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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* $NetBSD: procfs_status.c,v 1.9 1994/06/29 06:34:56 cgd Exp $ */
23:
24: /*
25: * Copyright (c) 1993 Jan-Simon Pendry
26: * Copyright (c) 1993
27: * The Regents of the University of California. All rights reserved.
28: *
29: * This code is derived from software contributed to Berkeley by
30: * Jan-Simon Pendry.
31: *
32: * Redistribution and use in source and binary forms, with or without
33: * modification, are permitted provided that the following conditions
34: * are met:
35: * 1. Redistributions of source code must retain the above copyright
36: * notice, this list of conditions and the following disclaimer.
37: * 2. Redistributions in binary form must reproduce the above copyright
38: * notice, this list of conditions and the following disclaimer in the
39: * documentation and/or other materials provided with the distribution.
40: * 3. All advertising materials mentioning features or use of this software
41: * must display the following acknowledgement:
42: * This product includes software developed by the University of
43: * California, Berkeley and its contributors.
44: * 4. Neither the name of the University nor the names of its contributors
45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
60: * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
61: */
62:
63: #include <sys/param.h>
64: #include <sys/systm.h>
65: #include <sys/time.h>
66: #include <sys/kernel.h>
67: #include <sys/proc.h>
68: #include <sys/vnode.h>
69: #include <sys/ioctl.h>
70: #include <sys/tty.h>
71: #include <sys/resource.h>
72: #include <sys/resourcevar.h>
73: #include <miscfs/procfs/procfs.h>
74:
75: int
76: procfs_dostatus(curp, p, pfs, uio)
77: struct proc *curp;
78: struct proc *p;
79: struct pfsnode *pfs;
80: struct uio *uio;
81: {
82: struct session *sess;
83: struct tty *tp;
84: struct ucred *cr;
85: char *ps;
86: char *sep;
87: int pid, ppid, pgid, sid;
88: int i;
89: int xlen;
90: int error;
91: char psbuf[256]; /* XXX - conservative */
92:
93: if (uio->uio_rw != UIO_READ)
94: return (EOPNOTSUPP);
95:
96: pid = p->p_pid;
97: ppid = p->p_pptr ? p->p_pptr->p_pid : 0,
98: pgid = p->p_pgrp->pg_id;
99: sess = p->p_pgrp->pg_session;
100: sid = sess->s_leader ? sess->s_leader->p_pid : 0;
101:
102: /* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg uid groups ... */
103:
104: ps = psbuf;
105: bcopy(p->p_comm, ps, MAXCOMLEN);
106: ps[MAXCOMLEN] = '\0';
107: ps += strlen(ps);
108: ps += sprintf(ps, " %d %d %d %d ", pid, ppid, pgid, sid);
109:
110: if ((p->p_flag&P_CONTROLT) && (tp = sess->s_ttyp))
111: ps += sprintf(ps, "%d,%d ", major(tp->t_dev), minor(tp->t_dev));
112: else
113: ps += sprintf(ps, "%d,%d ", -1, -1);
114:
115: sep = "";
116: if (sess->s_ttyvp) {
117: ps += sprintf(ps, "%sctty", sep);
118: sep = ",";
119: }
120: if (SESS_LEADER(p)) {
121: ps += sprintf(ps, "%ssldr", sep);
122: sep = ",";
123: }
124: if (*sep != ',')
125: ps += sprintf(ps, "noflags");
126:
127: if (p->p_flag & P_INMEM)
128: ps += sprintf(ps, " %d,%d",
129: p->p_stats->p_start.tv_sec,
130: p->p_stats->p_start.tv_usec);
131: else
132: ps += sprintf(ps, " -1,-1");
133:
134: {
135: struct timeval ut, st;
136:
137: calcru(p, &ut, &st, (void *) 0);
138: ps += sprintf(ps, " %d,%d %d,%d",
139: ut.tv_sec,
140: ut.tv_usec,
141: st.tv_sec,
142: st.tv_usec);
143: }
144:
145: ps += sprintf(ps, " %s",
146: (p->p_wchan && p->p_wmesg) ? p->p_wmesg : "nochan");
147:
148: cr = p->p_ucred;
149:
150: ps += sprintf(ps, " %d", cr->cr_uid);
151: for (i = 0; i < cr->cr_ngroups; i++)
152: ps += sprintf(ps, ",%d", cr->cr_groups[i]);
153: ps += sprintf(ps, "\n");
154:
155: xlen = ps - psbuf;
156: xlen -= uio->uio_offset;
157: ps = psbuf + uio->uio_offset;
158: xlen = imin(xlen, uio->uio_resid);
159: if (xlen <= 0)
160: error = 0;
161: else
162: error = uiomove(ps, xlen, uio);
163:
164: return (error);
165: }
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