102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/* $OpenBSD: procargs.c,v 1.3 2011/05/23 19:35:54 jasper Exp $ */
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/* Copyright (C) 1998 Joshua Sled
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This file is part of LibGTop 1.0.
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Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
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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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procargs.h>
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#include <glibtop_suid.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/proc.h>
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static const unsigned long _glibtop_sysdeps_proc_args =
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(1L << GLIBTOP_PROC_ARGS_SIZE);
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/* Init function. */
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void
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_glibtop_init_proc_args_p (glibtop *server)
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{
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server->sysdeps.proc_args = _glibtop_sysdeps_proc_args;
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}
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/* Provides detailed information about a process. */
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char *
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glibtop_get_proc_args_p (glibtop *server, glibtop_proc_args *buf,
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pid_t pid, unsigned max_len)
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{
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struct kinfo_proc2 *pinfo;
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char *retval, **args, **ptr;
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size_t size = 0, pos = 0;
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int count;
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glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_ARGS), 0);
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memset (buf, 0, sizeof (glibtop_proc_args));
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/* swapper, init, pagedaemon, vmdaemon, update - this doen't work. */
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if (pid < 5) return NULL;
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glibtop_suid_enter (server);
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/* Get the process data */
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pinfo = kvm_getproc2 (server->machine.kd, KERN_PROC_PID, pid,
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sizeof (*pinfo), &count);
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if ((pinfo == NULL) || (count < 1)) {
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glibtop_suid_leave (server);
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glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
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return NULL;
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}
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args = kvm_getargv2 (server->machine.kd, pinfo, max_len);
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if (args == NULL) {
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glibtop_suid_leave (server);
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glibtop_warn_io_r (server, "kvm_getargv (%d)", pid);
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return NULL;
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}
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glibtop_suid_leave (server);
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for (ptr = args; *ptr; ptr++)
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size += strlen (*ptr)+1;
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size += 2;
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retval = g_malloc0 (size);
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for (ptr = args; *ptr; ptr++) {
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const size_t len = strlen (*ptr)+1;
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memcpy (retval+pos, *ptr, len);
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pos += len;
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}
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buf->size = pos ? pos-1 : 0;
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buf->flags = _glibtop_sysdeps_proc_args;
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return retval;
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}
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