1725 lines
52 KiB
C
1725 lines
52 KiB
C
/* $OpenBSD: sh.h,v 1.30 2010/01/04 18:07:11 deraadt Exp $ */
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/* $OpenBSD: shf.h,v 1.6 2005/12/11 18:53:51 deraadt Exp $ */
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/* $OpenBSD: table.h,v 1.7 2005/12/11 20:31:21 otto Exp $ */
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/* $OpenBSD: tree.h,v 1.10 2005/03/28 21:28:22 deraadt Exp $ */
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/* $OpenBSD: expand.h,v 1.6 2005/03/30 17:16:37 deraadt Exp $ */
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/* $OpenBSD: lex.h,v 1.11 2006/05/29 18:22:24 otto Exp $ */
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/* $OpenBSD: proto.h,v 1.33 2010/05/19 17:36:08 jasper Exp $ */
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/* $OpenBSD: c_test.h,v 1.4 2004/12/20 11:34:26 otto Exp $ */
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/* $OpenBSD: tty.h,v 1.5 2004/12/20 11:34:26 otto Exp $ */
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/*-
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* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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* Thorsten Glaser <tg@mirbsd.org>
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*
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* Provided that these terms and disclaimer and all copyright notices
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* are retained or reproduced in an accompanying document, permission
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* is granted to deal in this work without restriction, including un-
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* limited rights to use, publicly perform, distribute, sell, modify,
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* merge, give away, or sublicence.
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*
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* This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
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* the utmost extent permitted by applicable law, neither express nor
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* implied; without malicious intent or gross negligence. In no event
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* may a licensor, author or contributor be held liable for indirect,
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* direct, other damage, loss, or other issues arising in any way out
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* of dealing in the work, even if advised of the possibility of such
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* damage or existence of a defect, except proven that it results out
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* of said person's immediate fault when using the work as intended.
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*/
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#ifdef __dietlibc__
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/* XXX imake style */
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#define _BSD_SOURCE /* live, BSD, live! */
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#endif
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#if HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#if HAVE_SYS_SYSMACROS_H
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#include <sys/sysmacros.h>
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#endif
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#if HAVE_SYS_MKDEV_H
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#include <sys/mkdev.h>
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#endif
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#if HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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|
#include <dirent.h>
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|
#include <errno.h>
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|
#include <fcntl.h>
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|
#if HAVE_LIBGEN_H
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#include <libgen.h>
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#endif
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|
#if HAVE_LIBUTIL_H
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#include <libutil.h>
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#endif
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|
#include <limits.h>
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|
#if HAVE_PATHS_H
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|
#include <paths.h>
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#endif
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#include <pwd.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <stdarg.h>
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|
#if HAVE_STDBOOL_H
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#include <stdbool.h>
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|
#endif
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#include <stddef.h>
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#if HAVE_STDINT_H
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#include <stdint.h>
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|
#endif
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#include <stdio.h>
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#include <stdlib.h>
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|
#include <string.h>
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|
#if HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#include <termios.h>
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|
#include <time.h>
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|
#if HAVE_ULIMIT_H
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#include <ulimit.h>
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#endif
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#include <unistd.h>
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|
#if HAVE_VALUES_H
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#include <values.h>
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#endif
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|
|
#undef __attribute__
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|
#if HAVE_ATTRIBUTE_BOUNDED
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#define MKSH_A_BOUNDED(x,y,z) __attribute__((bounded (x, y, z)))
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#else
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#define MKSH_A_BOUNDED(x,y,z) /* nothing */
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#endif
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#if HAVE_ATTRIBUTE_FORMAT
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#define MKSH_A_FORMAT(x,y,z) __attribute__((format (x, y, z)))
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#else
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#define MKSH_A_FORMAT(x,y,z) /* nothing */
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#endif
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#if HAVE_ATTRIBUTE_NONNULL
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#define MKSH_A_NONNULL(a) __attribute__(a)
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#else
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#define MKSH_A_NONNULL(a) /* nothing */
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#endif
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#if HAVE_ATTRIBUTE_NORETURN
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#define MKSH_A_NORETURN __attribute__((noreturn))
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#else
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#define MKSH_A_NORETURN /* nothing */
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#endif
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#if HAVE_ATTRIBUTE_UNUSED
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#define MKSH_A_UNUSED __attribute__((unused))
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#else
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#define MKSH_A_UNUSED /* nothing */
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#endif
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#if HAVE_ATTRIBUTE_USED
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#define MKSH_A_USED __attribute__((used))
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#else
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#define MKSH_A_USED /* nothing */
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#endif
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#if defined(MirBSD) && (MirBSD >= 0x09A1) && \
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defined(__ELF__) && defined(__GNUC__) && \
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!defined(__llvm__) && !defined(__NWCC__)
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/*
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* We got usable __IDSTRING __COPYRIGHT __RCSID __SCCSID macros
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* which work for all cases; no need to redefine them using the
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* "portable" macros from below when we might have the "better"
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* gcc+ELF specific macros or other system dependent ones.
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*/
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#else
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#undef __IDSTRING
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#undef __IDSTRING_CONCAT
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#undef __IDSTRING_EXPAND
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#undef __COPYRIGHT
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#undef __RCSID
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#undef __SCCSID
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#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
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#define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
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#define __IDSTRING(prefix, string) \
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static const char __IDSTRING_EXPAND(__LINE__,prefix) [] \
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MKSH_A_USED = "@(""#)" #prefix ": " string
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#define __COPYRIGHT(x) __IDSTRING(copyright,x)
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#define __RCSID(x) __IDSTRING(rcsid,x)
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#define __SCCSID(x) __IDSTRING(sccsid,x)
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#endif
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#ifdef EXTERN
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.400 2010/07/21 11:31:16 tg Exp $");
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#endif
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#define MKSH_VERSION "R39 2010/07/21"
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#ifndef MKSH_INCLUDES_ONLY
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/* extra types */
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#if !HAVE_GETRUSAGE
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#undef rusage
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#undef RUSAGE_SELF
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#undef RUSAGE_CHILDREN
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#define rusage mksh_rusage
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#define RUSAGE_SELF 0
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#define RUSAGE_CHILDREN -1
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struct rusage {
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struct timeval ru_utime;
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struct timeval ru_stime;
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};
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#endif
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#if !HAVE_RLIM_T
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typedef long rlim_t;
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#endif
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#if !HAVE_SIG_T
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#undef sig_t
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typedef void (*sig_t)(int);
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#endif
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#if !HAVE_STDBOOL_H
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/* kludge, but enough for mksh */
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typedef int bool;
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#define false 0
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#define true 1
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#endif
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/* extra macros */
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|
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#ifndef timerclear
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#define timerclear(tvp) \
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do { \
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(tvp)->tv_sec = (tvp)->tv_usec = 0; \
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} while (/* CONSTCOND */ 0)
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#endif
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#ifndef timeradd
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#define timeradd(tvp, uvp, vvp) \
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do { \
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(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
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if ((vvp)->tv_usec >= 1000000) { \
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(vvp)->tv_sec++; \
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(vvp)->tv_usec -= 1000000; \
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} \
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} while (/* CONSTCOND */ 0)
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#endif
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#ifndef timersub
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#define timersub(tvp, uvp, vvp) \
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do { \
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(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
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if ((vvp)->tv_usec < 0) { \
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(vvp)->tv_sec--; \
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(vvp)->tv_usec += 1000000; \
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} \
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} while (/* CONSTCOND */ 0)
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#endif
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#define ksh_isdigit(c) (((c) >= '0') && ((c) <= '9'))
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#define ksh_islower(c) (((c) >= 'a') && ((c) <= 'z'))
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#define ksh_isupper(c) (((c) >= 'A') && ((c) <= 'Z'))
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#define ksh_tolower(c) (((c) >= 'A') && ((c) <= 'Z') ? (c) - 'A' + 'a' : (c))
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#define ksh_toupper(c) (((c) >= 'a') && ((c) <= 'z') ? (c) - 'a' + 'A' : (c))
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#define ksh_isdash(s) (((s) != NULL) && ((s)[0] == '-') && ((s)[1] == '\0'))
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#define ksh_isspace(c) ((((c) >= 0x09) && ((c) <= 0x0D)) || ((c) == 0x20))
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#ifdef NO_PATH_MAX
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|
#undef PATH_MAX
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|
#else
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#ifndef PATH_MAX
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#define PATH_MAX 1024
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|
#endif
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#endif
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#ifndef SIZE_MAX
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#ifdef SIZE_T_MAX
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#define SIZE_MAX SIZE_T_MAX
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#else
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#define SIZE_MAX ((size_t)-1)
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#endif
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#endif
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#ifndef S_ISLNK
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#define S_ISLNK(m) ((m & 0170000) == 0120000)
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#endif
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#ifndef S_ISSOCK
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#define S_ISSOCK(m) ((m & 0170000) == 0140000)
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#endif
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#ifndef DEFFILEMODE
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|
#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
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|
#endif
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|
|
#if !defined(MAP_FAILED)
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|
/* XXX imake style */
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|
# if defined(__linux)
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|
#define MAP_FAILED ((void *)-1)
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# elif defined(__bsdi__) || defined(__osf__) || defined(__ultrix)
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#define MAP_FAILED ((caddr_t)-1)
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# endif
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#endif
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|
|
#ifndef NSIG
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|
#if defined(_NSIG)
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#define NSIG _NSIG
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#elif defined(SIGMAX)
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#define NSIG (SIGMAX+1)
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#endif
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#endif
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#undef BAD /* AIX defines that somewhere */
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|
/* OS-dependent additions (functions, variables, by OS) */
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|
#if !HAVE_FLOCK_DECL
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|
extern int flock(int, int);
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#endif
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|
|
#if !HAVE_GETRUSAGE
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|
extern int getrusage(int, struct rusage *);
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|
#endif
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|
|
#if !HAVE_REVOKE_DECL
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|
extern int revoke(const char *);
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|
#endif
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|
|
#if !HAVE_SETMODE
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mode_t getmode(const void *, mode_t);
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void *setmode(const char *);
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#endif
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|
|
#ifdef __ultrix
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/* XXX imake style */
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int strcasecmp(const char *, const char *);
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#endif
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|
|
#if !HAVE_STRCASESTR
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const char *stristr(const char *, const char *);
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|
#endif
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|
|
#if !HAVE_STRLCPY
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|
size_t strlcpy(char *, const char *, size_t);
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|
#endif
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|
|
#if !HAVE_SYS_SIGLIST_DECL
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|
extern const char *const sys_siglist[];
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|
#endif
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|
|
#ifdef __INTERIX
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|
/* XXX imake style */
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|
#define makedev mkdev
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|
extern int __cdecl seteuid(uid_t);
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|
extern int __cdecl setegid(gid_t);
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#endif
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|
|
/* some useful #defines */
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|
#ifdef EXTERN
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# define I__(i) = i
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#else
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# define I__(i)
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# define EXTERN extern
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# define EXTERN_DEFINED
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#endif
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#define NELEM(a) (sizeof(a) / sizeof((a)[0]))
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#define BIT(i) (1 << (i)) /* define bit in flag */
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|
/* Table flag type - needs > 16 and < 32 bits */
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typedef int32_t Tflag;
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|
|
/* arithmetics types */
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typedef int32_t mksh_ari_t;
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typedef uint32_t mksh_uari_t;
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|
|
/* these shall be smaller than 100 */
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#ifdef MKSH_CONSERVATIVE_FDS
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#define NUFILE 32 /* Number of user-accessible files */
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#define FDBASE 10 /* First file usable by Shell */
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#else
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#define NUFILE 56 /* Number of user-accessible files */
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#define FDBASE 24 /* First file usable by Shell */
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#endif
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|
/* Make MAGIC a char that might be printed to make bugs more obvious, but
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* not a char that is used often. Also, can't use the high bit as it causes
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* portability problems (calling strchr(x, 0x80|'x') is error prone).
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*/
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#define MAGIC (7) /* prefix for *?[!{,} during expand */
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#define ISMAGIC(c) ((unsigned char)(c) == MAGIC)
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|
#define NOT '!' /* might use ^ (ie, [!...] vs [^..]) */
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|
|
#define LINE 4096 /* input line size */
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|
|
EXTERN const char *safe_prompt; /* safe prompt if PS1 substitution fails */
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|
EXTERN const char initvsn[] I__("KSH_VERSION=@(#)MIRBSD KSH " MKSH_VERSION);
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|
#define KSH_VERSION (initvsn + /* "KSH_VERSION=@(#)" */ 16)
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|
EXTERN const char digits_uc[] I__("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
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|
EXTERN const char digits_lc[] I__("0123456789abcdefghijklmnopqrstuvwxyz");
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|
|
/*
|
|
* Evil hack for const correctness due to API brokenness
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|
*/
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union mksh_cchack {
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char *rw;
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const char *ro;
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};
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union mksh_ccphack {
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char **rw;
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const char **ro;
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};
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|
|
/* for const debugging */
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|
#if defined(DEBUG) && defined(__GNUC__) && !defined(__ICC) && \
|
|
!defined(__INTEL_COMPILER) && !defined(__SUNPRO_C)
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|
char *ucstrchr(char *, int);
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|
char *ucstrstr(char *, const char *);
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|
#undef strchr
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|
#define strchr ucstrchr
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|
#define strstr ucstrstr
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|
#define cstrchr(s,c) ({ \
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union mksh_cchack in, out; \
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\
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in.ro = (s); \
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out.rw = ucstrchr(in.rw, (c)); \
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(out.ro); \
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})
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#define cstrstr(b,l) ({ \
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|
union mksh_cchack in, out; \
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\
|
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in.ro = (b); \
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out.rw = ucstrstr(in.rw, (l)); \
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|
(out.ro); \
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|
})
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|
#define vstrchr(s,c) (cstrchr((s), (c)) != NULL)
|
|
#define vstrstr(b,l) (cstrstr((b), (l)) != NULL)
|
|
#define mkssert(e) ((e) ? (void)0 : exit(255))
|
|
#else /* !DEBUG, !gcc */
|
|
#define cstrchr(s,c) ((const char *)strchr((s), (c)))
|
|
#define cstrstr(s,c) ((const char *)strstr((s), (c)))
|
|
#define vstrchr(s,c) (strchr((s), (c)) != NULL)
|
|
#define vstrstr(b,l) (strstr((b), (l)) != NULL)
|
|
#define mkssert(e) ((void)0)
|
|
#endif
|
|
|
|
/* use this ipv strchr(s, 0) but no side effects in s! */
|
|
#define strnul(s) ((s) + strlen(s))
|
|
|
|
#define utf_ptradjx(src, dst) do { \
|
|
(dst) = (src) + utf_ptradj(src); \
|
|
} while (/* CONSTCOND */ 0)
|
|
|
|
#ifdef MKSH_SMALL
|
|
#define strdupx(d, s, ap) do { \
|
|
(d) = strdup_((s), (ap)); \
|
|
} while (/* CONSTCOND */ 0)
|
|
#define strndupx(d, s, n, ap) do { \
|
|
(d) = strndup_((s), (n), (ap)); \
|
|
} while (/* CONSTCOND */ 0)
|
|
#else
|
|
/* be careful to evaluate arguments only once! */
|
|
#define strdupx(d, s, ap) do { \
|
|
const char *strdup_src = (s); \
|
|
char *strdup_dst = NULL; \
|
|
\
|
|
if (strdup_src != NULL) { \
|
|
size_t strdup_len = strlen(strdup_src) + 1; \
|
|
strdup_dst = alloc(strdup_len, (ap)); \
|
|
memcpy(strdup_dst, strdup_src, strdup_len); \
|
|
} \
|
|
(d) = strdup_dst; \
|
|
} while (/* CONSTCOND */ 0)
|
|
#define strndupx(d, s, n, ap) do { \
|
|
const char *strdup_src = (s); \
|
|
char *strdup_dst = NULL; \
|
|
\
|
|
if (strdup_src != NULL) { \
|
|
size_t strndup_len = (n); \
|
|
strdup_dst = alloc(strndup_len + 1, (ap)); \
|
|
memcpy(strdup_dst, strdup_src, strndup_len); \
|
|
strdup_dst[strndup_len] = '\0'; \
|
|
} \
|
|
(d) = strdup_dst; \
|
|
} while (/* CONSTCOND */ 0)
|
|
#endif
|
|
|
|
#if HAVE_STRCASESTR
|
|
#define stristr(b,l) ((const char *)strcasestr((b), (l)))
|
|
#endif
|
|
|
|
#ifdef MKSH_SMALL
|
|
#ifndef MKSH_CONSERVATIVE_FDS
|
|
#define MKSH_CONSERVATIVE_FDS /* defined */
|
|
#endif
|
|
#ifndef MKSH_NOPWNAM
|
|
#define MKSH_NOPWNAM /* defined */
|
|
#endif
|
|
#ifndef MKSH_S_NOVI
|
|
#define MKSH_S_NOVI 1
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef MKSH_S_NOVI
|
|
#define MKSH_S_NOVI 0
|
|
#endif
|
|
|
|
/*
|
|
* simple grouping allocator
|
|
*/
|
|
|
|
/* 1. internal structure */
|
|
struct lalloc {
|
|
struct lalloc *next;
|
|
};
|
|
|
|
/* 2. sizes */
|
|
#define ALLOC_ITEM struct lalloc
|
|
#define ALLOC_SIZE (sizeof(ALLOC_ITEM))
|
|
|
|
/* 3. group structure (only the same for lalloc.c) */
|
|
typedef struct lalloc Area;
|
|
|
|
|
|
EXTERN Area aperm; /* permanent object space */
|
|
#define APERM &aperm
|
|
#define ATEMP &e->area
|
|
|
|
/*
|
|
* flags (the order of these enums MUST match the order in misc.c(options[]))
|
|
*/
|
|
enum sh_flag {
|
|
#define SHFLAGS_ENUMS
|
|
#include "sh_flags.h"
|
|
FNFLAGS /* (place holder: how many flags are there) */
|
|
};
|
|
|
|
#define Flag(f) (kshstate_v.shell_flags_[(int)(f)])
|
|
#define UTFMODE Flag(FUNICODE)
|
|
|
|
/*
|
|
* parsing & execution environment
|
|
*/
|
|
extern struct env {
|
|
ALLOC_ITEM __alloc_i; /* internal, do not touch */
|
|
Area area; /* temporary allocation area */
|
|
struct env *oenv; /* link to previous environment */
|
|
struct block *loc; /* local variables and functions */
|
|
short *savefd; /* original redirected fds */
|
|
struct temp *temps; /* temp files */
|
|
sigjmp_buf jbuf; /* long jump back to env creator */
|
|
short type; /* environment type - see below */
|
|
short flags; /* EF_* */
|
|
} *e;
|
|
|
|
/* struct env.type values */
|
|
#define E_NONE 0 /* dummy environment */
|
|
#define E_PARSE 1 /* parsing command # */
|
|
#define E_FUNC 2 /* executing function # */
|
|
#define E_INCL 3 /* including a file via . # */
|
|
#define E_EXEC 4 /* executing command tree */
|
|
#define E_LOOP 5 /* executing for/while # */
|
|
#define E_ERRH 6 /* general error handler # */
|
|
/* # indicates env has valid jbuf (see unwind()) */
|
|
|
|
/* struct env.flag values */
|
|
#define EF_FUNC_PARSE BIT(0) /* function being parsed */
|
|
#define EF_BRKCONT_PASS BIT(1) /* set if E_LOOP must pass break/continue on */
|
|
#define EF_FAKE_SIGDIE BIT(2) /* hack to get info from unwind to quitenv */
|
|
|
|
/* Do breaks/continues stop at env type e? */
|
|
#define STOP_BRKCONT(t) ((t) == E_NONE || (t) == E_PARSE \
|
|
|| (t) == E_FUNC || (t) == E_INCL)
|
|
/* Do returns stop at env type e? */
|
|
#define STOP_RETURN(t) ((t) == E_FUNC || (t) == E_INCL)
|
|
|
|
/* values for siglongjmp(e->jbuf, 0) */
|
|
#define LRETURN 1 /* return statement */
|
|
#define LEXIT 2 /* exit statement */
|
|
#define LERROR 3 /* errorf() called */
|
|
#define LLEAVE 4 /* untrappable exit/error */
|
|
#define LINTR 5 /* ^C noticed */
|
|
#define LBREAK 6 /* break statement */
|
|
#define LCONTIN 7 /* continue statement */
|
|
#define LSHELL 8 /* return to interactive shell() */
|
|
#define LAEXPR 9 /* error in arithmetic expression */
|
|
|
|
/*
|
|
* some kind of global shell state, for change_random() mostly
|
|
*/
|
|
|
|
EXTERN struct mksh_kshstate_v {
|
|
/* for change_random */
|
|
struct timeval cr_tv; /* timestamp */
|
|
const void *cr_dp; /* argument address */
|
|
size_t cr_dsz; /* argument length */
|
|
uint32_t lcg_state_; /* previous LCG state */
|
|
/* global state */
|
|
pid_t procpid_; /* PID of executing process */
|
|
int exstat_; /* exit status */
|
|
int subst_exstat_; /* exit status of last $(..)/`..` */
|
|
struct env env_; /* top-level parsing & execution env. */
|
|
uint8_t shell_flags_[FNFLAGS];
|
|
} kshstate_v;
|
|
EXTERN struct mksh_kshstate_f {
|
|
const char *kshname_; /* $0 */
|
|
pid_t kshpid_; /* $$, shell PID */
|
|
pid_t kshpgrp_; /* process group of shell */
|
|
uid_t ksheuid_; /* effective UID of shell */
|
|
pid_t kshppid_; /* PID of parent of shell */
|
|
uint32_t h; /* some kind of hash */
|
|
} kshstate_f;
|
|
#define kshname kshstate_f.kshname_
|
|
#define kshpid kshstate_f.kshpid_
|
|
#define procpid kshstate_v.procpid_
|
|
#define kshpgrp kshstate_f.kshpgrp_
|
|
#define ksheuid kshstate_f.ksheuid_
|
|
#define kshppid kshstate_f.kshppid_
|
|
#define exstat kshstate_v.exstat_
|
|
#define subst_exstat kshstate_v.subst_exstat_
|
|
|
|
/* evil hack: return hash(kshstate_f concat (kshstate_f'.h:=hash(arg))) */
|
|
uint32_t evilhash(const char *);
|
|
|
|
|
|
/* option processing */
|
|
#define OF_CMDLINE 0x01 /* command line */
|
|
#define OF_SET 0x02 /* set builtin */
|
|
#define OF_SPECIAL 0x04 /* a special variable changing */
|
|
#define OF_INTERNAL 0x08 /* set internally by shell */
|
|
#define OF_FIRSTTIME 0x10 /* as early as possible, once */
|
|
#define OF_ANY (OF_CMDLINE | OF_SET | OF_SPECIAL | OF_INTERNAL)
|
|
|
|
struct shoption {
|
|
const char *name; /* long name of option */
|
|
char c; /* character flag (if any) */
|
|
unsigned char flags; /* OF_* */
|
|
};
|
|
extern const struct shoption options[];
|
|
|
|
/* null value for variable; comparision pointer for unset */
|
|
EXTERN char null[] I__("");
|
|
/* helpers for string pooling */
|
|
#define T_synerr "syntax error"
|
|
EXTERN const char r_fc_e_[] I__("r=fc -e -");
|
|
#define fc_e_ (r_fc_e_ + 2) /* "fc -e -" */
|
|
#define fc_e_n 7 /* strlen(fc_e_) */
|
|
EXTERN const char T_local_typeset[] I__("local=typeset");
|
|
#define T__typeset (T_local_typeset + 5) /* "=typeset" */
|
|
#define T_typeset (T_local_typeset + 6) /* "typeset" */
|
|
|
|
enum temp_type {
|
|
TT_HEREDOC_EXP, /* expanded heredoc */
|
|
TT_HIST_EDIT /* temp file used for history editing (fc -e) */
|
|
};
|
|
typedef enum temp_type Temp_type;
|
|
/* temp/heredoc files. The file is removed when the struct is freed. */
|
|
struct temp {
|
|
struct temp *next;
|
|
struct shf *shf;
|
|
char *name;
|
|
int pid; /* pid of process parsed here-doc */
|
|
Temp_type type;
|
|
};
|
|
|
|
/*
|
|
* stdio and our IO routines
|
|
*/
|
|
|
|
#define shl_spare (&shf_iob[0]) /* for c_read()/c_print() */
|
|
#define shl_stdout (&shf_iob[1])
|
|
#define shl_out (&shf_iob[2])
|
|
EXTERN int shl_stdout_ok;
|
|
|
|
/*
|
|
* trap handlers
|
|
*/
|
|
typedef struct trap {
|
|
const char *name; /* short name */
|
|
const char *mess; /* descriptive name */
|
|
char *trap; /* trap command */
|
|
sig_t cursig; /* current handler (valid if TF_ORIG_* set) */
|
|
sig_t shtrap; /* shell signal handler */
|
|
int signal; /* signal number */
|
|
int flags; /* TF_* */
|
|
volatile sig_atomic_t set; /* trap pending */
|
|
} Trap;
|
|
|
|
/* values for Trap.flags */
|
|
#define TF_SHELL_USES BIT(0) /* shell uses signal, user can't change */
|
|
#define TF_USER_SET BIT(1) /* user has (tried to) set trap */
|
|
#define TF_ORIG_IGN BIT(2) /* original action was SIG_IGN */
|
|
#define TF_ORIG_DFL BIT(3) /* original action was SIG_DFL */
|
|
#define TF_EXEC_IGN BIT(4) /* restore SIG_IGN just before exec */
|
|
#define TF_EXEC_DFL BIT(5) /* restore SIG_DFL just before exec */
|
|
#define TF_DFL_INTR BIT(6) /* when received, default action is LINTR */
|
|
#define TF_TTY_INTR BIT(7) /* tty generated signal (see j_waitj) */
|
|
#define TF_CHANGED BIT(8) /* used by runtrap() to detect trap changes */
|
|
#define TF_FATAL BIT(9) /* causes termination if not trapped */
|
|
|
|
/* values for setsig()/setexecsig() flags argument */
|
|
#define SS_RESTORE_MASK 0x3 /* how to restore a signal before an exec() */
|
|
#define SS_RESTORE_CURR 0 /* leave current handler in place */
|
|
#define SS_RESTORE_ORIG 1 /* restore original handler */
|
|
#define SS_RESTORE_DFL 2 /* restore to SIG_DFL */
|
|
#define SS_RESTORE_IGN 3 /* restore to SIG_IGN */
|
|
#define SS_FORCE BIT(3) /* set signal even if original signal ignored */
|
|
#define SS_USER BIT(4) /* user is doing the set (ie, trap command) */
|
|
#define SS_SHTRAP BIT(5) /* trap for internal use (ALRM, CHLD, WINCH) */
|
|
|
|
#define SIGEXIT_ 0 /* for trap EXIT */
|
|
#define SIGERR_ NSIG /* for trap ERR */
|
|
|
|
EXTERN volatile sig_atomic_t trap; /* traps pending? */
|
|
EXTERN volatile sig_atomic_t intrsig; /* pending trap interrupts command */
|
|
EXTERN volatile sig_atomic_t fatal_trap;/* received a fatal signal */
|
|
extern Trap sigtraps[NSIG+1];
|
|
|
|
/* got_winch = 1 when needing to re-adjust the window size */
|
|
#ifdef SIGWINCH
|
|
EXTERN volatile sig_atomic_t got_winch I__(1);
|
|
#else
|
|
#define got_winch true
|
|
#endif
|
|
|
|
/*
|
|
* TMOUT support
|
|
*/
|
|
/* values for ksh_tmout_state */
|
|
enum tmout_enum {
|
|
TMOUT_EXECUTING = 0, /* executing commands */
|
|
TMOUT_READING, /* waiting for input */
|
|
TMOUT_LEAVING /* have timed out */
|
|
};
|
|
EXTERN unsigned int ksh_tmout;
|
|
EXTERN enum tmout_enum ksh_tmout_state I__(TMOUT_EXECUTING);
|
|
|
|
/* For "You have stopped jobs" message */
|
|
EXTERN int really_exit;
|
|
|
|
/*
|
|
* fast character classes
|
|
*/
|
|
#define C_ALPHA BIT(0) /* a-z_A-Z */
|
|
#define C_DIGIT BIT(1) /* 0-9 */
|
|
#define C_LEX1 BIT(2) /* \t \n\0|&;<>() */
|
|
#define C_VAR1 BIT(3) /* *@#!$-? */
|
|
#define C_IFSWS BIT(4) /* \t \n (IFS white space) */
|
|
#define C_SUBOP1 BIT(5) /* "=-+?" */
|
|
#define C_QUOTE BIT(6) /* \t\n "#$&'()*;<=>?[\]`| (needing quoting) */
|
|
#define C_IFS BIT(7) /* $IFS */
|
|
#define C_SUBOP2 BIT(8) /* "#%" (magic, see below) */
|
|
|
|
extern unsigned char chtypes[];
|
|
|
|
#define ctype(c, t) !!( ((t) == C_SUBOP2) ? \
|
|
(((c) == '#' || (c) == '%') ? 1 : 0) : \
|
|
(chtypes[(unsigned char)(c)]&(t)) )
|
|
#define ksh_isalphx(c) ctype((c), C_ALPHA)
|
|
#define ksh_isalnux(c) ctype((c), C_ALPHA | C_DIGIT)
|
|
|
|
EXTERN int ifs0 I__(' '); /* for "$*" */
|
|
|
|
/* Argument parsing for built-in commands and getopts command */
|
|
|
|
/* Values for Getopt.flags */
|
|
#define GF_ERROR BIT(0) /* call errorf() if there is an error */
|
|
#define GF_PLUSOPT BIT(1) /* allow +c as an option */
|
|
#define GF_NONAME BIT(2) /* don't print argv[0] in errors */
|
|
|
|
/* Values for Getopt.info */
|
|
#define GI_MINUS BIT(0) /* an option started with -... */
|
|
#define GI_PLUS BIT(1) /* an option started with +... */
|
|
#define GI_MINUSMINUS BIT(2) /* arguments were ended with -- */
|
|
|
|
typedef struct {
|
|
const char *optarg;
|
|
int optind;
|
|
int uoptind;/* what user sees in $OPTIND */
|
|
int flags; /* see GF_* */
|
|
int info; /* see GI_* */
|
|
unsigned int p; /* 0 or index into argv[optind - 1] */
|
|
char buf[2]; /* for bad option OPTARG value */
|
|
} Getopt;
|
|
|
|
EXTERN Getopt builtin_opt; /* for shell builtin commands */
|
|
EXTERN Getopt user_opt; /* parsing state for getopts builtin command */
|
|
|
|
/* This for co-processes */
|
|
|
|
typedef int32_t Coproc_id; /* something that won't (realisticly) wrap */
|
|
struct coproc {
|
|
void *job; /* 0 or job of co-process using input pipe */
|
|
int read; /* pipe from co-process's stdout */
|
|
int readw; /* other side of read (saved temporarily) */
|
|
int write; /* pipe to co-process's stdin */
|
|
int njobs; /* number of live jobs using output pipe */
|
|
Coproc_id id; /* id of current output pipe */
|
|
};
|
|
EXTERN struct coproc coproc;
|
|
|
|
/* Used in jobs.c and by coprocess stuff in exec.c */
|
|
EXTERN sigset_t sm_default, sm_sigchld;
|
|
|
|
/* name of called builtin function (used by error functions) */
|
|
EXTERN const char *builtin_argv0;
|
|
EXTERN Tflag builtin_flag; /* flags of called builtin (SPEC_BI, etc.) */
|
|
|
|
/* current working directory, and size of memory allocated for same */
|
|
EXTERN char *current_wd;
|
|
EXTERN size_t current_wd_size;
|
|
|
|
/* Minimum required space to work with on a line - if the prompt leaves less
|
|
* space than this on a line, the prompt is truncated.
|
|
*/
|
|
#define MIN_EDIT_SPACE 7
|
|
/* Minimum allowed value for x_cols: 2 for prompt, 3 for " < " at end of line
|
|
*/
|
|
#define MIN_COLS (2 + MIN_EDIT_SPACE + 3)
|
|
#define MIN_LINS 3
|
|
EXTERN mksh_ari_t x_cols I__(80); /* tty columns */
|
|
EXTERN mksh_ari_t x_lins I__(-1); /* tty lines */
|
|
|
|
/* These to avoid bracket matching problems */
|
|
#define OPAREN '('
|
|
#define CPAREN ')'
|
|
#define OBRACK '['
|
|
#define CBRACK ']'
|
|
#define OBRACE '{'
|
|
#define CBRACE '}'
|
|
|
|
/* Determine the location of the system (common) profile */
|
|
#define KSH_SYSTEM_PROFILE "/etc/profile"
|
|
|
|
/* Used by v_evaluate() and setstr() to control action when error occurs */
|
|
#define KSH_UNWIND_ERROR 0 /* unwind the stack (longjmp) */
|
|
#define KSH_RETURN_ERROR 1 /* return 1/0 for success/failure */
|
|
|
|
/*
|
|
* Shell file I/O routines
|
|
*/
|
|
|
|
#define SHF_BSIZE 512
|
|
|
|
#define shf_fileno(shf) ((shf)->fd)
|
|
#define shf_setfileno(shf,nfd) ((shf)->fd = (nfd))
|
|
#ifdef MKSH_SMALL
|
|
int shf_getc(struct shf *);
|
|
int shf_putc(int, struct shf *);
|
|
#else
|
|
#define shf_getc(shf) ((shf)->rnleft > 0 ? \
|
|
(shf)->rnleft--, *(shf)->rp++ : \
|
|
shf_getchar(shf))
|
|
#define shf_putc(c, shf) ((shf)->wnleft == 0 ? \
|
|
shf_putchar((c), (shf)) : \
|
|
((shf)->wnleft--, *(shf)->wp++ = (c)))
|
|
#endif
|
|
#define shf_eof(shf) ((shf)->flags & SHF_EOF)
|
|
#define shf_error(shf) ((shf)->flags & SHF_ERROR)
|
|
#define shf_errno(shf) ((shf)->errno_)
|
|
#define shf_clearerr(shf) ((shf)->flags &= ~(SHF_EOF | SHF_ERROR))
|
|
|
|
/* Flags passed to shf_*open() */
|
|
#define SHF_RD 0x0001
|
|
#define SHF_WR 0x0002
|
|
#define SHF_RDWR (SHF_RD|SHF_WR)
|
|
#define SHF_ACCMODE 0x0003 /* mask */
|
|
#define SHF_GETFL 0x0004 /* use fcntl() to figure RD/WR flags */
|
|
#define SHF_UNBUF 0x0008 /* unbuffered I/O */
|
|
#define SHF_CLEXEC 0x0010 /* set close on exec flag */
|
|
#define SHF_MAPHI 0x0020 /* make fd > FDBASE (and close orig)
|
|
* (shf_open() only) */
|
|
#define SHF_DYNAMIC 0x0040 /* string: increase buffer as needed */
|
|
#define SHF_INTERRUPT 0x0080 /* EINTR in read/write causes error */
|
|
/* Flags used internally */
|
|
#define SHF_STRING 0x0100 /* a string, not a file */
|
|
#define SHF_ALLOCS 0x0200 /* shf and shf->buf were alloc()ed */
|
|
#define SHF_ALLOCB 0x0400 /* shf->buf was alloc()ed */
|
|
#define SHF_ERROR 0x0800 /* read()/write() error */
|
|
#define SHF_EOF 0x1000 /* read eof (sticky) */
|
|
#define SHF_READING 0x2000 /* currently reading: rnleft,rp valid */
|
|
#define SHF_WRITING 0x4000 /* currently writing: wnleft,wp valid */
|
|
|
|
|
|
struct shf {
|
|
Area *areap; /* area shf/buf were allocated in */
|
|
unsigned char *rp; /* read: current position in buffer */
|
|
unsigned char *wp; /* write: current position in buffer */
|
|
unsigned char *buf; /* buffer */
|
|
int flags; /* see SHF_* */
|
|
int rbsize; /* size of buffer (1 if SHF_UNBUF) */
|
|
int rnleft; /* read: how much data left in buffer */
|
|
int wbsize; /* size of buffer (0 if SHF_UNBUF) */
|
|
int wnleft; /* write: how much space left in buffer */
|
|
int fd; /* file descriptor */
|
|
int errno_; /* saved value of errno after error */
|
|
int bsize; /* actual size of buf */
|
|
};
|
|
|
|
extern struct shf shf_iob[];
|
|
|
|
struct table {
|
|
Area *areap; /* area to allocate entries */
|
|
struct tbl **tbls; /* hashed table items */
|
|
short size, nfree; /* hash size (always 2^^n), free entries */
|
|
};
|
|
|
|
struct tbl { /* table item */
|
|
Area *areap; /* area to allocate from */
|
|
union {
|
|
char *s; /* string */
|
|
mksh_ari_t i; /* integer */
|
|
mksh_uari_t u; /* unsigned integer */
|
|
int (*f)(const char **);/* int function */
|
|
struct op *t; /* "function" tree */
|
|
} val; /* value */
|
|
union {
|
|
struct tbl *array; /* array values */
|
|
const char *fpath; /* temporary path to undef function */
|
|
} u;
|
|
union {
|
|
int field; /* field with for -L/-R/-Z */
|
|
int errno_; /* CEXEC/CTALIAS */
|
|
} u2;
|
|
int type; /* command type (see below), base (if INTEGER),
|
|
* or offset from val.s of value (if EXPORT) */
|
|
Tflag flag; /* flags */
|
|
union {
|
|
uint32_t hval; /* hash(name) */
|
|
uint32_t index; /* index for an array */
|
|
} ua;
|
|
char name[4]; /* name -- variable length */
|
|
};
|
|
|
|
/* common flag bits */
|
|
#define ALLOC BIT(0) /* val.s has been allocated */
|
|
#define DEFINED BIT(1) /* is defined in block */
|
|
#define ISSET BIT(2) /* has value, vp->val.[si] */
|
|
#define EXPORT BIT(3) /* exported variable/function */
|
|
#define TRACE BIT(4) /* var: user flagged, func: execution tracing */
|
|
/* (start non-common flags at 8) */
|
|
/* flag bits used for variables */
|
|
#define SPECIAL BIT(8) /* PATH, IFS, SECONDS, etc */
|
|
#define INTEGER BIT(9) /* val.i contains integer value */
|
|
#define RDONLY BIT(10) /* read-only variable */
|
|
#define LOCAL BIT(11) /* for local typeset() */
|
|
#define ARRAY BIT(13) /* array */
|
|
#define LJUST BIT(14) /* left justify */
|
|
#define RJUST BIT(15) /* right justify */
|
|
#define ZEROFIL BIT(16) /* 0 filled if RJUSTIFY, strip 0s if LJUSTIFY */
|
|
#define LCASEV BIT(17) /* convert to lower case */
|
|
#define UCASEV_AL BIT(18) /* convert to upper case / autoload function */
|
|
#define INT_U BIT(19) /* unsigned integer */
|
|
#define INT_L BIT(20) /* long integer (no-op) */
|
|
#define IMPORT BIT(21) /* flag to typeset(): no arrays, must have = */
|
|
#define LOCAL_COPY BIT(22) /* with LOCAL - copy attrs from existing var */
|
|
#define EXPRINEVAL BIT(23) /* contents currently being evaluated */
|
|
#define EXPRLVALUE BIT(24) /* useable as lvalue (temp flag) */
|
|
#define AINDEX BIT(25) /* array index >0 = ua.index filled in */
|
|
#define ASSOC BIT(26) /* ARRAY ? associative : reference */
|
|
/* flag bits used for taliases/builtins/aliases/keywords/functions */
|
|
#define KEEPASN BIT(8) /* keep command assignments (eg, var=x cmd) */
|
|
#define FINUSE BIT(9) /* function being executed */
|
|
#define FDELETE BIT(10) /* function deleted while it was executing */
|
|
#define FKSH BIT(11) /* function defined with function x (vs x()) */
|
|
#define SPEC_BI BIT(12) /* a POSIX special builtin */
|
|
#define REG_BI BIT(13) /* a POSIX regular builtin */
|
|
/* Attributes that can be set by the user (used to decide if an unset param
|
|
* should be repoted by set/typeset). Does not include ARRAY or LOCAL.
|
|
*/
|
|
#define USERATTRIB (EXPORT|INTEGER|RDONLY|LJUST|RJUST|ZEROFIL|\
|
|
LCASEV|UCASEV_AL|INT_U|INT_L)
|
|
|
|
#define arrayindex(vp) ((unsigned long)((vp)->flag & AINDEX ? \
|
|
(vp)->ua.index : 0))
|
|
|
|
/* command types */
|
|
#define CNONE 0 /* undefined */
|
|
#define CSHELL 1 /* built-in */
|
|
#define CFUNC 2 /* function */
|
|
#define CEXEC 4 /* executable command */
|
|
#define CALIAS 5 /* alias */
|
|
#define CKEYWD 6 /* keyword */
|
|
#define CTALIAS 7 /* tracked alias */
|
|
|
|
/* Flags for findcom()/comexec() */
|
|
#define FC_SPECBI BIT(0) /* special builtin */
|
|
#define FC_FUNC BIT(1) /* function builtin */
|
|
#define FC_REGBI BIT(2) /* regular builtin */
|
|
#define FC_UNREGBI BIT(3) /* un-regular builtin (!special,!regular) */
|
|
#define FC_BI (FC_SPECBI|FC_REGBI|FC_UNREGBI)
|
|
#define FC_PATH BIT(4) /* do path search */
|
|
#define FC_DEFPATH BIT(5) /* use default path in path search */
|
|
|
|
|
|
#define AF_ARGV_ALLOC 0x1 /* argv[] array allocated */
|
|
#define AF_ARGS_ALLOCED 0x2 /* argument strings allocated */
|
|
#define AI_ARGV(a, i) ((i) == 0 ? (a).argv[0] : (a).argv[(i) - (a).skip])
|
|
#define AI_ARGC(a) ((a).argc_ - (a).skip)
|
|
|
|
/* Argument info. Used for $#, $* for shell, functions, includes, etc. */
|
|
struct arg_info {
|
|
const char **argv;
|
|
int flags; /* AF_* */
|
|
int argc_;
|
|
int skip; /* first arg is argv[0], second is argv[1 + skip] */
|
|
};
|
|
|
|
/*
|
|
* activation record for function blocks
|
|
*/
|
|
struct block {
|
|
Area area; /* area to allocate things */
|
|
const char **argv;
|
|
char *error; /* error handler */
|
|
char *exit; /* exit handler */
|
|
struct block *next; /* enclosing block */
|
|
struct table vars; /* local variables */
|
|
struct table funs; /* local functions */
|
|
Getopt getopts_state;
|
|
int argc;
|
|
int flags; /* see BF_* */
|
|
};
|
|
|
|
/* Values for struct block.flags */
|
|
#define BF_DOGETOPTS BIT(0) /* save/restore getopts state */
|
|
|
|
/*
|
|
* Used by ktwalk() and ktnext() routines.
|
|
*/
|
|
struct tstate {
|
|
struct tbl **next;
|
|
ssize_t left;
|
|
};
|
|
|
|
EXTERN struct table taliases; /* tracked aliases */
|
|
EXTERN struct table builtins; /* built-in commands */
|
|
EXTERN struct table aliases; /* aliases */
|
|
EXTERN struct table keywords; /* keywords */
|
|
#ifndef MKSH_NOPWNAM
|
|
EXTERN struct table homedirs; /* homedir() cache */
|
|
#endif
|
|
|
|
struct builtin {
|
|
const char *name;
|
|
int (*func)(const char **);
|
|
};
|
|
|
|
extern const struct builtin mkshbuiltins[];
|
|
|
|
/* values for set_prompt() */
|
|
#define PS1 0 /* command */
|
|
#define PS2 1 /* command continuation */
|
|
|
|
EXTERN char *path; /* copy of either PATH or def_path */
|
|
EXTERN const char *def_path; /* path to use if PATH not set */
|
|
EXTERN char *tmpdir; /* TMPDIR value */
|
|
EXTERN const char *prompt;
|
|
EXTERN int cur_prompt; /* PS1 or PS2 */
|
|
EXTERN int current_lineno; /* LINENO value */
|
|
|
|
#define NOBLOCK ((struct op *)NULL)
|
|
#define NOWORD ((char *)NULL)
|
|
#define NOWORDS ((char **)NULL)
|
|
|
|
/*
|
|
* Description of a command or an operation on commands.
|
|
*/
|
|
struct op {
|
|
const char **args; /* arguments to a command */
|
|
char **vars; /* variable assignments */
|
|
struct ioword **ioact; /* IO actions (eg, < > >>) */
|
|
struct op *left, *right; /* descendents */
|
|
char *str; /* word for case; identifier for for,
|
|
* select, and functions;
|
|
* path to execute for TEXEC;
|
|
* time hook for TCOM.
|
|
*/
|
|
int lineno; /* TCOM/TFUNC: LINENO for this */
|
|
short type; /* operation type, see below */
|
|
union { /* WARNING: newtp(), tcopy() use evalflags = 0 to clear union */
|
|
short evalflags; /* TCOM: arg expansion eval() flags */
|
|
short ksh_func; /* TFUNC: function x (vs x()) */
|
|
} u;
|
|
};
|
|
|
|
/* Tree.type values */
|
|
#define TEOF 0
|
|
#define TCOM 1 /* command */
|
|
#define TPAREN 2 /* (c-list) */
|
|
#define TPIPE 3 /* a | b */
|
|
#define TLIST 4 /* a ; b */
|
|
#define TOR 5 /* || */
|
|
#define TAND 6 /* && */
|
|
#define TBANG 7 /* ! */
|
|
#define TDBRACKET 8 /* [[ .. ]] */
|
|
#define TFOR 9
|
|
#define TSELECT 10
|
|
#define TCASE 11
|
|
#define TIF 12
|
|
#define TWHILE 13
|
|
#define TUNTIL 14
|
|
#define TELIF 15
|
|
#define TPAT 16 /* pattern in case */
|
|
#define TBRACE 17 /* {c-list} */
|
|
#define TASYNC 18 /* c & */
|
|
#define TFUNCT 19 /* function name { command; } */
|
|
#define TTIME 20 /* time pipeline */
|
|
#define TEXEC 21 /* fork/exec eval'd TCOM */
|
|
#define TCOPROC 22 /* coprocess |& */
|
|
|
|
/*
|
|
* prefix codes for words in command tree
|
|
*/
|
|
#define EOS 0 /* end of string */
|
|
#define CHAR 1 /* unquoted character */
|
|
#define QCHAR 2 /* quoted character */
|
|
#define COMSUB 3 /* $() substitution (0 terminated) */
|
|
#define EXPRSUB 4 /* $(()) substitution (0 terminated) */
|
|
#define OQUOTE 5 /* opening " or ' */
|
|
#define CQUOTE 6 /* closing " or ' */
|
|
#define OSUBST 7 /* opening ${ subst (followed by { or X) */
|
|
#define CSUBST 8 /* closing } of above (followed by } or X) */
|
|
#define OPAT 9 /* open pattern: *(, @(, etc. */
|
|
#define SPAT 10 /* separate pattern: | */
|
|
#define CPAT 11 /* close pattern: ) */
|
|
#define ADELIM 12 /* arbitrary delimiter: ${foo:2:3} ${foo/bar/baz} */
|
|
|
|
/*
|
|
* IO redirection
|
|
*/
|
|
struct ioword {
|
|
int unit; /* unit affected */
|
|
int flag; /* action (below) */
|
|
char *name; /* file name (unused if heredoc) */
|
|
char *delim; /* delimiter for <<,<<- */
|
|
char *heredoc;/* content of heredoc */
|
|
};
|
|
|
|
/* ioword.flag - type of redirection */
|
|
#define IOTYPE 0xF /* type: bits 0:3 */
|
|
#define IOREAD 0x1 /* < */
|
|
#define IOWRITE 0x2 /* > */
|
|
#define IORDWR 0x3 /* <>: todo */
|
|
#define IOHERE 0x4 /* << (here file) */
|
|
#define IOCAT 0x5 /* >> */
|
|
#define IODUP 0x6 /* <&/>& */
|
|
#define IOEVAL BIT(4) /* expand in << */
|
|
#define IOSKIP BIT(5) /* <<-, skip ^\t* */
|
|
#define IOCLOB BIT(6) /* >|, override -o noclobber */
|
|
#define IORDUP BIT(7) /* x<&y (as opposed to x>&y) */
|
|
#define IONAMEXP BIT(8) /* name has been expanded */
|
|
#define IOBASH BIT(9) /* &> etc. */
|
|
|
|
/* execute/exchild flags */
|
|
#define XEXEC BIT(0) /* execute without forking */
|
|
#define XFORK BIT(1) /* fork before executing */
|
|
#define XBGND BIT(2) /* command & */
|
|
#define XPIPEI BIT(3) /* input is pipe */
|
|
#define XPIPEO BIT(4) /* output is pipe */
|
|
#define XPIPE (XPIPEI|XPIPEO) /* member of pipe */
|
|
#define XXCOM BIT(5) /* `...` command */
|
|
#define XPCLOSE BIT(6) /* exchild: close close_fd in parent */
|
|
#define XCCLOSE BIT(7) /* exchild: close close_fd in child */
|
|
#define XERROK BIT(8) /* non-zero exit ok (for set -e) */
|
|
#define XCOPROC BIT(9) /* starting a co-process */
|
|
#define XTIME BIT(10) /* timing TCOM command */
|
|
|
|
/*
|
|
* flags to control expansion of words (assumed by t->evalflags to fit
|
|
* in a short)
|
|
*/
|
|
#define DOBLANK BIT(0) /* perform blank interpretation */
|
|
#define DOGLOB BIT(1) /* expand [?* */
|
|
#define DOPAT BIT(2) /* quote *?[ */
|
|
#define DOTILDE BIT(3) /* normal ~ expansion (first char) */
|
|
#define DONTRUNCOMMAND BIT(4) /* do not run $(command) things */
|
|
#define DOASNTILDE BIT(5) /* assignment ~ expansion (after =, :) */
|
|
#define DOBRACE_ BIT(6) /* used by expand(): do brace expansion */
|
|
#define DOMAGIC_ BIT(7) /* used by expand(): string contains MAGIC */
|
|
#define DOTEMP_ BIT(8) /* ditto : in word part of ${..[%#=?]..} */
|
|
#define DOVACHECK BIT(9) /* var assign check (for typeset, set, etc) */
|
|
#define DOMARKDIRS BIT(10) /* force markdirs behaviour */
|
|
|
|
/*
|
|
* The arguments of [[ .. ]] expressions are kept in t->args[] and flags
|
|
* indicating how the arguments have been munged are kept in t->vars[].
|
|
* The contents of t->vars[] are stuffed strings (so they can be treated
|
|
* like all other t->vars[]) in which the second character is the one that
|
|
* is examined. The DB_* defines are the values for these second characters.
|
|
*/
|
|
#define DB_NORM 1 /* normal argument */
|
|
#define DB_OR 2 /* || -> -o conversion */
|
|
#define DB_AND 3 /* && -> -a conversion */
|
|
#define DB_BE 4 /* an inserted -BE */
|
|
#define DB_PAT 5 /* a pattern argument */
|
|
|
|
#define X_EXTRA 8 /* this many extra bytes in X string */
|
|
|
|
typedef struct XString {
|
|
char *end, *beg; /* end, begin of string */
|
|
size_t len; /* length */
|
|
Area *areap; /* area to allocate/free from */
|
|
} XString;
|
|
|
|
typedef char *XStringP;
|
|
|
|
/* initialise expandable string */
|
|
#define XinitN(xs, length, area) do { \
|
|
(xs).len = (length); \
|
|
(xs).areap = (area); \
|
|
(xs).beg = alloc((xs).len + X_EXTRA, (xs).areap); \
|
|
(xs).end = (xs).beg + (xs).len; \
|
|
} while (/* CONSTCOND */ 0)
|
|
#define Xinit(xs, xp, length, area) do { \
|
|
XinitN((xs), (length), (area)); \
|
|
(xp) = (xs).beg; \
|
|
} while (/* CONSTCOND */ 0)
|
|
|
|
/* stuff char into string */
|
|
#define Xput(xs, xp, c) (*xp++ = (c))
|
|
|
|
/* check if there are at least n bytes left */
|
|
#define XcheckN(xs, xp, n) do { \
|
|
int more = ((xp) + (n)) - (xs).end; \
|
|
if (more > 0) \
|
|
(xp) = Xcheck_grow_(&(xs), (xp), more); \
|
|
} while (/* CONSTCOND */ 0)
|
|
|
|
/* check for overflow, expand string */
|
|
#define Xcheck(xs, xp) XcheckN((xs), (xp), 1)
|
|
|
|
/* free string */
|
|
#define Xfree(xs, xp) afree((xs).beg, (xs).areap)
|
|
|
|
/* close, return string */
|
|
#define Xclose(xs, xp) aresize((xs).beg, (xp) - (xs).beg, (xs).areap)
|
|
|
|
/* begin of string */
|
|
#define Xstring(xs, xp) ((xs).beg)
|
|
|
|
#define Xnleft(xs, xp) ((xs).end - (xp)) /* may be less than 0 */
|
|
#define Xlength(xs, xp) ((xp) - (xs).beg)
|
|
#define Xsize(xs, xp) ((xs).end - (xs).beg)
|
|
#define Xsavepos(xs, xp) ((xp) - (xs).beg)
|
|
#define Xrestpos(xs, xp, n) ((xs).beg + (n))
|
|
|
|
char *Xcheck_grow_(XString *, const char *, unsigned int);
|
|
|
|
/*
|
|
* expandable vector of generic pointers
|
|
*/
|
|
|
|
typedef struct XPtrV {
|
|
void **cur; /* next avail pointer */
|
|
void **beg, **end; /* begin, end of vector */
|
|
} XPtrV;
|
|
|
|
#define XPinit(x, n) do { \
|
|
void **vp__; \
|
|
vp__ = alloc((n) * sizeof(void *), ATEMP); \
|
|
(x).cur = (x).beg = vp__; \
|
|
(x).end = vp__ + (n); \
|
|
} while (/* CONSTCOND */ 0)
|
|
|
|
#define XPput(x, p) do { \
|
|
if ((x).cur >= (x).end) { \
|
|
size_t n = XPsize(x); \
|
|
(x).beg = aresize((x).beg, \
|
|
n * 2 * sizeof(void *), ATEMP); \
|
|
(x).cur = (x).beg + n; \
|
|
(x).end = (x).cur + n; \
|
|
} \
|
|
*(x).cur++ = (p); \
|
|
} while (/* CONSTCOND */ 0)
|
|
|
|
#define XPptrv(x) ((x).beg)
|
|
#define XPsize(x) ((x).cur - (x).beg)
|
|
#define XPclose(x) aresize((x).beg, XPsize(x) * sizeof(void *), ATEMP)
|
|
#define XPfree(x) afree((x).beg, ATEMP)
|
|
|
|
#define IDENT 64
|
|
|
|
typedef struct source Source;
|
|
struct source {
|
|
const char *str; /* input pointer */
|
|
const char *start; /* start of current buffer */
|
|
union {
|
|
const char **strv; /* string [] */
|
|
struct shf *shf; /* shell file */
|
|
struct tbl *tblp; /* alias (SF_HASALIAS) */
|
|
char *freeme; /* also for SREREAD */
|
|
} u;
|
|
const char *file; /* input file name */
|
|
int type; /* input type */
|
|
int line; /* line number */
|
|
int errline; /* line the error occurred on (0 if not set) */
|
|
int flags; /* SF_* */
|
|
Area *areap;
|
|
Source *next; /* stacked source */
|
|
XString xs; /* input buffer */
|
|
char ugbuf[2]; /* buffer for ungetsc() (SREREAD) and
|
|
* alias (SALIAS) */
|
|
};
|
|
|
|
/* Source.type values */
|
|
#define SEOF 0 /* input EOF */
|
|
#define SFILE 1 /* file input */
|
|
#define SSTDIN 2 /* read stdin */
|
|
#define SSTRING 3 /* string */
|
|
#define SWSTR 4 /* string without \n */
|
|
#define SWORDS 5 /* string[] */
|
|
#define SWORDSEP 6 /* string[] separator */
|
|
#define SALIAS 7 /* alias expansion */
|
|
#define SREREAD 8 /* read ahead to be re-scanned */
|
|
|
|
/* Source.flags values */
|
|
#define SF_ECHO BIT(0) /* echo input to shlout */
|
|
#define SF_ALIAS BIT(1) /* faking space at end of alias */
|
|
#define SF_ALIASEND BIT(2) /* faking space at end of alias */
|
|
#define SF_TTY BIT(3) /* type == SSTDIN & it is a tty */
|
|
#define SF_FIRST BIT(4) /* initial state (to ignore UTF-8 BOM) */
|
|
#define SF_HASALIAS BIT(5) /* u.tblp valid (SALIAS, SEOF) */
|
|
|
|
typedef union {
|
|
int i;
|
|
char *cp;
|
|
char **wp;
|
|
struct op *o;
|
|
struct ioword *iop;
|
|
} YYSTYPE;
|
|
|
|
/* If something is added here, add it to tokentab[] in syn.c as well */
|
|
#define LWORD 256
|
|
#define LOGAND 257 /* && */
|
|
#define LOGOR 258 /* || */
|
|
#define BREAK 259 /* ;; */
|
|
#define IF 260
|
|
#define THEN 261
|
|
#define ELSE 262
|
|
#define ELIF 263
|
|
#define FI 264
|
|
#define CASE 265
|
|
#define ESAC 266
|
|
#define FOR 267
|
|
#define SELECT 268
|
|
#define WHILE 269
|
|
#define UNTIL 270
|
|
#define DO 271
|
|
#define DONE 272
|
|
#define IN 273
|
|
#define FUNCTION 274
|
|
#define TIME 275
|
|
#define REDIR 276
|
|
#define MDPAREN 277 /* (( )) */
|
|
#define BANG 278 /* ! */
|
|
#define DBRACKET 279 /* [[ .. ]] */
|
|
#define COPROC 280 /* |& */
|
|
#define YYERRCODE 300
|
|
|
|
/* flags to yylex */
|
|
#define CONTIN BIT(0) /* skip new lines to complete command */
|
|
#define ONEWORD BIT(1) /* single word for substitute() */
|
|
#define ALIAS BIT(2) /* recognise alias */
|
|
#define KEYWORD BIT(3) /* recognise keywords */
|
|
#define LETEXPR BIT(4) /* get expression inside (( )) */
|
|
#define VARASN BIT(5) /* check for var=word */
|
|
#define ARRAYVAR BIT(6) /* parse x[1 & 2] as one word */
|
|
#define ESACONLY BIT(7) /* only accept esac keyword */
|
|
#define CMDWORD BIT(8) /* parsing simple command (alias related) */
|
|
#define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
|
|
#define LQCHAR BIT(10) /* source string contains QCHAR */
|
|
#define HEREDOC BIT(11) /* parsing a here document */
|
|
#define LETARRAY BIT(12) /* copy expression inside =( ) */
|
|
|
|
#define HERES 10 /* max << in line */
|
|
|
|
#undef CTRL
|
|
#define CTRL(x) ((x) == '?' ? 0x7F : (x) & 0x1F) /* ASCII */
|
|
#define UNCTRL(x) ((x) ^ 0x40) /* ASCII */
|
|
|
|
EXTERN Source *source; /* yyparse/yylex source */
|
|
EXTERN YYSTYPE yylval; /* result from yylex */
|
|
EXTERN struct ioword *heres [HERES], **herep;
|
|
EXTERN char ident [IDENT+1];
|
|
|
|
#define HISTORYSIZE 500 /* size of saved history */
|
|
|
|
EXTERN char **history; /* saved commands */
|
|
EXTERN char **histptr; /* last history item */
|
|
EXTERN int histsize; /* history size */
|
|
|
|
/* user and system time of last j_waitjed job */
|
|
EXTERN struct timeval j_usrtime, j_systime;
|
|
|
|
/* lalloc.c */
|
|
void ainit(Area *);
|
|
void afreeall(Area *);
|
|
/* these cannot fail and can take NULL (not for ap) */
|
|
#define alloc(n, ap) aresize(NULL, (n), (ap))
|
|
void *aresize(void *, size_t, Area *);
|
|
void afree(void *, Area *); /* can take NULL */
|
|
/* edit.c */
|
|
#ifndef MKSH_SMALL
|
|
int x_bind(const char *, const char *, bool, bool);
|
|
#else
|
|
int x_bind(const char *, const char *, bool);
|
|
#endif
|
|
void x_init(void);
|
|
int x_read(char *, size_t);
|
|
/* eval.c */
|
|
char *substitute(const char *, int);
|
|
char **eval(const char **, int);
|
|
char *evalstr(const char *cp, int);
|
|
char *evalonestr(const char *cp, int);
|
|
char *debunk(char *, const char *, size_t);
|
|
void expand(const char *, XPtrV *, int);
|
|
int glob_str(char *, XPtrV *, int);
|
|
/* exec.c */
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int execute(struct op * volatile, volatile int, volatile int * volatile);
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int shcomexec(const char **);
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struct tbl *findfunc(const char *, uint32_t, bool);
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int define(const char *, struct op *);
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void builtin(const char *, int (*)(const char **));
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struct tbl *findcom(const char *, int);
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void flushcom(int);
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const char *search(const char *, const char *, int, int *);
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int search_access(const char *, int, int *);
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int pr_menu(const char * const *);
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int pr_list(char * const *);
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/* expr.c */
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int evaluate(const char *, mksh_ari_t *, int, bool);
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int v_evaluate(struct tbl *, const char *, volatile int, bool);
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/* UTF-8 stuff */
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size_t utf_mbtowc(unsigned int *, const char *);
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size_t utf_wctomb(char *, unsigned int);
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int utf_widthadj(const char *, const char **);
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int utf_mbswidth(const char *);
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const char *utf_skipcols(const char *, int);
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size_t utf_ptradj(const char *);
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int utf_wcwidth(unsigned int);
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/* funcs.c */
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int c_hash(const char **);
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int c_cd(const char **);
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int c_pwd(const char **);
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int c_print(const char **);
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#ifdef MKSH_PRINTF_BUILTIN
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int c_printf(const char **);
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#endif
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int c_whence(const char **);
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int c_command(const char **);
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int c_typeset(const char **);
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int c_alias(const char **);
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int c_unalias(const char **);
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int c_let(const char **);
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int c_jobs(const char **);
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#ifndef MKSH_UNEMPLOYED
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int c_fgbg(const char **);
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#endif
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int c_kill(const char **);
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void getopts_reset(int);
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int c_getopts(const char **);
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int c_bind(const char **);
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int c_label(const char **);
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int c_shift(const char **);
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int c_umask(const char **);
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int c_dot(const char **);
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int c_wait(const char **);
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int c_read(const char **);
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int c_eval(const char **);
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int c_trap(const char **);
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int c_brkcont(const char **);
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int c_exitreturn(const char **);
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int c_set(const char **);
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int c_unset(const char **);
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int c_ulimit(const char **);
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int c_times(const char **);
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int timex(struct op *, int, volatile int *);
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void timex_hook(struct op *, char ** volatile *);
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int c_exec(const char **);
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int c_builtin(const char **);
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int c_test(const char **);
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#if HAVE_MKNOD
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int c_mknod(const char **);
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#endif
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int c_realpath(const char **);
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int c_rename(const char **);
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/* histrap.c */
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void init_histvec(void);
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void hist_init(Source *);
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#if HAVE_PERSISTENT_HISTORY
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void hist_finish(void);
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#endif
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void histsave(int *, const char *, bool, bool);
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#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
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bool histsync(void);
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#endif
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int c_fc(const char **);
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void sethistsize(int);
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#if HAVE_PERSISTENT_HISTORY
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void sethistfile(const char *);
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#endif
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char **histpos(void);
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int histnum(int);
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int findhist(int, int, const char *, int);
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int findhistrel(const char *);
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char **hist_get_newest(bool);
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void inittraps(void);
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void alarm_init(void);
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Trap *gettrap(const char *, int);
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void trapsig(int);
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void intrcheck(void);
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int fatal_trap_check(void);
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int trap_pending(void);
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void runtraps(int intr);
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void runtrap(Trap *);
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void cleartraps(void);
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void restoresigs(void);
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void settrap(Trap *, const char *);
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int block_pipe(void);
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void restore_pipe(int);
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int setsig(Trap *, sig_t, int);
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void setexecsig(Trap *, int);
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/* jobs.c */
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void j_init(void);
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void j_exit(void);
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#ifndef MKSH_UNEMPLOYED
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void j_change(void);
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#endif
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int exchild(struct op *, int, volatile int *, int);
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void startlast(void);
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int waitlast(void);
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int waitfor(const char *, int *);
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int j_kill(const char *, int);
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#ifndef MKSH_UNEMPLOYED
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int j_resume(const char *, int);
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#endif
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int j_jobs(const char *, int, int);
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int j_njobs(void);
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void j_notify(void);
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pid_t j_async(void);
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int j_stopped_running(void);
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/* lex.c */
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int yylex(int);
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void yyerror(const char *, ...)
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MKSH_A_NORETURN
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MKSH_A_FORMAT(printf, 1, 2);
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Source *pushs(int, Area *);
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void set_prompt(int, Source *);
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void pprompt(const char *, int);
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int promptlen(const char *);
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/* main.c */
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int include(const char *, int, const char **, int);
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int command(const char *, int);
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int shell(Source *volatile, int volatile);
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void unwind(int) MKSH_A_NORETURN;
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void newenv(int);
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void quitenv(struct shf *);
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void cleanup_parents_env(void);
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void cleanup_proc_env(void);
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void errorf(const char *, ...)
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MKSH_A_NORETURN
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MKSH_A_FORMAT(printf, 1, 2);
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void warningf(bool, const char *, ...)
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MKSH_A_FORMAT(printf, 2, 3);
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void bi_errorf(const char *, ...)
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MKSH_A_FORMAT(printf, 1, 2);
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#define errorfz() errorf("\1")
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#define bi_errorfz() bi_errorf("\1")
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void internal_verrorf(const char *, va_list)
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MKSH_A_FORMAT(printf, 1, 0);
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void internal_errorf(const char *, ...)
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MKSH_A_NORETURN
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MKSH_A_FORMAT(printf, 1, 2);
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void internal_warningf(const char *, ...)
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MKSH_A_FORMAT(printf, 1, 2);
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void error_prefix(bool);
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void shellf(const char *, ...)
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MKSH_A_FORMAT(printf, 1, 2);
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void shprintf(const char *, ...)
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MKSH_A_FORMAT(printf, 1, 2);
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int can_seek(int);
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void initio(void);
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int ksh_dup2(int, int, bool);
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short savefd(int);
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void restfd(int, int);
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void openpipe(int *);
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void closepipe(int *);
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int check_fd(const char *, int, const char **);
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void coproc_init(void);
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void coproc_read_close(int);
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void coproc_readw_close(int);
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void coproc_write_close(int);
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int coproc_getfd(int, const char **);
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void coproc_cleanup(int);
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struct temp *maketemp(Area *, Temp_type, struct temp **);
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#define hash(s) oaathash_full((const uint8_t *)(s))
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uint32_t oaathash_full(register const uint8_t *);
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uint32_t hashmem(const void *, size_t);
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void ktinit(struct table *, Area *, size_t);
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struct tbl *ktsearch(struct table *, const char *, uint32_t);
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struct tbl *ktenter(struct table *, const char *, uint32_t);
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#define ktdelete(p) do { p->flag = 0; } while (/* CONSTCOND */ 0)
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void ktwalk(struct tstate *, struct table *);
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struct tbl *ktnext(struct tstate *);
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struct tbl **ktsort(struct table *);
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/* misc.c */
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void setctypes(const char *, int);
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void initctypes(void);
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size_t option(const char *);
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char *getoptions(void);
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void change_flag(enum sh_flag, int, unsigned int);
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int parse_args(const char **, int, bool *);
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int getn(const char *, int *);
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int bi_getn(const char *, int *);
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int gmatchx(const char *, const char *, bool);
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int has_globbing(const char *, const char *);
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const unsigned char *pat_scan(const unsigned char *, const unsigned char *, int);
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int xstrcmp(const void *, const void *);
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void ksh_getopt_reset(Getopt *, int);
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int ksh_getopt(const char **, Getopt *, const char *);
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void print_value_quoted(const char *);
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void print_columns(struct shf *, int,
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char *(*)(char *, int, int, const void *),
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const void *, int, int, bool);
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void strip_nuls(char *, int);
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int blocking_read(int, char *, int)
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MKSH_A_BOUNDED(buffer, 2, 3);
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int reset_nonblock(int);
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char *ksh_get_wd(size_t *);
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int make_path(const char *, const char *, char **, XString *, int *);
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void simplify_path(char *);
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void set_current_wd(char *);
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#ifdef MKSH_SMALL
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char *strdup_(const char *, Area *);
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char *strndup_(const char *, size_t, Area *);
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#endif
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int unbksl(bool, int (*)(void), void (*)(int));
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/* shf.c */
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struct shf *shf_open(const char *, int, int, int);
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struct shf *shf_fdopen(int, int, struct shf *);
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struct shf *shf_reopen(int, int, struct shf *);
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struct shf *shf_sopen(char *, int, int, struct shf *);
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int shf_close(struct shf *);
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int shf_fdclose(struct shf *);
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char *shf_sclose(struct shf *);
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int shf_flush(struct shf *);
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int shf_read(char *, int, struct shf *);
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char *shf_getse(char *, int, struct shf *);
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int shf_getchar(struct shf *s);
|
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int shf_ungetc(int, struct shf *);
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int shf_putchar(int, struct shf *);
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int shf_puts(const char *, struct shf *);
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int shf_write(const char *, int, struct shf *);
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int shf_fprintf(struct shf *, const char *, ...)
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MKSH_A_FORMAT(printf, 2, 3);
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int shf_snprintf(char *, int, const char *, ...)
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MKSH_A_FORMAT(printf, 3, 4)
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MKSH_A_BOUNDED(string, 1, 2);
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char *shf_smprintf(const char *, ...)
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MKSH_A_FORMAT(printf, 1, 2);
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int shf_vfprintf(struct shf *, const char *, va_list)
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MKSH_A_FORMAT(printf, 2, 0);
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/* syn.c */
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void initkeywords(void);
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struct op *compile(Source *);
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/* tree.c */
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int fptreef(struct shf *, int, const char *, ...);
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char *snptreef(char *, int, const char *, ...);
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struct op *tcopy(struct op *, Area *);
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char *wdcopy(const char *, Area *);
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const char *wdscan(const char *, int);
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char *wdstrip(const char *, bool, bool);
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void tfree(struct op *, Area *);
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/* var.c */
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void newblock(void);
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void popblock(void);
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void initvar(void);
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struct tbl *global(const char *);
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struct tbl *local(const char *, bool);
|
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char *str_val(struct tbl *);
|
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int setstr(struct tbl *, const char *, int);
|
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struct tbl *setint_v(struct tbl *, struct tbl *, bool);
|
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void setint(struct tbl *, mksh_ari_t);
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struct tbl *typeset(const char *, Tflag, Tflag, int, int)
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MKSH_A_NONNULL((nonnull (1)));
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void unset(struct tbl *, int);
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const char *skip_varname(const char *, int);
|
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const char *skip_wdvarname(const char *, int);
|
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int is_wdvarname(const char *, int);
|
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int is_wdvarassign(const char *);
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char **makenv(void);
|
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void change_random(const void *, size_t);
|
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void change_winsz(void);
|
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int array_ref_len(const char *);
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char *arrayname(const char *);
|
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mksh_uari_t set_array(const char *, bool, const char **);
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|
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enum Test_op {
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TO_NONOP = 0, /* non-operator */
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/* unary operators */
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TO_STNZE, TO_STZER, TO_OPTION,
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TO_FILAXST,
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TO_FILEXST,
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TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
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TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
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TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
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/* binary operators */
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TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
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TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT,
|
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/* not an operator */
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TO_NONNULL /* !TO_NONOP */
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};
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typedef enum Test_op Test_op;
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|
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/* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
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enum Test_meta {
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TM_OR, /* -o or || */
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TM_AND, /* -a or && */
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TM_NOT, /* ! */
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TM_OPAREN, /* ( */
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TM_CPAREN, /* ) */
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TM_UNOP, /* unary operator */
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TM_BINOP, /* binary operator */
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TM_END /* end of input */
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};
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typedef enum Test_meta Test_meta;
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|
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#define TEF_ERROR BIT(0) /* set if we've hit an error */
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#define TEF_DBRACKET BIT(1) /* set if [[ .. ]] test */
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|
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typedef struct test_env {
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union {
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const char **wp;/* used by ptest_* */
|
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XPtrV *av; /* used by dbtestp_* */
|
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} pos;
|
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const char **wp_end; /* used by ptest_* */
|
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Test_op (*isa)(struct test_env *, Test_meta);
|
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const char *(*getopnd) (struct test_env *, Test_op, bool);
|
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int (*eval)(struct test_env *, Test_op, const char *, const char *, bool);
|
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void (*error)(struct test_env *, int, const char *);
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int flags; /* TEF_* */
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} Test_env;
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|
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extern const char *const dbtest_tokens[];
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|
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Test_op test_isop(Test_meta, const char *);
|
|
int test_eval(Test_env *, Test_op, const char *, const char *, bool);
|
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int test_parse(Test_env *);
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|
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EXTERN int tty_fd I__(-1); /* dup'd tty file descriptor */
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EXTERN int tty_devtty; /* true if tty_fd is from /dev/tty */
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EXTERN struct termios tty_state; /* saved tty state */
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|
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extern void tty_init(bool, bool);
|
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extern void tty_close(void);
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|
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/* be sure not to interfere with anyone else's idea about EXTERN */
|
|
#ifdef EXTERN_DEFINED
|
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# undef EXTERN_DEFINED
|
|
# undef EXTERN
|
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#endif
|
|
#undef I__
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|
|
#endif /* !MKSH_INCLUDES_ONLY */
|