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Use err(3). Add usage() and prototypes.

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Hide reference to trsp(8) that does not exist.
This commit is contained in:
Philippe Charnier 1997-10-22 06:23:12 +00:00
parent 06457d2f32
commit 9cc5d92294
2 changed files with 56 additions and 53 deletions
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15
usr.sbin/trpt/trpt.8
View File

@ -59,7 +59,7 @@ when a socket is marked for
.Xr setsockopt 2 ) ,
and prints a readable description of these records.
When no options are supplied,
.Nm trpt
.Nm
prints all the trace records found in the system
grouped according to
.Tn TCP
@ -68,7 +68,7 @@ block
.Pq Tn PCB .
The following options may be used to
alter this behavior.
.Bl -tag -width Ds
.Bl -tag -width indent
.It Fl a
In addition to the normal output,
print the values of the source and destination
@ -88,13 +88,13 @@ In addition to the normal output,
print a detailed description of the packet
sequencing information.
.It Fl t
in addition to the normal output,
In addition to the normal output,
print the values for all timers at each
point in the trace.
.El
.Pp
The recommended use of
.Nm trpt
.Nm
is as follows.
Isolate the problem and enable debugging on the
socket(s) involved in the connection.
@ -104,7 +104,7 @@ associated with the sockets using the
option to
.Xr netstat 1 .
Then run
.Nm trpt
.Nm
with the
.Fl p
option, supplying the associated
@ -129,8 +129,9 @@ arguments may be used to supplant the defaults.
.El
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr setsockopt 2 ,
.Xr trsp 8
.Xr setsockopt 2
.\".Xr setsockopt 2 ,
.\".Xr trsp 8
.Sh DIAGNOSTICS
.Bl -tag -width Ds
.It Sy no namelist

94
usr.sbin/trpt/trpt.c
View File

@ -32,13 +32,17 @@
*/
#ifndef lint
static char copyright[] =
static const char copyright[] =
"@(#) Copyright (c) 1983, 1988, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)trpt.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <sys/param.h>
@ -70,10 +74,12 @@ static char sccsid[] = "@(#)trpt.c 8.1 (Berkeley) 6/6/93";
#include <arpa/inet.h>
#include <stdio.h>
#include <errno.h>
#include <err.h>
#include <nlist.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
struct nlist nl[] = {
#define N_TCP_DEBUG 0
@ -87,15 +93,20 @@ static caddr_t tcp_pcbs[TCP_NDEBUG];
static n_time ntime;
static int aflag, kflag, memf, follow, sflag, tflag;
void dotrace __P((caddr_t));
void klseek __P((int, off_t, int));
int numeric __P((caddr_t *, caddr_t *));
void tcp_trace __P((short, short, struct tcpcb *, struct tcpcb *,
struct tcpiphdr *, int));
static void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int optind;
int ch, i, jflag, npcbs, numeric();
char *system, *core, *malloc();
off_t lseek();
int ch, i, jflag, npcbs;
char *system, *core;
jflag = npcbs = 0;
while ((ch = getopt(argc, argv, "afjp:st")) != -1)
@ -111,11 +122,8 @@ main(argc, argv)
++jflag;
break;
case 'p':
if (npcbs >= TCP_NDEBUG) {
fputs("trpt: too many pcb's specified\n",
stderr);
exit(1);
}
if (npcbs >= TCP_NDEBUG)
errx(1, "too many pcb's specified");
(void)sscanf(optarg, "%x", (int *)&tcp_pcbs[npcbs++]);
break;
case 's':
@ -126,9 +134,7 @@ main(argc, argv)
break;
case '?':
default:
(void)fprintf(stderr,
"usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
exit(1);
usage();
}
argc -= optind;
argv += optind;
@ -151,30 +157,20 @@ main(argc, argv)
else
system = (char *)getbootfile();
if (nlist(system, nl) < 0 || !nl[0].n_value) {
fprintf(stderr, "trpt: %s: no namelist\n", system);
exit(1);
}
if ((memf = open(core, O_RDONLY)) < 0) {
perror(core);
exit(2);
}
if (kflag) {
fputs("trpt: can't do core files yet\n", stderr);
exit(1);
}
if (nlist(system, nl) < 0 || !nl[0].n_value)
errx(1, "%s: no namelist", system);
if ((memf = open(core, O_RDONLY)) < 0)
err(2, "%s", core);
if (kflag)
errx(1, "can't do core files yet");
(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
sizeof(tcp_debx)) {
perror("trpt: tcp_debx");
exit(3);
}
sizeof(tcp_debx))
err(3, "tcp_debx");
(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
sizeof(tcp_debug)) {
perror("trpt: tcp_debug");
exit(3);
}
sizeof(tcp_debug))
err(3, "tcp_debug");
/*
* If no control blocks have been specified, figure
* out how many distinct one we have and summarize
@ -214,6 +210,15 @@ main(argc, argv)
exit(0);
}
static void
usage()
{
(void)fprintf(stderr,
"usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
exit(1);
}
void
dotrace(tcpcb)
register caddr_t tcpcb;
{
@ -249,17 +254,13 @@ done: if (follow) {
sleep(1);
(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
sizeof(tcp_debx)) {
perror("trpt: tcp_debx");
exit(3);
}
sizeof(tcp_debx))
err(3, "tcp_debx");
} while (tcp_debx == prev_debx);
(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
sizeof(tcp_debug)) {
perror("trpt: tcp_debug");
exit(3);
}
sizeof(tcp_debug))
err(3, "tcp_debug");
goto again;
}
}
@ -268,6 +269,7 @@ done: if (follow) {
* Tcp debug routines
*/
/*ARGSUSED*/
void
tcp_trace(act, ostate, atp, tp, ti, req)
short act, ostate;
struct tcpcb *atp, *tp;
@ -362,17 +364,17 @@ tcp_trace(act, ostate, atp, tp, ti, req)
}
}
int
numeric(c1, c2)
caddr_t *c1, *c2;
{
return(*c1 - *c2);
}
void
klseek(fd, base, off)
int fd, off;
off_t base;
{
off_t lseek();
(void)lseek(fd, base, off);
}