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/* $Id$ */
/* Copyright (C) 1998 Joshua Sled
This file is part of LibGTop 1.0.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
LibGTop is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
LibGTop is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/xmalloc.h>
#include <glibtop/procargs.h>
#include <glibtop_suid.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/proc.h>
static const unsigned long _glibtop_sysdeps_proc_args =
(1L << GLIBTOP_PROC_ARGS_SIZE);
/* Init function. */
void
glibtop_init_proc_args_p (glibtop *server)
{
server->sysdeps.proc_args = _glibtop_sysdeps_proc_args;
}
/* Provides detailed information about a process. */
char *
glibtop_get_proc_args_p (glibtop *server, glibtop_proc_args *buf,
pid_t pid, unsigned max_len)
{
struct kinfo_proc *pinfo;
char *retval, **args, **ptr;
unsigned size = 0, pos = 0;
int count;
#ifndef __bsdi__
char filename [BUFSIZ];
struct stat statb;
#endif
glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_ARGS), 0);
memset (buf, 0, sizeof (glibtop_proc_args));
/* swapper, init, pagedaemon, vmdaemon, update - this doen't work. */
if (pid < 5) return NULL;
#ifndef __bsdi__
sprintf (filename, "/proc/%d/mem", pid);
if (stat (filename, &statb)) return NULL;
#endif
glibtop_suid_enter (server);
/* Get the process data */
pinfo = kvm_getprocs (server->machine.kd, KERN_PROC_PID, pid, &count);
if ((pinfo == NULL) || (count < 1)) {
glibtop_suid_leave (server);
glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
return NULL;
}
args = kvm_getargv (server->machine.kd, pinfo, max_len);
if (args == NULL) {
glibtop_suid_leave (server);
glibtop_warn_io_r (server, "kvm_getargv (%d)", pid);
return NULL;
}
glibtop_suid_leave (server);
for (ptr = args; *ptr; ptr++)
size += strlen (*ptr)+1;
size += 2;
retval = glibtop_malloc_r (server, size);
memset (retval, 0, size);
for (ptr = args; *ptr; ptr++) {
int len = strlen (*ptr)+1;
memcpy (retval+pos, *ptr, len);
pos += len;
}
buf->size = pos ? pos-1 : 0;
buf->flags = _glibtop_sysdeps_proc_args;
return retval;
}
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