+/*
+ * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
+ * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
+ * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
+ * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
+ * Copyright (c) 2005-2007 Roland McGrath <roland@redhat.com>
+ * Copyright (c) 2006-2007 Ulrich Drepper <drepper@redhat.com>
+ * Copyright (c) 2009-2013 Denys Vlasenko <dvlasenk@redhat.com>
+ * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2014-2018 The strace developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
#include "defs.h"
+#include "xstring.h"
-#include <fcntl.h>
+#include <asm/fcntl.h>
+
+/* some libcs are guilty of messing up with O_ACCMODE */
+#undef O_ACCMODE
+#define O_ACCMODE 03
#ifdef O_LARGEFILE
-# if O_LARGEFILE == 0 /* biarch platforms in 64-bit mode */
+# if O_LARGEFILE == 0 /* biarch platforms in 64-bit mode */
# undef O_LARGEFILE
-# ifdef SPARC64
-# define O_LARGEFILE 0x40000
-# elif defined X86_64 || defined S390X
-# define O_LARGEFILE 0100000
-# endif
# endif
#endif
#include "xlat/open_mode_flags.h"
#ifndef AT_FDCWD
-# define AT_FDCWD -100
+# define AT_FDCWD -100
#endif
/* The fd is an "int", so when decoding x86 on x86_64, we need to force sign
* other bits are real flags.
*/
const char *
-sprint_open_modes(int flags)
+sprint_open_modes(unsigned int flags)
{
static char outstr[(1 + ARRAY_SIZE(open_mode_flags)) * sizeof("O_LARGEFILE")];
char *p;
}
/* flags is still nonzero */
*p++ = sep;
- sprintf(p, "%#x", flags);
+ p = xappendstr(outstr, p, "%#x", flags);
return outstr;
}
void
-tprint_open_modes(int flags)
+tprint_open_modes(unsigned int flags)
{
tprints(sprint_open_modes(flags) + sizeof("flags"));
}
+#ifdef O_TMPFILE
+/* The kernel & C libraries often inline O_DIRECTORY. */
+# define STRACE_O_TMPFILE (O_TMPFILE & ~O_DIRECTORY)
+#else /* !O_TMPFILE */
+# define STRACE_O_TMPFILE 0
+#endif
+
static int
decode_open(struct tcb *tcp, int offset)
{
- if (entering(tcp)) {
- printpath(tcp, tcp->u_arg[offset]);
+ printpath(tcp, tcp->u_arg[offset]);
+ tprints(", ");
+ /* flags */
+ tprint_open_modes(tcp->u_arg[offset + 1]);
+ if (tcp->u_arg[offset + 1] & (O_CREAT | STRACE_O_TMPFILE)) {
+ /* mode */
tprints(", ");
- /* flags */
- tprint_open_modes(tcp->u_arg[offset + 1]);
- if (tcp->u_arg[offset + 1] & O_CREAT) {
- /* mode */
- tprintf(", %#lo", tcp->u_arg[offset + 2]);
- }
+ print_numeric_umode_t(tcp->u_arg[offset + 2]);
}
- return RVAL_FD;
+
+ return RVAL_DECODED | RVAL_FD;
}
SYS_FUNC(open)
SYS_FUNC(openat)
{
- if (entering(tcp))
- print_dirfd(tcp, tcp->u_arg[0]);
+ print_dirfd(tcp, tcp->u_arg[0]);
return decode_open(tcp, 1);
}
SYS_FUNC(creat)
{
- if (entering(tcp)) {
- printpath(tcp, tcp->u_arg[0]);
- tprintf(", %#lo", tcp->u_arg[1]);
- }
- return RVAL_FD;
+ printpath(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ print_numeric_umode_t(tcp->u_arg[1]);
+
+ return RVAL_DECODED | RVAL_FD;
}