Blame sysdeps/cygwin/procargs.c

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/* Copyright (C) 1998-99 Martin Baulig
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   This file is part of LibGTop 1.0.
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   Contributed by Martin Baulig <martin@home-of-linux.org>, April 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., 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 <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procargs.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_s (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_s (glibtop *server, glibtop_proc_args *buf,
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			 pid_t pid, unsigned max_len)
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{
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	char filename[48]; /* magiv */
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	char *args;
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	gsize length;
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	GError *error = NULL;
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	memset (buf, 0, sizeof (glibtop_proc_args));
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	sprintf (filename, "/proc/%d/cmdline", pid);
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	if(!g_file_get_contents(filename, &args, &length, &error)) {
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		g_error_free(error);
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		buf->size = 0;
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		return NULL;
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	}
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	if(max_len && max_len < length) {
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		args = g_realloc(args, max_len);
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		args[max_len - 1] = '\0';
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		length = max_len;
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	}
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	buf->size = length;
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	buf->flags = _glibtop_sysdeps_proc_args;
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	return args;
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}