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Diffstat (limited to 'contrib/tcsh/sh.h')
| -rw-r--r-- | contrib/tcsh/sh.h | 1244 |
1 files changed, 0 insertions, 1244 deletions
diff --git a/contrib/tcsh/sh.h b/contrib/tcsh/sh.h deleted file mode 100644 index 55ed4cc43c1e..000000000000 --- a/contrib/tcsh/sh.h +++ /dev/null @@ -1,1244 +0,0 @@ -/* $Header: /src/pub/tcsh/sh.h,v 3.93 2000/11/19 20:50:43 christos Exp $ */ -/* - * sh.h: Catch it all globals and includes file! - */ -/*- - * Copyright (c) 1980, 1991 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#ifndef _h_sh -#define _h_sh - -#include "config.h" - -#ifndef EXTERN -# define EXTERN extern -#else /* !EXTERN */ -# ifdef WINNT_NATIVE -# define IZERO = 0 -# define IZERO_STRUCT = {0} -# endif /* WINNT_NATIVE */ -#endif /* EXTERN */ - -#ifndef IZERO -# define IZERO -#endif /* IZERO */ -#ifndef IZERO_STRUCT -# define IZERO_STRUCT -# endif /* IZERO_STRUCT */ - -#ifndef WINNT_NATIVE -# define INIT_ZERO -# define INIT_ZERO_STRUCT -# define force_read read -#endif /*!WINNT_NATIVE */ -/* - * Sanity - */ -#if defined(_POSIX_SOURCE) && !defined(POSIX) -# define POSIX -#endif - -#if defined(POSIXJOBS) && !defined(BSDJOBS) -# define BSDJOBS -#endif - -#if defined(POSIXSIGS) && !defined(BSDSIGS) -# define BSDSIGS -#endif - -#ifdef SHORT_STRINGS -typedef short Char; -typedef unsigned short uChar; -# define SAVE(a) (Strsave(str2short(a))) -#else -typedef char Char; -typedef unsigned char uChar; -# define SAVE(a) (strsave(a)) -#endif - -/* Elide unused argument warnings */ -#define USE(a) (void) (a) -/* - * 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 - */ -#ifdef SIGVOID -# if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__) -# define sigret_t void -# else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */ -typedef void sigret_t; -# endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */ -#else /* !SIGVOID */ -typedef int sigret_t; -#endif /* SIGVOID */ - -/* - * Return true if the path is absolute - */ -#ifndef WINNT_NATIVE -# define ABSOLUTEP(p) (*(p) == '/') -#else /* WINNT_NATIVE */ -# define ABSOLUTEP(p) ((p)[0] == '/' || \ - (Isalpha((p)[0]) && (p)[1] == ':' && (p)[2] == '/')) -#endif /* WINNT_NATIVE */ - -/* - * Fundamental definitions which may vary from system to system. - * - * BUFSIZE The i/o buffering size; also limits word size - * MAILINTVL How often to mailcheck; more often is more expensive - */ -#ifdef BUFSIZE -# if BUFSIZE < 4096 -# undef BUFSIZE -# define BUFSIZE 4096 /* buffer size should be no less than this */ -# endif -#else -# define BUFSIZE 4096 -#endif /* BUFSIZE */ - -#define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ -#define MAILINTVL 600 /* 10 minutes */ - -#ifndef INBUFSIZE -# define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ -#endif /* INBUFSIZE */ - - -/* - * What our builtin echo looks like - */ -#define NONE_ECHO 0 -#define BSD_ECHO 1 -#define SYSV_ECHO 2 -#define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) - -#ifndef ECHO_STYLE -# if SYSVREL > 0 -# define ECHO_STYLE SYSV_ECHO -# else /* SYSVREL == 0 */ -# define ECHO_STYLE BSD_ECHO -# endif /* SYSVREL */ -#endif /* ECHO_STYLE */ - -/* - * The shell moves std in/out/diag and the old std input away from units - * 0, 1, and 2 so that it is easy to set up these standards for invoked - * commands. - */ -#define FSHTTY 15 /* /dev/tty when manip pgrps */ -#define FSHIN 16 /* Preferred desc for shell input */ -#define FSHOUT 17 /* ... shell output */ -#define FSHDIAG 18 /* ... shell diagnostics */ -#define FOLDSTD 19 /* ... old std input */ - -#ifdef PROF -#define xexit(n) done(n) -#endif - -#ifdef cray -# define word word_t /* sys/types.h defines word.. bad move! */ -#endif - -#include <sys/types.h> - -#ifdef cray -# undef word -#endif - -/* - * Path separator in environment variables - */ -#ifndef PATHSEP -# if defined(__EMX__) || defined(WINNT_NATIVE) -# define PATHSEP ';' -# else /* unix */ -# define PATHSEP ':' -# endif /* __EMX__ || WINNT_NATIVE */ -#endif /* !PATHSEP */ - -#ifdef __HP_CXD_SPP -# include <sys/cnx_stat.h> -# define stat stat64 -# define fstat fstat64 -# define lstat lstat64 -#endif /* __HP_CXD_SPP */ - -/* - * This macro compares the st_dev field of struct stat. On aix on ibmESA - * st_dev is a structure, so comparison does not work. - */ -#ifndef DEV_DEV_COMPARE -# define DEV_DEV_COMPARE(x,y) ((x) == (y)) -#endif /* DEV_DEV_COMPARE */ - -#ifdef _SEQUENT_ -# include <sys/procstats.h> -#endif /* _SEQUENT_ */ -#if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) -# include <sys/times.h> -#endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ - -#ifdef NLS -# include <locale.h> -#endif /* NLS */ - - -#if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) -# include <sys/param.h> -#endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ -#include <sys/stat.h> - -#if defined(BSDTIMES) || defined(BSDLIMIT) -# include <sys/time.h> -# if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) -# include "/usr/ucbinclude/sys/resource.h" -# else -# ifdef convex -# define sysrusage cvxrusage -# include <sys/sysinfo.h> -# else -# define sysrusage rusage -# include <sys/resource.h> -# endif /* convex */ -# endif /* SYSVREL>3 */ -#endif /* BSDTIMES */ - -#ifndef WINNT_NATIVE -# ifndef POSIX -# ifdef TERMIO -# include <termio.h> -# else /* SGTTY */ -# include <sgtty.h> -# endif /* TERMIO */ -# else /* POSIX */ -# ifndef _UWIN -# include <termios.h> -# else -# include <termio.h> -# endif /* _UWIN */ -# if SYSVREL > 3 -# undef TIOCGLTC /* we don't need those, since POSIX has them */ -# undef TIOCSLTC -# undef CSWTCH -# define CSWTCH _POSIX_VDISABLE /* So job control works */ -# endif /* SYSVREL > 3 */ -# endif /* POSIX */ -#endif /* WINNT_NATIVE */ - -#ifdef sonyrisc -# include <sys/ttold.h> -#endif /* sonyrisc */ - -#if defined(POSIX) && !defined(WINNT_NATIVE) -/* - * We should be using setpgid and setpgid - * by now, but in some systems we use the - * old routines... - */ -# define getpgrp __getpgrp -# define setpgrp __setpgrp -# include <unistd.h> -# undef getpgrp -# undef setpgrp - -/* - * the gcc+protoize version of <stdlib.h> - * redefines malloc(), so we define the following - * to avoid it. - */ -# if defined(linux) || defined(sgi) || defined(_OSD_POSIX) -# define NO_FIX_MALLOC -# include <stdlib.h> -# else /* linux */ -# define _GNU_STDLIB_H -# define malloc __malloc -# define free __free -# define calloc __calloc -# define realloc __realloc -# include <stdlib.h> -# undef malloc -# undef free -# undef calloc -# undef realloc -# endif /* linux || sgi */ -# include <limits.h> -#endif /* POSIX && !WINNT_NATIVE */ - -#if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) -# 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)) -# if !defined(COHERENT) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) -# include <sys/ioctl.h> -# endif -#endif - -#if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) -#undef CSWTCH -#define CSWTCH _POSIX_VDISABLE -#endif - -#if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) -# include <sys/filio.h> -#endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ - -#if !defined(_MINIX) && !defined(COHERENT) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) -# include <sys/file.h> -#endif /* !_MINIX && !COHERENT && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ - -#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 */ -#ifndef WINNT_NATIVE -#include <pwd.h> -#include <grp.h> -#endif /* WINNT_NATIVE */ -#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> -# if defined(_SS_SIZE) || defined(_SS_MAXSIZE) -# define INET6 -# endif -# 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; - -/* - * ASCII vs. EBCDIC - */ -#if 'Z' - 'A' == 25 -# ifndef IS_ASCII -# define IS_ASCII -# endif -#endif - -#include "sh.types.h" - -#ifndef WINNT_NATIVE -# 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)); -#endif /* !WINNT_NATIVE */ - -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 -# define MAXHOSTNAMELEN 255 -# 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 */ -#ifndef BSD4_4 -extern int errno; /* Error from C library routines */ -#endif -extern int exitset; -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_ */ -EXTERN long seconds0; -#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; -#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 */ - 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; -#ifdef WINNT_NATIVE -extern struct biltins nt_bfunc[]; -extern int nt_nbfunc; -#endif /* WINNT_NATIVE*/ - -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 - -#ifndef WINNT_NATIVE -# 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 -#else /* WINNT_NATIVE */ -# define CGETS(b, c, d) nt_cgets( b, c, d) -# define CSAVS(b, c, d) strsave(CGETS(b, c, d)) -#endif /* WINNT_NATIVE */ - -/* - * Since on some machines characters are unsigned, and the signed - * keyword is not universally implemented, we treat all characters - * as unsigned and sign extend them where we need. - */ -#define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) - -#endif /* _h_sh */ |