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a352e4ad | 1 | /* |
a352e4ad | 2 | * Copyright (c) 1993 Jan-Simon Pendry |
1611db1e KB |
3 | * Copyright (c) 1993 |
4 | * The Regents of the University of California. All rights reserved. | |
a352e4ad JSP |
5 | * |
6 | * This code is derived from software contributed to Berkeley by | |
7 | * Jan-Simon Pendry. | |
8 | * | |
9 | * %sccs.include.redist.c% | |
10 | * | |
1611db1e | 11 | * @(#)procfs_status.c 8.2 (Berkeley) %G% |
a352e4ad JSP |
12 | * |
13 | * From: | |
14 | * $Id: procfs_status.c,v 3.1 1993/12/15 09:40:17 jsp Exp $ | |
15 | */ | |
16 | ||
17 | #include <sys/param.h> | |
18 | #include <sys/systm.h> | |
19 | #include <sys/time.h> | |
20 | #include <sys/kernel.h> | |
21 | #include <sys/proc.h> | |
22 | #include <sys/vnode.h> | |
23 | #include <sys/ioctl.h> | |
24 | #include <sys/tty.h> | |
25 | #include <sys/resource.h> | |
26 | #include <sys/resourcevar.h> | |
27 | #include <miscfs/procfs/procfs.h> | |
28 | ||
29 | int | |
30 | procfs_dostatus(curp, p, pfs, uio) | |
31 | struct proc *curp; | |
32 | struct proc *p; | |
33 | struct pfsnode *pfs; | |
34 | struct uio *uio; | |
35 | { | |
36 | struct session *sess; | |
37 | struct tty *tp; | |
38 | struct ucred *cr; | |
39 | char *ps; | |
40 | char *sep; | |
41 | int pid, ppid, pgid, sid; | |
42 | int i; | |
43 | int xlen; | |
44 | int error; | |
45 | char psbuf[256]; /* XXX - conservative */ | |
46 | ||
47 | if (uio->uio_rw != UIO_READ) | |
48 | return (EOPNOTSUPP); | |
49 | ||
50 | pid = p->p_pid; | |
51 | ppid = p->p_pptr ? p->p_pptr->p_pid : 0, | |
52 | pgid = p->p_pgrp->pg_id; | |
53 | sess = p->p_pgrp->pg_session; | |
54 | sid = sess->s_leader ? sess->s_leader->p_pid : 0; | |
55 | ||
56 | /* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg uid groups ... */ | |
57 | ||
58 | ps = psbuf; | |
59 | bcopy(p->p_comm, ps, MAXCOMLEN); | |
60 | ps[MAXCOMLEN] = '\0'; | |
61 | ps += strlen(ps); | |
62 | ps += sprintf(ps, " %d %d %d %d ", pid, ppid, pgid, sid); | |
63 | ||
64 | if ((p->p_flag&P_CONTROLT) && (tp = sess->s_ttyp)) | |
65 | ps += sprintf(ps, "%d,%d ", major(tp->t_dev), minor(tp->t_dev)); | |
66 | else | |
67 | ps += sprintf(ps, "%d,%d ", -1, -1); | |
68 | ||
69 | sep = ""; | |
70 | if (sess->s_ttyvp) { | |
71 | ps += sprintf(ps, "%sctty", sep); | |
72 | sep = ","; | |
73 | } | |
74 | if (SESS_LEADER(p)) { | |
75 | ps += sprintf(ps, "%ssldr", sep); | |
76 | sep = ","; | |
77 | } | |
78 | if (*sep != ',') | |
79 | ps += sprintf(ps, "noflags"); | |
80 | ||
81 | if (p->p_flag & P_INMEM) | |
82 | ps += sprintf(ps, " %d %d", | |
83 | p->p_stats->p_start.tv_sec, | |
84 | p->p_stats->p_start.tv_usec); | |
85 | else | |
86 | ps += sprintf(ps, " -1 -1"); | |
87 | ||
88 | { | |
89 | struct timeval ut, st; | |
90 | ||
91 | calcru(p, &ut, &st, (void *) 0); | |
92 | ps += sprintf(ps, " %d %d %d %d", | |
93 | ut.tv_sec, | |
94 | ut.tv_usec, | |
95 | st.tv_sec, | |
96 | st.tv_usec); | |
97 | } | |
98 | ||
99 | ps += sprintf(ps, " %s", | |
100 | (p->p_wchan && p->p_wmesg) ? p->p_wmesg : "nochan"); | |
101 | ||
102 | cr = p->p_ucred; | |
103 | ||
104 | ps += sprintf(ps, " %d %d", cr->cr_uid, cr->cr_gid); | |
105 | for (i = 0; i < cr->cr_ngroups; i++) | |
106 | ps += sprintf(ps, " %d", cr->cr_groups[i]); | |
107 | ps += sprintf(ps, "\n"); | |
108 | ||
109 | xlen = ps - psbuf; | |
110 | xlen -= uio->uio_offset; | |
111 | ps = psbuf + uio->uio_offset; | |
112 | xlen = min(xlen, uio->uio_resid); | |
113 | if (xlen <= 0) | |
114 | error = 0; | |
115 | else | |
116 | error = uiomove(ps, xlen, uio); | |
117 | ||
118 | return (error); | |
119 | } |