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/* Print information about a task's ports
Copyright (C) 1996 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include <stddef.h>
#include <argp.h>
#include <error.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <mach.h>
#include <hurd.h>
#include <hurd/process.h>
static const struct argp_option options[] = {
{0,0,0,0,0, 1},
{"verbose", 'v', 0, 0, "Give more detailed information"},
{"members", 'm', 0, 0, "Show members of port-sets"},
{"hex-names", 'x', 0, 0, "Show port names in hexadecimal"},
{0,0,0,0, "Selecting which names to show:", 2},
{"receive", 'r', 0, 0, "Show ports with receive rights"},
{"send", 's', 0, 0, "Show ports with send rights"},
{"send-once", 'o', 0, 0, "Show ports with send once rights"},
{"dead-names",'d', 0, 0, "Show ports with dead name rights"},
{"port-sets", 'p', 0, 0, "Show port sets"},
{0}
};
static const char *args_doc = "PID [NAME...]";
static const char *doc =
"If no port NAMEs are given, all ports in process PID are reported. NAMEs"
" may be specified in hexadecimal or octal by using a 0x or 0 prefix.";
#define SHOW_DETAILS 0x1
#define SHOW_MEMBERS 0x4
#define SHOW_HEX_NAMES 0x8
/* Prints info in SHOW about NAME in TASK to stdout. If TYPE is non-zero, it
should be what mach_port_type returns for NAME. */
static error_t
port_info (mach_port_t name, mach_port_type_t type, task_t task, unsigned show)
{
int hex_names = (show & SHOW_HEX_NAMES);
int first = 1;
void comma ()
{
if (first)
first = 0;
else
printf (", ");
}
void prefs (mach_port_right_t right)
{
mach_port_urefs_t refs;
error_t err = mach_port_get_refs (task, name, right, &refs);
if (! err)
printf (" (refs: %u)", refs);
}
if (type == 0)
{
error_t err = mach_port_type (task, name, &type);
if (err)
return err;
}
printf (hex_names ? "%#6x: " : "%6d: ", name);
if (type & MACH_PORT_TYPE_RECEIVE)
{
comma ();
printf ("receive");
if (show & SHOW_DETAILS)
{
struct mach_port_status status;
error_t err = mach_port_get_receive_status (task, name, &status);
if (! err)
{
printf (" (");
if (status.mps_pset != MACH_PORT_NULL)
printf (hex_names ? "port-set: %#x, " : "port-set: %d, ",
status.mps_pset);
printf ("seqno: %u", status.mps_seqno);
if (status.mps_mscount)
printf (", ms-count: %u", status.mps_mscount);
if (status.mps_qlimit != MACH_PORT_QLIMIT_DEFAULT)
printf (", qlimit: %u", status.mps_qlimit);
if (status.mps_msgcount)
printf (", msgs: %u", status.mps_msgcount);
printf ("%s%s%s)",
status.mps_srights ? ", send-rights" : "",
status.mps_pdrequest ? ", pd-req" : "",
status.mps_nsrequest ? ", ns-req" : "");
}
}
}
if (type & MACH_PORT_TYPE_SEND)
{
comma ();
printf ("send");
if (show & SHOW_DETAILS)
prefs (MACH_PORT_RIGHT_SEND);
}
if (type & MACH_PORT_TYPE_SEND_ONCE)
{
comma ();
printf ("send-once");
}
if (type & MACH_PORT_TYPE_DEAD_NAME)
{
comma ();
printf ("dead-name");
if (show & SHOW_DETAILS)
prefs (MACH_PORT_RIGHT_DEAD_NAME);
}
if (type & MACH_PORT_TYPE_PORT_SET)
{
comma ();
printf ("port-set");
if (show & SHOW_DETAILS)
{
mach_port_t *members = 0;
mach_msg_type_number_t members_len = 0, i;
error_t err =
mach_port_get_set_status (task, name, &members, &members_len);
if (! err)
if (members_len == 0)
printf (" (empty)");
else
{
printf (hex_names ? " (%#x" : " (%u", members[0]);
for (i = 1; i < members_len; i++)
printf (hex_names ? ", %#x" : ", %u", members[i]);
printf (")");
vm_deallocate (mach_task_self (), (vm_address_t)members,
members_len * sizeof *members);
}
}
}
putchar ('\n');
return 0;
}
/* Prints info about every port in TASK with TYPES to stdout. */
static error_t
ports_info (task_t task, mach_port_type_t only, unsigned show)
{
mach_port_t *names = 0;
mach_port_type_t *types = 0;
mach_msg_type_number_t names_len = 0, types_len = 0, i;
error_t err = mach_port_names (task, &names, &names_len, &types, &types_len);
if (err)
return err;
for (i = 0; i < names_len; i++)
if (types[i] & only)
port_info (names[i], types[i], task, show);
vm_deallocate (mach_task_self (),
(vm_address_t)names, names_len * sizeof *names);
vm_deallocate (mach_task_self (),
(vm_address_t)types, types_len * sizeof *types);
return 0;
}
int
main (int argc, char **argv)
{
error_t err;
task_t task;
unsigned show = 0; /* what info we print */
mach_port_type_t only = 0; /* Which names to show */
/* Parse our options... */
error_t parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case 'v': show |= SHOW_DETAILS; break;
case 'm': show |= SHOW_MEMBERS; break;
case 'x': show |= SHOW_HEX_NAMES; break;
case 'r': only |= MACH_PORT_TYPE_RECEIVE; break;
case 's': only |= MACH_PORT_TYPE_SEND; break;
case 'o': only |= MACH_PORT_TYPE_SEND_ONCE; break;
case 'd': only |= MACH_PORT_TYPE_DEAD_NAME; break;
case 'p': only |= MACH_PORT_TYPE_PORT_SET; break;
case ARGP_KEY_NO_ARGS:
argp_error (state->argp, "No process specified");
case ARGP_KEY_ARG:
if (state->arg_num == 0)
/* The task */
{
pid_t pid = atoi (arg);
if (! pid)
error (10, 0, "%s: Invalid PID", arg);
err = proc_pid2task (getproc (), pid, &task);
if (err)
error (11, err, "%s", arg);
if (only == 0)
only = ~0;
if (state->next == state->argc)
/* No port names specified, print all of them. */
{
err = ports_info (task, only, show);
if (err)
error (12, err, "%s", arg);
}
break;
}
/* A port name */
{
char *end;
unsigned long name = strtoul (arg, &end, 0);
if (name == 0)
error (0, 0, "%s: Invalid port name", arg);
else
{
err = port_info (name, 0, task, show);
if (err)
error (0, err, "%s", arg);
}
}
break;
default: return EINVAL;
}
return 0;
}
const struct argp argp = { options, parse_opt, args_doc, doc };
/* Parse our arguments. */
argp_parse (&argp, argc, argv, 0, 0);
exit (0);
}
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