githubmirror/strace

src/stat.c

66 строк1 KB

Dmitry V. Levin

stat: use print_fields.h helpers

15 мар 2021, 11:00

15 мар 2021, 11:0041477b6

/*
 * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@strace.io>
 * Copyright (c) 2015-2021 The strace developers.
 * All rights reserved.
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */

#include "defs.h"
#include "stat.h"

static void
decode_struct_stat(struct tcb *const tcp, const kernel_ulong_t addr)
{
	struct strace_stat st;

	if (fetch_struct_stat(tcp, addr, &st))
		print_struct_stat(tcp, &st);
}

SYS_FUNC(stat)
{
	if (entering(tcp)) {
		/* pathname */
		printpath(tcp, tcp->u_arg[0]);
		tprint_arg_next();
	} else {
		/* statbuf */
		decode_struct_stat(tcp, tcp->u_arg[1]);
	}
	return 0;
}

SYS_FUNC(fstat)
{
	if (entering(tcp)) {
		/* fd */
		printfd(tcp, tcp->u_arg[0]);
		tprint_arg_next();
	} else {
		/* statbuf */
		decode_struct_stat(tcp, tcp->u_arg[1]);
	}
	return 0;
}

SYS_FUNC(newfstatat)
{
	if (entering(tcp)) {
		/* dirfd */
		print_dirfd(tcp, tcp->u_arg[0]);
		tprint_arg_next();

		/* pathname */
		printpath(tcp, tcp->u_arg[1]);
		tprint_arg_next();
	} else {
		/* statbuf */
		decode_struct_stat(tcp, tcp->u_arg[2]);
		tprint_arg_next();

		/* flags */
		printflags(at_flags, tcp->u_arg[3], "AT_???");
	}
	return 0;
}