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/*
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This file is part of LibGTop 2.0.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <unistd.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procstate.h>
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#include <glibtop_suid.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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static const unsigned long _glibtop_sysdeps_proc_state =
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(1L << GLIBTOP_PROC_STATE_CMD) + (1L << GLIBTOP_PROC_STATE_STATE) +
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(1L << GLIBTOP_PROC_STATE_UID) + (1L << GLIBTOP_PROC_STATE_GID);
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/* Init function. */
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void
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_glibtop_init_proc_state_p (glibtop *server)
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{
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server->sysdeps.proc_state = _glibtop_sysdeps_proc_state;
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}
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/* Provides detailed information about a process. */
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void
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glibtop_get_proc_state_p (glibtop *server, glibtop_proc_state *buf,
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pid_t pid)
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{
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int mib[4];
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size_t length;
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struct kinfo_proc kinfo;
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glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_STATE), 0);
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memset (buf, 0, sizeof (glibtop_proc_state));
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mib [0] = CTL_KERN;
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mib [1] = KERN_PROC;
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mib [2] = KERN_PROC_PID;
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mib [3] = pid;
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length = sizeof (struct kinfo_proc);
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if (sysctl (mib, 4, &kinfo, &length, NULL, 0) < 0) {
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glibtop_warn_io_r (server, "sysctl (procstat)");
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return;
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}
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strncpy (buf->cmd, kinfo.kp_proc.p_comm, sizeof (buf->cmd) - 1);
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buf->cmd [sizeof (buf->cmd) - 1] = 0;
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buf->uid = kinfo.kp_eproc.e_pcred.p_svuid;
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buf->gid = kinfo.kp_eproc.e_pcred.p_svgid;
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switch (kinfo.kp_proc.p_stat) {
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case SIDL:
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buf->state = 0;
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break;
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case SRUN:
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buf->state = 'R';
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break;
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case SSLEEP:
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buf->state = 'S';
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break;
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case SSTOP:
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buf->state = 'T';
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break;
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case SZOMB:
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buf->state = 'Z';
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break;
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default:
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return;
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}
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buf->flags = _glibtop_sysdeps_proc_state;
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}
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