159243Sobrien/* 259243Sobrien * sh.h: Catch it all globals and includes file! 359243Sobrien */ 459243Sobrien/*- 559243Sobrien * Copyright (c) 1980, 1991 The Regents of the University of California. 659243Sobrien * All rights reserved. 759243Sobrien * 859243Sobrien * Redistribution and use in source and binary forms, with or without 959243Sobrien * modification, are permitted provided that the following conditions 1059243Sobrien * are met: 1159243Sobrien * 1. Redistributions of source code must retain the above copyright 1259243Sobrien * notice, this list of conditions and the following disclaimer. 1359243Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1459243Sobrien * notice, this list of conditions and the following disclaimer in the 1559243Sobrien * documentation and/or other materials provided with the distribution. 16100616Smp * 3. Neither the name of the University nor the names of its contributors 1759243Sobrien * may be used to endorse or promote products derived from this software 1859243Sobrien * without specific prior written permission. 1959243Sobrien * 2059243Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2159243Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2259243Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2359243Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2459243Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2559243Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2659243Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2759243Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2859243Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2959243Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3059243Sobrien * SUCH DAMAGE. 3159243Sobrien */ 3259243Sobrien#ifndef _h_sh 3359243Sobrien#define _h_sh 3459243Sobrien 3559243Sobrien#include "config.h" 3659243Sobrien 37145479Smp#include <stddef.h> 38167465Smp#include <signal.h> 39145479Smp 40145479Smp#ifdef HAVE_ICONV 41145479Smp# include <iconv.h> 42100616Smp#endif 43145479Smp 44145479Smp#ifdef HAVE_STDINT_H 45145479Smp# include <stdint.h> 46100616Smp#endif 47100616Smp 48145479Smp#ifdef HAVE_INTTYPES_H 49145479Smp# include <inttypes.h> 50145479Smp#endif 51145479Smp 52145479Smp#if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE) 53145479Smptypedef unsigned long intptr_t; 54145479Smp#endif 55145479Smp 5659243Sobrien#ifndef EXTERN 5759243Sobrien# define EXTERN extern 5859243Sobrien#else /* !EXTERN */ 5969408Sache# ifdef WINNT_NATIVE 6059243Sobrien# define IZERO = 0 6159243Sobrien# define IZERO_STRUCT = {0} 6269408Sache# endif /* WINNT_NATIVE */ 6359243Sobrien#endif /* EXTERN */ 6459243Sobrien 6559243Sobrien#ifndef IZERO 6659243Sobrien# define IZERO 6759243Sobrien#endif /* IZERO */ 6859243Sobrien#ifndef IZERO_STRUCT 6959243Sobrien# define IZERO_STRUCT 70145479Smp#endif /* IZERO_STRUCT */ 7159243Sobrien 7269408Sache#ifndef WINNT_NATIVE 7359243Sobrien# define INIT_ZERO 7459243Sobrien# define INIT_ZERO_STRUCT 75167465Smp# define force_read xread 7669408Sache#endif /*!WINNT_NATIVE */ 77231990Smp 78231990Smp#if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET) 79231990Smp#define AUTOSET_KANJI 80231990Smp#endif 8159243Sobrien/* 8259243Sobrien * Sanity 8359243Sobrien */ 8459243Sobrien#if defined(_POSIX_SOURCE) && !defined(POSIX) 8559243Sobrien# define POSIX 8659243Sobrien#endif 8759243Sobrien 8859243Sobrien#if defined(POSIXJOBS) && !defined(BSDJOBS) 8959243Sobrien# define BSDJOBS 9059243Sobrien#endif 9159243Sobrien 92231990Smp#define TMP_TEMPLATE ".XXXXXX" 93231990Smp 9459243Sobrien#ifdef SHORT_STRINGS 95167465Smp# ifdef WIDE_STRINGS 96145479Smp#include <wchar.h> 97231990Smp# ifdef UTF16_STRINGS 98231990Smptypedef wint_t Char; 99231990Smp# else 100145479Smptypedef wchar_t Char; 101231990Smp#endif 102145479Smptypedef unsigned long uChar; 103145479Smptypedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 104145479Smp#define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 105145479Smp#define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 106231990Smp#define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 107145479Smp# else 10859243Sobrientypedef short Char; 10959243Sobrientypedef unsigned short uChar; 110145479Smptypedef int eChar; 111145479Smp#define CHAR_ERR (-1) 112145479Smp#define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 113145479Smp#define reset_mbtowc() ((void)0) 114145479Smp# endif 11559243Sobrien# define SAVE(a) (Strsave(str2short(a))) 11659243Sobrien#else 11759243Sobrientypedef char Char; 11859243Sobrientypedef unsigned char uChar; 119145479Smptypedef int eChar; 120145479Smp#define CHAR_ERR (-1) 121145479Smp#define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 122145479Smp#define reset_mbtowc() ((void)0) 12359243Sobrien# define SAVE(a) (strsave(a)) 124145479Smp#endif 12559243Sobrien 126231990Smp#if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 127231990Smp#define __inline 128231990Smp#endif 129316957Sdchagin#ifdef _MSC_VER 130316957Sdchagin#define TCSH_PTRDIFF_T_FMT "I" 131316957Sdchagin#else 132316957Sdchagin#define TCSH_PTRDIFF_T_FMT "t" 133316957Sdchagin#endif 13459243Sobrien/* Elide unused argument warnings */ 13559243Sobrien#define USE(a) (void) (a) 136231990Smp#define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a) 137231990Smpstatic __inline void tcsh_ignore(intptr_t a) 138195609Smp{ 139195609Smp USE(a); 140195609Smp} 14159243Sobrien 14259243Sobrien/* 14359243Sobrien * Return true if the path is absolute 14459243Sobrien */ 145131962Smp#if defined(WINNT_NATIVE) 146100616Smp# define ABSOLUTEP(p) ((p)[0] == '/' || \ 147100616Smp (Isalpha((p)[0]) && (p)[1] == ':')) 148131962Smp#elif defined(__CYGWIN__) 149131962Smp# define ABSOLUTEP(p) ((p)[0] == '/' || \ 150131962Smp (Isalpha((p)[0]) && (p)[1] == ':' && \ 151131962Smp ((p)[2] == '\0' || (p)[2] == '/'))) 152100616Smp#else /* !WINNT_NATIVE && !__CYGWIN__ */ 15359243Sobrien# define ABSOLUTEP(p) (*(p) == '/') 154100616Smp#endif /* WINNT_NATIVE || __CYGWIN__ */ 15559243Sobrien 15659243Sobrien/* 15759243Sobrien * Fundamental definitions which may vary from system to system. 15859243Sobrien * 15959243Sobrien * BUFSIZE The i/o buffering size; also limits word size 16059243Sobrien * MAILINTVL How often to mailcheck; more often is more expensive 16159243Sobrien */ 16259243Sobrien#ifdef BUFSIZE 16361524Sobrien# if BUFSIZE < 4096 16459243Sobrien# undef BUFSIZE 16561524Sobrien# define BUFSIZE 4096 /* buffer size should be no less than this */ 16659243Sobrien# endif 16759243Sobrien#else 16861524Sobrien# define BUFSIZE 4096 16959243Sobrien#endif /* BUFSIZE */ 17059243Sobrien 17159243Sobrien#define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 17259243Sobrien#define MAILINTVL 600 /* 10 minutes */ 17359243Sobrien 17459243Sobrien#ifndef INBUFSIZE 17559243Sobrien# define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 17659243Sobrien#endif /* INBUFSIZE */ 17759243Sobrien 17859243Sobrien 17959243Sobrien/* 18059243Sobrien * What our builtin echo looks like 18159243Sobrien */ 18259243Sobrien#define NONE_ECHO 0 18359243Sobrien#define BSD_ECHO 1 18459243Sobrien#define SYSV_ECHO 2 18559243Sobrien#define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 18659243Sobrien 18759243Sobrien#ifndef ECHO_STYLE 18859243Sobrien# if SYSVREL > 0 18959243Sobrien# define ECHO_STYLE SYSV_ECHO 19059243Sobrien# else /* SYSVREL == 0 */ 19159243Sobrien# define ECHO_STYLE BSD_ECHO 19259243Sobrien# endif /* SYSVREL */ 19359243Sobrien#endif /* ECHO_STYLE */ 19459243Sobrien 195316957Sdchagin/* values for noclobber */ 196316957Sdchagin#define NOCLOBBER_DEFAULT 1 197316957Sdchagin#define NOCLOBBER_NOTEMPTY 2 198316957Sdchagin#define NOCLOBBER_ASK 4 199316957Sdchagin 20059243Sobrien/* 20159243Sobrien * The shell moves std in/out/diag and the old std input away from units 20259243Sobrien * 0, 1, and 2 so that it is easy to set up these standards for invoked 20359243Sobrien * commands. 20459243Sobrien */ 205145479Smp#define FSAFE 5 /* We keep the first 5 descriptors untouched */ 20659243Sobrien#define FSHTTY 15 /* /dev/tty when manip pgrps */ 20759243Sobrien#define FSHIN 16 /* Preferred desc for shell input */ 20859243Sobrien#define FSHOUT 17 /* ... shell output */ 20959243Sobrien#define FSHDIAG 18 /* ... shell diagnostics */ 21059243Sobrien#define FOLDSTD 19 /* ... old std input */ 21159243Sobrien 21259243Sobrien#ifdef PROF 21359243Sobrien#define xexit(n) done(n) 21459243Sobrien#endif 21559243Sobrien 21659243Sobrien#ifdef cray 21759243Sobrien# define word word_t /* sys/types.h defines word.. bad move! */ 21859243Sobrien#endif 21959243Sobrien 22059243Sobrien#include <sys/types.h> 22159243Sobrien 22259243Sobrien#ifdef cray 22359243Sobrien# undef word 22459243Sobrien#endif 22559243Sobrien 22659243Sobrien/* 22759243Sobrien * Path separator in environment variables 22859243Sobrien */ 22959243Sobrien#ifndef PATHSEP 23069408Sache# if defined(__EMX__) || defined(WINNT_NATIVE) 23159243Sobrien# define PATHSEP ';' 23259243Sobrien# else /* unix */ 23359243Sobrien# define PATHSEP ':' 23469408Sache# endif /* __EMX__ || WINNT_NATIVE */ 23559243Sobrien#endif /* !PATHSEP */ 23659243Sobrien 23783098Smp#if defined(__HP_CXD_SPP) && !defined(__hpux) 23859243Sobrien# include <sys/cnx_stat.h> 23959243Sobrien# define stat stat64 24059243Sobrien# define fstat fstat64 24159243Sobrien# define lstat lstat64 24283098Smp#endif /* __HP_CXD_SPP && !__hpux */ 24359243Sobrien 244231990Smp#ifdef HAVE_LONG_LONG 245231990Smptypedef long long tcsh_number_t; 246231990Smp#else 247231990Smptypedef long tcsh_number_t; 248231990Smp#endif 24959243Sobrien/* 25059243Sobrien * This macro compares the st_dev field of struct stat. On aix on ibmESA 25159243Sobrien * st_dev is a structure, so comparison does not work. 25259243Sobrien */ 25359243Sobrien#ifndef DEV_DEV_COMPARE 25459243Sobrien# define DEV_DEV_COMPARE(x,y) ((x) == (y)) 25559243Sobrien#endif /* DEV_DEV_COMPARE */ 25659243Sobrien 25759243Sobrien#ifdef _SEQUENT_ 25859243Sobrien# include <sys/procstats.h> 25959243Sobrien#endif /* _SEQUENT_ */ 26069408Sache#if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 26159243Sobrien# include <sys/times.h> 26269408Sache#endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 26359243Sobrien 26459243Sobrien#ifdef NLS 26559243Sobrien# include <locale.h> 26659243Sobrien#endif /* NLS */ 26759243Sobrien 26869408Sache#if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 26959243Sobrien# include <sys/param.h> 27069408Sache#endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 27159243Sobrien#include <sys/stat.h> 27259243Sobrien 27359243Sobrien#if defined(BSDTIMES) || defined(BSDLIMIT) 27459243Sobrien# include <sys/time.h> 27569408Sache# if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 27659243Sobrien# include "/usr/ucbinclude/sys/resource.h" 27759243Sobrien# else 27859243Sobrien# ifdef convex 27959243Sobrien# define sysrusage cvxrusage 28059243Sobrien# include <sys/sysinfo.h> 28159243Sobrien# else 28259243Sobrien# define sysrusage rusage 28359243Sobrien# include <sys/resource.h> 28459243Sobrien# endif /* convex */ 28559243Sobrien# endif /* SYSVREL>3 */ 28659243Sobrien#endif /* BSDTIMES */ 28759243Sobrien 28869408Sache#ifndef WINNT_NATIVE 28959243Sobrien# ifndef POSIX 29059243Sobrien# ifdef TERMIO 29159243Sobrien# include <termio.h> 29259243Sobrien# else /* SGTTY */ 29359243Sobrien# include <sgtty.h> 29459243Sobrien# endif /* TERMIO */ 29559243Sobrien# else /* POSIX */ 29659243Sobrien# ifndef _UWIN 29759243Sobrien# include <termios.h> 29859243Sobrien# else 29959243Sobrien# include <termio.h> 30059243Sobrien# endif /* _UWIN */ 301231990Smp# if SYSVREL > 3 || defined(__linux__) 30259243Sobrien# undef TIOCGLTC /* we don't need those, since POSIX has them */ 30359243Sobrien# undef TIOCSLTC 30459243Sobrien# undef CSWTCH 30559243Sobrien# define CSWTCH _POSIX_VDISABLE /* So job control works */ 30659243Sobrien# endif /* SYSVREL > 3 */ 30759243Sobrien# endif /* POSIX */ 30869408Sache#endif /* WINNT_NATIVE */ 30959243Sobrien 31059243Sobrien#ifdef sonyrisc 31159243Sobrien# include <sys/ttold.h> 31259243Sobrien#endif /* sonyrisc */ 31359243Sobrien 31469408Sache#if defined(POSIX) && !defined(WINNT_NATIVE) 31559243Sobrien# include <unistd.h> 31659243Sobrien 31759243Sobrien/* 31859243Sobrien * the gcc+protoize version of <stdlib.h> 31959243Sobrien * redefines malloc(), so we define the following 32059243Sobrien * to avoid it. 32159243Sobrien */ 322231990Smp# if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 32359243Sobrien# define NO_FIX_MALLOC 32459243Sobrien# include <stdlib.h> 325145479Smp# else /* glibc */ 32659243Sobrien# define _GNU_STDLIB_H 32759243Sobrien# define malloc __malloc 32859243Sobrien# define free __free 32959243Sobrien# define calloc __calloc 33059243Sobrien# define realloc __realloc 33159243Sobrien# include <stdlib.h> 33259243Sobrien# undef malloc 33359243Sobrien# undef free 33459243Sobrien# undef calloc 33559243Sobrien# undef realloc 336145479Smp# endif /* glibc || sgi */ 33769408Sache#endif /* POSIX && !WINNT_NATIVE */ 338167465Smp#include <limits.h> 33959243Sobrien 340231990Smp#if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 34159243Sobrien# if !defined(pyr) && !defined(stellar) 34259243Sobrien# include <time.h> 34359243Sobrien# ifdef _MINIX 34459243Sobrien# define HZ CLOCKS_PER_SEC 34559243Sobrien# endif /* _MINIX */ 34659243Sobrien# endif /* !pyr && !stellar */ 34759243Sobrien#endif /* SYSVREL > 0 || _IBMR2 */ 34859243Sobrien 34959243Sobrien/* In the following ifdef the DECOSF1 has been commented so that later 35059243Sobrien * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 35159243Sobrien */ 35259243Sobrien#if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 353167465Smp# if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 35459243Sobrien# include <sys/ioctl.h> 355231990Smp# if SYSVREL > 3 || defined(__linux__) 356231990Smp# undef TIOCGLTC /* we don't need those, since POSIX has them */ 357231990Smp# undef TIOCSLTC 358231990Smp# undef CSWTCH 359231990Smp# define CSWTCH _POSIX_VDISABLE /* So job control works */ 360231990Smp# endif /* SYSVREL > 3 */ 36159243Sobrien# endif 36259243Sobrien#endif 36359243Sobrien 36459243Sobrien#if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 36559243Sobrien#undef CSWTCH 36659243Sobrien#define CSWTCH _POSIX_VDISABLE 36759243Sobrien#endif 36859243Sobrien 36969408Sache#if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 37059243Sobrien# include <sys/filio.h> 37159243Sobrien#endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 37259243Sobrien 373167465Smp#if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 37459243Sobrien# include <sys/file.h> 375167465Smp#endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 37659243Sobrien 37759243Sobrien#if !defined(O_RDONLY) || !defined(O_NDELAY) 37859243Sobrien# include <fcntl.h> 37959243Sobrien#endif 38059243Sobrien 38159243Sobrien#include <errno.h> 38259243Sobrien 38359243Sobrien#include <setjmp.h> 38459243Sobrien 385167465Smp#include <stdarg.h> 38659243Sobrien 387145479Smp#ifdef HAVE_DIRENT_H 38859243Sobrien# include <dirent.h> 38959243Sobrien#else 390145479Smp# ifdef HAVE_NDIR_H 39159243Sobrien# include <ndir.h> 39259243Sobrien# else 39359243Sobrien# include <sys/dir.h> 39459243Sobrien# endif 39559243Sobrien# define dirent direct 396145479Smp#endif /* HAVE_DIRENT_H */ 397145479Smp#ifndef HAVE_STRUCT_DIRENT_D_INO 398145479Smp# define d_ino d_fileno 399145479Smp#endif 400167465Smp#if defined(hpux) || defined(sgi) || defined(OREO) 40159243Sobrien# include <stdio.h> /* So the fgetpwent() prototypes work */ 402167465Smp#endif /* hpux || sgi || OREO */ 40369408Sache#ifndef WINNT_NATIVE 40459243Sobrien#include <pwd.h> 40559243Sobrien#include <grp.h> 40669408Sache#endif /* WINNT_NATIVE */ 407145479Smp#ifdef HAVE_SHADOW_H 40859243Sobrien# include <shadow.h> 409145479Smp#endif /* HAVE_SHADOW_H */ 410145479Smp#ifdef HAVE_AUTH_H 41159243Sobrien# include <auth.h> 412145479Smp#endif /* HAVE_AUTH_H */ 41359243Sobrien#if defined(BSD) && !defined(POSIX) 41459243Sobrien# include <strings.h> 41559243Sobrien# define strchr(a, b) index(a, b) 41659243Sobrien# define strrchr(a, b) rindex(a, b) 41759243Sobrien#else 41859243Sobrien# include <string.h> 41959243Sobrien#endif /* BSD */ 42059243Sobrien 42159243Sobrien/* 42259243Sobrien * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 42359243Sobrien * include it yet, so we include it here 42459243Sobrien */ 42559243Sobrien#if defined(sgi) && SYSVREL > 3 42659243Sobrien# include <sys/cdefs.h> 42759243Sobrien#endif /* sgi && SYSVREL > 3 */ 42859243Sobrien 42959243Sobrien#ifdef REMOTEHOST 43059243Sobrien# ifdef ISC 43159243Sobrien# undef MAXHOSTNAMELEN /* Busted headers? */ 43259243Sobrien# endif 43359243Sobrien 43459243Sobrien# include <netinet/in.h> 43559243Sobrien# include <arpa/inet.h> 43659243Sobrien# include <sys/socket.h> 437145479Smp# if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 438100616Smp# if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 439100616Smp# if !defined(sgi) 440316957Sdchagin# define INET6 441100616Smp# endif /* sgi */ 442100616Smp# endif /* __APPLE__ */ 44369408Sache# endif 44459243Sobrien# include <sys/uio.h> /* For struct iovec */ 44559243Sobrien#endif /* REMOTEHOST */ 44659243Sobrien 44759243Sobrien#ifdef PURIFY 44859243Sobrien/* exit normally, allowing purify to trace leaks */ 44959243Sobrien# define _exit exit 450316957Sdchagin#endif /* !PURIFY */ 45159243Sobrien 45269408Sache/* 45369408Sache * ASCII vs. EBCDIC 45469408Sache */ 45569408Sache#if 'Z' - 'A' == 25 45669408Sache# ifndef IS_ASCII 45769408Sache# define IS_ASCII 45869408Sache# endif 45969408Sache#endif 46069408Sache 46159243Sobrien#include "sh.types.h" 46259243Sobrien 463167465Smp#if !HAVE_DECL_GETPGRP 464145479Smp# ifndef GETPGRP_VOID 465167465Smpextern pid_t getpgrp (int); 466145479Smp# else 467167465Smpextern pid_t getpgrp (void); 468145479Smp# endif 469145479Smp#endif 47059243Sobrien 47159243Sobrien#ifndef lint 47259243Sobrientypedef ptr_t memalign_t; 47359243Sobrien#else 47459243Sobrientypedef union { 47559243Sobrien char am_char, *am_char_p; 47659243Sobrien short am_short, *am_short_p; 47759243Sobrien int am_int, *am_int_p; 47859243Sobrien long am_long, *am_long_p; 47959243Sobrien float am_float, *am_float_p; 48059243Sobrien double am_double, *am_double_p; 48159243Sobrien} *memalign_t; 48259243Sobrien 48359243Sobrien# define malloc lint_malloc 48459243Sobrien# define free lint_free 48559243Sobrien# define realloc lint_realloc 48659243Sobrien# define calloc lint_calloc 48759243Sobrien#endif 48859243Sobrien 489167465Smp#ifdef SYSMALLOC 490167465Smp# define xmalloc(i) smalloc(i) 491167465Smp# define xrealloc(p, i) srealloc(p, i) 492167465Smp# define xcalloc(n, s) scalloc(n, s) 493167465Smp# define xfree sfree 49459243Sobrien#else 495167465Smp# define xmalloc(i) malloc(i) 496167465Smp# define xrealloc(p, i) realloc(p, i) 497167465Smp# define xcalloc(n, s) calloc(n, s) 498167465Smp# define xfree free 499167465Smp#endif /* SYSMALLOC */ 50059243Sobrien#include "sh.char.h" 50159243Sobrien#include "sh.err.h" 50259243Sobrien#include "sh.dir.h" 50359243Sobrien#include "sh.proc.h" 50459243Sobrien 50559243Sobrien#include "pathnames.h" 50659243Sobrien 50759243Sobrien 50859243Sobrien/* 50959243Sobrien * C shell 51059243Sobrien * 51159243Sobrien * Bill Joy, UC Berkeley 51259243Sobrien * October, 1978; May 1980 51359243Sobrien * 51459243Sobrien * Jim Kulp, IIASA, Laxenburg Austria 51559243Sobrien * April, 1980 51659243Sobrien */ 51759243Sobrien 51859243Sobrien#ifdef HESIOD 51959243Sobrien# include <hesiod.h> 52059243Sobrien#endif /* HESIOD */ 52159243Sobrien 52259243Sobrien#ifdef REMOTEHOST 52359243Sobrien# include <netdb.h> 52459243Sobrien#endif /* REMOTEHOST */ 52559243Sobrien 52659243Sobrien#ifndef MAXHOSTNAMELEN 527167465Smp# ifdef HOST_NAME_MAX 528167465Smp# define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 529167465Smp# elif defined(SCO) && (SYSVREL > 3) 53059243Sobrien# include <sys/socket.h> 53159243Sobrien# else 53283098Smp# define MAXHOSTNAMELEN 256 53359243Sobrien# endif 53459243Sobrien#endif /* MAXHOSTNAMELEN */ 53559243Sobrien 53659243Sobrien 53759243Sobrien 53859243Sobrien#define eq(a, b) (Strcmp(a, b) == 0) 53959243Sobrien 54059243Sobrien/* globone() flags */ 54159243Sobrien#define G_ERROR 0 /* default action: error if multiple words */ 54259243Sobrien#define G_IGNORE 1 /* ignore the rest of the words */ 54359243Sobrien#define G_APPEND 2 /* make a sentence by cat'ing the words */ 54459243Sobrien 54559243Sobrien/* 54659243Sobrien * Global flags 54759243Sobrien */ 548145479SmpEXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 54959243Sobrien 55059243Sobrien#if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 55159243Sobrien# define CLOSE_ON_EXEC 55259243Sobrien#else 553145479SmpEXTERN int didcch IZERO; /* Have closed unused fd's for child */ 55459243Sobrien#endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 55559243Sobrien 556145479SmpEXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 557145479SmpEXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 558145479SmpEXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 559145479SmpEXTERN int child IZERO; /* Child shell ... errors cause exit */ 560145479SmpEXTERN int haderr IZERO; /* Reset was because of an error */ 561145479SmpEXTERN int intty IZERO; /* Input is a tty */ 562145479SmpEXTERN int intact IZERO; /* We are interactive... therefore prompt */ 563145479SmpEXTERN int justpr IZERO; /* Just print because of :p hist mod */ 564145479SmpEXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 565145479SmpEXTERN int neednote IZERO; /* Need to pnotify() */ 566145479SmpEXTERN int noexec IZERO; /* Don't execute, just syntax check */ 567145479SmpEXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 568145479SmpEXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 569316957SdchaginEXTERN int handle_interrupt IZERO;/* Are we currently handling an interrupt? */ 570145479SmpEXTERN int havhash IZERO; /* path hashing is available */ 571145479SmpEXTERN int editing IZERO; /* doing filename expansion and line editing */ 572145479SmpEXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 573145479SmpEXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 574231990SmpEXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 575195609SmpEXTERN int compat_expr IZERO;/* csh-style expressions? */ 576145479SmpEXTERN int isoutatty IZERO; /* is SHOUT a tty */ 577145479SmpEXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 578145479SmpEXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 579145479SmpEXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 580145479SmpEXTERN int arun IZERO; /* Currently running multi-line-aliases */ 581316957SdchaginEXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 582316957SdchaginEXTERN int cdtohome IZERO; /* cd without args goes home */ 583145479SmpEXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 584316957SdchaginEXTERN int no_clobber IZERO; /* no clobber enabled? 1=yes 2=notempty, 4=ask*/ 585167465Smp/* We received a window change event */ 586167465SmpEXTERN volatile sig_atomic_t windowchg IZERO; 587145479Smp#if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 588145479SmpEXTERN int dspmbyte_ls; 589145479Smp#endif 59059243Sobrien 59159243Sobrien/* 59259243Sobrien * Global i/o info 59359243Sobrien */ 59459243SobrienEXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 59559243SobrienEXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 59659243Sobrienextern Char *ffile; /* Name of shell file for $0 */ 597145479Smpextern int dolzero; /* if $?0 should return true... */ 59859243Sobrien 59959243Sobrienextern char *seterr; /* Error message from scanner/parser */ 600145479Smp#ifndef errno 60159243Sobrienextern int errno; /* Error from C library routines */ 60269408Sache#endif 60369408Sacheextern int exitset; 604167465Smp/* Temp name for << shell files in /tmp, for xfree() */ 605167465SmpEXTERN Char *shtemp IZERO; 60659243Sobrien 60759243Sobrien#ifdef BSDTIMES 60859243SobrienEXTERN struct timeval time0; /* Time at which the shell started */ 60959243SobrienEXTERN struct sysrusage ru0; 61059243Sobrien#else 61159243Sobrien# ifdef _SEQUENT_ 61259243SobrienEXTERN timeval_t time0; /* time at which shell started */ 61359243SobrienEXTERN struct process_stats ru0; 61459243Sobrien# else /* _SEQUENT_ */ 61559243Sobrien# ifndef POSIX 61659243SobrienEXTERN time_t time0; /* time at which shell started */ 61759243Sobrien# else /* POSIX */ 61859243SobrienEXTERN clock_t time0; /* time at which shell started */ 61959243SobrienEXTERN clock_t clk_tck; 62059243Sobrien# endif /* POSIX */ 62159243SobrienEXTERN struct tms shtimes; /* shell and child times for process timing */ 62259243Sobrien# endif /* _SEQUENT_ */ 623167465SmpEXTERN time_t seconds0; 62459243Sobrien#endif /* BSDTIMES */ 62559243Sobrien 62659243Sobrien#ifndef HZ 62759243Sobrien# define HZ 100 /* for division into seconds */ 62859243Sobrien#endif 62959243Sobrien 63059243Sobrien/* 63159243Sobrien * Miscellany 63259243Sobrien */ 633316957SdchaginEXTERN pid_t mainpid; /* pid of the main shell ($$) */ 63459243SobrienEXTERN Char *doldol; /* Character pid for $$ */ 635167465SmpEXTERN pid_t backpid; /* pid of the last background job */ 63659243Sobrien 637316957Sdchagin 63859243Sobrien/* 63959243Sobrien * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 64059243Sobrien * cause pid's could be unsigned and that would break our -1 flag, and 64159243Sobrien * uid_t and gid_t are not defined in all the systems so I would have to 64259243Sobrien * make special cases for them. In the future... 64359243Sobrien */ 644145479SmpEXTERN uid_t uid, euid; /* Invokers real and effective */ 645145479SmpEXTERN gid_t gid, egid; /* User and group ids */ 646145479SmpEXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 64759243Sobrien shpgrp, /* Pgrp of shell */ 64859243Sobrien tpgrp; /* Terminal process group */ 64959243Sobrien /* If tpgrp is -1, leave tty alone! */ 65059243Sobrien 651167465SmpEXTERN Char *Prompt; /* The actual printed prompt or NULL */ 652167465SmpEXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 65359243Sobrien 65459243Sobrien/* 65559243Sobrien * To be able to redirect i/o for builtins easily, the shell moves the i/o 65659243Sobrien * descriptors it uses away from 0,1,2. 65759243Sobrien * Ideally these should be in units which are closed across exec's 65859243Sobrien * (this saves work) but for version 6, this is not usually possible. 65959243Sobrien * The desired initial values for these descriptors are defined in 66059243Sobrien * sh.local.h. 66159243Sobrien */ 66259243SobrienEXTERN int SHIN IZERO; /* Current shell input (script) */ 66359243SobrienEXTERN int SHOUT IZERO; /* Shell output */ 66459243SobrienEXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 66559243SobrienEXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 66659243Sobrien 66759243Sobrien 668231990Smp#if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__) 66959243Sobrien/* 67059243Sobrien * From: fadden@uts.amdahl.com (Andy McFadden) 67159243Sobrien * we need sigsetjmp for UTS4, but not UTS2.1 67259243Sobrien */ 67359243Sobrien# define SIGSETJMP 67459243Sobrien#endif 67559243Sobrien 67659243Sobrien/* 67759243Sobrien * Error control 67859243Sobrien * 67959243Sobrien * Errors in scanning and parsing set up an error message to be printed 68059243Sobrien * at the end and complete. Other errors always cause a reset. 68159243Sobrien * Because of source commands and .cshrc we need nested error catches. 68259243Sobrien */ 68359243Sobrien 684167465Smp#ifdef SIGSETJMP 685354195Sbrooks typedef struct { const char *f; size_t l; sigjmp_buf j; } jmp_buf_t; 686354195Sbrooks# define tcsh_setjmp() sigsetjmp(reslab.j, 1) 687354195Sbrooks# define tcsh_longjmp() siglongjmp(reslab.j, 1) 688354195Sbrooks# define setexit() (reslab.f = __func__, \ 689354195Sbrooks reslab.l = __LINE__, \ 690354195Sbrooks sigsetjmp(reslab.j, 1)) 691354195Sbrooks# define _reset() siglongjmp(reslab.j, 1) 69259243Sobrien#else 693354195Sbrooks typedef struct { const char *f; size_t l; jmp_buf j; } jmp_buf_t; 694354195Sbrooks# define tcsh_setjmp() setjmp(reslab.j) 695354195Sbrooks# define tcsh_longjmp() longjmp(reslab.j, 1) 696167465Smp#endif 69759243Sobrien 698354195Sbrooks#define setexit() (reslab.f = __func__, \ 699354195Sbrooks reslab.l = __LINE__, \ 700354195Sbrooks tcsh_setjmp()) 701354195Sbrooks#ifdef SETJMP_DEBUG 702354195Sbrooks# define _reset() xprintf("reset %s %zu\n", reslab.f, reslab.l), \ 703354195Sbrooks flush(), tcsh_longjmp() 704354195Sbrooks#else 705354195Sbrooks# define _reset() tcsh_longjmp() 706354195Sbrooks#endif 707354195Sbrooks 708167465Smp#define getexit(a) (void) ((a) = reslab) 709167465Smp#define resexit(a) (void) (reslab = (a)) 71059243Sobrien 711167465Smp#define cpybin(a, b) (void) ((a) = (b)) 71259243Sobrien 71359243Sobrienextern jmp_buf_t reslab; 71459243Sobrien 71559243SobrienEXTERN Char *gointr; /* Label for an onintr transfer */ 71659243Sobrien 717167465Smpextern struct sigaction parintr; /* Parents interrupt catch */ 718167465Smpextern struct sigaction parterm; /* Parents terminate catch */ 71959243Sobrien 72059243Sobrien/* 72159243Sobrien * Lexical definitions. 72259243Sobrien * 72359243Sobrien * All lexical space is allocated dynamically. 72459243Sobrien * The eighth/sixteenth bit of characters is used to prevent recognition, 72559243Sobrien * and eventually stripped. 72659243Sobrien */ 72759243Sobrien#define META 0200 72859243Sobrien#define ASCII 0177 729145479Smp#ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 730145479Smp/* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 731316957Sdchagin/* 732316957Sdchagin * Notice 733316957Sdchagin * 734316957Sdchagin * By fix for handling unicode name file, 32nd bit is used. 735316957Sdchagin * We need use '&' instead of '> or <' when comparing with INVALID_BYTE etc.. 736316957Sdchagin * Cast to uChar is not recommended, 737316957Sdchagin * becase Char is 4bytes but uChar is 8bytes on I32LP64. */ 738316957Sdchagin# define QUOTE 0x80000000 739316957Sdchagin# define TRIM 0x7FFFFFFF /* Mask to strip quote bit */ 740195609Smp# define UNDER 0x08000000 /* Underline flag */ 741195609Smp# define BOLD 0x04000000 /* Bold flag */ 742195609Smp# define STANDOUT 0x02000000 /* Standout flag */ 743195609Smp# define LITERAL 0x01000000 /* Literal character flag */ 744195609Smp# define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 745316957Sdchagin# define INVALID_BYTE 0xF0000000 /* Invalid character on input */ 746195609Smp# ifdef SOLARIS2 747195609Smp# define CHAR 0x30FFFFFF /* Mask to mask out the character */ 748195609Smp# else 749195609Smp# define CHAR 0x00FFFFFF /* Mask to mask out the character */ 750195609Smp# endif 751145479Smp#elif defined (SHORT_STRINGS) 75259243Sobrien# define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 753145479Smp# define TRIM 0073777 /* Mask to strip quote/lit bit */ 75459243Sobrien# define UNDER 0040000 /* Underline flag */ 75559243Sobrien# define BOLD 0020000 /* Bold flag */ 75659243Sobrien# define STANDOUT 0010000 /* Standout flag */ 75759243Sobrien# define LITERAL 0004000 /* Literal character flag */ 75859243Sobrien# define ATTRIBUTES 0074000 /* The bits used for attributes */ 759145479Smp# define INVALID_BYTE 0 76059243Sobrien# define CHAR 0000377 /* Mask to mask out the character */ 76159243Sobrien#else 76259243Sobrien# define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 76359243Sobrien# define TRIM 0177 /* Mask to strip quote bit */ 76459243Sobrien# define UNDER 0000000 /* No extra bits to do both */ 76559243Sobrien# define BOLD 0000000 /* Bold flag */ 76659243Sobrien# define STANDOUT META /* Standout flag */ 76759243Sobrien# define LITERAL 0000000 /* Literal character flag */ 76859243Sobrien# define ATTRIBUTES 0200 /* The bits used for attributes */ 769145479Smp# define INVALID_BYTE 0 77059243Sobrien# define CHAR 0000177 /* Mask to mask out the character */ 771167465Smp#endif 772145479Smp#define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 77359243Sobrien 774316957Sdchagin# define MAX_UTF32 0x7FFFFFFF /* max UTF32 is U+7FFFFFFF */ 775316957Sdchagin 77659243SobrienEXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 77759243Sobrien 77859243Sobrien/* 77959243Sobrien * Each level of input has a buffered input structure. 78059243Sobrien * There are one or more blocks of buffered input for each level, 78159243Sobrien * exactly one if the input is seekable and tell is available. 78259243Sobrien * In other cases, the shell buffers enough blocks to keep all loops 78359243Sobrien * in the buffer. 784167465Smp * 785167465Smp * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 786167465Smp * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 787167465Smp * fbuf indexing). 788167465Smp * 789167465Smp * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 790167465Smp * is no difference between byte and character offsets. 79159243Sobrien */ 79259243SobrienEXTERN struct Bin { 793145479Smp off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 79459243Sobrien off_t Bfbobp; /* Seekp of beginning of buffers */ 79559243Sobrien off_t Bfeobp; /* Seekp of end of buffers */ 79659243Sobrien int Bfblocks; /* Number of buffer blocks */ 79759243Sobrien Char **Bfbuf; /* The array of buffer blocks */ 798145479Smp#ifdef WIDE_STRINGS 799145479Smp /* Number of bytes in each character if (cantell) */ 800145479Smp unsigned char Bfclens[BUFSIZE + 1]; 801145479Smp#endif 80259243Sobrien} B; 80359243Sobrien 80459243Sobrien/* 80559243Sobrien * This structure allows us to seek inside aliases 80659243Sobrien */ 80759243Sobrienstruct Ain { 80859243Sobrien int type; 80969408Sache#define TCSH_I_SEEK 0 /* Invalid seek */ 81069408Sache#define TCSH_A_SEEK 1 /* Alias seek */ 81169408Sache#define TCSH_F_SEEK 2 /* File seek */ 81269408Sache#define TCSH_E_SEEK 3 /* Eval seek */ 81359243Sobrien union { 814167465Smp off_t _f_seek; /* A byte offset if (cantell) */ 81559243Sobrien Char* _c_seek; 81659243Sobrien } fc; 81759243Sobrien#define f_seek fc._f_seek 81859243Sobrien#define c_seek fc._c_seek 81959243Sobrien Char **a_seek; 82059243Sobrien} ; 82159243Sobrien 82259243Sobrienextern int aret; /* Type of last char returned */ 82359243Sobrien#define SEEKEQ(a, b) ((a)->type == (b)->type && \ 82459243Sobrien (a)->f_seek == (b)->f_seek && \ 82559243Sobrien (a)->a_seek == (b)->a_seek) 82659243Sobrien 82759243Sobrien#define fseekp B.Bfseekp 82859243Sobrien#define fbobp B.Bfbobp 82959243Sobrien#define feobp B.Bfeobp 83059243Sobrien#define fblocks B.Bfblocks 83159243Sobrien#define fbuf B.Bfbuf 832145479Smp#define fclens B.Bfclens 83359243Sobrien 83459243Sobrien/* 83559243Sobrien * The shell finds commands in loops by reseeking the input 83659243Sobrien * For whiles, in particular, it reseeks to the beginning of the 83759243Sobrien * line the while was on; hence the while placement restrictions. 83859243Sobrien */ 83959243SobrienEXTERN struct Ain lineloc; 84059243Sobrien 841145479SmpEXTERN int cantell; /* Is current source tellable ? */ 84259243Sobrien 84359243Sobrien/* 84459243Sobrien * Input lines are parsed into doubly linked circular 84559243Sobrien * lists of words of the following form. 84659243Sobrien */ 84759243Sobrienstruct wordent { 84859243Sobrien Char *word; 84959243Sobrien struct wordent *prev; 85059243Sobrien struct wordent *next; 85159243Sobrien}; 85259243Sobrien 85359243Sobrien/* 85459243Sobrien * During word building, both in the initial lexical phase and 85559243Sobrien * when expanding $ variable substitutions, expansion by `!' and `$' 85659243Sobrien * must be inhibited when reading ahead in routines which are themselves 85759243Sobrien * processing `!' and `$' expansion or after characters such as `\' or in 85859243Sobrien * quotations. The following flags are passed to the getC routines 85959243Sobrien * telling them which of these substitutions are appropriate for the 86059243Sobrien * next character to be returned. 86159243Sobrien */ 86259243Sobrien#define DODOL 1 86359243Sobrien#define DOEXCL 2 86459243Sobrien#define DOALL DODOL|DOEXCL 86559243Sobrien 86659243Sobrien/* 86759243Sobrien * Labuf implements a general buffer for lookahead during lexical operations. 86859243Sobrien * Text which is to be placed in the input stream can be stuck here. 86959243Sobrien * We stick parsed ahead $ constructs during initial input, 87059243Sobrien * process id's from `$$', and modified variable values (from qualifiers 87159243Sobrien * during expansion in sh.dol.c) here. 87259243Sobrien */ 873167465Smpextern struct Strbuf labuf; 874167465SmpEXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 87559243Sobrien 87659243Sobrien/* 87759243Sobrien * Parser structure 87859243Sobrien * 87959243Sobrien * Each command is parsed to a tree of command structures and 88059243Sobrien * flags are set bottom up during this process, to be propagated down 88159243Sobrien * as needed during the semantics/exeuction pass (sh.sem.c). 88259243Sobrien */ 88359243Sobrienstruct command { 88459243Sobrien unsigned char t_dtyp; /* Type of node */ 88559243Sobrien#define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 88659243Sobrien#define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 88759243Sobrien#define NODE_PIPE 3 /* t_dlef | t_drit */ 88859243Sobrien#define NODE_LIST 4 /* t_dlef ; t_drit */ 88959243Sobrien#define NODE_OR 5 /* t_dlef || t_drit */ 89059243Sobrien#define NODE_AND 6 /* t_dlef && t_drit */ 89159243Sobrien unsigned char t_nice; /* Nice value */ 89259243Sobrien#ifdef apollo 89359243Sobrien unsigned char t_systype; /* System environment */ 89459243Sobrien#endif 89559243Sobrien unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 89659243Sobrien/* save these when re-doing */ 89759243Sobrien#ifndef apollo 89859243Sobrien#define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 89959243Sobrien#else 90059243Sobrien#define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 90159243Sobrien#endif 90259243Sobrien#define F_AMPERSAND (1<<0) /* executes in background */ 90359243Sobrien#define F_APPEND (1<<1) /* output is redirected >> */ 90459243Sobrien#define F_PIPEIN (1<<2) /* input is a pipe */ 90559243Sobrien#define F_PIPEOUT (1<<3) /* output is a pipe */ 90659243Sobrien#define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 90759243Sobrien#define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 90859243Sobrien/* spare */ 90959243Sobrien#define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 91059243Sobrien#define F_OVERWRITE (1<<8) /* output was ! */ 91159243Sobrien#define F_READ (1<<9) /* input redirection is << */ 91259243Sobrien#define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 91359243Sobrien#define F_NICE (1<<11) /* t_nice is meaningful */ 91459243Sobrien#define F_NOHUP (1<<12) /* nohup this command */ 91559243Sobrien#define F_TIME (1<<13) /* time this command */ 91659243Sobrien#define F_BACKQ (1<<14) /* command is in `` */ 91759243Sobrien#define F_HUP (1<<15) /* hup this command */ 91859243Sobrien#ifdef apollo 91959243Sobrien#define F_VER (1<<16) /* execute command under SYSTYPE */ 92059243Sobrien#endif 92159243Sobrien union { 92259243Sobrien Char *T_dlef; /* Input redirect word */ 92359243Sobrien struct command *T_dcar; /* Left part of list/pipe */ 92459243Sobrien } L; 92559243Sobrien union { 92659243Sobrien Char *T_drit; /* Output redirect word */ 92759243Sobrien struct command *T_dcdr; /* Right part of list/pipe */ 92859243Sobrien } R; 92959243Sobrien#define t_dlef L.T_dlef 93059243Sobrien#define t_dcar L.T_dcar 93159243Sobrien#define t_drit R.T_drit 93259243Sobrien#define t_dcdr R.T_dcdr 93359243Sobrien Char **t_dcom; /* Command/argument vector */ 93459243Sobrien struct command *t_dspr; /* Pointer to ()'d subtree */ 93559243Sobrien}; 93659243Sobrien 93759243Sobrien 93859243Sobrien/* 93959243Sobrien * The keywords for the parser 94059243Sobrien */ 94159243Sobrien#define TC_BREAK 0 94259243Sobrien#define TC_BRKSW 1 94359243Sobrien#define TC_CASE 2 94459243Sobrien#define TC_DEFAULT 3 94559243Sobrien#define TC_ELSE 4 94659243Sobrien#define TC_END 5 94759243Sobrien#define TC_ENDIF 6 94859243Sobrien#define TC_ENDSW 7 94959243Sobrien#define TC_EXIT 8 95059243Sobrien#define TC_FOREACH 9 95159243Sobrien#define TC_GOTO 10 95259243Sobrien#define TC_IF 11 95359243Sobrien#define TC_LABEL 12 95459243Sobrien#define TC_LET 13 95559243Sobrien#define TC_SET 14 95659243Sobrien#define TC_SWITCH 15 95759243Sobrien#define TC_TEST 16 95859243Sobrien#define TC_THEN 17 95959243Sobrien#define TC_WHILE 18 96059243Sobrien 96159243Sobrien/* 96259243Sobrien * These are declared here because they want to be 96359243Sobrien * initialized in sh.init.c (to allow them to be made readonly) 96459243Sobrien */ 96559243Sobrien 96659243Sobrien#if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 96759243Sobrien /* Avoid hpux ansi mode spurious warnings */ 96859243Sobrientypedef void (*bfunc_t) (); 96959243Sobrien#else 970167465Smptypedef void (*bfunc_t) (Char **, struct command *); 97159243Sobrien#endif /* hpux && __STDC__ && !__GNUC__ */ 97259243Sobrien 973167465Smpextern const struct biltins { 974145479Smp const char *bname; 97559243Sobrien bfunc_t bfunct; 97659243Sobrien int minargs, maxargs; 97759243Sobrien} bfunc[]; 97859243Sobrienextern int nbfunc; 97969408Sache#ifdef WINNT_NATIVE 98059243Sobrienextern struct biltins nt_bfunc[]; 98159243Sobrienextern int nt_nbfunc; 98269408Sache#endif /* WINNT_NATIVE*/ 983145479Smpextern int bequiet; 98459243Sobrien 98559243Sobrienextern struct srch { 986145479Smp const char *s_name; 987145479Smp int s_value; 988145479Smp} srchn[]; 98959243Sobrienextern int nsrchn; 99059243Sobrien 99159243Sobrien/* 99259243Sobrien * Structure defining the existing while/foreach loops at this 99359243Sobrien * source level. Loops are implemented by seeking back in the 99459243Sobrien * input. For foreach (fe), the word list is attached here. 99559243Sobrien */ 99659243SobrienEXTERN struct whyle { 99759243Sobrien struct Ain w_start; /* Point to restart loop */ 99859243Sobrien struct Ain w_end; /* End of loop (0 if unknown) */ 99959243Sobrien Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 100059243Sobrien Char *w_fename; /* Name for fe */ 100159243Sobrien struct whyle *w_next; /* Next (more outer) loop */ 100259243Sobrien} *whyles; 100359243Sobrien 100459243Sobrien/* 100559243Sobrien * Variable structure 100659243Sobrien * 100759243Sobrien * Aliases and variables are stored in AVL balanced binary trees. 100859243Sobrien */ 100959243SobrienEXTERN struct varent { 101059243Sobrien Char **vec; /* Array of words which is the value */ 101159243Sobrien Char *v_name; /* Name of variable/alias */ 101259243Sobrien int v_flags; /* Flags */ 101359243Sobrien#define VAR_ALL -1 101459243Sobrien#define VAR_READONLY 1 101559243Sobrien#define VAR_READWRITE 2 101659243Sobrien#define VAR_NOGLOB 4 101759243Sobrien#define VAR_FIRST 32 101859243Sobrien#define VAR_LAST 64 101959243Sobrien struct varent *v_link[3]; /* The links, see below */ 102059243Sobrien int v_bal; /* Balance factor */ 102159243Sobrien} shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 102259243Sobrien 102359243Sobrien#define v_left v_link[0] 102459243Sobrien#define v_right v_link[1] 102559243Sobrien#define v_parent v_link[2] 102659243Sobrien 102759243Sobrien#define adrof(v) adrof1(v, &shvhed) 102859243Sobrien#define varval(v) value1(v, &shvhed) 102959243Sobrien 103059243Sobrien/* 103159243Sobrien * The following are for interfacing redo substitution in 103259243Sobrien * aliases to the lexical routines. 103359243Sobrien */ 103459243SobrienEXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 103559243SobrienEXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 103659243SobrienEXTERN Char **alvec IZERO_STRUCT, 103759243Sobrien *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 103859243Sobrien 103959243Sobrien/* 104059243Sobrien * Filename/command name expansion variables 104159243Sobrien */ 104259243Sobrien 104359243Sobrien#ifndef MAXPATHLEN 1044167465Smp# ifdef PATH_MAX 1045167465Smp# define MAXPATHLEN PATH_MAX 1046167465Smp# else 1047167465Smp# define MAXPATHLEN 2048 1048167465Smp# endif 104959243Sobrien#endif /* MAXPATHLEN */ 105059243Sobrien 105159243Sobrien#ifndef HAVENOLIMIT 105259243Sobrien/* 105359243Sobrien * resource limits 105459243Sobrien */ 105559243Sobrienextern struct limits { 1056145479Smp int limconst; 1057145479Smp const char *limname; 1058145479Smp int limdiv; 1059145479Smp const char *limscale; 106059243Sobrien} limits[]; 106159243Sobrien#endif /* !HAVENOLIMIT */ 106259243Sobrien 106359243Sobrien/* 106459243Sobrien * History list 106559243Sobrien * 106659243Sobrien * Each history list entry contains an embedded wordlist 106759243Sobrien * from the scanner, a number for the event, and a reference count 106859243Sobrien * to aid in discarding old entries. 106959243Sobrien * 107059243Sobrien * Essentially "invisible" entries are put on the history list 107159243Sobrien * when history substitution includes modifiers, and thrown away 107259243Sobrien * at the next discarding since their event numbers are very negative. 107359243Sobrien */ 107459243SobrienEXTERN struct Hist { 107559243Sobrien struct wordent Hlex; 1076231990Smp int Hnum; /* eventno when inserted into history list */ 107759243Sobrien int Href; 107859243Sobrien time_t Htime; 107959243Sobrien Char *histline; 1080231990Smp struct Hist *Hnext, *Hprev; /* doubly linked list */ 1081231990Smp unsigned Hhash; /* hash value of command line */ 108259243Sobrien} Histlist IZERO_STRUCT; 108359243Sobrien 1084316957Sdchaginextern struct wordent paraml; /* Current lexical word list */ 108559243SobrienEXTERN int eventno; /* Next events number */ 108659243SobrienEXTERN int lastev; /* Last event reference (default) */ 108759243Sobrien 108859243SobrienEXTERN Char HIST; /* history invocation character */ 108959243SobrienEXTERN Char HISTSUB; /* auto-substitute character */ 109059243SobrienEXTERN Char PRCH; /* Prompt symbol for regular users */ 109159243SobrienEXTERN Char PRCHROOT; /* Prompt symbol for root */ 109259243Sobrien 109359243Sobrien/* 109459243Sobrien * For operating systems with single case filenames (OS/2) 109559243Sobrien */ 109659243Sobrien#ifdef CASE_INSENSITIVE 1097145479Smp# ifdef WIDE_STRINGS 1098145479Smp# define samecase(x) (towlower(x)) 1099145479Smp# else 1100145479Smp# define samecase(x) (isupper((unsigned char)(x)) ? \ 1101145479Smp tolower((unsigned char)(x)) : (x)) 1102145479Smp# endif 110359243Sobrien#else 110459243Sobrien# define samecase(x) (x) 110559243Sobrien#endif /* CASE_INSENSITIVE */ 110659243Sobrien 110759243Sobrien/* 110859243Sobrien * strings.h: 110959243Sobrien */ 111059243Sobrien#ifndef SHORT_STRINGS 111159243Sobrien#define Strchr(a, b) strchr(a, b) 111259243Sobrien#define Strrchr(a, b) strrchr(a, b) 111359243Sobrien#define Strcat(a, b) strcat(a, b) 111459243Sobrien#define Strncat(a, b, c) strncat(a, b, c) 111559243Sobrien#define Strcpy(a, b) strcpy(a, b) 111659243Sobrien#define Strncpy(a, b, c) strncpy(a, b, c) 111759243Sobrien#define Strlen(a) strlen(a) 111859243Sobrien#define Strcmp(a, b) strcmp(a, b) 111959243Sobrien#define Strncmp(a, b, c) strncmp(a, b, c) 1120131962Smp#define Strcasecmp(a, b) strcasecmp(a, b) 112159243Sobrien 112259243Sobrien#define Strspl(a, b) strspl(a, b) 1123167465Smp#define Strnsave(a, b) strnsave(a, b) 112459243Sobrien#define Strsave(a) strsave(a) 112559243Sobrien#define Strend(a) strend(a) 112659243Sobrien#define Strstr(a, b) strstr(a, b) 112759243Sobrien 112859243Sobrien#define str2short(a) (a) 112959243Sobrien#define blk2short(a) saveblk(a) 113059243Sobrien#define short2blk(a) saveblk(a) 1131167465Smp#define short2str(a) caching_strip(a) 113259243Sobrien#else 1133231990Smp#if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1134145479Smp#define Strchr(a, b) wcschr(a, b) 1135145479Smp#define Strrchr(a, b) wcsrchr(a, b) 1136145479Smp#define Strcat(a, b) wcscat(a, b) 1137145479Smp#define Strncat(a, b, c) wcsncat(a, b, c) 1138145479Smp#define Strcpy(a, b) wcscpy(a, b) 1139145479Smp#define Strncpy(a, b, c) wcsncpy(a, b, c) 1140145479Smp#define Strlen(a) wcslen(a) 1141145479Smp#define Strcmp(a, b) wcscmp(a, b) 1142145479Smp#define Strncmp(a, b, c) wcsncmp(a, b, c) 1143145479Smp#else 114459243Sobrien#define Strchr(a, b) s_strchr(a, b) 114559243Sobrien#define Strrchr(a, b) s_strrchr(a, b) 114659243Sobrien#define Strcat(a, b) s_strcat(a, b) 114759243Sobrien#define Strncat(a, b, c) s_strncat(a, b, c) 114859243Sobrien#define Strcpy(a, b) s_strcpy(a, b) 114959243Sobrien#define Strncpy(a, b, c) s_strncpy(a, b, c) 115059243Sobrien#define Strlen(a) s_strlen(a) 115159243Sobrien#define Strcmp(a, b) s_strcmp(a, b) 115259243Sobrien#define Strncmp(a, b, c) s_strncmp(a, b, c) 1153145479Smp#endif 1154131962Smp#define Strcasecmp(a, b) s_strcasecmp(a, b) 115559243Sobrien 115659243Sobrien#define Strspl(a, b) s_strspl(a, b) 1157167465Smp#define Strnsave(a, b) s_strnsave(a, b) 115859243Sobrien#define Strsave(a) s_strsave(a) 115959243Sobrien#define Strend(a) s_strend(a) 116059243Sobrien#define Strstr(a, b) s_strstr(a, b) 116159243Sobrien#endif 116259243Sobrien 116359243Sobrien/* 116459243Sobrien * setname is a macro to save space (see sh.err.c) 116559243Sobrien */ 1166145479SmpEXTERN const char *bname; 116759243Sobrien 116859243Sobrien#define setname(a) (bname = (a)) 116959243Sobrien 117059243Sobrien#ifdef VFORK 117159243SobrienEXTERN Char *Vsav; 117259243SobrienEXTERN Char *Vdp; 117359243SobrienEXTERN Char *Vexpath; 117459243SobrienEXTERN char **Vt; 117559243Sobrien#endif /* VFORK */ 117659243Sobrien 117759243SobrienEXTERN Char **evalvec; 117859243SobrienEXTERN Char *evalp; 117959243Sobrien 118059243Sobrienextern struct mesg { 1181145479Smp const char *iname; /* name from /usr/include */ 1182145479Smp const char *pname; /* print name */ 1183145479Smp} mesg[]; 118459243Sobrien 1185316957Sdchagin/* word_chars is set by default to WORD_CHARS (or WORD_CHARS_VI) but can 1186316957Sdchagin be overridden by the wordchars variable--if unset, reverts to 1187316957Sdchagin WORD_CHARS (or WORD_CHARS_VI) */ 118859243Sobrien 118959243SobrienEXTERN Char *word_chars; 119059243Sobrien 119159243Sobrien#define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1192316957Sdchagin#define WORD_CHARS_VI "_" /* default chars besides alnums in words */ 119359243Sobrien 119459243SobrienEXTERN Char *STR_SHELLPATH; 119559243Sobrien 119659243Sobrien#ifdef _PATH_BSHELL 119759243SobrienEXTERN Char *STR_BSHELL; 119859243Sobrien#endif 119959243SobrienEXTERN Char *STR_WORD_CHARS; 1200316957SdchaginEXTERN Char *STR_WORD_CHARS_VI; 120159243SobrienEXTERN Char **STR_environ IZERO; 120259243Sobrien 120359243Sobrienextern int dont_free; /* Tell free that we are in danger if we free */ 120459243Sobrien 120559243Sobrienextern Char *INVPTR; 120659243Sobrienextern Char **INVPPTR; 120759243Sobrien 120859243Sobrienextern char *progname; 120959243Sobrienextern int tcsh; 1210145479Smpextern int xlate_cr; 1211145479Smpextern int output_raw; 1212145479Smpextern int lbuffed; 1213145479Smpextern time_t Htime; 1214145479Smpextern int numeof; 1215145479Smpextern int insource; 1216145479Smpextern char linbuf[]; 1217145479Smpextern char *linp; 1218145479Smpextern int nsig; 1219145479Smp#ifdef VFORK 1220145479Smpextern int use_fork; 1221145479Smp#endif 1222145479Smpextern int tellwhat; 1223145479Smpextern int NoNLSRebind; 1224167465Smp#if !HAVE_DECL_ENVIRON 1225167465Smpextern char **environ; 1226167465Smp#endif 122759243Sobrien 122859243Sobrien#include "tc.h" 122959243Sobrien 123069408Sache#ifndef WINNT_NATIVE 123159243Sobrien# ifdef NLS_CATALOGS 1232231990Smp# ifdef HAVE_FEATURES_H 123359243Sobrien# include <features.h> 123459243Sobrien# endif 1235231990Smp# ifdef HAVE_NL_LANGINFO 1236231990Smp# include <langinfo.h> 123759243Sobrien# endif 1238231990Smp# ifdef __uxps__ 1239231990Smp# define gettxt gettxt_ds 124059243Sobrien# endif 1241231990Smp# include <nl_types.h> 1242231990Smp# ifdef __uxps__ 1243231990Smp# undef gettxt 1244231990Smp# endif 124559243SobrienEXTERN nl_catd catd; 1246167465Smp# if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1247145479Smp# define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1248145479Smp# else 1249167465Smp# define CGETS(b, c, d) xcatgets(catd, b, c, d) 1250145479Smp# endif 125159243Sobrien# define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 125259243Sobrien# else 125359243Sobrien# define CGETS(b, c, d) d 125459243Sobrien# define CSAVS(b, c, d) d 125559243Sobrien# endif 125669408Sache#else /* WINNT_NATIVE */ 125759243Sobrien# define CGETS(b, c, d) nt_cgets( b, c, d) 125859243Sobrien# define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 125969408Sache#endif /* WINNT_NATIVE */ 126059243Sobrien 1261131962Smp#if defined(FILEC) 1262145479Smpextern int filec; 1263131962Smp#endif /* FILEC */ 1264131962Smp 1265145479Smp#include "sh.decls.h" 126659243Sobrien/* 126759243Sobrien * Since on some machines characters are unsigned, and the signed 126859243Sobrien * keyword is not universally implemented, we treat all characters 126959243Sobrien * as unsigned and sign extend them where we need. 127059243Sobrien */ 127159243Sobrien#define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 127259243Sobrien 1273145479Smp/* 1274145479Smp * explanation for use by the "--help" option 1275145479Smp */ 1276145479Smp#define HELP_STRING "\ 1277145479Smp-b file batch mode, read and execute commands from `file' \n\ 1278145479Smp-c command run `command' from next argument \n\ 1279145479Smp-d load directory stack from `~/.cshdirs' \n\ 1280145479Smp-Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1281145479Smp-e exit on any error \n\ 1282145479Smp-f start faster by ignoring the start-up file \n\ 1283145479Smp-F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1284145479Smp-i interactive, even when input is not from a terminal \n\ 1285145479Smp-l act as a login shell, must be the only option specified \n\ 1286145479Smp-m load the start-up file, whether or not owned by effective user \n\ 1287145479Smp-n file no execute mode, just check syntax of the following `file' \n\ 1288145479Smp-q accept SIGQUIT for running under a debugger \n\ 1289145479Smp-s read commands from standard input \n\ 1290145479Smp-t read one line from standard input \n\ 1291145479Smp-v echo commands after history substitution \n\ 1292145479Smp-V like -v but including commands read from the start-up file \n\ 1293145479Smp-x echo commands immediately before execution \n\ 1294145479Smp-X like -x but including commands read from the start-up file \n\ 1295145479Smp--help print this message and exit \n\ 1296145479Smp--version print the version shell variable and exit \n\ 1297145479Smp\nSee the tcsh(1) manual page for detailed information.\n" 1298145479Smp 1299145479Smp#include "tc.nls.h" 1300145479Smp 130159243Sobrien#endif /* _h_sh */ 1302