procfs_status.c revision 1.25
1 /* $NetBSD: procfs_status.c,v 1.25 2005/05/29 21:55:34 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 35 */ 36 37 /* 38 * Copyright (c) 1993 Jan-Simon Pendry 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Jan-Simon Pendry. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: procfs_status.c,v 1.25 2005/05/29 21:55:34 christos Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/time.h> 80 #include <sys/kernel.h> 81 #include <sys/proc.h> 82 #include <sys/vnode.h> 83 #include <sys/ioctl.h> 84 #include <sys/tty.h> 85 #include <sys/resource.h> 86 #include <sys/resourcevar.h> 87 #include <miscfs/procfs/procfs.h> 88 89 int 90 procfs_dostatus(curp, l, pfs, uio) 91 struct proc *curp; 92 struct lwp *l; 93 struct pfsnode *pfs; 94 struct uio *uio; 95 { 96 struct session *sess; 97 struct tty *tp; 98 struct ucred *cr; 99 struct proc *p = l->l_proc; 100 char *ps; 101 const char *sep; 102 int pid, ppid, pgid, sid; 103 u_int i; 104 char psbuf[256+MAXHOSTNAMELEN]; /* XXX - conservative */ 105 106 if (uio->uio_rw != UIO_READ) 107 return (EOPNOTSUPP); 108 109 pid = p->p_pid; 110 ppid = p->p_pptr ? p->p_pptr->p_pid : 0, 111 pgid = p->p_pgrp->pg_id; 112 sess = p->p_pgrp->pg_session; 113 sid = sess->s_sid; 114 115 /* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg uid gid groups ... */ 116 117 ps = psbuf; 118 memcpy(ps, p->p_comm, MAXCOMLEN); 119 ps[MAXCOMLEN] = '\0'; 120 ps += strlen(ps); 121 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d %d %d %d ", 122 pid, ppid, pgid, sid); 123 124 if ((p->p_flag&P_CONTROLT) && (tp = sess->s_ttyp)) 125 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d,%d ", 126 major(tp->t_dev), minor(tp->t_dev)); 127 else 128 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d,%d ", 129 -1, -1); 130 131 sep = ""; 132 if (sess->s_ttyvp) { 133 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%sctty", sep); 134 sep = ","; 135 } 136 if (SESS_LEADER(p)) { 137 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%ssldr", sep); 138 sep = ","; 139 } 140 if (*sep != ',') 141 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "noflags"); 142 143 if (l->l_flag & L_INMEM) 144 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %ld,%ld", 145 p->p_stats->p_start.tv_sec, p->p_stats->p_start.tv_usec); 146 else 147 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " -1,-1"); 148 149 { 150 struct timeval ut, st; 151 152 calcru(p, &ut, &st, (void *) 0); 153 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), 154 " %ld,%ld %ld,%ld", ut.tv_sec, ut.tv_usec, st.tv_sec, 155 st.tv_usec); 156 } 157 158 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %s", 159 (l->l_wchan && l->l_wmesg) ? l->l_wmesg : "nochan"); 160 161 cr = p->p_ucred; 162 163 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", cr->cr_uid); 164 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", cr->cr_gid); 165 for (i = 0; i < cr->cr_ngroups; i++) 166 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), ",%d", 167 cr->cr_groups[i]); 168 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "\n"); 169 170 return (uiomove_frombuf(psbuf, ps - psbuf, uio)); 171 } 172
Indexes created Mon Sep 22 10:09:38 GMT 2025