2001-09-05 17:49:32 +00:00
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/* $Header: /src/pub/tcsh/sh.h,v 3.96 2001/03/18 19:06:29 christos Exp $ */
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2000-04-15 04:41:27 +00:00
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/*
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* sh.h: Catch it all globals and includes file!
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _h_sh
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#define _h_sh
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#include "config.h"
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#ifndef EXTERN
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# define EXTERN extern
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#else /* !EXTERN */
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2000-11-30 21:05:33 +00:00
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# ifdef WINNT_NATIVE
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2000-04-15 04:41:27 +00:00
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# define IZERO = 0
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# define IZERO_STRUCT = {0}
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2000-11-30 21:05:33 +00:00
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# endif /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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#endif /* EXTERN */
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#ifndef IZERO
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# define IZERO
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#endif /* IZERO */
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#ifndef IZERO_STRUCT
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# define IZERO_STRUCT
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# endif /* IZERO_STRUCT */
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2000-11-30 21:05:33 +00:00
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#ifndef WINNT_NATIVE
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2000-04-15 04:41:27 +00:00
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# define INIT_ZERO
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# define INIT_ZERO_STRUCT
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# define force_read read
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2000-11-30 21:05:33 +00:00
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#endif /*!WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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/*
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* Sanity
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*/
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#if defined(_POSIX_SOURCE) && !defined(POSIX)
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# define POSIX
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#endif
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#if defined(POSIXJOBS) && !defined(BSDJOBS)
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# define BSDJOBS
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#endif
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#if defined(POSIXSIGS) && !defined(BSDSIGS)
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# define BSDSIGS
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#endif
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#ifdef SHORT_STRINGS
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typedef short Char;
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typedef unsigned short uChar;
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# define SAVE(a) (Strsave(str2short(a)))
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#else
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typedef char Char;
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typedef unsigned char uChar;
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# define SAVE(a) (strsave(a))
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#endif
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/* Elide unused argument warnings */
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#define USE(a) (void) (a)
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/*
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* If your compiler complains, then you can either
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* throw it away and get gcc or, use the following define
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* and get rid of the typedef.
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* [The 4.2/3BSD vax compiler does not like that]
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* Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com
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*/
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#ifdef SIGVOID
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# if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__)
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# define sigret_t void
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# else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */
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typedef void sigret_t;
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# endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */
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#else /* !SIGVOID */
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typedef int sigret_t;
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#endif /* SIGVOID */
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/*
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* Return true if the path is absolute
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*/
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2000-11-30 21:05:33 +00:00
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#ifndef WINNT_NATIVE
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2000-04-15 04:41:27 +00:00
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# define ABSOLUTEP(p) (*(p) == '/')
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2000-11-30 21:05:33 +00:00
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#else /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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# define ABSOLUTEP(p) ((p)[0] == '/' || \
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(Isalpha((p)[0]) && (p)[1] == ':' && (p)[2] == '/'))
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2000-11-30 21:05:33 +00:00
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#endif /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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/*
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* Fundamental definitions which may vary from system to system.
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*
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* BUFSIZE The i/o buffering size; also limits word size
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* MAILINTVL How often to mailcheck; more often is more expensive
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*/
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#ifdef BUFSIZE
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2000-06-10 22:20:53 +00:00
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# if BUFSIZE < 4096
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2000-04-15 04:41:27 +00:00
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# undef BUFSIZE
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2000-06-10 22:20:53 +00:00
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# define BUFSIZE 4096 /* buffer size should be no less than this */
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2000-04-15 04:41:27 +00:00
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# endif
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#else
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2000-06-10 22:20:53 +00:00
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# define BUFSIZE 4096
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2000-04-15 04:41:27 +00:00
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#endif /* BUFSIZE */
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#define FORKSLEEP 10 /* delay loop on non-interactive fork failure */
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#define MAILINTVL 600 /* 10 minutes */
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#ifndef INBUFSIZE
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# define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */
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#endif /* INBUFSIZE */
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/*
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* What our builtin echo looks like
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*/
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#define NONE_ECHO 0
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#define BSD_ECHO 1
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#define SYSV_ECHO 2
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#define BOTH_ECHO (BSD_ECHO|SYSV_ECHO)
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#ifndef ECHO_STYLE
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# if SYSVREL > 0
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# define ECHO_STYLE SYSV_ECHO
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# else /* SYSVREL == 0 */
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# define ECHO_STYLE BSD_ECHO
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# endif /* SYSVREL */
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#endif /* ECHO_STYLE */
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/*
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* The shell moves std in/out/diag and the old std input away from units
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* 0, 1, and 2 so that it is easy to set up these standards for invoked
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* commands.
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*/
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#define FSHTTY 15 /* /dev/tty when manip pgrps */
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#define FSHIN 16 /* Preferred desc for shell input */
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#define FSHOUT 17 /* ... shell output */
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#define FSHDIAG 18 /* ... shell diagnostics */
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#define FOLDSTD 19 /* ... old std input */
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#ifdef PROF
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#define xexit(n) done(n)
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#endif
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#ifdef cray
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# define word word_t /* sys/types.h defines word.. bad move! */
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#endif
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#include <sys/types.h>
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#ifdef cray
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# undef word
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#endif
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/*
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* Path separator in environment variables
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*/
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#ifndef PATHSEP
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2000-11-30 21:05:33 +00:00
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# if defined(__EMX__) || defined(WINNT_NATIVE)
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2000-04-15 04:41:27 +00:00
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# define PATHSEP ';'
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# else /* unix */
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# define PATHSEP ':'
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2000-11-30 21:05:33 +00:00
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# endif /* __EMX__ || WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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#endif /* !PATHSEP */
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2001-09-05 17:49:32 +00:00
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#if defined(__HP_CXD_SPP) && !defined(__hpux)
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2000-04-15 04:41:27 +00:00
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# include <sys/cnx_stat.h>
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# define stat stat64
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# define fstat fstat64
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# define lstat lstat64
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2001-09-05 17:49:32 +00:00
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#endif /* __HP_CXD_SPP && !__hpux */
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2000-04-15 04:41:27 +00:00
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/*
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* This macro compares the st_dev field of struct stat. On aix on ibmESA
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* st_dev is a structure, so comparison does not work.
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*/
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#ifndef DEV_DEV_COMPARE
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# define DEV_DEV_COMPARE(x,y) ((x) == (y))
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#endif /* DEV_DEV_COMPARE */
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#ifdef _SEQUENT_
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# include <sys/procstats.h>
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#endif /* _SEQUENT_ */
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2000-11-30 21:05:33 +00:00
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#if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE)
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2000-04-15 04:41:27 +00:00
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# include <sys/times.h>
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2000-11-30 21:05:33 +00:00
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#endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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#ifdef NLS
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# include <locale.h>
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#endif /* NLS */
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2000-11-30 21:05:33 +00:00
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#if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__)
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2000-04-15 04:41:27 +00:00
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# include <sys/param.h>
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2000-11-30 21:05:33 +00:00
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#endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */
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2000-04-15 04:41:27 +00:00
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#include <sys/stat.h>
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#if defined(BSDTIMES) || defined(BSDLIMIT)
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# include <sys/time.h>
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2000-11-30 21:05:33 +00:00
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# if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__)
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2000-04-15 04:41:27 +00:00
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# include "/usr/ucbinclude/sys/resource.h"
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# else
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# ifdef convex
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# define sysrusage cvxrusage
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# include <sys/sysinfo.h>
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# else
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# define sysrusage rusage
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# include <sys/resource.h>
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# endif /* convex */
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# endif /* SYSVREL>3 */
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#endif /* BSDTIMES */
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2000-11-30 21:05:33 +00:00
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#ifndef WINNT_NATIVE
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2000-04-15 04:41:27 +00:00
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# ifndef POSIX
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# ifdef TERMIO
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# include <termio.h>
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# else /* SGTTY */
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# include <sgtty.h>
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# endif /* TERMIO */
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# else /* POSIX */
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# ifndef _UWIN
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# include <termios.h>
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# else
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# include <termio.h>
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# endif /* _UWIN */
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# if SYSVREL > 3
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# undef TIOCGLTC /* we don't need those, since POSIX has them */
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# undef TIOCSLTC
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# undef CSWTCH
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# define CSWTCH _POSIX_VDISABLE /* So job control works */
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# endif /* SYSVREL > 3 */
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# endif /* POSIX */
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2000-11-30 21:05:33 +00:00
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#endif /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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#ifdef sonyrisc
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# include <sys/ttold.h>
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#endif /* sonyrisc */
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2000-11-30 21:05:33 +00:00
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#if defined(POSIX) && !defined(WINNT_NATIVE)
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2000-04-15 04:41:27 +00:00
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/*
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* We should be using setpgid and setpgid
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* by now, but in some systems we use the
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* old routines...
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*/
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# define getpgrp __getpgrp
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# define setpgrp __setpgrp
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# include <unistd.h>
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# undef getpgrp
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# undef setpgrp
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/*
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* the gcc+protoize version of <stdlib.h>
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* redefines malloc(), so we define the following
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* to avoid it.
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*/
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# if defined(linux) || defined(sgi) || defined(_OSD_POSIX)
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# define NO_FIX_MALLOC
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# include <stdlib.h>
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# else /* linux */
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# define _GNU_STDLIB_H
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# define malloc __malloc
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# define free __free
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# define calloc __calloc
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# define realloc __realloc
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# include <stdlib.h>
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# undef malloc
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# undef free
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# undef calloc
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# undef realloc
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# endif /* linux || sgi */
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# include <limits.h>
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2000-11-30 21:05:33 +00:00
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#endif /* POSIX && !WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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2001-09-05 17:49:32 +00:00
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#if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(linux)
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2000-04-15 04:41:27 +00:00
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|
|
# if !defined(pyr) && !defined(stellar)
|
|
|
|
|
# include <time.h>
|
|
|
|
|
# ifdef _MINIX
|
|
|
|
|
# define HZ CLOCKS_PER_SEC
|
|
|
|
|
# endif /* _MINIX */
|
|
|
|
|
# endif /* !pyr && !stellar */
|
|
|
|
|
#endif /* SYSVREL > 0 || _IBMR2 */
|
|
|
|
|
|
|
|
|
|
/* In the following ifdef the DECOSF1 has been commented so that later
|
|
|
|
|
* versions of DECOSF1 will get TIOCGWINSZ. This might break older versions...
|
|
|
|
|
*/
|
|
|
|
|
#if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO))
|
2000-11-30 21:05:33 +00:00
|
|
|
# if !defined(COHERENT) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE)
|
2000-04-15 04:41:27 +00:00
|
|
|
# include <sys/ioctl.h>
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX)
|
|
|
|
|
#undef CSWTCH
|
|
|
|
|
#define CSWTCH _POSIX_VDISABLE
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-11-30 21:05:33 +00:00
|
|
|
#if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__)
|
2000-04-15 04:41:27 +00:00
|
|
|
# include <sys/filio.h>
|
|
|
|
|
#endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */
|
|
|
|
|
|
2000-11-30 21:05:33 +00:00
|
|
|
#if !defined(_MINIX) && !defined(COHERENT) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D)
|
2000-04-15 04:41:27 +00:00
|
|
|
# include <sys/file.h>
|
2000-11-30 21:05:33 +00:00
|
|
|
#endif /* !_MINIX && !COHERENT && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */
|
2000-04-15 04:41:27 +00:00
|
|
|
|
|
|
|
|
#if !defined(O_RDONLY) || !defined(O_NDELAY)
|
|
|
|
|
# include <fcntl.h>
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#include <errno.h>
|
|
|
|
|
|
|
|
|
|
#include <setjmp.h>
|
|
|
|
|
|
|
|
|
|
#if __STDC__ || defined(FUNCPROTO)
|
|
|
|
|
# include <stdarg.h>
|
|
|
|
|
#else
|
|
|
|
|
#ifdef _MINIX
|
|
|
|
|
# include "mi.varargs.h"
|
|
|
|
|
#else
|
|
|
|
|
# include <varargs.h>
|
|
|
|
|
#endif /* _MINIX */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef DIRENT
|
|
|
|
|
# include <dirent.h>
|
|
|
|
|
#else
|
|
|
|
|
# ifdef hp9000s500
|
|
|
|
|
# include <ndir.h>
|
|
|
|
|
# else
|
|
|
|
|
# include <sys/dir.h>
|
|
|
|
|
# endif
|
|
|
|
|
# define dirent direct
|
|
|
|
|
#endif /* DIRENT */
|
|
|
|
|
#if defined(hpux) || defined(sgi) || defined(OREO) || defined(COHERENT)
|
|
|
|
|
# include <stdio.h> /* So the fgetpwent() prototypes work */
|
|
|
|
|
#endif /* hpux || sgi || OREO || COHERENT */
|
2000-11-30 21:05:33 +00:00
|
|
|
#ifndef WINNT_NATIVE
|
2000-04-15 04:41:27 +00:00
|
|
|
#include <pwd.h>
|
|
|
|
|
#include <grp.h>
|
2000-11-30 21:05:33 +00:00
|
|
|
#endif /* WINNT_NATIVE */
|
2000-04-15 04:41:27 +00:00
|
|
|
#ifdef PW_SHADOW
|
|
|
|
|
# include <shadow.h>
|
|
|
|
|
#endif /* PW_SHADOW */
|
|
|
|
|
#ifdef PW_AUTH
|
|
|
|
|
# include <auth.h>
|
|
|
|
|
#endif /* PW_AUTH */
|
|
|
|
|
#if defined(BSD) && !defined(POSIX)
|
|
|
|
|
# include <strings.h>
|
|
|
|
|
# define strchr(a, b) index(a, b)
|
|
|
|
|
# define strrchr(a, b) rindex(a, b)
|
|
|
|
|
#else
|
|
|
|
|
# include <string.h>
|
|
|
|
|
#endif /* BSD */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* IRIX-5.0 has <sys/cdefs.h>, but most system include files do not
|
|
|
|
|
* include it yet, so we include it here
|
|
|
|
|
*/
|
|
|
|
|
#if defined(sgi) && SYSVREL > 3
|
|
|
|
|
# include <sys/cdefs.h>
|
|
|
|
|
#endif /* sgi && SYSVREL > 3 */
|
|
|
|
|
|
|
|
|
|
#ifdef REMOTEHOST
|
|
|
|
|
# ifdef ISC
|
|
|
|
|
# undef MAXHOSTNAMELEN /* Busted headers? */
|
|
|
|
|
# endif
|
|
|
|
|
|
|
|
|
|
# include <netinet/in.h>
|
|
|
|
|
# include <arpa/inet.h>
|
|
|
|
|
# include <sys/socket.h>
|
2000-11-30 21:05:33 +00:00
|
|
|
# if defined(_SS_SIZE) || defined(_SS_MAXSIZE)
|
|
|
|
|
# define INET6
|
|
|
|
|
# endif
|
2000-04-15 04:41:27 +00:00
|
|
|
# include <sys/uio.h> /* For struct iovec */
|
|
|
|
|
#endif /* REMOTEHOST */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* ANSIisms... These must be *after* the system include and
|
|
|
|
|
* *before* our includes, so that BSDreno has time to define __P
|
|
|
|
|
*/
|
|
|
|
|
#undef __P
|
|
|
|
|
#ifndef __P
|
|
|
|
|
# if __STDC__ || defined(FUNCPROTO)
|
|
|
|
|
# ifndef FUNCPROTO
|
|
|
|
|
# define FUNCPROTO
|
|
|
|
|
# endif
|
|
|
|
|
# define __P(a) a
|
|
|
|
|
# else
|
|
|
|
|
# define __P(a) ()
|
|
|
|
|
# if !__STDC__
|
|
|
|
|
# define const
|
|
|
|
|
# ifndef apollo
|
|
|
|
|
# define volatile /* Apollo 'c' extensions need this */
|
|
|
|
|
# endif /* apollo */
|
|
|
|
|
# endif
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef PURIFY
|
|
|
|
|
/* exit normally, allowing purify to trace leaks */
|
|
|
|
|
# define _exit exit
|
|
|
|
|
typedef int pret_t;
|
|
|
|
|
#else /* !PURIFY */
|
|
|
|
|
/*
|
|
|
|
|
* If your compiler complains, then you can either
|
|
|
|
|
* throw it away and get gcc or, use the following define
|
|
|
|
|
* and get rid of the typedef.
|
|
|
|
|
* [The 4.2/3BSD vax compiler does not like that]
|
|
|
|
|
* Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com
|
|
|
|
|
*/
|
|
|
|
|
# if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__)
|
|
|
|
|
# define pret_t void
|
|
|
|
|
# else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */
|
|
|
|
|
typedef void pret_t;
|
|
|
|
|
# endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */
|
|
|
|
|
#endif /* PURIFY */
|
|
|
|
|
|
|
|
|
|
typedef int bool;
|
|
|
|
|
|
2000-11-30 21:05:33 +00:00
|
|
|
/*
|
|
|
|
|
* ASCII vs. EBCDIC
|
|
|
|
|
*/
|
|
|
|
|
#if 'Z' - 'A' == 25
|
|
|
|
|
# ifndef IS_ASCII
|
|
|
|
|
# define IS_ASCII
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-04-15 04:41:27 +00:00
|
|
|
#include "sh.types.h"
|
|
|
|
|
|
2000-11-30 21:05:33 +00:00
|
|
|
#ifndef WINNT_NATIVE
|
2000-04-15 04:41:27 +00:00
|
|
|
# ifndef POSIX
|
|
|
|
|
extern pid_t getpgrp __P((int));
|
|
|
|
|
# else /* POSIX */
|
|
|
|
|
# if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4) || defined(IRIS4D) || defined(DGUX)
|
|
|
|
|
extern pid_t getpgrp __P((int));
|
|
|
|
|
# else /* !(BSD || SUNOS4 || IRIS4D || DGUX) */
|
|
|
|
|
extern pid_t getpgrp __P((void));
|
|
|
|
|
# endif /* BSD || SUNOS4 || IRISD || DGUX */
|
|
|
|
|
# endif /* POSIX */
|
|
|
|
|
extern pid_t setpgrp __P((pid_t, pid_t));
|
2000-11-30 21:05:33 +00:00
|
|
|
#endif /* !WINNT_NATIVE */
|
2000-04-15 04:41:27 +00:00
|
|
|
|
|
|
|
|
typedef sigret_t (*signalfun_t) __P((int));
|
|
|
|
|
|
|
|
|
|
#ifndef lint
|
|
|
|
|
typedef ptr_t memalign_t;
|
|
|
|
|
#else
|
|
|
|
|
typedef union {
|
|
|
|
|
char am_char, *am_char_p;
|
|
|
|
|
short am_short, *am_short_p;
|
|
|
|
|
int am_int, *am_int_p;
|
|
|
|
|
long am_long, *am_long_p;
|
|
|
|
|
float am_float, *am_float_p;
|
|
|
|
|
double am_double, *am_double_p;
|
|
|
|
|
} *memalign_t;
|
|
|
|
|
|
|
|
|
|
# define malloc lint_malloc
|
|
|
|
|
# define free lint_free
|
|
|
|
|
# define realloc lint_realloc
|
|
|
|
|
# define calloc lint_calloc
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef MDEBUG
|
|
|
|
|
extern memalign_t DebugMalloc __P((unsigned, char *, int));
|
|
|
|
|
extern memalign_t DebugRealloc __P((ptr_t, unsigned, char *, int));
|
|
|
|
|
extern memalign_t DebugCalloc __P((unsigned, unsigned, char *, int));
|
|
|
|
|
extern void DebugFree __P((ptr_t, char *, int));
|
|
|
|
|
# define xmalloc(i) DebugMalloc(i, __FILE__, __LINE__)
|
|
|
|
|
# define xrealloc(p, i)((p) ? DebugRealloc(p, i, __FILE__, __LINE__) : \
|
|
|
|
|
DebugMalloc(i, __FILE__, __LINE__))
|
|
|
|
|
# define xcalloc(n, s) DebugCalloc(n, s, __FILE__, __LINE__)
|
|
|
|
|
# define xfree(p) if (p) DebugFree(p, __FILE__, __LINE__)
|
|
|
|
|
#else
|
|
|
|
|
# ifdef SYSMALLOC
|
|
|
|
|
# define xmalloc(i) smalloc(i)
|
|
|
|
|
# define xrealloc(p, i) srealloc(p, i)
|
|
|
|
|
# define xcalloc(n, s) scalloc(n, s)
|
|
|
|
|
# define xfree(p) sfree(p)
|
|
|
|
|
# else
|
|
|
|
|
# define xmalloc(i) malloc(i)
|
|
|
|
|
# define xrealloc(p, i) realloc(p, i)
|
|
|
|
|
# define xcalloc(n, s) calloc(n, s)
|
|
|
|
|
# define xfree(p) free(p)
|
|
|
|
|
# endif /* SYSMALLOC */
|
|
|
|
|
#endif /* MDEBUG */
|
|
|
|
|
#include "sh.char.h"
|
|
|
|
|
#include "sh.err.h"
|
|
|
|
|
#include "sh.dir.h"
|
|
|
|
|
#include "sh.proc.h"
|
|
|
|
|
|
|
|
|
|
#include "pathnames.h"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* C shell
|
|
|
|
|
*
|
|
|
|
|
* Bill Joy, UC Berkeley
|
|
|
|
|
* October, 1978; May 1980
|
|
|
|
|
*
|
|
|
|
|
* Jim Kulp, IIASA, Laxenburg Austria
|
|
|
|
|
* April, 1980
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#if !defined(MAXNAMLEN) && defined(_D_NAME_MAX)
|
|
|
|
|
# define MAXNAMLEN _D_NAME_MAX
|
|
|
|
|
#endif /* MAXNAMLEN */
|
|
|
|
|
|
|
|
|
|
#ifdef HESIOD
|
|
|
|
|
# include <hesiod.h>
|
|
|
|
|
#endif /* HESIOD */
|
|
|
|
|
|
|
|
|
|
#ifdef REMOTEHOST
|
|
|
|
|
# include <netdb.h>
|
|
|
|
|
#endif /* REMOTEHOST */
|
|
|
|
|
|
|
|
|
|
#ifndef MAXHOSTNAMELEN
|
|
|
|
|
# if defined(SCO) && (SYSVREL > 3)
|
|
|
|
|
# include <sys/socket.h>
|
|
|
|
|
# else
|
2001-09-05 17:49:32 +00:00
|
|
|
# define MAXHOSTNAMELEN 256
|
2000-04-15 04:41:27 +00:00
|
|
|
# endif
|
|
|
|
|
#endif /* MAXHOSTNAMELEN */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define eq(a, b) (Strcmp(a, b) == 0)
|
|
|
|
|
|
|
|
|
|
/* globone() flags */
|
|
|
|
|
#define G_ERROR 0 /* default action: error if multiple words */
|
|
|
|
|
#define G_IGNORE 1 /* ignore the rest of the words */
|
|
|
|
|
#define G_APPEND 2 /* make a sentence by cat'ing the words */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Global flags
|
|
|
|
|
*/
|
|
|
|
|
EXTERN bool chkstop IZERO; /* Warned of stopped jobs... allow exit */
|
|
|
|
|
|
|
|
|
|
#if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD)
|
|
|
|
|
# define CLOSE_ON_EXEC
|
|
|
|
|
#else
|
|
|
|
|
EXTERN bool didcch IZERO; /* Have closed unused fd's for child */
|
|
|
|
|
#endif /* (FIOCLEX && FIONCLEX) || F_SETFD */
|
|
|
|
|
|
|
|
|
|
EXTERN bool didfds IZERO; /* Have setup i/o fd's for child */
|
|
|
|
|
EXTERN bool doneinp IZERO; /* EOF indicator after reset from readc */
|
|
|
|
|
EXTERN bool exiterr IZERO; /* Exit if error or non-zero exit status */
|
|
|
|
|
EXTERN bool child IZERO; /* Child shell ... errors cause exit */
|
|
|
|
|
EXTERN bool haderr IZERO; /* Reset was because of an error */
|
|
|
|
|
EXTERN bool intty IZERO; /* Input is a tty */
|
|
|
|
|
EXTERN bool intact IZERO; /* We are interactive... therefore prompt */
|
|
|
|
|
EXTERN bool justpr IZERO; /* Just print because of :p hist mod */
|
|
|
|
|
EXTERN bool loginsh IZERO; /* We are a loginsh -> .login/.logout */
|
|
|
|
|
EXTERN bool neednote IZERO; /* Need to pnotify() */
|
|
|
|
|
EXTERN bool noexec IZERO; /* Don't execute, just syntax check */
|
|
|
|
|
EXTERN bool pjobs IZERO; /* want to print jobs if interrupted */
|
|
|
|
|
EXTERN bool setintr IZERO; /* Set interrupts on/off -> Wait intr... */
|
|
|
|
|
EXTERN bool timflg IZERO; /* Time the next waited for command */
|
|
|
|
|
EXTERN bool havhash IZERO; /* path hashing is available */
|
|
|
|
|
EXTERN bool editing IZERO; /* doing filename expansion and line editing */
|
|
|
|
|
EXTERN bool noediting IZERO; /* initial $term defaulted to noedit */
|
|
|
|
|
EXTERN bool bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */
|
|
|
|
|
EXTERN bool isoutatty IZERO; /* is SHOUT a tty */
|
|
|
|
|
EXTERN bool isdiagatty IZERO;/* is SHDIAG a tty */
|
|
|
|
|
EXTERN bool is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */
|
|
|
|
|
EXTERN bool is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */
|
|
|
|
|
EXTERN bool arun IZERO; /* Currently running multi-line-aliases */
|
|
|
|
|
EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */
|
|
|
|
|
EXTERN bool inheredoc IZERO; /* Currently parsing a heredoc */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Global i/o info
|
|
|
|
|
*/
|
|
|
|
|
EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */
|
|
|
|
|
EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */
|
|
|
|
|
extern Char *ffile; /* Name of shell file for $0 */
|
|
|
|
|
extern bool dolzero; /* if $?0 should return true... */
|
|
|
|
|
|
|
|
|
|
extern char *seterr; /* Error message from scanner/parser */
|
2000-11-30 21:05:33 +00:00
|
|
|
#ifndef BSD4_4
|
2000-04-15 04:41:27 +00:00
|
|
|
extern int errno; /* Error from C library routines */
|
2000-11-30 21:05:33 +00:00
|
|
|
#endif
|
|
|
|
|
extern int exitset;
|
2000-04-15 04:41:27 +00:00
|
|
|
EXTERN Char *shtemp IZERO; /* Temp name for << shell files in /tmp */
|
|
|
|
|
|
|
|
|
|
#ifdef BSDTIMES
|
|
|
|
|
EXTERN struct timeval time0; /* Time at which the shell started */
|
|
|
|
|
EXTERN struct sysrusage ru0;
|
|
|
|
|
#else
|
|
|
|
|
# ifdef _SEQUENT_
|
|
|
|
|
EXTERN timeval_t time0; /* time at which shell started */
|
|
|
|
|
EXTERN struct process_stats ru0;
|
|
|
|
|
# else /* _SEQUENT_ */
|
|
|
|
|
# ifndef POSIX
|
|
|
|
|
EXTERN time_t time0; /* time at which shell started */
|
|
|
|
|
# else /* POSIX */
|
|
|
|
|
EXTERN clock_t time0; /* time at which shell started */
|
|
|
|
|
EXTERN clock_t clk_tck;
|
|
|
|
|
# endif /* POSIX */
|
|
|
|
|
EXTERN struct tms shtimes; /* shell and child times for process timing */
|
|
|
|
|
# endif /* _SEQUENT_ */
|
2000-04-20 04:22:36 +00:00
|
|
|
EXTERN long seconds0;
|
2000-04-15 04:41:27 +00:00
|
|
|
#endif /* BSDTIMES */
|
|
|
|
|
|
|
|
|
|
#ifndef HZ
|
|
|
|
|
# define HZ 100 /* for division into seconds */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Miscellany
|
|
|
|
|
*/
|
|
|
|
|
EXTERN Char *doldol; /* Character pid for $$ */
|
|
|
|
|
EXTERN int backpid; /* pid of the last background job */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now
|
|
|
|
|
* cause pid's could be unsigned and that would break our -1 flag, and
|
|
|
|
|
* uid_t and gid_t are not defined in all the systems so I would have to
|
|
|
|
|
* make special cases for them. In the future...
|
|
|
|
|
*/
|
|
|
|
|
EXTERN int uid, euid, /* Invokers real and effective */
|
|
|
|
|
gid, egid; /* User and group ids */
|
|
|
|
|
EXTERN int opgrp, /* Initial pgrp and tty pgrp */
|
|
|
|
|
shpgrp, /* Pgrp of shell */
|
|
|
|
|
tpgrp; /* Terminal process group */
|
|
|
|
|
/* If tpgrp is -1, leave tty alone! */
|
|
|
|
|
|
|
|
|
|
EXTERN Char PromptBuf[INBUFSIZE*2]; /* buffer for the actual printed prompt.
|
|
|
|
|
* this must be large enough to contain
|
|
|
|
|
* the input line and the prompt, in
|
|
|
|
|
* case a correction occurred...
|
|
|
|
|
*/
|
|
|
|
|
EXTERN Char RPromptBuf[INBUFSIZE]; /* buffer for right-hand side prompt */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* To be able to redirect i/o for builtins easily, the shell moves the i/o
|
|
|
|
|
* descriptors it uses away from 0,1,2.
|
|
|
|
|
* Ideally these should be in units which are closed across exec's
|
|
|
|
|
* (this saves work) but for version 6, this is not usually possible.
|
|
|
|
|
* The desired initial values for these descriptors are defined in
|
|
|
|
|
* sh.local.h.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN int SHIN IZERO; /* Current shell input (script) */
|
|
|
|
|
EXTERN int SHOUT IZERO; /* Shell output */
|
|
|
|
|
EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */
|
|
|
|
|
EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#if SYSVREL == 4 && defined(_UTS)
|
|
|
|
|
/*
|
|
|
|
|
* From: fadden@uts.amdahl.com (Andy McFadden)
|
|
|
|
|
* we need sigsetjmp for UTS4, but not UTS2.1
|
|
|
|
|
*/
|
|
|
|
|
# define SIGSETJMP
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Error control
|
|
|
|
|
*
|
|
|
|
|
* Errors in scanning and parsing set up an error message to be printed
|
|
|
|
|
* at the end and complete. Other errors always cause a reset.
|
|
|
|
|
* Because of source commands and .cshrc we need nested error catches.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifdef NO_STRUCT_ASSIGNMENT
|
|
|
|
|
|
|
|
|
|
# ifdef SIGSETJMP
|
|
|
|
|
typedef sigjmp_buf jmp_buf_t;
|
|
|
|
|
/* bugfix by Jak Kirman @ Brown U.: remove the (void) cast here, see sh.c */
|
|
|
|
|
# define setexit() sigsetjmp(reslab)
|
|
|
|
|
# define reset() siglongjmp(reslab, 1)
|
|
|
|
|
# else
|
|
|
|
|
typedef jmp_buf jmp_buf_t;
|
|
|
|
|
/* bugfix by Jak Kirman @ Brown U.: remove the (void) cast here, see sh.c */
|
|
|
|
|
# define setexit() setjmp(reslab)
|
|
|
|
|
# define reset() longjmp(reslab, 1)
|
|
|
|
|
# endif
|
|
|
|
|
# define getexit(a) (void) memmove((ptr_t)&(a), (ptr_t)&reslab, sizeof(reslab))
|
|
|
|
|
# define resexit(a) (void) memmove((ptr_t)&reslab, (ptr_t)&(a), sizeof(reslab))
|
|
|
|
|
|
|
|
|
|
# define cpybin(a, b) (void) memmove((ptr_t)&(a), (ptr_t)&(b), sizeof(Bin))
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
# ifdef SIGSETJMP
|
|
|
|
|
typedef struct { sigjmp_buf j; } jmp_buf_t;
|
|
|
|
|
# define setexit() sigsetjmp(reslab.j)
|
|
|
|
|
# define reset() siglongjmp(reslab.j, 1)
|
|
|
|
|
# else
|
|
|
|
|
typedef struct { jmp_buf j; } jmp_buf_t;
|
|
|
|
|
# define setexit() setjmp(reslab.j)
|
|
|
|
|
# define reset() longjmp(reslab.j, 1)
|
|
|
|
|
# endif
|
|
|
|
|
|
|
|
|
|
# define getexit(a) (void) ((a) = reslab)
|
|
|
|
|
# define resexit(a) (void) (reslab = (a))
|
|
|
|
|
|
|
|
|
|
# define cpybin(a, b) (void) ((a) = (b))
|
|
|
|
|
|
|
|
|
|
#endif /* NO_STRUCT_ASSIGNMENT */
|
|
|
|
|
|
|
|
|
|
extern jmp_buf_t reslab;
|
|
|
|
|
|
|
|
|
|
EXTERN Char *gointr; /* Label for an onintr transfer */
|
|
|
|
|
|
|
|
|
|
extern signalfun_t parintr; /* Parents interrupt catch */
|
|
|
|
|
extern signalfun_t parterm; /* Parents terminate catch */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Lexical definitions.
|
|
|
|
|
*
|
|
|
|
|
* All lexical space is allocated dynamically.
|
|
|
|
|
* The eighth/sixteenth bit of characters is used to prevent recognition,
|
|
|
|
|
* and eventually stripped.
|
|
|
|
|
*/
|
|
|
|
|
#define META 0200
|
|
|
|
|
#define ASCII 0177
|
|
|
|
|
#ifdef SHORT_STRINGS
|
|
|
|
|
# define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */
|
|
|
|
|
# define TRIM 0077777 /* Mask to strip quote bit */
|
|
|
|
|
# define UNDER 0040000 /* Underline flag */
|
|
|
|
|
# define BOLD 0020000 /* Bold flag */
|
|
|
|
|
# define STANDOUT 0010000 /* Standout flag */
|
|
|
|
|
# define LITERAL 0004000 /* Literal character flag */
|
|
|
|
|
# define ATTRIBUTES 0074000 /* The bits used for attributes */
|
|
|
|
|
# define CHAR 0000377 /* Mask to mask out the character */
|
|
|
|
|
#else
|
|
|
|
|
# define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */
|
|
|
|
|
# define TRIM 0177 /* Mask to strip quote bit */
|
|
|
|
|
# define UNDER 0000000 /* No extra bits to do both */
|
|
|
|
|
# define BOLD 0000000 /* Bold flag */
|
|
|
|
|
# define STANDOUT META /* Standout flag */
|
|
|
|
|
# define LITERAL 0000000 /* Literal character flag */
|
|
|
|
|
# define ATTRIBUTES 0200 /* The bits used for attributes */
|
|
|
|
|
# define CHAR 0000177 /* Mask to mask out the character */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Each level of input has a buffered input structure.
|
|
|
|
|
* There are one or more blocks of buffered input for each level,
|
|
|
|
|
* exactly one if the input is seekable and tell is available.
|
|
|
|
|
* In other cases, the shell buffers enough blocks to keep all loops
|
|
|
|
|
* in the buffer.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct Bin {
|
|
|
|
|
off_t Bfseekp; /* Seek pointer */
|
|
|
|
|
off_t Bfbobp; /* Seekp of beginning of buffers */
|
|
|
|
|
off_t Bfeobp; /* Seekp of end of buffers */
|
|
|
|
|
int Bfblocks; /* Number of buffer blocks */
|
|
|
|
|
Char **Bfbuf; /* The array of buffer blocks */
|
|
|
|
|
} B;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This structure allows us to seek inside aliases
|
|
|
|
|
*/
|
|
|
|
|
struct Ain {
|
|
|
|
|
int type;
|
2000-11-30 21:05:33 +00:00
|
|
|
#define TCSH_I_SEEK 0 /* Invalid seek */
|
|
|
|
|
#define TCSH_A_SEEK 1 /* Alias seek */
|
|
|
|
|
#define TCSH_F_SEEK 2 /* File seek */
|
|
|
|
|
#define TCSH_E_SEEK 3 /* Eval seek */
|
2000-04-15 04:41:27 +00:00
|
|
|
union {
|
|
|
|
|
off_t _f_seek;
|
|
|
|
|
Char* _c_seek;
|
|
|
|
|
} fc;
|
|
|
|
|
#define f_seek fc._f_seek
|
|
|
|
|
#define c_seek fc._c_seek
|
|
|
|
|
Char **a_seek;
|
|
|
|
|
} ;
|
|
|
|
|
|
|
|
|
|
extern int aret; /* Type of last char returned */
|
|
|
|
|
#define SEEKEQ(a, b) ((a)->type == (b)->type && \
|
|
|
|
|
(a)->f_seek == (b)->f_seek && \
|
|
|
|
|
(a)->a_seek == (b)->a_seek)
|
|
|
|
|
|
|
|
|
|
#define fseekp B.Bfseekp
|
|
|
|
|
#define fbobp B.Bfbobp
|
|
|
|
|
#define feobp B.Bfeobp
|
|
|
|
|
#define fblocks B.Bfblocks
|
|
|
|
|
#define fbuf B.Bfbuf
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* The shell finds commands in loops by reseeking the input
|
|
|
|
|
* For whiles, in particular, it reseeks to the beginning of the
|
|
|
|
|
* line the while was on; hence the while placement restrictions.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct Ain lineloc;
|
|
|
|
|
|
|
|
|
|
EXTERN bool cantell; /* Is current source tellable ? */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Input lines are parsed into doubly linked circular
|
|
|
|
|
* lists of words of the following form.
|
|
|
|
|
*/
|
|
|
|
|
struct wordent {
|
|
|
|
|
Char *word;
|
|
|
|
|
struct wordent *prev;
|
|
|
|
|
struct wordent *next;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* During word building, both in the initial lexical phase and
|
|
|
|
|
* when expanding $ variable substitutions, expansion by `!' and `$'
|
|
|
|
|
* must be inhibited when reading ahead in routines which are themselves
|
|
|
|
|
* processing `!' and `$' expansion or after characters such as `\' or in
|
|
|
|
|
* quotations. The following flags are passed to the getC routines
|
|
|
|
|
* telling them which of these substitutions are appropriate for the
|
|
|
|
|
* next character to be returned.
|
|
|
|
|
*/
|
|
|
|
|
#define DODOL 1
|
|
|
|
|
#define DOEXCL 2
|
|
|
|
|
#define DOALL DODOL|DOEXCL
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Labuf implements a general buffer for lookahead during lexical operations.
|
|
|
|
|
* Text which is to be placed in the input stream can be stuck here.
|
|
|
|
|
* We stick parsed ahead $ constructs during initial input,
|
|
|
|
|
* process id's from `$$', and modified variable values (from qualifiers
|
|
|
|
|
* during expansion in sh.dol.c) here.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN Char *lap;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Parser structure
|
|
|
|
|
*
|
|
|
|
|
* Each command is parsed to a tree of command structures and
|
|
|
|
|
* flags are set bottom up during this process, to be propagated down
|
|
|
|
|
* as needed during the semantics/exeuction pass (sh.sem.c).
|
|
|
|
|
*/
|
|
|
|
|
struct command {
|
|
|
|
|
unsigned char t_dtyp; /* Type of node */
|
|
|
|
|
#define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */
|
|
|
|
|
#define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */
|
|
|
|
|
#define NODE_PIPE 3 /* t_dlef | t_drit */
|
|
|
|
|
#define NODE_LIST 4 /* t_dlef ; t_drit */
|
|
|
|
|
#define NODE_OR 5 /* t_dlef || t_drit */
|
|
|
|
|
#define NODE_AND 6 /* t_dlef && t_drit */
|
|
|
|
|
unsigned char t_nice; /* Nice value */
|
|
|
|
|
#ifdef apollo
|
|
|
|
|
unsigned char t_systype; /* System environment */
|
|
|
|
|
#endif
|
|
|
|
|
unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */
|
|
|
|
|
/* save these when re-doing */
|
|
|
|
|
#ifndef apollo
|
|
|
|
|
#define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP)
|
|
|
|
|
#else
|
|
|
|
|
#define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER)
|
|
|
|
|
#endif
|
|
|
|
|
#define F_AMPERSAND (1<<0) /* executes in background */
|
|
|
|
|
#define F_APPEND (1<<1) /* output is redirected >> */
|
|
|
|
|
#define F_PIPEIN (1<<2) /* input is a pipe */
|
|
|
|
|
#define F_PIPEOUT (1<<3) /* output is a pipe */
|
|
|
|
|
#define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */
|
|
|
|
|
#define F_NOINTERRUPT (1<<5) /* should be immune from intr's */
|
|
|
|
|
/* spare */
|
|
|
|
|
#define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */
|
|
|
|
|
#define F_OVERWRITE (1<<8) /* output was ! */
|
|
|
|
|
#define F_READ (1<<9) /* input redirection is << */
|
|
|
|
|
#define F_REPEAT (1<<10) /* reexec aft if, repeat,... */
|
|
|
|
|
#define F_NICE (1<<11) /* t_nice is meaningful */
|
|
|
|
|
#define F_NOHUP (1<<12) /* nohup this command */
|
|
|
|
|
#define F_TIME (1<<13) /* time this command */
|
|
|
|
|
#define F_BACKQ (1<<14) /* command is in `` */
|
|
|
|
|
#define F_HUP (1<<15) /* hup this command */
|
|
|
|
|
#ifdef apollo
|
|
|
|
|
#define F_VER (1<<16) /* execute command under SYSTYPE */
|
|
|
|
|
#endif
|
|
|
|
|
union {
|
|
|
|
|
Char *T_dlef; /* Input redirect word */
|
|
|
|
|
struct command *T_dcar; /* Left part of list/pipe */
|
|
|
|
|
} L;
|
|
|
|
|
union {
|
|
|
|
|
Char *T_drit; /* Output redirect word */
|
|
|
|
|
struct command *T_dcdr; /* Right part of list/pipe */
|
|
|
|
|
} R;
|
|
|
|
|
#define t_dlef L.T_dlef
|
|
|
|
|
#define t_dcar L.T_dcar
|
|
|
|
|
#define t_drit R.T_drit
|
|
|
|
|
#define t_dcdr R.T_dcdr
|
|
|
|
|
Char **t_dcom; /* Command/argument vector */
|
|
|
|
|
struct command *t_dspr; /* Pointer to ()'d subtree */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* The keywords for the parser
|
|
|
|
|
*/
|
|
|
|
|
#define TC_BREAK 0
|
|
|
|
|
#define TC_BRKSW 1
|
|
|
|
|
#define TC_CASE 2
|
|
|
|
|
#define TC_DEFAULT 3
|
|
|
|
|
#define TC_ELSE 4
|
|
|
|
|
#define TC_END 5
|
|
|
|
|
#define TC_ENDIF 6
|
|
|
|
|
#define TC_ENDSW 7
|
|
|
|
|
#define TC_EXIT 8
|
|
|
|
|
#define TC_FOREACH 9
|
|
|
|
|
#define TC_GOTO 10
|
|
|
|
|
#define TC_IF 11
|
|
|
|
|
#define TC_LABEL 12
|
|
|
|
|
#define TC_LET 13
|
|
|
|
|
#define TC_SET 14
|
|
|
|
|
#define TC_SWITCH 15
|
|
|
|
|
#define TC_TEST 16
|
|
|
|
|
#define TC_THEN 17
|
|
|
|
|
#define TC_WHILE 18
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* These are declared here because they want to be
|
|
|
|
|
* initialized in sh.init.c (to allow them to be made readonly)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#if defined(hpux) && defined(__STDC__) && !defined(__GNUC__)
|
|
|
|
|
/* Avoid hpux ansi mode spurious warnings */
|
|
|
|
|
typedef void (*bfunc_t) ();
|
|
|
|
|
#else
|
|
|
|
|
typedef void (*bfunc_t) __P((Char **, struct command *));
|
|
|
|
|
#endif /* hpux && __STDC__ && !__GNUC__ */
|
|
|
|
|
|
|
|
|
|
extern struct biltins {
|
|
|
|
|
char *bname;
|
|
|
|
|
bfunc_t bfunct;
|
|
|
|
|
int minargs, maxargs;
|
|
|
|
|
} bfunc[];
|
|
|
|
|
extern int nbfunc;
|
2000-11-30 21:05:33 +00:00
|
|
|
#ifdef WINNT_NATIVE
|
2000-04-15 04:41:27 +00:00
|
|
|
extern struct biltins nt_bfunc[];
|
|
|
|
|
extern int nt_nbfunc;
|
2000-11-30 21:05:33 +00:00
|
|
|
#endif /* WINNT_NATIVE*/
|
2000-04-15 04:41:27 +00:00
|
|
|
|
|
|
|
|
extern struct srch {
|
|
|
|
|
char *s_name;
|
|
|
|
|
int s_value;
|
|
|
|
|
} srchn[];
|
|
|
|
|
extern int nsrchn;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Structure defining the existing while/foreach loops at this
|
|
|
|
|
* source level. Loops are implemented by seeking back in the
|
|
|
|
|
* input. For foreach (fe), the word list is attached here.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct whyle {
|
|
|
|
|
struct Ain w_start; /* Point to restart loop */
|
|
|
|
|
struct Ain w_end; /* End of loop (0 if unknown) */
|
|
|
|
|
Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */
|
|
|
|
|
Char *w_fename; /* Name for fe */
|
|
|
|
|
struct whyle *w_next; /* Next (more outer) loop */
|
|
|
|
|
} *whyles;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Variable structure
|
|
|
|
|
*
|
|
|
|
|
* Aliases and variables are stored in AVL balanced binary trees.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct varent {
|
|
|
|
|
Char **vec; /* Array of words which is the value */
|
|
|
|
|
Char *v_name; /* Name of variable/alias */
|
|
|
|
|
int v_flags; /* Flags */
|
|
|
|
|
#define VAR_ALL -1
|
|
|
|
|
#define VAR_READONLY 1
|
|
|
|
|
#define VAR_READWRITE 2
|
|
|
|
|
#define VAR_NOGLOB 4
|
|
|
|
|
#define VAR_FIRST 32
|
|
|
|
|
#define VAR_LAST 64
|
|
|
|
|
struct varent *v_link[3]; /* The links, see below */
|
|
|
|
|
int v_bal; /* Balance factor */
|
|
|
|
|
} shvhed IZERO_STRUCT, aliases IZERO_STRUCT;
|
|
|
|
|
|
|
|
|
|
#define v_left v_link[0]
|
|
|
|
|
#define v_right v_link[1]
|
|
|
|
|
#define v_parent v_link[2]
|
|
|
|
|
|
|
|
|
|
#define adrof(v) adrof1(v, &shvhed)
|
|
|
|
|
#define varval(v) value1(v, &shvhed)
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* The following are for interfacing redo substitution in
|
|
|
|
|
* aliases to the lexical routines.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */
|
|
|
|
|
EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */
|
|
|
|
|
EXTERN Char **alvec IZERO_STRUCT,
|
|
|
|
|
*alvecp IZERO_STRUCT;/* The (remnants of) alias vector */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Filename/command name expansion variables
|
|
|
|
|
*/
|
|
|
|
|
EXTERN int gflag; /* After tglob -> is globbing needed? */
|
|
|
|
|
|
|
|
|
|
#define MAXVARLEN 30 /* Maximum number of char in a variable name */
|
|
|
|
|
|
|
|
|
|
#ifndef MAXPATHLEN
|
|
|
|
|
# define MAXPATHLEN 2048
|
|
|
|
|
#endif /* MAXPATHLEN */
|
|
|
|
|
|
|
|
|
|
#ifndef MAXNAMLEN
|
|
|
|
|
# define MAXNAMLEN 512
|
|
|
|
|
#endif /* MAXNAMLEN */
|
|
|
|
|
|
|
|
|
|
#ifndef HAVENOLIMIT
|
|
|
|
|
/*
|
|
|
|
|
* resource limits
|
|
|
|
|
*/
|
|
|
|
|
extern struct limits {
|
|
|
|
|
int limconst;
|
|
|
|
|
char *limname;
|
|
|
|
|
int limdiv;
|
|
|
|
|
char *limscale;
|
|
|
|
|
} limits[];
|
|
|
|
|
#endif /* !HAVENOLIMIT */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Variables for filename expansion
|
|
|
|
|
*/
|
|
|
|
|
extern Char **gargv; /* Pointer to the (stack) arglist */
|
|
|
|
|
extern int gargc; /* Number args in gargv */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Variables for command expansion.
|
|
|
|
|
*/
|
|
|
|
|
extern Char **pargv; /* Pointer to the argv list space */
|
|
|
|
|
EXTERN Char *pargs; /* Pointer to start current word */
|
|
|
|
|
EXTERN long pnleft; /* Number of chars left in pargs */
|
|
|
|
|
EXTERN Char *pargcp; /* Current index into pargs */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* History list
|
|
|
|
|
*
|
|
|
|
|
* Each history list entry contains an embedded wordlist
|
|
|
|
|
* from the scanner, a number for the event, and a reference count
|
|
|
|
|
* to aid in discarding old entries.
|
|
|
|
|
*
|
|
|
|
|
* Essentially "invisible" entries are put on the history list
|
|
|
|
|
* when history substitution includes modifiers, and thrown away
|
|
|
|
|
* at the next discarding since their event numbers are very negative.
|
|
|
|
|
*/
|
|
|
|
|
EXTERN struct Hist {
|
|
|
|
|
struct wordent Hlex;
|
|
|
|
|
int Hnum;
|
|
|
|
|
int Href;
|
|
|
|
|
time_t Htime;
|
|
|
|
|
Char *histline;
|
|
|
|
|
struct Hist *Hnext;
|
|
|
|
|
} Histlist IZERO_STRUCT;
|
|
|
|
|
|
|
|
|
|
EXTERN struct wordent paraml; /* Current lexical word list */
|
|
|
|
|
EXTERN int eventno; /* Next events number */
|
|
|
|
|
EXTERN int lastev; /* Last event reference (default) */
|
|
|
|
|
|
|
|
|
|
EXTERN Char HIST; /* history invocation character */
|
|
|
|
|
EXTERN Char HISTSUB; /* auto-substitute character */
|
|
|
|
|
EXTERN Char PRCH; /* Prompt symbol for regular users */
|
|
|
|
|
EXTERN Char PRCHROOT; /* Prompt symbol for root */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* For operating systems with single case filenames (OS/2)
|
|
|
|
|
*/
|
|
|
|
|
#ifdef CASE_INSENSITIVE
|
|
|
|
|
# define samecase(x) (isupper((unsigned char)(x)) ? \
|
|
|
|
|
tolower((unsigned char)(x)) : (x))
|
|
|
|
|
#else
|
|
|
|
|
# define samecase(x) (x)
|
|
|
|
|
#endif /* CASE_INSENSITIVE */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* strings.h:
|
|
|
|
|
*/
|
|
|
|
|
#ifndef SHORT_STRINGS
|
|
|
|
|
#define Strchr(a, b) strchr(a, b)
|
|
|
|
|
#define Strrchr(a, b) strrchr(a, b)
|
|
|
|
|
#define Strcat(a, b) strcat(a, b)
|
|
|
|
|
#define Strncat(a, b, c) strncat(a, b, c)
|
|
|
|
|
#define Strcpy(a, b) strcpy(a, b)
|
|
|
|
|
#define Strncpy(a, b, c) strncpy(a, b, c)
|
|
|
|
|
#define Strlen(a) strlen(a)
|
|
|
|
|
#define Strcmp(a, b) strcmp(a, b)
|
|
|
|
|
#define Strncmp(a, b, c) strncmp(a, b, c)
|
|
|
|
|
|
|
|
|
|
#define Strspl(a, b) strspl(a, b)
|
|
|
|
|
#define Strsave(a) strsave(a)
|
|
|
|
|
#define Strend(a) strend(a)
|
|
|
|
|
#define Strstr(a, b) strstr(a, b)
|
|
|
|
|
|
|
|
|
|
#define str2short(a) (a)
|
|
|
|
|
#define blk2short(a) saveblk(a)
|
|
|
|
|
#define short2blk(a) saveblk(a)
|
|
|
|
|
#define short2str(a) strip(a)
|
|
|
|
|
#else
|
|
|
|
|
#define Strchr(a, b) s_strchr(a, b)
|
|
|
|
|
#define Strrchr(a, b) s_strrchr(a, b)
|
|
|
|
|
#define Strcat(a, b) s_strcat(a, b)
|
|
|
|
|
#define Strncat(a, b, c) s_strncat(a, b, c)
|
|
|
|
|
#define Strcpy(a, b) s_strcpy(a, b)
|
|
|
|
|
#define Strncpy(a, b, c) s_strncpy(a, b, c)
|
|
|
|
|
#define Strlen(a) s_strlen(a)
|
|
|
|
|
#define Strcmp(a, b) s_strcmp(a, b)
|
|
|
|
|
#define Strncmp(a, b, c) s_strncmp(a, b, c)
|
|
|
|
|
|
|
|
|
|
#define Strspl(a, b) s_strspl(a, b)
|
|
|
|
|
#define Strsave(a) s_strsave(a)
|
|
|
|
|
#define Strend(a) s_strend(a)
|
|
|
|
|
#define Strstr(a, b) s_strstr(a, b)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* setname is a macro to save space (see sh.err.c)
|
|
|
|
|
*/
|
|
|
|
|
EXTERN char *bname;
|
|
|
|
|
|
|
|
|
|
#define setname(a) (bname = (a))
|
|
|
|
|
|
|
|
|
|
#ifdef VFORK
|
|
|
|
|
EXTERN Char *Vsav;
|
|
|
|
|
EXTERN Char *Vdp;
|
|
|
|
|
EXTERN Char *Vexpath;
|
|
|
|
|
EXTERN char **Vt;
|
|
|
|
|
#endif /* VFORK */
|
|
|
|
|
|
|
|
|
|
EXTERN Char **evalvec;
|
|
|
|
|
EXTERN Char *evalp;
|
|
|
|
|
|
|
|
|
|
extern struct mesg {
|
|
|
|
|
char *iname; /* name from /usr/include */
|
|
|
|
|
char *pname; /* print name */
|
|
|
|
|
} mesg[];
|
|
|
|
|
|
|
|
|
|
/* word_chars is set by default to WORD_CHARS but can be overridden by
|
|
|
|
|
the worchars variable--if unset, reverts to WORD_CHARS */
|
|
|
|
|
|
|
|
|
|
EXTERN Char *word_chars;
|
|
|
|
|
|
|
|
|
|
#define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */
|
|
|
|
|
|
|
|
|
|
EXTERN Char *STR_SHELLPATH;
|
|
|
|
|
|
|
|
|
|
#ifdef _PATH_BSHELL
|
|
|
|
|
EXTERN Char *STR_BSHELL;
|
|
|
|
|
#endif
|
|
|
|
|
EXTERN Char *STR_WORD_CHARS;
|
|
|
|
|
EXTERN Char **STR_environ IZERO;
|
|
|
|
|
|
|
|
|
|
extern int dont_free; /* Tell free that we are in danger if we free */
|
|
|
|
|
|
|
|
|
|
extern Char *INVPTR;
|
|
|
|
|
extern Char **INVPPTR;
|
|
|
|
|
|
|
|
|
|
extern char *progname;
|
|
|
|
|
extern int tcsh;
|
|
|
|
|
|
|
|
|
|
#include "tc.h"
|
|
|
|
|
#include "sh.decls.h"
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* To print system call errors...
|
|
|
|
|
*/
|
|
|
|
|
#ifdef BSD4_4
|
|
|
|
|
# include <errno.h>
|
|
|
|
|
#else
|
|
|
|
|
# ifndef linux
|
|
|
|
|
# ifdef NEEDstrerror
|
|
|
|
|
extern char *sys_errlist[];
|
|
|
|
|
# endif
|
|
|
|
|
extern int errno, sys_nerr;
|
|
|
|
|
# endif /* !linux */
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-11-30 21:05:33 +00:00
|
|
|
#ifndef WINNT_NATIVE
|
2000-04-15 04:41:27 +00:00
|
|
|
# ifdef NLS_CATALOGS
|
|
|
|
|
# ifdef linux
|
|
|
|
|
# include <locale.h>
|
|
|
|
|
# ifdef notdef
|
|
|
|
|
# include <localeinfo.h> /* Has this changed ? */
|
|
|
|
|
# endif
|
|
|
|
|
# include <features.h>
|
|
|
|
|
# endif
|
|
|
|
|
# ifdef SUNOS4
|
|
|
|
|
/* Who stole my nl_types.h? :-(
|
|
|
|
|
* All this stuff is in the man pages, but nowhere else?
|
|
|
|
|
* This does not link right now...
|
|
|
|
|
*/
|
|
|
|
|
typedef void *nl_catd;
|
|
|
|
|
extern const char * catgets __P((nl_catd, int, int, const char *));
|
|
|
|
|
nl_catd catopen __P((const char *, int));
|
|
|
|
|
int catclose __P((nl_catd));
|
|
|
|
|
# else
|
|
|
|
|
# ifdef __uxps__
|
|
|
|
|
# define gettxt gettxt_ds
|
|
|
|
|
# endif
|
|
|
|
|
# include <nl_types.h>
|
|
|
|
|
# ifdef __uxps__
|
|
|
|
|
# undef gettxt
|
|
|
|
|
# endif
|
|
|
|
|
# endif
|
|
|
|
|
# ifndef MCLoadBySet
|
|
|
|
|
# define MCLoadBySet 0
|
|
|
|
|
# endif
|
|
|
|
|
EXTERN nl_catd catd;
|
|
|
|
|
# define CGETS(b, c, d) catgets(catd, b, c, d)
|
|
|
|
|
# define CSAVS(b, c, d) strsave(CGETS(b, c, d))
|
|
|
|
|
# else
|
|
|
|
|
# define CGETS(b, c, d) d
|
|
|
|
|
# define CSAVS(b, c, d) d
|
|
|
|
|
# endif
|
2000-11-30 21:05:33 +00:00
|
|
|
#else /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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# define CGETS(b, c, d) nt_cgets( b, c, d)
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# define CSAVS(b, c, d) strsave(CGETS(b, c, d))
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2000-11-30 21:05:33 +00:00
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#endif /* WINNT_NATIVE */
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2000-04-15 04:41:27 +00:00
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/*
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* Since on some machines characters are unsigned, and the signed
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* keyword is not universally implemented, we treat all characters
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* as unsigned and sign extend them where we need.
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*/
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#define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a))
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#endif /* _h_sh */
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