Dmitry V. Levin
9b5b67eb43
Fix open(2) flags parser. * defs.h (tprint_open_modes): New function. * desc.c (sprint_open_modes): New function. (sys_fcntl): Use tprint_open_modes() and sprint_open_modes(). * file.c (openmodes): Split xlat into open_access_modes and open_mode_flags. (tprint_open_modes): New function. (decode_open): Use it. * ipc.c (sys_mq_open, printmqattr): Likewise. Fixes RH#222385.
623 lines
19 KiB
C
623 lines
19 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef linux
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#include <features.h>
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#endif
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#ifdef _LARGEFILE64_SOURCE
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/* This is the macro everything checks before using foo64 names. */
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# ifndef _LFS64_LARGEFILE
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# define _LFS64_LARGEFILE 1
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# endif
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#endif
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/* configuration section */
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#ifndef MAX_QUALS
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#if defined(LINUX) && defined(MIPS)
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#define MAX_QUALS 5000 /* maximum number of syscalls, signals, etc. */
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#else
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#define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
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#endif
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#endif
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#ifndef DEFAULT_STRLEN
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#define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in
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`printstr', change with `-s' switch */
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#endif
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#ifndef DEFAULT_ACOLUMN
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#define DEFAULT_ACOLUMN 40 /* default alignment column for results */
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#endif
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#ifndef MAX_ARGS
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#define MAX_ARGS 32 /* maximum number of args to a syscall */
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#endif
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#ifndef DEFAULT_SORTBY
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#define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
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#endif
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#include <sys/time.h>
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#include <errno.h>
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#ifdef STDC_HEADERS
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#include <stddef.h>
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#endif /* STDC_HEADERS */
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#ifdef HAVE_SIGINFO_T
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#include <signal.h>
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#endif
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#if defined(LINUX)
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# if defined(SPARC) || defined(SPARC64)
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# define LINUXSPARC
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# endif
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# if defined(ALPHA)
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# define LINUX_64BIT
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# endif
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# if defined(X86_64)
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# define LINUX_X86_64
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# endif
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#endif
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#if defined(SVR4) || defined(FREEBSD)
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#define USE_PROCFS
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#else
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#undef USE_PROCFS
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#endif
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#ifdef FREEBSD
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#ifndef I386
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#error "FreeBSD support is only for i386 arch right now."
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#endif
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#include <machine/psl.h>
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#include <machine/reg.h>
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#include <sys/syscall.h>
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#endif
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#ifdef USE_PROCFS
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#include <sys/procfs.h>
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#ifdef HAVE_MP_PROCFS
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#include <sys/uio.h>
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#endif
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#ifdef FREEBSD
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#include <sys/pioctl.h>
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#endif /* FREEBSD */
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#else /* !USE_PROCFS */
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#if (defined(LINUXSPARC) || defined (LINUX_X86_64)) && defined(__GLIBC__)
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#include <sys/ptrace.h>
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#else
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/* Work around awkward prototype in ptrace.h. */
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#define ptrace xptrace
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#include <sys/ptrace.h>
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#undef ptrace
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#ifdef POWERPC
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#define __KERNEL__
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#include <asm/ptrace.h>
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#undef __KERNEL__
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#endif
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#ifdef __STDC__
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#ifdef LINUX
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extern long ptrace(int, int, char *, long);
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#else /* !LINUX */
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extern int ptrace(int, int, char *, int, ...);
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#endif /* !LINUX */
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#else /* !__STDC__ */
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extern int ptrace();
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#endif /* !__STDC__ */
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#endif /* !LINUXSPARC */
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#endif /* !SVR4 */
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#ifdef LINUX
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#if !defined(__GLIBC__)
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#define PTRACE_PEEKUSER PTRACE_PEEKUSR
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#define PTRACE_POKEUSER PTRACE_POKEUSR
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#endif
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#ifdef ALPHA
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# define REG_R0 0
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# define REG_A0 16
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# define REG_A3 19
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# define REG_FP 30
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# define REG_PC 64
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#endif /* ALPHA */
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#ifdef MIPS
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# define REG_V0 2
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# define REG_A0 4
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# define REG_A3 7
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# define REG_SP 29
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# define REG_EPC 64
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#endif /* MIPS */
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#ifdef HPPA
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# define PT_GR20 (20*4)
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# define PT_GR26 (26*4)
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# define PT_GR28 (28*4)
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# define PT_IAOQ0 (106*4)
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# define PT_IAOQ1 (107*4)
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#endif /* HPPA */
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#ifdef SH64
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/* SH64 Linux - this code assumes the following kernel API for system calls:
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PC Offset 0
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System Call Offset 16 (actually, (syscall no.) | (0x1n << 16),
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where n = no. of parameters.
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Other regs Offset 24+
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On entry: R2-7 = parameters 1-6 (as many as necessary)
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On return: R9 = result. */
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/* Offset for peeks of registers */
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# define REG_OFFSET (24)
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# define REG_GENERAL(x) (8*(x)+REG_OFFSET)
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# define REG_PC (0*8)
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# define REG_SYSCALL (2*8)
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#endif /* SH64 */
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#endif /* LINUX */
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#define SUPPORTED_PERSONALITIES 1
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#define DEFAULT_PERSONALITY 0
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#ifdef LINUXSPARC
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#include <linux/a.out.h>
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#include <asm/psr.h>
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#define PERSONALITY0_WORDSIZE 4
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#define PERSONALITY1_WORDSIZE 4
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#undef SUPPORTED_PERSONALITIES
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#if defined(SPARC64)
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#define SUPPORTED_PERSONALITIES 3
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#define PERSONALITY2_WORDSIZE 8
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#else
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#define SUPPORTED_PERSONALITIES 2
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#endif /* SPARC64 */
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#endif /* LINUXSPARC */
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#ifdef X86_64
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#undef SUPPORTED_PERSONALITIES
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#define SUPPORTED_PERSONALITIES 2
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#define PERSONALITY0_WORDSIZE 8
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#define PERSONALITY1_WORDSIZE 4
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#endif
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#ifdef SVR4
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#ifdef HAVE_MP_PROCFS
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extern int mp_ioctl (int f, int c, void *a, int s);
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#define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
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#define IOCTL_STATUS(t) \
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pread (t->pfd_stat, &t->status, sizeof t->status, 0)
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#define IOCTL_WSTOP(t) \
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(IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \
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IOCTL_STATUS (t))
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#define PR_WHY pr_lwp.pr_why
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#define PR_WHAT pr_lwp.pr_what
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#define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
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#define PR_FLAGS pr_lwp.pr_flags
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#define PR_SYSCALL pr_lwp.pr_syscall
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#define PR_INFO pr_lwp.pr_info
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#define PIOCSTIP PCSTOP
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#define PIOCSET PCSET
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#define PIOCRESET PCRESET
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#define PIOCSTRACE PCSTRACE
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#define PIOCSFAULT PCSFAULT
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#define PIOCWSTOP PCWSTOP
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#define PIOCSTOP PCSTOP
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#define PIOCSENTRY PCSENTRY
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#define PIOCSEXIT PCSEXIT
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#define PIOCRUN PCRUN
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#else
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#define IOCTL ioctl
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#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
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#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
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#define PR_WHY pr_why
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#define PR_WHAT pr_what
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#define PR_REG pr_reg
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#define PR_FLAGS pr_flags
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#define PR_SYSCALL pr_syscall
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#define PR_INFO pr_info
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#endif
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#endif
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#ifdef FREEBSD
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#define IOCTL ioctl
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#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
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#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status)
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#define PIOCRUN PIOCCONT
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#define PIOCWSTOP PIOCWAIT
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#define PR_WHY why
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#define PR_WHAT val
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#define PR_FLAGS state
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/* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
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status.state = 0 for running, 1 for stopped */
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#define PR_ASLEEP 1
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#define PR_SYSENTRY S_SCE
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#define PR_SYSEXIT S_SCX
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#define PR_SIGNALLED S_SIG
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#define PR_FAULTED S_CORE
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#endif
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/* Trace Control Block */
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struct tcb {
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short flags; /* See below for TCB_ values */
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int pid; /* Process Id of this entry */
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long scno; /* System call number */
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int u_nargs; /* System call arguments */
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long u_arg[MAX_ARGS]; /* System call arguments */
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int u_error; /* Error code */
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long u_rval; /* (first) return value */
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#ifdef HAVE_LONG_LONG
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long long u_lrval; /* long long return value */
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#endif
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FILE *outf; /* Output file for this process */
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const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
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struct timeval stime; /* System time usage as of last process wait */
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struct timeval dtime; /* Delta for system time usage */
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struct timeval etime; /* Syscall entry time */
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/* Support for tracing forked processes */
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struct tcb *parent; /* Parent of this process */
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int nchildren; /* # of traced children */
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int waitpid; /* pid(s) this process is waiting for */
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int nzombies; /* # of formerly traced children now dead */
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#ifdef LINUX
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int nclone_threads; /* # of nchildren with CLONE_THREAD */
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int nclone_detached; /* # of nchildren with CLONE_DETACHED */
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int nclone_waiting; /* clone threads in wait4 (TCB_SUSPENDED) */
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#endif
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/* (1st arg of wait4()) */
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long baddr; /* `Breakpoint' address */
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long inst[2]; /* Instructions on above */
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int pfd; /* proc file descriptor */
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#ifdef SVR4
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#ifdef HAVE_MP_PROCFS
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int pfd_stat;
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int pfd_as;
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pstatus_t status;
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#else
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prstatus_t status; /* procfs status structure */
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#endif
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#endif
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#ifdef FREEBSD
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struct procfs_status status;
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int pfd_reg;
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int pfd_status;
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#endif
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};
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/* TCB flags */
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#define TCB_STARTUP 00001 /* We have just begun ptracing this process */
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#define TCB_INUSE 00002 /* This table entry is in use */
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#define TCB_INSYSCALL 00004 /* A system call is in progress */
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#define TCB_ATTACHED 00010 /* Process is not our own child */
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#define TCB_EXITING 00020 /* As far as we know, this process is exiting */
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#define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can
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not be allowed to complete just now */
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#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
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#define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
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#define TCB_FOLLOWFORK 00400 /* Process should have forks followed */
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#define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
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#ifdef LINUX
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# if defined(ALPHA) || defined(SPARC) || defined(SPARC64) || defined(POWERPC) || defined(IA64) || defined(HPPA) || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) || defined(ARM)
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# define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */
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# endif
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# define TCB_CLONE_DETACHED 04000 /* CLONE_DETACHED set in creating syscall */
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# define TCB_CLONE_THREAD 010000 /* CLONE_THREAD set in creating syscall */
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# define TCB_GROUP_EXITING 020000 /* TCB_EXITING was exit_group, not _exit */
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# include <sys/syscall.h>
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# ifndef __NR_exit_group
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# /* Hack: Most headers around are too old to have __NR_exit_group. */
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# ifdef ALPHA
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# define __NR_exit_group 405
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# elif defined I386
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# define __NR_exit_group 252
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# elif defined X86_64
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# define __NR_exit_group 231
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# elif defined IA64
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# define __NR_exit_group 1236
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# elif defined POWERPC
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# define __NR_exit_group 234
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# elif defined S390 || defined S390X
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# define __NR_exit_group 248
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# elif defined SPARC || defined SPARC64
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# define __NR_exit_group 188
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# elif defined M68K
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# define __NR_exit_group 247
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# endif /* ALPHA et al */
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# endif /* !__NR_exit_group */
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#endif /* LINUX */
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/* qualifier flags */
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#define QUAL_TRACE 0001 /* this system call should be traced */
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#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
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#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
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#define QUAL_RAW 0010 /* print all args in hex for this syscall */
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#define QUAL_SIGNAL 0020 /* report events with this signal */
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#define QUAL_FAULT 0040 /* report events with this fault */
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#define QUAL_READ 0100 /* dump data read on this file descriptor */
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#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
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#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
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#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
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#define syserror(tcp) ((tcp)->u_error != 0)
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#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
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#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
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struct xlat {
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int val;
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char *str;
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};
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/* Format of syscall return values */
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#define RVAL_DECIMAL 000 /* decimal format */
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#define RVAL_HEX 001 /* hex format */
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#define RVAL_OCTAL 002 /* octal format */
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#define RVAL_UDECIMAL 003 /* unsigned decimal format */
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#define RVAL_LDECIMAL 004 /* long decimal format */
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#define RVAL_LHEX 005 /* long hex format */
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#define RVAL_LOCTAL 006 /* long octal format */
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#define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
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#define RVAL_MASK 007 /* mask for these values */
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#define RVAL_STR 010 /* Print `auxstr' field after return val */
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#define RVAL_NONE 020 /* Print nothing */
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#ifndef offsetof
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#define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
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((char *) (type *) NULL))
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#endif /* !offsetof */
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/* get offset of member within a user struct */
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#define uoff(member) offsetof(struct user, member)
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#define TRACE_FILE 001 /* Trace file-related syscalls. */
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#define TRACE_IPC 002 /* Trace IPC-related syscalls. */
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#define TRACE_NETWORK 004 /* Trace network-related syscalls. */
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#define TRACE_PROCESS 010 /* Trace process-related syscalls. */
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#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
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#define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
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extern struct tcb **tcbtab;
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extern int *qual_flags;
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extern int debug, followfork, followvfork;
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extern int dtime, cflag, xflag, qflag;
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extern int acolumn;
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extern unsigned int nprocs, tcbtabsize;
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extern int max_strlen;
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extern struct tcb *tcp_last;
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#ifdef __STDC__
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#define P(args) args
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#else
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#define P(args) ()
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#endif
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enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
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extern int set_personality P((int personality));
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extern const char *xlookup P((const struct xlat *, int));
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extern struct tcb *alloc_tcb P((int, int));
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extern struct tcb *pid2tcb P((int));
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extern void droptcb P((struct tcb *));
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extern int expand_tcbtab P((void));
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#define alloctcb(pid) alloc_tcb((pid), 1)
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extern void set_sortby P((char *));
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extern void set_overhead P((int));
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extern void qualify P((char *));
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extern int get_scno P((struct tcb *));
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extern long known_scno P((struct tcb *));
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extern int trace_syscall P((struct tcb *));
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extern int count_syscall P((struct tcb *, struct timeval *));
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extern void printxval P((const struct xlat *, int, const char *));
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extern int printargs P((struct tcb *));
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extern int addflags P((const struct xlat *, int));
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extern int printflags P((const struct xlat *, int, const char *));
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extern int umoven P((struct tcb *, long, int, char *));
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extern int umovestr P((struct tcb *, long, int, char *));
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extern int upeek P((int, long, long *));
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extern void dumpiov P((struct tcb *, int, long));
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extern void dumpstr P((struct tcb *, long, int));
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extern void printstr P((struct tcb *, long, int));
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extern void printnum P((struct tcb *, long, char *));
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extern void printnum_int P((struct tcb *, long, char *));
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extern void printpath P((struct tcb *, long));
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extern void printpathn P((struct tcb *, long, int));
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extern void printtv_bitness P((struct tcb *, long, enum bitness_t));
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extern void sprinttv P((struct tcb *, long, enum bitness_t, char *));
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#ifdef HAVE_SIGINFO_T
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extern void printsiginfo P((siginfo_t *, int));
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#endif
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extern void printsock P((struct tcb *, long, int));
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extern void print_sock_optmgmt P((struct tcb *, long, int));
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extern void printrusage P((struct tcb *, long));
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extern void printuid P((const char *, unsigned long));
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extern int clearbpt P((struct tcb *));
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extern int setbpt P((struct tcb *));
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extern int sigishandled P((struct tcb *, int));
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extern void printcall P((struct tcb *));
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extern const char *signame P((int));
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extern void print_sigset P((struct tcb *, long, int));
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extern void printsignal P((int));
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extern void printleader P((struct tcb *));
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extern void printtrailer P((struct tcb *));
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extern void tabto P((int));
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extern void call_summary P((FILE *));
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extern void tprint_iov P((struct tcb *, unsigned long, unsigned long));
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extern void tprint_open_modes P((struct tcb *, mode_t));
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#ifdef LINUX
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extern int internal_clone P((struct tcb *));
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#endif
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extern int internal_fork P((struct tcb *));
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extern int internal_exec P((struct tcb *));
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extern int internal_wait P((struct tcb *, int));
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extern int internal_exit P((struct tcb *));
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extern const struct ioctlent *ioctl_lookup P((long));
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extern const struct ioctlent *ioctl_next_match P((const struct ioctlent *));
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extern int ioctl_decode P((struct tcb *, long, long));
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extern int term_ioctl P((struct tcb *, long, long));
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extern int sock_ioctl P((struct tcb *, long, long));
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extern int proc_ioctl P((struct tcb *, int, int));
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extern int stream_ioctl P((struct tcb *, int, int));
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#ifdef LINUX
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extern int rtc_ioctl P((struct tcb *, long, long));
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#endif
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extern void tv_tv P((struct timeval *, int, int));
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extern int tv_nz P((struct timeval *));
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extern int tv_cmp P((struct timeval *, struct timeval *));
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extern double tv_float P((struct timeval *));
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extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
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extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
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extern void tv_mul P((struct timeval *, struct timeval *, int));
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extern void tv_div P((struct timeval *, struct timeval *, int));
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#ifdef SUNOS4
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extern int fixvfork P((struct tcb *));
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#endif
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#if !(defined(LINUX) && !defined(SPARC) && !defined(SPARC64) && !defined(IA64))
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extern long getrval2 P((struct tcb *));
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#endif
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#ifdef USE_PROCFS
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extern int proc_open P((struct tcb *tcp, int attaching));
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#endif
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#define umove(pid, addr, objp) \
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umoven((pid), (addr), sizeof *(objp), (char *) (objp))
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#define printtv(tcp, addr) \
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printtv_bitness((tcp), (addr), BITNESS_CURRENT)
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#ifdef __STDC__
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#ifdef __GNUC__
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extern void tprintf(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)));
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#else
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|
extern void tprintf(const char *fmt, ...);
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|
#endif
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#else
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|
extern void tprintf();
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|
#endif
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|
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#ifndef HAVE_STRERROR
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const char *strerror P((int));
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|
#endif
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|
#ifndef HAVE_STRSIGNAL
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const char *strsignal P((int));
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|
#endif
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|
|
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extern int current_personality;
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|
extern const int personality_wordsize[];
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|
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struct sysent {
|
|
int nargs;
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|
int sys_flags;
|
|
int (*sys_func)();
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|
const char *sys_name;
|
|
long native_scno; /* Match against SYS_* constants. */
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|
};
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|
|
|
extern const struct sysent *sysent;
|
|
extern int nsyscalls;
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|
|
|
extern const char *const *errnoent;
|
|
extern int nerrnos;
|
|
|
|
struct ioctlent {
|
|
const char *doth;
|
|
const char *symbol;
|
|
unsigned long code;
|
|
};
|
|
|
|
extern const struct ioctlent *ioctlent;
|
|
extern int nioctlents;
|
|
|
|
extern const char *const *signalent;
|
|
extern int nsignals;
|
|
|
|
extern const struct ioctlent ioctlent0[];
|
|
extern const int nioctlents0;
|
|
extern const char *const signalent0[];
|
|
extern const int nsignals0;
|
|
|
|
#if SUPPORTED_PERSONALITIES >= 2
|
|
extern const struct ioctlent ioctlent1[];
|
|
extern const int nioctlents1;
|
|
extern const char *const signalent1[];
|
|
extern const int nsignals1;
|
|
#endif /* SUPPORTED_PERSONALITIES >= 2 */
|
|
|
|
#if SUPPORTED_PERSONALITIES >= 3
|
|
extern const struct ioctlent ioctlent2[];
|
|
extern const int nioctlents2;
|
|
extern const char *const signalent2[];
|
|
extern const int nsignals2;
|
|
#endif /* SUPPORTED_PERSONALITIES >= 3 */
|
|
|
|
#if defined(FREEBSD) || (defined(LINUX) \
|
|
&& defined(POWERPC) && !defined(__powerpc64__)) \
|
|
|| (defined (LINUX) && defined (MIPS) && !defined(__mips64))
|
|
/* ARRGH! off_t args are aligned on 64 bit boundaries! */
|
|
#define ALIGN64(tcp,arg) \
|
|
do { \
|
|
if (arg % 2) \
|
|
memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
|
|
(tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
|
|
} while (0)
|
|
#else
|
|
#define ALIGN64(tcp,arg) do { } while (0)
|
|
#endif
|
|
|
|
#if HAVE_LONG_LONG
|
|
|
|
/* _l refers to the lower numbered u_arg,
|
|
* _h refers to the higher numbered u_arg
|
|
*/
|
|
|
|
#if HAVE_LITTLE_ENDIAN_LONG_LONG
|
|
#define LONG_LONG(_l,_h) \
|
|
((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
|
|
#else
|
|
#define LONG_LONG(_l,_h) \
|
|
((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef IA64
|
|
extern long ia32;
|
|
#endif
|
|
|
|
extern int not_failing_only;
|