/* Copyright (C) 1998-99 Martin Baulig

   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <martin@home-of-linux.org>, April 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., 51 Franklin Street, Fifth Floor,

   Boston, MA 02110-1301, USA.

*/

#include <config.h>

#include <glibtop.h>

#include <glibtop/error.h>

#include <glibtop/procargs.h>

static const unsigned long _glibtop_sysdeps_proc_args =

(1L << GLIBTOP_PROC_ARGS_SIZE);

/* Init function. */

void

_glibtop_init_proc_args_s (glibtop *server)

{

	server->sysdeps.proc_args = _glibtop_sysdeps_proc_args;

}

/* Provides detailed information about a process. */

char *

glibtop_get_proc_args_s (glibtop *server, glibtop_proc_args *buf,

			 pid_t pid, unsigned max_len)

{

	char filename[48]; /* magiv */

	char *args;

	gsize length;

	GError *error = NULL;

	memset (buf, 0, sizeof (glibtop_proc_args));

	sprintf (filename, "/proc/%d/cmdline", pid);

	if(!g_file_get_contents(filename, &args, &length, &error)) {

		g_error_free(error);

		buf->size = 0;

		return NULL;

	}

	if(max_len && max_len < length) {

		args = g_realloc(args, max_len);

		args[max_len - 1] = '\0';

		length = max_len;

	}

	buf->size = length;

	buf->flags = _glibtop_sysdeps_proc_args;

	return args;

}