat -P (or netstat -Pfinet or whatever you like).
If it seems useful, I'll extend this to work on other domains'
sockets, document it, and submit it for inclusion in -current.
DISCLAIMER:
I don't know anything about sockets and their internals. This means I
could very well be referencing stray pointers under all sorts of
bizarre conditions. This patch has been tested in at least two cases,
on the same computer, within five minutes of each other.
Best,
joelh
-------- cut here --------
*** inet.c.orig Fri Jan 9 00:07:37 1998
--- inet.c Fri Jan 9 00:37:11 1998
***************
*** 131,137 ****
putchar('\n');
if (Aflag)
printf("%-8.8s ", "PCB");
! printf(Aflag ?
"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
"Proto", "Recv-Q", "Send-Q",
--- 131,139 ----
putchar('\n');
if (Aflag)
printf("%-8.8s ", "PCB");
! if (Pflag)
! printf("%5.5s ", "pid");
! printf((Aflag || Pflag) ?
"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
"Proto", "Recv-Q", "Send-Q",
***************
*** 143,148 ****
--- 145,152 ----
printf("%8x ", (int)inpcb.inp_ppcb);
else
printf("%8x ", (int)next);
+ if (Pflag)
+ printf("%5d ", sockb.so_rcv.sb_sel.si_pid);
printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc,
sockb.so_snd.sb_cc);
if (nflag) {
***************
*** 481,487 ****
char line[80], *cp;
int width;
! sprintf(line, "%.*s.", (Aflag && !numeric) ? 12 : 16, inetname(in));
cp = index(line, '\0');
if (!numeric && port)
sp = getservbyport((int)port, proto);
--- 485,492 ----
char line[80], *cp;
int width;
! sprintf(line, "%.*s.", ((Pflag || Aflag) && !numeric) ? 12 : 16,
! inetname(in));
cp = index(line, '\0');
if (!numeric && port)
sp = getservbyport((int)port, proto);
***************
*** 489,495 ****
sprintf(cp, "%.15s", sp ? sp->s_name : "*");
else
sprintf(cp, "%d", ntohs((u_short)port));
! width = Aflag ? 18 : 22;
printf(" %-*.*s", width, width, line);
}
--- 494,500 ----
sprintf(cp, "%.15s", sp ? sp->s_name : "*");
else
sprintf(cp, "%d", ntohs((u_short)port));
! width = (Pflag || Aflag) ? 18 : 22;
printf(" %-*.*s", width, width, line);
}
*** main.c.orig Fri Jan 9 00:07:36 1998
--- main.c Fri Jan 9 00:30:14 1998
***************
*** 243,249 ****
af = AF_UNSPEC;
! while ((ch = getopt(argc, argv, "Aabdf:ghI:iM:mN:np:rstuw:")) != -1)
switch(ch) {
case 'A':
Aflag = 1;
--- 243,249 ----
af = AF_UNSPEC;
! while ((ch = getopt(argc, argv, "Aabdf:ghI:iM:mN:nPp:rstuw:")) != -1)
switch(ch) {
case 'A':
Aflag = 1;
***************
*** 305,310 ****
--- 305,313 ----
break;
case 'n':
nflag = 1;
+ break;
+ case 'P':
+ Pflag = 1;
break;
case 'p':
if ((tp = name2protox(optarg)) == NULL) {
*** netstat.h.orig Fri Jan 9 00:07:35 1998
--- netstat.h Fri Jan 9 00:24:40 1998
***************
*** 43,48 ****
--- 43,49 ----
int iflag; /* show interfaces */
int mflag; /* show memory stats */
int nflag; /* show addresses numerically */
+ int Pflag; /* show sockets' pid */
int pflag; /* show given protocol */
int rflag; /* show routing tables (or routing stats) */
int sflag; /* show protocol statistics */
-------- cut here --------
--
Joel Ray Holveck - joelh@gnu.org - http://www.wp.com/piquan
Fourth law of programming:
Anything that can go wrong wi
sendmail: segmentation violation - core dumped
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